In recent years, China's molds have grown at an average rate of over 15%, which is more than double the average value of China's GDP. According to the “National Basic Situation of Mold Specialized Plants†compiled by the China Die and Mould Industry Association Management and Management Committee, casting molds account for approximately 5% of the total output value of various types of molds, and the annual growth rate is as high as 25%. Luo Baihui, head of the International Die & Metals and Plastic Industry Suppliers Association, believes that in recent years, the casting mold market has been extremely active. With the sustained growth of the Chinese economy, the foundry industry will maintain high growth and drive the development of the foundry mold manufacturing industry. It is expected that casting molds will be developed in the future. The overall demand will also have a lot of room for development.
History of Foundry Mould Development China's foundry mold industry has gone through a difficult process until it was still lagging behind in 1976. Since 1977, due to the vigorous development of China's machinery industry, electronics, light industry, instrumentation, transportation and other industrial sectors, the demand for casting molds has been increasing in quantity, quality requirements are getting higher and higher, and the delivery period is getting shorter and shorter. . Therefore, the relevant departments in our country have given great attention to the casting mold industry. The mold has been listed as a key scientific research project for the 6th and 7th Five-Year Plan, sending people to study abroad for study, introducing foreign advanced technology for casting molds, and formulating national standards for casting molds. Luo Baihui, head of the International Mould and Metals and Plastics Industry Suppliers Association believes that through this series of measures, the foundry mold industry has made considerable progress and has made breakthroughs in certain technologies.
The second automobile manufacturer used high-tech and new materials to manufacture high-quality large-scale casting molds for the Japanese Isuzu Plant and won a good international reputation. In 1980, Shanghai has been able to manufacture a large-scale thermosetting plastic package mold with 400 mold cavities. This casting mold requires a small form error and a surface roughness of less than 0.1 um. Subsequently, large-scale and complex plastic molding casting molds for household appliances were also successfully trial-produced. The cemented carbide die with an average life of 4 million punches and burrs below 0.5 μm was also conquered. This 6-station rotor blade was also conquered. The production of casting molds has reached the international advanced level.
At the same time, it also produced precision progressive dies for more than 10 stations, as well as plastic molding foundry molds with high precision and difficulty, and developed multi-position progressive dies and multi-types with micrometer accuracy through the introduction of digestion technology. Cavity plastic molding die.
In addition, computer-aided design (CAD) and computer-aided manufacturing (CAM) techniques for casting molds have also begun research and achieved initial results. During this period, the foundry mold industry really got a big development.
At present, there are more than 6,000 casting mold manufacturing plants in China, with about 300,000 employees, about 800,000 sets of casting molds, and more than 160,000 standard mold sets. China's casting mold industry has taken shape. According to Luo Baihui, head of the International Die & Metals and Plastics Industry Suppliers Association, China's casting mold manufacturers are concentrated in the coastal provinces and cities, as well as automobile and motorcycle production bases. The scale of the factory is not very large, and the number is generally not more than 300 people. The annual output value is not more than 50 million yuan. The productivity per capita of the enterprises with high production efficiency is between 200,000 and 300,000 yuan. The vast majority of manufacturers mainly produce medium and small-sized molds. The grades of the molds are middle and low grades.
Pearl River Delta casting mold manufacturers mainly in Guangdong Province, Guangzhou, Dongguan, Shenzhen, Foshan and other places, the factory is relatively dispersed. Since the economy was opened earlier and foreign advanced technologies were absorbed more rapidly, there were more export-oriented enterprises in the region. There were a batch of Taiwan-funded, Hong Kong-funded and Japanese-funded mold manufacturers. As a whole, the quality of the molds was good and the volume of mold exports was large. Large-scale professional manufacturers include: Guangzhou Mould Manufacturing Co., Ltd.
Casting mold manufacturers in the East China region are mainly located in Zhejiang Province, Jiangsu Province and Shanghai Municipality. With strong geographic advantages in China’s industrial heavyweights and the automobile industry, the development momentum is strong. Faced with the needs of foreign companies or joint ventures, the newly-built enterprises The general starting point is higher, the quality of employees is good, and the development momentum is large.
Zhejiang's foundry mold manufacturers are mainly concentrated in Beilun, Ninghai, Zhangzhou and Yuyao. In recent years, the area has developed rapidly, plant and equipment investment has been large, and many companies have also increased the production of castings. In particular, the Beilun District of Ningbo, known as the hometown of China's foundry molds, is currently the region with the most dense casting mold production and the largest supply of commercial molds in the country. There are more than 400 casting mold manufacturing companies in the country, and the sales model exceeds RMB 700 million per year. Among them, there are 16 companies with annual sales of tens of millions of yuan, and the annual output values ​​of specialty mold villages like Qinglin, Dongjing and Hengshan are all over 100 million yuan. Large-scale professional manufacturers include: Ningbo Beilun Brilliant Mould Industrial Co., Ltd., Ningbo Che Lighting Electric Co., Ltd., Ningbo Xinda Mould Manufacturing Co., Ltd., Ningbo Xunhui Electric Co., Ltd., Ningbo Haozhi Machinery Mould Co., Ltd., Ningbo Hua朔 Die Machinery Co., Ltd., Ningbo Xinhai Mould Co., Ltd., Ningbo Cheng Shing Co., Ltd., etc.
Jiangsu casting mold manufacturers are mainly concentrated in Suzhou, Changzhou, Kunshan, where a large production of professional manufacturers have Changzhou Kang Lida Top Die Co., Ltd..
In addition, the output of casting molds in Jilin Province and Liaoning Province in the northeast, Hunan Province in the central region, and Sichuan Province and Chongqing City in the west are also numerous. For example: Kyoritsu Seiki (Dalian) Co., Ltd. is now a Japanese wholly-owned company wholly operated by the Chinese. The company's internal management is rigorous and its production efficiency is high. With the help of Japan's advanced molding technology, it is developing national brands.
In the above-mentioned areas, the most complete and smoothest supply of steel, electrode materials, hydraulic components, and molds related to the production of casting molds is the most concentrated, and mold form manufacturing, outsourcing mechanical processing, external electrode production, and heat treatment cooperation manufacturers are the most concentrated.
The national casting mold manufacturing enterprises can be roughly divided into the following categories:
The first category is the casting mold manufacturing factory. These enterprises serve the entire society and undertake various kinds of casting molds required by various industries. The equipment is advanced, the technology is superior, and the scale is relatively large. At present, it is the main supplier of commodity molds in China.
The second category is a mold shop or branch factory affiliated with a foundry company. Such enterprises can personally serve the enterprise, provide timely service, have clear technical requirements for the self-contained molds, and replicate the original imported foreign molds. They have the advantage of being near the water, and can basically meet the self-sufficiency of the molds of the enterprise. Needs, some of them also undertake a small number of tasks outside the enterprise, and sometimes also send some difficult and time-consuming molds to professional factories to produce. In recent years, many foundries no longer increase the investment in mold making equipment and reduce the scale, and instead rely mainly on mold repair and maintenance. Among the large-scale enterprises in this category are: Chongqing Xinjiang Xingao Mould Co., Ltd., Dalian Yaming Auto Parts Manufacturing Co., Ltd., Gao Yao Hongtu Mould Manufacturing Co., Ltd., Nanhai Wencan Casting Co., Ltd., and Chengdu Xingguang Foundry Industry Co., Ltd. , Shanghai Qiantong Automotive Accessories Co., Ltd., Shanghai Pilbong Non-ferrous Components Co., Ltd., etc.
Casting mold transformation and upgrading mold is a combination of technology-intensive and labor-intensive industries. China has excellent talents, mold clamping technology is high, and labor costs are low. Luo Baihui said that after entering the WTO, China's investment environment has been greatly improved, foreign investment can enjoy national treatment, there will be no problem of foreign exchange balance, export quotas, so the Chinese mold industry will have more Sino-foreign joint ventures and Foreign wholly-owned mold enterprises. At the same time, the outward shift of manufacturing production points in Japan, Singapore, and Taiwan and other countries and regions is irreversible. The more open mainland China is naturally the first choice, and mold companies are bound to follow suit. Luo Baihui, head of the International Mould, Hardware and Plastics Industry Suppliers Association, pointed out that in order to develop the foundry mold enterprises in China, it is necessary to change the mechanism, develop specialized production, increase market awareness, promote the adjustment of the industrial structure of the foundry mold industry, and actively promote industry management. Establish an industry management coordination network; strengthen the training of technical talents and strengthen one expertise; use CAD/CAM/CAE/CAPP technology extensively to improve the level of mold design and manufacturing; vigorously develop rapid tooling and rapid prototyping technologies and high-speed machining Technology, high-speed measurement technology, reverse engineering, and other new technologies, new processes, and new materials; improve the standardization of casting molds and expand the use of standard parts. Mould enterprises must constantly improve their own technical level and management capabilities in order to have a foothold in the domestic mold market, in order to gradually open up foreign mold market.
Foundry mold companies need to change mechanisms, develop specialized production, increase market awareness, and promote industrial restructuring of the foundry mold industry. In the past, under the condition of planned economy, large-scale enterprises had a mold branch (workshop) within the large-scale enterprise. The manufacturing capacity and technical strength were strong and accounted for a considerable proportion of the domestic mold production value. Except for a few standard parts purchased, most of the workload was By the mold factory to complete, resulting in a low degree of specialization and standardization. Coupled with the constraints of the enterprise management system, mold manufacturing cycle is long and can not meet the market requirements. In recent years, mold factories have generally increased investment in equipment, improved the level of technology and the ability to make molds, and the quality of molds has greatly improved. In Luo Baihui's view, the domestic production of small and medium sized molds can fully meet the needs of the domestic market. Large-scale, complex, and precise molds relying on imports have been greatly improved; medium- and low-grade molds are in excess of demand, and large-scale and high-demand castings are required. Mould imports are quite a few; the casting modulus of export is increasing year by year; the total amount of domestic commercial mold has exceeded half, and the self-produced mold no longer dominates.
During the 11th Five-Year Plan period, China's foundry mold industry has gradually integrated into the world trade integration. Through thorough reforms, the impact of the planned economy will be eliminated. To this end, the degree of commercialization of molds will also be greatly improved. The pace of transformation of state-owned enterprises will be accelerated, and the development of private and individual companies will cause major changes in the structure of the mold industry. . The socialization and specialization of the mold industry will be strengthened. This is an effective measure to resist the impact of joining the World Trade Organization. Some of the traditional mold shops in the company will be transformed into new economic entities that are independently accounted for, and most of them will be phased out. More mold companies will embark on the path of specialization and maintain their advantages in products of their own specialty. The special and refined way can survive and develop in the competition. In the past, those who did not have expertise projects, including all types of mold enterprises, caused the dispersion of equipment, talents, funds, etc. These enterprises will gradually become stronger in the projects with comparative advantage and be developed, and the non-expert projects will be eliminated. The standardization of molds will also be further promoted, and the standard parts manufacturing companies of molds will also develop rapidly.
During the period of the 12th Five-Year Plan period, it is necessary to continue to promote industry management, build an industry management coordination network, and establish a fair and reasonable mold mold price system. To further standardize the mold market, the market demand for quality is more stringent, and quality is the market.
The quality of modern moulding depends on physical factors, and the reproduction ability is strong. The overall level is easy to control. Modern modeling is performed in a parallel manner. The design and manufacturing are based on a common mathematical model. They can communicate in parallel through the public database under the guidance of the overall mold process plan, coordinate with each other, share information, reduce duplication of labor, and shorten the processing cycle.
To improve the design and manufacturing level of casting molds, mainly including: CAD/CAM/CAE/CAPP technology is widely used; integration of process and tooling design; improvement of the design and manufacturing level of large-scale, precision, complex, long-life molds; vigorous development of rapid mold making And rapid prototyping technology (RPM); develop high-speed processing technology, develop high-speed measurement technology and reverse engineering (RP); use high-quality mold materials, improve surface treatment technology; increase the standardization of casting molds and expand the use of standard parts.
Constantly introducing advanced manufacturing technology and advanced equipment, parts mapping, generally no longer use the rubbing method, the model method, and the use of three coordinate measuring instruments and laser scanners and other advanced measurement equipment and measurement technology, mapping parts are not only accurate and rapid, Moreover, the measured data and graphics can be directly input into the computer, and various documents can be created to display the three-dimensional model and two-dimensional graphics of the parts. In terms of design, due to the universal application of CAD, many companies and factories have already gotten rid of the board or are trying to get rid of the board. The promotion of three-dimensional modeling software not only provides guarantees for CNC programming and integration, but also can be used at design time. Perform assembly interference checks to ensure the design and process are reasonable. In terms of processing, the extensive use of CNC machine tools not only ensures the accuracy and quality of the casting mold parts, but also increases machining efficiency by using cutting speeds, high feed rates, and high machining quality as the main features. Times even ten times. Some large-scale and high-level foundry mold factories continue to emerge. Some hand-work workshops without technology, water-free equipment, and simple equipment have gradually been phased out. This has made our country's foundry mold industry a long-term development. Luo Baihui, head of the International Tooling & Hardware & Plastics Industry Suppliers Association, pointed out that under such circumstances, we should highlight the accuracy problems in the production of foundry molds, push the casting mold industry in China into a new stage of development, and give full play to castings. Mold industry plays an important role in the national economy. Advancing with the times will enable our country’s national economy to achieve rapid development, accelerate the realization of the four modernizations, and become an economic power and technological power.
Prospects for the development of casting molds In recent years, China's molds have grown at an average rate of more than 15%, which is more than double the average value of China's GDP. According to the “National Basic Situation of Mold Specialized Plants†compiled by the China Die and Mould Industry Association Management and Management Committee, casting molds account for approximately 5% of the total output value of various types of molds, and the annual growth rate is as high as 25%. Luo Baihui, head of the International Die & Metals and Plastics Industry Suppliers Association, believes that the high growth rate of the foundry mold industry is mainly due to the rapid development of China's automobile and motorcycle industries and the rapid growth in the production of casting molds. As we all know, the castings have a wide range of applications, and they cover almost all industrial fields. Among them, the castings of automobile parts are ranked first in terms of their number, varieties, strict requirements, high quality and non-ferrous metal materials. , The largest share of the entire foundry industry.
At present, China’s auto and motorcycle industry has entered a period of rapid growth, and its output has increased significantly for many years in a row, ranking first in the world, especially for cars that are closely associated with the foundry industry. The growth is fastest, and it is rapidly increasing for complex, large-scale, The demand for precision casting molds has thus served as an important support for the foundry industry - the casting mold industry has gained unprecedented opportunities for development. It can be predicted that in the next few years, the production of casting molds in China will still obtain strong thrust mainly from the domestic automobile industry.
Compared with countries such as Southeast Asia and the Middle East, China's molds have advantages in terms of technology, quality and price, and their export prospects are promising. While foreign-funded enterprises enter China, the return of molds and exports will also become an important part of China's mold exports. Luo Baihui said that because China's mold production costs are much lower than foreign countries, with the improvement of mold manufacturing technology and quality, not only can reduce the import of molds, but also may gradually open up the export market and export more molds to foreign countries. During the 12th Five-Year Plan period, mold imports will continue to maintain its growth momentum in the short term, and mold exports will have great development.
History of Foundry Mould Development China's foundry mold industry has gone through a difficult process until it was still lagging behind in 1976. Since 1977, due to the vigorous development of China's machinery industry, electronics, light industry, instrumentation, transportation and other industrial sectors, the demand for casting molds has been increasing in quantity, quality requirements are getting higher and higher, and the delivery period is getting shorter and shorter. . Therefore, the relevant departments in our country have given great attention to the casting mold industry. The mold has been listed as a key scientific research project for the 6th and 7th Five-Year Plan, sending people to study abroad for study, introducing foreign advanced technology for casting molds, and formulating national standards for casting molds. Luo Baihui, head of the International Mould and Metals and Plastics Industry Suppliers Association believes that through this series of measures, the foundry mold industry has made considerable progress and has made breakthroughs in certain technologies.
The second automobile manufacturer used high-tech and new materials to manufacture high-quality large-scale casting molds for the Japanese Isuzu Plant and won a good international reputation. In 1980, Shanghai has been able to manufacture a large-scale thermosetting plastic package mold with 400 mold cavities. This casting mold requires a small form error and a surface roughness of less than 0.1 um. Subsequently, large-scale and complex plastic molding casting molds for household appliances were also successfully trial-produced. The cemented carbide die with an average life of 4 million punches and burrs below 0.5 μm was also conquered. This 6-station rotor blade was also conquered. The production of casting molds has reached the international advanced level.
At the same time, it also produced precision progressive dies for more than 10 stations, as well as plastic molding foundry molds with high precision and difficulty, and developed multi-position progressive dies and multi-types with micrometer accuracy through the introduction of digestion technology. Cavity plastic molding die.
In addition, computer-aided design (CAD) and computer-aided manufacturing (CAM) techniques for casting molds have also begun research and achieved initial results. During this period, the foundry mold industry really got a big development.
At present, there are more than 6,000 casting mold manufacturing plants in China, with about 300,000 employees, about 800,000 sets of casting molds, and more than 160,000 standard mold sets. China's casting mold industry has taken shape. According to Luo Baihui, head of the International Die & Metals and Plastics Industry Suppliers Association, China's casting mold manufacturers are concentrated in the coastal provinces and cities, as well as automobile and motorcycle production bases. The scale of the factory is not very large, and the number is generally not more than 300 people. The annual output value is not more than 50 million yuan. The productivity per capita of the enterprises with high production efficiency is between 200,000 and 300,000 yuan. The vast majority of manufacturers mainly produce medium and small-sized molds. The grades of the molds are middle and low grades.
Pearl River Delta casting mold manufacturers mainly in Guangdong Province, Guangzhou, Dongguan, Shenzhen, Foshan and other places, the factory is relatively dispersed. Since the economy was opened earlier and foreign advanced technologies were absorbed more rapidly, there were more export-oriented enterprises in the region. There were a batch of Taiwan-funded, Hong Kong-funded and Japanese-funded mold manufacturers. As a whole, the quality of the molds was good and the volume of mold exports was large. Large-scale professional manufacturers include: Guangzhou Mould Manufacturing Co., Ltd.
Casting mold manufacturers in the East China region are mainly located in Zhejiang Province, Jiangsu Province and Shanghai Municipality. With strong geographic advantages in China’s industrial heavyweights and the automobile industry, the development momentum is strong. Faced with the needs of foreign companies or joint ventures, the newly-built enterprises The general starting point is higher, the quality of employees is good, and the development momentum is large.
Zhejiang's foundry mold manufacturers are mainly concentrated in Beilun, Ninghai, Zhangzhou and Yuyao. In recent years, the area has developed rapidly, plant and equipment investment has been large, and many companies have also increased the production of castings. In particular, the Beilun District of Ningbo, known as the hometown of China's foundry molds, is currently the region with the most dense casting mold production and the largest supply of commercial molds in the country. There are more than 400 casting mold manufacturing companies in the country, and the sales model exceeds RMB 700 million per year. Among them, there are 16 companies with annual sales of tens of millions of yuan, and the annual output values ​​of specialty mold villages like Qinglin, Dongjing and Hengshan are all over 100 million yuan. Large-scale professional manufacturers include: Ningbo Beilun Brilliant Mould Industrial Co., Ltd., Ningbo Che Lighting Electric Co., Ltd., Ningbo Xinda Mould Manufacturing Co., Ltd., Ningbo Xunhui Electric Co., Ltd., Ningbo Haozhi Machinery Mould Co., Ltd., Ningbo Hua朔 Die Machinery Co., Ltd., Ningbo Xinhai Mould Co., Ltd., Ningbo Cheng Shing Co., Ltd., etc.
Jiangsu casting mold manufacturers are mainly concentrated in Suzhou, Changzhou, Kunshan, where a large production of professional manufacturers have Changzhou Kang Lida Top Die Co., Ltd..
In addition, the output of casting molds in Jilin Province and Liaoning Province in the northeast, Hunan Province in the central region, and Sichuan Province and Chongqing City in the west are also numerous. For example: Kyoritsu Seiki (Dalian) Co., Ltd. is now a Japanese wholly-owned company wholly operated by the Chinese. The company's internal management is rigorous and its production efficiency is high. With the help of Japan's advanced molding technology, it is developing national brands.
In the above-mentioned areas, the most complete and smoothest supply of steel, electrode materials, hydraulic components, and molds related to the production of casting molds is the most concentrated, and mold form manufacturing, outsourcing mechanical processing, external electrode production, and heat treatment cooperation manufacturers are the most concentrated.
The national casting mold manufacturing enterprises can be roughly divided into the following categories:
The first category is the casting mold manufacturing factory. These enterprises serve the entire society and undertake various kinds of casting molds required by various industries. The equipment is advanced, the technology is superior, and the scale is relatively large. At present, it is the main supplier of commodity molds in China.
The second category is a mold shop or branch factory affiliated with a foundry company. Such enterprises can personally serve the enterprise, provide timely service, have clear technical requirements for the self-contained molds, and replicate the original imported foreign molds. They have the advantage of being near the water, and can basically meet the self-sufficiency of the molds of the enterprise. Needs, some of them also undertake a small number of tasks outside the enterprise, and sometimes also send some difficult and time-consuming molds to professional factories to produce. In recent years, many foundries no longer increase the investment in mold making equipment and reduce the scale, and instead rely mainly on mold repair and maintenance. Among the large-scale enterprises in this category are: Chongqing Xinjiang Xingao Mould Co., Ltd., Dalian Yaming Auto Parts Manufacturing Co., Ltd., Gao Yao Hongtu Mould Manufacturing Co., Ltd., Nanhai Wencan Casting Co., Ltd., and Chengdu Xingguang Foundry Industry Co., Ltd. , Shanghai Qiantong Automotive Accessories Co., Ltd., Shanghai Pilbong Non-ferrous Components Co., Ltd., etc.
Casting mold transformation and upgrading mold is a combination of technology-intensive and labor-intensive industries. China has excellent talents, mold clamping technology is high, and labor costs are low. Luo Baihui said that after entering the WTO, China's investment environment has been greatly improved, foreign investment can enjoy national treatment, there will be no problem of foreign exchange balance, export quotas, so the Chinese mold industry will have more Sino-foreign joint ventures and Foreign wholly-owned mold enterprises. At the same time, the outward shift of manufacturing production points in Japan, Singapore, and Taiwan and other countries and regions is irreversible. The more open mainland China is naturally the first choice, and mold companies are bound to follow suit. Luo Baihui, head of the International Mould, Hardware and Plastics Industry Suppliers Association, pointed out that in order to develop the foundry mold enterprises in China, it is necessary to change the mechanism, develop specialized production, increase market awareness, promote the adjustment of the industrial structure of the foundry mold industry, and actively promote industry management. Establish an industry management coordination network; strengthen the training of technical talents and strengthen one expertise; use CAD/CAM/CAE/CAPP technology extensively to improve the level of mold design and manufacturing; vigorously develop rapid tooling and rapid prototyping technologies and high-speed machining Technology, high-speed measurement technology, reverse engineering, and other new technologies, new processes, and new materials; improve the standardization of casting molds and expand the use of standard parts. Mould enterprises must constantly improve their own technical level and management capabilities in order to have a foothold in the domestic mold market, in order to gradually open up foreign mold market.
Foundry mold companies need to change mechanisms, develop specialized production, increase market awareness, and promote industrial restructuring of the foundry mold industry. In the past, under the condition of planned economy, large-scale enterprises had a mold branch (workshop) within the large-scale enterprise. The manufacturing capacity and technical strength were strong and accounted for a considerable proportion of the domestic mold production value. Except for a few standard parts purchased, most of the workload was By the mold factory to complete, resulting in a low degree of specialization and standardization. Coupled with the constraints of the enterprise management system, mold manufacturing cycle is long and can not meet the market requirements. In recent years, mold factories have generally increased investment in equipment, improved the level of technology and the ability to make molds, and the quality of molds has greatly improved. In Luo Baihui's view, the domestic production of small and medium sized molds can fully meet the needs of the domestic market. Large-scale, complex, and precise molds relying on imports have been greatly improved; medium- and low-grade molds are in excess of demand, and large-scale and high-demand castings are required. Mould imports are quite a few; the casting modulus of export is increasing year by year; the total amount of domestic commercial mold has exceeded half, and the self-produced mold no longer dominates.
During the 11th Five-Year Plan period, China's foundry mold industry has gradually integrated into the world trade integration. Through thorough reforms, the impact of the planned economy will be eliminated. To this end, the degree of commercialization of molds will also be greatly improved. The pace of transformation of state-owned enterprises will be accelerated, and the development of private and individual companies will cause major changes in the structure of the mold industry. . The socialization and specialization of the mold industry will be strengthened. This is an effective measure to resist the impact of joining the World Trade Organization. Some of the traditional mold shops in the company will be transformed into new economic entities that are independently accounted for, and most of them will be phased out. More mold companies will embark on the path of specialization and maintain their advantages in products of their own specialty. The special and refined way can survive and develop in the competition. In the past, those who did not have expertise projects, including all types of mold enterprises, caused the dispersion of equipment, talents, funds, etc. These enterprises will gradually become stronger in the projects with comparative advantage and be developed, and the non-expert projects will be eliminated. The standardization of molds will also be further promoted, and the standard parts manufacturing companies of molds will also develop rapidly.
During the period of the 12th Five-Year Plan period, it is necessary to continue to promote industry management, build an industry management coordination network, and establish a fair and reasonable mold mold price system. To further standardize the mold market, the market demand for quality is more stringent, and quality is the market.
The quality of modern moulding depends on physical factors, and the reproduction ability is strong. The overall level is easy to control. Modern modeling is performed in a parallel manner. The design and manufacturing are based on a common mathematical model. They can communicate in parallel through the public database under the guidance of the overall mold process plan, coordinate with each other, share information, reduce duplication of labor, and shorten the processing cycle.
To improve the design and manufacturing level of casting molds, mainly including: CAD/CAM/CAE/CAPP technology is widely used; integration of process and tooling design; improvement of the design and manufacturing level of large-scale, precision, complex, long-life molds; vigorous development of rapid mold making And rapid prototyping technology (RPM); develop high-speed processing technology, develop high-speed measurement technology and reverse engineering (RP); use high-quality mold materials, improve surface treatment technology; increase the standardization of casting molds and expand the use of standard parts.
Constantly introducing advanced manufacturing technology and advanced equipment, parts mapping, generally no longer use the rubbing method, the model method, and the use of three coordinate measuring instruments and laser scanners and other advanced measurement equipment and measurement technology, mapping parts are not only accurate and rapid, Moreover, the measured data and graphics can be directly input into the computer, and various documents can be created to display the three-dimensional model and two-dimensional graphics of the parts. In terms of design, due to the universal application of CAD, many companies and factories have already gotten rid of the board or are trying to get rid of the board. The promotion of three-dimensional modeling software not only provides guarantees for CNC programming and integration, but also can be used at design time. Perform assembly interference checks to ensure the design and process are reasonable. In terms of processing, the extensive use of CNC machine tools not only ensures the accuracy and quality of the casting mold parts, but also increases machining efficiency by using cutting speeds, high feed rates, and high machining quality as the main features. Times even ten times. Some large-scale and high-level foundry mold factories continue to emerge. Some hand-work workshops without technology, water-free equipment, and simple equipment have gradually been phased out. This has made our country's foundry mold industry a long-term development. Luo Baihui, head of the International Tooling & Hardware & Plastics Industry Suppliers Association, pointed out that under such circumstances, we should highlight the accuracy problems in the production of foundry molds, push the casting mold industry in China into a new stage of development, and give full play to castings. Mold industry plays an important role in the national economy. Advancing with the times will enable our country’s national economy to achieve rapid development, accelerate the realization of the four modernizations, and become an economic power and technological power.
Prospects for the development of casting molds In recent years, China's molds have grown at an average rate of more than 15%, which is more than double the average value of China's GDP. According to the “National Basic Situation of Mold Specialized Plants†compiled by the China Die and Mould Industry Association Management and Management Committee, casting molds account for approximately 5% of the total output value of various types of molds, and the annual growth rate is as high as 25%. Luo Baihui, head of the International Die & Metals and Plastics Industry Suppliers Association, believes that the high growth rate of the foundry mold industry is mainly due to the rapid development of China's automobile and motorcycle industries and the rapid growth in the production of casting molds. As we all know, the castings have a wide range of applications, and they cover almost all industrial fields. Among them, the castings of automobile parts are ranked first in terms of their number, varieties, strict requirements, high quality and non-ferrous metal materials. , The largest share of the entire foundry industry.
At present, China’s auto and motorcycle industry has entered a period of rapid growth, and its output has increased significantly for many years in a row, ranking first in the world, especially for cars that are closely associated with the foundry industry. The growth is fastest, and it is rapidly increasing for complex, large-scale, The demand for precision casting molds has thus served as an important support for the foundry industry - the casting mold industry has gained unprecedented opportunities for development. It can be predicted that in the next few years, the production of casting molds in China will still obtain strong thrust mainly from the domestic automobile industry.
Compared with countries such as Southeast Asia and the Middle East, China's molds have advantages in terms of technology, quality and price, and their export prospects are promising. While foreign-funded enterprises enter China, the return of molds and exports will also become an important part of China's mold exports. Luo Baihui said that because China's mold production costs are much lower than foreign countries, with the improvement of mold manufacturing technology and quality, not only can reduce the import of molds, but also may gradually open up the export market and export more molds to foreign countries. During the 12th Five-Year Plan period, mold imports will continue to maintain its growth momentum in the short term, and mold exports will have great development.
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Greenst Machinery Co., Ltd. , http://www.nbgreenstmachinery.com