Recently, a motor of Zhonghai Industrial City undertook a YX5500-4 /1270 5500KW motor rotor transformation task. After inspection and analysis, the rotor of the motor is broken due to materials, frequent starting and the like. After passing a technical conference, the company decided to determine the following options: the aluminum strip was transformed into a copper strip, the end rings were replaced, and the cage strip and the end ring were silver welded.
Due to the different materials of aluminum and copper, the density and characteristics of the materials are different, the dimensions of the cages and end rings must be different. The city's motor technicians redesign the copper bars and end rings under the premise of ensuring the strength through accurate measurement and strict calculation. Dimensions; wedges are arranged in the slots, and the copper bars and end rings are connected by silver soldering. Construction workers and technicians worked overtime to speed up the progress under the premise of ensuring quality, which was successfully completed this week.
A coffee grinder with a cone-knife grinder places a conical knife disk at the bottom of the machine, and then cooperates with the outer ring knife disk for grinding. The coffee powder produced in this way will be closer to granular, and at the same time, the water absorption path of the coffee particles will become longer, and it will take more time for the inside to contact the water, which will result in the coffee powder being released within the first time. The soluble substances are less, and the concentration will not be too high in a short time.
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Zhongshan Dippers Electric Co., Ltd. , https://www.cndippers.com