Heat pump dryer extends Pinghu's shelf life

It is understood that Pinghu City, Zhejiang Province has abundant fig resources and the planting area is nearly 800 acres. Because figs are perishable and difficult to preserve, local professional cooperatives seek new ways to introduce heat pump-type fig dryers. By drying, the shelf life of fi…
Mine safety inspection

First, the wind speed measurement

(1) Determine the wind speed with a wind meter. Commonly used wind meters are cup type and wing type.

(2) The wind speed is measured by a pyroelectric anemometer and a pitot tube differential pressure gauge. The therm…
Discussion on the problem of gear hole in new lathe


Effect of Carbon Equivalent on Shrinkage Defects Under the premise of other chemical compositions, the shrinkage volume of carbon equivalent at 316 to 510 during wet casting was measured. For the test results. It can be seen that the higher the carbon equivalent, the smaller the shrinkage …