Abstract : This paper mainly introduces the general rules and methods for the selection of hot forging die for hammer forging and hot extrusion. At the same time, according to the problem of the low life of the related die, the corresponding process optimi…
1 Proposed issue
Blade Material: 9sicr
Slit Width(Min): 150mm
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On December 13, Beijing Automotive Holdings Co., Ltd. and the world's top 500 companies, the American Lear Corporation, signed a contract in Shanghai to establish Beijing Beiqi Lear Automotive Electronics Co., Ltd.
It is understood that the joint venture company is jointly in…
In the process of metal connection technology, on the one hand, the welding speed is required to be highly deformed and small, and on the other hand, it is required to have a very good weld bridging capability. However, the conventional single laser wel…
Model NO.: HSP-5
Condition: New
Note: 90% of the soybean varieties in the wild facing the disappearance of wild soybeans, containing rare infertility genes; cultivated black beans naturally resistant to leaf mosaic disease, has a natural disease-resistant genes; the weight of round 100 drums of large black beans u…
On December 16th, China Chemical Industry News “Agricultural Resources Daily†held a press conference in the Great Hall of the People to summarize the activities of the Chinese Agricultural Materials Quality Miles-2007 Agricultural Agricultural Science and Technology Branch and Fam…
Henan Province Luoyang China Silicon High-tech Co., Ltd. developed a major science and technology project in Henan Province - 24 pairs of rods of energy-saving polysilicon reduction furnace complete sets of devices recently passed the expert appraisal. An appraisal committee composed of academ…
At home gas pipeline, we can see one such device - self-closing valve. Self-closing valve is in abnormal conditions to stop the gas output, automatically shut down the valve. So the public in the process of using natural gas, self-closing valve with a daily switch do not turn off the fire when …