Control and elimination <br> <br> 6 corrosion Obviously, using water-soluble cutting fluid, users will shun the machine maintenance and management more efforts to control corrosion, or even substantially eliminate corrosion.
In order to…
5 Conclusions (1) Casting process CAD According to the actual needs of the factory, the casting process parameter library is established. Combining the experience and using the parameterized drawing book mechanism to establish the inductive riser system library, the core he…
First, rolling bearing
1. The bearing and the shaft are matched by the base hole, and the bearing and the outer casing are made by the base shaft. The values ​​of bearing dimensional tolerance and rotation accuracy are in accordance with GB 307-84. …
From November 28 to 29, 2007, the third executive council of the fourth council of the Chinese Occupational Safety and Health Association and the 2007 academic annual meeting was held in Ha…
<br> <br> advantages compared with foreign products, domestic products and foreign products the difference in the structure is not large, the new technology uses almost the same, the biggest difference is the speed of the core transmission parts, precision and r…
The misunderstandings of the understanding of soft body armor are now en…
Lens
The lens is a structure that gathers light so that the film can obtain a clear image. Early lenses were composed of a single convex lens. Because of poor resolution, ch…
The end of the year is approaching, and the annual incidence of theft is high. In recent days, burglary has become a major illness for everyone.
＞＞＞ Case 1
The window was not closed before going to bed
Narrator: Xiaoxi (Netizen) …