Stearic acid, namely octadecanoic acid, has a simple structural formula: CH3(CH2)16COOH, which is produced by the crystallization of fats and oils and is mainly used for the production of stearates. Each gram is dissolved in 21ml ethanol, 5m...

What are the production processes of traditional shoes(1) Seam craftThis is the traditional processing technology of 5261 Chinese shoemakers and the 4102 manufacturing technology of high-end shoes. 16...

Meanwhile, very thin foils/films can grow into different types depending on surface structures. As such, applications can vary. Great efforts had been dedicated to the synthesis of single crystalline metal foils as they have many important...

Wear of the bearings can be repaired in this way. The solution is: need to re-study the use conditions or re-select the bearing, observe the clearance and check the machining precision between the s...

The shaft voltage generated during the operation of the motor is a serious equipment hazard, and the shaft current formed by the shaft voltage seriously threatens the safe operation of the equipment.S...

First, when the bearing is removed for inspection, first use photography and other methods to record the appearance. In addition, confirm the amount of remaining lubricant and sample the lubricant bef...

Stable, well-formed microstructures The Empa team led by Shanyu Zhao, Gilberto Siqueira, Wim Malfait and Matthias Koebel have now succeeded in producing stable, well-shaped microstructures from silica aerogel by using a 3D printer. The prin...

In the process of using bearings , failures may occur due to various reasons, resulting in the equipment cannot be used frequently. So what is the cause of the bearings problem? Here are six common failure situations encountered by bearings...