What is the principle of copper-based oil-containing motor?

All kinds of metals are ground into powder and mixed according to a certain proportion, then molded and sintered into a shape with certain pores, and finally soaked in lubricating oil in a vacuum environment.

After the friction between the shaft and the bearing heats up, the lubricating oil will precipitate from the bearing and form an oil film, thus playing the role of continuous operation of the rotor shaft in this process.

The advantage is that it is cheap.

Ask for the name of a movie! Japanese film

Is the MECOFU medical sodium hyaluronate patch harmful to the skin? How to use it? Are there any side effects?

How long does it take from Meizhou Triangle Expressway exit to wanda plaza?

Which hospital in Shandong has good lip plastic surgery?

What is the final fermentation temperature when making bread dough?

Do boys prefer natural faces or plastic faces?

How to reduce face width, natural methods, how to reduce face width, massage techniques

Contact information of Dr. Li Yong, Department of Andrology, the First Affiliated Hospital of Guangzhou Sun Yat-sen University

Is Bibai the species name? Or does it refer to a type of cypress?

Taizhou plastic surgery hospital