What are the uses of red pill powder?

Mainly used as oxidants and catalysts for fireworks; Used as anti rust pigment in the paint industry; In the glass industry, improving the optical and radiation resistance properties of glass; In the enamel industry, it is used as a flux to reduce the melting point, surface tension, and viscosity of glaze materials, and improve the glossiness of products; In general mold manufacturing, it is used to check the gap between the mating surfaces. In the electronics industry, it is used for wireless components, batteries, and so on.

The fitter uses red lead powder and engine oil as a developer for scraping: Mix the red lead powder and engine oil in a certain proportion, making it thicker for rough scraping and thinner for fine scraping. Evenly apply the pre applied developer on the surfaces of two metal flat plates (one is a standard flat plate and the other is a spare scraping flat plate) after mechanical processing. Then, rub the two surfaces against each other and separate the flat plates. It can be seen that the part of the spare scraping flat plate surface that has been rubbed off by the developer will shine, which should be the high point to be removed. Use a scraper to scrape off all the high points. Repeat the above actions until the number of points on the surface of the scraping plate meets the specified requirements.