What is the powder of the car knife welding
Borax, borax, also called borax, which is a chemical composition, is a sodium tetraborate containing 10 water molecules. Its crystal is tabular or columnar, and the crystals are assembled together to form clusters of crystals, granular, porous soil, etc., and the color is white with gray borax - the original Or light yellow, blue, green, etc., with glass luster. CAS: 1303-96-4 formula: Na2B4O7. 10 h2o molecular mass: 381.37 the boiling point: 1575 ℃, melting point 320 ℃ Chinese name: borax sodium tetraborate sand (water) ten month Yellow sand borax borax powder (medical) industry
Called flux. Flux (flux) : a chemical that helps and facilitates welding during welding process and has protective effect and prevents oxidation. The flux can be divided into solids, liquids and gases. "Main auxiliary heat transfer", "removal of oxide", "reducing the welding material surface tension", "remove welding material surface oil pollution, increase welding area", "to prevent oxidation" and so on several aspects, more critical role in these aspects, there are two is: "to remove the oxide" and "reduce the welding material surface tension". role The main active ingredient in the flux is rosin, which is broken down by tin at about 260 degrees Celsius, so the temperature of the tin slot is not too high. The flux is a chemical that promotes welding. In soldering tin, it is an indispensable auxiliary material which is extremely important.
Which powder is called a flux: it helps and facilitates the welding process in the process of welding, while also has the protective effect and the chemical that blocks oxidation. The flux can be divided into solids, liquids and gases. "Main auxiliary heat transfer", "removal of oxide", "reducing the welding material surface tension", "remove welding material surface oil pollution, increase welding area", "to prevent oxidation" and so on several aspects, more critical role in these aspects, there are two is: "to remove the oxide" and "reduce the welding material surface tension".
