Sleeve small knowledge

First, according to the use of driving device classification:

1. Pneumatic sleeve (also known as pneumatic sleeve) 2. Manual sleeve 3. Electric sleeve: a sleeve with an electric wrench as the driving force.

2. classified according to material

1. Chrome-Molybdenum Steel is an alloy of chromium (Cr), molybdenum (Mo), iron (Fe) and carbon (C). It has good high-temperature processing performance, beautiful appearance after processing, deep quenching, and good impact absorption performance. Therefore, it is often used to manufacture pneumatic tools and large manual tools in the industry.

2, chrome vanadium steel (Chrome-Vanadium Steel), chrome vanadium steel is the addition of chromium vanadium alloy element alloy tool steel, mainly used in hand tools.

3, 45# carbon steel, that is, 45# steel, carbon content of about 0.45, due to good processing performance and multi-directional processing technology and become commonly used in steel processing materials. Cr-Mo of the above materials (chromium molybdenum steel) is the material of the sleeve.