Product Details
We provide turned CNC machining Hydraulic cylinder parts CNC machining parts for Stainless steel CNC turning parts.
As the main components of hydraulic cylinder, mining monomer prop, hydraulic support, gun barrel and other products, the processing quality of cylinder directly affects the life and reliability of the whole product. The requirements of cylinder barrel processing are high, the roughness of its inner surface is Ra0.4 ~ 0.8 & um, and the requirements of coaxiality and wear resistance are strict. The basic feature of cylinder barrel is deep hole processing, which has always troubled the processing personnel.
Due to the residual compressive stress in the surface layer, the rolling process helps to close the surface micro cracks and hinders the propagation of erosion. Therefore, the corrosion resistance of the surface can be improved, and the generation or expansion of fatigue cracks can be delayed, so as to improve the fatigue strength of cylinder barrel. Through rolling forming, a layer of cold work hardening layer is formed on the rolling surface, which reduces the elastic and plastic deformation of the contact surface of the grinding pair, thus improving the wear resistance of the cylinder inner wall and avoiding the burn caused by grinding. After rolling, the reduction of surface roughness can improve the matching properties.
Oil cylinder is the most important part of construction machinery. The traditional processing methods are broaching cylinder block, fine boring cylinder block and grinding cylinder block. The rolling method is as follows: broaching cylinder block, fine boring cylinder block and rolling cylinder block. The process is divided into three parts, but the time comparison: grinding the cylinder block for 1 meter is about 1-2 days, and rolling cylinder body is about 10-30 minutes. Investment comparison: grinder or quilting mill (tens of thousands - millions), rolling knife (10 - tens of thousands). After rolling, the surface roughness of the hole decreases from ra3.2 ~ 6.3um before rolling to Ra0.4 ~ 0.8 & um, the surface hardness of the hole increases by about 30%, and the fatigue strength of the inner surface of the cylinder increases by 25%. If only considering the influence of cylinder barrel, the service life of cylinder can be increased by 2 ~ 3 times, and the efficiency of boring and rolling process is about 3 times higher than that of grinding process. The above data show that the rolling process is efficient and can greatly improve the surface quality of cylinder.
Good quality accessories are also very important. We can guarantee the quality of our products.
http://www.afimetalparts.com/
Company Profile
