1. Carbonization, hardening depth 1.2mm ~ 1.6mm should be an ideal state, quenching will produce thermal stress and then cause the material to produce a certain amount of deformation, but by the technical means can eliminate these deformation, because the principle of quenching technology In the processed gears and racks, although it is a regular level, it is not in the same straight line. If the quenching is done too deep, the most surface layer will have a certain degree of carbonization. Several imported brands of racks, at this point, have done more successful! Of course, there are many techniques related to hardening, such as carburizing, nitriding, etc., but these will cause the entire surface of the rack and gear to harden, which is not conducive to subsequent secondary processing. Such as drilling and so on!
2. Wear, heat and traction generated by the traction mechanism during the high-speed transmission of gears and racks will be absorbed by the hardened layer. The deeper the hardened layer, the less easily it will be quickly transferred to the soft surface, that is, even if it is The surface hardness and the hardened layer of the same material are different, and the time and temperature at which high temperature friction rises are also different, and the temperature rise directly results in a change in the molecular structure of the material itself, which in turn causes the material to increase in temperature rise. Continue to wear and wear. The deeper the hardened layer, the better the performance at this point! Therefore, the wear time will be delayed and the amount of wear will be even smaller!
3, steel, the same principle, the deeper the hardened layer, the stronger the nature of the nuclear material itself, in the case of mechanical moment increase, it is not easy to be destroyed, we can imagine two pieces of the same hardness and different thickness Put together the steel plate to do the same destructive action, which piece will be more easily destroyed? In the same way, we are now increasingly strict with the structural requirements of mechanical beds. From ordinary steel welding to thick plate welding and castings, in fact, they are all intended to enhance their own steel properties, and to reduce the risk of mechanical failure if steel is insufficient. The secondary damage to the machine or the loss of people and property caused by the failure, and the resonance generated during mechanical movement are reduced, so as to ensure that the quality of the machined product becomes higher and higher.
2. Wear, heat and traction generated by the traction mechanism during the high-speed transmission of gears and racks will be absorbed by the hardened layer. The deeper the hardened layer, the less easily it will be quickly transferred to the soft surface, that is, even if it is The surface hardness and the hardened layer of the same material are different, and the time and temperature at which high temperature friction rises are also different, and the temperature rise directly results in a change in the molecular structure of the material itself, which in turn causes the material to increase in temperature rise. Continue to wear and wear. The deeper the hardened layer, the better the performance at this point! Therefore, the wear time will be delayed and the amount of wear will be even smaller!
3, steel, the same principle, the deeper the hardened layer, the stronger the nature of the nuclear material itself, in the case of mechanical moment increase, it is not easy to be destroyed, we can imagine two pieces of the same hardness and different thickness Put together the steel plate to do the same destructive action, which piece will be more easily destroyed? In the same way, we are now increasingly strict with the structural requirements of mechanical beds. From ordinary steel welding to thick plate welding and castings, in fact, they are all intended to enhance their own steel properties, and to reduce the risk of mechanical failure if steel is insufficient. The secondary damage to the machine or the loss of people and property caused by the failure, and the resonance generated during mechanical movement are reduced, so as to ensure that the quality of the machined product becomes higher and higher.
Geo-membrane is produced by a method of three layer co-extrusion model. The raw material is processed at 200°C by fusing and coextrusion, whose basic properties are kept during the producing process.
Features:
1) Can bear chemical erosion.
2) A wider using temperature range and a longer using life.
Application:
It can be widely used in areas of garbage burying, waste disposal, tail minerals storage and underground construction projects.
Hdpe Geomembrane, Ldpe Geomembrane, Composite Geomembrane
Feicheng Lianyi Engineering Plastics Co., Ltd , https://www.lianyigeosynthetics.com