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Mold for customized rubber hydraulic seal
2016-08-08 16:45:47
 

Mold for customized rubber hydraulic seal
A good hydraulic sealing products need to mold, and good tools and forging, die before are generally according to the customer provide hydraulic sealing a 2D or 3D dimensional drawing die before the preparation work, if client fails to provide drawings, can provide hydraulic seals physical samples, we according to the sample to help you design drawings, to you to confirm that.
Mold is master mold according to the programming design, completed in the company of CNC machine tools, and some degree of difficulty high a grandpa seal products need to spark discharge of copper to die. The production of technical content is relatively high, time is relative to longer.
Mold performance of hydraulic seals:
a, high temperature performance: when the mold temperature is higher, the hardness and strength decreased, leading to early die wear or plastic deformation and failure. Therefore, the mold material should have higher resistance to tempering stability to ensure the mold under the operating temperature, with higher hardness and strength.
b, the resistance to thermal fatigue performance: some molds in working process in the repeated heating and cooling of the state, the cavity surface tension and pressure varying stress, causing cracking and peeling off the surface, increases the friction force, hinder plastic deformation, reducing the dimensional accuracy, resulting in die failure. Thermal fatigue is hot as one of the main forms of die failure and help this kind of mold should have higher resistance to thermal fatigue performance.
c, wear resistance: material wear resistance is the most basic mold, one of the most important performance.
Hardness is the major factor affecting the wear resistance. Under normal circumstances, higher hardness of the mold parts, wear volume is small, the better wear resistance. In addition, wear resistance also with kinds of carbide material, number, morphology, size and distribution of.
d, the strength and toughness: die working conditions are very bad, some are often subjected to impact load, which leads to brittle fracture. In order to prevent mould parts in work when all of a sudden brittle fracture, the mold to have higher strength and toughness. The toughness of mould depends on the materials of carbon content, grain size and microstructure of state.
e, fatigue and fracture performance: the working process of the mould, under cyclic stress of the long-term effect, often leads to fatigue fracture. Its form a small energy repeated impact fatigue fracture and tensile fatigue fracture contact fatigue fracture and bending fatigue fracture.

The fatigue fracture behavior of the mold mainly depends on its strength, toughness, hardness, and the content of the inclusions in the material.
Mold manufacturing generally after forging, machining, heat treatment, such as several processes. In order to ensure the quality of mould manufacturing, reduce the production cost, the material should be with good can be forged, machinability, hardenability and hardenability and grinding; with little oxygen, decarbonization and quenching deformation cracking tendency.
1, malleable has a lower hot forging deformation resistance, good plasticity, forging temperature range is wide, and the tendency of cold cracking and carbide precipitation is low.
2, the process of annealing temperature range is wide, the annealing hardness is low and the fluctuation range is small, the rate of the ball is high.
3, cutting processing of large amount of cutting, low tool loss, low processing surface roughness.
4, oxidation, decarburization sensitivity to high temperature heating antioxidant arms can be good, decarbonization speed is slow, the heating medium insensitive to have a tendency to pitting small.
5, hardened after quenching with uniform and high surface hardness.
6, the hardened layer can be obtained after the quenching, and the quenching medium can be hardened.
7, the quenching distortion and cracking tendency are small, the shape is warped, the distortion is slight, the distortion tendency is low, the conventional quenching cracking sensitivity is low, and it is not sensitive to the quenching temperature and the shape of the workpiece.
Singwax rubber production of rubber products, silicone rubber products are made of high-quality materials, environmental protection, non-toxic, hardness

can be according to the customers for the different use of the environment and performance debugging of hardness.


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