The mechanical chain chain coupling has a simple structure (composed of four pieces), convenient assembly and disassembly, no need to move the connected two shafts during disassembly, compact size, light weight, certain compensation capability, low installation accuracy requirements, and reliable operation , Longer life, lower cost and other advantages. It can be used for shaft transmission of textile, agricultural machinery, lifting and transportation, engineering, mining, light industry, chemical industry and other machinery. It is suitable for high temperature, humidity and dusty working environment, not suitable for high speed, severe impact load and transmission of axial force. The chain coupling should work under the conditions of good lubrication and protective cover. Basic functions: tensile performance, tensile strength and deformation rate, tensile strength, tear resistance, heat seal strength performance, roller peel test, 90 degree peel, rope tensile strength, trouser tear strength, 180 Different tests such as high peeling, compression test, bending test, shear test, burst test, etc. can be completed. According to the different needs of customers, different fixtures, wide specimen fixtures, Japanese fixtures, British fixtures, etc. can be installed. National standards. When processing ultra-high molecular weight polyethylene (UHMW-PE), when the material is extruded from the die, it shrinks to a certain extent due to elastic recovery, and there is almost no sag. Therefore, it is a hollow container, especially a large container, such as Blow molding of fuel tanks and vats created favorable conditions. Ultra-high molecular weight polyethylene (UHMW-PE) blow molding can also lead to a high-performance film with balanced vertical and horizontal strength, thus solving the long-standing problem of inconsistent strength in the vertical and horizontal directions of HDPE film, which is likely to cause longitudinal damage. The outstanding features of chain rigging are wear resistance, high temperature resistance, low ductility, and no elongation after stress. It has a long service life and is easy to bend, suitable for large-scale and frequent use occasions. Flexible multi-limbs and multiple combinations can improve work efficiency and reduce costs.