Year1
- 类型：
- 煤矿
- 型号：
- 齐全
- 规格：
- 标准
The buffer strips developed by Shandong Shengmei Mining Machinery Co., Ltd. are available in two types: flame retardant and non-flame retardant. The buffer strips from top to bottom are: polymer polyester resistant Grinding plates, buffer rubber, metal parts, special bolts. Polyurethane wear-resistant polymer plate, plate thickness... The width of the buffer strip is , and the thickness is . The buffer strip is the main accessory of the buffer bed. The current standard length of the buffer strip is: meter, meter, meter, meter, meter, meter, meter. The length of buffer strips with special specifications can be produced according to actual design requirements. The buffer strips from top to bottom are: polymer wear-resistant plate, buffer rubber, metal parts, and special bolts.
Composition principle of buffer strip
Surface structure
Domestic manufacturers choose materials that are not in direct contact with the conveyor belt. They mainly use three methods: ultra-high molecular weight polyethylene board, polyurethane, and ceramics. Ceramics have good wear resistance, but the friction coefficient is extremely high, which can easily cause scratches, heat, and smoke on the conveyor belt.
It is extremely harmful. Ceramic sheets are suitable for lagging of conveyor belt drive rollers in muddy environments. The manufacturers who choose this surface material basically do not understand the use environment and conditions of the buffer strips and make them blindly. .
Polyurethane has good bonding performance and requires low bonding technology. However, the material is easy to hydrolyze and has poor impact resistance. It is still prone to delamination and delamination after long-term use. The friction coefficient of ultra-high molecular weight polyethylene has excellent self-lubricating properties, which facilitates the passage of conveyor belts. It is very suitable for the surface material of buffer strips under harsh working conditions. However, it has high requirements on the manufacturer's process and it is difficult to bond with rubber without special treatment.
Rubber elastomer
When the buffer strip receives an impact, it mainly uses the elastic material to play a good buffering effect through its own physical elasticity. Therefore, the rubber elasticity must meet certain conditions. Internationally, the buffer strip is used The elasticity of rubber is about Shore hardness, and it has certain tear resistance, tensile strength, elongation at break, and the bonding strength between rubber and metal profiles are also criteria for assessment. Therefore, when selecting manufacturers, we choose manufacturers with inspection and experimental equipment capabilities. Through comparative experiments with domestic manufacturers, we found that some companies advertised better performance indicators, but the most basic rubber hardness was not reached. After testing, The hardness of some manufacturers is about 100%, and this hardness cannot buffer the material at all.
Bonding Technology
How to bond the three materials with different properties together is one of the difficulties that troubles manufacturers. Currently, two bonding technologies are mainly used in China, thermal vulcanization bonding technology and Condition bonding, but condition bonding technology cannot fundamentally solve the problem. The bonding layer will tear during long-term use, so thermal vulcanization technology is the key to solving the problem.
Metal frame
Whether internationally or domestically, the ways of fixing the bed frame without buffer strips are roughly divided into two types, one is steel hooks, and the other is aluminum alloy, which is more mainstream in China. Attaching rack hook.
Buffer bar sales hotline:
Online:
Contact person: Liu Yanyan
Shandong Shengmei Mining Machinery Co., Ltd.
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