ZhongBo Industry and Mining Machinery Co.,Ltd  Main Products:
   
    General, heat (temperature), acid, oil, cold, abrasion, flame and other general performance of different cotton canvas (CC), Nylon (NN), polyester (EP) conveyor belts and other large angle flat file sideband tread belt, other special-shaped conveyor belt. And a roller, roller, frame, electric roller conveyors such ancillary products. Drive pulley; bend pulley; electric drum; magnetic pulley (magnetic drum); Care roll; stent; lug; tensioner; sweepers; couplings TD75 transportation machinery and ancillary products more than 200 kinds.

Below me to tell you about the plastic cover what are the characteristics of the plastic material, which gives the belt a variety of different functions.

1, Cover rubber materials used by the impact, abrasion and microbial corrosion, and various aging effects. Therefore, the required plastic cover has good tensile strength (≥ 18Mpa) and wear resistance (wear volume ≤ 0.8cm3/1.61Km), anti-aging, anti-biological erosion. Also required to have good technological properties such as viscosity, formulation design points are as follows: Rubber Technology Network of raw rubber or natural rubber-based and use the right amount of styrene-butadiene rubber. 2, cushion rubber cushion rubber and plastic cover with a core layer in between, can increase the adhesion between the two, and transport of materials to absorb and disperse impact force dampening effect. Requirements compound has good adhesion (plastic and cloth adhesion ≥ 3.15N/mm), elasticity, heat a small, good heat dissipation, process performance. 3, eraser Eraser's main role is to canvas with a core layer bonded into a whole. Requirements for core material with good adhesion properties (adhesion between the fabric and the fabric strength of not less than 4.5N/mm), fatigue (fabric layer flex frequency ≥ 2.5 million times / full stripping), and sufficient plasticity (plasticity 0.5 to 0.6) and anti-scorch and other process performance. 4, raw natural rubber-based rubber and 20 to 30 parts by mass of a styrene-butadiene rubber containing about 50% gum. With the general sulfur vulcanization system, accelerator system. Accelerator generally use M and DM and use, or add a small amount of TMTD, to speed up the cure rate, but pay attention to prevent the rubber scorch. Should be used in semi-reinforcing carbon black carbon black or other soft black, the amount of 10 parts by mass. Mixed with styrene-butadiene rubber eraser should be increased Coumarone amount of resin and petroleum resin, otherwise it will reduce the fabric layer adhesion.