Depends on use of the environment , heat , cold, oil and acid conveyor face thickness not less than 4.5mm, the thickness of the upper and lower plastic cover should be a multiple of 1.5 . Order indicates the width of conveyor (mm), fabric layers, covered with thick plastic (mm) + under thick plastic cover (mm), length , strong canvas belt indicate model ; heat, cold , oil and acid transport should be marked with the text . Endless conveyor belt and tread belt should be described in detail. If NN200 conveyor , bandwidth 800,6 layer canvas , glue under the rubber thickness of 1.5mm thickness of 4.5mm custom 100 meters . Expressed as NN200-B800 × 64.5 +1.5100 m .

Conveyor Features:

General conveyor belt used in various parts of the plastic material including plastic cover , cushion gum eraser fabric layers , fabric layer gum paste of four.

1 , plastic cover

Use of materials subject to 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.