Commoness conveyor Drive Belt use rubber in various components include cover, cushion gum, rubber cloth wipe glue, cloth layers stick glue.
1, plastic cover
When using the material impact, abrasion and microbial corrosion, as well as a variety of aging. Therefore, request cover rubber has good tensile strength (18 mpa or greater) and abrasion resistance (abrasion quantity 0.8 cm3/1.61 Km or less), ageing resistance, resistance to erosion. In addition to requirements with good process properties such as viscosity, formula is as follows: net gum rubber technology is given priority to with natural rubber or with just the right amount of styrene butadiene rubber, adhesive content control in 50% ~ 55%. Nitrile butadiene rubber (NBR with good mechanical properties, mineral oil, hot water, ozone resistance, a, b, c, butane - 40 ~ 120 for O ring and oil seal cup general from general hydraulic launch system for static seal or dynamic seal. In natural rubber formula, the dosage of sulfur 2.5 quality around; In styrene-butadiene rubber formula, the quality of sulfur amount was 1.5 ~ 2.0. Accelerator M, DM, and commonly used, accelerator CZ, accelerator NOBS, etc after effect sex is suitable for containing rubber styrene-butadiene rubber. Reinforcing agent can choose high wear-resistant carbon black, Chinese super wear-resisting carbon black, etc., dosage of 40 ~ 50 quality copies. Softeners often choose the varieties of oil, heavy oil, pine tar and petroleum resin, coumarone resin. 2, buffer rubber
Cushion rubber between the adhesive and the core layer, can increase the bonding strength, and can absorb and disperse the impact of the conveyed material, a buffer role. Rubber has good adhesiveness (the adhesion of rubber and cloth acuity 3.15 N/mm), good elasticity, less heat production and heat dissipation, process performance is good. Commonly used rubber and butadiene rubber and natural rubber, rubber content is 50% ~ 55%. With appropriate use of low sulfur vulcanization system, in order to improve the adhesion between rubber and cloth layer. Accelerator M, DM, TMTD and system. Semi reinforcing carbon black and carbon black used high wear-resisting, dosage shoulds not be too much, often around 10 quality copy. Softener to choose good varieties increase viscosity, such as pine tar, solid coumarone, etc. Increases and the amount of petroleum resin, coumarone resin can reduce otherwise cloth layer adhesion.
Conveyor belt features of several kinds of adhesive used in:
Nitrile butadiene rubber (NBR with good mechanical properties, mineral oil, hot water, ozone resistance, a, b, c, butane - 40 ~ 120 for O ring and oil seal cup general from general hydraulic launch system for static seal or dynamic seal.
Ternary 3-20 EPDM with high temperature, resistant to steam, weak acid, does not contain mineral oil, brake oil - 40 ~ 160 used for high temperature gas seal can reach (200 degrees)
Fluorine rubber (FKM heat, acid and alkali resistance, resistance to chemicals, all kinds of mineral oil, extrusion resistant, anti-aging - 40 ~ 220 commonly used in adverse environment, such as metallurgical industry, large-scale engineering machinery static seal.
Polyurethane TPU is a non-toxic, oil resistant, resistant to hydrolysis high wear-resisting material. - 40 ~ 100 is used in the oil cylinder shaft and hole with GY type sealing ring and FS and dusty, etc.
POM POM oil resistance, good wear resistance, high compressive strength, impact resistant performance is good, have good self-lubrication, size stability. - 30 ~ 140 production oriented slip ring, ring, ring, etc
Ptfe PTEF good chemical stability, high and low temperature resistance and various medium, low friction coefficient, self-lubrication. - 260 ~ 260 commonly used on mechanical seal materials, production wear ring and guide ring and used in metallurgical, chemical, engineering machinery, etc.
Nylon MC nylon 1010, nylon 66 oil type casting nylon chemical performance and mechanical performance is good, can replace part of metal mechanical products. - 10-200 used in machinery, petroleum, chemical, textile, printing and dyeing, paper making, iron and steel industry.
Silicone rubber MVQ heat resistance, cold resistance, small compression, deformation, but the low mechanical strength. - 60-230 is suitable for the high and low temperature is not high speed rotating seal and all kinds of food machinery.
PPS a high-performance engineering plastics PPS,Rubber Drive Belts good insulation and high strength - 40 ~ 260 used in oil, oil well measuring, high power electronic insulation parts.
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Posted 06:19 AM Tuesday, November 29, 2016 [
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