General purpose wire rope conveyor belts are mainly used for long-distance transportation, roadway transportation, ship loader, inclined transportation, etc. The covering rubber has high requirements for rubber strength, wear resistance, and impact resistance. Generally, natural rubber is used as the main raw material. . The main raw materials of reclaimed latex rubber are waste natural rubber, waste natural rubber products, etc., which retain the basic performance characteristics of natural rubber, and can replace a certain proportion of natural rubber to prepare general-purpose steel cord conveyor belt covering rubber, effectively reducing raw material costs.
1. Reference formula for covering rubber of pure natural rubber steel wire rope conveyor belt
100 parts of natural rubber, 2.5 parts of sulfur, 5 parts of zinc oxide, 3.5 parts of stearic acid, 1.6 parts of accelerator, 1 part of paraffin, 6 parts of pine tar, 4 parts of engine oil, 2 parts of antioxidants, 48 parts of carbon black; Total: 173.6 copies.
2. Reference formula for covering rubber for steel wire rope conveyor belt containing reclaimed rubber
50 parts of natural rubber, 50 parts of reclaimed latex rubber, 5 parts of zinc oxide, 3.5 parts of stearic acid, 1.6 parts of antioxidants, 0.8 parts of paraffin wax, 50 parts of carbon black, 10 parts of rubber oil, 1.4 parts of accelerators, 2.2 parts of sulfur; Total: 174.5 copies.
3. Reclaimed rubber/natural rubber and using rubber to prepare conveyor belt covering rubber skills
(1) Raw material selection: When selecting latex reclaimed rubber for general-purpose steel cord conveyor belts, it is recommended to use black latex reclaimed rubber. Generally, the price of black latex reclaimed rubber with the same index is lower than that of white latex reclaimed rubber, which helps to further reduce the cost of 2YLYY419 raw materials. In actual production, rubber product manufacturers can also use styrene-butadiene rubber in natural rubber/latex reclaimed rubber in an appropriate amount to further improve the wear resistance of the steel wire conveyor belt covering rubber.
(2) Formula adjustment: When using natural rubber/latex reclaimed rubber and using rubber to produce steel wire rope conveyor belt cover rubber, choose sulfur vulcanization system. The vulcanized rubber has good dynamic mechanical properties, high tensile strength, wear resistance, and crack resistance; use in conjunction Accelerator M, Accelerator DM, appropriately increasing the amount of Accelerator DM can prolong the scorch time. Anti-aging agent A, anti-aging agent D and paraffin wax are used together in the anti-aging system to delay the aging time of rubber products.
When using reclaimed latex rubber in the formulation of natural rubber steel wire rope conveyor belts to reduce costs, you must choose the appropriate reclaimed latex rubber according to actual needs, and further optimize product quality and reduce more raw material costs through the adjustment of the formula; later editors have the opportunity Continue to share with you the application of reclaimed latex rubber in each layer of steel wire rope conveyor belt.
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