The wire ring is a part of the tire bead. It is a rigid ring made of rubber-coated steel wire arranged in a predetermined shape. It can provide the necessary strength and rigidity for the bead, so that the tire is firmly fixed on the rim to ensure driving safety. . The wire ring glue is generally made of natural rubber and used in combination with an appropriate amount of butadiene rubber. It is processed with the cooperation of various compounding agents. Nowadays, in order to reduce the production cost, rubber tire manufacturers begin to use recycled rubber in the wire ring rubber. So what is the difference between a rubber ring rubber formula containing reclaimed rubber and a pure raw rubber formula?
1. Natural rubber and butadiene rubber are used together to produce steel wire ring glue.
80 parts of natural rubber, 20 parts of butadiene rubber, 10 parts of zinc oxide, 1 part of stearic acid, 3 parts of cobalt naphthenate, 70 parts of semi-reinforcing furnace black, 100 parts of clay, 3 parts of pine tar, 3 parts of asphalt, 8 parts of rust red, 2 parts of antioxidant RD, 0.9 parts of accelerator NOBS, and 7 parts of sulfur; total: 307.9 parts.
2. Natural rubber and reclaimed rubber are used together to produce steel wire ring glue.
100 parts of natural rubber, 200 parts of recycled rubber, 24 parts of zinc oxide, 5 parts of stearic acid, 93 parts of semi-reinforcing furnace black, 170 parts of clay, 49 parts of light calcium, 10 parts of pine tar, 12 parts of asphalt, rust red 17 Parts, 6 parts of lead oxide, 3.5 parts of antioxidant D, 2 parts of accelerator M, 1.35 parts of accelerator DM, 0.15 parts of accelerator TMTD, 17 parts of sulfur; total: 710 parts.
3. Advantages of production formula of reel-containing steel wire ring
The traditional tire wire ring rubber is made of the main raw material of natural rubber and the right amount of butadiene rubber. The price of natural rubber and butadiene rubber on the market is quite high; the recycled rubber is the product of the processing of waste rubber products. The tread rubber reclaimed rubber produced by the surface rubber powder is high in rubber content, wear-resistant and flex-resistant. It has good compatibility with natural rubber. The price is much lower than that of natural rubber and butadiene rubber. It can be used together with natural rubber to produce steel wire. The ring rubber replaces the butadiene rubber, which not only ensures the comprehensive performance of the wire ring rubber, but also reduces the raw material cost and power consumption during the production process.
4. Precautions for using recycled rubber in the wire ring rubber
Tire wire ring rubber is not particularly high in physical and mechanical properties of the rubber used. It can be used in a large amount of recycled rubber to reduce production costs. However, due to the essential difference between the basic components and performance characteristics of reclaimed rubber and natural rubber and butadiene rubber, When using reclaimed rubber in the wire loop rubber, it is necessary to adjust the production formula of the wire ring rubber in time, especially the vulcanization system in the formulation. When the sulfur rubber is used as the vulcanizing agent in the refining rubber ring rubber, the accelerators M, DM and TMTD can be used together to improve the vulcanization efficiency while improving the physical properties of the vulcanizate. The amount of sulfur in the vulcanization system should be appropriately increased to avoid The sulfur concentration in the entire formulation is too low to cause sulfur.
In the tire ring rubber production formula, a large amount of recycled rubber can significantly reduce the production cost, study the difference between reclaimed rubber and natural rubber, butadiene rubber, and rationally adjust the tire ring rubber compound formula containing reclaimed rubber, which can eliminate the reclaimed rubber to steel wire. The negative influence of the physical properties of the rubber, the selection of high-quality tire tread reclaimed rubber can further improve the comprehensive performance of the wire ring rubber and extend the service life of the tire.