The main function of rubber seals is to prevent leakage and leakage. Traditional seals are mostly made of natural rubber. Natural rubber seals have good mechanical strength and flexibility resistance, low hysteresis loss during use, low deformation and heat generation, good sealing effect and long service life. However, the price of natural rubber is high and the price fluctuates greatly. The cost pressure of using natural rubber alone to produce rubber seals is relatively high, and the manufacturer's ability to control costs is poor.
1. Reasons for choosing tire reclaimed rubber to produce seals
The main components of tire reclaimed rubber are natural rubber, synthetic rubber and carbon black. The effective rubber hydrocarbon content is about 30%. It has good compatibility with natural rubber and has good combined effect. It can be used with natural rubber in any ratio of 2YLYY16 to produce rubber seals. . Tire reclaimed rubber has high plasticity and is easy to mix; reclaimed rubber has good fluidity and is easy to extrude and calender. The use of reclaimed rubber in natural rubber seals can effectively improve the performance of the rubber material and reduce power consumption.
In actual production, the tire reclaimed rubber that has undergone fierce treatment such as desulfurization is stable in its hydrocarbon state, and the rubber material has small expansion and contraction. Mixing with natural rubber to produce rubber seals can reduce seal shrinkage, ensure clear seal texture, and further improve rubber The sealing effect and aging resistance of the seal.
2. Skills of using tire reclaimed rubber to produce seals
When using reclaimed tire rubber in natural rubber to reduce the production cost of rubber seals, because the seals have higher requirements for accuracy and size, it is recommended to use ultrafine reclaimed tire rubber and fine reclaimed rubber without impurities. For rubber seals with high mechanical strength requirements, it is recommended to use tire tread reclaimed rubber, which has a high effective rubber hydrocarbon content. Reasonably determine the amount of reclaimed rubber based on the index requirements of rubber seals and specific indicators of reclaimed rubber.
In actual production, tire reclaimed rubber can not only be used in the production of natural rubber seals, but also used with nitrile rubber to produce conductive gaskets, etc. Some rubber seals can also use tire reclaimed rubber alone to reduce more raw materials cost.
As a substitute raw material for high-priced raw rubber, tire reclaimed rubber can not only reduce the cost of raw materials, but also improve the processing technology of combined rubber materials, reduce energy consumption, improve the natural rubber vulcanization process, reduce vulcanization reaction, and improve rubber sealing. Pieces are resistant to compression set and aging. Later editors will continue to share with you the reference formula and production process skills of tire reclaimed rubber to produce rubber seals.
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