How to determine the temperature of hydraulic o-rings, hydraulic seals, hydraulic seals, rubber seal products?
As is known to all, temperature, time, pressure is the three elements in the process of rubber products in vulcanization.So, if the pressure is constant, the higher the temperature the shorter the curing time will, whereas the lower the temperature, curing time will be longer.Rubber polymer, in the condition of high temperature can make the chain destruction, cause crosslinked bond rupture, namely appear the phenomenon of sulfide to return the original.Curing temperature is determined, the equipment and grinding tool is the enterprise existing, pressure and time goes.
Vulcanization temperature choice generally consider the varieties of raw rubber and vulcanization system options to consider:
General sulphur vulcanization system of sulphur temperature range 130 ~ 158 ?;
Effective and effective vulcanization system vulcanizing temperature range 160 ~ 165 ?;
Resin or peroxide vulcanization system temperatures between 170 ~ 180 ? advisable.
Thick products or add line products vulcanization choose low temperatures over long periods of time, high temperature vulcanization of thin products.
Hard ware choose low temperature curing, slowing the rate of reaction heat generation, help to heat dissipation, lower the internal temperature of the products meet the sulfide is not easy to burst.
Usually need to secondary vulcanization silicone, fluorine rubber, vulcanizing temperature 180-200 ? advisable choice, time according to the thickness of the product to choose 4 to 12 hours.
Due to the current market competitiveness, general curing temperature is higher than the ideal curing temperature to achieve the goal of shortening the curing time, so you need to consider to promote the collocation of fertilizer application when formula design.To increase productivity at the same time, meet the production process and product consistency.
Singwax Rubber Industry Limited as rubber products, strictly control the quality, to provide you with the best products.