Vulcanization of three elements: sulfide mainly depends on three elements of sulfide product quality, time, temperature and pressure.
In the three elements of sulphur vulcanization time and temperature curing time was calculated by the van 't hoff equation.
Main product molding pressure. : the relationship between temperature and time every 10 ° C increase temperature, curing time shorten. Reduce the 10 ° C temperature, curing time doubled. Abroad sulfide has been using low temperatures over long periods of time. Temperature change range of plus or minus 2 ℃, in the case of the temperature, curing time length of decided by the quality of products.
The length of the curing time is closely related to the intensity of sulfide, the sulfide intensity refers to the vulcanizate under certain temperature, the degree of cure of per unit time are reaching or under a certain temperature curing rate. Fast curing strength, curing reaction. Short curing time required to reach the same degree of cure; Sulfide intensity is small, the vulcanization reaction speed slow, to achieve the same degree of cure time needed for long. Curing strength depends on the vulcanization vulcanizing temperature coefficient and the curing temperature of the product.
Information from: [rubber vulcanizing machine factory]