The belt vulcanizer can judge the fault by the vulcanization speed. In the process of using the belt vulcanizer equipment, sometimes the vulcanization speed is slow. You may instinctively think that there is something wrong with the belt vulcanizer equipment. In fact, it is not all like this. Vulcanization time, which is an important factor affecting the vulcanization of four column belt vulcanizer. Too short time, insufficient vulcanization degree; The curing time is too long and the vulcanization degree is too high. The vulcanization temperature, such as 10 ℃ higher, prolongs the vulcanization time by about half. The amount of sulfur, the greater the amount of sulfur, the faster the vulcanization speed and the higher the vulcanization level that can be reached. The solubility of sulfur in rubber is limited, and an appropriate amount of sulfur will be precipitated from the surface of rubber.