Rubber vulcanization temperature is one of the three major factors of vulcanization. It is the basic condition for rubber to undergo a vulcanization reaction (crosslinking reaction) and directly affects the vulcanization speed of rubber and the quality of products. As with all chemical reactions, the vulcanization reaction accelerates with increasing temperature and is prone to generate more low-sulfur crosslinks; if the vulcanization temperature is low, the speed is slow, the formation efficiency is low, and more polysulfide crosslinks are formed. The vulcanization temperature is generally applicable to Vanthofer's law, that is, the reaction rate doubles every time the temperature rises by 8 to 10 ° C (approximately equivalent to a gauge pressure of steam pressure); or, the reaction time is reduced by about half.