The use of rubber vulcanizing press machine by customers depends on the fact that the speed of the vulcanizer will slow down after using it for a period of time, often blaming the problem on the rubber vulcanizing press machine, thinking that there is a problem with the equipment. In fact, this is not exactly the case, and this problem is often caused by external factors:
1. The curing time. This is an important factor affecting the vulcanization of the four-column vulcanizer. If the time is too short, the degree of vulcanization is insufficient. If the time is too long, the degree of vulcanization is too high. Flat plate vulcanizing machine can ensure the best comprehensive performance only with proper vulcanization degree.
2. The vulcanization temperature. If the temperature is 10 ℃ higher, the curing time will be extended by about half. In order to ensure a relatively average vulcanization level, thick rubber products are individually gradually heated and vulcanized at high temperature for a long time.
3. The amount of sulfur. The greater the amount of sulfur used, 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 the rubber compound, commonly known as "sulfur spray". The amount of sulfur in soft rubber does not exceed 3% individually, the amount of sulfur in semi-rigid rubber is about 20%, and the amount of vulcanization in hard rubber can be as high as 40%.
After excluding the internal problems, you can make rectifications one by one according to the description of the three points above, which will solve the problem of slow speed.
