Why does the vulcanizer need to be preheated?

1. The heating structure of the rubber flat vulcanizer is mostly configured in a tubular shape. There are differences in the heating speed of each part. It takes a certain amount of time to make the temperature of each part of the plate surface tend to be uniform.
2. In order to prevent large fluctuations in temperature during vulcanization, it must be preheated to the temperature specified by the process before vulcanization production can be carried out.
Note: Pay attention to the temperature of the hot plate during preheating. If it does not meet the requirements, it must be adjusted under the guidance of the manufacturer's technical personnel. It is strictly forbidden to move it without authorization.
The meaning of decompression and exhaust again.
Factors require that rubber vulcanization must be exhausted to produce qualified products. The exhaust requirements are not high and can be fully exhausted. The secondary exhaust is a formula design or fear that it is not exhausted once and then exhausted again.
The rubber vulcanization process is a high-temperature process. From low temperature to high temperature, there will be volatilization of materials, loose gaps in the product, extrusion and discharge of excess rubber, release of vulcanization gas, etc.