Xinhua Xu seal curing process the most important processes

Xinhua Xu seal variety, but the production process is basically the same.

The basic process Xinhua Xu rubber products are mixing, kneading, rolling, extrusion, molding, curing six basic steps. Of course, raw material preparation, product testing, sorting and packaging basic process ultimately.

Xinhua Xu seal vulcanized rubber is the last step of the manufacturing process, in this process, the rubber through a series of complex chemical changes, the plastic becomes elastic rubber or hard rubber to obtain a better physical and mechanical properties and chemical properties.

The plastic rubber into an elastic rubber vulcanization process is called it is a certain amount of vulcanizing agent such as sulfur, vulcanization accelerators, etc. added to the semi-finished products made from the raw rubber in the autoclave is carried out at a predetermined temperature heating, insulation make raw rubber between linear molecules generated by "sulfur bridges" and the establishment of cross-linked network structure of the plastic so that the plastic material into a vulcanized rubber having high elasticity. Since crosslinks mainly so called "cured" by the sulfur components. With the rapid development of synthetic rubber varieties now except sulfur vulcanizing agent but also have a lot of organic sulfur compounds, peroxides, metal oxides.

Xinhua Xu vulcanization process of rubber seal materials become more valuable materials. Product quality and service life depends largely on the curing process. So vulcanization process of rubber and rubber products manufacturing and application are of great importance.

The nature of the material depends on the structure of matter. Uncured rubber seals linear macromolecules was curled in a free state of motion and, when subjected to external force, the macromolecular segments prone to displacement, that is, there is a big plastic flow, after vulcanization, rubber flexible long-chain molecules crosslinked network structure into space, and thus the relative movement of macromolecular chains subject to certain restrictions. The external force, less prone to large displacements, and result in higher stress and elongation strength, physical and mechanical properties and chemical properties get improved.

When the rubber seal products appears sulfur spray, spray frost phenomenon, it is because the vulcanization process 1, 2 less sulfur, a certain amount of complexing agent exceeds its solubility in the rubber compound 3, kneading roll temperature is too high.

I need 1, to increase the curing time, 2, with dosage adjustment, 3, kneading roll temperature to be appropriate. Curing effect on the vulcanization process used to measure the depth of loudness.