Now many places will use rubber seals , such as cars, doors and windows, machinery, equipment and so on. Some people who are familiar with rubber sealing strips may have roughly understood that different types of rubber sealing strips have different characteristics. 工艺。 But few laymen know the production process of rubber seals . The following introduces the production process of rubber sealing strips by Wangzhuo Xiaobian:
1: Non-continuous vulcanization method (after cutting the extruded sealant strip to a certain length, it is vulcanized in a vulcanization tank, and the semi-finished product of the extruded sealant strip is vulcanized in the model);
2: Continuous vulcanization (microwave continuous vulcanization, salt bath continuous vulcanization, hot air continuous vulcanization, etc.).
A. Microwave continuous vulcanized composite sealing strip : Microwave vulcanization skills are widely used production skills after the energy crisis abroad in the 1970s. Using microwave continuous vulcanization skills can not only produce a variety of data compound sealing strips made of metal core, solid core rubber and sponge rubber, but also has advantages over other continuous vulcanization equipment in terms of energy saving and improved work efficiency. This skill is internationally recognized as the best process method for producing extruded seal products. The characteristic of microwave heating is that heat is generated directly in the heated object, instead of being input from the outside as usual, so that it not only generates heat quickly and spreads evenly, which is conducive to improving product quality and greatly shortening the heating time.
B. Salt bath successive vulcanization sealing strips : Salt bath vulcanization uses a salt bath system containing nitrite, which has a greater environmental pollution and has been gradually phased out.
Vulcanization (Tmax: 450 ° C and Vmax: 60m / s) can also reach the effect of flame pretreatment, and the safety is greatly improved.
The above are the major production techniques of rubber seals introduced by Wangzhuo Xiaobian.
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