Rubber sealing strip can be classified according to several methods, such as section shape, vulcanization method, use part and purpose, use material and so on.
Classification of 1. by vulcanization method
(1) Non-continuous vulcanization method (after cutting the extruded rubber strip according to a certain length, put it into a vulcanization tank for vulcanization, and put the extruded rubber strip semi-finished product into the model for vulcanization);
(2) Continuous vulcanization method (microwave continuous vulcanization method, salt bath continuous vulcanization method, hot air continuous sulfur
several methods such as chemical method).
A. Microwave continuous vulcanization composite sealing strip: Microwave vulcanization technology is a production technology that was applied and widely promoted after the foreign energy crisis in the 1970 s. The use of microwave continuous vulcanization technology can not only produce composite strips made of metal core, solid core glue and sponge glue, but also have advantages over other continuous vulcanization devices in terms of energy saving and improving work efficiency. This technology is recognized by the world as the best process for the production of extruded products. The characteristic of microwave heating is that the heat is generated directly in the heated object, rather than from the external input as regular, which not only generates heat quickly, but also distributes evenly, which is conducive to improving product quality and greatly shortening the heating time.
B. salt bath continuous vulcanization sealing strip: salt bath vulcanization adopts salt bath system containing nitrite, which has great environmental pollution and has been gradually eliminated.
Vulcanization (Tmax:450°C and Vmax:60 m/s) can also achieve the effect of flame pretreatment, and the safety is greatly improved.
2. classified according to rubber sealing strip material
The rubber material of automobile sealing strip has three kinds of dense rubber, sponge rubber and hard rubber.
Hard rubber hardness up to Shore A95. The rubber material of the sealing strip is more resistant to aging, low temperature, water gas and chemical corrosion, especially the ethylene propylene diene rubber (EPDM) which is resistant to ozone aging. EPDM can be combined with steel belt, steel wire braided belt, TPE, flannel, flocking, PU coating, silicone coating, etc., to ensure the waterproof, dustproof, sound insulation, heat insulation, vibration reduction, anti-wear and decoration of the automobile interior and the outside world.
Under normal circumstances, EPDM sealing strip can be used stably for more than ten years. Chloroprene rubber (CR) can also be selected to have good ozone resistance and good aging resistance.
Considering the process performance of commonly used rubber compounds, it is sometimes necessary to select and use rubber, such as natural rubber (NR) and CR and styrene-butadiene rubber (SBR) or polyethylene (PE), EPDM and NR rubber and plastic to improve ozone resistance.

Classification of 3. by using parts

Automobile sealing strip,

Door and window sealing strips, ship sealing strips, mechanical sealing strips and other three categories; mechanical sealing strips include cabinet sealing strips, container sealing strips and so on. [1]

4. classified by principle

It consists of two parts: sealing and installation.

This kind of product mainly uses the elasticity of the lip, cavity, flange and other parts in the body structure and the contact pressure generated by the surface of the assembled coupling parts (glass, metal parts, etc.) to play the role of sealing and decoration. Generally used in the range of -50~70 ℃.

It consists of two parts: sealing and installation.

This kind of product mainly uses the elasticity of the lip, cavity, flange and other parts in the body structure and the contact pressure generated by the surface of the assembled coupling parts (glass, metal parts, etc.) to play the role of sealing and decoration.

Generally used in the range of -50~70 ℃.