Vulcanization (Tmax:450 degrees C and Vmax:60m/s) can also achieve the role of flame pretreatment, while the safety is greatly improved.
Two. According to the material of rubber sealing strip
There are three kinds of rubber material in automobile sealing strip: dense rubber, spongy rubber, and hard rubber.
The hardness of hard rubber is up to Shao A95, sealing tape of more materials, the use of anti-aging, low temperature, moisture resistance, chemical resistance in particular.
It is three yuan ethylene propylene rubber (EPDM) resistant to ozone aging. EPDM can be used with steel tape, steel wire braid, TPE, flannelette, flocking and PU coating, silicone coating and other composites, to ensure the car interior and the outside and their own waterproof, dustproof, sound insulation, heat insulation, vibration reduction, anti-grinding and decorative role.
Under normal circumstances, EPDM seals can be used steadily for more than ten years. Chloroprene rubber (CR), which has good ozone resistance and good aging resistance, can also be selected.
In view of the technical properties of conventional rubber, there are also three types of rubber, such as natural rubber (NR) and CR and styrene butadiene rubber (SBR), which are sometimes used.
Rubber is used in combination with polyethylene (PE), EPDM and NR rubber to improve ozone resistance.
Rubber Sealing Strip Usage fraction
It has automobile sealing strip, door and window sealing strip, ship sealing strip, mechanical seal strip and so on three big kinds, in which mechanical seal strip includes the cabinet, the seal strip, the container seal strip and so on.
Rubber Sealing Strip principle
It consists of two parts: seal and installation. Such products are mainly used in the body structure of the lip, cavity, flange and other parts of flexibility and assembly.
The contact pressure produced by the surface of a component (glass, metal, etc) that acts as a seal and ornament. Generally used in the range of -50 to 70 degrees centigrade.
It consists of two parts: seal and installation.
Such products mainly use the flexibility of the lip, cavity, flange and other parts of the body structure to seal and decorate the contact pressure produced by the assembled parts (glass, metal parts, etc.).
It is generally used in the range of -50 to 70 degrees centigrade.
Rubber sealing strip can be classified according to the shape of the cross-section, the method of vulcanization, the location and use of the use of materials and other methods.
(1) discontinuous vulcanization method (after extruding the strips according to a certain length, vulcanizing them into the vulcanizing pot, and extruding the semi-finished products
Vulcanized in a model
(2) continuous vulcanization method (microwave continuous vulcanization method, salt bath continuous vulcanization method, hot air continuous sulfur)
Chemical method and other methods. A. microwave continuous vulcanization composite sealing strip: microwave vulcanization technology is the foreign energy crisis in the 1970s.
Production technology that has been widely applied since then. Microwave continuous vulcanization technology not only can produce metalcore, solid core rubber, and sponge Glue, a variety of materials, composite tape, but also in terms of energy saving, improve work efficiency, compared to other continuous curing device advantages. This technology has been the world recognized as the best way to produce extrusion products. Microwave heating is characterized by the fact that heat is produced directly within the heated object rather than the heat.