Material: 1. Made of high quality EPDM rubber and foame […]
Material: 1. Made of high quality EPDM rubber and foamed. 2. The back side is made of imported double-sided tape, and the interlayer is made of mesh glass fiber. Scope of application and installation method: 1. Suitable for all kinds of doors, windows, etc. 2. Installation method: Bring the double-sided tape and directly paste it (the surface must be smooth, clean, smooth and dry). According to the use of the electric cabinet, the cabinet sealing strip has developed its own characteristics, based on the experience of 20 years of development of sealing strips, the electrical cabinet sealing strip - it has good sealing, waterproof, fireproof, insect proof, windproof, light blocking , anti-collision and long service life. The electrical cabinet sealing strip is made of EPDM rubber foam with good elasticity and compression deformation resistance, aging resistance, ozone, chemical action and wide temperature range (-40°C~+120°C). Compact and compound, it features a unique metal clamp and tongue-shaped buckle for durability and durability. It plays a key role in various electrical cabinets.
Classification according to vulcanization (1) Non-continuous vulcanization method (after extruding the extruded strip to a certain length, it is vulcanized in a vulcanization tank, and the extruded semi-finished rubber strip is vulcanized in the mold); (2) Continuous vulcanization method ( Microwave continuous vulcanization method, salt bath continuous vulcanization method, hot air continuous vulcanization method, etc.) A. Microwave continuous vulcanization composite sealing strip: Microwave vulcanization technology is a production technology widely applied after the foreign energy crisis in the 1970s. The microwave continuous vulcanization technology can not only produce composite rubber strips made of metal core, solid core rubber and sponge rubber, but also superior to other continuous vulcanization devices in terms of energy saving and work efficiency. This technology is recognized worldwide as a process for producing extruded products*. The characteristic of microwave heating is that heat is directly generated in the object to be heated, instead of being input from the outside as usual, so that not only heat is generated but also distributed uniformly, which is advantageous for improving product quality and greatly shortening the time for heating. B. Salt bath continuous vulcanization sealing strip: salt bath vulcanization adopts nitrite-containing salt bath system, which has a large environmental pollution and has been gradually eliminated. C. Hot air vulcanization sealing strip: hot air sulfur has been developed to strong wind type vulcanization, that is, high temperature, high speed hot air vulcanization (Tmax: 450 ° C and Vmax: 60 m / s) can also achieve the effect of flame pretreatment, and Security has been greatly improved.
According to the rubber sealing strip material classification: the rubber material of the automobile sealing strip is dense rubber, sponge rubber and hard rubber. Hard rubber has a hardness of up to Shore A95. The sealant is made of anti-aging, low-temperature, moisture-resistant, chemical-resistant, especially ozone-resistant EPDM. EPDM can be combined with steel strip, steel wire braid, TPE, flannel, flocking, PU coating, silicone coating, etc. to ensure waterproof, dustproof, soundproof, heat insulation, vibration and protection of the interior and exterior of the car. Grinding and decorative effects. In general, EPDM seals can be used stably for more than ten years. Neoprene (CR) with good ozone resistance and good aging resistance can also be selected. Considering the process performance of common rubber compounds, it is sometimes necessary to use a combination of rubber, such as natural rubber (NR) and CR and styrene-butadiene rubber (SBR), or polyethylene (PE), EPDM and NR rubber and plastic. Improve ozone resistance. Third, according to the use of parts can be divided into: automotive seals, door and window seals, ship seals, mechanical seals and other three categories; mechanical seals include cabinet seals, container seals and so on. The principle of this paragraph consists of two parts: sealing and installation. Such products mainly utilize the elasticity of the lip, cavity, flange and the like in the body structure to seal and decorate the contact pressure generated by the surface of the assembled coupling member (glass, metal member, etc.). Generally used in the range of -50 to 70 °C. Edit this paragraph of the process of compacting strips, sponge strips and two composite strips, three composite seals according to their use of parts and conditions of use, can design different cross-sectional structures. Taking into account the anti-aging, oil, heat, flame, sunlight, ozone, acid and alkali resistance, chemical resistance, flame retardant and other performance requirements, generally use neoprene, ethylene propylene rubber, silicone rubber, natural - chloroprene -Styrene is made of rubber, rubber, rubber and other rubber compounds with excellent aging resistance. The manufacturing method uses an extrusion molding continuous vulcanization method, an extrusion molding vulcanization can vulcanization method, or a compression vulcanization method. It consists of two parts, seal and installation. Such products mainly utilize the elasticity of the lip, cavity, flange and the like in the body structure to seal and decorate the contact pressure generated by the surface of the assembled coupling member (glass, metal member, etc.). Generally used in the range of -50 to 70 °C.