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What are the requirements of high temperature resistant silicone tube in the production technology?
High temperature resistant silicone rubber hose is mainly used in the automobile, but also can be used in the industry of high temperature steam pipe. General hose
All know that in the high temperature, immediately become soft or melt. But high temperature resistant silicone tube will not exist these problems. Because high temperature resistant silicone
There is a certain requirement for the production technology.
First, the high temperature resistant silicone rubber hose products structure is mainly composed of four or five layers of fabric layer and silicone rubber, and strengthen
The material of the fabric layer is mainly the aromatic polyamide fiber, and then the silicone rubber compound is completely impregnated on the inner and outer surface of the fiber cloth,
And all layers are uniform. While the thickness of the fabric layer is 0.5mm, 0.4mm, but the nominal quality is 150g/m2
.
The appearance of silicone rubber hose is not allowed to have the bubble, the gap, the local irregularities and other defects. Physical and mechanical properties of silicone rubber compound
Should be in accordance with the relevant provisions. Silicone rubber products must be able to withstand the explosive pressure of 1.2Mpa. Silicone tube placed under 250
168h, inner surface and outer surface should not appear crack, fracture, silicone rubber hose products, the hardness of A is not more than 70 degrees. Placed at 300
168h, inner and outer surfaces should not appear cracks, fracture. After aging at 250, the burst pressure is not less than 168h.
Note that the high temperature resistant silicone tube products can also be used at 250, and then at 300. So can
Prolong the service life of silicone rubber hose. Xiao Bian recommended a article on the limit temperature of silicone tube. "Silicone tube in the extreme
Long time resolution under the limit of temperature
This paper comes from Shenzhen,.
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