Method for producing continuous wide width silicon rubber thin product composite thin rubberized fabric

Abstract

The present invention provides a method of producing continuous wide coverage thin fabric with composite silicon rubber. Fabric is soaked with silicon rubber and coated with two layers of silicon rubber on two sides to form the continuous wide coverage thin fabric with composite silicon rubber. The continuous wide coverage thin fabric may have width up to 60 in, and has high elasticity, heat resistance and fire-proof characteristic.

Description

Technical field [0001] The present invention relates to a manufacturing method of silicone rubber composite tape, in particular to a continuous wide-width silicone rubber thin product that can be manufactured with a width of up to 60 inches, elasticity and both high temperature resistance and fire resistance. Manufacturing method of composite thin tape. Background technique [0002] Silicone rubber (silicone) is a non-toxic material, which has excellent weather resistance, cold resistance and heat resistance, and can be used in a wide range of temperature (-60 ℃ ~ 250 ℃), and it is used by other rubbers. Not in time. What's more, silicone rubber can be used as O-rings, oil seals, industrial rollers, medical, food machinery, and applications in extremely high temperature and oil-free places. Therefore, this material has deep development value. [0003] Existing manufacturing of silicone rubber sheets can be made by molding and calendering. However, the method of making silicone ru...

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Problems solved by technology

[0003] Existing manufacturing of silicone rubber sheets (sheets) can be made by molding and calendering machines, but for the method of making silicone rubber sheets by molding process, it is often limited to the size of the mold, resulting in the obtained Although the product can have a wide width, it cannot be made into a continuous sheet, which will cause the problem of non-conformity in the size of the increasingly widely used silica gel sheet, and the entire production capacity will also be due to non-continuous restrictions, resulting in an increase in cost

In addition, the tolerance of thin molded products (0.3mm ~ 3mm) will be larger than that of products made by calender, which will further highlight its shortcomings.

However, although the products produced by calenders are better than molding methods, the silicone rubber composite tapes that can be produced by existing calenders are of narrow width, so the economic benefits are poor.

[0004] Here, it is worth mentioning that among the manufacturing methods used in the industry, the molding method and the extrusion method are special-shaped manufacturing methods, which are different from the single shape made by a calender. Furthermore, according to US Patent No. 3,253,073 The method of inserting the extensible reinforcing fabric in the extruded silicone rubber tape is similar to the product of the silicone rubber composite tape, but this method is only suitable for narrow thin products and applied to the tape

[0005] However, the continuous wide-width silicone rubber composite tape made by a calender has a thickness limit that cannot be thinner (<0.3m / m).

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