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Method for preparing rockwool coating resin

A manufacturing method and glue-spraying technology, which can be used in manufacturing tools, glass manufacturing equipment, etc., can solve the problems of unstable performance of finished products of reinforced fiber friction materials, poor compatibility between reinforced fibers and matrix, and overall performance gap. Achieve the effect of reducing temperature, easy braking noise, and high braking pressure

Inactive Publication Date: 2006-10-11
周惠昌
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AI Technical Summary

Problems solved by technology

Although there are so many substitute reinforcing fibers, there are still many deficiencies in non-asbestos fibers; ① the compatibility between the reinforcing fibers and the matrix is ​​poor; ② the price is much higher than that of asbestos-based friction materials; ③ the production of reinforced fiber friction materials The performance of the product is not very stable. Although the substitute fiber friction material has surpassed the asbestos-based friction material in some aspects, there is still a big gap in terms of overall performance.

Method used

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Embodiment Construction

[0016] A method for producing glue-sprayed rock wool, comprising the following process steps:

[0017] a. Pulverize; pulverize basalt or slag, the chemical components of basalt or slag contain 40-45% by weight of silicon dioxide, 7-9% of aluminum oxide, 32-38% of calcium oxide, and 6% of magnesium oxide ~ 9%, other inorganic substances 5 ~ 8%, the crushed ore powder is required to reach 40 ~ 60 mesh;

[0018] b. High-temperature melting; melting the pulverized ore powder in an induction furnace or a resistance furnace, and the melting temperature is 1300°C to 1800°C;

[0019] c. Spinning: spin the melt into rock wool fibers with a four-roller centrifuge; the fiber diameter is 1-10 μm;

[0020] d. Spray glue; spray phenolic resin on the surface of rock wool fiber to get glue spray rock wool, and the thickness of the glue spray layer is 0.02 μm;

[0021] e. Slitting: Slitting the glue-sprayed rock wool after the glue-spraying treatment to a length of 0.5-1.0mm;

[0022] f. Sc...

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Abstract

This invention relates to a technical sphere of producing mineral fibre, in particular to a method for preparation of spraying gum rock fiber, which comprises the following steps: a, comminuting; b, high temperature fusion; c, spouting yarn; d, spouting gum; e, cutting respectively; f, screening; g, packing. Wherein, the raw material is basalt or cinder, in which the mass proportion of each chemical composition is following: silica dioxide 40~45%, alumina 7~9%, calcia 32~38%, magnesia 6~9%, other inorganics 5~8%.The spraying gum rock fiber produced with the invention has good frictional behavior and very cheap.

Description

Technical field [0001] The invention relates to the technical field of manufacturing methods of mineral fibers, in particular to a manufacturing method of glue-sprayed rock wool. Background technique [0002] As a natural mineral fiber, asbestos has the characteristics of light weight, low price, good dispersion, good friction and wear performance, and good reinforcement effect, so it has been widely used in friction materials. From the 1920s to the 1980s, asbestos-based friction materials almost dominated the world. Since asbestos and its pyrolysis products were identified as carcinogens in the 1970s, many countries have made specific regulations on the use of asbestos. Switzerland and Germany stipulate that cars produced in 1988 cannot use asbestos-based friction materials. The United States also has a proposal to ban asbestos within 10 years. At the same time, strict restrictions on asbestos dust necessitate high investment in dust removal equipment, resulting in an in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/00C03B37/16C03C25/34
Inventor 周惠昌
Owner 周惠昌
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