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Preparation method of composite fiber particles for friction materials

A composite fiber and friction material technology, applied in chemical instruments and methods, other chemical processes, etc., can solve problems such as high content of fiber impurities and slag balls, unstable chemical composition of fibers, backward processing technology, etc., and achieve adhesion performance Good, stable and uniform chemical composition, and the effect of improving various performances

Inactive Publication Date: 2014-07-09
GUANGDONG JINSENLIN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the processing technology of the fiber is backward, the content of impurities and slag balls in the fiber is high, the chemical composition of the fiber is unstable, the heat resistance is poor, the dispersion is poor, and the adsorption is also poor, so the function and role of the fiber in the friction material products have not been achieved be fully utilized

Method used

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  • Preparation method of composite fiber particles for friction materials
  • Preparation method of composite fiber particles for friction materials
  • Preparation method of composite fiber particles for friction materials

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preparation example Construction

[0018] A method for preparing composite fiber particles for friction materials of the present invention, the method comprises the following steps:

[0019] (1) First use crushing equipment to crush waste ceramics into granules with a diameter of 5-10mm, and then use grinding equipment to grind the granules into 600-900 mesh powder. Waste ceramics are first-selected as industrial waste ceramics. The amount of industrial waste ceramics is large, and enterprises cannot process them as wastes, but the present invention can effectively consume these wastes. It not only achieves the effect of improving the performance of the brake pad, but also achieves the purpose of energy saving and environmental protection.

[0020] (2) Carding the rough materials of ceramic fibers, mineral fibers and inorganic whisker materials through melting and drawing respectively, crushing the slag balls produced in the melting process respectively, and loosening and stretching the cluster fiber bundles; f...

Embodiment 1

[0025] A method for preparing composite fiber particles for friction materials, the method comprising the following steps:

[0026] (1) Firstly, use a crushing device to crush the waste ceramics into particles with a diameter of 5 mm, and then use a grinding device to grind the particles into 600-mesh powder.

[0027] (2) Carding the rough materials of ceramic fibers, mineral fibers and inorganic whisker materials through melting and drawing respectively, crushing the slag balls produced in the melting process respectively, and loosening and stretching the cluster fiber bundles; finally Sandstone, slag balls and fiber filaments are separated by air separation negative pressure slag removal system, and ceramic fiber, mineral fiber and calcium carbonate whisker materials are prepared respectively.

[0028] (3) At first 8 parts of waste ceramic powders made by step (1) and 6 parts of ceramic fibers made by step (2), 16 parts of mineral fibers and 12 parts of calcium carbonate whi...

Embodiment 2

[0032] A method for preparing composite fiber particles for friction materials, the method comprising the following steps:

[0033](1) Firstly, use a crushing device to crush the waste ceramics into particles with a diameter of 8 mm, and then use a grinding device to grind the particles into 800-mesh powder.

[0034] (2) Carding the coarse materials of ceramic fiber, mineral fiber, inorganic whisker material and leather fiber through melting and drawing, crushing the slag balls produced in the melting process respectively, and loosening and stretching the cluster fiber bundle ; Finally, sandstone, slag balls and fiber filaments are separated by air separation negative pressure slag removal system, respectively, and ceramic fiber, mineral fiber and calcium carbonate whisker materials are obtained respectively.

[0035] (3) First, 10 parts of waste ceramic powder prepared in step (1) and 10 parts of ceramic fiber, 20 parts of mineral fiber, 15 parts of inorganic whisker material...

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Abstract

The invention discloses a preparation method of composite fiber particles for friction materials and belongs to the technical field of composite fibers. The preparation method is characterized by comprising the following steps: (1) grinding waste ceramic into powder; (2) preparing ceramic fibers, mineral fibers and an inorganic whisker material; (3) mixing the waste ceramic powder, the ceramic fibers, the mineral fibers and the inorganic whisker material, adding a surfactant and a coupling agent in the mixing process to perform fiber surface modification treatment; (4) kneading the treated materials, an organic binder, a softening agent, a crosslinking agent and a lubricant together, and processing the kneaded materials into particles; and (5) weighing the particles, aramid fibers, barium sulfate, calcium carbonate and friction powder in parts by weight, and stirring and mixing the materials to obtain the composite fiber particles. The preparation method provided by the invention can be used for preparing composite fiber particles for friction materials, which has high strength, good abrasion resistance and adsorption performance and high dispersing performance; and the composite fiber particles are used for preparing friction materials for composite fibers.

Description

technical field [0001] The invention relates to a method for preparing fibers, and more specifically, relates to a method for preparing composite fiber particles for friction materials. Background technique [0002] In recent years, due to the strict restrictions on the application of asbestos fibers, various non-asbestos fibers have emerged, but objectively speaking, the application of this non-asbestos fiber in friction materials is still limited to a few A mechanical mixing table for fibers. Moreover, the processing technology of the fiber is backward, the content of impurities and slag balls in the fiber is high, the chemical composition of the fiber is unstable, the heat resistance is poor, the dispersion is poor, and the adsorption is also poor, so the function and role of the fiber in the friction material products have not been achieved be fully utilized. Contents of the invention [0003] The object of the present invention is to provide a method for preparing c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/14
Inventor 王庆林
Owner GUANGDONG JINSENLIN IND
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