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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: 2013-11-13
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] The method for preparing composite fiber particles for friction materials of the present invention includes 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 powder with 600-900 mesh. Waste ceramics are preferably industrial waste ceramics. The amount of industrial waste ceramics is large. As waste, enterprises cannot process them, and the present invention can just effectively consume these wastes. It can not only improve the performance of brake pads, but also achieve the purpose of energy saving and environmental protection.

[0020] (2) Combine the coarse materials of ceramic fibers, mineral fibers and inorganic whisker materials that have been melted and drawn separately, and crush the slag balls produced during the melting process to loosen and stretch the clumped fiber bundles; finally The sand and gravel, slag ball and fiber filam...

Embodiment 1

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

[0026] (1) First, use crushing equipment to crush waste ceramics into 5mm diameter particles, and then use grinding equipment to grind the particles into 600 mesh powder.

[0027] (2) Combine the coarse materials of ceramic fibers, mineral fibers and inorganic whisker materials that have been melted and drawn separately, and crush the slag balls produced during the melting process to loosen and stretch the clumped fiber bundles; finally The sand and gravel, slag ball and fiber filaments are separated by the air separation negative pressure slag removal system to prepare ceramic fiber, mineral fiber and calcium carbonate whisker materials respectively.

[0028] (3) Put 8 parts of waste ceramic powder prepared in step (1) and 6 parts of ceramic fiber prepared in step (2), 16 parts of mineral fiber and 12 parts of calcium carbonate whisker material into the multif...

Embodiment 2

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

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

[0034] (2) Combine the coarse materials of ceramic fiber, mineral fiber, inorganic whisker material and leather fiber that have been melted and drawn, respectively, to break the slag balls generated in the melting process, and loosen and stretch the clumpy fiber bundle ; Finally, the sand, the slag ball and the fiber filaments are separated by the air separation negative pressure slag removal system, and the ceramic fiber, the mineral fiber and the calcium carbonate whisker material are respectively prepared.

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

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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, more specifically, to a method for preparing composite fiber particles for friction materials. Background technique [0002] In recent years, due to strict restrictions on the application of asbestos fibers, various non-asbestos fibers have emerged. Objectively speaking, the application of such non-asbestos fibers in friction materials due to the limitations of processing technology and processing equipment is still limited. Kind of fiber on the mechanical mixing table. Moreover, the fiber processing technology 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 dispersibility is poor, and the adsorption is also poor. Therefore, the function and role of the fiber in the friction material product is not enough. To be fully utilized. Summary of the invention [0003] The purpose of the present inv...

Claims

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Application Information

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