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A kind of lightweight porous ferrous metal friction material and preparation method thereof

A technology of ferrous metals and friction materials, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of short service life of parts, non-ferrous metal pollution, human body pollution, etc., and achieve slow rusting speed, low cost, and human body harmless effect

Active Publication Date: 2014-10-08
BEIJING JINKE COMPOSITE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing friction materials have the following problems in application: (1) harmful substances produced during the friction process will cause air and water pollution and damage to the human body; (2) a large amount of organic binders are used in a non-porous state, The service life of the parts is short and the efficiency is low; (3) Some places with high requirements for safety production, such as anti-static, non-flammable, and impact-resistant ground treatment, can only be treated with polymer materials, and the disadvantage is that anti-static There is no balance between non-ignition and non-flammability. The fire resistance of organic polymer materials can only reach B2 level and the impact resistance is poor. At the same time, due to the effect of polymer materials and organic solvents, there are also problems of environmental pollution.
At the same time, it has the functions of adsorption, catalysis and degradation, and is a kind of remover for harmful substances in sewage. However, in practical applications, a large number of ferrous metals in the original ecological unprocessed state are used, and the utilization efficiency is very low, and their full potential is not fully utilized. Due physical and chemical performance advantages
At present, light non-ferrous metal materials such as aluminum are still widely used in the industrial manufacturing process, and light porous ferrous metal materials have not been utilized. Non-ferrous metal materials are not only expensive, but also easily cause non-ferrous metal pollution during use

Method used

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  • A kind of lightweight porous ferrous metal friction material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0028] Select low-carbon waste iron oxide particles with an iron content of 70% and a particle size of 2mm; use the 5XZC-15 winnowing machine produced by Shijiazhuang Dingli Machinery Company to separate the light impurities in the iron material; The ACM-B pulverizer produced by Fengli Machinery Co., Ltd. crushes the iron material selected by wind into 300-mesh fine powder; the fine powder is processed by XCT465 magnetic separator produced by Zhengzhou Kaiyuan Machinery under the condition of 11W power Further separate the impurities in the iron powder so that the iron content in the material reaches 80%; the material processed by magnetic separation, 20 purpose limestone and 10 purpose anthracite are fully mixed with a mixer in a ratio of 7: 1: 2 by weight. Mix evenly; put the mixed material into a high-temperature-resistant crucible, send it into a high-temperature furnace at 1100°C, and add carbon monoxide gas to roast and foam for 96 hours; cool the roasted and foamed mater...

Embodiment 2

[0030] Select low-carbon waste chromium oxide particles with a chromium content of 60% and a particle size of 0.5mm; use the 5XZC-15 winnowing machine produced by Shijiazhuang Dingli Machinery Company to separate the light impurities in the chromium material; The ACM-B pulverizer produced by Fujian Fengli Machinery Co., Ltd. crushes the chromium material selected by wind into 100-mesh fine powder; the fine powder passes through the XCT465 magnetic separator produced by Zhengzhou Kaiyuan Machinery, and is magnetically separated under the condition of a power of 11W. Processing further separates the impurities in the chromium powder so that the chromium content in the material reaches more than 70%; the material processed by magnetic separation, 20-mesh limestone and 10-mesh anthracite are mixed in a ratio of 7:1:2 by weight The machine is fully mixed evenly; put the mixed material into a high-temperature-resistant crucible, send it into a high-temperature furnace at 1300 ° C, an...

Embodiment 3

[0032] Select low-carbon waste manganese oxide particles with a manganese content of 68% and a particle size of 1mm; use the 5XZC-15 winnowing machine produced by Shijiazhuang Dingli Machinery Company to separate the light impurities in the manganese material; The ACM-B pulverizer produced by Fengli Machinery Co., Ltd. crushes the manganese material selected by wind into 200 mesh fine powder; the fine powder is processed by XCT465 magnetic separator produced by Zhengzhou Kaiyuan Machinery under the condition of 11W power Further separate the impurities in the manganese powder so that the manganese content in the material reaches more than 75%; the material processed by magnetic separation, 20-mesh limestone and 10-mesh anthracite are used in a mixer in a ratio of 7:1:2 by weight Mix well; put the mixed material into a high-temperature-resistant crucible, put it into a high-temperature furnace at 1200 ° C, and add carbon monoxide gas to roast and foam for 96 hours; cool the roas...

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Abstract

The invention relates to a light porous black metal friction material which consists of black metal particles, carbon, hydrochloric acid insoluble substance and water. The particle size is -20 meshes to +120 meshes, and the density is 1.5-2.2T / M3. The invention further provides a preparation method for light porous black metal friction material. The method uses a low-carbon waste black metal material as a raw material and comprises the steps of smashing, magnetic separation, winnowing, grading, material mixing and the like. A foaming agent is added into the low-carbon waste black metal material to perform high-temperature processing foaming at the high temperature of 1100-1300 DEG C, and finally the loosened light porous black metal friction material with rough surface, plasticity and low density and capable of retarding the rusting speed is prepared. Compared with existing friction materials, the light porous black metal friction material is free of pollution, free of harm to human body, cheap in manufacture cost and superior in performance.

Description

【Technical field】 [0001] The invention belongs to the technical field of friction materials. More specifically, the present invention relates to a lightweight porous ferrous metal friction material and its preparation method 【Background technique】 [0002] Friction material is a component material used in power machinery that relies on friction to perform braking and transmission functions. It is composed of polymer binder (resin and rubber), reinforcing fiber and friction performance regulator and other compounding ingredients, and is a product made through a series of production and processing. They are widely used in various construction machinery and equipment such as automobiles, trains, airplanes, and oil drilling rigs. Civilian products such as bicycles, washing machines, etc. are indispensable materials for power transmission or braking deceleration. [0003] The existing friction materials have the following problems in application: (1) harmful substances produce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/14
Inventor 曹洪生王新民李杰王亚娥
Owner BEIJING JINKE COMPOSITE MATERIAL
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