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Method for preparing friction lining

A friction pad and formula technology, applied in the field of friction pads, can solve problems such as the inability to meet the requirements of users, and achieve the effects of good processing performance, excellent comprehensive mechanical properties, and good melting resistance.

Inactive Publication Date: 2010-06-30
中实洛阳机械工程科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The original friction linings on the market can no longer meet the requirements of users

Method used

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  • Method for preparing friction lining

Examples

Experimental program
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Effect test

Embodiment 1

[0020] According to its formula mass parts: imported nitrile rubber 100, imported powdered nitrile rubber 40-80, imported phenolic resin 100-200; montmorillonite 20-60, active silica powder 15-45, nano CaCO 3 25-75; vulcanization system DCP 2-4, TMTD 0.5-1.5, ZnO 10-25, MgO 10-25, Fe 2 o 3 5-20; against D 0.5-1.5, against A 1-2.5; DOP 15-30.

Embodiment 2

[0022] Take imported nitrile rubber according to the formula, first preheat the roll on the open mill, and then add imported powdered nitrile rubber, DOP, ZnO, MgO, Fe 2 o 3 , Nano CaCO 3 , anti-A, anti-D, montmorillonite, and activated silica powder, knead for 20 minutes at 60-80°C, then add phenolic resin, knead for 20 minutes at 60-80°C, and finally Add DCP and TMTD, and knead for 10 minutes at 60-80°C, and the mixing is complete.

Embodiment 3

[0024] After the mixed raw materials are placed for 24 hours, put them into the mold, pressurize 20MPa-25MPa at a temperature of 120°C-180°C, and start to heat up after exhausting and overflowing, and start heat preservation when the temperature reaches 180°C Press and form, start to cool down after heat preservation and pressure holding, when the temperature drops to 120°C, demould, deburr, and make a finished product.

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Abstract

The invention discloses a method for preparing a friction lining. Basis materials adopt imported butadiene-acrylonitrile rubber, imported powdered butadiene-acrylonitrile rubber and imported phenolic resin; and reinforcing materials adopt imvite, active silicon dioxide miropowder, and nano CaCO3. A curing system adopts DCP, TMTD, ZnO, MgO and Fe2O3; an anti-aging system adopts anti-D and anti-A; and a plasticizing system adopts DOP. The friction coefficient of the friction lining under various working conditions is more than 0.28, and can completely meet the use requirements of various friction devices; the friction lining has good temperature characteristic; the friction performance is influenced a little by the temperature; particularly, the friction lining is not melted when heated, and provides guarantee for the reliability of the lining under the unforeseen circumstances; and the friction lining has the advantages of excellent comprehensive mechanical properties, good processability, easy processing of rope races on site, no substances damaging steel wire ropes, good wear resistance, heat resistance and melting resistance, and long service cycle.

Description

Technical field: [0001] The invention relates to a friction lining, in particular to a preparation method of the friction lining. technical background: [0002] At present, domestic lining research started relatively late. Compared with foreign countries, the friction lining technology was backward at first, and the performance of friction linings was not as good as that of foreign countries. At one time, imported friction linings dominated the domestic market of our country. Since the successful development of GM-3 series of high-performance friction linings in our factory in 2001, this situation has only changed. However, with the development of my country's hoist industry, the construction of large and extra-large mines has put forward higher requirements for friction linings. The original friction linings on the market can no longer meet the requirements of users. [0003] In addition, due to resource protection policies in foreign countries, the investment in the mini...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L61/06C08K13/02C08K3/36C08K3/26C08K3/22C08K3/34B66B15/04
Inventor 楚广成赵宏林玉芬马乐孙召俊
Owner 中实洛阳机械工程科技有限公司
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