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Fraction lining for mine hoist and preparation method of fraction lining

A mine hoist and friction pad technology, applied in the field of friction pads and their preparation, can solve problems such as inability to use

Inactive Publication Date: 2014-12-10
洛阳百克特科技发展股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the 1990s, China began to develop a new type of high-performance friction liner. The test value of its friction coefficient reached 0.25, but it could not be used in the equipment, so imported materials had to be used.

Method used

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  • Fraction lining for mine hoist and preparation method of fraction lining

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation method of friction lining for mine hoist of the present invention is as follows:

[0027] Step 1: First add 100 parts of powdered nitrile rubber into the mixer, then add 80 parts of phenolic resin, 30 parts of nano-silica, and 12 parts of magnesium oxide, and mix for 5 minutes; then add 3 parts of zinc oxide and 8 parts of iron oxide yellow , 2 parts of accelerator M, 2 parts of accelerator DM, 3 parts of anti-aging agent RD, 3 parts of anti-aging agent D, 2 parts of DOP, 5 parts of stearic acid, and knead for 5-10 minutes; finally add 2 parts of sulfur and knead for 5 minutes. The temperature in the mixer is controlled at 60-80°C, and the mixing time is 15-20 minutes. After the mixing is completed, put the mixed powder into the inner bag without tying the mouth.

[0028] Step 2: Place the powder raw materials mixed in step 1 for 17-24 hours to cool to room temperature, and then carry out the first rubber mixing. The purpose is to preliminarily refine t...

Embodiment 2

[0032] Basically the same as Example 1, the difference is that the raw material ratio: 100 parts of nitrile rubber, 100 parts of phenolic resin, 38 parts of nano white carbon black, 15 parts of magnesium oxide, 4 parts of zinc oxide, 10 parts of iron oxide yellow, 1 part of agent M, 1 part of accelerator DM, 2 parts of anti-aging agent RD, 2 parts of anti-aging agent D, 1 part of DOP, 6 parts of stearic acid, and 2 parts of sulfur.

Embodiment 3

[0034] It is basically the same as Example 1, except that the raw material ratio is: 100 parts of nitrile rubber, 120 parts of phenolic resin, 45 parts of nano-silica, 18 parts of magnesium oxide, 5 parts of zinc oxide, 12 parts of iron oxide yellow, 2 parts of agent M, 2 parts of accelerator DM, 3 parts of anti-aging agent RD, 2 parts of anti-aging agent D, 1 part of DOP, 7 parts of stearic acid, and 3 parts of sulfur.

[0035] After testing, the main parameters of the friction coefficient and physical and mechanical properties of the friction lining are shown in Table 1 and Table 2, respectively.

[0036] Table 1

[0037]

[0038] Table 2

[0039] serial number

[0040] The results show that the various technical indicators of the friction lining can meet the requirements of JB / T10347-2002, and some indicators are higher than the standard, which can meet the current use requirements and future development needs of friction lifting equipment.

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Abstract

The invention relates to a fraction lining for a mine hoist and a preparation method of the fraction lining. Base materials comprise powdered butadiene-acrylonitrile rubber and phenolic resin; a vulcanization system comprises sulfur, magnesium oxide, zinc oxide, iron oxide yellow, an accelerant M and an accelerant DM; a reinforcing material is nano white carbon black; an anti-ageing system comprises an anti-ageing agent RD and an anti-ageing agent D; and a plasticizing system comprises DOP and stearic acid. The preparation method comprises the following steps: proportioning the raw materials in parts by mass, and pressing and molding the raw materials in a mould after mixing according to a certain sequence, thus obtaining the fraction lining. The prepared fraction lining is high in friction coefficient which is not lower than 0.3 under various working conditions, has high abrasive resistance, high-temperature fusion resistance, tearing resistance, chemical corrosion resistance and the like, further has good mechanical performance and processing performance, does not contain substances which damage a steel wire rope, is long in service life and is capable of satisfying using requirements of various types of friction equipment.

Description

technical field [0001] The invention relates to a friction lining and a preparation method thereof, in particular to a friction lining for a mine hoist and a preparation method thereof. Background technique [0002] Mine hoist friction liner is an important accessory of large multi-rope friction hoist, which is an important equipment for mining. The lifting energy of the equipment mainly depends on the friction coefficient of the friction liner. my country's development of friction linings for mine hoists started relatively late, and polymer materials such as cowhide, PVC, and PU were used at the earliest, but they were all eliminated due to low friction coefficients. In the 1990s, China began to develop a new type of high-performance friction lining. The test value of its friction coefficient reached 0.25, but it could not be used in the equipment, so imported materials had to be used. [0003] Due to foreign resource protection policies, the investment in the mining indus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L61/06C08K13/02C08K3/22C08K3/36C08K5/09B29B7/00
Inventor 张家旖杨蕊张晓雷裴从影高丹丹李闯任政波
Owner 洛阳百克特科技发展股份有限公司
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