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Friction pad for lifter and preparing method thereof

A technology of friction lining and hoist, which is applied in the field of hoist friction lining and its preparation, and can solve the problems of increasing the production cost and production time of friction lining, unsatisfactory lifting effect of hoist, and high price of friction lining, etc. problem, to achieve the effect of good radiation resistance bonding performance, long service life and good performance

Active Publication Date: 2015-12-02
LUOYANG BOSHENG FRICTION MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The friction lining is a key component of the hoist. It directly determines the hoisting capacity and safe operation of the hoist. The friction coefficient of the friction lining plays a key role. The friction lining of the hoist developed in my country in the early stage is made of cowhide, PVU, Made of PU and other materials, but the coefficient of friction can only reach 0.22-0.23. Affected by this, the lifting effect of the hoist produced is not ideal. On July 28, 2014, a report published by Luoyang Bekett Friction Material Co., Ltd. The application number is: 201410363143.9, and the patent name is: Invention patent of friction lining for mine hoist and its preparation method, which discloses a friction lining with high friction coefficient, good mechanical properties and stability, but its material composition There are many points, and the preparation process is complicated, which greatly increases the production cost and production time of the friction liner, making the friction liner expensive. At present, the industry of multi-purpose hoists such as coal in my country is weak, lack of funds, and friction with high cost. Liners cannot meet market demand, so it is imperative to produce a high-performance, low-cost friction liner that can be produced in a short period of time to help the development of industries such as coal hoists.

Method used

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  • Friction pad for lifter and preparing method thereof
  • Friction pad for lifter and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The preparation method of friction lining for mine hoist of the present invention is as follows:

[0022]Step 1: Put 18%~25% phenolic resin, 1%~9% nano-modifier, 0.8%~1.5% nitrile rubber, 0.15%~0.3% white carbon black, and 0.02% magnesium oxide into the kneader 0.1%, zinc oxide 0.03%~0.1%, fly ash 0.1%~0.15%, pyrite 0.1%~0.3%, mix and stir for 18~25 minutes, then add accelerator 0.2%~0.218%, antioxidant 0.1% ~1%, stearic acid 0.1%~0.3%, styrene-butadiene rubber 3%~10%, mix and stir for 12~18 minutes, finally add sulfur 0.01%~0.02%, cetyltrimethylammonium chloride 0.1% ~0.3%, light stabilizer 0.01%~0.03%, iron oxide yellow 0.7%~1%, mix and stir for 25~35 minutes, the temperature in the kneader is controlled at 105~110℃, after the mixing is completed, check the swelling of the raw materials degree, if the bulkiness is not enough, the mixed raw materials grasped and kneaded together will become lumpy and not easy to loosen. On the contrary, they will be scattered through ...

Embodiment 2

[0027] Step 1: Put 18% of raw materials phenolic resin, 9% of nano-modifier, 1.5% of nitrile rubber, 0.3% of white carbon black, 0.1% of magnesium oxide, 0.1% of zinc oxide, 0.15% of fly ash, yellow 0.3% iron ore, mix and stir for 25 minutes, then add accelerator 0.3%, anti-aging agent 0.7%, stearic acid 0.3%, styrene-butadiene rubber 7.95%, mix and stir for 18 minutes, finally add sulfur 0.02%, cetyl tri Mix and stir 0.25% methyl ammonium chloride, 0.03% light stabilizer, and 1% iron oxide yellow for 35 minutes. The temperature in the kneader is controlled at 110°C. If it is not enough, the mixed raw materials that are grasped and kneaded together will form lumps and are not easy to loosen. On the contrary, they will be scattered through the fingers in the form of flowing water, and then stop stirring. At this time, the kneader pushes the mixed raw materials to the receiver. Cool in the material bag, and when it cools down to 60°C, put the mixed raw materials in an open box f...

Embodiment 3

[0032] Step 1: Put 25% of raw materials phenolic resin, 2.7% of nano-modifier, 1.3% of nitrile rubber, 0.2% of white carbon black, 0.02% of magnesium oxide, 0.03% of zinc oxide, 0.1% of fly ash, yellow 0.2% iron ore, mix and stir for 18 minutes, then add accelerator 0.2%, anti-aging agent 0.3%, stearic acid 0.2%, styrene-butadiene rubber 6%, mix and stir for 12 minutes, finally add sulfur 0.01%, cetyl tri Mix and stir 0.1% methyl ammonium chloride, 0.01% light stabilizer, and 0.7% iron oxide yellow for 25 minutes. The temperature in the kneader is controlled at 105°C. If it is not enough, the mixed raw materials that are grasped and kneaded together will form lumps and are not easy to loosen. On the contrary, they will be scattered through the fingers in the form of flowing water, and then stop stirring. At this time, the kneader pushes the mixed raw materials to the receiver. Cool in the material bag. When cooled to 50°C, place the mixed raw materials in an open box for cooli...

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Abstract

The invention discloses a friction pad for a lifter and a preparing method thereof. Substrate materials adopt acrylonitrile butadiene rubber, phenolic resin, kneaded polyurethane elastomer, zinc oxide, magnesium oxide, sulphur, stearic acid, coal ash, pyrite, accelerant, antiager, white carbon black, butadiene-styrene rubber, nano modifier, cetyltrimethylammonium chloride, light stabilizer and iron oxide yellow, the raw materials are sequentially mixed through different parts of ration, kneaded in a kneading machine and a rubber mixing mill, and pressed and molded in a die, and the obtained friction pad is high in friction coefficient which is above 0.5, high temperature-resistant, good in low temperature performance, high in tearing resistance, high in a hardness range, good in anti-water property without deformation, good in humidity and sliding resistance, radiation resistance and binding property without containing substance capable of damaging a steel rope, long in service life, capable of meeting use demands of various friction equipment, low in cost and good in use performance and has good buffering shock absorbing performance.

Description

technical field [0001] The invention relates to a friction lining and a preparation method thereof, in particular to a friction lining for a hoist and a preparation method thereof. Background technique [0002] The friction lining is a key component of the hoist. It directly determines the hoisting capacity and safe operation of the hoist. The friction coefficient of the friction lining plays a key role. The friction lining of the hoist developed in my country in the early stage is made of cowhide, PVU, Made of PU and other materials, but the coefficient of friction can only reach 0.22-0.23. Affected by this, the lifting effect of the hoist produced is not ideal. On July 28, 2014, a report published by Luoyang Bekett Friction Material Co., Ltd. The application number is: 201410363143.9, and the patent name is: Invention patent of friction lining for mine hoist and its preparation method, which discloses a friction lining with high friction coefficient, good mechanical properti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L61/06C08L9/02C08L9/06C08K13/02C08K3/22C08K3/06C08K5/09C08K3/36C08K5/19B29B7/00B29C43/58
Inventor 张俊国
Owner LUOYANG BOSHENG FRICTION MATERIAL CO LTD
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