Non-asbestos drilling machine braking block material and manufacturing process therefor

A technology without asbestos and brake shoes, which is applied in the manufacture of friction materials and drilling rig components, to achieve the effects of good mechanical strength, high friction coefficient and long service life

Inactive Publication Date: 2009-04-08
长春市恒德摩擦制品有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve various problems of existing asbestos brake shoe material villages, and to design a non-asbestos drilling rig brake shoe material and a manufacturing method with no asbestos, no steel fiber, and excellent friction and wear properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0028] 1) Fiber pretreatment: Soak the carbon fiber with 40% nitric acid for 24 hours, then rinse with water and stir at a medium speed until the carbon fiber is fluffy. The aramid fiber is soaked in acetone for 12 hours, and then rinsed with water. The fibers were dried at a temperature of 70°C.

[0029] 2) Stirring: First add wollastonite fiber, chrome ore powder, barium sulfate, feldspar powder, stir for about 5 minutes, then add aramid fiber, after stirring for 15 minutes, add rubber powder, carbon black, clay and stir for about After 5 minutes, add carbon fiber and stir for 10 minutes, and finally put in the release agent zinc stearate and stir for 1 minute. In this way, the appearance of the mixed material after stirring is cashmere-like, uniform, various fibers are interlaced, and fillers and resin powder are distributed among them.

[0030] 3) Pressing: put the uniformly mixed material into the die of the hot press and press it, preheat the mixed material to 70°C to ...

example 2

[0034] 1) Fiber pretreatment: Soak the carbon fiber with 30% nitric acid for 18 hours, then rinse with water and stir at a medium speed until the carbon fiber is fluffy. The aramid fibers were soaked in acetone for 11 hours, and then rinsed with water. Dry the fibers at a temperature of 60°C.

[0035] 2) Stirring: first add wollastonite fiber, chrome ore powder, barium sulfate, feldspar powder, stir for about 3 minutes, then add aramid fiber, after stirring for 12 minutes, add rubber powder, carbon black, clay and stir for about After 3 minutes, add carbon fiber and stir for 6 minutes, and finally put in the release agent zinc stearate and stir for 1 minute. In this way, the appearance of the mixed material after stirring is cashmere-like, uniform, various fibers are interlaced, and fillers and resin powder are distributed among them.

[0036] 3) Pressing: put the uniformly mixed material into the die of the hot press and press it, preheat the mixed material to 70°C to 80°C,...

example 3

[0040] 1) Fiber pretreatment: Soak the carbon fiber with 40% nitric acid for 12 hours, then rinse with clean water and stir at a medium speed until the carbon fiber is fluffy. The aramid fiber is soaked in acetone for 10 hours, and then rinsed with water. The fibers were dried at a temperature of 80°C.

[0041]2) Stirring: Add wollastonite fiber, chrome ore powder, barium sulfate, feldspar powder, stir for about 2 minutes, then add aramid fiber, after stirring for 10 minutes, add rubber powder, carbon black, clay and stir for about 5 minutes Minutes, add carbon fiber and stir for 10 minutes, and finally put in the release agent zinc stearate and stir for 1 minute. In this way, the appearance of the mixed material after stirring is cashmere-like, uniform, various fibers are interlaced, and fillers and resin powder are distributed among them.

[0042] 3) Pressing system: put the uniformly mixed material into the die of the hot press for hot pressing, preheat the mixed material...

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Abstract

The invention relates to a manufacturing method of a friction material used on a drilling machine part and the drilling machine part, in particular to a non-asbestos brake shoe material for the drilling machine and a manufacturing method thereof. The components of the non-asbestos brake shoe material comprise a matrix material of rubber modified phenolic resin, a reinforcing fiber, a solid lubricant and a frictional behavior regulator and the like and are configured according to the following weight percentage: 10 percent to 20 percent of the modified phenolic resin, 17 percent to 50 percent of the reinforcing fiber, 3 percent to 6 percent of the solid lubricant, 40 percent to 61 percent of the frictional behavior regulator. The manufacturing method of the non-asbestos brake shoe material for the drilling machine is characterized by comprising the following steps of: (a) pre-processing the fiber, (b) stirring, (c) compressing and (d) post processing. The non-asbestos brake shoe material does not contain a high hardness abradant or steel wool, thus improving the defects of glass fiber, aramid fiber and aedelforsite fiber; and the abrasion resistance, heat fading property and other indexes of the brake shoe of the drilling machine are superior to the national standards.

Description

Technical field: [0001] The invention relates to a friction material applied to a drilling rig component and a manufacturing method of the drilling rig component, in particular to an asbestos-free drilling rig brake shoe material and a manufacturing method. Background technique: [0002] The disc brake shoes of oilfield drilling rigs and mine hoists currently used in my country were developed in the 1980s, and most of them use asbestos as the friction material. Under the conditions at that time, it was a friction material with a fair friction coefficient, good mechanical strength, and good adsorption force with the adhesive. The oilfield drilling rigs and mine hoist disk brake shoes produced by our company are the same as the products of other similar manufacturers in the country. Asbestos is used as the friction material, but asbestos brake shoes also have insurmountable shortcomings: [0003] 1. Asbestos has poor thermal conductivity, and the frictional heat is difficult ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/14C08K13/04C08K3/30C08K3/34C08K3/04C08J5/14B29C43/58B29C71/02B29B15/08B29B7/00
Inventor 王绍鹏马云海高福臣孙荣辉
Owner 长春市恒德摩擦制品有限公司
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