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Winch brake pad and manufacture method thereof

A technology for brake pads and hoisting machines, which is applied in the direction of hoisting devices, mechanical equipment, friction linings, etc., can solve the problems of low application rate of brake friction materials for large-tonnage hoisting machines, and achieve low cost, simple manufacturing, and broad market prospects. Effect

Inactive Publication Date: 2013-01-30
杭州汉乐科新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, so far, the application rate of braking friction materials for large-tonnage winches in China is still very low. In addition to the problems of safety and social environmental protection, the current situation of friction materials for large-tonnage winch brakes has become a constraint for my country's large-tonnage electric hoist industry. important factor for development

Method used

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  • Winch brake pad and manufacture method thereof
  • Winch brake pad and manufacture method thereof
  • Winch brake pad and manufacture method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The hoist brake pad includes an iron-based framework and a friction material layer bonded to the bonding surface of the iron-based framework; wherein the friction material layer is composed of the following raw materials: 10 parts of melamine modified phenolic resin, 8.6 parts of nitrile rubber, ceramic 10 parts of fiber, 4 parts of carbon fiber, 6 parts of aramid fiber, 10 parts of calcium carbonate whisker, 1 part of bauxite, 5 parts of vulcanized ladder, 5 parts of aluminum hydroxide, 6 parts of silicon bath soil, 5 parts of potassium feldspar, 0.5 parts of stearic acid, 0.7 parts of accelerator DM, 1 part of anti-aging agent BLE-W, 1.2 parts of sulfur, 5 parts of cashew nut shell oil friction powder, 3 parts of artificial graphite, 3 parts of foam iron powder, 5 parts of petroleum coke, magnesium borate 6 parts of whiskers, 4 parts of cuprous oxide.

[0028] Preparation:

[0029] 1. Weigh various raw materials according to the formula for use;

[0030] 2. Mixing: ...

Embodiment 2

[0035] The hoist brake pad includes an iron-based framework and a friction material layer bonded to the bonding surface of the iron-based framework; wherein the friction material layer is composed of the following raw materials: 12 parts of melamine modified phenolic resin, 9 parts of nitrile rubber, ceramic 9 parts of fiber, 4 parts of carbon fiber, 5 parts of aramid fiber, 12 parts of calcium carbonate whisker, 1 part of bauxite, 4 parts of vulcanized ladder, 5 parts of aluminum hydroxide, 3 parts of silicon bath soil, 6 parts of potassium feldspar , 0.5 parts of stearic acid, 0.7 parts of accelerator DM, 1 part of anti-aging agent BLE-W, 1.2 parts of sulfur, 6 parts of cashew nut shell oil friction powder, 4 parts of artificial graphite, 3 parts of foam iron powder, 5 parts of petroleum coke, boric acid 5.6 parts of magnesium whiskers, 3 parts of cuprous oxide.

[0036] Preparation:

[0037] 1. Weigh various raw materials according to the formula for use;

[0038] 2. Mixi...

Embodiment 3

[0043] The hoist brake pad includes an iron-based framework and a friction material layer bonded to the bonding surface of the iron-based framework; wherein the friction material layer is composed of the following raw materials: 11 parts of melamine modified phenolic resin, 10 parts of nitrile rubber, ceramic 12 parts of fiber, 4 parts of carbon fiber, 4 parts of aramid fiber, 10 parts of calcium carbonate whisker, 1 part of bauxite, 4 parts of vulcanized ladder, 4 parts of aluminum hydroxide, 3 parts of silicon bath soil, 5 parts of potassium feldspar , 0.5 parts of stearic acid, 0.7 parts of accelerator DM, 1 part of anti-aging agent BLE-W, 1.5 parts of sulfur, 3 parts of cashew nut shell oil friction powder, 5 parts of artificial graphite, 3 parts of foam iron powder, 5 parts of petroleum coke, boric acid 9 parts of magnesium whiskers, 3.3 parts of cuprous oxide.

[0044] Preparation:

[0045] 1. Weigh various raw materials according to the formula for use;

[0046] 2. Mi...

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Abstract

The invention relates to a winch brake pad and a manufacture method thereof and aims at providing a winch brake pad large in braking torque and high in bonding strength and providing a method which is simple in process, enables manufacture to be convenient and is low in cost. The technical scheme is that the winch brake pad comprises a ferrous metal framework and a friction material layer. The friction material layer comprises melamine modified phenolic resin, nitrile rubber, ceramic fiber, carbon fiber, aramid fiber, calcium carbonate whisker, alumina, antimony sulfide, aluminum hydroxide, diatomaceous earth, potash feldspar, stearic acid, accelerant DM, an anti-aging agent BLE-W, sulphur, cashew nut shell oil frictional powder, synthetic graphite, foam iron, petroleum coke, magnesium borate whisker and cuprous oxide. The manufacture method of the friction material layer of the winch brake pad includes: (1) weighing raw materials according to a formula; (2) mixing and stirring a part of raw materials; (3) mixing another part of the raw materials, adding the mixed raw materials in the step (2) for mixing; (4) compression molding; and (5) thermocuring.

Description

technical field [0001] The invention relates to a key component of a hoist brake and a manufacturing method thereof, in particular to a hoist brake pad and a manufacturing method thereof. Background technique [0002] Hoist is also called winch. It is a device that drives the reel and winds the rope by human or mechanical power to complete the traction work. Simple hoisting machinery for vertically lifting, horizontally or obliquely pulling heavy objects. There are two types of manual and electric. [0003] With the rapid development of the domestic hoist industry, hoist production technology is increasingly valued by our country, and its use is becoming more and more common. The rapid development of the hoist industry has driven the increase in demand for hoist brake pads. The market prospect of this product is broad. In recent years, the annual growth rate of hoist production in China has exceeded 20%. Due to the continuous expansion of industrial production scale and ...

Claims

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Application Information

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IPC IPC(8): F16D69/02B66D5/02C08L61/14C08L9/02C08K13/04C08K7/06C08K7/08C08K3/34C08K3/22C08K5/09C08K3/06C08K3/04C08K7/24B29C43/02B29C43/58B29C33/58
Inventor 章春华盛剑峰徐南汉章素莲
Owner 杭州汉乐科新材料科技有限公司
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