CN100389093C

CN100389093C - Metal-free ceramic-type brake plate and processing method

Info

Publication number: CN100389093C
Application number: CNB2006100686312A
Authority: CN
Inventors: 杜亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-31
Filing date: 2006-08-31
Publication date: 2008-05-21
Anticipated expiration: 2026-08-31
Also published as: CN1919798A

Abstract

The invention discloses a metalless ceramic braking piece, which comprises the following parts: 3-15% bleached ball, 1 -6% composite fiber, 1-9% fiber brucite, 1-15% mica, 5-10% wood fiber, 2-3% fibrilia, 10-30% butyronitrile powder resin, 1-15% graphite, 0.1-5% hexamethylenetetramine, 5-20% barite, 1-10% light calcium, 1-10% kaolin, 3-12% argil and 1-10% toothpaste-grade aluminum hydroxide.

Description

Metal-free ceramic-type brake plate and working method

One, technical field

The present invention relates to a kind of transportation machinery, the used friction materials goods of Working machine friction stopping device, specifically a kind of metal-free ceramic-type brake plate and working method.

Two, background technology

At present, be used for braking and gearing friction sheet (brake facing) and mainly contain three classes: asbestos based friction plate, semi-metallic lining and metal based sintered friction plate, this three classes friction plate also exists certain defective in application.1. asbestos based friction plate heat is lost seriously, the braking of incompatibility vehicle high-speed cruising, and especially asbestos are the healthy of a kind of carcinogen effect people; 2. metal based sintered friction plate price height, fragility is big, friction temperature is high, and noise is big, and is bigger to the wearing and tearing of antithesis; 3. semi-metallic lining can only be used for disc brake, and is inapplicable to large-scale heavy duty operation and carrier vehicle, and no widespread use is worth.The applicant has applied for ceramic mould brake facing and working method for this reason, application number is 200510044055.3, in filling a prescription, contain a certain amount of aluminum oxide, hollow steel ball, Stainless Steel Powder through evidence, hardness is bigger, to the defective that the antithesis brake flange has high temperature to skid, scratch, influence the work-ing life of antithesis brake flange.

Three, summary of the invention

The purpose of this invention is to provide a kind of metal-free ceramic-type brake plate and working method, solve the problem that above-mentioned four kinds of brake facings exist, make that a kind of proportion is little, intensity is high, stable friction factor, heat move back little, noise is little, the metal-free ceramic-type brake plate of no flue dust, sparkless, environmentally safe, long service life, applied range.

Technical scheme of the present invention realizes in the following manner:

The present invention is by floating pearl, conjugated fibre, nemalite, mica, xylon, flaxen fiber, the powder nbr resin, graphite, urotropine, barite, light weight calcium, kaolin, potter's clay and toothpaste level aluminium hydroxide are formed, and the mass percent of each component is: float pearl 3-15%, conjugated fibre 1-6%, nemalite 1-9%, mica 1-15%, xylon 5-10%, flaxen fiber 2-3%, powder nbr resin 10-30%, graphite 1-15%, urotropine 0.1-5%, barite 5-20%, light weight calcium 1-10%, kaolin 1-10%, potter's clay 3-12%, toothpaste level aluminium hydroxide 1-10%.

Preparation method of the present invention will be for will float pearl 3-15%, conjugated fibre 1-6%, nemalite 1-9%, mica 1-15%, xylon 5-10%, flaxen fiber 2-3%, powder nbr resin 10-30%, graphite 1-15%, urotropine 0.1-5%, barite 5-20%, light weight calcium 1-10%, kaolin 1-10%, potter's clay 3-12%, toothpaste level aluminium hydroxide 1-10%, be placed in the homogenizer, blending stirs powdered together, taking-up is placed in the chip mould or disc type mould on the mould bed, the mould bed is placed on mold pressing on the die press, 10-18Mpa simultaneously pressurizes, heat 120 ℃-190 ℃, kept 10～30 minutes, release stops temperature, take out mould, pour out brake facing, take polish on the grinding machine product.

Compared with the prior art the present invention has the following advantages:

1, little, the long service life of little, not water funk, the stable friction factor of proportion, heat fading, environment is not polluted.

2, do not damage brake drum, be particularly useful for rig, heavy vehicle and extraordinary mining heavy-duty machinery equipment brake(-holder) block and clutch surface.

3, under various harsh industrial and minerals, do not have flue dust, sparkless is the characteristics that the present invention has, being used to drill the drilling well of oil gas well and the braking control of workover rig has only road part.

4, noiselessness is applicable to and makes urban public transport vehicle brake sheet, can significantly reduce the pollution of city noise, is the requisite of improving urban environment.

5, friction materials of the present invention has the characteristic of pottery, is applicable to the friction catch liner of making the high-speed transit vehicle, and brake steadily has progressive sense during braking, have the braking effect of part A BS.

6, one-step mould hot briquetting of the present invention need not handled with compacting of thermoforming press and second heating device.

Four, description of drawings

No accompanying drawing.

Five, embodiment

For further disclosing technical scheme of the present invention, elaborate below by specific embodiment:

The specific embodiment of the present invention is:

Example 1, making disc brake pad

To float pearl, conjugated fibre, sepiolite, mica, xylon, flaxen fiber, the powder nbr resin, graphite, urotropine, barite, light weight calcium, kaolin, potter's clay, zinc oxide and fire retardant by the quality percentage are: float pearl 15%, conjugated fibre 6%, sepiolite 3%, mica 10%, xylon 5%, flaxen fiber 2%, resin 15%, graphite 6%, urotropine 2%, barite 11%, light weight calcium 3%, kaolin 4%, potter's clay 8%, toothpaste level aluminium hydroxide 2%, be placed on the interior blending of homogenizer and stir together, powdered taking-up stirs.Powder is put in the mould piece of the disc brake pad on the mould bed, the mould bed is placed on the die press, the while pressurized, heated, pressure adds 16Mpa, and temperature adds 150 ℃ (charged heating units on the mould bed), keeps 20 minutes, release stops temperature, take out the mould piece, pour out friction plate, take polish on the grinding machine product.

Example 2, making plate friction sheet

To float pearl, conjugated fibre, sepiolite, mica, xylon, flaxen fiber, the powder nbr resin, graphite, urotropine, barite, light weight calcium, kaolin, potter's clay, fire retardant by the quality percentage is: float pearl 10%, conjugated fibre 2%, sepiolite 8%, mica 10%, xylon 2%, flaxen fiber 3%, powder nbr resin 14%, graphite 8%, urotropine 1%, barite 8%, light weight calcium 5%, kaolin 2%, potter's clay 4%, toothpaste level aluminium hydroxide 3%, be placed in the homogenizer and admix together, stir, powdered taking-up stirs, powder is put in the mould piece of the piece formula friction plate on the mould bed, the mould bed is placed on the die press, the while pressurized, heated, pressure adds 180Mpa, temperature adds 170 ℃ (charged heating units on the mould bed), kept 25 minutes, release stops temperature, take out the mould piece, pour out friction plate, take polish on the grinding machine product.

Claims

1. metal-free ceramic-type brake plate, by floating pearl, conjugated fibre, nemalite, mica, xylon, flaxen fiber, the powder nbr resin, graphite, urotropine, barite, light weight calcium, kaolin, potter's clay and toothpaste level aluminium hydroxide are formed, and the mass percent of each component is: float pearl 3-15%, conjugated fibre 1-6%, nemalite 1-9%, mica 1-15%, xylon 5-10%, flaxen fiber 2-3%, powder nbr resin 10-30%, graphite 1-15%, urotropine 0.1-5%, barite 5-20%, light weight calcium 1-10%, kaolin 1-10%, potter's clay 3-12%, toothpaste level aluminium hydroxide 1-10%.

2. the preparation method of a metal-free ceramic-type brake plate, to float pearl 3-15%, conjugated fibre 1-6%, nemalite 1-9%, mica 1-15%, xylon 5-10%, flaxen fiber 2-3%, powder nbr resin 10-30%, graphite 1-15%, urotropine 0.1-5%, barite 5-20%, light weight calcium 1-10%, kaolin 1-10%, potter's clay 3-12%, toothpaste level aluminium hydroxide 1-10%, be placed in the homogenizer, blending stirs powdered together, taking-up is placed in the chip mould or disc type mould on the mould bed, the mould bed is placed on mold pressing on the die press, 10-18Mpa simultaneously pressurizes, heat 120 ℃-190 ℃, kept 10～30 minutes, release stops temperature, take out mould, pour out brake facing, take polish on the grinding machine product.