CN103939510B - A kind of nanometer superparamagnetism mine hoist brake shoe formula and preparation method thereof - Google Patents
A kind of nanometer superparamagnetism mine hoist brake shoe formula and preparation method thereof Download PDFInfo
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- CN103939510B CN103939510B CN201410183849.7A CN201410183849A CN103939510B CN 103939510 B CN103939510 B CN 103939510B CN 201410183849 A CN201410183849 A CN 201410183849A CN 103939510 B CN103939510 B CN 103939510B
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- brake shoe
- carbon
- mine hoist
- nanometer
- coated nano
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- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000009472 formulation Methods 0.000 title description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 25
- 239000000843 powder Substances 0.000 claims abstract description 21
- 239000002245 particle Substances 0.000 claims abstract description 18
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 8
- 244000226021 Anacardium occidentale Species 0.000 claims abstract description 7
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 7
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 7
- 229920000180 alkyd Polymers 0.000 claims abstract description 7
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 7
- 235000020226 cashew nut Nutrition 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010433 feldspar Substances 0.000 claims abstract description 7
- 239000003365 glass fiber Substances 0.000 claims abstract description 7
- 239000010439 graphite Substances 0.000 claims abstract description 7
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 7
- 239000010466 nut oil Substances 0.000 claims abstract description 7
- 229910000077 silane Inorganic materials 0.000 claims abstract description 7
- 239000010456 wollastonite Substances 0.000 claims abstract description 7
- 229910052882 wollastonite Inorganic materials 0.000 claims abstract description 7
- 239000010457 zeolite Substances 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 7
- 239000006185 dispersion Substances 0.000 claims description 6
- 229910000859 α-Fe Inorganic materials 0.000 claims description 5
- 239000002657 fibrous material Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 229910003145 α-Fe2O3 Inorganic materials 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 230000035699 permeability Effects 0.000 abstract description 2
- 238000004886 process control Methods 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000006249 magnetic particle Substances 0.000 abstract 1
- 238000010298 pulverizing process Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 4
- 239000002783 friction material Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005426 magnetic field effect Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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Abstract
Open a kind of nanometer superparamagnetism mine hoist brake shoe formula of the present invention and preparation method thereof, material prescription is composed of the following components: cashew nut oil modified alkyd resin, nitrile rubber, glass fibre, acicular wollastonite, aramid fiber, graphite, feldspar powder, zeolite, carbon-coated nano supperparamagnetic particles, Frication powder, barium sulfate, silane coupler, releasing agent.Preparation method includes pulverizing, batch mixing, hot-forming and heat treatment etc..Provide the benefit that: nanometer superparamagnetism mine hoist brake shoe table reveals stable tribological property and good heat resistance, well adapted to the extreme damped condition such as high speed, heavy duty.Nano magnetic particle improves heat resistance and the impact resistance of brake shoe, and makes brake shoe have higher relative permeability, and the magnetic field for drag friction process controls to provide basic material conditions.Nanometer superparamagnetism brake shoe is without magnetizing in advance, and braking procedure can be by the size of external magnetic field regulation magnetic with or without regulating control friction behavior.
Description
Technical field
The present invention relates to a kind of mining brake shoe material prescription, be specifically related to a kind of nanometer superparamagnetism mine hoist brake shoe
Formula and preparation method thereof.
Background technology
Along with the development of science and technology, power, speed and the load of various mining machineries equipment all improve constantly, at a high speed,
The condition of work of heavy duty makes the damped condition of mechanized equipment more and more badly, thus the tribological property to mining friction material
Propose higher technology requirement.
Traditional mine hoist brake shoe mostly uses asbestos friction material, owing to poor thermal conductivity, coefficient of friction are unstable,
The shortcomings such as brake oil is big, strong carcinogenicity, it is gradually replaced by asbestos-free friction material.But at present most of mines are carried
For rising machine brake shoe, under the extreme damped condition such as high speed, heavy duty, there is qualitative change in its structural constituent the most at short notice, from
And cause brake friction to lose efficacy, lead to serious accident, bring huge economic loss.
There is high-power electric appliance equipment in existing mine hoist brake shoe working environment so that it is unavoidably bear certain strong
The impact of degree electromagnetic field, and related data has shown that magnetic field is also one of important factor in order of tribology behavior, therefore should
Pay attention to the magnetic field impact on brake shoe friction and wear behavior.Additionally, due to magnetic field has good controllability, if magnetic can be made full use of
The field positive impact on drag friction behavior, and be applied to the control of the active to drag friction process, then it is remarkably improved
The brake efficiency of elevator friction brake and reliability, but owing to existing brake shoe material is nonmetal, nonferromugnetic material,
The magnetic field to drag friction process is made to control the most do not possess most basic material conditions and technical foundation.
Summary of the invention
The problem existed for above-mentioned prior art, the present invention provides a kind of nanometer superparamagnetism mine hoist brake shoe to join
Side and preparation method thereof, this brake shoe material thermal resistance is good, friction and wear behavior is stable, can preferably adapt to mine hoist at a high speed,
The extreme damped condition such as heavy duty, and there is new functional magnetic, can be the friction catch skill that development magnetic field controls in the future
Art establishes material base.
To achieve these goals, the technical solution used in the present invention is: a kind of nanometer superparamagnetism mine hoist lock
Watt formula, material prescription is made up of the component of following weight portion:
Cashew nut oil modified alkyd resin 10-15 part, nitrile rubber 3-5 part,
Glass fibre 15-20 part, acicular wollastonite 12-18 part,
Aramid fiber 3-8 part, graphite 2-4 part,
Feldspar powder 8-15 part, zeolite 5-10 part,
Frication powder 4-6 part, barium sulfate 10-15 part,
Carbon-coated nano supperparamagnetic particles 5-15 part, silane coupler 1-3 part,
Releasing agent 1-3 part；
Wherein carbon-coated nano supperparamagnetic particles is: carbon-coated nano Fe3O4, carbon coating alpha-Fe and carbon coating alpha-
Fe2O3In one or any combination.
The preparation method of a kind of nanometer superparamagnetism mine hoist brake shoe, comprises the following steps:
A., by all raw material material in drying baker, it is dried temperature 30 DEG C and processes 6 hours；
B. fibrous material is made chopped fiber；
C. lump material is processed through pulverizer, be ground into finely divided；
D. material is put in batch mixer and carry out mixed at high speed 20-30min；
E. carbon-coated nano supperparamagnetic particles is processed 30min-50min through ultrasonic wave dispersion；
F. the carbon-coated nano supperparamagnetic particles after ultrasonic wave dispersion being processed joins uses batch mixer in pulverulent material
Mixing 20-30min, uses mill melt blending；
G. batch mixing is ground in pulverizer fine powder, batch mixing powder is put in the mould on heat pressing forming machines,
Pressurize under the conditions of temperature 140 DEG C～180 DEG C 20MPa～25MPa, pressurize 20min after suppressing 3 times, the compressing rear demoulding；
It is heat-treated through sizing the most again, at a temperature of 160 DEG C～200 DEG C, is heat-treated insulation 6h, finally, deburring and making into
Product.
The invention has the beneficial effects as follows: under coordinating externally-applied magnetic field effect, nanometer superparamagnetism mine hoist brake shoe table
Reveal stable friction and wear behavior and good heat resistance, well adapt to the extreme damped condition such as high speed, heavy duty.Carbon bag
Cover nanometer supperparamagnetic particles brake shoe is modified, improve heat resistance and the impact strength of brake shoe, reduce wear rate.
Nanometer superparamagnetism mine hoist brake shoe has higher relative permeability and saturation magnetization, for drag friction process
Magnetic field controls to provide most basic material conditions.Utilize controllability and its positive impact on drag friction behavior in magnetic field,
Nanometer superparamagnetism mine hoist brake shoe is applied to the active to drag friction process control, friction brake can be realized
Brake efficiency significantly improves with reliability.Additionally, nanometer superparamagnetism mine hoist brake shoe is without magnetizing in advance, braked
Journey can be by the size of external magnetic field regulation magnetic with or without regulating control friction behavior.
Accompanying drawing explanation
Fig. 1 is preparation technology flow chart of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
This nanometer superparamagnetism mine hoist brake shoe is filled a prescription, and material prescription is made up of the component of following weight portion:
Modified resin Composition includes: cashew nut oil modified alkyd resin 10-15 part, nitrile rubber 3-5 part；
Composite fibre component includes: glass fibre 15-20 part, acicular wollastonite 12-18 part, aramid fiber 3-8 part；
Auxiliary material component includes: graphite 2-4 part, feldspar powder 8-15 part, zeolite 5-10 part, barium sulfate 10-15 part；
Mineral filler component includes: Frication powder 4-6 part, silane coupler 1-3 part, releasing agent 1-3 part；
Carbon-coated nano supperparamagnetic particles 5-15 part.
Wherein carbon-coated nano supperparamagnetic particles is: carbon-coated nano Fe3O4, carbon coating alpha-Fe and carbon coating alpha-
Fe2O3In one or any combination.
Embodiment one
Cashew nut oil modified alkyd resin 12 parts；Nitrile rubber 4 parts；18 parts of glass fibre；Acicular wollastonite 15 parts；Aramid fiber
Fiber 5 parts, 4 parts of graphite, feldspar powder 8 parts, 6 parts of zeolite, Frication powder 4 parts, 10 parts of barium sulfate, carbon-coated nano Fe3O4(16nm with
Under) 10 parts, silane coupler 2 parts, releasing agent 2 parts.
Embodiment two
Cashew nut oil modified alkyd resin 10 parts；Nitrile rubber 3 parts；15 parts of glass fibre；Acicular wollastonite 18 parts；Aramid fiber
Fiber 4 parts, 2 parts of graphite, feldspar powder 15 parts, 8 parts of zeolite, Frication powder 5 parts, 11 parts of barium sulfate, carbon below coating alpha-Fe(5nm) 5
Part, silane coupler 2 parts, releasing agent 2 parts.
Embodiment three
Cashew nut oil modified alkyd resin 15 parts；Nitrile rubber 5 parts；15 parts of glass fibre；Acicular wollastonite 12 parts；Aramid fiber
Fiber 8 parts, 2 parts of graphite, feldspar powder 8 parts, 5 parts of zeolite, Frication powder 4 parts, 10 parts of barium sulfate, carbon coating alpha-Fe2O3(20nm with
Under) 15 parts, silane coupler 3 parts, releasing agent 2 parts.
As shown in Figure 1: the preparation method of nanometer superparamagnetism mine hoist brake shoe, all raw material material is being dried
In case, it is dried temperature 30 DEG C and processes 6 hours；Fibrous material is made chopped fiber；Lump material is processed through pulverizer, powder
It is broken into finely divided；Material is put into batch mixer carries out mixed at high speed 20-30min；By carbon-coated nano supperparamagnetic particles
30min-50min is processed through ultrasonic wave dispersion；Carbon-coated nano supperparamagnetic particles after ultrasonic wave dispersion being processed joins
With batch mixer mixing 20-30min in pulverulent material, use mill melt blending；Batch mixing is ground in pulverizer fine powder
End, puts in the mould on heat pressing forming machines by batch mixing powder, under the conditions of temperature 140 DEG C～180 DEG C pressurize 20MPa～
25MPa, pressurize 20min after suppressing 3 times, the compressing rear demoulding；It is heat-treated through sizing again, heat at a temperature of 160 DEG C～200 DEG C
Process insulation 6h, finally, deburring and make finished product.
The nanometer superparamagnetism brake shoe three kinds of embodiments prepared carries out constant voltage constant speed respectively on friction criterion testing machine
Test, pressure is 0.98MPa, and speed is 16.7m/s, respectively temperature be 100 DEG C, 150 DEG C, 200 DEG C, 250 DEG C and from 250
DEG C drop to carry out under 100 DEG C of five temperature ranges friction test and measure coefficient of friction and wear rate, and to its rushing at room temperature
Hit intensity, hardness carry out testing that (test board material is 16Mn steel plate, and surface roughness Ra value should be less than 1.6 μm, and its hardness is
150～160HB).The present invention is relevant with reference to national standard JB/T 3721-1999's " disc-brake shoe of mine hoist "
Technical specification, by experimental test, the impact strength under coefficient of friction, wear rate, room temperature and hardness result are as shown in the table.
Embodiment one prepares brake shoe frictional behaviour test table
Embodiment two prepares brake shoe frictional behaviour test table
Embodiment three prepares brake shoe frictional behaviour test table
From above three table it will be seen that the mine hoisting prepared of three of the above embodiment and brake shoe all meet and be higher than
National standard, and coefficient of friction performance is stable, and wear rate is all in low level, relative to embodiment two and embodiment three, implements
Example one coefficient of friction is relatively big, and wear rate is relatively low, and combination property is best.
Owing to the conventional friction polishing machine of embodiment one brake shoe is preferable, brake shoe prepared by embodiment one is placed on 10KA/m
Magnetostatic field in, other experimental conditions are identical with above-mentioned test, test with fixed speed fricting test machine, result such as following table institute
Showing, result shows: relative to being not added with the identical brake shoe in magnetic field, the friction coefficient of brake shoe under magnetic field is higher and wear rate is relatively low, combines
Conjunction friction and wear behavior is preferable.Thus understand magnetic field and the friction and wear behavior of superparamagnetic brake shoe is created favorable influence.
Embodiment one brake shoe magnetic field friction and wear behavior test table
Claims (3)
1. a nanometer superparamagnetism mine hoist brake shoe, it is characterised in that material prescription is by the component group of following weight portion
Become:
Cashew nut oil modified alkyd resin 12-15 part, nitrile rubber 3-4 part,
Glass fibre 18-20 part, acicular wollastonite 12-18 part,
Aramid fiber 4-5 part, graphite 2-4 part,
Feldspar powder 8 parts, zeolite 5-10 part,
Frication powder 5-6 part, barium sulfate 11-15 part,
Carbon-coated nano supperparamagnetic particles 5-15 part, silane coupler 1-3 part,
Releasing agent 1-3 part；
Wherein carbon-coated nano supperparamagnetic particles is: carbon-coated nano Fe3O4, carbon coating alpha-Fe and carbon coating alpha-Fe2O3In
One or any combination.
A kind of nanometer superparamagnetism mine hoist brake shoe the most according to claim 1, it is characterised in that described carbon bag
Cover nanometer Fe3O4Particle diameter be below 16nm, the particle diameter of carbon coating alpha-Fe be below 5nm, carbon coating alpha-Fe2O3Particle diameter be
Below 20nm.
3. preparing the preparation method of a kind of nanometer superparamagnetism mine hoist brake shoe as claimed in claim 1, its feature exists
In, comprise the following steps:
A., by all raw material in drying baker, it is dried temperature 30 DEG C and processes 6 hours；
B. fibrous material is made chopped fiber；
C. lump material is processed through pulverizer, be ground into finely divided；
D. other material in addition to carbon-coated nano supperparamagnetic particles is put into and batch mixer carries out mixed at high speed 20-
30min；
E. carbon-coated nano supperparamagnetic particles is processed 30min-50min through ultrasonic wave dispersion；
F. the carbon-coated nano supperparamagnetic particles after ultrasonic wave dispersion being processed joins the pulverulent material after processing in step D
Middle batch mixer mixing 20-30min, uses mill melt blending；
G. batch mixing is ground in pulverizer fine powder, batch mixing powder is put in the mould on heat pressing forming machines, in temperature
Pressurize under the conditions of spending 140 DEG C～180 DEG C 20MPa～25MPa, pressurize 20min after suppressing 3 times, the compressing rear demoulding；
It is heat-treated through sizing the most again, at a temperature of 160 DEG C～200 DEG C, is heat-treated insulation 6h, finally, deburring and make finished product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410183849.7A CN103939510B (en) | 2014-05-04 | 2014-05-04 | A kind of nanometer superparamagnetism mine hoist brake shoe formula and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410183849.7A CN103939510B (en) | 2014-05-04 | 2014-05-04 | A kind of nanometer superparamagnetism mine hoist brake shoe formula and preparation method thereof |
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| Publication Number | Publication Date |
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| CN103939510A CN103939510A (en) | 2014-07-23 |
| CN103939510B true CN103939510B (en) | 2016-09-07 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03181529A (en) * | 1989-12-08 | 1991-08-07 | Sumitomo Electric Ind Ltd | Frictionizing material composition |
| JPH0885781A (en) * | 1994-09-16 | 1996-04-02 | Sumitomo Electric Ind Ltd | Friction material for brake |
| FR2747753A1 (en) * | 1996-04-23 | 1997-10-24 | Akebono Brake Ind | Non-magnet friction material for brake pads |
| CN1664401A (en) * | 2005-03-09 | 2005-09-07 | 中信重型机械公司 | Method for preparing disc-brake shoe of mine hoist |
| CN101016925A (en) * | 2006-02-07 | 2007-08-15 | 铁道科学研究院金属及化学研究所 | Locomotive brake shoe and manufacturing technique thereof |
| CN102134397A (en) * | 2011-02-22 | 2011-07-27 | 大连交通大学 | Synthetic brake shoe for urban railway vehicle and preparation method thereof |
-
2014
- 2014-05-04 CN CN201410183849.7A patent/CN103939510B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03181529A (en) * | 1989-12-08 | 1991-08-07 | Sumitomo Electric Ind Ltd | Frictionizing material composition |
| JPH0885781A (en) * | 1994-09-16 | 1996-04-02 | Sumitomo Electric Ind Ltd | Friction material for brake |
| FR2747753A1 (en) * | 1996-04-23 | 1997-10-24 | Akebono Brake Ind | Non-magnet friction material for brake pads |
| CN1664401A (en) * | 2005-03-09 | 2005-09-07 | 中信重型机械公司 | Method for preparing disc-brake shoe of mine hoist |
| CN101016925A (en) * | 2006-02-07 | 2007-08-15 | 铁道科学研究院金属及化学研究所 | Locomotive brake shoe and manufacturing technique thereof |
| CN102134397A (en) * | 2011-02-22 | 2011-07-27 | 大连交通大学 | Synthetic brake shoe for urban railway vehicle and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 纳米Fe3O4与纳米SrO•6Fe2O3填充丁腈橡胶复合材料的摩擦磨损性能比较;王其磊，杨逢瑜，杨倩等;《摩擦学学报》;20100602;第30卷(第2期);全文 * |
| 纳米Fe3O4磁性复合丁腈橡胶用做中、高压轴封的研究;何世权，杨逢瑜，安晓英，姜明亮，孟静华;《兰州理工大学学报》;20080624;第34卷(第2期);正文1-2段 * |
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