CN109749708A - A kind of preparation method of metal friction composite material - Google Patents
A kind of preparation method of metal friction composite material Download PDFInfo
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- CN109749708A CN109749708A CN201811597250.2A CN201811597250A CN109749708A CN 109749708 A CN109749708 A CN 109749708A CN 201811597250 A CN201811597250 A CN 201811597250A CN 109749708 A CN109749708 A CN 109749708A
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Abstract
The present invention provides a kind of preparation methods of metal friction composite material, and steps are as follows: crab shell being handled so modified that be modified crab shell powder；Carbamide, copper powder and dehydrated alcohol are mixed, compacting in hydraulic press mold is placed in；Sintering；Ball milling is cleaned and dried；Powders A is etched to obtain with microwave plasma CVD device；Gamma-aminopropyl-triethoxy-silane, γ-mercaptopropyl trimethoxysilane, glacial acetic acid, acetone and distilled water are mixed；Plus silicon carbide whisker stirs ultrasonic vibration；Modified silicon carbide whisker is dried to obtain in filtering；It will modified crab shell powder, powders A, modified silicon carbide whisker, ultra-high molecular weight polyethylene, cumyl peroxide and n-butyl stearate mixing and ball milling；It is fitted into cold moudling in mold；Demoulding, is sintered to obtain the final product.Material prepared by the method for the present invention has good mechanical property, and Brinell hardness is moderate, will not damage machinery equipment itself in the application, also shows good rub resistance, and friction stability is high.
Description
Technical field
The present invention relates to a kind of preparation methods of metal friction composite material.
Background technique
Friction material is a kind of for dynamic power machine, and the component material of braking and transmission agency is executed by rubbing action
Material, in terms of the braking and various engineering machinery that are used for vehicle, such as friction press, electric hoist and supersonic motor.Ultrasound
Wave motor is mainly made of stator piezoelectric ceramics and friction rotor material etc., using the inverse piezoelectric effect of piezoelectric ceramics, by turning
Contact friction-driven rotor rotation of the son with stator, it is in fields such as aerospace, precision positioning and microrobots at present
It is widely used.And critical material one of of the friction material as supersonic motor, the quality of performance directly determine
The success or failure of motor.General friction material of ultrasonic motor should have the following conditions: suitable coefficient of friction, wearability is high, makes an uproar
Sound is low, stable friction performance, has hardness appropriate and can carry out Precision Machining etc., but the performance of friction material in practice and reaches
Less than such standard, therefore, the performance of friction material is constantly improved, research and development material synthesis technology has the development of every profession and trade
There is important meaning.
Summary of the invention
Technical problems to be solved:
A kind of preparation method of metal friction composite material is provided, prepared metal friction composite material has good
Mechanical property, Brinell hardness is moderate, will not damage machinery equipment itself in the application, also shows good rub resistance, rubs
It is high to wipe stability.
Technical solution:
The present invention provides a kind of preparation method of metal friction composite material, ingredient by weight, including following step
It is rapid:
(1) crab shell is cleaned, dries pulverizing, is milled to 300 mesh through airflow milling；
(2) 3-4d is impregnated with the NaOH solution of 4wt%, ball milling 6-8h, is dried afterwards wash with distilled water in the ball mill；
(3) it is equably laid on the ground electrode in low-temperature plasma processing unit, in supply frequency 20-30kHz, work
10-15min is handled under the conditions of voltage 20kV, discharge power 80-100W, obtains modified crab shell powder；
(4) 5-10 parts of carbamides, 50-70 parts of copper powders and 5-7 parts of dehydrated alcohols are mixed evenly, are placed in hydraulic press mould
In tool, suppressed at room temperature；
(5) surface scale is removed after taking out, is placed in porcelain Noah's ark, is put into tube-type atmosphere furnace at 600-650 DEG C of temperature
Under be sintered；
(6) ball milling 10-20h after taking out, ultrasonic cleaning 3-4 times are put into vacuum oven dry；
(7) it is put into microwave plasma CVD device and performs etching to obtain powders A, wherein use pure
The hydrogen plasma of hydrogen excitation；
(8) by gamma-aminopropyl-triethoxy-silane, γ-mercaptopropyl trimethoxysilane, glacial acetic acid, acetone and distilled water
40-60min is mixed；
(9) silicon carbide whisker is added, is put into water-bath, ultrasonic vibration 30-40min is stirred at 60-70 DEG C of temperature；
(10) it filters, is put into baking oven and dries to obtain modified silicon carbide whisker；
(11) by 3-5 parts of modified crab shell powders, 6-10 parts of powders As, 5-8 parts of modified silicon carbide whiskers, 60-80 parts of supra polymers
Weight northylen, 5-10 part cumyl peroxide and 2-3 parts of n-butyl stearate mixing, are added in ball mill in revolving speed 300-
Ball milling 4-5h under 400r/min；
(12) it is fitted into mold, cold moudling, pressure 200-300MPa, compression rate 5MPa/min, pressure is kept
Time is 5-10min；
(13) it demoulds, is sintered to obtain the final product, be that 40 DEG C/h is warming up to 210-220 DEG C with heating rate, continue with 30 DEG C/h
Heating rate is warming up to 270-280 DEG C, soaking time 3-4h.
Further, the silicon carbide whisker diameter is 100-200nm, and length is 20-50 μm.
Further, supply frequency is 25kHz, discharge power 90W in the step (3).
Further, pressing speed is 17-19mm/min, dwell time 10min in the step (4).
Further, temperature is 850-900 DEG C, air pressure 10-12kPa, power 3-4kW in the step (7).
The utility model has the advantages that
1. crab shell powder is through after the processing of low-temperature plasma processing unit, surface forms a large amount of pore and irregular bumps
Face, surface area increase, and frictional property also improves.
2. after the reacted processing of copper powder, surface area increases, a large amount of aperture is formed, it is heavy through microwave plasma chemical gas phase
After etching in product device, surface roughness is greatly improved, and can effectively improve friction effect.
3. the metal friction composite material of the method for the present invention preparation has good mechanical property, impact strength is reachable
82.9J/cm2, Brinell hardness is relatively mild, between 67.3-67.8HB, machinery equipment itself will not be damaged in the application,
Also good rub resistance is shown, coefficient of friction reaches as high as 0.56, and friction stability is high.
Specific embodiment
The following examples can make those skilled in the art that the present invention be more fully understood, but not limit this in any way
Invention.
Embodiment 1
A kind of preparation method of metal friction composite material, ingredient is by weight, comprising the following steps:
(1) crab shell is cleaned, dries pulverizing, is milled to 300 mesh through airflow milling；
(2) 3d is impregnated with the NaOH solution of 4wt%, ball milling 6h, is dried afterwards wash with distilled water in the ball mill；
(3) it is equably laid on the ground electrode in low-temperature plasma processing unit, in supply frequency 20kHz, work electricity
10min is handled under the conditions of pressure 20kV, discharge power 80W, obtains modified crab shell powder；
(4) 5 parts of carbamides, 50 parts of copper powders and 5 parts of dehydrated alcohols are mixed evenly, are placed in hydraulic press mold,
It is suppressed at room temperature, wherein pressing speed 17mm/min, dwell time 10min；
(5) take out after remove surface scale, be placed in porcelain Noah's ark, be put into tube-type atmosphere furnace at 600 DEG C of temperature into
Row sintering；
(6) ball milling 10h after taking out ultrasonic cleaning 3 times, is put into vacuum oven dry；
(7) it is put into microwave plasma CVD device and performs etching to obtain powders A, wherein use pure
The hydrogen plasma of hydrogen excitation, temperature are 850 DEG C, air pressure 10kPa, power 3kW；
(8) by gamma-aminopropyl-triethoxy-silane, γ-mercaptopropyl trimethoxysilane, glacial acetic acid, acetone and distilled water
40min is mixed；
(9) silicon carbide whisker is added, is put into water-bath, ultrasonic vibration 30min is stirred under temperature 60 C；
(10) it filters, is put into baking oven and dries to obtain modified silicon carbide whisker；
(11) by 3 parts of modified crab shell powders, 6 parts of powders As, 5 parts of modified silicon carbide whiskers, 60 parts of ultra-high molecular weight polyethylenes, 5
Part cumyl peroxide and 2 parts of n-butyl stearates mixing, are added in ball mill the ball milling 4h at revolving speed 300r/min；
(12) it is fitted into mold, cold moudling, pressure 200MPa, compression rate 5MPa/min, pressure hold time
For 5min；
(13) it demoulds, is sintered to obtain the final product, be that 40 DEG C/h is warming up to 210 DEG C with heating rate, continue with 30 DEG C/h heating
Rate is warming up to 270 DEG C, soaking time 3h.
Embodiment 2
A kind of preparation method of metal friction composite material, ingredient is by weight, comprising the following steps:
(1) crab shell is cleaned, dries pulverizing, is milled to 300 mesh through airflow milling；
(2) 3.5d is impregnated with the NaOH solution of 4wt%, ball milling 6.5h, is dried afterwards wash with distilled water in the ball mill；
(3) it is equably laid on the ground electrode in low-temperature plasma processing unit, in supply frequency 23kHz, work electricity
12min is handled under the conditions of pressure 20kV, discharge power 85W, obtains modified crab shell powder；
(4) 7 parts of carbamides, 55 parts of copper powders and 5.5 parts of dehydrated alcohols are mixed evenly, are placed in hydraulic press mold,
It is suppressed at room temperature, wherein pressing speed 18mm/min, dwell time 10min；
(5) take out after remove surface scale, be placed in porcelain Noah's ark, be put into tube-type atmosphere furnace at 620 DEG C of temperature into
Row sintering；
(6) ball milling 15h after taking out ultrasonic cleaning 3 times, is put into vacuum oven dry；
(7) it is put into microwave plasma CVD device and performs etching to obtain powders A, wherein use pure
The hydrogen plasma of hydrogen excitation, temperature are 870 DEG C, air pressure 11kPa, power 3.5kW；
(8) by gamma-aminopropyl-triethoxy-silane, γ-mercaptopropyl trimethoxysilane, glacial acetic acid, acetone and distilled water
45min is mixed；
(9) silicon carbide whisker is added, is put into water-bath, ultrasonic vibration 35min is stirred at 65 DEG C of temperature；
(10) it filters, is put into baking oven and dries to obtain modified silicon carbide whisker；
(11) by 3.5 parts of modified crab shell powders, 7 parts of powders As, 6 parts of modified silicon carbide whiskers, 65 parts of superhigh molecular weight polyethylenes
Alkene, 7 parts of cumyl peroxides and 2.5 parts of n-butyl stearate mixing, are added in ball mill the ball milling at revolving speed 350r/min
4.5h；
(12) it is fitted into mold, cold moudling, pressure 220MPa, compression rate 5MPa/min, pressure hold time
For 7min；
(13) it demoulds, is sintered to obtain the final product, be that 40 DEG C/h is warming up to 215 DEG C with heating rate, continue with 30 DEG C/h heating
Rate is warming up to 275 DEG C, soaking time 3.5h.
Embodiment 3
A kind of preparation method of metal friction composite material, ingredient is by weight, comprising the following steps:
(1) crab shell is cleaned, dries pulverizing, is milled to 300 mesh through airflow milling；
(2) 3.5d is impregnated with the NaOH solution of 4wt%, ball milling 7h, is dried afterwards wash with distilled water in the ball mill；
(3) it is equably laid on the ground electrode in low-temperature plasma processing unit, in supply frequency 25kHz, work electricity
13min is handled under the conditions of pressure 20kV, discharge power 90W, obtains modified crab shell powder；
(4) 8 parts of carbamides, 60 parts of copper powders and 6 parts of dehydrated alcohols are mixed evenly, are placed in hydraulic press mold,
It is suppressed at room temperature, wherein pressing speed 18mm/min, dwell time 10min；
(5) take out after remove surface scale, be placed in porcelain Noah's ark, be put into tube-type atmosphere furnace at 630 DEG C of temperature into
Row sintering；
(6) ball milling 15h after taking out ultrasonic cleaning 4 times, is put into vacuum oven dry；
(7) it is put into microwave plasma CVD device and performs etching to obtain powders A, wherein use pure
The hydrogen plasma of hydrogen excitation, temperature are 880 DEG C, air pressure 11kPa, power 3.5kW；
(8) by gamma-aminopropyl-triethoxy-silane, γ-mercaptopropyl trimethoxysilane, glacial acetic acid, acetone and distilled water
50min is mixed；
(9) silicon carbide whisker is added, is put into water-bath, ultrasonic vibration 35min is stirred at 65 DEG C of temperature；
(10) it filters, is put into baking oven and dries to obtain modified silicon carbide whisker；
(11) by 4 parts of modified crab shell powders, 8 parts of powders As, 6.5 parts of modified silicon carbide whiskers, 70 parts of superhigh molecular weight polyethylenes
Alkene, 8 parts of cumyl peroxides and 2.5 parts of n-butyl stearate mixing, are added in ball mill the ball milling at revolving speed 350r/min
4.5h；
(12) it is fitted into mold, cold moudling, pressure 250MPa, compression rate 5MPa/min, pressure hold time
For 8min；
(13) it demoulds, is sintered to obtain the final product, be that 40 DEG C/h is warming up to 215 DEG C with heating rate, continue with 30 DEG C/h heating
Rate is warming up to 275 DEG C, soaking time 3.5h.
Embodiment 4
A kind of preparation method of metal friction composite material, ingredient is by weight, comprising the following steps:
(1) crab shell is cleaned, dries pulverizing, is milled to 300 mesh through airflow milling；
(2) 3.5d is impregnated with the NaOH solution of 4wt%, ball milling 7h, is dried afterwards wash with distilled water in the ball mill；
(3) it is equably laid on the ground electrode in low-temperature plasma processing unit, in supply frequency 28kHz, work electricity
14min is handled under the conditions of pressure 20kV, discharge power 95W, obtains modified crab shell powder；
(4) 9 parts of carbamides, 65 parts of copper powders and 6 parts of dehydrated alcohols are mixed evenly, are placed in hydraulic press mold,
It is suppressed at room temperature, wherein pressing speed 18mm/min, dwell time 10min；
(5) take out after remove surface scale, be placed in porcelain Noah's ark, be put into tube-type atmosphere furnace at 640 DEG C of temperature into
Row sintering；
(6) ball milling 18h after taking out ultrasonic cleaning 4 times, is put into vacuum oven dry；
(7) it is put into microwave plasma CVD device and performs etching to obtain powders A, wherein use pure
The hydrogen plasma of hydrogen excitation, temperature are 890 DEG C, air pressure 11kPa, power 3.5kW；
(8) by gamma-aminopropyl-triethoxy-silane, γ-mercaptopropyl trimethoxysilane, glacial acetic acid, acetone and distilled water
55min is mixed；
(9) silicon carbide whisker is added, is put into water-bath, ultrasonic vibration 35min is stirred at 65 DEG C of temperature；
(10) it filters, is put into baking oven and dries to obtain modified silicon carbide whisker；
(11) by 4.5 parts of modified crab shell powders, 9 parts of powders As, 7 parts of modified silicon carbide whiskers, 75 parts of superhigh molecular weight polyethylenes
Alkene, 9 parts of cumyl peroxides and 2.5 parts of n-butyl stearate mixing, are added in ball mill the ball milling at revolving speed 380r/min
4.5h；
(12) it is fitted into mold, cold moudling, pressure 280MPa, compression rate 5MPa/min, pressure hold time
For 9min；
(13) it demoulds, is sintered to obtain the final product, be that 40 DEG C/h is warming up to 215 DEG C with heating rate, continue with 30 DEG C/h heating
Rate is warming up to 275 DEG C, soaking time 3.5h.
Embodiment 5
A kind of preparation method of metal friction composite material, ingredient is by weight, comprising the following steps:
(1) crab shell is cleaned, dries pulverizing, is milled to 300 mesh through airflow milling；
(2) 4d is impregnated with the NaOH solution of 4wt%, ball milling 8h, is dried afterwards wash with distilled water in the ball mill；
(3) it is equably laid on the ground electrode in low-temperature plasma processing unit, in supply frequency 30kHz, work electricity
15min is handled under the conditions of pressure 20kV, discharge power 100W, obtains modified crab shell powder；
(4) 10 parts of carbamides, 70 parts of copper powders and 7 parts of dehydrated alcohols are mixed evenly, are placed in hydraulic press mold,
It is suppressed at room temperature, wherein pressing speed 19mm/min, dwell time 10min；
(5) take out after remove surface scale, be placed in porcelain Noah's ark, be put into tube-type atmosphere furnace at 650 DEG C of temperature into
Row sintering；
(6) ball milling 20h after taking out ultrasonic cleaning 4 times, is put into vacuum oven dry；
(7) it is put into microwave plasma CVD device and performs etching to obtain powders A, wherein use pure
The hydrogen plasma of hydrogen excitation, temperature are 900 DEG C, air pressure 12kPa, power 4kW；
(8) by gamma-aminopropyl-triethoxy-silane, γ-mercaptopropyl trimethoxysilane, glacial acetic acid, acetone and distilled water
60min is mixed；
(9) silicon carbide whisker is added, is put into water-bath, ultrasonic vibration 40min is stirred under temperature 70 C；
(10) it filters, is put into baking oven and dries to obtain modified silicon carbide whisker；
(11) by 5 parts of modified crab shell powders, 10 parts of powders As, 8 parts of modified silicon carbide whiskers, 80 portions of ultra-high molecular weight polyethylenes,
10 parts of cumyl peroxides and 3 parts of n-butyl stearate mixing, are added in ball mill the ball milling 5h at revolving speed 400r/min；
(12) it is fitted into mold, cold moudling, pressure 300MPa, compression rate 5MPa/min, pressure hold time
For 10min；
(13) it demoulds, is sintered to obtain the final product, be that 40 DEG C/h is warming up to 220 DEG C with heating rate, continue with 30 DEG C/h heating
Rate is warming up to 280 DEG C, soaking time 4h.
Impact strength is referring to GB/T 33835-2017 friction material impact strength test method, using impact strength test
Machine is measured.
Brinell hardness is measured referring to GB/T 231.1-2009.
Coefficient of friction is measured sample using type friction wear testing machine.
The partial properties index of 1 metal friction composite material of table
The metal friction composite material of the method for the present invention preparation has good mechanical property, and impact strength is reachable
82.9J/cm2, Brinell hardness is moderate, between 67.3-67.8HB, will not damage machinery equipment itself in the application, also table
Reveal good rub resistance, coefficient of friction reaches as high as 0.56, and friction stability is high.
Claims (5)
1. a kind of preparation method of metal friction composite material, it is characterised in that: ingredient is by weight, comprising the following steps:
(1) crab shell is cleaned, dries pulverizing, is milled to 300 mesh through airflow milling；
(2) 3-4d is impregnated with the NaOH solution of 4wt%, ball milling 6-8h, is dried afterwards wash with distilled water in the ball mill；
(3) it is equably laid on the ground electrode in low-temperature plasma processing unit, in supply frequency 20-30kHz, operating voltage
10-15min is handled under the conditions of 20kV, discharge power 80-100W, obtains modified crab shell powder；
(4) 5-10 parts of carbamides, 50-70 parts of copper powders and 5-7 parts of dehydrated alcohols are mixed evenly, are placed in hydraulic press mold
It is interior, it is suppressed at room temperature；
(5) take out after remove surface scale, be placed in porcelain Noah's ark, be put into tube-type atmosphere furnace at 600-650 DEG C of temperature into
Row sintering；
(6) ball milling 10-20h after taking out, ultrasonic cleaning 3-4 times are put into vacuum oven dry；
(7) it is put into microwave plasma CVD device and performs etching to obtain powders A, wherein use pure hydrogen
The hydrogen plasma of excitation；
(8) gamma-aminopropyl-triethoxy-silane, γ-mercaptopropyl trimethoxysilane, glacial acetic acid, acetone and distilled water are mixed
Stir 40-60min；
(9) silicon carbide whisker is added, is put into water-bath, ultrasonic vibration 30-40min is stirred at 60-70 DEG C of temperature；
(10) it filters, is put into baking oven and dries to obtain modified silicon carbide whisker；
(11) 3-5 parts of modified crab shell powders, 6-10 parts of powders As, 5-8 parts of modified silicon carbide whiskers, 60-80 parts of super high molecular weights are gathered
Ethylene, 5-10 part cumyl peroxide and 2-3 parts of n-butyl stearate mixing, are added in ball mill in revolving speed 300-400r/
Ball milling 4-5h under min；
(12) it is fitted into mold, cold moudling, pressure 200-300MPa, compression rate 5MPa/min, pressure hold time
For 5-10min；
(13) it demoulds, is sintered to obtain the final product, be that 40 DEG C/h is warming up to 210-220 DEG C with heating rate, continue with 30 DEG C/h heating
Rate is warming up to 270-280 DEG C, soaking time 3-4h.
2. a kind of preparation method of metal friction composite material according to claim 1, it is characterised in that: the silicon carbide
Diameter of whiskers is 100-200nm, and length is 20-50 μm.
3. a kind of preparation method of metal friction composite material according to claim 1, it is characterised in that: the step
(3) supply frequency is 25kHz, discharge power 90W in.
4. a kind of preparation method of metal friction composite material according to claim 1, it is characterised in that: the step
(4) pressing speed is 17-19mm/min, dwell time 10min in.
5. a kind of preparation method of metal friction composite material according to claim 1, it is characterised in that: the step
(7) temperature is 850-900 DEG C, air pressure 10-12kPa, power 3-4kW in.
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| CN102180618A (en) * | 2011-02-16 | 2011-09-14 | 杭州优纳摩擦材料有限公司 | Friction material for preparing NAO brake pad |
| CN104164211A (en) * | 2014-07-30 | 2014-11-26 | 青岛乾祥环保技术有限公司 | Environment-friendly type ceramic-based friction material |
| CN105349097A (en) * | 2015-12-10 | 2016-02-24 | 吉林大学 | Structurally-bionic friction material and manufacturing method thereof |
| CN105602524A (en) * | 2016-03-22 | 2016-05-25 | 苏州捷德瑞精密机械有限公司 | Novel metal friction composite material and preparation method thereof |
| CN105801962A (en) * | 2016-04-06 | 2016-07-27 | 苏州甫众塑胶有限公司 | Composite frictional plastic material for ultrasonic motor and preparation method of composite frictional plastic material |
| CN108587052A (en) * | 2018-05-11 | 2018-09-28 | 贵州领想科技制造有限公司 | A kind of carbon composite friction material and preparation method thereof |
-
2018
- 2018-12-26 CN CN201811597250.2A patent/CN109749708A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180618A (en) * | 2011-02-16 | 2011-09-14 | 杭州优纳摩擦材料有限公司 | Friction material for preparing NAO brake pad |
| CN104164211A (en) * | 2014-07-30 | 2014-11-26 | 青岛乾祥环保技术有限公司 | Environment-friendly type ceramic-based friction material |
| CN105349097A (en) * | 2015-12-10 | 2016-02-24 | 吉林大学 | Structurally-bionic friction material and manufacturing method thereof |
| CN105602524A (en) * | 2016-03-22 | 2016-05-25 | 苏州捷德瑞精密机械有限公司 | Novel metal friction composite material and preparation method thereof |
| CN105801962A (en) * | 2016-04-06 | 2016-07-27 | 苏州甫众塑胶有限公司 | Composite frictional plastic material for ultrasonic motor and preparation method of composite frictional plastic material |
| CN108587052A (en) * | 2018-05-11 | 2018-09-28 | 贵州领想科技制造有限公司 | A kind of carbon composite friction material and preparation method thereof |
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Application publication date: 20190514 |
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| WW01 | Invention patent application withdrawn after publication |