CN103194698A - Carbon fiber reinforced tin-base composite material and preparation method thereof - Google Patents
Carbon fiber reinforced tin-base composite material and preparation method thereof Download PDFInfo
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- CN103194698A CN103194698A CN2013101338059A CN201310133805A CN103194698A CN 103194698 A CN103194698 A CN 103194698A CN 2013101338059 A CN2013101338059 A CN 2013101338059A CN 201310133805 A CN201310133805 A CN 201310133805A CN 103194698 A CN103194698 A CN 103194698A
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- carbon fiber
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- galvanic deposit
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Abstract
The invention discloses a carbon fiber reinforced tin-base composite material and a preparation method thereof, relates to the metal-based composite material, and solves the problems that the carbon fiber and the matrix are not continuous, and the carbon fiber reinforced effect cannot be fully played because in the prior art, the composite material is prepared by the carbon fiber and matrix metal tin. The composite material disclosed by the invention comprises the components by volume percent: 30-35% of carbon fiber, and 65-70% of tin. The preparation method comprises the processing steps of pretreating carbon fiber, electrically deposing tin, cleaning and neutralizing, electrically deposing tin, molding electro-deposition tin, cleaning and baking a blank, cutting the blank and putting into a die, carrying out hot pressing in vacuum, and cooling along with the furnace. The Cf/Sn composite material prepared by a three-step electro-deposition method not only has good mechanical property, but also has the advantages of corrosion resistance, creep resistance, anti-seizure property, fatigue resistance and small deformation, and can provide more choices for a bearing bush or other wear-resistant materials.
Description
Technical field
The present invention relates to metal-base composites, particularly carbon fiber strengthens tinbase matrix material (C
f/ Sn) preparation technology.
Background technology
Carbon fiber has the premium properties of high strength, high-modulus, low density, low thermal coefficient of expansion, conduction, corrosion-resistant, wear-resisting and antifriction, therefore, the carbon fiber reinforced metal based composites is used widely, and wherein one of application is exactly as high strength, antifriction and anti abrasive bearing shell material.
At present, bush material commonly used has three classes, 1) metallic substance, as bearing alloy (Sb-Sn, Cu-Sn alloy), copper alloy, aluminium alloy and cast iron etc.; 2) porous matter metallic substance; 3) non-metallic material.But there is not a kind of material to possess the required over-all properties of bush material.
Sb-Sn, Cu-Sn alloy are traditional bush materials, but there is deficiency to a certain extent in its performance, and for example its conformability, seizure resistance etc. are all very bad, and particularly under high loading, its wear resisting property, anti-fatigue performance often can not satisfy service requirements.Adopt carbon fiber to make the intensity that matrix material not only can improve matrix, can also utilize the carbon fiber good wear to improve the matrix friction and wear behavior.
The metal current based composites is preparation technology mainly contain: solid state fabrication techniques and liquid manufacturing technology.
Solid state process refers to that matrix is in solid-state in making the metal-base composites process.Because the manufacturing temperature of solid state process is low, so the surface reaction between metallic matrix and the enhancing body is not serious.Solid state process comprises powder metallurgic method, squeeze casting method, hot isostatic pressing method, rolling, hot extrusion method and hot pull method etc.
In solid-state manufacturing process, because carbon fiber filament diameter little (6～8 μ m), the continuous carbon fibre that provides on the market all is pencil (common 1000～3000/bundle), if adopt methods such as powder metallurgic method, squeeze casting method, hot isostatic pressing method, rolling, hot extrusion method and hot pull method to make C
f/ Sn matrix material can cause matrix metal can not coat every fiber, therefore cause fiber and the matrix discontinuity in matrix material, so just can not give full play to the enhancement of fiber, therefore the above solid state process that adopts is not suitable for the little fortifying fibre of diameter.
Liquid phase process refers to that metallic matrix is under the molten state manufacture method with solid-state enhancing volume recombination.Use liquid phase process making (C
f/ Sn) there are the following problems in the composite material: (1) since between tin and the carbon fiber wetting property poor, can cause matrix metal can not evenly coat every fiber, therefore, similar with solid state process, can cause fiber and the matrix discontinuity in matrix material, so just can not give full play to the enhancement of fiber; (2) after the liquid metal tin impregnation of carbon fibers, carbon fiber and metallic matrix volume content are wayward.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, provide a kind of carbon fiber to strengthen tinbase matrix material and preparation method thereof, solve and adopt carbon fiber and matrix metal tin to make the technology of matrix material at present, carbon fiber and matrix discontinuity can be caused, the problem of carbon fiber enhancement can not be given full play to.
The present invention is achieved by the following technical solutions:
A kind of carbon fiber strengthens the tinbase matrix material, and its characteristic is: the structure of described matrix material is: have the carbon fiber of tin, parallel longitudinal to arrange and through the slab of pressing by surface deposition; The component of matrix material and volume percent thereof are: carbon fiber: 30～35%, and tin: 65～70%.
A kind of carbon fiber strengthens the preparation method of tinbase matrix material, and its concrete processing step is:
(1) carbon fiber surface pre-treatment;
(2) carbon fiber surface galvanic deposit tin, its electrolyte prescription and galvanic deposit parameter are:
Solvent: distilled water, SnSO
4: 50～60g/L, H
2SO
4(98%): 60～70g/L, HCHO (formaldehyde, 36%ml/L): 15～20g/L, C
10H
10The O(benzylideneacetone): 0.2～0.5g/L, C
13H
14N
2(diaminodiphenylmethane): 0.06～0.2g/L, C
10H
10O
2(Resorcinol): 0.5～1.0g/L, J
K(current density): 0.3～0.6A/dm
2
(3) clean, neutralize;
(4) be coated with the carbon fiber electrically deposit tin of tin, its electrolyte prescription and galvanic deposit parameter are:
Solvent: distilled water, SnSO
4: 35～45g/L, H
2SO
4(98%): 40～50g/L, HCHO (formaldehyde, 36%/ml/L): 16～20g/L, C
10H
10The O(benzylideneacetone): 0.3～0.5g/L, C
13H
14N
2(diaminodiphenylmethane): 0.1～0.2g/L, C
10H
10O
2(Resorcinol): 0.6～1.0g/L, J
K(current density): 0.4～0.6A/dm
2
(5) carbon fiber that deposits tin is wrapped on the briquetting roller, moulding galvanic deposit tin, and its electrolyte prescription and galvanic deposit parameter are:
Solvent: distilled water, SnSO
4: 40～50g/L, H
2SO
4(98%): 45～50g/L, HCHO (formaldehyde, 36%/ml/L): 16～20g/L, C
10H
10The O(benzylideneacetone): 0.3～0.5g/L, C
13H
14N
2(diaminodiphenylmethane): 0.1～0.2g/L, C
10H
10O
2(Resorcinol): 0.7～1.0g/L, J
K(current density): 0.3～0.5A/dm
2
(6) taking off blank cleans, dries;
(7) shear blank, in the mould of packing into;
(8) vacuum hotpressing becomes the matrix material slab;
(9) the slab stove is chilled to room temperature.
It is that the mould that the composite filament blank is housed is put into vacuum tightness that described processing step (8) vacuum hotpressing becomes the matrix material slab〉2 * 10
-2In the process furnace of Pa, be heated to 110～130 ℃ with stove after, under 20MPa pressure, pressurize 30min is hot-forming.
Described processing step (1) pre-treatment of carbon fiber is that carbon fiber bundle is wrapped on the wiring round, puts into to be chilled to room temperature with stove after 320 ℃ of process furnace are incubated 30min.
C by above-mentioned prepared
fThe concrete performance of/Sn matrix material is as follows:
The present invention compared with prior art prepares C because employing three goes on foot electro-deposition methods
f/ Sn matrix material can make every fiber surface more evenly coat the layer of metal matrix in electrodeposition process, thereby has guaranteed even, the continuous distribution of fiber in matrix, can give full play to the enhancement of fiber.The evidence electrodip process prepares C
fThe advantage of/Sn matrix material is: manufacture method is simple, and cost is low; Even, the continuous distribution of fiber in matrix can be guaranteed, the enhancement of fiber can be given full play to; Can not cause big physical abuse to fiber in the manufacturing processed.
The present invention adopts Sn as body material, and strengthens with carbon fiber, utilizes the C of three steps electrodip process preparation
f/ Sn matrix material not only has the good mechanical performance, and has anticorrosive, creep resistance, bite-resistant, antifatigue and the little advantage of distortion, can be that bearing shell or other are wear-resisting to provide more selection with material.
Description of drawings
Fig. 1 strengthens tinbase (C for carbon fiber
f/ Sn) composite material preparation process schema;
Fig. 2 is for strengthening tinbase C for carbon fiber
f/ Sn) matrix material electrodeposition technology setting drawing;
Fig. 3 strengthens tinbase (C for carbon fiber
f/ Sn) the self routing setting drawing in the matrix material galvanic deposit moulding coating bath.
The present invention is further illustrated by preferred embodiment below in conjunction with accompanying drawing.
Embodiment
It is homemade middle strong type polyacrylonitrile (PAN) carbon fiber that the present invention adopts carbon fiber, filament diameter (6～8) μ m, and fasciculation (1000/bundle) can be chosen by design volume proportioning 30～35%.Its tensile strength is 2200MPa, and Young's modulus is 200GPa, and density is 1.78g/cm
3, carbon content〉and 96%.
Body material is pure tin, and tensile strength is 170MPa(cold deformation attitude), used galvanic deposit medicine is chemical pure.
Technical process of the present invention as shown in Figure 1.
1, pre-treatment of carbon fiber
For avoiding being bonded together between the single fiber and interfibrous wearing and tearing, the fasciculation carbon fiber surface of buying all scribbles cakingagent, all need before the use cakingagent is removed, at first carbon fiber is wrapped on the steel wiring round, put into then in 320 ℃ of process furnace, turn off the process furnace power supply behind the insulation 30min, be as cold as room temperature with stove and come out of the stove.
2, the first step galvanic deposit tin
At first in the pre-galvanic deposit one deck of carbon fiber surface tin (volume ratio about 15%), in the first step galvanic deposit tin process, by regulating electrodeposit liquid composition and technology, guarantee that each root carbon fiber surface can evenly coat one deck tin, be second step to thicken galvanic deposit tin to establish good basis.The volume content of galvanic deposit tin can be controlled by adjusting the galvanic deposit current density, with the volume percent value that meets design requirement.
The first step galvanic deposit electrolyte prescription and galvanic deposit parameter are as follows:
Solvent: distilled water.
3, clean, neutralize
Because the first step galvanic deposit electrolytic solution is slightly different with the second step galvanic deposit electrolyte prescription, so carbon fiber surface of the tin of galvanic deposit that comes out from the first step galvanic deposit electrolytic solution, need just can enter the second step galvanic deposit electrolytic solution through rinse bath and neutralizing well processing, avoid the second step galvanic deposit electrolytic solution is impacted.
4, the second step galvanic deposit tin
Carbon fiber surface to the first step galvanic deposit tin thickens galvanic deposit tin.The volume content of galvanic deposit tin can be controlled by adjusting the galvanic deposit current density, with the volume percent value that meets design requirement
The second step galvanic deposit electrolyte prescription and galvanic deposit parameter are as follows:
Solvent: distilled water
4, the 3rd one-step forming galvanic deposit tin
Carbon fiber through the second step galvanic deposit tin is wrapped in the surface coats on the briquetting roller of one deck tinfoil paper, in the moulding coating bath, carry out galvanic deposit tin, finally form the composite filament blank.The volume content of galvanic deposit tin can be controlled by adjusting the galvanic deposit current density.
The 3rd step galvanic deposit electrolyte prescription and galvanic deposit parameter are as follows:
Solvent: distilled water
5, clean, dry
Composite filament blank through the 3rd step galvanic deposit tin is taken off from briquetting roller, wash the electrolytic solution on surface, then oven dry.
6, shear, adorn mould
The composite filament blank of oven dry is sheared, put into steel die then.
7, vacuum hotpressing
The mould that the composite filament blank is housed is put into process furnace, be higher than 2 * 10
-2Be incubated after being heated to hot pressing temperature with stove under the vacuum tightness of Pa, carry out the hot pressing DIFFUSION TREATMENT behind the insulation certain hour, the hot pressing diffusion finishes the back furnace cooling comes out of the stove to room temperature, and finally the matrix material blank is hot pressed into the matrix material slab at the vacuum hotpressing unit.
The vacuum hot-pressing process parameter is as follows:
Vacuum tightness:〉2 * 10
-2Pa
Hot pressing temperature: 110～130 ℃
Hot pressing pressure: 20MPa
Hot pressing time: 30min
Realize process unit of the present invention as shown in Figure 2.
Carbon fiber bundle 1 is drawn by actinobacillus wheel 6, drives by transmission rig 4.At first through pre-pot 7, clean through rinse bath 8 then, through neutralizing well 9 neutralizations, enter moulding pot 11 through pot 10 again by connecton layout 5 again, be wrapped at last on the moulding crimping wheel 12, form the composite filament blank.Be connected with power supply 2 and electrolyte filtering pump 3 with each coating bath.
The self routing device of matrix material in galvanic deposit moulding coating bath as shown in Figure 3.
Claims (4)
1. a carbon fiber strengthens the tinbase matrix material, and it is characterized in that: the structure of described matrix material is: have the carbon fiber of tin, parallel longitudinal to arrange and through the slab of pressing by surface deposition; The component of matrix material and volume percent thereof are: carbon fiber: 30～35%, and tin: 65～70%.
2. one kind prepares the method that carbon fiber as claimed in claim 1 strengthens the tinbase matrix material, and step comprises: pre-treatment of carbon fiber, and electrodeposit metals, vacuum hotpressing is characterized in that: the processing step that described preparation carbon fiber strengthens the tinbase matrix material is:
(1) carbon fiber surface pre-treatment;
(2) carbon fiber surface galvanic deposit tin, its electrolyte prescription and galvanic deposit parameter are:
Solvent: distilled water,
SnSO
4：50～60g/L，H
2SO
4：60～70g/L，HCHO：15～20g/L，C
10H
10O：0.2～0.5g/L，C
13H
14N
2：0.06～0.2g/L，C
10H
10O
2：0.5～1.0g/L，J
K：0.3～0.6A/dm
2；
(3) clean, neutralize;
(4) be coated with the carbon fiber electrically deposit tin of tin, its electrolyte prescription and galvanic deposit parameter are:
Solvent: distilled water,
SnSO
4：35～45g/L，H
2SO
4：40～50g/L，HCHO：16～20g/L，C
10H
10O：0.3～0.5g/L，C
13H
14N
2：0.1～0.2g/L，C
10H
10O
2：0.6～1.0g/L，J
K：0.4～0.6A/dm
2；
(5) carbon fiber that deposits tin is wrapped on the briquetting roller, moulding galvanic deposit tin, and its electrolyte prescription and galvanic deposit parameter are:
Solvent: distilled water,
SnSO
4：40～50g/L，H
2SO
4：45～50g/L，HCHO：16～20g/L，C
10H
10O：0.3～0.5g/L，C
13H
14N
2：0.1～0.2g/L，C
10H
10O
2：0.7～1.0g/L，J
K：0.3～0.5A/dm
2；
(6) taking off blank cleans, dries;
(7) shear blank, in the mould of packing into;
(8) vacuum hotpressing becomes the matrix material slab;
(9) the slab stove is chilled to room temperature.
3. strengthen the method for tinbase matrix material according to the described carbon fiber of claim 2, it is characterized in that: it is that the mould that the composite filament blank is housed is put into vacuum tightness that described processing step (8) vacuum hotpressing becomes the matrix material slab〉2 * 10
-2In the process furnace of Pa, be heated to 110～130 ℃ with stove after, under 20MPa pressure, pressurize 30min is hot-forming.
4. strengthen the method for tinbase matrix material according to the described carbon fiber of claim 2, it is characterized in that: described processing step (1) pre-treatment of carbon fiber, be that carbon fiber bundle is wrapped on the wiring round, put into and be chilled to room temperature with stove after 320 ℃ of process furnace are incubated 30min.
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| CN2013101338059A CN103194698A (en) | 2013-04-17 | 2013-04-17 | Carbon fiber reinforced tin-base composite material and preparation method thereof |
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|---|---|---|---|
| CN2013101338059A CN103194698A (en) | 2013-04-17 | 2013-04-17 | Carbon fiber reinforced tin-base composite material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115044843A (en) * | 2022-06-29 | 2022-09-13 | 东北大学 | Preparation method of rolled carbon fiber reinforced aluminum alloy composite material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3622283A (en) * | 1967-05-17 | 1971-11-23 | Union Carbide Corp | Tin-carbon fiber composites |
| US4132828A (en) * | 1976-11-26 | 1979-01-02 | Toho Beslon Co., Ltd. | Assembly of metal-coated carbon fibers, process for production thereof, and method for use thereof |
| CN101067192A (en) * | 2007-04-10 | 2007-11-07 | 中北大学 | Carbon fiber reinforced nickel-based composite material and producing method thereof |
| CN102071374A (en) * | 2010-11-05 | 2011-05-25 | 西安工程大学 | Method for preparing hemp fabric/Sn metal composite through powder metallurgy |
-
2013
- 2013-04-17 CN CN2013101338059A patent/CN103194698A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3622283A (en) * | 1967-05-17 | 1971-11-23 | Union Carbide Corp | Tin-carbon fiber composites |
| US4132828A (en) * | 1976-11-26 | 1979-01-02 | Toho Beslon Co., Ltd. | Assembly of metal-coated carbon fibers, process for production thereof, and method for use thereof |
| CN101067192A (en) * | 2007-04-10 | 2007-11-07 | 中北大学 | Carbon fiber reinforced nickel-based composite material and producing method thereof |
| CN102071374A (en) * | 2010-11-05 | 2011-05-25 | 西安工程大学 | Method for preparing hemp fabric/Sn metal composite through powder metallurgy |
Non-Patent Citations (1)
| Title |
|---|
| 刘鹏飞: "《电镀工实用技术手册》", 29 February 2004, article "酸性镀锡", pages: 347-352 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115044843A (en) * | 2022-06-29 | 2022-09-13 | 东北大学 | Preparation method of rolled carbon fiber reinforced aluminum alloy composite material |
| CN115044843B (en) * | 2022-06-29 | 2023-09-22 | 东北大学 | Preparation method of rolled carbon fiber reinforced aluminum alloy composite material |
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Application publication date: 20130710 |