CN103665771A - Wear-resistant composition, wear-resistant gear and manufacturing method of wear-resistant gear - Google Patents
Wear-resistant composition, wear-resistant gear and manufacturing method of wear-resistant gear Download PDFInfo
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- CN103665771A CN103665771A CN201310742716.4A CN201310742716A CN103665771A CN 103665771 A CN103665771 A CN 103665771A CN 201310742716 A CN201310742716 A CN 201310742716A CN 103665771 A CN103665771 A CN 103665771A
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- 239000000203 mixture Substances 0.000 title claims abstract description 61
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000011159 matrix material Substances 0.000 claims abstract description 44
- 229920005989 resin Polymers 0.000 claims abstract description 30
- 239000011347 resin Substances 0.000 claims abstract description 30
- 239000004952 Polyamide Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 17
- 229920002647 polyamide Polymers 0.000 claims description 17
- 239000004593 Epoxy Substances 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 238000005507 spraying Methods 0.000 claims description 13
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 12
- 239000012948 isocyanate Substances 0.000 claims description 12
- 150000002513 isocyanates Chemical class 0.000 claims description 12
- 229920000570 polyether Polymers 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229920000459 Nitrile rubber Polymers 0.000 claims description 9
- 239000002041 carbon nanotube Substances 0.000 claims description 9
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 9
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 9
- 229920002635 polyurethane Polymers 0.000 claims description 9
- 239000004814 polyurethane Substances 0.000 claims description 9
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 9
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 7
- 239000004917 carbon fiber Substances 0.000 claims description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 4
- 229920000800 acrylic rubber Polymers 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 15
- 230000003014 reinforcing effect Effects 0.000 abstract 5
- 238000005452 bending Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Gears, Cams (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a wear-resistant composition, a wear-resistant gear manufactured by use of the wear-resistant composition and a manufacturing method of the wear-resistant gear. The wear-resistant composition comprises the following components in percentage by mass: 60-90% of resin matrix, 2-30% of elastic reinforcing component and 1-10% of wear-resistant reinforcing component. In the wear-resistant composition provided by the invention, the resin matrix is a main body part of a wear-resistant material and is a basis of the wear-resistant material; by virtue of adding the elastic reinforcing component with large molecular weight, the elastic reinforcing component and the resin matrix form a dispersive island structure, the elongation at break and bending deformation of the material are improved, and the mechanical properties of the material are improved; the wear-resistant reinforcing component is used for improving the wear resistance, friction coefficient, thermal conductivity and the like of the material. The wear-resistant gear manufactured by use of the wear-resistant composition is high in hardness and good in wear-resistant property, the wear consumption of the wear-resistant gear is reduced, the service life of the wear-resistant gear is prolonged and meanwhile the overhaul frequency of the wear-resistant gear is reduced.
Description
Technical field
The present invention relates to Gear Processing field, more specifically, relate to a kind of wear-resistant composition, adopt wear-resistant gear that this wear-resistant composition makes and the manufacture method of this wear-resistant gear.
Background technology
Along with developing rapidly of plastics industry, plastic gear is at a lot of occasions substituted metal gear, and is applied to more and more widely motion and powerdriven occasion.
The advantage such as plastic gear has that quality is light, noise is low, corrosion-resistant and self-lubricating property is good, but, the abradability of plastic gear is poor, although, adopt the strongtheners such as glass fibre, carbon fiber, aramid fiber can make the abradability of plastic gear increase, but the abrasion resistance properties of plastic gear still can not meet the demands.
Summary of the invention
The present invention is intended at least solve one of technical problem existing in prior art.
For this reason, the object of first aspect of the present invention is, the wear-resistant composition that a kind of wear resisting property is good is provided.
The object of second aspect of the present invention is, a kind of wear-resistant gear that adopts this wear-resistant composition to make is provided.
The object of the 3rd aspect of the present invention is, a kind of manufacture method of wear-resistant gear is provided.
For achieving the above object, the embodiment of first aspect of the present invention provides a kind of wear-resistant composition, and the component comprising and the mass content of each component are: resin matrix: 60%～90%; Elasticity enhancement component: 2%～30%; Wear-resisting enhancement component: 1%～10%.
The wear-resistant composition that the embodiment of the present invention provides, comprises resin matrix, elasticity enhancement component and wear-resisting enhancement component three parts, and wherein, the main part that resin matrix is wear-resistant composition, is the basis of wear-resistant composition; The drawbacks such as, poor toughness poor based on the existing impact strength of thermosetting material itself, by adding the elasticity enhancement component of macromolecule, elasticity enhancement component and resin matrix are formed and disperse island structure, improve elongation at break and the flexural deformation of material, and then promote and improve the mechanical property of material; Wear-resisting enhancement component is used for improving wear resistance, frictional coefficient and the thermal conductivity etc. of material.
In sum, the wear-resistant composition that the embodiment of the present invention provides, hardness is high, abrasion resistance properties good.
In addition, the wear-resistant composition providing according to the above embodiment of the present invention also has following additional technical feature:
According to one embodiment of present invention, described resin matrix comprises epoxy resin matrix and/or polyurethane series matrix.
According to one embodiment of present invention, described epoxy resin matrix comprises modified epoxy and polyamide curing agent, and the mass ratio of the two is 100:30～60.
According to one embodiment of present invention, described polyurethane series matrix comprises polyether oligomer and Isocyanate Oligomer, and the mass ratio of the two is 100:20～50.
According to one embodiment of present invention, described elasticity enhancement component comprises any one or a few in end carboxyl nitrile rubber, polyurethanes elastomerics, ethylene octane copolymer and acrylic elastomer.
According to one embodiment of present invention, described wear-resisting enhancement component comprises any one or a few in molybdenumdisulphide, silicon carbide, carbon fiber and tetrafluoroethylene.
According to one embodiment of present invention, described molybdenumdisulphide is nano level molybdenumdisulphide, and described silicon carbide is nanometer silicon carbide, and described carbon fiber is carbon nanotube.
The embodiment of second aspect of the present invention provides a kind of wear-resistant gear, comprises gear body and wearing layer, and described wearing layer adopts the wear-resistant composition described in above-mentioned arbitrary embodiment to make, and described wearing layer covers on the outside surface of described gear body.
According to one embodiment of present invention, the thickness of described wearing layer is 0.2～2mm.
The embodiment of third aspect of the present invention provides a kind of manufacture method of wear-resistant gear, comprises the following steps: step 102, prepare gear body; Step 104, carries out preheating to the resin matrix in the wear-resistant composition described in above-mentioned arbitrary embodiment; Step 106, after the described resin matrix in described wear-resistant composition, elasticity enhancement component and wear-resisting enhancement component are mixed, stirs; Step 108, by the described wear-resistant composition spraying mixing or blade coating or be injected on the outside surface of described gear body.
The manufacture method of the wear-resistant gear providing according to the above embodiment of the present invention in addition, also has following additional technical feature:
According to one embodiment of present invention, in described step 104, described resin matrix comprises modified epoxy and polyamide curing agent, preheating 2～4h at the temperature of 40～60 ℃ by described modified epoxy and described polyamide curing agent.
According to one embodiment of present invention, in described step 104, described resin matrix comprises polyether oligomer and Isocyanate Oligomer, preheating 2～4h at the temperature of 90～120 ℃ by described polyether oligomer and described Isocyanate Oligomer.
According to one embodiment of present invention, the preparation gear body in described step 102 comprises: by gear sand papering for body, deoil, and soak 8～12min with acetone soln, dry.
According to one embodiment of present invention, in described step 108, on described gear body repeatedly spraying or blade coating described in wear-resistant composition, and be painted with after described wear-resistant composition spraying or scrape at every turn, at the temperature of 50～70 ℃, described gear body is dried 1～3 hour, with after sand papering, again spray or blade coating.
Additional aspect of the present invention and advantage will become in description part below obviously, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination obviously and is easily understood becoming the description of embodiment, wherein:
Fig. 1 is according to the schema of the manufacture method of the wear-resistant gear described in first embodiment of the invention;
Fig. 2 is according to the schema of the manufacture method of the wear-resistant gear described in second embodiment of the invention.
Embodiment
In order more clearly to understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, in the situation that not conflicting, the application's embodiment and the feature in embodiment can combine mutually.
A lot of details have been set forth in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from mode described here and implement, and therefore, protection scope of the present invention is not subject to the restriction of following public specific embodiment.
A kind of wear-resistant composition providing according to some embodiments of the invention, the component comprising and the mass content of each component are:
Resin matrix: 60%～90%;
Elasticity enhancement component: 2%～30%;
Wear-resisting enhancement component: 1%～10%.
The wear-resistant composition that the embodiment of the present invention provides comprises resin matrix, elasticity enhancement component and wear-resisting enhancement component three parts, and wherein, the main part that resin matrix is wear-resistant composition, is the basis of wear-resistant composition; The drawbacks such as, poor toughness poor based on the existing impact strength of thermosetting material itself, by adding the elasticity enhancement component of macromolecule, elasticity enhancement component and resin matrix are formed and disperse island structure, improve elongation at break and the flexural deformation of material, and then promote and improve the mechanical property of material; Wear-resisting enhancement component is used for improving wear resistance, frictional coefficient and the thermal conductivity etc. of material.
In sum, the wear-resistant composition that the embodiment of the present invention provides, hardness is high, abrasion resistance properties good.
In some embodiments of the invention, described resin matrix comprises epoxy resin matrix and/or polyurethane series matrix.
In specific embodiment of the present invention, described epoxy resin matrix comprises modified epoxy and polyamide curing agent, and the mass ratio of the two is 100:30～60.
In another specific embodiment of the present invention, described polyurethane series matrix comprises polyether oligomer and Isocyanate Oligomer, and the mass ratio of the two is 100:20～50.
In some embodiments of the invention, described elasticity enhancement component comprises any one or a few in end carboxyl nitrile rubber, polyurethanes elastomerics, ethylene octane copolymer and acrylic elastomer.
In some embodiments of the invention, described wear-resisting enhancement component comprises any one or a few in molybdenumdisulphide, silicon carbide, carbon fiber and tetrafluoroethylene.
Preferably, described molybdenumdisulphide is nano level molybdenumdisulphide, and described silicon carbide is nanometer silicon carbide, and described carbon fiber is carbon nanotube.
The embodiment of second aspect of the present invention provides a kind of wear-resistant gear, comprises gear body and wearing layer, and wherein, described wearing layer adopts wear-resistant composition described in above-mentioned arbitrary embodiment to make, and described wearing layer covers on the outside surface of described gear body.
Further, described gear body adopts fibre-reinforced polyamide matrix material to make.
The wear-resistant gear that the embodiment of second aspect of the present invention provides, comprises gear body and the wearing layer that covers this external surface of gear, and gear body adopts fibre-reinforced polyamide matrix material to make, and makes the intensity enhancing of gear body, and mechanical property is good; Wearing layer the abrasion resistance properties that has strengthened wear-resistant gear is set, extended the maintenance cycle of wear-resistant gear, make the use properties of wear-resistant gear better.
Preferably, the thickness of described wearing layer is 0.2～2mm.
Because the hardness of wear-resistant composition is high, fragility is large, so that the thickness of wearing layer is difficult for is excessive, otherwise will cause the adhesive ability of wearing layer and gear body poor, the poor synchronization that the two deforms.
The embodiment of third aspect of the present invention provides a kind of manufacture method of wear-resistant gear, and as shown in Figure 1, the manufacture method of described wear-resistant gear comprises the following steps:
Particularly, the preparation gear body in described step 102 comprises: by gear sand papering for body, deoil, and soak 8～12 minutes with acetone soln, dry.
It should be noted that, in the manufacture method of the wear-resistant gear that the above embodiment of the present invention provides, the step (being step 102) of preparing gear body and the step (being step 104 and 106) of preparing wear-resistant composition are two separate processes, before the step of preparation gear body both can be placed on the step of preparing wear-resistant composition, embodiment as shown in Figure 1, after can also being placed into the step of preparing wear-resistant composition, embodiment as shown in Figure 2, now, first prepare wear-resistant composition (be step 102 in Fig. 2 ' and step 104 '), and then preparation gear body (be the step 106 in Fig. 2 '), wear-resistant composition spraying or blade coating or be injected on the outside surface of gear body (be the step 108 in Fig. 2 ') the most at last, certainly the step of preparing gear body can also be carried out with the step of preparing wear-resistant composition simultaneously.
In a specific embodiment of the present invention, in described step 104, described resin matrix comprises modified epoxy and polyamide curing agent, by the preheating 2～4 hours at the temperature of 40～60 ℃ of described modified epoxy and described polyamide curing agent.
At another specific embodiment of the present invention, in described step 104, described resin matrix comprises polyether oligomer and Isocyanate Oligomer, described polyether oligomer and described Isocyanate Oligomer is blended at the temperature of 90～120 ℃ to preheating 2～4 hours.
Resin matrix is carried out to preheating, reduced the viscosity of resin matrix, be convenient to the mixing of each component in resin matrix.
In a specific embodiment of the present invention, in described step 108, on described gear body repeatedly spraying or blade coating described in wear-resistant composition, and be painted with after described wear-resistant composition spraying or scrape at every turn, at the temperature of 50～70 ℃, described gear body is dried 1～3 hour, with after sand papering, again spray or blade coating.
The manufacture method of the wear-resistant gear that the present embodiment provides is described below in conjunction with specific embodiment:
Embodiment mono-:
The component that wear-resistant composition comprises and the mass content of each component are: modified epoxy: 63%, and polyamide curing agent: 27%, end carboxyl nitrile rubber: 7%, carbon nanotube: 2%, nano level molybdenumdisulphide: 1%.
The preparation process of wear-resistant gear is as follows:
1) by modified epoxy and polyamide curing agent preheating 3 hours, preheating temperature was 45 ℃;
2) modified epoxy, end carboxyl nitrile rubber, polyamide curing agent, carbon nanotube, nano level molybdenumdisulphide are stirred after mixing;
3) by wear-resistant composition spraying or blade coating or be injected into dichromatism injection moulding machine on the outside surface of the gear body having prepared.
Embodiment bis-:
The component that wear-resistant composition comprises and the mass content of each component are: modified epoxy: 50%, and polyamide curing agent: 15%, end carboxyl nitrile rubber: 27%, carbon nanotube: 5%, nano level molybdenumdisulphide: 2%, polytetrafluoroethylene (PTFE): 1%.
The preparation process of wear-resistant gear is as follows:
1) by modified epoxy and polyamide curing agent preheating 4 hours, preheating temperature was 40 ℃;
2) will after modified epoxy, end carboxyl nitrile rubber, polyamide curing agent, carbon nanotube, nano level molybdenumdisulphide and PTFE mixing, stir;
3) by wear-resistant composition spraying or blade coating or be injected into dichromatism injection moulding machine on the outside surface of the gear body having prepared.
Embodiment tri-:
The component that wear-resistant composition comprises and the mass content of each component are: polyether oligomer: 60%, and Isocyanate Oligomer: 20%, end carboxyl nitrile rubber: 15%, carbon nanotube: 3%, nano level molybdenumdisulphide: 2%.
The preparation process of wear-resistant gear is as follows:
1) by polyether oligomer and Isocyanate Oligomer preheating 3 hours, preheating temperature was 110 ℃;
2) polyether oligomer, end carboxyl nitrile rubber, Isocyanate Oligomer, carbon nanotube, nano level molybdenumdisulphide are stirred after mixing;
3) by wear-resistant composition spraying or blade coating or be injected into dichromatism injection moulding machine on the outside surface of the gear body having prepared.
In sum, the wear-resistant gear that the wear-resistant composition providing by the above embodiment of the present invention is made, hardness is high, abrasion resistance properties good, reduced the attrition of wear-resistant gear, extend the work-ing life of wear-resistant gear, reduced the repair rate of wear-resistant gear simultaneously, reduced the cost of overhaul.
In the description of this specification sheets, the description of term " embodiment ", " some embodiment ", " specific embodiment " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (14)
1. a wear-resistant composition, is characterized in that, the component comprising and the mass content of each component are:
Resin matrix: 60%～90%;
Elasticity enhancement component: 2%～30%;
Wear-resisting enhancement component: 1%～10%.
2. wear-resistant composition according to claim 1, is characterized in that,
Described resin matrix comprises epoxy resin matrix and/or polyurethane series matrix.
3. wear-resistant composition according to claim 2, is characterized in that,
Described epoxy resin matrix comprises modified epoxy and polyamide curing agent, and the mass ratio of the two is 100:30～60.
4. wear-resistant composition according to claim 2, is characterized in that,
Described polyurethane series matrix comprises polyether oligomer and Isocyanate Oligomer, and the mass ratio of the two is 100:20～50.
5. according to the wear-resistant composition described in any one in claim 1 to 4, it is characterized in that,
Described elasticity enhancement component comprises any one or a few in end carboxyl nitrile rubber, polyurethanes elastomerics, ethylene octane copolymer and acrylic elastomer.
6. according to the wear-resistant composition described in any one in claim 1 to 4, it is characterized in that,
Described wear-resisting enhancement component comprises any one or a few in molybdenumdisulphide, silicon carbide, carbon fiber and tetrafluoroethylene.
7. wear-resistant composition according to claim 6, is characterized in that,
Described molybdenumdisulphide is nano level molybdenumdisulphide, and described silicon carbide is nanometer silicon carbide, and described carbon fiber is carbon nanotube.
8. a wear-resistant gear, is characterized in that, comprising:
Gear body; With
Wearing layer, described wearing layer adopts the wear-resistant composition as described in any one in claim 1 to 7 to make, and described wearing layer covers on the outside surface of described gear body.
9. wear-resistant gear according to claim 8, is characterized in that,
The thickness of described wearing layer is 0.2～2mm.
10. a manufacture method for wear-resistant gear, is characterized in that, comprises the following steps:
Step 102, prepares gear body;
Step 104, carries out preheating to the resin matrix in the wear-resistant composition as described in any one in claim 1 to 7;
Step 106, after the described resin matrix in described wear-resistant composition, elasticity enhancement component and wear-resisting enhancement component are mixed, stirs;
Step 108, by the described wear-resistant composition spraying mixing or blade coating or be injected on the outside surface of described gear body.
The manufacture method of 11. wear-resistant gears according to claim 10, is characterized in that,
In described step 104, described resin matrix comprises modified epoxy and polyamide curing agent, by the preheating 2～4 hours at the temperature of 40～60 ℃ of described modified epoxy and described polyamide curing agent.
The manufacture method of 12. wear-resistant gears according to claim 10, is characterized in that,
In described step 104, described resin matrix comprises polyether oligomer and Isocyanate Oligomer, by the preheating 2～4 hours at the temperature of 90～120 ℃ of described polyether oligomer and described Isocyanate Oligomer.
13. manufacture method according to claim 10 to the wear-resistant gear described in any one in 12, is characterized in that, the preparation gear body in described step 102 comprises:
By gear sand papering for body, deoil, and soak 8～12 minutes with acetone soln, dry.
14. manufacture method according to claim 10 to the wear-resistant gear described in any one in 12, is characterized in that,
In described step 108, wear-resistant composition described in spraying or blade coating repeatedly on described gear body, and be painted with after described wear-resistant composition spraying or scrape at every turn, at the temperature of 50～70 ℃, described gear body is dried 1～3 hour, with after sand papering, again spray or blade coating.
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| CN105504786A (en) * | 2015-12-09 | 2016-04-20 | 无锡普瑞明思机械制造有限公司 | Composite mechanical material for gear |
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| CN113527925A (en) * | 2021-08-13 | 2021-10-22 | 台州格凌机械股份有限公司 | Wear-resistant gear and production process thereof |
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