CN1186402C - Bionic non-smooth antifriction composite coating and its manufacture method - Google Patents
Bionic non-smooth antifriction composite coating and its manufacture method Download PDFInfo
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- CN1186402C CN1186402C CNB011334584A CN01133458A CN1186402C CN 1186402 C CN1186402 C CN 1186402C CN B011334584 A CNB011334584 A CN B011334584A CN 01133458 A CN01133458 A CN 01133458A CN 1186402 C CN1186402 C CN 1186402C
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- antifriction composite
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Abstract
The present invention belongs to surface modification technology. Multi-element copper base brazing filler metal is used as adhesion alloy in a non-smooth abrasion-resistant composite coating layer; reinforced abrasion-resistant hard point particles are connected to basal body steel, and the non-smooth abrasion-resistant composite coating layer is formed on the surface of the basal body steel; the multi-element copper base brazing filler metal comprises ingredients as follows: zinc, manganese, nickel, tin, silicon, rare earth and copper; brazing flux comprises ingredients as follows: boric acid and a borax mixture, and a small quantity of fluoride is added; the reinforced abrasion-resistant hard point particles comprise an ingredient, namely carbide, the granularity of the reinforced abrasion-resistant hard point particles is 50 meshes to 100 meshes, and the added total quantity is 20Wt% to 80Wt%. A method for preparing the non-smooth abrasion-resistant composite coating layer comprises the steps that after the multi-element copper base brazing filler metal is smelted according to the preparation of components, powder with a particle size of 20 meshes to 80 meshes is made; the powder which occupies by 30Wt% to 70Wt%, one, two or three kinds which occupies by 20Wt% to 80Wt%, in tungsten carbide, titanium carbide and silicon carbide and the brazing flux which occupies by 1Wt% to 3Wt% are uniformly mixed; after the multi-element copper base brazing filler metal and the brazing flux are molten, the multi-element copper base brazing filler metal brazes hard points on the surface of basal body carbon steel to form the non-smooth abrasion-resistant composite coating layer.
Description
Technical field: the invention belongs to process for modifying surface, relate to subjects such as machinery, material, chemistry, biology, engineering bionics.
Background technology: abrasive wear is the one of the main reasons that vulnerable part inefficacies such as native mechanical part are touched on ground.At home and abroad, except that seeking novel anti abrasive wear material and from structure reasonably designs, surface hardening (surface modification) then is to improve the important method that ground is touched native mechanical part quality, increased the service life, improves use properties.At present, Chang Yong surface hardening technology has chemistry, laser, electron beam thermal treatment, built-up welding, spraying, deposition, coating etc.Because thin hardened layer is thinner, has reduced ground machine and touch the validity that native parts use under the operating mode of abrasive wear.And the raising of engineering materials surface hardness also is limited.Therefore, the present invention proposes a kind of novel bionic non-smooth antifriction composite coating.
Bionics is paid attention to by growing field and is used, and imitates birds and insect exactly as the structure of early stage aircraft, and the research of pyroscan is to be subjected to crotalic inspiration, and the appearance of sonar then is to be subjected to enlightenment of dolphin instinct or the like.Occurring in nature organism surface tissue has very particular structure and performance through evolution and the optimization in 1 years.Existing result of study shows, soil animal (as dung beetle) body surface is the geometric non-smooth feature, body surface touches distributing randomly or the regularly structural unite body of certain geometrical shape of native position, help reducing the effect of positive pressure during motion to body surface, reduce component of friction, non-smooth surface can become rolling to the plow on surface with abrasive material, thereby plays drag reduction, wear-resisting effect.Body surface has certain elasticity, and under impressed pressure, recoverable deformation can take place body surface.Boss is bearing overstocking of soil and friction, and the depression position Yi Ji gas of leaving a blank can alleviate barometric point, thereby reduces the frictional force with soil, and abrasion mechanism is changed.
Technology contents: the objective of the invention is at matrix is the method that forms bionic non-smooth antifriction composite coating and prepare this coating on the surface of steel.
The present invention is the geometric non-smooth feature of imitative soil animal (as dung beetle) body surface, adopt that manufacturing process is simple, easy and simple to handle, dependable performance, soldering tech with low cost, utilize the non-smooth antifriction composite coating of this soft, the hard heterogeneous material alternative stacked formation of high-ductility solder and high hardness wear-resisting hard point particulate reasonable combination preparation, its abrasion resistance is very excellent, can make the wear resistance of material and anti-attrition reach higher service requirements.
The object of the present invention is achieved like this:
The present invention makes binder alloy with multi-element Cu-base solder, to strengthen wear-resisting hard point particle and matrix steel links together, form a non-smooth antifriction composite coating on the surface of matrix steel, make binder alloy with multi-element Cu-base solder, to strengthen wear-resisting hard point particle and matrix steel links together, form a non-smooth antifriction composite coating on the surface of matrix steel, make binder alloy with multi-element Cu-base solder, to strengthen wear-resisting hard point particle and matrix steel links together, form a non-smooth antifriction composite coating on the surface of matrix steel, with the compound coating weight percent meter, this compound coating is by 30～70% multi-element Cu-base solders, 1～3% brazing flux and 20～80% strengthens wear-resisting hard point granulometric composition, does not exceed absolutely after above material is formed, wherein, the composition of multi-element Cu-base solder is counted with the weight percent of multi-element Cu-base solder: zinc 25～38%, manganese 8.5～9.5%, nickel 1.8～2.3%, tin 0.3～0.8%, silicon 0.3～0.8%, rare earth 0.1～0.3%, surplus copper; The composition of brazing flux is counted with the weight percent of brazing flux: the fluorochemical of 80～90% boric acid and borax dehydration mixture and 10～20%, and boric acid and borax were by weight 3: 7 proportionings; Strengthening wear-resisting hard point particulate composition is carbide, and granularity is 50～100 orders.
In the described non-smooth antifriction composite coating, the carbide in the multi-element Cu-base solder can be wolfram varbide or titanium carbide or silicon carbide, or two or three combination wherein, and grain graininess is 60～80 orders.
Carbide in the multi-element Cu-base solder adopts three kinds of combinations, and its particle add-on is (by weight percentage): wolfram varbide 20～60%, titanium carbide 10～30%, silicon carbide 10～30%.
Non-smooth antifriction composite coating of the present invention, its preparation method is: with multi-element Cu-base solder is (by weight percentage): zinc (Zn) 25～38%, manganese (Mn) 8.5～9.5%, nickel (Ni) 1.8～2.3%, tin (Sn) 0.3～0.8%, silicon (Si) 0.3～0.8%, rare earth (Re) 0.1～0.3%, after surplus copper (Cu) preparation is smelted, making granular size is 20～80 order powder, by weight percentage, wolfram varbide by 30～70% and 20～80%, titanium carbide, a kind of in the silicon carbide, two kinds or three kinds and 1～3% brazing flux uniform mixing are together, after high-frequency induction heating or LASER HEATING multi-element Cu-base solder and brazing flux fusing, multi-element Cu-base solder will strengthen wear-resisting hard point soldering and form a non-smooth antifriction composite coating at the matrix steel surface.
The technical indicator that non-smooth antifriction composite coating of the present invention reaches is: under two body static load abrasive wear operating modes, the wear resistance of non-smooth antifriction composite coating is 26 times of ZG35 steel, being 25 times of No. 45 steel (quenching attitude), is 21 times of ZGMn13 steel, is 1.6 times that the WC steel is oozed in the ZG35 casting; Bonding strength 〉=150Mpa between non-smooth antifriction composite coating inside (between solder and wear-resisting hard point) bonding strength and wear-resisting compound coating and the steel.
The present invention has the following advantages: the geometric non-smooth feature with soil animal body surface.The surfacing of non-smooth antifriction composite coating.Thickness can be adjusted arbitrarily from several millimeters to tens millimeters according to service requirements.The microscopical structure of non-smooth antifriction composite coating is similar to soil animal such as dung beetle head front portion, coating have good mould, toughness and high wear resistance, the plow of harder particle bearing load, opposing wearing and tearing, prevention abrasive particle, the fixed particle of softer matrix, absorption energy, its non-smooth surface can be cut abrasive material and become rolling to the scratching cutter on non-smooth antifriction composite coating surface, can alleviate the degree of wear of abrasive material to non-smooth antifriction composite coating effectively.
Embodiment: matrix all adopts carbon steel.
The composition of embodiment 1, multi-element Cu-base solder is (in weight percent Wt%): zinc (Zn) 25, and manganese (Mn) 8.5, nickel (Ni) 1.8, tin (Sn) 0.3, silicon (Si) 0.3, rare earth (Re) 0.1, surplus copper (Cu) is in weight percent Wt%: 30; Brazing flux is (in weight percent Wt%): 1; Strengthen wear-resisting hard point particulate composition and add-on and be (in weight percent Wt%): wolfram varbide 69, granularity are 50 orders.
The composition of embodiment 2, multi-element Cu-base solder is (in weight percent Wt%): zinc (Zn) 38, and manganese (Mn) 9.5, nickel (Ni) 2.3, tin (Sn) 0.8, silicon (Si) 0.8, rare earth (Re) 0.3, surplus copper (Cu) is in weight percent Wt%: 57; Brazing flux is (in weight percent Wt%): 3; Strengthen wear-resisting hard point particulate composition and add-on (in weight percent Wt%): wolfram varbide 20, titanium carbide 10, silicon carbide 10, strengthening wear-resisting hard point granularity is 100 orders.
The composition of embodiment 3, multi-element Cu-base solder is (in weight percent Wt%): zinc (Zn) 30, and manganese (Mn) 9.1, nickel (Ni) 2.0, tin (Sn) 0.6, silicon (Si) 0.6, rare earth (Re) 0.2, surplus copper (Cu) is in weight percent Wt%: 40; Brazing flux is (in weight percent Wt%): 2; Strengthen wear-resisting hard point particulate composition and add-on and be (in weight percent Wt%): wolfram varbide 50, titanium carbide 10, strengthening wear-resisting hard point granularity is 80 orders.
Each embodiment composition of table 1 non-smooth antifriction composite coating, add-on (in weight percent Wt%) and performance
Zn Mn Ni Sn Si Re Cu brazing flux carbide relative wear resistance intensity (Ma)
(ZG35 steel)
Embodiment 1 25 8.5 1.8 0.3 0.3 0.1 surpluses 1 wolfram varbide 69 16 230
Wolfram varbide 20
Embodiment 2 38 9.5 2.3 0.8 0.8 0.3 surpluses 3 titanium carbides 10 20 194
Silicon carbide 10
Embodiment 3 30 9.1 2.0 0.6 0.6 0.2 surpluses 2 wolfram varbides 50 24 219
Titanium carbide 10
Claims (4)
1. non-smooth antifriction composite coating, it is characterized in that: make binder alloy with multi-element Cu-base solder, to strengthen wear-resisting hard point particle and matrix steel links together, form a non-smooth antifriction composite coating on the surface of matrix steel, with the compound coating weight percent meter, this compound coating is by 30～70% multi-element Cu-base solders, 1～3% brazing flux and 20～80% strengthens wear-resisting hard point granulometric composition, after forming, above material do not exceed absolutely, wherein, the composition of multi-element Cu-base solder is counted with the weight percent of multi-element Cu-base solder: zinc 25～38%, manganese 8.5～9.5%, nickel 1.8～2.3%, tin 0.3～0.8%, silicon 0.3～0.8%, rare earth 0.1～0.3%, surplus copper; The composition of brazing flux is counted with the weight percent of brazing flux: the fluorochemical of 80～90% boric acid and borax dehydration mixture and 10～20%, and boric acid and borax were by weight 3: 7 proportionings; Strengthening wear-resisting hard point particulate composition is carbide, and granularity is 50～100 orders.
2. non-smooth antifriction composite coating according to claim 1 is characterized in that the carbide in the multi-element Cu-base solder is wolfram varbide or titanium carbide or silicon carbide, or two or three combination wherein, and grain graininess is 60～80 orders.
3. non-smooth antifriction composite coating according to claim 1 and 2, it is characterized in that the carbide in the multi-element Cu-base solder adopts three kinds of composition combinations, its particle add-on is counted with the carbide weight percent: wolfram varbide 20～60%, titanium carbide 10～30%, silicon carbide 10～30%.
4. the preparation method of a non-smooth antifriction composite coating as claimed in claim 1, it is characterized in that: after the multi-element Cu-base solder composition in the said non-smooth antifriction composite coating is prepared smelting by weight percentage, making granular size is 20～80 order powder, by proportioning and wolfram varbide, titanium carbide, a kind of in the silicon carbide, two kinds or three kinds and brazing flux uniform mixing are together, after high-frequency induction heating or LASER HEATING multi-element Cu-base solder and brazing flux fusing, multi-element Cu-base solder will strengthen wear-resisting hard point soldering and form a non-smooth antifriction composite coating at the matrix steel surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB011334584A CN1186402C (en) | 2001-11-14 | 2001-11-14 | Bionic non-smooth antifriction composite coating and its manufacture method |
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| CNB011334584A CN1186402C (en) | 2001-11-14 | 2001-11-14 | Bionic non-smooth antifriction composite coating and its manufacture method |
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| CN1405240A CN1405240A (en) | 2003-03-26 |
| CN1186402C true CN1186402C (en) | 2005-01-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1510953B (en) * | 1998-10-13 | 2012-10-10 | 高通股份有限公司 | Combined searching and paging monitor using offline sample storage |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100439743C (en) * | 2004-12-15 | 2008-12-03 | 吉林大学 | Braking drum with bionic non-smooth surface |
| US7842403B2 (en) * | 2006-02-23 | 2010-11-30 | Atotech Deutschland Gmbh | Antifriction coatings, methods of producing such coatings and articles including such coatings |
| CN102277018A (en) * | 2011-07-20 | 2011-12-14 | 合肥工业大学 | High-temperature self-lubricating wear-resistant powder coating |
| CN102714949B (en) * | 2012-07-13 | 2014-03-12 | 吉林大学 | Bamboo-like wear-resistant surface |
| CN105382439A (en) * | 2015-12-16 | 2016-03-09 | 郑州机械研究所 | Tubular braze coating material |
| CN106112307B (en) * | 2016-08-30 | 2018-07-31 | 郑州机械研究所有限公司 | A kind of lamellar composite pricker applies material and preparation method thereof |
| CN112453764A (en) * | 2020-12-12 | 2021-03-09 | 江西洪都航空工业集团有限责任公司 | Preparation method of flame brazing copper brazing material |
| CN115138936B (en) * | 2022-08-16 | 2023-04-18 | 上海交通大学 | Method for eliminating aluminum alloy hot cracks of aluminum-titanium laser welding and brazing lap joint |
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2001
- 2001-11-14 CN CNB011334584A patent/CN1186402C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1510953B (en) * | 1998-10-13 | 2012-10-10 | 高通股份有限公司 | Combined searching and paging monitor using offline sample storage |
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