CN1143689A - Fibre toughened metal ceramic build-up welding layer and part with same and its spraying welding method - Google Patents
Fibre toughened metal ceramic build-up welding layer and part with same and its spraying welding method Download PDFInfo
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- CN1143689A CN1143689A CN96108346A CN96108346A CN1143689A CN 1143689 A CN1143689 A CN 1143689A CN 96108346 A CN96108346 A CN 96108346A CN 96108346 A CN96108346 A CN 96108346A CN 1143689 A CN1143689 A CN 1143689A
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- overlay cladding
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Abstract
A fibre-toughened ceramal build-up welded layer for antiwear parts contains metal alloy, carbide and fibre. A part with said build-up welded layer is composed of base part as substrate, surface of fibre-toughened ceramal build-up welded layer, and intermediate fused layer containing substrate metal, sprayed metal and carbide. Its spray welding process features that fibre cluster is first put on the surface of part to be welded and spray welding is then conducted; or A molten pool is first formed on the surface of the part, fibre cluster is longitudinally transplanted into it, and finally the molten pool is naturally cooled.
Description
The invention belongs to a kind of overlay cladding and the parts of overlay cladding and the method for spray-welding of overlay cladding thereof arranged, particularly a kind of fibre toughened metal ceramic overlay cladding and the parts of overlay cladding and the method for spray-welding of overlay cladding thereof are arranged.
The coating and the coating method of a kind of anti-noise and/or vibration are disclosed in the CN1036046A patent document.What it was related is that a kind of one deck that comprises has the top coat of the harder objuct matter in space or hole, and the material that a kind of plasticity or elasticity are higher than above-mentioned harder objuct matter is contained in its space or hole.Harder objuct matter coating contains hard phase fiber.The plasma spraying method that it adopted is to be used to spray matrix material with harder objuct matter coating and body material bonding, and they are fusion not, so the bonding force of coating and matrix is not strong, does not more have toughness reinforcing or enhancement.And this coating just is used to prevent noise or vibration, and can not be used for wear-resistant.
One of purpose of the present invention provides a kind of parts that are used for the fibre toughened metal ceramic overlay cladding on wear-resistant surface and overlay cladding is arranged.
Two of purpose of the present invention provides a kind of method for spray-welding for preparing the fibre toughened metal ceramic overlay cladding.
Purpose of the present invention can realize by following measure:
The fibre toughened metal ceramic overlay cladding that is used for wear-resistant surface is to have the flexible wearable overlay at substrate surface by what spray fusing fusion formed, contains metal alloy, carbide and fiber in its overlay cladding composition; The moiety of metal alloy and carbide is: (weight %)
Fe (Ni, Co) 50～90 carbide 0～30
Ni0～15?Si0～5?Co0～10?Cr0～20?C0～6
Its Fibre diameter is 7～200 μ m, length 〉=20 μ m.
Carbide in the overlay cladding is wolfram varbide, titanium carbide, norbide, vanadium carbide etc.
Fiber in the overlay cladding is molybdenum fiber, tungsten fiber and fusing point thereof from the metal or alloy fiber of layer alloy, and the surface is coated with or is coated with the metal or alloy fiber of metal.
Fiber in the overlay cladding is non-metallic fibers such as the carbon fiber that is coated with or is coated with metal or silicon carbide, boron fibre, ceramic fiber.
Surfacing has the parts of fibre toughened metal ceramic overlay cladding, and its matrix is a metal, and upper layer is the fibre toughened metal ceramic overlay cladding, the centre be contain matrix metal, the fused layers of dust alloy and carbide, do not have tangible interface between each layer.
The spray welding process step of fibre toughened metal ceramic overlay cladding is:
(1) fibrous bundle is placed on the welding surface of workpiece;
(2) use plasma-arc welding equipment in the striking of workpiece welding surface;
(3) powder feeding surfacing is made ion gas and powder feeding gas with argon gas or nitrogen, sends into the powder mix that contains metal alloy and carbide, and its processing condition are:
Surfacing voltage is 28～32V, and the surfacing electric current is 80～200A
The powder feeding gas flow is that 0.2～1l/min gas flow of ions amount is 0.2～0.6l/min
Powder sending quantity is 10～30g/min; Surfacing speed is 5～30cm/min,
(4) during surfacing, earlier at the melting metal layer of workpiece surface formations＞2mm thickness, utilize liquid-metal layer mobile forward, fiber is covered fully, the powder feeding surfacing carries out successively subsequently.In order to avoid the direct irradiation fiber of plasma arc melts it.
(5) formed bath naturally cooling solidifies, and promptly forms the fibre toughened metal ceramic overlay cladding.
The processing step of its method for spray-welding can also be:
(1) use plasma-arc welding equipment in the striking of workpiece welding surface;
(2) powder feeding surfacing, its processing condition are same as described above;
(3) after workpiece surface to be welded forms the molten bath, vertically fiber is implanted in the molten bath along it at the postmedian in molten bath, treat the molten bath move forward an about molten bath apart from the time, then implant second bundle, by that analogy, finish until built-up welding;
(4) the molten bath naturally cooling solidifies, and promptly forms the fibre toughened metal ceramic overlay cladding.
Contain Ni in the overlay cladding, can improve matrix toughness; Co can improve thermotolerance; Increase a spot of Cr and can improve oxidation-resistance, solidity to corrosion; Si can improve the flowability of spray-welding coating; In overlay cladding, add high strength fibre, compound by with weld overlay materials, allow high strength fibre bear most of postwelding residual-tensile stress on the one hand, the tensile stress of being born with remarkable minimizing brittle matrix, the fiber of running into during crack propagation can stop crackle to further expand effectively on the other hand, increase the expansion resistance of crackle, thereby can fundamentally improve the anti-strong of overlay cladding, to improve its toughness.
The present invention compared with prior art has following advantage:
Overlay cladding and matrix fuse into one, so bonding force is strong, are unlikely to broken in the use or come off.Added high strength fibre in the overlay cladding, toughness be greatly enhanced, thus solved resurfacing welding material hardness more high tenacity low more and crisp, split problem, the high-rigidity resurfacing welding material can be widely used on the wearing piece, and can prolong the work-ing life of its workpiece.
The drawing of accompanying drawing is described as follows:
Fig. 1 is the workpiece sectional schematic diagram that surfacing has the fibre toughened metal ceramic overlay cladding.
1 is the workpiece base material among the figure, the 2nd, and fused layers, the 3rd, overlay cladding, the 4th, fiber.There is not tangible interface between each layer.
Fig. 2 is the metallographic structure photo (amplifying 100 times) of fibre toughened metal ceramic overlay cladding.
Not fusing of fiber in the overlay cladding as can be seen from Figure 2, the alloy structure densification.
The invention will be further described below in conjunction with specific embodiment:
Embodiment 1:
In material is the valve surface surfacing wearing layer of steel
(1) diameter with surperficial plating iron is that 80 μ m, length are the molybdenum filament of 5cm, and 30 is a branch of, gets 5 bundles and vertically is placed on the valve welding surface.
(2) use plasma-arc welding equipment in the striking of valve welding surface.
(3) be 60～160 purpose alloy powders with granularity, spray fusing is at the valve welding surface.During spray fusing, make powder feeding gas, ion gas with industrial straight argon, the powder feeding gas flow is 0.5l/min, and the gas flow of ions amount is 0.4l/min, and powder sending quantity is 10g/min, and the surfacing electric current is 150A, and surfacing speed is 10cm/min.
Alloy powder is composed as follows: Fe80g, B
4C20g.
(4) during surfacing, earlier at the melting metal layer of workpiece surface formations＞2mm thickness, utilize liquid-metal layer to flow forward, cover fully giving the molybdenum fiber of placing earlier, the powder feeding surfacing carries out successively subsequently.
(5) the formed bath naturally cooling of powder feeding surfacing solidifies, and promptly forms the fibre toughened metal ceramic overlay cladding in valve surface.
This valve base material is a steel, and the surface is to contain Fe, B
4The overlay cladding of C and molybdenum fiber, centre are Fe and B
4The fused layers of C.Its essentially no macroscopic crackle in overlay cladding surface produces.
Its hardness HRA92 impelling strength A after tested
k=16J/cm
2
Embodiment 2:
In material is the die surface surfacing wearing layer of nickel
(1) be that 7 μ m, length are the carbon fiber and the nickel plated carbon fiber of the surface plating silicon carbide of 1cm with diameter, 300 is a branch of, gets the welding surface that 5 bundles vertically are placed on mould.
(2) use plasma-arc welding equipment in the striking of mould welding surface.
(3) be 60～160 purpose alloy powders with granularity, spray fusing is at the mould welding surface.During spray fusing, make powder feeding gas, ion gas with industrial straight argon, the powder feeding gas flow is 0.8l/min, and the gas flow of ions amount is 0.2l/min, and powder sending quantity is 15g/min, and the surfacing electric current is 100A, and surfacing speed is 15cm/min.
Alloy powder is composed as follows: Ni65g, Tic20g, SiFe10, Co5.
(4) during surfacing, earlier at the melting metal layer of workpiece surface formations＞2mm thickness, utilize liquid-metal layer to flow forward, cover fully giving the carbon fiber of placing earlier, the powder feeding surfacing carries out successively subsequently.
(5) the formed molten bath of powder feeding surfacing naturally cooling solidifies, and promptly forms the fibre toughened metal ceramic overlay cladding at die surface.
This mould base material is a steel, and the surface is the overlay cladding that contains Ni, TiC, SiFe, Co and carbon fiber, and the centre is the fused layers of Ni and TiC, SiFe and Co.Its essentially no macroscopic crackle in overlay cladding surface produces.
Its hardness HRA86 impelling strength A after tested
k=10J/cm
2
Embodiment 3:
In material is the motor cylinder block surface spraying weld wearing layer of aluminium
(1) use plasma-arc welding equipment in the striking of cylinder body welding surface.
(2) be 60～160 purpose alloy powders with granularity, spray fusing is at the cylinder body welding surface.During spray fusing, make powder feeding gas, ion gas with industrial purity nitrogen, the powder feeding gas flow is 1l/min, and the gas flow of ions amount is 0.6l/min, and powder sending quantity is 20g/min, and the surfacing electric current is 180A, and surfacing speed is 20cm/min.
Alloy powder is composed as follows: Co55g, WC20g, CrFe15g, SiFe10g.
(3) treat that the cylinder body welding surface forms the molten bath after, be that 50 μ m, length are the tungsten filament of 10cm with diameter, 30 be a branch of, vertically is interrupted implantation molten bath postmedian along the molten bath.Treat molten bath of molten bath reach apart from the time, then implant second bundle, and the like.
(4) the formed molten bath of powder feeding surfacing naturally cooling solidifies, and promptly forms the fibre toughened metal ceramic overlay cladding in cylinder surface.
This cylinder body base material is an aluminium, and the surface is the overlay cladding that contains Co, WC, CrFe, SiFe and molybdenum fiber, and the centre is the fused layers of Al and Co, WC, CrFe, SiFe.Its essentially no macroscopic crackle in overlay cladding surface produces.
Its hardness HRC52 impelling strength A after tested
k=20J/cm
2
Claims (7)
1, a kind of be used for wear-resistant the table and the fibre toughened metal ceramic overlay cladding, it is characterized in that: this overlay cladding is to have the flexible wearable overlay at substrate surface by what spray fusing fusion formed, contains metal alloy, carbide and fiber in its overlay cladding composition; The moiety of metal alloy and carbide is: (weight %)
Fe (Ni, Co) 50～90 carbide 0～30 Ni0～15 Si0～5 Co0～10
Cr0～20?C0～6
Its Fibre diameter is 7～200 μ m, length 〉=20 μ m.
2, according to the said overlay cladding of claim 1, it is characterized in that: the carbide in the overlay cladding is wolfram varbide, titanium carbide, norbide, vanadium carbide etc.
3, according to the said overlay cladding of claim 1, it is characterized in that: the fiber in the overlay cladding is the metal or alloy fiber that molybdenum fiber, tungsten fiber and fusing point thereof are higher than the layer alloy.
4, according to the said overlay cladding of claim 1, it is characterized in that: the fiber in the overlay cladding is non-metallic fibers such as the carbon fiber that is coated with or is coated with metal level or silicon carbide, boron fibre, ceramic fiber.
5, a kind of surfacing is characterized in that just like the parts of each described overlay cladding in the claim 1 to 4: the parts matrix is a metal, and upper layer is the fibre toughened metal ceramic overlay cladding, the centre be contain matrix metal, the fused layers of dust alloy and carbide.
6, a kind of method for spray-welding for preparing the described overlay cladding of claim 1 to 4, it is characterized in that: the processing step of surfacing is:
(1) fibrous bundle is placed on the welding surface of workpiece;
(2) use plasma-arc welding equipment in the striking of workpiece welding surface;
(3) powder feeding surfacing is made ion gas and powder feeding gas with argon gas or nitrogen, sends into the powder mix that contains metal alloy and carbide, and its processing condition are:
Surfacing voltage is 28～32V, and the surfacing electric current is 80～200A
The powder feeding gas flow is that 0.2～1l/min gas flow of ions amount is 0.2～0.6l/min
Powder sending quantity is 10～30g/min; Surfacing speed is 5～30cm/min,
(4) during surfacing, earlier at the melting metal layer of workpiece surface formations＞2mm thickness, utilize liquid-metal layer mobile forward, fiber is covered fully, the powder feeding surfacing carries out successively subsequently.
(5) formed bath naturally cooling solidifies, and promptly forms the fibre toughened metal ceramic overlay cladding.
7, method for spray-welding as claimed in claim 6 is characterized in that: after workpiece surface to be welded forms the molten bath, at the postmedian in molten bath fiber is implanted in the molten bath, the molten bath naturally cooling solidifies, and promptly forms the fibre toughened metal ceramic overlay cladding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96108346A CN1143689A (en) | 1996-07-02 | 1996-07-02 | Fibre toughened metal ceramic build-up welding layer and part with same and its spraying welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96108346A CN1143689A (en) | 1996-07-02 | 1996-07-02 | Fibre toughened metal ceramic build-up welding layer and part with same and its spraying welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1143689A true CN1143689A (en) | 1997-02-26 |
Family
ID=5119944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96108346A Withdrawn CN1143689A (en) | 1996-07-02 | 1996-07-02 | Fibre toughened metal ceramic build-up welding layer and part with same and its spraying welding method |
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|---|---|
| CN (1) | CN1143689A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157899A (en) * | 2013-03-29 | 2013-06-19 | 常熟市红洲模具有限公司 | Copper base alloy die inner cavity all-spray-welding method |
| CN103572279A (en) * | 2013-10-16 | 2014-02-12 | 浙江机电职业技术学院 | Composite manufacturing technology for metal fiber-reinforced wearing piece |
| CN104451663A (en) * | 2014-11-21 | 2015-03-25 | 天津工业大学 | Preparation method for nickel-based glass fiber composite material based on laser cladding |
| CN105483595A (en) * | 2015-11-14 | 2016-04-13 | 华文蔚 | Inorganic coating with lower thermal expansion coefficient and preparing method of inorganic coating |
| CN105821367A (en) * | 2016-04-28 | 2016-08-03 | 宁国市开源电力耐磨材料有限公司 | Metal matrix abrasion-resistant, corrosion-resistant and high-temperature-resistant composite material surface coating and preparation method thereof |
| CN107162641A (en) * | 2017-06-05 | 2017-09-15 | 安徽省亚欧陶瓷有限责任公司 | A kind of preparation method of the wear-resisting ceramic tile with Non-smooth surface grade micro-surface structure |
| CN109457209A (en) * | 2018-12-26 | 2019-03-12 | 广东省新材料研究所 | A kind of preparation method of thermal spraying ceramic composite coating |
| CN110524103A (en) * | 2019-07-31 | 2019-12-03 | 杭州电子科技大学 | A kind of high rigidity surface micro-structure and preparation method thereof and device being implanted into carbon fiber |
| CN110666389A (en) * | 2019-10-18 | 2020-01-10 | 郑州机械研究所有限公司 | Fiber-toughened tungsten carbide welding rod |
| CN113579562A (en) * | 2021-07-26 | 2021-11-02 | 西安理工大学 | Metal fiber type flux-cored wire and preparation method thereof |
-
1996
- 1996-07-02 CN CN96108346A patent/CN1143689A/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157899A (en) * | 2013-03-29 | 2013-06-19 | 常熟市红洲模具有限公司 | Copper base alloy die inner cavity all-spray-welding method |
| CN103572279A (en) * | 2013-10-16 | 2014-02-12 | 浙江机电职业技术学院 | Composite manufacturing technology for metal fiber-reinforced wearing piece |
| CN103572279B (en) * | 2013-10-16 | 2015-11-18 | 浙江机电职业技术学院 | Wearing piece metal fiber reinforced compound manufacture process |
| CN104451663A (en) * | 2014-11-21 | 2015-03-25 | 天津工业大学 | Preparation method for nickel-based glass fiber composite material based on laser cladding |
| CN105483595A (en) * | 2015-11-14 | 2016-04-13 | 华文蔚 | Inorganic coating with lower thermal expansion coefficient and preparing method of inorganic coating |
| CN105821367A (en) * | 2016-04-28 | 2016-08-03 | 宁国市开源电力耐磨材料有限公司 | Metal matrix abrasion-resistant, corrosion-resistant and high-temperature-resistant composite material surface coating and preparation method thereof |
| CN107162641A (en) * | 2017-06-05 | 2017-09-15 | 安徽省亚欧陶瓷有限责任公司 | A kind of preparation method of the wear-resisting ceramic tile with Non-smooth surface grade micro-surface structure |
| CN109457209A (en) * | 2018-12-26 | 2019-03-12 | 广东省新材料研究所 | A kind of preparation method of thermal spraying ceramic composite coating |
| CN110524103A (en) * | 2019-07-31 | 2019-12-03 | 杭州电子科技大学 | A kind of high rigidity surface micro-structure and preparation method thereof and device being implanted into carbon fiber |
| CN110666389A (en) * | 2019-10-18 | 2020-01-10 | 郑州机械研究所有限公司 | Fiber-toughened tungsten carbide welding rod |
| CN110666389B (en) * | 2019-10-18 | 2021-07-02 | 郑州机械研究所有限公司 | Fiber-toughened tungsten carbide welding rod |
| CN113579562A (en) * | 2021-07-26 | 2021-11-02 | 西安理工大学 | Metal fiber type flux-cored wire and preparation method thereof |
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