CN1016710B - Cast iron surface plasma arc spray welding copper alloy powder and spray welding method - Google Patents
Cast iron surface plasma arc spray welding copper alloy powder and spray welding methodInfo
- Publication number
- CN1016710B CN1016710B CN 86104601 CN86104601A CN1016710B CN 1016710 B CN1016710 B CN 1016710B CN 86104601 CN86104601 CN 86104601 CN 86104601 A CN86104601 A CN 86104601A CN 1016710 B CN1016710 B CN 1016710B
- Authority
- CN
- China
- Prior art keywords
- powder
- copper
- alloy powder
- cast iron
- copper alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000003466 welding Methods 0.000 title claims abstract description 26
- 239000000843 powder Substances 0.000 title claims abstract description 23
- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 21
- 229910001018 Cast iron Inorganic materials 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000007921 spray Substances 0.000 title claims abstract description 9
- 239000011159 matrix material Substances 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 239000000956 alloy Substances 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- QFXZANXYUCUTQH-UHFFFAOYSA-N ethynol Chemical group OC#C QFXZANXYUCUTQH-UHFFFAOYSA-N 0.000 abstract description 5
- 238000007747 plating Methods 0.000 abstract 1
- 239000010949 copper Substances 0.000 description 9
- 229910052802 copper Inorganic materials 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000010891 electric arc Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000005275 alloying Methods 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 229910001060 Gray iron Inorganic materials 0.000 description 2
- 229910000765 intermetallic Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000002498 deadly effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
The invention provides a novel copper alloy powder material, which aims to solve the problems of wettability and weldability between a cast iron matrix and a copper alloy, and provides a method suitable for an arc spray welding process. Practice proves that the method has remarkable effect compared with the traditional ring plating process and oxyacetylene flame and surfacing welding or mechanized surfacing welding.
Description
The present invention relates to metal thermal spraying and welding technique.Particularly at cast iron (especially grey cast iron) matrix surface spray-welding copper alloy powder and method for spray-welding.
As everyone knows, be the low pressure valve of matrix with the grey cast iron, the material of its trim nearly all is to adopt copper alloy.Usually people mainly take methods such as edge circle, oxyacetylene torch manual build up welding or mechanize built-up welding to the process for machining and manufacturing of low pressure valve trim.Facts have proved: these two kinds of processing methodes, all there is different drawbacks separately, one is because edge circle technology is taked " single face dovetail shrink-fit " structure, when causing processing turning, the Cu alloy material consumption is big, and tightness can be also undesirable, shows according to pertinent data, the copper material utilization ratio of edge circle technology has only 20-30%, and the seepage scrap rate that is caused by pressure testing accounts for the 30-38% of waste product sum; It two adopts oxyacetylene torch manual build up welding or mechanize surfacing of Cu alloy prior on cast iron, obviously can enhance productivity, reduce cost, but deadly defect is must carry out high temperature preheating more than 700 ℃ to ironcasting before the built-up welding, and surfacing layer quality is also unstable.Therefore, all trying to explore research on cast iron both at home and abroad at present, adopting the weldability problem of plasma arc spray copper alloy, but all do not tackle the problem at its root.In-problem major cause is: (one) electric arc instability; (2) the mutual warm and humid property of cast iron matrix and copper alloy is very poor; (3) be easy to generate hole and hardened structure in the heap layer.At in the 1984 disclosed patent application GB2130242A of Britain, be entitled as " being used for for example alloy coat of glass mold of cast-iron parts " to declare at cast iron matrix, the nickel-base alloy that adopts the plasma transferred arc spray to have minimum pore belongs to.This shows that before the present invention, also nobody really solves a difficult problem of utilizing copper alloy powder plasma-arc welding on cast iron.
Starting point of the present invention is very clear and definite; be to provide a kind of new copper-base alloy powder; to solve the problem of warm and humid lubricant nature difference between cast iron matrix and the copper alloy; the form of adjustment electric arc and reinforcement are to the protection of copper alloy under the high temperature; seek an adaptation simultaneously and on cast iron, take the processing method of copper alloy powder plasma-arc welding; to replace the technology of oxyacetylene torch manual build up welding or mechanize surfacing of Cu alloy, reach traditional edge circle technology.
In order to realize that effectively above-mentioned purpose, the present invention give one's full attention to and considered protection to LMP such as Zn, Sn alloying element in the copper alloy, and the problem of wettability difference between cast iron matrix and the copper alloy.According to physicochemical reaction under the plasma-arc welding effect, the invention provides the copper-based alloy powder material of several groups of different components, see Table one, table two, table three:
In several groups of new copper-based alloy powder materials that more than provide, add alloying elements such as a certain amount of Si, Cr, Mn, Ni, can form sosoloid and intermetallic compound with copper, can form sosoloid or intermetallic compound with cast iron again, thereby reduced the interfacial tension of copper liquid and cast iron, improved the wettability between copper alloy and the cast iron and the intensity of layer.Simultaneously under the effect of electric arc, P, Mn, Si in copper liquid with copper powder in copper powder in remaining Cu
2Behind the oxide compound generation oxidation-reduction reactions such as O, form one deck composite oxide film, braze layer is played provide protection, and can suppress the scaling loss evaporation of alloying elements such as Zn, Sn effectively, and improved the stability of electric arc on the braze layer surface.The specific embodiment of copper alloy powder plasma-arc welding is: (one) dries copper powder: want the strict drying copper powder before the surfacing, the temperature and time of oven dry should be controlled at 150～200 ℃ * 1h～2h, bake out temperature can not be too big, otherwise the oxidation of copper powder helps forming pore; (2) regulate processing parameter: obtain through refining in the meeting at plasma-arc welding and carry out, regulate and adopt the positive polarity plasma arc surfacing.Its concrete processing parameter sees Table four:
The new copper-base alloy powder and the technology of the present invention's development, in test, obtained the ideal effect, compare with the technology of tradition processing low pressure valve, every performance index of the trim of its surfacing all are better than casting the copper ring trim, and can save copper material more than 60%, the finished product that improves four times of surfacing trims of work efficiency can reach more than 95%.Because processing method of the present invention adopts consing, therefore, the level of automation height, favorable reproducibility, this is that traditional edge circle technology and oxyacetylene torch manual build up welding and mechanize built-up welding are incomparable.
Implementing best method of the present invention is: the residual iron rust of at first eliminating Cast Iron Surface, impurity such as paint, secondly packed in the bronze gold powders end of oven dry in the powder feeder,, enable to obtain best technological effect according to the different weldment adjusting process parameters and the position of spray welding gun.
Table one:
Element Zn Sn P Si Cu
Surplus amount (%) 2～10 2～15 0.05～0.65 0.1～0.8
Table two:
Element Zn Sn P Si Cr Cu
Surplus amount (%) 2～10 2～15 0.05～0.65 0.1～0.8 0.2～1
Table three:
Element Zn Sn P Mn Ni Si Cu
Surplus amount (%) 2～10 2～15 0.05～0.65 2～5 1～10 0.1～0.8
Table four:
Electric current (A) argon gas (n
3/ h) powder sending quantity surfacing speed is put wide wobble frequency spray distance
Commentaries on classics arc non-arc ion gas powder feeding gas (g/min) (rev/min) (mm) (inferior/minute) (mm)
100 40 0.250.4
0.09～ 10～ 65～
/ / // 60～130 10～15
0.59 30 80
300 120 0.30.6
Claims (2)
1, a kind of on cast iron matrix, be that main body is used for the copper alloy powder plasma-arc welding powder with the copper powder, it is characterized in that containing Zn2-10%, Sn2-15%, Mn2-5%, Ni1-10%, Si0.1-0.8%, Cr0.2-1%, P0.05-0.65%.
2, a kind of method for spray-welding that subarc spray-welding copper alloy powder such as is used for, adopt the positive polarity plasma arc surfacing, processing parameters such as electric current, argon gas, powder sending quantity, surfacing speed, pendulum are wide, wobble frequency, spray distance, regulate by supervisory control desk, copper-base alloy powder is dried processing, it is characterized in that, it is 100-300 that electric current (A) changes arc, non-arc is 40-120, argon gas (m
3/ h) ion gas is 0.25-0.3, and powder feeding gas is 0.4-0.60, and powder sending quantity (g/min) is 60-130, surfacing speed (rev/min) be 0.09-0.59, putting wide (mm) is 10-30; Wobble frequency (inferior/minute) be 65-80; Spray is 10-15 apart from (mm), and the temperature and time of copper-base alloy powder oven dry should be controlled at 150-200 ℃ * 1h-2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86104601 CN1016710B (en) | 1986-07-03 | 1986-07-03 | Cast iron surface plasma arc spray welding copper alloy powder and spray welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86104601 CN1016710B (en) | 1986-07-03 | 1986-07-03 | Cast iron surface plasma arc spray welding copper alloy powder and spray welding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86104601A CN86104601A (en) | 1988-01-13 |
| CN1016710B true CN1016710B (en) | 1992-05-20 |
Family
ID=4802531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86104601 Expired CN1016710B (en) | 1986-07-03 | 1986-07-03 | Cast iron surface plasma arc spray welding copper alloy powder and spray welding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1016710B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179520A (en) * | 2011-04-08 | 2011-09-14 | 无锡市汉力士液压泵制品有限公司 | Preparation method of nodular cast iron-bronze composite material for cylinder body of plunger pump |
| CN102248358A (en) * | 2011-04-18 | 2011-11-23 | 常熟市建华模具有限责任公司 | Method for filling nickel-based alloy in glass die cavity with cast iron alloy as base matrix |
| CN103056486B (en) * | 2013-01-06 | 2015-02-25 | 昆山众备机械设备有限公司 | Numerical control surfacing process applied to TBM (tunnel boring machine) cutters |
| JP6030186B1 (en) | 2015-05-13 | 2016-11-24 | 株式会社ダイヘン | Copper alloy powder, manufacturing method of layered object, and layered object |
| CN105728922B (en) * | 2016-04-18 | 2018-10-30 | 华能国际电力股份有限公司 | Method suitable for plasma spray welding of nickel-based alloy powder for boiler pipeline |
| CN106041050A (en) * | 2016-07-21 | 2016-10-26 | 安徽旭晶粉体新材料科技有限公司 | Antioxidative manganiferous copper alloy powder prepared by water mist method |
| WO2018079304A1 (en) | 2016-10-25 | 2018-05-03 | 株式会社ダイヘン | Copper alloy powder, laminate molding production method, and laminate molding |
| CN107363387A (en) * | 2017-06-22 | 2017-11-21 | 常熟市兄弟玻璃模具有限公司 | A kind of overlaying method of glass mold |
-
1986
- 1986-07-03 CN CN 86104601 patent/CN1016710B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN86104601A (en) | 1988-01-13 |
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| C13 | Decision | ||
| GR02 | Examined patent application | ||
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| WD01 | Invention patent application deemed withdrawn after publication |