CN100495585C - producing method of combined material of aluminum oxide fringing copper and chromium-copper alloy - Google Patents
producing method of combined material of aluminum oxide fringing copper and chromium-copper alloy Download PDFInfo
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- CN100495585C CN100495585C CNB2006101713976A CN200610171397A CN100495585C CN 100495585 C CN100495585 C CN 100495585C CN B2006101713976 A CNB2006101713976 A CN B2006101713976A CN 200610171397 A CN200610171397 A CN 200610171397A CN 100495585 C CN100495585 C CN 100495585C
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Abstract
This invention relates to a composite material of alumina dispersion copper and chrome-copper alloy, its manufacturing method and application, in which, the composite material is composed of alumina dispersion copper at the core and chrome-copper alloy surrounding the core, the volume percentage of the copper is 10-70% and that of the alloy is 30-90%. The manufacturing method includes: shaping them up by a thermal extruding machine, in which, when squeezing, a glass lubricated composite material blank and an extruding drum are used to meet the section ratio of them after extruding, and conductive nozzles and electrode caps used in welding machine are produced at low price, high accuracy and high material rate due to the high temperature strength and high conductivity of the material, dispersion copper used at part of the electric contact points of the core and chrome-copper as the blank outside.
Description
Technical field
The present invention relates to the combined material of a kind of aluminum oxide dispersion copper and chrome copper and manufacture method thereof, making the ignition tip that welding robot uses and the application of electrode cap.
Background technology
In copper, add small additions of chromium,, embody very high intensity and conductance by the chromium-copper after the solution treatment.Therefore be used in the material that bonding machine is used with ignition tip, the first-class electrical equipment contact of spot welding.
The ignition tip that bonding machine is used, electrode cap have various forms.The used bullet shaped ignition tip (1) of arc welding machine as shown in figure 14 (MGI or CO2 shield welder etc.): be that the center axial region has a through hole (2), send the electrode consumptive material of welding wire (3) by through hole (2).In the centre of ignition tip (1) and overcoat (4) thereof, feeding carbon dioxide, inert gases (5) such as Ar, He are under the protective gas, welding base metal (6).
Example: the diameter of axle direction at ignition tip (1) has one to be about 45mm, and bore is the through hole of 1.0mm.Welding wire (3) is that line directly is the steel wire of 0.9mm, and there are copper coating or antirust oil in this steel wire surface.Also have central part to be filled with the steel wire of solder flux.The chromium-copper that the material of ignition tip (1) now mainly uses, other also useful zirconium copper, chromium zirconium copper, beryllium copper, cathode copper, dispersion-strengthened Cu etc.
Aluminum oxide dispersion copper has (as accompanying drawing 15) superior hot properties, and is more crisp because nonmetal aluminium oxide in disperse in metal, causes more breakage failure in ignition tip, the first-class processing and forming of spot welding.Aluminium oxide in disperse in metal in addition, the manufacturing process complexity, so price is 3 times of chromium-copper.
Though aluminum oxide dispersion copper has superior hot properties, its manufacturing process complexity, material price is expensive, and ignition tip, the first-class processing and forming of spot welding are poor.
Summary of the invention
The purpose of this invention is to provide the contact site that a kind of disperse copper that utilizes good characteristic is used in electrode, other positions utilize processing and forming well to reach the combined material of high conductivity, high strength copper alloy.
In order to reach above-mentioned purpose, the present invention is implemented by following technical solution: the combined material of a kind of aluminum oxide dispersion copper and chrome copper, form by aluminum oxide dispersion copper that is positioned at core and the chrome copper that is coated on described core periphery, the percent by volume of described aluminum oxide dispersion copper is 10～70%, and the volume ratio of chrome copper is 30～90%; Wherein, the weight percentage of aluminium is 0.10～0.70% in the described aluminum oxide dispersion copper, and the weight percentage of chromium is 0.4～1.2% in the described chrome copper.
In order to reach the above-mentioned purpose of the present invention, the present invention can also further be implemented by following technical solution:
The manufacture method of the combined material of a kind of aluminum oxide dispersion copper and chrome copper comprises following technological process:
A, to get the chrome copper blank and stamp percent by volume at its core be 10～70% core hole;
B, in described core hole, insert disperse copper and form the combined material blank, the core hole of inserting disperse copper is vacuumized, again the two ends contact site of chrome copper blank and disperse copper in the described combined material blank is carried out sealing-in and make and keep vacuum state in the described core hole;
C, described combined material blank is placed in the recipient of heat extruder, 850～950 ℃ of following extrusion modlings;
In step c, before described extrusion process, between described recipient and described combined material blank, place glass and make contact site between its lubricated recipient and the combined material blank.
Copper alloy in first kind of technical scheme of the present invention is in the application that is used to make the ignition tip that welding robot uses.
Copper alloy in first kind of technical scheme of the present invention is in the application that is used to make the electrode cap that welding robot uses.
Beneficial effect of the present invention is: the present invention has superior elevated temperature strength and high conductivity as shown in Figure 15, the electric terminal of core is partly used disperse copper, the outside good chromium-copper of cold working of using is as blank, produce ignition tip, electrode cap that the electric welding machine of low price, high accuracy, high yield is used, particularly at high temperature have very high hardness, improved resistance to wear greatly with contact-making surfaces such as welding wires.Fig. 8 is mobile with the distortion of materials of the lubricated hot extrusion method of glass, and Fig. 9 is mobile with the distortion of materials of the lubricated hot extrusion method of glass.As can be seen from the figure have only the metal flow of extrusion billet even, just can obtain the certain sectional area ratio of extrusion billet.
Description of drawings
Accompanying drawing 2 is the structural representation of heat extruder;
Accompanying drawing 3 is the enlarged diagram of accompanying drawing 2 at the A place;
Accompanying drawing 4 is the cutaway view of chrome copper blank among the processing combined material embodiment of the present invention;
Accompanying drawing 5 is the cutaway view after the blank of accompanying drawing 4 passes through perforation processing;
Accompanying drawing 6 inserts the cutaway view of the combined material blank that forms behind the disperse copper for the blank of accompanying drawing 5;
Accompanying drawing 7 is the cross section lattice schematic diagram of combined material blank of the present invention;
Accompanying drawing 8 is the distortion of materials flow graph of combined material blank of the present invention hot extrusion method when not adopting glass lubricated;
Accompanying drawing 9 is that combined material blank of the present invention is at the distortion of materials flow graph that adopts the lubricated hot extrusion method of glass;
Accompanying drawing 10 is the cutaway view of cylindrical combined material billet among the processing ignition tip embodiment of the present invention;
Accompanying drawing 11 is the cutaway view after the billet in the accompanying drawing 10 passes through initial processing;
Accompanying drawing 12 is the cutaway view after the billet process in the accompanying drawing 11 is offered through hole;
The ignition tip cutaway view of accompanying drawing 13 for shaping in one embodiment of the present of invention
Accompanying drawing 14 is the fundamental diagram of ignition tip in the prior art;
The elevated temperature strength of accompanying drawing 15 aluminum oxide dispersion copper and conductance (characteristic);
Wherein: 10, chrome copper blank; 11, core hole; 12, disperse copper; 13, combined material blank;
14, contact site; 20, heat extruder; 21, recipient; 30, glass; 22, pressure ram;
7, cylindric billet; 71, circular cone boring; 72, screw thread; 73, through hole; 74, male cone (strobilus masculinus);
1, ignition tip; 2, through hole; 3, welding wire; 4, overcoat; 5, inert gas; 6, welding base metal;
A, disperse copper; B, chromium-copper;
HV, Vickers hardness; K, conductance; T, temperature;
℃, temperature unit %; IACS, conductance unit; Hr, chronomere (hour).
Embodiment
A kind of aluminum oxide dispersion copper as shown in Figure 1 and the combined material of chrome copper, it is made up of aluminum oxide dispersion copper that is positioned at core and the chrome copper that is coated on described core periphery, the percent by volume of described aluminum oxide dispersion copper is 25%, and the volume ratio of chrome copper is 75%; Wherein, the weight percentage of aluminium is 0.10～0.70% in the described aluminum oxide dispersion copper, and the weight percentage of chromium is 0.4～1.2% in the described chrome copper.
The manufacture method of the combined material of a kind of above-mentioned aluminum oxide dispersion copper and chrome copper, it comprises following technological process shown in Fig. 4～6:
A, to get chrome copper blank 10 and stamp percent by volume at its core be 10～70% core hole 11;
B, in described core hole 11, insert disperse copper 12 and form combined material blanks 13, in order to strengthen the compactness between disperse copper and the chromium-copper, the core hole 11 of inserting disperse copper 12 is vacuumized, again the two ends contact site 14 of chrome copper blank and disperse copper in the described combined material blank 13 is carried out sealing-in and make maintenance vacuum states in the described core hole 11;
C, described combined material blank 13 is placed in the recipient 21 of the heat extruder 20 shown in Fig. 2～3, and make contact site between its lubricated recipient 21 and the combined material blank 13 placing glass 30 between described recipient 21 and the described combined material blank 13, under 850～950 ℃, start pressure ram 22 combined material blank 13 is squeezed into as shown in Figure 1 bar.
Shown in Fig. 7～9, Fig. 7 is the cross section lattice schematic diagram with the combined material blank, Fig. 8 is the distortion of materials flow graph of hot extrusion method when not adopting glass lubricated, Fig. 9 is the distortion of materials flow graph with the lubricated hot extrusion method of glass, as can be seen from the figure, the metal flow of having only with glass extrusion billet when lubricated just evenly just can obtain the certain sectional area ratio of extrusion billet.
The above-mentioned aluminum oxide dispersion copper and the combined material of chrome copper can be used for making ignition tip, the electrode cap that welding robot is used.
The aluminum oxide dispersion copper that will make with the lubricated hot extrusion method of glass shown in Figure 10～13 and the combined material of chrome copper are processed into the ignition tip that the bullet shaped electric welding machine is used, and its detailed process is: at first, sawing cylindric billet 7 as shown in figure 10.Carry out initial processing then, processing one with reamer on an end of billet 7 is the circular cone boring 71 and the screw thread 72 on summit with billet 7 central points, through the billet 7 after the initial processing as shown in figure 11.And then offer a through hole 73 with drill bit at the central part of billet 7 again.Perforation processing is benchmark with the end face of billet 7 other ends, and the flexibility (off-centre) of the through hole 73 that wears can be holed from circular cone and 71 be found out.Process male cone (strobilus masculinus) 74 at last, the ignition tip that finally processes truncated cones shape ignition tip as shown in figure 13.
Claims (1)
1, the manufacture method of the combined material of a kind of aluminum oxide dispersion copper and chrome copper, the combined material of this aluminum oxide dispersion copper and chrome copper is made up of aluminum oxide dispersion copper that is positioned at core and the chrome copper that is coated on described core periphery, the percent by volume of described aluminum oxide dispersion copper is 10～70%, and the volume ratio of chrome copper is 30～90%; Wherein, the weight percentage of aluminium is 0.10～0.70% in the described aluminum oxide dispersion copper, and the weight percentage of chromium is 0.4～1.2% in the described chrome copper;
Described manufacture method comprises following technological process:
A, to get chrome copper blank (10) and stamp percent by volume at its core be 10～70% core hole (11);
B, in described core hole (11), insert disperse copper (12) and form combined material blank (13), the core hole (11) of inserting disperse copper (12) is vacuumized, again the two ends contact site (14) of chrome copper blank in the described combined material blank (13) and disperse copper is carried out sealing-in and make maintenance vacuum state in the described core hole (11);
C, described combined material blank (13) is placed in the recipient (21) of heat extruder (20), 850～950 ℃ of following extrusion modlings;
It is characterized in that: in step c, before described extrusion process, make contact site between its lubricated recipient (21) and the combined material blank (13) placing glass (30) between described recipient (21) and the described combined material blank (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101713976A CN100495585C (en) | 2006-12-25 | 2006-12-25 | producing method of combined material of aluminum oxide fringing copper and chromium-copper alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101713976A CN100495585C (en) | 2006-12-25 | 2006-12-25 | producing method of combined material of aluminum oxide fringing copper and chromium-copper alloy |
Publications (2)
| Publication Number | Publication Date |
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| CN1988054A CN1988054A (en) | 2007-06-27 |
| CN100495585C true CN100495585C (en) | 2009-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006101713976A Expired - Fee Related CN100495585C (en) | 2006-12-25 | 2006-12-25 | producing method of combined material of aluminum oxide fringing copper and chromium-copper alloy |
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| CN (1) | CN100495585C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101240387B (en) * | 2007-11-23 | 2010-10-13 | 中南大学 | Cu-Al2O3 nano strengthened dispersion alloy and preparation method thereof |
| CN107755864A (en) * | 2016-08-23 | 2018-03-06 | 天津维尔丁科技有限公司 | A kind of carbon dioxide gas arc welding ignition tip |
| CN111405955B (en) * | 2017-11-28 | 2022-03-22 | 日本碍子株式会社 | Conductive front end member and method for manufacturing the same |
| CN114054536B (en) * | 2020-08-03 | 2024-03-29 | 上海电缆研究所有限公司 | Copper-aluminum composite double-row continuous extrusion module and continuous extrusion machine |
| CN112171031A (en) * | 2020-09-15 | 2021-01-05 | 常州特尔玛枪嘴有限公司 | Conductive nozzle, composite bar thereof and manufacturing process |
| CN112267041B (en) * | 2020-10-26 | 2021-10-15 | 有研工程技术研究院有限公司 | Composite bar and preparation method and application thereof |
| CN112756414B (en) * | 2020-12-16 | 2022-04-12 | 湖南科技大学 | Device and method for preparing clad-structure metal composite material through bidirectional extrusion |
| CN114959343B (en) * | 2022-05-30 | 2024-03-29 | 河南科技大学 | Forging forming method of aluminum oxide dispersion strengthening copper-based composite material and composite blank |
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