CN101337315A - Production method of copper-tungsten alloy conducting nozzle of cylindrical form - Google Patents
Production method of copper-tungsten alloy conducting nozzle of cylindrical form Download PDFInfo
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- CN101337315A CN101337315A CNA2008100482850A CN200810048285A CN101337315A CN 101337315 A CN101337315 A CN 101337315A CN A2008100482850 A CNA2008100482850 A CN A2008100482850A CN 200810048285 A CN200810048285 A CN 200810048285A CN 101337315 A CN101337315 A CN 101337315A
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Abstract
The invention relates to a method for producing a cylindrical copper tungsten current contact nozzle. The method comprises the steps of preparing an alloy material I and an alloy material II; respectively placing in blenders for complete and uniform agitation; agitating gasoline to enable the gasoline to volatilize; placing in an oven for baking; screening by a 40 mesh screen; calculating the weight of the alloy material I and the alloy material II required by the front part and the rear part of the current contact nozzle needing to be produced; weighing the alloy material I and the alloy material II; placing on the front part and the rear part of a die of the current contact nozzle; forming a cylindrical current contact nozzle shape through hydraulic pressure; adding current contact nozzle copper powder; placing in a graphite boat piece by piece at intervals; filling powdery alumina in the interval part and pressing solidly; conducting oxygen insulation sintering; pushing in and out through a motor; cooling; impacting powdery alumina; screening; obtaining a current contact nozzle blank; mechanically processing the blank into the current contact nozzle. The current contact nozzle of the invention has the advantages of high temperature resistance, working softening temperature of 1000DEG C or so, high hardness, abrasion resistance, long service life, high production benefit, low use cost and high welding quality.
Description
Technical field
The present invention relates to a kind of method with copper-tungsten production cylindrical conductive mouth.
Background technology
In the welding procedure of submerged-arc welding and qit4 protection weldering, use ignition tip in a large number.The effect of ignition tip is that after the assurance welding wire came out by welding equipment, weld job was carried out in the mounting technique requirement not weld seam of inclined to one side not liftoff eternal aligning welded article body.Because of ignition tip is directly adjacent to the weld seam operation, welding wire constantly comes out from the centre bore of ignition tip, thus to ignition tip conduct electricity very well, high temperature resistant, anti abrasive requirement.Bad because of electric conductivity, electric current does not reach requirement, can't weld; As non-refractory, easy deformation, influence operation; Key is wear-resistant, and because of after welding wire comes out by wire-feed motor, welding wire engrail, welding wire constantly come out from the ignition tip centre bore, and is big as the aperture mill, will depart from weld seam after welding wire comes out, the quality of influence welding; After aperture mill was big, welding wire and ignition tip also can be because of loose contacts, and cause the electric current shakiness, and the electric current shakiness not only influences welding equipment, also influences welding quality.Existing usefulness alloy production ignition tip, as " a kind of chrome copper " (Chinese patent application 200610135441), use and contain the chromium that weight ratio is 0.5-2.0%, the tellurium of 0.01-1.0, all the other are chrome copper manufacturing ignition tip, the electrode cap of copper and impurity." a kind of chrome zirconium copper alloy " (Chinese patent application 200610167589) used and contained the chromium that weight ratio is 0.5-2.0, the zirconium of 0.005-0.10%, and the tellurium of 0.01-1.0, all the other are that copper and impurity chrome zirconium copper alloy are made ignition tip." combined material of a kind of aluminum oxide dispersion copper and chrome copper " (Chinese patent application 200610171397), wherein combined material 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%; In the manufacture method of combined material, adopt the heat extruder extrusion molding, utilize lubricated combined material blank of glass and recipient during extruding, the electric terminal of core is partly used disperse copper, and the outside good chromium-copper of cold working of using is made ignition tip etc. as blank.
Summary of the invention
The objective of the invention is at above-mentioned present situation, aim to provide a kind ofly conduct electricity very well, high temperature resistant, wear-resistant, long service life can guarantee the production method of the copper-tungsten alloy conducting nozzle of cylindrical form of welding quality.
The implementation of the object of the invention is, the production method of copper-tungsten alloy conducting nozzle of cylindrical form, and its concrete steps are as follows:
1) with tungsten powder 100Kg, copper powder 11 ± 1Kg, tungsten powder 100Kg, copper powder 61 ± 1Kg are ready to two parts of alloy material I, II, and put into mixer respectively and stir,
2) compound that stirs is mixed No. 120 gasoline 6000 ± 2ml by 100Kg and stir again, gasoline volatilization then,
3) compound is put into oven for drying, crosses 40 mesh sieves,
4) the ignition tip front and rear portions of calculating required production is divided required alloy material I, the amount of II, takes by weighing required alloy material I, II, and respectively as for the forward and backward part of ignition tip grinding tool, grinding tool is put into hydraulic press, suppresses cylindrical conductive mouth apperance with 50 tons of pressure,
5) add the infiltration copper powder of ignition tip apperance weight 25-30% at alloy material I, in the graphite boat of 310 * 90 * 200mm that packs into piecemeal then, every interval 10 ± 0.1mm, the interval is filled, is made real with alumina powder, and covers with alumina powder, and graphite boat is put in the sintering furnace, under 1400 ℃ of-1500 ℃ of temperature, carry out the oxygen barrier sintering with hydrogen and nitrogen, each boat advances with motor, released in 1 hour, cooling smashes alumina powder, sieves, get the ignition tip blank
7) blank is by being machined into ignition tip.
The ignition tip of producing with the present invention can satisfy fully and welds requiredly, high temperature resistant, works softening temperature about 1000 ℃; Since adopt tungsten, the hardness height of tungsten own, wear-resistant, so the ignition tip of producing is wear-resistant; Be 3-15 times of present ignition tip service life.Long service life has been saved time of frequent replacing ignition tip, has alleviated working strength of workers, has improved productivity effect, has reduced use cost, has saved spending; Because of high temperature resistant, wear-resistant, can guarantee the not inclined to one side not center weld seam of liftoff alignment pieces of welding wire for a long time, guarantee the welding high-quality.
Description of drawings
Fig. 1 a, b are master, the side views with one of ignition tip of the present invention's production
Fig. 2 a, b are two master, side views of the ignition tip produced with the present invention
Fig. 3 is three a outline drawing of the ignition tip produced with the present invention
Fig. 4 is four a outline drawing of the ignition tip produced with the present invention
Fig. 5 is five a structural representation of the ignition tip produced with the present invention
Fig. 6 is five a outline drawing of the ignition tip produced with the present invention
The specific embodiment
With the plurality of specifications that the ignition tip of the present invention's production is listed just like accompanying drawing, long 25-70mm, diameter 8-20mm, center-hole diameter 1.2-6mm.Adopt wire vent segment length 5-10mm with tungsten powder 100Kg, copper powder 11 ± 1Kg alloy material I.
Concrete steps are as follows:
1) with tungsten powder 100Kg, copper powder 11 ± 1Kg, tungsten powder 100Kg, copper powder 61 ± 1Kg are ready to two parts of alloy material I, II, put into mixer respectively and stir, and tungsten powder is the tungsten powder of 6-6.5 micron, and copper powder is-200 purpose copper powders.
2) compound that stirs is mixed No. 120 gasoline 6000 ± 2ml by 100Kg and stir again, gasoline volatilization then,
3) compound is put into oven for drying, crosses 40 mesh sieves,
4) the ignition tip front and rear portions of calculating required production is divided required alloy material I, the amount of II, takes by weighing required alloy material I, II, and respectively as for the forward and backward part of ignition tip grinding tool, grinding tool is put into hydraulic press, suppresses cylindrical conductive mouth apperance with 50 tons of pressure,
5) add the infiltration copper powder of ignition tip apperance weight 25-30% at alloy material I, in the graphite boat of 310 * 90 * 200mm that packs into piecemeal then, every interval 10 ± 0.1mm, the interval is filled, is made real with alumina powder, and covers with alumina powder, and graphite boat is put in the sintering furnace, under 1400 ℃ of-1500 ℃ of temperature, carry out the oxygen barrier sintering with hydrogen and nitrogen, each boat advances with motor, released in 1 hour, cooling smashes alumina powder, sieves, get the ignition tip blank
7) blank is by being machined into ignition tip.
With reference to Fig. 1 a, b, ignition tip is cylindrical, and recess 3 is arranged in cylindrical back segment, cylindrical diameter 14mm, long 60mm, leading portion 1, i.e. wire vent segment length 10mm, back segment 2 long 50mm, centre bore 4 diameter 6mm, recess diameter 4mm.
With reference to Fig. 2 a, b, projection 5 is arranged, diameter 14mm, long 60mm, leading portion 1, i.e. wire vent segment length 10mm, back segment 2 long 50mm, centre bore 4 diameter 6mm, protruding 3 diameter 17.5mm in cylindrical back segment.
With reference to Fig. 3, leading portion and back segment be anterior to be taper 6,30 ° of taperings, and leading portion 1, i.e. wire vent segment length 10mm, center-hole diameter 3.2mm, back segment length 50mm, middle for the cross section is the combination of hexagon 7 and circle 8, afterbody has screw thread 9.
With reference to Fig. 4, leading portion has two tangent planes 10 relative, 90 ° with the back segment front portion, the long 15mm of tangent plane, and there is connecting thread 11 at the back segment rear portion, long 13mm, leading portion, i.e. wire vent segment length 8mm, center-hole diameter 4mm.
With reference to Fig. 5, body diameter 12mm, back segment trailer have projection 9, diameter 16mm, long 5mm, length overall 40mm, leading portion, i.e. wire vent segment length 8mm, center-hole diameter 4mm.
With reference to Fig. 6, leading portion and back segment be anterior to be taper 13, and the back segment middle part has two relative tangent planes, back segment rear portion that connecting thread 14 is arranged, leading portion, i.e. wire vent segment length 5mm, center-hole diameter 1.2mm.
Claims (2)
1, the production method of copper-tungsten alloy conducting nozzle of cylindrical form is characterized in that its concrete steps are as follows:
1) with tungsten powder 100Kg, copper powder 11 ± 1Kg, tungsten powder 100Kg, copper powder 61 ± 1Kg are ready to two parts of alloy material I, II, and put into mixer respectively and stir,
2) compound that stirs is mixed No. 120 gasoline 6000 ± 2ml by 100Kg and stir again, gasoline volatilization then,
3) compound is put into oven for drying, crosses 40 mesh sieves,
4) the ignition tip front and rear portions of calculating required production is divided required alloy material I, the amount of II, takes by weighing required alloy material I, II, and respectively as for the forward and backward part of ignition tip grinding tool, grinding tool is put into hydraulic press, suppresses cylindrical conductive mouth apperance with 50 tons of pressure,
5) add the infiltration copper powder of ignition tip apperance weight 25-30% at alloy material I, in the graphite boat of 310 * 90 * 200mm that packs into piecemeal then, every interval 10 ± 0.1mm, the interval is filled, is made real with alumina powder, and covers with alumina powder, and graphite boat is put in the sintering furnace, under 1400 ℃ of-1500 ℃ of temperature, carry out the oxygen barrier sintering with hydrogen and nitrogen, each boat advances with motor, released in 1 hour, cooling smashes alumina powder, sieves, get the ignition tip blank
7) blank is by being machined into ignition tip.
2, the production method of copper-tungsten alloy conducting nozzle of cylindrical form according to claim 1 is characterized in that tungsten powder is the tungsten powder of 6-6.5 micron, and copper powder is-200 purpose copper powders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100482850A CN100566917C (en) | 2008-07-04 | 2008-07-04 | The production method of copper-tungsten alloy conducting nozzle of cylindrical form |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100482850A CN100566917C (en) | 2008-07-04 | 2008-07-04 | The production method of copper-tungsten alloy conducting nozzle of cylindrical form |
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| Publication Number | Publication Date |
|---|---|
| CN101337315A true CN101337315A (en) | 2009-01-07 |
| CN100566917C CN100566917C (en) | 2009-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2008100482850A Expired - Fee Related CN100566917C (en) | 2008-07-04 | 2008-07-04 | The production method of copper-tungsten alloy conducting nozzle of cylindrical form |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978205A (en) * | 2013-02-07 | 2014-08-13 | 上海六晶金属科技有限公司 | Method for sintering green bodies of tungsten metal plates, molybdenum metal plates, tungsten alloy plates or molybdenum alloy plates |
| CN112570714A (en) * | 2020-12-04 | 2021-03-30 | 西安宝德九土新材料有限公司 | Preparation method of composite tungsten-copper contact tube |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1359875A (en) * | 1971-10-22 | 1974-07-10 | Klees H D | Contact nozzles for welding machines |
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2008
- 2008-07-04 CN CNB2008100482850A patent/CN100566917C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978205A (en) * | 2013-02-07 | 2014-08-13 | 上海六晶金属科技有限公司 | Method for sintering green bodies of tungsten metal plates, molybdenum metal plates, tungsten alloy plates or molybdenum alloy plates |
| CN112570714A (en) * | 2020-12-04 | 2021-03-30 | 西安宝德九土新材料有限公司 | Preparation method of composite tungsten-copper contact tube |
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| CN100566917C (en) | 2009-12-09 |
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Granted publication date: 20091209 Termination date: 20130704 |