CN101049613A - Mode for wire drawing electrode material of multielement composite rare earth tungsten - Google Patents
Mode for wire drawing electrode material of multielement composite rare earth tungsten Download PDFInfo
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- CN101049613A CN101049613A CN 200710099089 CN200710099089A CN101049613A CN 101049613 A CN101049613 A CN 101049613A CN 200710099089 CN200710099089 CN 200710099089 CN 200710099089 A CN200710099089 A CN 200710099089A CN 101049613 A CN101049613 A CN 101049613A
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- 239000002131 composite material Substances 0.000 title claims abstract description 14
- 238000005491 wire drawing Methods 0.000 title claims description 93
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title claims description 60
- 229910052721 tungsten Inorganic materials 0.000 title claims description 60
- 239000010937 tungsten Substances 0.000 title claims description 60
- 229910052761 rare earth metal Inorganic materials 0.000 title claims description 44
- 150000002910 rare earth metals Chemical class 0.000 title claims description 44
- 239000007772 electrode material Substances 0.000 title abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 52
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 230000008569 process Effects 0.000 claims description 49
- 238000012545 processing Methods 0.000 claims description 47
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 230000000630 rising effect Effects 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 11
- 229910052746 lanthanum Inorganic materials 0.000 description 9
- 239000000314 lubricant Substances 0.000 description 9
- 229910052727 yttrium Inorganic materials 0.000 description 9
- WLTSUBTXQJEURO-UHFFFAOYSA-N thorium tungsten Chemical compound [W].[Th] WLTSUBTXQJEURO-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- IADRPEYPEFONML-UHFFFAOYSA-N [Ce].[W] Chemical compound [Ce].[W] IADRPEYPEFONML-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- FAYUQEZUGGXARF-UHFFFAOYSA-N lanthanum tungsten Chemical compound [La].[W] FAYUQEZUGGXARF-UHFFFAOYSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- XHFLMVUWWQVXGR-UHFFFAOYSA-N tungsten yttrium Chemical compound [Y]=[W] XHFLMVUWWQVXGR-UHFFFAOYSA-N 0.000 description 2
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 1
- 229910052776 Thorium Inorganic materials 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
Abstract
A draw method for preparing the multi-element composite RE-W electrode material includes such steps as preheating the drawing dies to 500-550 deg.C, raising the furnace temp to 1175-1225 deg.C, making the heating power constant, sequentially drawing with the pre-heated phi 2.5, phi 2.0, phi 1.6 and phi 1.2 dies, regulating the heating powder of furnace to make the furnace temp be 875-925 deg.C, and drawing with phi 1.1 die.
Description
Technical field:
A kind of industrial drawing process of electrode material of multielement composite rare earth tungsten belongs to rare earth refractory metal functional material processing technique field.
Background technology:
Thorium tungsten electrode is widely used in fields such as welding, thermal spraying, thermal cutting and special source as electron source and ion gun, in view of thorium has naturally radioactive, it is produced and the use harm humans health that pollutes the environment, thereby seeks the research focus that the novel electrode material becomes researcher with human environmental consciousness enhancing.Rare earth oxide has low work function, thereby receive much attention, studies show that a small amount of rare-earth oxide that mixes can obviously reduce the material surface work function in tungsten, promote the electronics emission, unit rare-earth tungsten electrodes such as lanthanum-tungsten electrode, cerium tungsten electrode, yttrium tungsten electrode are succeeded in developing in succession, and push market, yet above-mentioned electrode material all has merits and demerits separately: lanthanum-tungsten electrode arc stability and electrode anti-scorching performance when medium and small current work is good, but its poor processability, scaling loss is serious when big electric current uses; The cerium tungsten electrode has good striking performance, yet can only be used under the little electric current welding situation, and scaling loss is serious under high current load; Arc pressure was big when the yttrium tungsten electrode used, and the anti-scorching performance of electrode is good when big current work, but its processing difficulties, and arc stability is poor when little electric current uses; Therefore can not substitute alpha-contamination thorium tungsten electrode comprehensively.
On unit rare-earth tungsten electrode research basis, developed electrode material of multielement composite rare earth tungsten again in succession, such material adds multiple rare earth oxide, when electrode is worked, various rare earth oxide actings in conjunction make electrode surface form a stable low work function active layer, thereby the welding performance of multiplex composite rare-earth tungsten electrode is better than the thorium tungsten electrode of same specification, yet rare earth when promoting the electronics emission serious change the mechanical property of tungsten basal body, the inhibition of the rare earth second relative tungsten crystal boundary makes the processing characteristics of rare-earth tungsten electrode very poor, especially for drawing process, the finished product rate is very low, about 60%, the production cost of great number causes not having multiplex composite rare-earth tungsten electrode to introduce to the market at present, has hindered the process of alternative thorium tungsten electrode.
Summary of the invention:
For above technical problem, the object of the present invention is to provide the high drawing process of finished product rate.
A kind of drawing process of suitable multiplex composite rare-earth tungsten electrode preparation is characterized in that, is made up of following steps:
1) wire drawing die is preheating to 500-550 ℃, when rising to 1175-1225 ℃ etc. furnace temperature, fixing heating power is that 3mm Rare-Earth Tungsten bar is put into chain drawbench and processed with diameter, and this Rare-Earth Tungsten bar composition is: contain La
2O
3, Y
2O
3And CeO
2The total weight percent content that every kind of rare earth oxide weight percent content is 0.4～1.4%, three kinds of rare earth oxides is 2～2.2%, and surplus is tungsten;
2) wire drawing adopts aquadag lubricated, select Φ 2.5 wire drawing dies to process, drawing speed is made as: 8.5-9.5m/min, process through Φ 2.0 wire drawing dies subsequently, drawing speed is: 11.5-12.5m/min, process through Φ 1.6 wire drawing dies then, drawing speed is: 12.5-13.5m/min, and then pass through Φ 1.2 wire drawing dies and process, drawing speed is: 14.5-15.5m/min, after the processing of Φ 1.2 wire drawing dies, adjust the power of heating furnace, make furnace temperature remain on 875-925 ℃, carry out the processing of Φ 1.0 wire drawing dies at last, drawing speed is: 15.5-16.5m/min.
Can process the multiplex composite rare-earth tungsten electrode of Φ 2.5-Φ 1.0 plurality of specifications by above technology; Integrated yield is more than 80%.
Φ 2.5 wire drawing dies of mentioning in the above-mentioned steps etc. are that the tool minimum machining diameter of fingering print or thumb print is 2.5mm, and Φ 2.5 specification tungsten electrodes refer to that the diameter of electrode is 2.5mm, indicate hereby.
Because the poor processability of tungsten is processed the tungsten material because of adopting thermal processing method, and tungsten has typically crystallization fragility again, therefore require processing temperature should be lower than the recrystallization temperature of tungsten material and the recovery temperature of a little higher than grain structure.For the drawing process of tungsten electrode, processing temperature will change with the variation of electrode material deflection, therefore the formulation of drawing process system becomes very complicated, have good electron emission capability though this also is an electrode material of multielement composite rare earth tungsten, the main cause of the product appearance of suitability for industrialized production is not arranged above the market.
The present invention is according to the influence rule of rare earth to the tungsten grain tissue, in conjunction with commerical test, a kind of drawing process of suitable electrode material of multielement composite rare earth tungsten is provided, the second phase particle that forms introducing owing to the interpolation rare earth can become dislocation source in the electrode material deformation process, cause increasing with deflection, defectives such as dislocation sharply increase, thereby the answer driving force of Deformation structure increases, recovery temperature reduces, processing temperature also should suitably reduce, thereby provided by the inventionly join molded degree, drawing speed and processing temperature are combined closely, electrode material of multielement composite rare earth tungsten is organized in the complicated continuous modification process of wire drawing Recovery Process is only taken place, defectives such as dislocation through climb and slippage cancel out each other, tissue is softened, and crystallization embrittlement more can not take place, thereby adopt this method, finished product rate height, and the wire-drawing temperature of the present invention's employing is lower than the wire-drawing temperature of traditional handicraft, power consumption reduces, therefore the high finished product rate low energy consumption is a major advantage of the present invention, this can directly reduce the production cost of multiplex composite rare-earth tungsten electrode, and lower cost advantage has also been quickened the process of the alternative thorium tungsten of such electron emission material of rare earth tungsten.
The specific embodiment
1. wire drawing die is preheating to 500 ℃ earlier, when rising to 1175 ℃ etc. furnace temperature, fixing heating power will be by weight percentage, and rare earth oxide content is 0.44%La
2O
3, 1.32%Y
2O
3, 0.44%CeO
2Surplus is that the Rare-Earth Tungsten screw mandrel of the diameter of phi 3 of tungsten is put on the chain drawbench and processed, the employing aquadag is lubricant, at first select Φ 2.5 wire drawing dies to process, drawing speed is made as: 8.5m/min, the silk material is processed through Φ 2.0 wire drawing dies subsequently, drawing speed is: 11.5m/min, process through Φ 1.6 wire drawing dies then, drawing speed is: 12.5m/min, and then process Φ 1.2 wire drawing dies are processed, drawing speed is: 14.5m/min, after the processing of Φ 1.2 wire drawing dies, adjust the power of heating furnace, make furnace temperature remain on 875 ℃.Carry out the processing of Φ 1.0 wire drawing dies then, drawing speed is: 15.5m/min, after each wire drawing die processing of experience, check that the screw mandrel diameter tolerance can not surpass ± 0.03, otherwise do over again after need repairing a die.Adopt the rare earth tungsten filament bar that above technology can processing and preparing Φ 2.5-Φ 1.0 plurality of specifications, integrated yield is 84%.
2. wire drawing die is preheating to 525 ℃ earlier, when rising to 1200 ℃ etc. furnace temperature, fixing heating power will be by weight percentage, and rare earth oxide content is 0.44%La
2O
3, 1.32%Y
2O
3, 0.44%CeO
2Surplus is that the Rare-Earth Tungsten screw mandrel of the diameter of phi 3 of tungsten is put on the chain drawbench and processed, the employing aquadag is lubricant, at first select Φ 2.5 wire drawing dies to process, drawing speed is made as: 9m/min, the silk material is processed through Φ 2.0 wire drawing dies subsequently, drawing speed is: 12m/min, process through Φ 1.6 wire drawing dies then, drawing speed is: 13m/min, and then process Φ 1.2 wire drawing dies are processed, drawing speed is: 15m/min, after the processing of Φ 1.2 wire drawing dies, adjust the power of heating furnace, make furnace temperature remain on 900 ℃.Carry out the processing of Φ 1.0 wire drawing dies then, drawing speed is: 16m/min, after each wire drawing die processing of experience, check that the screw mandrel diameter tolerance can not surpass ± 0.03, otherwise do over again after need repairing a die.Adopt the rare earth tungsten filament bar that above technology can processing and preparing Φ 2.5-Φ 1.0 plurality of specifications, integrated yield is 83%.
3. wire drawing die is preheating to 550 ℃ earlier, when rising to 1250 ℃ etc. furnace temperature, fixing heating power will be by weight percentage, and rare earth oxide content is 0.44%La
2O
3, 1.32%Y
2O
3, 0.44%CeO
2Surplus is that the Rare-Earth Tungsten screw mandrel of the diameter of phi 3 of tungsten is put on the chain drawbench and processed, the employing aquadag is lubricant, at first select Φ 2.5 wire drawing dies to process, drawing speed is made as: 9.5m/min, the silk material is processed through Φ 2.0 wire drawing dies subsequently, drawing speed is: 12.5m/min, process through Φ 1.6 wire drawing dies then, drawing speed is: 13.5m/min, and then process Φ 1.2 wire drawing dies are processed, drawing speed is: 15.5m/min, after the processing of Φ 1.2 wire drawing dies, adjust the power of heating furnace, make furnace temperature remain on 925 ℃.Carry out the processing of Φ 1.0 wire drawing dies then, drawing speed is: 16.5m/min, after each wire drawing die processing of experience, check that the screw mandrel diameter tolerance can not surpass ± 0.03, otherwise do over again after need repairing a die.Adopt the rare earth tungsten filament bar that above technology can processing and preparing Φ 2.5-Φ 1.0 plurality of specifications, integrated yield is 82%.
4. wire drawing die is preheating to 500 ℃ earlier, when rising to 1175 ℃ etc. furnace temperature, fixing heating power will be by weight percentage, and rare earth oxide content is 0.73%La
2O
3, 0.73%Y
2O
3, 0.73%CeO
2Surplus is that the Rare-Earth Tungsten screw mandrel of the diameter of phi 3 of tungsten is put on the chain drawbench and processed, the employing aquadag is lubricant, at first select Φ 2.5 wire drawing dies to process, drawing speed is made as: 8.5m/min, the silk material is processed through Φ 2.0 wire drawing dies subsequently, drawing speed is: 11.5m/min, process through Φ 1.6 wire drawing dies then, drawing speed is: 12.5m/min, and then process Φ 1.2 wire drawing dies are processed, drawing speed is: 14.5m/min, after the processing of Φ 1.2 wire drawing dies, adjust the power of heating furnace, make furnace temperature remain on 875 ℃.Carry out the processing of Φ 1.0 wire drawing dies then, drawing speed is: 15.5m/min, after each wire drawing die processing of experience, check that the screw mandrel diameter tolerance can not surpass ± 0.03, otherwise do over again after need repairing a die.Adopt the rare earth tungsten filament bar that above technology can processing and preparing Φ 2.5-Φ 1.0 plurality of specifications, integrated yield is 81%.
5. wire drawing die is preheating to 525 ℃ earlier, when rising to 1200 ℃ etc. furnace temperature, fixing heating power will be by weight percentage, and rare earth oxide content is 0.73%La
2O
3, 0.73%Y
2O
3, 0.73%CeO
2Surplus is that the Rare-Earth Tungsten screw mandrel of the diameter of phi 3 of tungsten is put on the chain drawbench and processed, the employing aquadag is lubricant, at first select Φ 2.5 wire drawing dies to process, drawing speed is made as: 9m/min, the silk material is processed through Φ 2.0 wire drawing dies subsequently, drawing speed is: 12m/min, process through Φ 1.6 wire drawing dies then, drawing speed is: 13m/min, and then process Φ 1.2 wire drawing dies are processed, drawing speed is: 15m/min, after the processing of Φ 1.2 wire drawing dies, adjust the power of heating furnace, make furnace temperature remain on 900 ℃.Carry out the processing of Φ 1.0 wire drawing dies then, drawing speed is: 16m/min, after each wire drawing die processing of experience, check that the screw mandrel diameter tolerance can not surpass ± 0.03, otherwise do over again after need repairing a die.Adopt the rare earth tungsten filament bar that above technology can processing and preparing Φ 2.5-Φ 1.0 plurality of specifications, integrated yield is 84%.
6. wire drawing die is preheating to 550 ℃ earlier, when rising to 1250 ℃ etc. furnace temperature, fixing heating power will be by weight percentage, and rare earth oxide content is 0.73%La
2O
3, 0.73%Y
2O
3, 0.73%CeO
2Surplus is that the Rare-Earth Tungsten screw mandrel of the diameter of phi 3 of tungsten is put on the chain drawbench and processed, the employing aquadag is lubricant, at first select Φ 2.5 wire drawing dies to process, drawing speed is made as: 9.5m/min, the silk material is processed through Φ 2.0 wire drawing dies subsequently, drawing speed is: 12.5m/min, process through Φ 1.6 wire drawing dies then, drawing speed is: 13.5m/min, and then process Φ 1.2 wire drawing dies are processed, drawing speed is: 15.5m/min, after the processing of Φ 1.2 wire drawing dies, adjust the power of heating furnace, make furnace temperature remain on 925 ℃.Carry out the processing of Φ 1.0 wire drawing dies then, drawing speed is: 16.5m/min, after each wire drawing die processing of experience, check that the screw mandrel diameter tolerance can not surpass ± 0.03, otherwise do over again after need repairing a die.Adopt the rare earth tungsten filament bar that above technology can processing and preparing Φ 2.5-Φ 1.0 plurality of specifications, integrated yield is 83%.
7. wire drawing die is preheating to 500 ℃ earlier, when rising to 1175 ℃ etc. furnace temperature, fixing heating power will be by weight percentage, and rare earth oxide content is 0.55%La
2O
3, 1.1%Y
2O
3, 0.55%CeO
2Surplus is that the Rare-Earth Tungsten screw mandrel of the diameter of phi 3 of tungsten is put on the chain drawbench and processed, the employing aquadag is lubricant, at first select Φ 2.5 wire drawing dies to process, drawing speed is made as: 8.5m/min, the silk material is processed through Φ 2.0 wire drawing dies subsequently, drawing speed is: 11.5m/min, process through Φ 1.6 wire drawing dies then, drawing speed is: 12.5m/min, and then process Φ 1.2 wire drawing dies are processed, drawing speed is: 14.5m/min, after the processing of Φ 1.2 wire drawing dies, adjust the power of heating furnace, make furnace temperature remain on 875 ℃.Carry out the processing of Φ 1.0 wire drawing dies then, drawing speed is: 15.5m/min, after each wire drawing die processing of experience, check that the screw mandrel diameter tolerance can not surpass ± 0.03, otherwise do over again after need repairing a die.Adopt the rare earth tungsten filament bar that above technology can processing and preparing Φ 2.5-Φ 1.0 plurality of specifications, integrated yield is 85%.
8. wire drawing die is preheating to 525 ℃ earlier, when rising to 1200 ℃ etc. furnace temperature, fixing heating power will be by weight percentage, and rare earth oxide content is 0.55%La
2O
3, 1.1%Y
2O
3, 0.55%CeO
2Surplus is that the Rare-Earth Tungsten screw mandrel of the diameter of phi 3 of tungsten is put on the chain drawbench and processed, the employing aquadag is lubricant, at first select Φ 2.5 wire drawing dies to process, drawing speed is made as: 9m/min, the silk material is processed through Φ 2.0 wire drawing dies subsequently, drawing speed is: 12m/min, process through Φ 1.6 wire drawing dies then, drawing speed is: 13m/min, and then process Φ 1.2 wire drawing dies are processed, drawing speed is: 15m/min, after the processing of Φ 1.2 wire drawing dies, adjust the power of heating furnace, make furnace temperature remain on 900 ℃.Carry out the processing of Φ 1.0 wire drawing dies then, drawing speed is: 16m/min, after each wire drawing die processing of experience, check that the screw mandrel diameter tolerance can not surpass ± 0.03, otherwise do over again after need repairing a die.Adopt the rare earth tungsten filament bar that above technology can processing and preparing Φ 2.5-Φ 1.0 plurality of specifications, integrated yield is 84%.
9. wire drawing die is preheating to 550 ℃ earlier, when rising to 1250 ℃ etc. furnace temperature, fixing heating power will be by weight percentage, and rare earth oxide content is 0.55%La
2O
3, 1.1%Y
2O
3, 0.55%CeO
2Surplus is that the Rare-Earth Tungsten screw mandrel of the diameter of phi 3 of tungsten is put on the chain drawbench and processed, the employing aquadag is lubricant, at first select Φ 2.5 wire drawing dies to process, drawing speed is made as: 9.5m/min, the silk material is processed through Φ 2.0 wire drawing dies subsequently, drawing speed is: 12.5m/min, process through Φ 1.6 wire drawing dies then, drawing speed is: 13.5m/min, and then process Φ 1.2 wire drawing dies are processed, drawing speed is: 15.5m/min, after the processing of Φ 1.2 wire drawing dies, adjust the power of heating furnace, make furnace temperature remain on 925 ℃.Carry out the processing of Φ 1.0 wire drawing dies then, drawing speed is: 16.5m/min, after each wire drawing die processing of experience, check that the screw mandrel diameter tolerance can not surpass ± 0.03, otherwise do over again after need repairing a die.Adopt the rare earth tungsten filament bar that above technology can processing and preparing Φ 2.5-Φ 1.0 plurality of specifications, integrated yield is 85%.
Claims (1)
1, a kind of drawing process of multiplex composite rare-earth tungsten electrode preparation is characterized in that, is made up of following steps:
1) wire drawing die is preheating to 500-550 ℃, when rising to 1175-1225 ℃ etc. furnace temperature, fixing heating power is that 3mm Rare-Earth Tungsten bar is put into chain drawbench and processed with diameter, and this Rare-Earth Tungsten bar composition is: contain La
2O
3, Y
2O
3And CeO
2The total weight percent content that every kind of rare earth oxide weight percent content is 0.4～1.4%, three kinds of rare earth oxides is 2～2.2%, and surplus is tungsten;
2) wire drawing adopts aquadag lubricated, select Φ 2.5 wire drawing dies to process, drawing speed is made as: 8.5-9.5m/min, process through Φ 2.0 wire drawing dies subsequently, drawing speed is: 11.5-12.5m/min, process through Φ 1.6 wire drawing dies then, drawing speed is: 12.5-13.5m/min, and then pass through Φ 1.2 wire drawing dies and process, drawing speed is: 14.5-15.5m/min, after the processing of Φ 1.2 wire drawing dies, adjust the power of heating furnace, make furnace temperature remain on 875-925 ℃, carry out the processing of Φ 1.0 wire drawing dies at last, drawing speed is: 15.5-16.5m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100990891A CN100429010C (en) | 2007-05-11 | 2007-05-11 | Mode for wire drawing electrode material of multielement composite rare earth tungsten |
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|---|---|---|---|
| CNB2007100990891A CN100429010C (en) | 2007-05-11 | 2007-05-11 | Mode for wire drawing electrode material of multielement composite rare earth tungsten |
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| CN101049613A true CN101049613A (en) | 2007-10-10 |
| CN100429010C CN100429010C (en) | 2008-10-29 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028620A (en) * | 2012-12-27 | 2013-04-10 | 中航(苏州)雷达与电子技术有限公司 | Thermode draw forming method |
| CN104438390A (en) * | 2014-11-26 | 2015-03-25 | 北京矿冶研究总院 | Double-wire drawing method of rare earth tungsten electrode material |
| CN104492836A (en) * | 2014-11-21 | 2015-04-08 | 北京工业大学 | Rare-earth tungsten electrically-aided drawing technological method |
| CN106734274A (en) * | 2017-01-24 | 2017-05-31 | 泰州法尔斯特不锈钢线有限公司 | A kind of drawing process of nuclear power metal hose |
| CN113215463A (en) * | 2021-01-20 | 2021-08-06 | 厦门虹鹭钨钼工业有限公司 | Alloy wire and preparation method and application thereof |
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| CN101868306A (en) * | 2007-11-21 | 2010-10-20 | 株式会社东芝 | The manufacture method of tungsten filament |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060709C (en) * | 1998-06-25 | 2001-01-17 | 北京工业大学 | Ternary compound rare-earth tungsten electrode material and its preparing process |
| CN1057569C (en) * | 1998-07-14 | 2000-10-18 | 北京矿冶研究总院 | Rare earth tungsten electrode material |
| JP2004273325A (en) * | 2003-03-10 | 2004-09-30 | Matsushita Electric Ind Co Ltd | Manufacturing method of discharge lamp |
| CN1274456C (en) * | 2004-09-30 | 2006-09-13 | 北京矿冶研究总院 | Preparation method of multicomponent composite rare earth-tungsten electrode material |
-
2007
- 2007-05-11 CN CNB2007100990891A patent/CN100429010C/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028620A (en) * | 2012-12-27 | 2013-04-10 | 中航(苏州)雷达与电子技术有限公司 | Thermode draw forming method |
| CN103028620B (en) * | 2012-12-27 | 2015-08-12 | 中航(苏州)雷达与电子技术有限公司 | Thermode drawing method for processing forming |
| CN104492836A (en) * | 2014-11-21 | 2015-04-08 | 北京工业大学 | Rare-earth tungsten electrically-aided drawing technological method |
| CN104438390A (en) * | 2014-11-26 | 2015-03-25 | 北京矿冶研究总院 | Double-wire drawing method of rare earth tungsten electrode material |
| CN106734274A (en) * | 2017-01-24 | 2017-05-31 | 泰州法尔斯特不锈钢线有限公司 | A kind of drawing process of nuclear power metal hose |
| CN113215463A (en) * | 2021-01-20 | 2021-08-06 | 厦门虹鹭钨钼工业有限公司 | Alloy wire and preparation method and application thereof |
| WO2022156216A1 (en) * | 2021-01-20 | 2022-07-28 | 厦门虹鹭钨钼工业有限公司 | Alloy wire, preparation method therefor and use thereof |
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|---|---|
| CN100429010C (en) | 2008-10-29 |
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