RU1655285C - Method of electric arc heating of mixtures of gases containing oxygen - Google Patents
Method of electric arc heating of mixtures of gases containing oxygenInfo
- Publication number
- RU1655285C RU1655285C SU4189153A RU1655285C RU 1655285 C RU1655285 C RU 1655285C SU 4189153 A SU4189153 A SU 4189153A RU 1655285 C RU1655285 C RU 1655285C
- Authority
- RU
- Russia
- Prior art keywords
- supply unit
- gas supply
- electric arc
- working gas
- plasma
- Prior art date
Links
- 238000010891 electric arc Methods 0.000 title abstract description 4
- 239000007789 gas Substances 0.000 title description 6
- 239000000203 mixture Substances 0.000 title description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title description 2
- 238000010438 heat treatment Methods 0.000 title description 2
- 238000000034 method Methods 0.000 title description 2
- 239000001301 oxygen Substances 0.000 title description 2
- 229910052760 oxygen Inorganic materials 0.000 title description 2
- 230000001681 protective effect Effects 0.000 abstract description 5
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract 1
- 238000001311 chemical methods and process Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 238000004870 electrical engineering Methods 0.000 abstract 1
- 230000005284 excitation Effects 0.000 abstract 1
- 229910052735 hafnium Inorganic materials 0.000 abstract 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 abstract 1
- 238000007750 plasma spraying Methods 0.000 abstract 1
- 239000001294 propane Substances 0.000 abstract 1
- 229910052726 zirconium Inorganic materials 0.000 abstract 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
Изобретение относитс к электротехнике и может быть использовано дл нанесени покрытий различного назначени методом плазменного напылени а также в различных плазмохимических процессах Цель изобретени - увеличение ресурса электродов. Плазмотрон имеет стержневой термохимический катод 1 из гафни или циркони запрессованный в медную обойму 2, узел 3 подачи рабочего газа секции мржчпектродной вставки, между которыми помещены уплотнени 5 из изол ционного материала Между последней секцией межэлектродной вставки анодом 6 расположен узел 7 подачи защитного газа с распределительным кольцом 8. Перед возбуждением электрической дуги в плазмотроне в электродуговую камеру подаетс рабочий газ - воздух через узел 3 подачи рабочего газа а через узел 7 подачи защитного газа подаетс пропан с расходом 10 - 20% от общего расхода рабочего газа Распределительное кольцо 8 обеспечивает равномерное распределение защитного газа по всей поверхности анода 6 1 идThe invention relates to electrical engineering and can be used for coating coatings for various purposes by plasma spraying as well as in various plasma-chemical processes. The purpose of the invention is to increase the life of electrodes. The plasma torch has a rod-type thermochemical cathode 1 made of hafnium or zirconium pressed into a copper sleeve 2, a working gas supply unit 3 of the microwave insert section, between which are seals 5 made of insulating material. A protective gas supply unit 7 with a distribution ring is located between the last section of the interelectrode insert anode 6 8. Before excitation of the electric arc in the plasma torch, the working gas is supplied to the electric arc chamber — air through the working gas supply unit 3 and through the protective gas supply unit 7 Propane is given at a rate of 10 - 20% of total working gas flow distributor ring 8 ensures an even distribution of protective gas across the surface of the anode 1 June Id
Description
Формула, и зобре. тени Способ электродугового нагрева кисло- родосодержащих смесей газов, при котором в разр дную камеру плазмотрона подают рабочую смесь, а защитный газ подают в область прив зки дуги к электроду, о т л иFormula and Zobra. shadows A method of electric arc heating of oxygen-containing gas mixtures, in which a working mixture is fed into the discharge chamber of the plasma torch, and protective gas is supplied to the area of the arc to the electrode,
чающийс тем, что, с целью увеличени ресурса электродов, в качестве защитного-. газа используют горючий углеводородный газ и устанавливают его расход равным 10-20% от общего расхода газа.characterized in that, in order to increase the life of the electrodes, as a protective -. gas using combustible hydrocarbon gas and set its flow rate equal to 10-20% of the total gas flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4189153 RU1655285C (en) | 1986-12-22 | 1986-12-22 | Method of electric arc heating of mixtures of gases containing oxygen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4189153 RU1655285C (en) | 1986-12-22 | 1986-12-22 | Method of electric arc heating of mixtures of gases containing oxygen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RU1655285C true RU1655285C (en) | 1993-10-15 |
Family
ID=21283543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU4189153 RU1655285C (en) | 1986-12-22 | 1986-12-22 | Method of electric arc heating of mixtures of gases containing oxygen |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU1655285C (en) |
-
1986
- 1986-12-22 RU SU4189153 patent/RU1655285C/en active
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