CN104289799A - Narrow gap welding current contact nozzle with aluminum oxide insulating coating - Google Patents
Narrow gap welding current contact nozzle with aluminum oxide insulating coating Download PDFInfo
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- CN104289799A CN104289799A CN201410496408.2A CN201410496408A CN104289799A CN 104289799 A CN104289799 A CN 104289799A CN 201410496408 A CN201410496408 A CN 201410496408A CN 104289799 A CN104289799 A CN 104289799A
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- welding
- groove
- narrow gap
- ignition tip
- current contact
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/26—Accessories for electrodes, e.g. ignition tips
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
In the thick board or thick-wall pipeline welding process, a narrow gap groove is generally adopted for welding in order to improve production efficiency. Generally, the narrower a groove gap is, and higher the welding efficiency is. A wire feeding current contact nozzle adopted in consumable electrode gas shielded welding is generally made of copper alloy of yellow copper, red copper and chromium zirconium copper. In the welding process of a narrow gap groove workpiece, due to a workpiece assembly gap error, or a welding gun and groove center position error or demands of a welding process for swinging of a welding gun, the outer side of the current contact nozzle is very likely to make contact with the side wall of the groove for discharging, so that the current contact nozzle is burnt, and certain adverse impact is generated on the welding quality. In order to solve the problems, an insulating layer of the certain thickness is obtained on the outer side, deeply extending into the workpiece groove portion, of the current contact nozzle through a high-temperature aluminum oxide thermal spraying technology. In this way, no discharging is generated even when the outer side of the current contact nozzle makes contact with the inner side of the groove, and therefore the welding efficiency and stability of the narrow gap groove are greatly improved.
Description
Technical field
The present invention relates to a kind of narrow gap welding ignition tip with alumina insulating coating, belong to welding auxiliary equipment.
Background technology
In slab and posted sides pipeline welding, in order to enhance productivity, the normal Narrow sloping-glot that adopts welds.Generally groove gap is narrower, and welding efficiency is higher.The wire feed ignition tip adopted in gas metal-arc welding connects generally is made up of copper alloys such as brass, red copper, chromium zirconium copper.In the welding process of Narrow sloping-glot workpiece, due to the needs that workpiece group swings the deviation of the deviation in gap, welding gun and groove center or welding procedure Butt welding gun, be easy to outside ignition tip come in contact with groove sidewall and discharge, thus cause the scaling loss of ignition tip and welding quality produces certain negative effect.In order to solve this problem, this patent proposes: the outside going deep into workpiece grooves part at ignition tip obtains certain thickness insulating barrier by high temperature alumina plasma spray technology.Like this, be also unlikely to electric discharge phenomena occur even if ignition tip outer wall and groove madial wall come in contact, thus greatly improve welding efficiency and the stability of Narrow sloping-glot.Therefore, this technology should have practical and market application foreground preferably.
Summary of the invention
According to background technology, the object of the present invention is to provide a kind of narrow gap welding ignition tip with alumina insulating coating, ignition tip and welding work pieces can be carried out effective electric isolution by the aluminum oxide coating layer of this kind of ignition tip ignition tip surface spraying in the welding process of Narrow sloping-glot, thus ensure the stable of welding arc, prevent ignition tip from striking sparks because of side and cause scaling loss, to improve the welding efficiency in narrow gap welding.
To achieve these goals, the present invention adopts following technical scheme:
A kind of narrow gap welding ignition tip with alumina insulating coating, form primarily of narrow gap ignition tip (5) and ceramic coating (6), wherein: the version in narrow gap ignition tip (5) selects the ignition tip of all size and version, narrow gap ignition tip (5) to stretch into Narrow sloping-glot part outer surface according to welding requirements adopts aluminium oxide plasma spray technology to be covered with alumina insulating layer.
Owing to have employed technique scheme, tool of the present invention has the following advantages and effect:
(1) ignition tip version is unrestricted, can be various forms of narrow gaps ignition tip, and ignition tip material is unrestricted, can be the various copper materials such as brass, red copper, chromium zirconium copper;
(2) outer surface stretching into Narrow sloping-glot part at ignition tip adopts aluminium oxide plasma spray technology to be covered with alumina insulating layer, accomplishes effective electric isolution of ignition tip outer surface and Narrow sloping-glot inner surface.
Accompanying drawing explanation
Fig. 1 is the preparation method of the aluminum oxide coating layer related in the present invention;
Fig. 2 is the schematic diagram of the present invention's role in Narrow sloping-glot welding process;
In figure: 1-spray gun, 2-thermal-flame, 3-alumina powder, 4-narrow gap welding ignition tip, 5-narrow gap welding ignition tip, 6-alumina insulating coating, 7-welding work pieces one, 8-Narrow sloping-glot, 9-welding wire, 10-welding work pieces two.
Detailed description of the invention
Shown in Fig. 1, Fig. 2, a kind of narrow gap welding ignition tip with alumina insulating coating, form primarily of narrow gap ignition tip 5 and ceramic coating 6, the version of narrow gap ignition tip 5 selects the ignition tip of all size and version according to welding requirements, the length of Narrow sloping-glot is stretched into and high temperature alumina thermal spraying treatment is carried out to it in position according to it, in spraying process, alumina powder 3 is sprayed the relevant position of putting ignition tip 4 by thermal-flame 2 by thermal spraying gun 1.In welding process, the narrow gap welding ignition tip 5 sprayed should keep it to be positioned at Weld pipe mill position in welding process as far as possible, alumina insulating coating 6 can prevent the outer surface of ignition tip 5 from discharging because contacting with the inner surface of Narrow sloping-glot 8, even if occur because workpiece group is to gap deviation in welding process, ignition tip 5 and Narrow sloping-glot 8 that torch swingings etc. cause come in contact, the alumina ceramic insulating layer 6 of its spraying also can accomplish ignition tip 5 and welding work pieces 7, effective electric isolution of 10, ensure welding wire 9 and workpiece 7, the stability of welding arc and carrying out smoothly of welding process between 10.
Claims (2)
1. one kind has the narrow gap welding ignition tip of alumina insulating coating, form primarily of narrow gap ignition tip (5) and ceramic coating (6), it is characterized in that: the version in narrow gap ignition tip (5) selects the ignition tip of all size and version, narrow gap ignition tip (5) to stretch into Narrow sloping-glot outer surface according to welding requirements adopts aluminium oxide plasma spray technology to be covered with alumina insulating layer.
2. the narrow gap welding ignition tip with alumina insulating coating according to claim 1, is characterized in that: described ignition tip material is the various copper materials such as brass, red copper, chromium zirconium copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410496408.2A CN104289799A (en) | 2014-09-25 | 2014-09-25 | Narrow gap welding current contact nozzle with aluminum oxide insulating coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410496408.2A CN104289799A (en) | 2014-09-25 | 2014-09-25 | Narrow gap welding current contact nozzle with aluminum oxide insulating coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104289799A true CN104289799A (en) | 2015-01-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410496408.2A Pending CN104289799A (en) | 2014-09-25 | 2014-09-25 | Narrow gap welding current contact nozzle with aluminum oxide insulating coating |
Country Status (1)
| Country | Link |
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| CN (1) | CN104289799A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104923895A (en) * | 2015-06-26 | 2015-09-23 | 武汉纳瑞格智能设备有限公司 | Semi-automatic ultra-narrow gap MAG/MIG welding welding gun |
| CN105108403A (en) * | 2015-09-15 | 2015-12-02 | 常州特尔玛枪嘴有限公司 | Vulnerable part of welding gun and surface treatment method of vulnerable part |
| CN106216818A (en) * | 2016-08-22 | 2016-12-14 | 上海航天设备制造总厂 | The narrow gap MIG welding method of big thick aluminium alloy |
| CN109623096A (en) * | 2019-02-25 | 2019-04-16 | 焦作智造机电设备有限公司 | Narrow gap welding fixture unit and the narrow gap welding method for being electrolysed aluminum steel pawl |
| WO2020019576A1 (en) * | 2018-07-27 | 2020-01-30 | 屈波 | Welding method and device for automatic narrow gap tig welding based on pendulum-like movement of welding torch |
| CN110952104A (en) * | 2019-08-19 | 2020-04-03 | 西南交通大学 | Method for preparing deep narrow gap consumable electrode gas shielded welding contact tip |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11207464A (en) * | 1997-11-19 | 1999-08-03 | Yashima Denki Co Ltd | Contact tip for gas shield arc welding |
| CN2801366Y (en) * | 2005-03-23 | 2006-08-02 | 江苏科技大学 | Non-circular section spray nozzle used for narrow gap non melted gas protection welding gun |
| CN102151955A (en) * | 2011-03-01 | 2011-08-17 | 兰州理工大学 | Ultra-narrow gap welding device and method for U-shaped flux strip constraining arc |
| CN202877704U (en) * | 2012-10-29 | 2013-04-17 | 常州市海宝焊割有限公司 | Contact nozzle for gas shielded welding |
| KR20140061324A (en) * | 2014-01-08 | 2014-05-21 | (주)동화웰딩 | Welding tip and manufacturing method thereof |
-
2014
- 2014-09-25 CN CN201410496408.2A patent/CN104289799A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11207464A (en) * | 1997-11-19 | 1999-08-03 | Yashima Denki Co Ltd | Contact tip for gas shield arc welding |
| CN2801366Y (en) * | 2005-03-23 | 2006-08-02 | 江苏科技大学 | Non-circular section spray nozzle used for narrow gap non melted gas protection welding gun |
| CN102151955A (en) * | 2011-03-01 | 2011-08-17 | 兰州理工大学 | Ultra-narrow gap welding device and method for U-shaped flux strip constraining arc |
| CN202877704U (en) * | 2012-10-29 | 2013-04-17 | 常州市海宝焊割有限公司 | Contact nozzle for gas shielded welding |
| KR20140061324A (en) * | 2014-01-08 | 2014-05-21 | (주)동화웰딩 | Welding tip and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
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| 王成文: "《焊接修复技术及案例分析》", 31 January 2014, 山西科学技术出版社 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104923895A (en) * | 2015-06-26 | 2015-09-23 | 武汉纳瑞格智能设备有限公司 | Semi-automatic ultra-narrow gap MAG/MIG welding welding gun |
| CN104923895B (en) * | 2015-06-26 | 2018-01-09 | 武汉纳瑞格智能设备有限公司 | A kind of semi-automatic ultra-narrow gap MAG/MIG welderings welding gun |
| CN105108403A (en) * | 2015-09-15 | 2015-12-02 | 常州特尔玛枪嘴有限公司 | Vulnerable part of welding gun and surface treatment method of vulnerable part |
| CN106216818A (en) * | 2016-08-22 | 2016-12-14 | 上海航天设备制造总厂 | The narrow gap MIG welding method of big thick aluminium alloy |
| WO2020019576A1 (en) * | 2018-07-27 | 2020-01-30 | 屈波 | Welding method and device for automatic narrow gap tig welding based on pendulum-like movement of welding torch |
| US11845148B2 (en) | 2018-07-27 | 2023-12-19 | Bo QU | Device and method for automatic narrow gap TIG welding |
| CN109623096A (en) * | 2019-02-25 | 2019-04-16 | 焦作智造机电设备有限公司 | Narrow gap welding fixture unit and the narrow gap welding method for being electrolysed aluminum steel pawl |
| CN109623096B (en) * | 2019-02-25 | 2024-02-06 | 焦作智造机电设备有限公司 | Narrow gap welding fixture unit and narrow gap welding method for electrolytic aluminum steel claw |
| CN110952104A (en) * | 2019-08-19 | 2020-04-03 | 西南交通大学 | Method for preparing deep narrow gap consumable electrode gas shielded welding contact tip |
| CN110952104B (en) * | 2019-08-19 | 2021-09-03 | 西南交通大学 | Method for preparing deep narrow gap consumable electrode gas shielded welding contact tip |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150121 |
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| RJ01 | Rejection of invention patent application after publication |