CN201524872U - Tail-gas protective shield for girth automatic welding of titanium alloys or high temperature alloys - Google Patents
Tail-gas protective shield for girth automatic welding of titanium alloys or high temperature alloys Download PDFInfo
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- CN201524872U CN201524872U CN2009202176756U CN200920217675U CN201524872U CN 201524872 U CN201524872 U CN 201524872U CN 2009202176756 U CN2009202176756 U CN 2009202176756U CN 200920217675 U CN200920217675 U CN 200920217675U CN 201524872 U CN201524872 U CN 201524872U
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- protective cover
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- protective shield
- cover housing
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Abstract
The utility model belongs to welding technology and relates to a tail-gas protective shield for girth argonaut welding of titanium alloys or high temperature alloys. The protective shield includes a protective shield casing (1), a gas inlet pipe (2) and a gas dispersing net (3); the protective shield casing (1) is a closed arc-shaped cavity, a degassing plate (5) is arranged on the lower surface of the protective shield casing (1), the aperture ratio of the degassing plate (5) can not be less than 80 percent, an air inlet pipe (2) is welded at the center of the upper surface of the protective shield casing (1), the gas dispersing net (3) is a metal net plate with 50-60 screen meshes, and the end surface of the protective shield casing (1), which is contact with a welding gun nozzle (6), is matched with a stepped end surface of the welding gun nozzle (6). The protective shield has wide protection range, solves the problems of effectively protecting welding seams during the argonaut welding of large and standard parts made of titanium alloys or high temperature alloys, enlarges the protection range of high-temperature welding seams and a high-temperature molten pool, and improves the quality of welding seams.
Description
Technical field
The utility model belongs to solder technology, relates to a kind of titanium alloy and superalloy annular argonaut welding trailing gas shield cover.
Background technology
Titanium alloy and high-temperature alloy material are extremely important to the protection in high temperature molten bath in welding process, and the particularly argon arc welding of titanium alloy material is bad if high temperature is protected down; very easily cause oxidation; make face of weld send out orchid or burnt hair, a large amount of pores of the inner generation of weld seam cause serious welding quality.From the physics and the chemical property of titanium alloy and high-temperature alloy material, titanium alloy is just energy and surrounding environment generation oxidation about 300 ℃.Because fusion temperature height, the thermal capacity of titanium are big, resistance coefficient is big, thermal conductivity is lower than metals such as aluminium, iron, so the welding pool of titanium has higher temperature, bigger pool width.The heat affected area metal time of staying at high temperature is long, therefore, is protecting improperly under the situation, easily causes the overheated tendency of welding point, makes grain coarsening big, the performance depreciation of joint.Simultaneously; the physics of titanium or titanium alloy, chemical property activity are by force; along with increasing of temperature; its chemism also will increase rapidly; and under solid-state, can absorb all gases consumingly; so must carry out safeguard measure when welding titanium alloy, in order to avoid molten titanium and active gases comprise contacting of airborne oxygen and nitrogen.For the welding of titanium alloy and high-temperature alloy material circular weld, conventional way is to adopt welding in electron-bombardment welding or the vacuum tank.But electron beam welding is relevant with design of part with the interior welding of vacuum tank; can not guarantee that all constitutional details all are suitable for; some big shape special construction parts particularly; must adopt high efficiency and the good argonaut welding of welding quality; and the GPF (General Protection False of argonaut welding mode is the nozzle ventilation protection that carries by automatic welding gun; the flow of protective gas is restricted; simultaneously; protection domain is very little; the scope of generally having only φ 12; and when part rotates with certain speed; the nozzle guard district of φ 12 is constantly left in the high temperature molten bath, enters the unprotect state, very easily with surrounding environment generation oxidation; cause the appearance of weld difference and produce intensive pore, can produce the weld seam of bean curd scoriform when serious.
Summary of the invention
The purpose of this utility model is: propose big titanium alloy of a kind of protection domain and superalloy annular argonaut welding trailing gas shield cover, by the uniform protection gas of discharging in the trailing gas shield cover, increase the delay protection to the high temperature molten bath, improve welding quality.
The technical solution of the utility model is: titanium alloy and superalloy annular weld the trailing gas shield cover automatically, it is characterized in that, it is made up of protective cover housing, air inlet pipe and diffusing gas net; The protective cover housing is the circular arc cavity of a sealing, the cross section of protective cover housing is rectangle or arch, the protective cover housing is made with the stainless steel materials welding, the lower surface of protective cover housing is an exhaustion plate, exhaustion plate is the face of cylinder, and the diameter on this face of cylinder is equal to, or greater than the face of cylinder diameter of soldered part, is uniform-distribution with steam vent on exhaustion plate, the percent opening of steam vent is not less than 80%, and the aperture of steam vent is not more than 2mm; Center at the upper surface of protective cover housing is welded with air inlet pipe, and the gas net that looses is that the aperture is 50～60 purpose metal otter boards, fits with the inner chamber of protective cover housing in the edge of the gas net that looses, and the thickness of diffusing gas net is 5～10mm; The end face that the protective cover housing contacts with torch neck is a step end face, and this step end face matches with the step end face of torch neck, the edge that exhaustion plate and torch neck are fitted and the end face of torch neck.
The utility model has the advantages that: protection domain is big; solved effective protection problem of large-scale, the regular part of titanium alloy and high-temperature alloy material butt welded seam in the argonaut welding process; strengthened protection domain, improved weldquality high temperature weld seam and high temperature molten bath.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below the present utility model is described in further details.Referring to Fig. 1, titanium alloy and superalloy annular weld the trailing gas shield cover automatically, it is characterized in that, it is made up of protective cover housing 1, air inlet pipe 2 and diffusing gas net 3; Protective cover housing 1 is the circular arc cavity of a sealing, the cross section of protective cover housing 1 is rectangle or arch, the welding of protective cover housing 1 usefulness stainless steel materials is made, the lower surface of protective cover housing 1 is an exhaustion plate 5, exhaustion plate 5 is the face of cylinder, and the diameter on this face of cylinder is equal to, or greater than the face of cylinder diameter of soldered part, is uniform-distribution with steam vent on exhaustion plate 5, the percent opening of steam vent is not less than 80%, and the aperture of steam vent is not more than 2mm; Center at the upper surface of protective cover housing 1 is welded with air inlet pipe 2, and the gas net 3 that looses is that the aperture is 50～60 purpose metal otter boards, fits with the inner chamber of protective cover housing 1 in the edge of the gas net 3 that looses, and the thickness of diffusing gas net 3 is 5～10mm; The end face that protective cover housing 1 contacts with torch neck 6 is a step end face, and this step end face matches with the step end face of torch neck 6, exhaustion plate 5 and the edge of torch neck 6 applyings and the end face of torch neck 6.
Central angle alpha=20 of said protective cover housing 1 circular arc °～60 °, the width of exhaustion plate 5 is 30～50mm.
Operation principle of the present utility model is: protection gas enters the cavity of protective cover housing 1 from air inlet pipe 2; under the effect of the gas net 3 that looses; air-flow on the gas net 3 that looses and below two-layer flowing lumen 4 and diffusing gas net 3 in abundant mobile; form uniform airflow; discharge from exhaustion plate 5 then, directly aim at weld seam protection.During use, by flexible pipe protective cover is connected with the protection source of the gas, hand-held air inlet pipe 2 is fitted end face and torch neck 6 that protective cover housing 1 has step, can weld.Also can weld then with protective cover by tying up or screw and torch neck 6 are connected to integral body.
Among the embodiment of the present utility model; the face of cylinder diameter of soldered part and the diameter of exhaustion plate 5 are 1160mm; the weld seam Breadth Maximum is 12mm; central angle alpha=60 of protective cover housing 1 circular arc °; bigger 10 times than the protection domain of not using protective cover; the width of exhaustion plate 5 is 50mm, enlarges 3 times than the protection domain of not using protective cover.The gas net 3 that looses is that the aperture is 50 purpose metal otter boards, and the thickness of the gas net 3 that looses is 10mm.From part actual welding situation, the titanium alloy component surface color that is welded can reach the silvery white standard of aviation one-level fully, the weld seam pore-free, and high temperature alloy part face of weld color all is golden yellow, appearance of weld is good.
Claims (2)
1. titanium alloy and superalloy annular weld the trailing gas shield cover automatically, it is characterized in that, it is made up of protective cover housing [1], air inlet pipe [2] and diffusing gas net [3]; Protective cover housing [1] is the circular arc cavity of a sealing, the cross section of protective cover housing [1] is rectangle or arch, protective cover housing [1] is made with the stainless steel materials welding, the lower surface of protective cover housing [1] is exhaustion plate [5], exhaustion plate [5] is the face of cylinder, and the diameter on this face of cylinder is equal to, or greater than the face of cylinder diameter of soldered part, is uniform-distribution with steam vent on exhaustion plate [5], the percent opening of steam vent is not less than 80%, and the aperture of steam vent is not more than 2mm; Center at the upper surface of protective cover housing [1] is welded with air inlet pipe [2], and the gas net [3] that looses is that the aperture is 50～60 purpose metal otter boards, fits with the inner chamber of protective cover housing [1] in the edge of the gas net [3] that looses, and the thickness of diffusing gas net [3] is 5～10mm; The end face that protective cover housing [1] contacts with torch neck [6] is a step end face, and this step end face matches with the step end face of torch neck [6], exhaustion plate [5] and the edge of torch neck [6] applying and the end face of torch neck [6].
2. trailing gas shield cover according to claim 1 is characterized in that, central angle alpha=20 of said protective cover housing [1] circular arc °～60 °, and the width of exhaustion plate [5] is 30～50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202176756U CN201524872U (en) | 2009-09-30 | 2009-09-30 | Tail-gas protective shield for girth automatic welding of titanium alloys or high temperature alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202176756U CN201524872U (en) | 2009-09-30 | 2009-09-30 | Tail-gas protective shield for girth automatic welding of titanium alloys or high temperature alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201524872U true CN201524872U (en) | 2010-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202176756U Expired - Fee Related CN201524872U (en) | 2009-09-30 | 2009-09-30 | Tail-gas protective shield for girth automatic welding of titanium alloys or high temperature alloys |
Country Status (1)
| Country | Link |
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| CN (1) | CN201524872U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103846530A (en) * | 2014-03-05 | 2014-06-11 | 北京航空航天大学 | Welding accessory mechanism aiming at weld porosity clearing of Ti-6Al-4V titanium alloy panel and HPVP-GTAW (Heat Pulse Velograph-Gas Tungsten Arc Welding) welding method |
| CN107378210A (en) * | 2017-09-18 | 2017-11-24 | 沈阳飞机工业（集团）有限公司 | A kind of argonaut welding weld seam front gas shield device |
| CN108145290A (en) * | 2017-12-18 | 2018-06-12 | 中国航发贵州黎阳航空动力有限公司 | A kind of device and welding method for ring-shaped thin-walled part welding protecting back face |
| CN109500476A (en) * | 2018-10-31 | 2019-03-22 | 沪东中华造船(集团)有限公司 | A kind of titanium or titanium alloy pipe argon arc welding welding protective cover and its application method |
| CN109590662A (en) * | 2019-01-07 | 2019-04-09 | 上海航天精密机械研究所 | Automatic soldering device and welding method is adjusted in titanium alloy barrel body circumferential weld |
| CN109909592A (en) * | 2019-03-15 | 2019-06-21 | 天津大学 | A kind of electric arc increasing material manufacturing adjustable hangover gas shield cover and its application method |
-
2009
- 2009-09-30 CN CN2009202176756U patent/CN201524872U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103846530A (en) * | 2014-03-05 | 2014-06-11 | 北京航空航天大学 | Welding accessory mechanism aiming at weld porosity clearing of Ti-6Al-4V titanium alloy panel and HPVP-GTAW (Heat Pulse Velograph-Gas Tungsten Arc Welding) welding method |
| CN103846530B (en) * | 2014-03-05 | 2018-08-14 | 北京航空航天大学 | A kind of welding attachment mechanisms and HPVP-GTAW welding methods for the removing of Ti-6Al-4V titanium alloy plate weld porosities |
| CN107378210A (en) * | 2017-09-18 | 2017-11-24 | 沈阳飞机工业（集团）有限公司 | A kind of argonaut welding weld seam front gas shield device |
| CN108145290A (en) * | 2017-12-18 | 2018-06-12 | 中国航发贵州黎阳航空动力有限公司 | A kind of device and welding method for ring-shaped thin-walled part welding protecting back face |
| CN109500476A (en) * | 2018-10-31 | 2019-03-22 | 沪东中华造船(集团)有限公司 | A kind of titanium or titanium alloy pipe argon arc welding welding protective cover and its application method |
| CN109590662A (en) * | 2019-01-07 | 2019-04-09 | 上海航天精密机械研究所 | Automatic soldering device and welding method is adjusted in titanium alloy barrel body circumferential weld |
| CN109590662B (en) * | 2019-01-07 | 2020-11-24 | 上海航天精密机械研究所 | Automatic welding device and welding method capable of adjusting circumferential seam of titanium alloy cylinder |
| CN109909592A (en) * | 2019-03-15 | 2019-06-21 | 天津大学 | A kind of electric arc increasing material manufacturing adjustable hangover gas shield cover and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUIZHOU LIYANG AERO-ENGINE CO., LTD. Free format text: FORMER OWNER: GUIZHOU LIYANG AERO ENGINE CO., LTD. Effective date: 20110415 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 561102 MAILBOX 5, PINGBA COUNTY, GUIZHOU PROVINCE TO: 561102 MAILBOX 207, PINGBA COUNTY, GUIZHOU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110415 Address after: 561102 Guizhou province Pingba County box 207 Patentee after: Guizhou Liyang Aerospace Power Co., Ltd. Address before: 561102 Guizhou province Pingba County box No. 5 Patentee before: Guizhou Liyang Aero Engine Co., Ltd. |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guizhou Liyang Tianxiang Technology Co., Ltd. Assignor: Guizhou Liyang Aerospace Power Co., Ltd. Contract record no.: 2012520000015 Denomination of utility model: Tail-gas protective shield for girth automatic welding of titanium alloys or high temperature alloys Granted publication date: 20100714 License type: Exclusive License Record date: 20120830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20150930 |
|
| EXPY | Termination of patent right or utility model |