CN202447814U - Welding groove - Google Patents
Welding groove Download PDFInfo
- Publication number
- CN202447814U CN202447814U CN2012200135062U CN201220013506U CN202447814U CN 202447814 U CN202447814 U CN 202447814U CN 2012200135062 U CN2012200135062 U CN 2012200135062U CN 201220013506 U CN201220013506 U CN 201220013506U CN 202447814 U CN202447814 U CN 202447814U
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- welding
- groove
- bevel
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- shaped groove
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Abstract
The utility model provides a welding groove, aiming at overcoming the defects of low efficiency and high energy consumption of a welding working procedure as well as easy deformation of welded welding assemblies owing to the fact that the welding groove is necessary to be subjected to carbon arc air gouging and polishing in the prior art. The welding groove comprises a Y-shaped groove and a U-shaped groove, wherein the Y-shaped groove is butted on a welding surface A of a butted welding piece; the U-shaped groove is arranged on a welding surface B; and the Y-shaped groove and the U-shaped groove are arranged oppositely. According to the welding groove adopting the structure, carbon arc gas gouging and polishing are unnecessary to carry out after welding.
Description
Technical field
The utility model belongs to welding technology field, is specifically related to a kind of bevel for welding.
Background technology
In the existing solder technology, the welding of submerged arc welding machine welding by both sides is adopted in the butt welding welding often, especially in the welding of heavy caliber thick wall pipeline and slab, adopts Y shape or U-shaped groove as shown in Figure 1 during welding more.Adopt this kind bevel for welding, have following deficiency: after first welding, the solder side C of groove needs to carry out carbon arc air gouging and polishing with carbon-point; So consumptive material consumptions such as welding wire, solder flux, emery wheel abrasive disc, carbon arc gas rod, lime are big, energy consumption is high, and human cost is high; Owing to be artificial polishing in bruting process, efficient is low simultaneously, and environmental pollution is serious; Reduced whole enterprise production efficiency, and carbon arc air gouging is easy to occur the carburizing phenomenon, influences product quality; The opposing party need adopt dark single V groove with root face, and the deflection of postwelding steel plate is bigger, is prone to cause the distortion of steel plate or shell ring postwelding outward appearance excessive, causes waste product or welding back quality low.
The utility model content
The purpose of the utility model is to carrying out carbon arc air gouging and polishing after the bevel for welding welding in the prior art; Make that welding sequence efficient is low; Energy consumption is high, and weldment is yielding deficiency after welding, and the bevel for welding that need not carry out carbon arc air gouging and polishing after a kind of welding is provided.
The purpose of the utility model realizes through following technical proposals:
A kind of bevel for welding; Comprise the last groove on the last solder side that weldment is set; Also comprise the following groove that is arranged on down on the solder side, described upward groove and described groove down are oppositely arranged, and described upward groove reaches down and is provided with root face D between groove; Described upward groove is uncovered shape groove, and described groove down is " U " shape groove;
The described groove of going up is a kind of in " U " shape groove, " Y " shape groove or " V " shape groove;
The described opening α that goes up groove (2) is 60 °-90 °;
The described opening α that goes up groove is 65 ° ± 5 °;
The arc radius R of described " U " type groove is 3-6.5mm.
Described root face length D is 5-6mm;
The described opening degree of depth A that goes up groove is 4-8mm;
The thickness H of weldment is 20-30mm;
The angle of inclination beta of described " U " type groove sidewall is 10 °-25 °.
When the bevel for welding of employing the utility model welds; Available plasma arc welding (PAW) combination semiautomatic submerged arc welding connects and replaces single submerged arc welding, and the length of utilizing plasma arc directly to melt after the welding to leave on the mother metal is the root face of D, reaches the purpose of direct welding weld seam; After the weld seam welding; Because be provided with " U " shape groove at following solder side, the radius of U-shaped groove is that the circular arc of R can not produce the welding dead angle when making down solder side adopt SAW to weld, and naked eyes just can be seen the quality situation of plasma arc welding (PAW) intuitively; Therefore do not need carbon arc air gouging or polishing, directly utilize submerged-arc welding to weld overleaf.Have the following advantages: 1. saved operations such as carbon arc air gouging, polishing, improved efficiency; 2. improve the outward appearance distortion of weld seam, improved the weldquality qualification rate; 3. save a part of wlding, carbon arc gas rod, emery wheel abrasive disc, power consumption etc., reduced the enterprise production cost; 4. improve working environment, reduced labour intensity.
Description of drawings
Fig. 1 is the structural representation of sheet material butt joint welding method in the prior art;
Fig. 2 is a welding process sketch map in the prior art;
The bevel for welding structural representation of Fig. 3 the utility model sheet material butt joint welding method;
The welding process sketch map of Fig. 4 the utility model welding method.
Description of reference numerals
The last solder side 2-of 1-goes up solder side 5-first road welding 6-second road welding 7-the 3rd road welding 8-the 4th road welding under the groove 4-under the groove 3-
The specific embodiment
Shown in Fig. 3-4, the groove of the utility model adopts by the last groove 2 and the corresponding combination groove that is arranged on down the following groove 3 on the solder side 4 that are arranged on the solder side 1, and reaching down at last groove 2,3 of grooves are provided with root face D; At first adopt plasma arc welding (PAW) (hereinafter to be referred as PAW) in last groove 2, to carry out the welding of first road; Mother metal is carried out welding; Then adopt submerged-arc welding or half submerged-arc welding (hereinafter to be referred as SAW) welding at many levels according to thickness of slab in the groove 3 down; In last groove, weld for the last time at last, i.e. cover welding with submerged-arc welding.When sheet metal thickness is 15-40mm; According to circumstances should adopt four layers or the more welding of multilayer; As shown in Figure 4, adopt PAW in last groove 2, to carry out first road welding 5 earlier, then adopt SAW carrying out second road welding the 6, the 3rd road welding 7 in the groove 3 down; In last groove 2, carry out 8 welding of the 4th road at last, accomplish welding sheet material with submerged-arc welding.
Last groove and following groove all can adopt the groove of uncovered shapes such as " Y " shape groove, " U " shape groove, V-butt, but above-mentioned groove combination in any forms the application's combination groove.
Adopting the last groove of the utility model is the groove of uncovered shape, and following groove is the U-shaped groove, the combination shape groove that last groove and following groove are connected with root face D; In last groove 2, weld with PAW; Welding with SAW in the groove 3 down, can reduce or when avoiding welding molten metal produce and weld the dead angle, therefore; Reduce during welding or avoided the welding vacuum, thereby can reduce or avoid weld defects such as incomplete fusion, interlayer; Because following groove 3 is oppositely arranged with last groove 2, and be separately positioned on solder side 1 and the following solder side 4, when adopting PLASMA ARC WELDING; Directly burn through root face D need not again following solder side 4 to be carried out gouge, need not to polish; The penetration situation that the while operating personnel can observe down groove has intuitively improved the accuracy of welding, has improved the quality of welding; So also need not to polish again, therefore saved the polishing operation.
It is " V " shape groove or " Y " shape groove that groove is gone up in preferential selection, and groove is the combination groove of " U " shape groove down.When adopting this kind combination groove; Because last groove is " Y " shape or " V " shape, following groove is " U " shape, leaves the R circular arc in the following groove 3; Molten metal does not have the dead angle when in following groove, adopting the SAW welding; Therefore can not produce the welding vacuum, avoid occurring weld defects such as incomplete fusion, interlayer, improve welding quality.
The opening α of preferred " V " shape groove or " Y " shape groove is 60 °-90 ° during welding, more preferably 65 ° ± 5 °, can guarantee like this shape of solder side welding pool to obtain good welding quality; The two side of U-shaped arc is preferably oblique sidewall, and the angle of inclination beta of preferred " U " shape groove sidewall is 10 °-25 °, and the weld width that can obtain to be fit to so also can reduce the welding penetration ratio; Root face length D is 5-6mm, can save the filling metal like this, reduces the cost input.It is the thick weldment of 20-30mm that the utility model groove is more suitable for throat thickness.
During welding, when the throat thickness of weldment is that the opening α of 20-30mm, " Y " shape groove is 65 ° ± 5 °, the angle of inclination beta of the two side of U-shaped arc is 10 °-25 °; When root face length D is 5-6mm; The opening degree of depth A of last groove is 4-8mm, and when the arc radius R of " U " shape groove was 3-6.5mm, this collocation can not only be avoided the welding vacuum; Thereby avoid weld defects such as incomplete fusion, interlayer, more can guarantee the welding quality of PAW plasma arc welding (PAW) penetration and the welding quality of SAW.
Bevel for welding structure after the combination does not re-use carbon arc air gouging, has avoided the carburizing generation of defects.
Following table 1 is divided edge structure embodiment.
Table 1: divided edge structure embodiment
Claims (9)
1. bevel for welding; Comprise the last groove (2) on the last solder side (1) that weldment is set, it is characterized in that, also comprise the following groove that is arranged on down on the solder side (4); Described upward groove (2) and described groove (3) down are oppositely arranged; Described upward groove reaches down and is provided with root face D between groove, and described upward groove (1) is uncovered shape groove, and described groove (2) down is " U " shape groove.
2. a kind of bevel for welding as claimed in claim 1 is characterized in that: describedly go up a kind of in " U " shape groove, " Y " shape groove or " V " shape groove of groove (1).
3. according to claim 1 or claim 2 a kind of bevel for welding, it is characterized in that: the described opening α that goes up groove (2) is 60 °-90 °.
4. a kind of bevel for welding as claimed in claim 3 is characterized in that: the described opening α that goes up groove (2) is 65 ° ± 5 °.
5. a kind of bevel for welding as claimed in claim 1 is characterized in that: the arc radius R of described " U " shape groove is 3-6.5mm.
6. a kind of bevel for welding as claimed in claim 1 is characterized in that: described root face length D is 5-6mm.
7. a kind of bevel for welding as claimed in claim 1 is characterized in that: the described opening degree of depth A that goes up groove (2) is 4-8mm.
8. a kind of bevel for welding as claimed in claim 1 is characterized in that: the thickness H of weldment is 20-30mm.
9. like claim 1 or 4 described a kind of bevel for weldings, it is characterized in that: the angle of inclination beta of described " U " shape groove sidewall is 10 °-25 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200135062U CN202447814U (en) | 2011-11-30 | 2012-01-12 | Welding groove |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120490636 | 2011-11-30 | ||
| CN201120490636.0 | 2011-11-30 | ||
| CN2012200135062U CN202447814U (en) | 2011-11-30 | 2012-01-12 | Welding groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202447814U true CN202447814U (en) | 2012-09-26 |
Family
ID=46863708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200135062U Expired - Fee Related CN202447814U (en) | 2011-11-30 | 2012-01-12 | Welding groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202447814U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530894A (en) * | 2018-11-23 | 2019-03-29 | 东方电气集团东方汽轮机有限公司 | A kind of method of sealing surface of seat plasma spray stellite |
-
2012
- 2012-01-12 CN CN2012200135062U patent/CN202447814U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530894A (en) * | 2018-11-23 | 2019-03-29 | 东方电气集团东方汽轮机有限公司 | A kind of method of sealing surface of seat plasma spray stellite |
| CN109530894B (en) * | 2018-11-23 | 2021-06-08 | 东方电气集团东方汽轮机有限公司 | Method for plasma spray welding stellite alloy on valve seat sealing surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG BOFAN POWER EQUIPMENT CO., LTD. Free format text: FORMER NAME: ZHEJIANG BOFINE POWER EQUIPMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Qingfeng South Qin Town Industrial Zone Jiaxing Haiyan County in Zhejiang province 314300 City Road Patentee after: ZHEJIANG BOFINE POWER EQUIPMENT LIMITED BY SHARE LTD. Address before: 314300, No. 2, Jincheng Industrial Zone, Qinshan County, Haiyan County, Zhejiang, Jiaxing Patentee before: Zhejiang Bofan Power Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20160112 |