CN106914670B - A kind of Steel Thin-Wall leak hole method for welding - Google Patents
A kind of Steel Thin-Wall leak hole method for welding Download PDFInfo
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- CN106914670B CN106914670B CN201710033856.2A CN201710033856A CN106914670B CN 106914670 B CN106914670 B CN 106914670B CN 201710033856 A CN201710033856 A CN 201710033856A CN 106914670 B CN106914670 B CN 106914670B
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- welding
- leak hole
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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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/12—Vessels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention patent belongs to welding technology field, provides a kind of Steel Thin-Wall leak hole method for welding.This method includes cleaning out around leak hole；Connect ground wire；Adjust argon-arc welding gun welding current；Leak hole upper front places welding wire, and welding wire end is well contacted with thin-walled base material；Electric arc is moved to welding wire end along welding wire after the starting the arc by argon-arc welding gun starting the arc on welding wire；It melts to form the entire leak hole of position covering that molten drop is dropped in leak hole in welding wire end.The present invention provides a kind of new soldering processes, high-melting-point welding wire can be applied to soldering, realize the fusion repair welding of Steel Thin-Wall leak hole, and this method is highly suitable for plant maintenance emergency, and indirect economic effect has a high potential.
Description
Technical field
The invention patent belongs to welding technology field, in particular, provides a kind of Steel Thin-Wall leak hole method for welding.
Background technique
Ultra thin plate in machine-building and other production and living using quite universal, such as stainless steel corrugated connecting tube, stainless
Steel liquidometer floating ball, vehicle-mounted water tank, fuel tank, all kinds of buckets, oil drum and steel basin, tea mug, cookware etc..Since these material thickness are general
All in a few tenths of a mm, abrasion or mechanical injuries frequent occurrence, cause either large or small leak hole, form leakage in use
Gas, oil leak, leak etc. are not available so that scrapping.
These leak holes can not mostly use gas welding using conventional soldering techniques soldering such as arc welding or argon arc weldings since wall is thin
The method of soldering is repaired, but since brazing filler metal fusing point is low, ingredient and base material difference are big, can not with the good soldering of high-melting-point base material,
Even if repairing, also it is unable to reach that product is original to cause product that can only degrade use using function.
Summary of the invention
Technical problem solved by the present invention is provide a kind of Steel Thin-Wall leak hole method for welding, it can be achieved that Steel Thin-Wall weldering
It mends.
The method for welding step has: 1) cleaning out around leak hole；2) ground wire is connected to base material, it can also be with base material and weldering
Silk connects ground wire simultaneously；3) argon-arc welding gun electric current is adjusted；4) leak hole upper front places welding wire, and welding wire end well connects with base material
Touching；5) electric arc is moved to welding wire end along welding wire after the starting the arc by argon-arc welding gun starting the arc on welding wire；6) welding wire end melt to be formed it is molten
The position for being dropped in leak hole covers entire leak hole；7) argon-arc welding gun continue heat molten drop be allowed to and the complete soldering of base material；
Further, for thin-walled pressure vessel with a thickness of 0.05-3.0mm, the gage of wire is 2-3.2mm.
Further, TIG-J50 or H08Mn2 or H08A wlding can be selected in the welding wire.
Further, step 3) welding current is 10-60A.
The technological progress achieved by the present invention is:
The present invention extends steel vessel process for soldering, high-melting-point welding wire can be applied to soldering, provide one kind
New Steel Thin-Wall soldering processes；Thin-walled steel container leak hole can be achieved and fuse repair welding, weld strength is high, can fast recovery equipment reach
Production status.
This method is suitable for production, life Steel Thin-Wall leak hole repair welding, especially in terms of thin-walled pressure vessel maintenance of equipment, not only
Can quick processing equipment failure, and whole equipment can be saved.This method is highly suitable for thin-walled pressure vessel plant maintenance emergency,
It is huge to connect economic efficient latent.
Detailed description of the invention
Fig. 1 Steel Thin-Wall leak hole is brazed schematic diagram；
Wherein: 1- base material, 2 leak holes, 3- ground wire, 4- argon-arc welding gun, 5- welding wire.
Specific embodiment
Embodiment 1: vehicle-mounted water tank leak hole soldering
Vehicle-mounted water tank material is straight carbon steel, with a thickness of 0.2-0.5mm, due to being used for a long time by water quality or the shadow of environment
Ring, cause corrosion leak hole, these leak holes can not soldering cause vehicle-mounted water tank to scrap.This method can soldering save, reduce automobile
Maintenance cost.
As shown in Fig. 1,2 surrounding of water tank outside leak hole is cleared up the impurity such as greasy dirt, iron rust using sand paper or polishing machine
Completely, TIG-J50 or H08Mn2 or H08A welding wire are selected.Water tank connects ground wire 3 or water tank and welding wire 5 while connecting ground wire
3.One end of welding wire 5 is in close contact to the base material 1 of leak hole 2, the welding current of adjustment argon-arc welding gun 4 is 10-15A, and electric arc is welding
Striking on silk 5, the then leak hole end of rapid moving electric arc to welding wire 5,5 end of welding wire, which is melted, to be formed molten drop and is dropped on leak hole 2,
Entire leak hole 5 is covered, welding wire 5 is removed, argon-arc welding gun 4 continues heating molten drop and is allowed to and the complete soldering of thin-wall stainless steel base material 1.
For more important Steel Thin-Wall equipment, due to equipment ground line, during striking may due to welding wire with
Steel Thin-Wall contacts bad generation electric arc, and leak hole is caused to increase, so in such a way that welding wire and equipment are grounded simultaneously.Due to welding
Electric current is small, feasible when being connected using this ground wire, not will cause the unstable of electric arc.
The present invention extends process for soldering, high-melting-point welding wire can be applied to soldering, provide a kind of new soldering
Technique；The fusion repair welding of Steel Thin-Wall leak hole is realized, weld strength is high, long service life.
Embodiment 2: steel pipe leak hole soldering
Steel pipe thickness 2-3mm causes leak hole since corrosion or abrasion is used for a long time, although steel pipe thickness is relatively thick,
Thickness around leak hole can not use argon arc welding soldering since long-term abrasion or corrosion cause wall thickness reduction.
2 surrounding of leak hole is cleaned out the impurity such as iron rust with polishing machine, select diameter be 3.2mm TIG-J50 or
The welding current of H08Mn2 or H08A welding wire, steel pipe connecting ground line 3, adjustment argon-arc welding gun 4 is 45A, when welding, by welding wire 5
Base material 1 at end and leak hole 2 is in close contact, the striking on welding wire 5 of argon-arc welding gun 4, after striking, by electric arc rapidly along welding wire 5
The end being in close contact with leak hole 2 is moved on to, 5 end of welding wire, which is melted, to be formed molten drop and be dropped on leak hole 2, and entire leak hole 2 is covered, will
Welding wire 5 is removed, and argon-arc welding gun 4 continues heating molten drop and is allowed to and the complete soldering of steel pipe base material 1.
This method is suitable for production, life Steel Thin-Wall leak hole repair welding not only can quickly be located especially in terms of maintenance of equipment
Equipment fault is managed, and whole equipment can be saved.Although this method can not directly generate direct economic benefit, it is applicable in very much
It helps meet an urgent need in plant maintenance, indirect economic effect has a high potential.
Since the diameter of welding wire 5, the selection of argon arc welding electric current and mother metal thickness have direct relation, rule of thumb according to following table
It carries out selecting suitable gage of wire and welding current.
Claims (4)
1. a kind of Steel Thin-Wall leak hole method for welding, including the following steps:
1) it is cleaned out around leak hole (2)；
2) ground wire (3) is connected to base material (1) or ground wire (3) while connects base material (1) and welding wire (5)；
3) argon-arc welding gun (4) welding current is adjusted；
4) leak hole (2) upper front places welding wire (5), and welding wire (5) end is contacted with base material (1)；
5) argon-arc welding gun (4) starting the arc on welding wire (5) moves to electric arc and leak hole (2) close contact along welding wire (5) after the starting the arc
End；
6) welding wire (5) end melts to form the entire leak hole of position covering that molten drop is dropped in leak hole (2)；
7) argon-arc welding gun (4) continue heat molten drop be allowed to base material (1) complete soldering.
And 6) 2. Steel Thin-Wall leak hole method for welding according to claim 1, it is characterised in that: step 4), 5) welding wire
(5) TIG-J50 or H08Mn2 or H08A wlding are selected.
3. Steel Thin-Wall leak hole method for welding according to claim 1 or 2, it is characterised in that: the gage of wire is 2.0-
3.2mm。
4. Steel Thin-Wall leak hole method for welding according to claim 1, it is characterised in that: welding current described in step 3) is
10-60A。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710033856.2A CN106914670B (en) | 2017-01-18 | 2017-01-18 | A kind of Steel Thin-Wall leak hole method for welding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710033856.2A CN106914670B (en) | 2017-01-18 | 2017-01-18 | A kind of Steel Thin-Wall leak hole method for welding |
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| Publication Number | Publication Date |
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| CN106914670A CN106914670A (en) | 2017-07-04 |
| CN106914670B true CN106914670B (en) | 2019-04-12 |
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| CN201710033856.2A Active CN106914670B (en) | 2017-01-18 | 2017-01-18 | A kind of Steel Thin-Wall leak hole method for welding |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038115C (en) * | 1994-04-22 | 1998-04-22 | 国营二一一厂 | Cold-welding recovery method for thin wall of cast iron cylinder |
| CN1126630C (en) * | 2000-12-28 | 2003-11-05 | 南京宝色钛业有限公司 | Silver soldering method for red copper crucible |
| US7335427B2 (en) * | 2004-12-17 | 2008-02-26 | General Electric Company | Preform and method of repairing nickel-base superalloys and components repaired thereby |
| CN101559507B (en) * | 2009-04-17 | 2011-05-11 | 中国航空工业第一集团公司北京航空材料研究院 | Method for adopting copper-based solder to repair titanium alloy castings by welding |
| JP5777296B2 (en) * | 2010-06-21 | 2015-09-09 | 三菱重工業株式会社 | Brazing repair method and gas turbine high temperature parts |
| CN102615398B (en) * | 2012-03-20 | 2014-07-09 | 哈尔滨工业大学 | Perforated TIG (Tungsten Inert Gas) arc melting brazing method of dissimilar metal |
| CN103586560B (en) * | 2013-11-12 | 2018-01-23 | 哈尔滨东安发动机（集团）有限公司 | The repair method of crackle at a kind of combustion box mounting bracket |
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