CN102451946A - Stable welding method for argon arc welding of high-silicon-content silicon steel - Google Patents
Stable welding method for argon arc welding of high-silicon-content silicon steel Download PDFInfo
- Publication number
- CN102451946A CN102451946A CN2010105194221A CN201010519422A CN102451946A CN 102451946 A CN102451946 A CN 102451946A CN 2010105194221 A CN2010105194221 A CN 2010105194221A CN 201010519422 A CN201010519422 A CN 201010519422A CN 102451946 A CN102451946 A CN 102451946A
- Authority
- CN
- China
- Prior art keywords
- welding
- electrode
- arc
- argon arc
- electrode groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Arc Welding In General (AREA)
Abstract
The invention relates to a stable welding method for the argon arc welding of high-silicon-content silicon steel, which comprises the following steps: carrying out structural design on a welding inverse electrode for supporting the formation of weld seams, designing an electrode groove in the length direction on the upper surface of the welding inverse electrode, and designing the cross section of the electrode groove into a circular arc, wherein the width of the electrode groove is 4-10mm, the radius of the circular arc is 5.5-15.5mm, and the depth of the arc-shaped electrode groove is 0.6-3.6mm; and welding, and arranging a steel plate to be welded on the welding inverse electrode, wherein the welding seam clearance is 0.4-2.0mm, the welding speed is 1500-2900mm/min, the wire feed speed is 10-35m/min, and the fusion start set value and the fusion stop set value are respectively set to 0.1-1.5s and 0.2-2.0s. The stable welding method for the argon arc welding greatly improves the quality of lower surfaces of welding seams, the infused energy can be diffused more quickly, the abnormal growth of crystal grains can not be found in the thermal reaction region, and the mechanical property of the welding seams is greatly enhanced.
Description
Technical field
The present invention relates to solder technology, relate in particular to a kind of Si content and stablize welding method greater than the argon arc welding of 2% high silicon content silicon steel.
Background technology
The used welding machine of normalizing unit is a protective gas argon arc welding welding machine; With original solder technology is common reverse electrode when adding that original welding procedure is welded the electrical sheet of high silicon content, because welding quality is bad, and the as easy as rolling off a log broken belt that takes place in commissure when stove moves back in the overtension roller or the company of entering in the process of band steel operation; Each broken belt of handling is all wanted long time; Need the manpower and materials of labor, have a strong impact on the normal and stable direct motion of unit, production efficiency is low.
Silicone content is high more; Near the argon-arc welding seam the molten toughness of distinguishing of applying is just poor more; Can significantly see the phenomenon that in the thermal reaction area around the weld seam, has crystal grain clearly to grow up unusually in the metallographic structure photo of the high silicon material weld seam that welds out with the argon arc welding welding machine; The crystal grain of growing up unusually can make metallographic structure become and be highly brittle, and toughness is relatively poor, so weld seam is easily broken.
The reverse electrode welding back of original welding procedure finds that the upper surface quality of weld seam is very good; And the pattern of lower surface is very undesirable; Trace it to its cause, too high input energy can promote around the weld seam growing up unusually of crystal grain in the thermal reaction area with the higher silicon steel of argon arc welding welding silicone content the time, thereby causes the mechanical property of weld seam to become very crisp; Poor toughness, easily broken.Therefore, the energy that injects in the time of need trying every possible means effectively to dredge welding is optimized welding procedure, suppresses growing up unusually of crystal grain.
When under original welding procedure, welding the electrical sheet of high silicon content with protective gas argon arc welding welding machine, welding quality is very poor, and the as easy as rolling off a log broken belt that takes place in the commissure has a strong impact on the normal and stable direct motion of unit, and production efficiency is low.
Summary of the invention
The object of the present invention is to provide a kind of argon arc welding of high silicon content silicon steel to stablize welding method; Particularly Si content is greater than 2% high silicon content silicon steel; Weld seam lower surface quality is improved greatly; The energy that injects is able to spread faster, and no crystal grain is grown up unusually in the thermal reaction area, and the mechanical property of weld seam also improves greatly.
For achieving the above object, technical scheme of the present invention is,
Welding method is stablized in a kind of argon arc welding of high silicon content silicon steel; At first the welding reverse electrode that is used to support appearance of weld is carried out structural design; Upper surface as the welding reverse electrode designs a strip electrode groove along its length, and the slot electrode section is a circular arc, and its width is 4～10mm; The radius of its circular arc is 5.5～15.5mm, and the degree of depth of arc-shaped electrode groove is 0.6～3.6mm; Weld then; Steel plate to be welded is positioned on the welding reverse electrode, and weld gap is 0.4～2.0mm, speed of welding 1500～2900mm/min; Wire feed rate 10～35m/min begins to fuse setting value and stops to fuse setting value being made as 0.1～1.5s and 0.2～2.0s respectively.
Further, the lower surface of described welding reverse electrode also designs a strip electrode groove, and its structure is identical with upper surface electrode groove structure.
The welding reverse electrode is a quadrangle copper bar that is installed in the middle cartridge of welding beam, is connected with a utmost point of the source of welding current, as ground wire.Arc-shaped electrode groove of upper surface design at the electrode copper bar is used to support appearance of weld.
Slot electrode is designed to circular arc, and its width is 4～10mm.For weld gap is the argon arc welding silicon steel welding procedure of 0.4～2.0mm, and the slot electrode width of 2～12mm can make weld seam full, and inhibition thermoinduction district that again can be just right is to external diffusion.The degree of depth of arc-shaped electrode groove is 0.6-3.6mm, shoals gradually to both sides, and this degree of depth can guarantee that the weld seam center has enough energy to inject, and helps near the diffusion of the energy of weld seam again.
Arc-shaped slot is relatively evenly level and smooth, and energy is difficult for assembling, and can effectively dredge energy; Be difficult to form the high-energy district; Thereby suppress growing up unusually of crystal grain, simultaneously can the effective support appearance of weld, make the outward appearance of weld seam lower surface that very big improvement arranged; Because even, no abnormal the growing up of grain structure in thermoinduction district, its mechanical property has also had significant raising.
Weld the characteristics that high silicon material is prone to form at the weld seam annex high-temperature region to argon arc welding; Thereby the present invention considers the temperature that reduces thermal reaction area through suitable welding technique and stops grain growth; Therefore improved speed of welding and wire feed rate, reduced and begin to fuse setting value and stop to fuse setting value, purpose is exactly the temperature of reduction thermal reaction area.Through repetition test, find that working as speed of welding is 1500～2900mm/min, when wire feed rate was 10～35m/min, the quality of weld seam was better.
In addition; Weld gap also plays decisive influence to the quality of welding quality, and excesssive gap then can cause rosin joint, and the gap is too small then can to cause not weld penetration; The lower surface poor quality of weld seam; We have done further adjustment to weld gap, and when test found that weld gap is 0.4～2.0mm, welding quality was more satisfactory.
The quality of two end points of weld seam is extremely important, the starting the arc just and the place of receiving arc, in general; The energy that injects when the starting the arc and receipts arc is bigger, and high-energy can cause the interior crystal grain of the thermal reaction area of high silicon material to be grown up unusually, and becoming is highly brittle; Be easy to fracture; Also suitably adjusted for this reason and begin to fuse setting value and stop to fuse setting value, test finds, beginning to fuse setting value (arcing time) and stopping to fuse that setting value (receipts arc time) is made as 0.1～1.5s respectively and 0.2～2.0s is proper.
Beneficial effect of the present invention
Arc-shaped electrode groove that the present invention designed and supporting welding technique are compared with original welding procedure weld seam lower surface quality is improved greatly; The energy that injects is able to spread faster; No crystal grain is grown up unusually in the thermal reaction area; The mechanical property of weld seam also improves greatly; 90 degree cripping tests can not break yet, and the slot electrode of this arc-shaped structure cooperates appropriate welding parameter to make argon arc welding welding high silicon content silicon steel be able to stable smooth operation, have captured at one stroke with the argon arc welding welding machine and have welded the difficult problem that high silicon material can't stable smooth operation.
The stable and reliable product quality of argon arc welding welding of the present invention is saved noble metal, and production cost is low, and technology is simple, processing ease.
Description of drawings
Fig. 1 welds the structural representation of reverse electrode slot electrode for the present invention.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is further specified.
Referring to Fig. 1; The upper surface 11 that the present invention is used to support the welding reverse electrode 1 of appearance of weld designs a strip electrode groove 12 along its length; The slot electrode section is a circular arc, and its width W is 4～10mm, and the radius R of its circular arc is 5.5～15.5mm; The depth H of arc-shaped electrode groove is 0.6～3.6mm, shoals gradually to both sides.
The lower surface 13 of described welding reverse electrode 1 also designs a strip electrode groove 14, and its structure is identical with upper surface electrode groove 12 structures.
Table 1 welding procedure
Before welding, set parameters such as speed of welding, wire feed rate according to table 1, place two block plates that need butt welding on the reverse electrode copper bar; Attention is according to table 1 adjustment weld gap; Next adjust the position of welding gun, make welding wire, weld seam and the slot electrode of welding gun on same straight line, note the control starting the arc and the time of receiving arc afterwards; Promptly fuse setting value and stop to fuse setting value according to beginning in the table 1 and set, everything just can begin arc welding after setting.The newly-designed reverse electrode of this cover welding technique cooperation the present invention can be so that the weldquality of high silicon content (Si content is greater than 2%) silicon steel improves greatly, and its mechanical property significantly improves.
Table 2 is depicted as the welding quality situation that different welding conditions cooperate reverse electrodes, and welding parameter can obtain good weldquality (like embodiment 1,2) in table 1 restricted portion the time; In case welding parameter does not satisfy the limited range of table 1 simultaneously, the just tangible deterioration (like embodiment 3) of weldquality.
Table 2, the influence of different welding condition butt welded seam quality
The present invention has captured the technical barrier with the stable welding of argon arc welding technique high silicon content electrical sheet.Can be applied to have the unit of the high silicon material of other similar productions of argon arc welding machine fully; Widened the welding field of argon arc welding; Realized that production cost can reduce greatly, possesses high promotional value with the high silicon content silicon steel of cheap argon arc welding welding machine production high added value.
Claims (2)
1. welding method is stablized in the argon arc welding of a high silicon content silicon steel; At first the welding reverse electrode that is used to support appearance of weld is carried out structural design; The upper surface of welding reverse electrode designs a strip electrode groove along its length, and the slot electrode section is a circular arc, and its width is 4～10mm; The radius of its circular arc is 5.5～15.5mm, and the degree of depth of arc-shaped electrode groove is 0.6～3.6mm; Weld then; Steel plate to be welded is positioned on the welding reverse electrode, and weld gap is 0.4～2.0mm, speed of welding 1500～2900mm/min; Wire feed rate 10～35m/min begins to fuse setting value and stops to fuse setting value being made as 0.1～1.5s and 0.2～2.0s respectively.
2. welding method is stablized in the argon arc welding of high silicon content silicon steel as claimed in claim 1, it is characterized in that, the lower surface of described welding reverse electrode also designs a strip electrode groove, and its structure is identical with upper surface electrode groove structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010519422 CN102451946B (en) | 2010-10-25 | 2010-10-25 | Stable welding method for argon arc welding of high-silicon-content silicon steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010519422 CN102451946B (en) | 2010-10-25 | 2010-10-25 | Stable welding method for argon arc welding of high-silicon-content silicon steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102451946A true CN102451946A (en) | 2012-05-16 |
| CN102451946B CN102451946B (en) | 2013-07-17 |
Family
ID=46035858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010519422 Active CN102451946B (en) | 2010-10-25 | 2010-10-25 | Stable welding method for argon arc welding of high-silicon-content silicon steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102451946B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109982809A (en) * | 2016-08-17 | 2019-07-05 | 伊利诺斯工具制品有限公司 | Induction welding pearl configuration |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01104476A (en) * | 1987-10-15 | 1989-04-21 | Kawasaki Steel Corp | Low heat input one-face and one-layer welding method |
| CN1935438A (en) * | 2006-06-09 | 2007-03-28 | 浙江省火电建设公司 | P92 steel welding process |
| CN2923143Y (en) * | 2006-06-09 | 2007-07-18 | 比亚迪股份有限公司 | Argon-arc welder |
| CN101032780A (en) * | 2007-03-16 | 2007-09-12 | 唐山三友集团化纤有限公司 | 904L stainless steel welding method |
| CN101412142A (en) * | 2007-10-17 | 2009-04-22 | 沈阳黎明航空发动机(集团)有限责任公司 | Welding procedure of 0Cr11Ni2MoNbV light sheet material handwork tungsten electrode argon arc |
-
2010
- 2010-10-25 CN CN 201010519422 patent/CN102451946B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01104476A (en) * | 1987-10-15 | 1989-04-21 | Kawasaki Steel Corp | Low heat input one-face and one-layer welding method |
| CN1935438A (en) * | 2006-06-09 | 2007-03-28 | 浙江省火电建设公司 | P92 steel welding process |
| CN2923143Y (en) * | 2006-06-09 | 2007-07-18 | 比亚迪股份有限公司 | Argon-arc welder |
| CN101032780A (en) * | 2007-03-16 | 2007-09-12 | 唐山三友集团化纤有限公司 | 904L stainless steel welding method |
| CN101412142A (en) * | 2007-10-17 | 2009-04-22 | 沈阳黎明航空发动机(集团)有限责任公司 | Welding procedure of 0Cr11Ni2MoNbV light sheet material handwork tungsten electrode argon arc |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109982809A (en) * | 2016-08-17 | 2019-07-05 | 伊利诺斯工具制品有限公司 | Induction welding pearl configuration |
| US10987765B2 (en) | 2016-08-17 | 2021-04-27 | Illinois Tool Works Inc. | Induction weld bead shaping |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102451946B (en) | 2013-07-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101559515B (en) | Vacuum electron beam welding method | |
| CN109604831B (en) | Laser TIG (tungsten inert gas) hybrid welding process for improving laser welding undercut of titanium and titanium alloy sheets | |
| CN102229018B (en) | Argon arc welding method suitable for self connection of TiAl-based alloy material | |
| CN102935556A (en) | Laser and MIG (metal-inert gas) arc composited welding method for high-nitrogen steel | |
| CN103476536A (en) | Method for producing laser-welded steel tube | |
| CN101462194B (en) | Titanium and titanium alloy consumable electrode noble gas protective welding technique | |
| CN103551711B (en) | A kind of cut deal docking single track one side welding with back formation high-efficiency welding method | |
| CN103722279A (en) | Gas protection device for small-and-medium-thickness titanium alloy fusion welding under air environment | |
| CN201720590U (en) | Detached manual tracking welding protective drag cover | |
| CN104259635A (en) | Submerged arc welding technology for backing-weld-free connection of K-type groove | |
| CN105002493B (en) | A kind of not wide damage component multiple tracks uniformly overlaps laser melting coating restorative procedure | |
| CN102528241B (en) | Method for welding high-strength steel hydraulic support member | |
| CN102451946B (en) | Stable welding method for argon arc welding of high-silicon-content silicon steel | |
| CN103894703A (en) | Double-face arc welding process | |
| CN102069305A (en) | Laser twin-electric arc compound welding system | |
| CN108856969A (en) | Bevelled welding method is exempted from a kind of full submerged-arc welding of cut deal T junction | |
| CN104985306A (en) | Single power and double-thin wire submerged arc automatic welding process suitable for structural steel welding | |
| CN108067710A (en) | The efficient two pass submerged welding process of one kind 10 ~ 18mm thickness steel flux-cored wires | |
| CN108296638B (en) | Method for improving strip steel welding quality of continuous galvanizing production line | |
| CN109483021B (en) | Double-tungsten-electrode pulse TIG welding method | |
| CN111230265A (en) | Single-side forming welding method for aluminum alloy gasket | |
| CN103273262B (en) | One transfer floating platform jib plate welding and shaping methods | |
| JP2007237263A (en) | Electro-gas arc welding method | |
| CN104907657A (en) | TiAl/TC4 electronic-beam melting-brazing method with addition of alloy middle layer | |
| KR102175564B1 (en) | The gas tungsten arc welding method with improved welding speed and formability and the welding apparatus thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |