CN108723622A - A kind of welding method of precise stainless steel strip material - Google Patents
A kind of welding method of precise stainless steel strip material Download PDFInfo
- Publication number
- CN108723622A CN108723622A CN201810544018.6A CN201810544018A CN108723622A CN 108723622 A CN108723622 A CN 108723622A CN 201810544018 A CN201810544018 A CN 201810544018A CN 108723622 A CN108723622 A CN 108723622A
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- CN
- China
- Prior art keywords
- welding
- stainless
- strip
- stainless strip
- overlapping part
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
Abstract
The present invention relates to a kind of welding methods of precise stainless steel strip material, belong to welding technology field, and the solid technical problem of welding procedure low production efficiency, not prison welding at two coiled steel plate lap positions, includes the following steps before and after solving in stainless strip cold-rolled process：A, the leader portion of the tail portion of preceding a roll of stainless strip and rear a roll of stainless strip is crimped on welding bench；B, stainless strip overlapping part compresses；C, stainless strip overlapping part welds；D, the position of steel band is adjusted；E, repeat the above steps a ~ c, in stainless strip overlapping part welding ground second weld seam parallel with first of weld seam.The present invention is by analyzing the various factors for influencing welding quality in welding process, welding procedure test is repeated, after the welding of this welding method, improve the welding quality of stainless strip, avoid that there is a phenomenon where not prison weldings to lead to broken belt, repetitive operation is reduced, the welder fault time is shortened, improves production efficiency.
Description
Technical field
It is special the invention belongs to the welding technology field in stainless strip cold-rolled process at front and back two coiled steel plate lap positions
It is not related to a kind of welding method of precise stainless steel strip material.
Background technology
Rolling mill production line is the continuity for ensureing production, and being needed in rewinding, bright annealing, strip cleaning process will be previous
The end of coil and the head of latter coil carry out butt welding.But since welding procedure is improper, cause weld interval long,
Production efficiency is reduced, nugget offset splashing damage equipment occurs during welding, broken belt etc. occurs for not prison welding raw what is more
Production accident.This not only causes the equipment maintenance cost of great number, also affects the quality of welding, reduce production it is normal into
Row.
Invention content
In order to overcome the shortcomings of the prior art, solves front and back two coiled steel plates in stainless strip cold-rolled process and overlap position
The solid technical problem of place's welding procedure low production efficiency, not prison welding is set, a kind of welding method of precise stainless steel strip material is provided.
The present invention is achieved by the following technical programs.
A kind of welding method of precise stainless steel strip material, includes the following steps：
A, the leader portion of the tail portion of preceding a roll of stainless strip and rear a roll of stainless strip is crimped on welding job
On platform, wherein the length of the front and back stainless strip lap of volume two is 50mm~80mm；
B, stainless strip overlapping part compresses：
It is compressed respectively with two pressing plates in the width direction of stainless strip overlapping part, weldering is set between two pressing plates
Wheel, welding wheel compress the overlapping part of stainless strip, and the rotating direction of welding wheel is vertical with the rolling direction of stainless strip；
C, stainless strip overlapping part welds：
Welding current is set as 2KA~5KA, and the pressure of welding wheel is set as 3~4.5bar, and the speed of welding wheel is set as 1600~
3200mm/min, welding cycle number are set as 3~4, and first of weld seam is welded to stainless strip overlapping part；
D, the position of steel band is adjusted so that first of the welding seam distance welded in lower one of weld pitch step c is 10mm~20mm；
E, repeat the above steps a ~ c, in stainless strip overlapping part welding ground second weld seam parallel with first of weld seam.
Further, in the step a, the leader portion of rear a roll stainless strip, need to be by steel band before overlap welding
The greasy dirt wiped clean on surface.
Further, the thickness of the stainless strip is 0.1mm≤h≤0.5mm.
Further, in the front and back stainless strips of volume two, the thickness of a roll of stainless strip is no more than another volume not
2 times of rust steel band thickness.
Further, in the step c, thickness of strips is：When 0.35mm≤thickness≤0.5mm, welding current be 4KA~
5KA, welding cycle are set as 4, and the pressure of welding wheel is set as 3~3.5bar, and the speed of welding wheel is set as 1600~2000mm/
min。
Further, in the step c, thickness of strips is：When 0.1mm≤thickness < 0.35mm, welding current be 2KA~
4.5KA, welding cycle are set as 3, and the pressure of welding wheel is set as 3.5~4.5bar, and the speed of welding wheel is set as 2000~
3200mm/min。
Further, in the step c, the selection of position while welding, which should avoid steel band face of weld, the position of oxide layer
It sets.
Beneficial effects of the present invention are compared with prior art：A kind of welding of precise stainless steel strip material provided by the invention
Method is repeated welding procedure test, summarizes by analyzing the various factors for influencing welding quality in welding process
Go out a set of effective welding technique.After the welding of this welding method, the welding quality of stainless strip is improved, is avoided
There is a phenomenon where not prison weldings to lead to broken belt, reduces repetitive operation, shortens the fault time of welding machine, improves production
Efficiency.
Description of the drawings
Fig. 1 is welded condition schematic diagram of the present invention.
In figure, 1 is preceding a roll of stainless strip, and 2 be pressing plate, and 3 be welding wheel, and 4 be rear a roll of stainless strip.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples.
Select type of stainless steel number for 301 volume two, thickness of strips 0.15mm of stainless steel belt material, steel in the present embodiment
Band hardness is 1/2H, and steel band tensile strength is 813MPa, and steel band head-tail is without surface oxidation, and surface is without oil stain.
Welding method at front and back two coiled steel plates lap position is as follows：
A, the leader portion of the tail portion of preceding a roll of stainless strip 1 and rear a roll of stainless strip 4 is crimped on Welder
Make on platform, wherein the length of the front and back stainless strip lap of volume two is 60mm；
B, stainless strip overlapping part compresses：
It is compressed respectively with two pressing plates 2 in the width direction of stainless strip overlapping part, prevents stainless strip from welding
Back and forth or left and right is moved in journey, and welding wheel 2 is arranged between two pressing plates 2, and welding wheel 2 is by the overlapping part pressure of stainless strip
Tightly；
C, stainless strip overlapping part welds：
Welding current is set as 3KA, and 3 pressure of welding wheel is set as 4bar, and 3 speed of welding wheel is set as 2800mm/min, welding cycle
Number（Cycle refers to a welding interval of how many a wave crests.）3 are set as, high current instantaneous herk is in stainless strip
Overlapping part, make stainless strip contact surface welding position rapid melting, as the movement of welding wheel 3 makes the weight of stainless strip
Folded position welding；
D, the position of steel band is adjusted so that the distance of one of weld seam is 10mm on lower one of weld pitch；
E, repeat the above steps a ~ c, completes second welding.
Postwelding inspection result：
There is a phenomenon where nuggets to splash during the welding process, weld bead height：0.5mm, weld length 610mm, weld width
5mm, 758 MPa of commissure tensile strength meet the needs of subsequent handling with tensile strength difference≤10% before welding.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
It is familiar with those skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in should all be contained
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (7)
1. a kind of welding method of precise stainless steel strip material, it is characterised in that include the following steps：
A, by preceding a roll of stainless strip（1）Tail portion and rear a roll of stainless strip（4）Leader portion be crimped on weldering
It connects on workbench, wherein the length of the front and back stainless strip lap of volume two is 50mm~80mm；
B, stainless strip overlapping part compresses：
Respectively with two pressing plates in the width direction of stainless strip overlapping part（2）It compresses, in two pressing plates（2）Between set
Set welding wheel（3）, welding wheel（3）The overlapping part of stainless strip is compressed, welding wheel（3）Rotating direction and stainless strip roll
Direction processed is vertical；
C, stainless strip overlapping part welds：
Welding current is set as 2KA~5KA, welding wheel（3）Pressure be set as 3~4.5bar, welding wheel（3）Speed be set as
1600~3200mm/min, welding cycle number are set as 3~4, and first of weld seam is welded to stainless strip overlapping part；
D, the position of steel band is adjusted so that first of the welding seam distance welded in lower one of weld pitch step c is 10mm~20mm；
E, repeat the above steps a ~ c, in stainless strip overlapping part welding ground second weld seam parallel with first of weld seam.
2. a kind of welding method of precise stainless steel strip material according to claim 1, it is characterised in that：In the step a,
A roll of stainless strip afterwards（4）Leader portion before overlap welding, need to be by the greasy dirt wiped clean of steel strip surface.
3. a kind of welding method of precise stainless steel strip material according to claim 1, it is characterised in that：The stainless steel band
The thickness of material is 0.1mm≤h≤0.5mm.
4. a kind of welding method of precise stainless steel strip material according to claim 3, it is characterised in that：It is described front and back volume two
In stainless strip, the thickness of a roll of stainless strip is no more than 2 times of another volume stainless strip thickness.
5. a kind of welding method of precise stainless steel strip material according to claim 1, it is characterised in that：In the step c,
Thickness of strips is：When 0.35mm≤thickness≤0.5mm, welding current is 4KA~5KA, and welding cycle is set as 4, welding wheel（3）
Pressure be set as 3~3.5bar, welding wheel（3）Speed be set as 1600~2000mm/min.
6. a kind of welding method of precise stainless steel strip material according to claim 1, it is characterised in that：In the step c,
Thickness of strips is：When 0.1mm≤thickness < 0.35mm, welding current is 2KA~4.5KA, and welding cycle is set as 3, welding wheel
（3）Pressure be set as 3.5~4.5bar, welding wheel（3）Speed be set as 2000~3200mm/min.
7. a kind of welding method of precise stainless steel strip material according to claim 1, it is characterised in that：In the step c,
The selection of position while welding, which should avoid steel band face of weld, the position of oxide layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810544018.6A CN108723622A (en) | 2018-05-31 | 2018-05-31 | A kind of welding method of precise stainless steel strip material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810544018.6A CN108723622A (en) | 2018-05-31 | 2018-05-31 | A kind of welding method of precise stainless steel strip material |
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| Publication Number | Publication Date |
|---|---|
| CN108723622A true CN108723622A (en) | 2018-11-02 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810544018.6A Pending CN108723622A (en) | 2018-05-31 | 2018-05-31 | A kind of welding method of precise stainless steel strip material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153581A (en) * | 2019-04-28 | 2019-08-23 | 首钢智新迁安电磁材料有限公司 | A kind of production method of paper-thin strip |
Citations (7)
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|---|---|---|---|---|
| JPH0352778A (en) * | 1989-07-18 | 1991-03-06 | Kawasaki Steel Corp | Method for welding steel strips |
| JP2003071567A (en) * | 2001-08-31 | 2003-03-11 | Nkk Corp | Splicing method for steel strip in continuous treatment line |
| JP2011011238A (en) * | 2009-07-02 | 2011-01-20 | Nisshin Steel Co Ltd | Lap-welding method of steel strip |
| CN104842056A (en) * | 2015-05-11 | 2015-08-19 | 唐山钢铁集团有限责任公司 | Narrow lap joint welding process for cold-rolled dual-phase steel strips |
| CN105618916A (en) * | 2016-03-21 | 2016-06-01 | 攀钢集团西昌钢钒有限公司 | Welding method for 980MPa-level cold-rolled dual-phase steel |
| CN107262889A (en) * | 2017-06-12 | 2017-10-20 | 攀钢集团西昌钢钒有限公司 | A kind of band steel welding method |
| CN107570908A (en) * | 2017-09-26 | 2018-01-12 | 肇庆宏旺金属实业有限公司 | A kind of steel band and steel band connection method and device |
-
2018
- 2018-05-31 CN CN201810544018.6A patent/CN108723622A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0352778A (en) * | 1989-07-18 | 1991-03-06 | Kawasaki Steel Corp | Method for welding steel strips |
| JP2003071567A (en) * | 2001-08-31 | 2003-03-11 | Nkk Corp | Splicing method for steel strip in continuous treatment line |
| JP2011011238A (en) * | 2009-07-02 | 2011-01-20 | Nisshin Steel Co Ltd | Lap-welding method of steel strip |
| CN104842056A (en) * | 2015-05-11 | 2015-08-19 | 唐山钢铁集团有限责任公司 | Narrow lap joint welding process for cold-rolled dual-phase steel strips |
| CN105618916A (en) * | 2016-03-21 | 2016-06-01 | 攀钢集团西昌钢钒有限公司 | Welding method for 980MPa-level cold-rolled dual-phase steel |
| CN107262889A (en) * | 2017-06-12 | 2017-10-20 | 攀钢集团西昌钢钒有限公司 | A kind of band steel welding method |
| CN107570908A (en) * | 2017-09-26 | 2018-01-12 | 肇庆宏旺金属实业有限公司 | A kind of steel band and steel band connection method and device |
Non-Patent Citations (1)
| Title |
|---|
| 王晓澜等: "《焊接工实用手册》", 31 March 2005 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153581A (en) * | 2019-04-28 | 2019-08-23 | 首钢智新迁安电磁材料有限公司 | A kind of production method of paper-thin strip |
| CN110153581B (en) * | 2019-04-28 | 2021-06-29 | 首钢智新迁安电磁材料有限公司 | Production method of ultra-thin strip steel |
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Application publication date: 20181102 |
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