CN101633071B - Butting welding method of stainless steel plate - Google Patents
Butting welding method of stainless steel plate Download PDFInfo
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- CN101633071B CN101633071B CN2009100744896A CN200910074489A CN101633071B CN 101633071 B CN101633071 B CN 101633071B CN 2009100744896 A CN2009100744896 A CN 2009100744896A CN 200910074489 A CN200910074489 A CN 200910074489A CN 101633071 B CN101633071 B CN 101633071B
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Abstract
The invention discloses a butting welding method of a stainless steel plate, sequentially comprising the following steps of: 1 removing the concave-convex parts at the material head and the material tail of the stainless steel plate or a stainless steel coil; 2 putting the material head of the welded stainless steel plate or the material head and the material tail of the stainless steel coil on a platform of a welding machine, and adjusting the gap between the two material heads; 3 selecting welding guns during welding; 4 adjusting welding voltage, wire feeding speed and welding speed; and 5 starting up a welding procedure and automatically welding. The method is characterized of adjusting the gap of the different welding sews, welding voltage, the wire feeding speed and the welding speed according to the thickness of the stainless steel plate or the stainless steel coil; when the thickness of the steel plate is larger than and equal to 8mm and is less than 12mm, welding with a fist welding gun and a second welding gun, wherein the voltage of the two welding guns are 28-30V; and when the thickness of the stainless steel plate is larger than and equal to 12 mm, welding with four welding guns. The method can weld the stainless steel plate with thickness of 8-14mm.
Description
Technical field
The present invention relates to a kind of butt joint welding method of corrosion resistant plate.
Background technology
The stainless thickness of domestic production at present all is not more than 6mm, width is not more than the thin in a narrow margin material of 1300mm, in welding process, adopt the welding method of the big voltage of big electric current, Zui Da wide cut stainless steel production line is after our factory is gone into operation in the world, and it is that the online butt joint that 8mm is above, width is the above rolling corrosion resistant plate of 1500mm is welded that the welding machine on new never carried out thickness.With the butt joint welding method of existing corrosion resistant plate in welding process, weld seam causes weld defect owing to a variety of causes, quality dissatisfaction, and qualification rate is not more than 60%, unit tension force in the time of can't satisfying online production more than 20 tons, thus unit in process of production weld cracking cause broken belt to stop.
Summary of the invention
In order to overcome the above-mentioned deficiency of the butt joint welding method that has corrosion resistant plate now, the invention provides a kind of butt joint welding method of corrosion resistant plate, use welding method of the present invention, the corrosion resistant plate of energy throat thickness 8mm～14mm, width 1500mm～2100mm, solder yield reaches 97%.
Stainless steel welding method of the present invention is different with the big big voltage of electric current in the conventional welding method, adopt rational current/voltage and speeds match, by adjusting weld gap and speed of welding, be specifically designed to thickness and be not less than the online butt joint welding that 8mm, width are not less than 1500mm rolling corrosion resistant plate.
The butt joint welding method of this corrosion resistant plate is to adopt argon arc welding to meet sb. at the airport, four welding guns that are arranged in a row are installed on bonding machine, four welding guns are followed successively by first welding gun, second welding gun, the 3rd welding gun and the 4th welding gun, and wherein first welding gun, second welding gun are one group, simultaneously action; The 3rd welding gun and the 4th welding gun are one group, and action also can be worked by four welding guns simultaneously simultaneously.
The butt joint welding method of this corrosion resistant plate comprises following sequential steps:
One, the uneven circular arc position of convex-concave of the stub bar (starting end of steel plate or coil of strip) of soldered corrosion resistant plate of excision or stainless steel coil of strip makes solder side smooth, and solder side is vertical with the plate face; Excise the uneven circular arc position of convex-concave of the material tail (tail end of steel plate or coil of strip) of another soldered piece corrosion resistant plate or stainless steel coil of strip, make solder side smooth, solder side is vertical with the plate face;
Two, be placed on the stub bar of a soldered corrosion resistant plate or the stub bar of stainless steel coil of strip on the platform of bonding machine with pinch roll, be placed on the material tail of another soldered piece corrosion resistant plate or the material tail of stainless steel coil of strip on the platform of bonding machine with pinch roll, regulate stub bar and the gap of expecting between the tail, the gap be positioned at welding gun under;
Used welding gun when three, selecting welding;
Four, regulate weldingvoltage, wire feed rate (speed that provides of welding wire) and speed of welding (translational speed of welding gun);
Five, start welding procedure, automatically welding.
The steps characteristic of the butt joint welding method of this corrosion resistant plate is when welding, according to the thickness of stainless-steel sheet or coil of strip, adjusts gap, the weldingvoltage of different weld seams, the speed of sending welding wire and speed of welding;
If the thickness of stainless-steel sheet or coil of strip is B, as 8mm≤thickness＜12mm, with first welding gun and the welding of second welding gun, the voltage of these two welding guns is 28V～30V; When the thickness of stainless-steel sheet 〉=12mm, with four welding guns welding, the voltage of first welding gun and second welding gun is 29V～30V, and the voltage of the 3rd welding gun and the 4th welding gun is 28V～32V; During welding, the relation between the speed of welding of gap, the voltage of welding gun, the wire feed rate of sending welding wire and welding gun between two welded steels or the coil of strip and the thickness of steel plate or coil of strip sees Table 1
Table 1
The steel plate different to throat thickness adopts following welding parameter better, and the relation between the thickness of gap, the voltage of welding gun, the wire feed rate of sending welding wire and speed of welding and steel plate or coil of strip between two welded steels or the coil of strip sees Table 2
Table 2
Annotate: voltage (V) is represented first welding gun, second welding gun, the 3rd welding gun and the 4th welding gun respectively with wire feed rate (m/min) following corresponding 1,2,3,4 in table 1 and the table 2.
Adopt the butt joint welding method of this corrosion resistant plate, energy throat thickness 8mm to 14mm, the online butt joint welding of the corrosion resistant plate of width 1500mm to 2100mm or coil of strip, solder yield reaches 97%～100%.And guarantee that it is to produce smoothly more than 20 tons the time that the online welding of weld seam, weldquality can guarantee at unit tension force.
Description of drawings
Fig. 1 is butt joint welding method embodiment one of this corrosion resistant plate and the schematic diagram of embodiment two.
Fig. 2 is and the corresponding left view of Fig. 1.
Among the above-mentioned figure
1-corrosion resistant plate 2-bonding machine 3-platform 4-pressing plate 5-stub bar
6-upper surface 7-first welding gun 8-gap 9-material tail 10-pressing plate
The 11-corrosion resistant plate 12-second welding gun 13-the 3rd welding gun 14-the 4th welding gun
The specific embodiment
Describe the specific embodiment of the butt joint welding method of this corrosion resistant plate in detail below in conjunction with embodiment and accompanying drawing thereof, but the specific embodiment of the butt joint welding method of this corrosion resistant plate is not limited to following embodiment.
Embodiment one
What present embodiment welded is that thickness is that 9mm, width are the Ni stainless-steel sheet 1 and stainless-steel sheet 11 of 1500mm.
The butt joint welding method embodiment of this corrosion resistant plate is a following sequential steps:
One, the uneven circular arc position of convex-concave of the stub bar 5 of excision corrosion resistant plate 1, the uneven circular arc position of convex-concave of the material tail 9 of excision stainless-steel sheet 11 makes solder side smooth, sees Fig. 1 and Fig. 2;
Two, the stub bar 5 of stainless-steel sheet 1 and the material tail 9 of stainless-steel sheet 11 are placed on the platform 3 of bonding machine 2, open feeding roller the stub bar 5 of two stainless-steel sheets and the gap 8 of material tail 9 are adjusted into 2.2mm～2.4mm, gap 8 be positioned at welding gun under, and respectively stub bar 5 and material tail 9 are compressed with pressing plate 4 and pressing plate 10;
Used welding gun when three, selecting welding; Adopt first welding gun 7 and 12 welding of second welding gun, vacant the 3rd welding gun 13 and the 4th welding gun 14;
Four, regulate weldingvoltage, wire feed rate and speed of welding; Weldingvoltage is adjusted to 29v, and the wire feed rate of setting welding wire is 9.5m/min, and the translational speed of setting welding gun is 0.9m/min;
Five, start welding procedure, automatically welding.
Embodiment two
What present embodiment welded is that thickness is that 12mm, width are the Ni stainless-steel sheet 1 and stainless-steel sheet 11 of 1500mm.
The butt joint welding method embodiment of this corrosion resistant plate is a following sequential steps:
One, the uneven circular arc position of convex-concave of the stub bar 5 of excision corrosion resistant plate 1, the uneven circular arc position of convex-concave of the material tail 9 of excision stainless-steel sheet 11 makes solder side smooth, referring to Fig. 1 and Fig. 2;
Two, the stub bar 5 of stainless-steel sheet 1 and the material tail 9 of stainless-steel sheet 11 are placed on the platform 3 of bonding machine 2, open feeding roller the stub bar 5 of two stainless-steel sheets and the gap 8 of material tail 9 are adjusted into 2.8mm～3.0mm, and respectively stub bar 5 and material tail 9 are compressed with pressing plate 4 and pressing plate 10;
Used welding gun when three, selecting welding; Adopt first welding gun 7, second welding gun 12, the 3rd welding gun 13 and 14 welding of the 4th welding gun
Four, regulate weldingvoltage, wire feed rate and speed of welding; The weldingvoltage of first welding gun 7 and second welding gun 12 is adjusted to 29v, the wire feed rate of setting welding wire is 8.0m/min, the weldingvoltage of the 3rd welding gun 13 and the 4th welding gun 14 is adjusted to 30v, and the wire feed rate of setting welding wire is 10m/min, and the translational speed of four welding guns is 0.6m/min;
Five, start welding procedure, automatically welding.
Embodiment three
What present embodiment welded is that thickness is that 10mm, width are the two volume Ni stainless-steel rolls of 1500mm.
The butt joint welding method embodiment of this corrosion resistant plate is a following sequential steps:
One, excise the wherein uneven circular arc position of convex-concave of the stub bar of a volume stainless-steel roll, the uneven circular arc position of convex-concave of excising the material tail of another stainless-steel roll makes solder side smooth;
Two, the material tail of the stub bar of stainless steel coil of strip and another stainless-steel roll is placed on the platform 3 of bonding machine 2, open feeding roller the gap of the material tail of the stub bar of stainless-steel roll and another stainless-steel roll is adjusted into 2.2mm～2.6mm, and respectively stub bar and material tail are compressed with pressing plate 4 and pressing plate 10, the gap be positioned at welding gun under;
Used welding gun when three, selecting welding; Adopt first welding gun 7 and 12 welding of second welding gun, vacant the 3rd welding gun 13 and the 4th welding gun 14;
Four, regulate weldingvoltage, wire feed rate and speed of welding; Weldingvoltage is adjusted to 30v, and the wire feed rate of setting welding wire is 9.0m/min, and the translational speed of setting welding gun is 0.9m/min;
Five, start welding procedure, automatically welding.
Embodiment four
What present embodiment welded is that thickness is that 14mm, width are the two volume Ni stainless-steel rolls of 1500mm.
The butt joint welding method embodiment of this corrosion resistant plate is a following sequential steps:
One, excise the wherein uneven circular arc position of convex-concave of the stub bar of a volume stainless-steel roll, the uneven circular arc position of convex-concave of excising the material tail of another stainless-steel roll makes solder side smooth;
Two, the material tail of the stub bar of stainless steel coil of strip and another stainless-steel roll is placed on the welding bench 3 of bonding machine 2, open feeding roller the gap of the material tail of the stub bar of stainless-steel roll and another stainless-steel roll is adjusted into 3.0～3.2mm, and respectively stub bar and material tail are compressed with pressing plate 4 and pressing plate 10, the gap be positioned at welding gun under;
Used welding gun when three, selecting welding; Adopt first welding gun 7, second welding gun 12, the 3rd welding gun 13 and 14 welding of the 4th welding gun;
Four, regulate weldingvoltage, wire feed rate and speed of welding; The weldingvoltage of first welding gun 7 and second welding gun 12 is adjusted to 29v, the wire feed rate of setting welding wire is 9.5m/min, the weldingvoltage of the 3rd welding gun 13 and the 4th welding gun 14 is adjusted to 31v, and the wire feed rate of setting welding wire is 10m/min, and the translational speed of four welding guns is 0.6m/min;
Five, start welding procedure, automatically welding.
The bonding machine that above-mentioned four embodiment adopt is the KONTINUMAT2000 type argon arc band steel bonding machine that German OXYTECHNIK company produces.
Claims (2)
1. the butt joint welding method of a corrosion resistant plate, it is the method that adopts the KONTINUMAT2000 type argon arc band steel bonding machine welding steel that German OXYTECHNIK company produces, it comprises following sequential steps:
The uneven circular arc position of convex-concave of the stub bar of I, the soldered corrosion resistant plate of excision or stainless steel coil of strip makes solder side smooth, and solder side is vertical with the plate face; Excise the uneven circular arc position of convex-concave of the material tail of another soldered piece corrosion resistant plate or stainless steel coil of strip, make solder side smooth, solder side is vertical with the plate face;
II, be placed on the stub bar of a soldered corrosion resistant plate or the stub bar of stainless steel coil of strip on the platform of bonding machine with pinch roll, be placed on the material tail of another soldered piece corrosion resistant plate or the material tail of stainless steel coil of strip on the platform of bonding machine with pinch roll, regulate stub bar and the gap of expecting between the tail, the gap be positioned at welding gun under;
III, used welding gun when selecting welding;
IV, adjusting weldingvoltage, wire feed rate and speed of welding;
V, startup welding procedure, welding automatically;
It is characterized in that: when welding,, adjust gap, the weldingvoltage of different weld seams, the speed of sending welding wire and speed of welding according to the thickness of stainless-steel sheet or coil of strip;
If the thickness of stainless-steel sheet or coil of strip is B, as 8mm≤thickness＜12mm, with first welding gun and the welding of second welding gun, the voltage of these two welding guns is 28V～30V; When the thickness of stainless-steel sheet 〉=12mm, with four welding guns welding, the voltage of first welding gun and second welding gun is 29V～30V, and the voltage of the 3rd welding gun and the 4th welding gun is 28V～32V; During welding, the relation between the speed of welding of gap, the voltage of welding gun, the wire feed rate of sending welding wire and welding gun between two welded steels or the coil of strip and the thickness of steel plate or coil of strip is set according to the requirement of following table
Voltage (V) and wire feed rate (m/min) following corresponding 1,2,3,4 in the last table
Represent first welding gun, second welding gun, the 3rd welding gun and the 4th welding gun respectively.
2. the butt joint welding method of corrosion resistant plate according to claim 1 is characterized in that: the relation between the thickness of gap, the voltage of welding gun, the wire feed rate of sending welding wire and speed of welding and steel plate or coil of strip between two welded steels or the coil of strip is set according to the requirement of following table
Voltage (V) is represented first welding gun, second welding gun, the 3rd welding gun and the 4th welding gun respectively with wire feed rate (m/min) following corresponding 1,2,3,4 in the last table.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100744896A CN101633071B (en) | 2009-05-26 | 2009-05-26 | Butting welding method of stainless steel plate |
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| CN2009100744896A CN101633071B (en) | 2009-05-26 | 2009-05-26 | Butting welding method of stainless steel plate |
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| CN101633071A CN101633071A (en) | 2010-01-27 |
| CN101633071B true CN101633071B (en) | 2011-06-29 |
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| CN104439616A (en) * | 2014-11-27 | 2015-03-25 | 芜湖中集瑞江汽车有限公司 | 0Cr18Ni9 stainless steel plate welding process |
| CN104625318B (en) * | 2014-12-30 | 2017-04-19 | 中船黄埔文冲船舶有限公司 | Device and method for controlling suspension welding seam root gap and welding deformation in self-supporting mode |
| CN109352143B (en) * | 2018-10-29 | 2021-05-11 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Stainless steel hot-rolled coil welding method |
| CN111975201B (en) * | 2020-06-28 | 2022-08-16 | 武汉钢铁有限公司 | Steel strip threading welding method |
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