CN113927210B - Steel belt forming process - Google Patents
Steel belt forming process Download PDFInfo
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- CN113927210B CN113927210B CN202111204716.XA CN202111204716A CN113927210B CN 113927210 B CN113927210 B CN 113927210B CN 202111204716 A CN202111204716 A CN 202111204716A CN 113927210 B CN113927210 B CN 113927210B
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- forming machine
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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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers
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Abstract
The invention discloses a steel strip forming process, which adopts a U-shaped mode to sequentially form a steel strip through a 15-pass forming device, wherein the edge of the steel strip is bent through 1 pass in the first step so as to enable the edge to tilt; step two, bending the middle part of the steel belt after 2 passes; thirdly, bending the middle part of the steel belt further after 3 passes; fourthly, bending the edge of the steel belt after 4 passes, and deforming the steel belt in the U-shaped direction; fifthly, bending the edge of the steel belt after 5 passes, and deforming the steel belt in the C-shaped direction; sixthly, adding powder into the C-shaped groove of the steel belt, and enabling the shape of the steel belt to be kept in the C shape after 6 times; seventhly, bending the edge and the middle of the steel belt further by 7-10 times; and eighth step, carrying out 11-15 times of molding on the steel belt by a double-radius aperture molding machine. The steel strip forming process has clear principle, simple process steps, stable forming and good quality.
Description
Technical Field
The invention relates to the technical field of steel strip forming in the production process of welding wires, in particular to a steel strip forming process.
Background
The flux-cored wire is a welding material made by wrapping the powder with a steel belt, and in the manufacturing process, the raw material steel belt is required to be cold-formed into a circle, and the powder is added into the steel belt in the middle process. In consideration of the requirements of stable molding and powder adding, the molding process of the flux-cored wire needs different design molding processes to manufacture rollers with corresponding hole patterns, so that the steel strip is subjected to rolling molding. Based on the above, the invention provides a steel belt forming process which is used for improving the forming stability, guaranteeing the quality and meeting the powder adding requirement.
Disclosure of Invention
The invention aims to provide a steel strip forming process which solves the problems of stability and quality of steel strip forming.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention relates to a steel strip forming process, which adopts a U-shaped mode to sequentially form a steel strip through 15-pass forming devices, and respectively adjusts roller die hole patterns by utilizing adjusting devices of all forming devices according to the requirement of the deformation of the steel strip, so that the steel strip is fully deformed to achieve an ideal state of being welded, and the concrete process is as follows:
firstly, bending the edge of the steel strip for 1 pass to enable the edge to tilt, wherein the bending angle is 42-48 degrees, and the bending radius is R2-2.5 mm;
step two, after 2 passes, bending the edge, namely the middle part of the steel strip simultaneously, wherein the decomposition bending angle is 100-105 degrees, the edge radius R is 2.6-2.75 mm, and the bending radius of the middle part is R5.5mm-R6mm;
thirdly, after 3 passes, the middle part of the steel belt is further bent, the bending angle is 140-150 degrees, and the bending radius is R3.6mm-R4.6mm;
step four, bending the edges for 4 times, wherein the bending radius is 2.5mm-2.75mm, the bending angle is 165-167 degrees, and simultaneously bending the middle part of the steel strip formed for the third time, wherein the bending radius is unchanged, but the original whole section of arc is changed into two sections, the first section is 166-168 degrees, and the center of the arc deviates from the symmetry center by 0.3-0.4 mm; the second section is 122-125 degrees, and the center of the circular arc deviates from the symmetry center by 0.5-0.6 mm; the steel belt starts to deform towards the U-shaped direction;
fifthly, after 5 passes, continuing to bend the middle part of the steel strip rolled in the fourth pass, rolling the radius of the first section to be close to the radius of the edge part, bending the second section (namely the middle part of the current steel strip) of the upper pass to be radius R4.2mm-R4.5mm, and deforming the steel strip in the C-shaped direction;
sixthly, adding powder into the C-shaped groove of the steel belt, and enabling the shape of the steel belt to be kept in the C shape after 6 times;
seventh, bending the edge of the steel strip for 7-10 times, wherein the bending angle is gradually increased and is 128-132 degrees; the bending radius is gradually reduced, the range is R2.7mm-R2.9mm, the middle part of the steel belt is further bent, the bending angle is gradually increased, and the range is 126-129 degrees; the bending radius gradually decreases in the range of 2.9mm-3.1mm.
And eighth step, carrying out 11-15 passes on the steel belt, and gradually approaching an o-type through a double-radius aperture forming machine to achieve the ideal welding state.
Further, in the sixth step, powder adding devices are adopted for adding powder in the C-shaped groove of the steel belt, and compression rollers which are used for stabilizing the steel belt and are not deformed are symmetrically arranged on the left side and the right side of the powder adding devices.
Further, the forming device sequentially adopts a first vertical roll forming machine, a second vertical roll forming machine, a first flat roll forming machine, a third vertical roll forming machine, a second flat roll forming machine, a third flat roll forming machine, a fourth vertical roll forming machine, a fourth flat roll forming machine, a fifth vertical roll forming machine, a fifth flat roll forming machine, a sixth vertical roll forming machine, a sixth flat roll forming machine, a seventh vertical roll forming machine, a seventh flat roll forming machine and a eighth vertical roll forming machine from 1 pass to 5 passes.
Further, the first vertical roll forming machine, the second vertical roll forming machine, the third vertical roll forming machine, the fourth vertical roll forming machine, the fifth vertical roll forming machine, the sixth vertical roll forming machine, the seventh vertical roll forming machine and the eighth vertical roll forming machine are all connected with driving devices, the lower rollers are fixed, and the upper rollers have the functions of up-down adjustment and front-back adjustment.
Further, the first flat roller forming machine, the second flat roller forming machine, the third flat roller forming machine, the fourth flat roller forming machine, the fifth flat roller forming machine, the sixth flat roller forming machine and the seventh flat roller forming machine are all unpowered, and the flat rollers have the functions of moving forwards and backwards and independently adjusting up and down.
Compared with the prior art, the invention has the beneficial technical effects that:
when the steel belt forming process is operated, before the steel belt is added with powder according to actual conditions, the steel belt is subjected to three vertical roller forming machines and two flat roller forming machines to form C-shaped welding wires, and after the powder is added, the O-shaped welding wires are formed after the steel belt is subjected to five vertical roller forming machines and five flat roller forming machines again, so that the ideal welding state is achieved. In a word, the steel strip forming process of the invention has clear principle, simple process steps, stable forming and good quality.
Drawings
The invention is further described with reference to the following description of the drawings.
FIG. 1 is a schematic diagram of a steel strip forming process according to the present invention;
FIG. 2 is a flow chart of the steel strip forming process of the present invention;
FIG. 3 is a schematic flow chart diagram of one embodiment;
reference numerals illustrate: 1. a vertical roll forming machine I; 2. a second vertical roll forming machine; 3. a flat roll forming machine I; 4. a vertical roll forming machine III; 5. a flat roller forming machine II; 6. a flat roll forming machine III; 7. a vertical roll forming machine IV; 8. a flat roll forming machine IV; 9. fifthly, a vertical roll forming machine; 10. a flat roll forming machine V; 11. a vertical roll forming machine six; 12. a flat roll forming machine six; 13. seventhly, a vertical roll forming machine; 14. seven flat roll forming machines; 15. eight vertical roll forming machines; 16. a powder adding device; 17. and (3) a press roller.
Description of the embodiments
As shown in fig. 1-3, a steel strip forming process adopts a 'U' -shaped mode, the steel strip is sequentially formed by 15-pass forming devices, and according to the requirement of the deformation of the steel strip, the roller die hole type adjustment is respectively carried out by using the adjusting devices of the forming devices, so that the steel strip is fully deformed to achieve the ideal state of being weldable, and the concrete process is as follows:
firstly, bending the edge of the steel strip for 1 pass to enable the edge to tilt, wherein the bending angle is 42-48 degrees, and the bending radius is R2-2.5 mm;
step two, after 2 passes, bending the edge, namely the middle part of the steel strip simultaneously, wherein the decomposition bending angle is 100-105 degrees, the edge radius R2.6mm-R2.75mm, and the bending radius of the middle part is R5.5mm-R6mm;
thirdly, after 3 passes, the middle part of the steel belt is further bent, the bending angle is 140-150 degrees, and the bending radius is R3.6mm-R4.6mm;
step four, bending the edges for 4 times, wherein the bending radius is 2.5mm-2.75mm, the bending angle is 165-167 degrees, and simultaneously bending the middle part of the steel strip formed for the third time, wherein the bending radius is unchanged, but the original whole section of arc is changed into two sections, the first section is 166-168 degrees, and the center of the arc deviates from the symmetry center by 0.3-0.4 mm; the second section is 122-125 degrees, and the center of the circular arc deviates from the symmetry center by 0.5-0.6 mm; the steel belt starts to deform towards the U-shaped direction;
fifthly, after 5 passes, continuing to bend the middle part of the steel strip rolled in the fourth pass, rolling the radius of the first section to be close to the radius of the edge part, bending the second section (namely the middle part of the current steel strip) of the upper pass to be radius R4.2mm-R4.5mm, and deforming the steel strip in the C-shaped direction;
sixthly, adding powder into the C-shaped groove of the steel belt, and enabling the shape of the steel belt to be kept in the C shape after 6 times;
seventh, bending the edge of the steel strip for 7-10 times, wherein the bending angle is gradually increased and is 128-132 degrees; the bending radius is gradually reduced, the range is R2.7mm-R2.9mm, the middle part of the steel belt is further bent, the bending angle is gradually increased, and the range is 126-129 degrees; the bending radius gradually decreases in the range of 2.9mm-3.1mm. And eighth step, carrying out 11-15 passes on the steel belt, and gradually approaching an o-type through a double-radius aperture forming machine to achieve the ideal welding state.
In the sixth step, the powder adding device 16 is adopted for adding powder in the C-shaped groove of the steel belt, and compression rollers 17 which are used for stabilizing the steel belt and do not deform are symmetrically arranged on the left side and the right side of the powder adding device 16, so that powder adding is facilitated.
The forming device sequentially adopts a first vertical roll forming machine 1, a second vertical roll forming machine 2, a first flat roll forming machine 3, a third vertical roll forming machine 4, a second flat roll forming machine 5, a third flat roll forming machine 6, a fourth vertical roll forming machine 7, a fourth flat roll forming machine 8, a fifth vertical roll forming machine 9, a fifth flat roll forming machine 10, a sixth vertical roll forming machine 11, a sixth flat roll forming machine 12, a seventh vertical roll forming machine 13, a seventh flat roll forming machine 14 and a eighth vertical roll forming machine 15 from 1 pass to 5 passes.
The vertical roll forming machine I1, the vertical roll forming machine II 2, the vertical roll forming machine III 4, the vertical roll forming machine IV 7, the vertical roll forming machine V9, the vertical roll forming machine V11, the vertical roll forming machine V13 and the vertical roll forming machine V15 are all connected with driving devices, the lower roll is fixed, and the upper roll has the functions of up-down adjustment and front-back adjustment.
The first flat roller forming machine 3, the second flat roller forming machine 5, the third flat roller forming machine 6, the fourth flat roller forming machine 8, the fifth flat roller forming machine 10, the sixth flat roller forming machine 12 and the seventh flat roller forming machine 14 are all unpowered, and the flat rollers have the functions of moving forwards and backwards and independently adjusting up and down.
As shown in FIG. 3, the steel strip is formed to have a width of 14mm and a thickness of 1.0mm, and the method is carried out as follows:
firstly, bending the edge of a steel belt for 1 pass to enable the edge to tilt, wherein the bending angle is 45 degrees, and the bending radius is R2.5mm;
step two, after 2 passes, bending the edge, namely the middle part of the steel strip simultaneously, wherein the decomposition bending angle is 104 degrees, the edge radius R is 2.75mm, and the bending radius of the middle part is R6mm;
thirdly, after 3 passes, the middle part of the steel belt is further bent, the bending angle is 147 degrees, and the bending radius is R4.6mm;
step four, bending the edge for 4 times, wherein the bending radius is 2.75mm, the bending angle is 165 degrees, and simultaneously bending the middle part of the steel strip formed for the third time, wherein the bending radius is unchanged, but the original whole arc is changed into two sections, the center of the first section is 165 degrees, and the center of the arc deviates from the symmetry center by 0.3-0.4 mm; the second section is 122 degrees, and the center of the circular arc deviates from the symmetry center by 0.5mm-0.6mm; the steel belt starts to deform towards the U-shaped direction;
fifthly, after 5 passes, continuing to bend the middle part of the steel strip rolled in the fourth pass, rolling the radius of the first section to be close to the radius of the edge part, bending the second section (namely the middle part of the current steel strip) of the upper pass to be radius R4.3mm, and starting to deform the steel strip towards the C-shaped direction;
sixthly, adding powder into the C-shaped groove of the steel belt, and enabling the shape of the steel belt to be kept in the C shape after 6 times;
seventhly, bending the edge of the steel belt for 7-10 times, wherein the bending angle is gradually increased and the range is 130 degrees; the bending radius gradually decreases, the range is R2.75mm, the middle part of the steel belt is further bent, the bending angle gradually increases, and the range is 129 degrees; the bending radius gradually decreases, and the range is 2.9mm;
and eighth step, carrying out 11-15 passes on the steel belt, and gradually approaching an o shape and a diameter of 5.5mm by a double-radius aperture forming machine to achieve the ideal welding state.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (5)
1. A steel strip forming process is characterized in that a U-shaped mode is adopted, steel strips are sequentially formed through 15-pass forming devices, roller die hole pattern adjustment is respectively carried out by utilizing adjusting devices of all forming devices according to the requirement of the deformation of the steel strips, so that the steel strips are fully deformed, and the steel strip forming process comprises the following specific steps:
firstly, bending the edge of the steel strip for 1 pass to enable the edge to tilt, wherein the bending angle is 42-48 degrees, and the bending radius is R2-2.5 mm;
step two, bending the edge and the middle part of the steel strip simultaneously after 2 passes, wherein the decomposition bending angle is 100-105 degrees, the edge radius R is 2.6-2.75 mm, and the bending radius of the middle part is R5.5mm-R6mm;
thirdly, after 3 passes, the middle part of the steel belt is further bent, the bending angle is 140-150 degrees, and the bending radius is R3.6mm-R4.6mm;
step four, bending the edges for 4 times, wherein the bending radius is 2.5mm-2.75mm, the bending angle is 165-167 degrees, and simultaneously bending the middle part of the steel strip formed for the third time, wherein the bending radius is unchanged, but the original whole section of arc is changed into two sections, the first section is 166-168 degrees, and the center of the arc deviates from the symmetry center by 0.3-0.4 mm; the second section is 122-125 degrees, and the center of the circular arc deviates from the symmetry center by 0.5-0.6 mm; the steel belt starts to deform towards the U-shaped direction;
fifthly, after 5 passes, continuing to bend the middle part of the steel strip rolled in the fourth pass, rolling the radius of the first section to be close to the radius of the edge part, bending the second section of the upper pass to be radius R4.2mm-R4.5mm, and deforming the steel strip in the C-shaped direction;
sixthly, adding powder into the C-shaped groove of the steel belt, and enabling the shape of the steel belt to be kept in the C shape after 6 times;
seventh, bending the edge of the steel strip for 7-10 times, wherein the bending angle is gradually increased and is 128-132 degrees; the bending radius is gradually reduced, the range is R2.7mm-R2.9mm, the middle part of the steel belt is further bent, the bending angle is gradually increased, and the range is 126-129 degrees; the bending radius is gradually reduced, and the range is 2.9mm-3.1mm;
and eighth step, carrying out 11-15 passes on the steel belt, and gradually approaching an o-type through a double-radius aperture forming machine to achieve the ideal welding state.
2. The steel strip forming process according to claim 1, wherein: in the sixth step, powder adding devices (16) are adopted for adding powder in the C-shaped groove of the steel belt, and compression rollers (17) which are used for stabilizing the steel belt and are not deformed are symmetrically arranged on the left side and the right side of the powder adding devices (16).
3. The steel strip forming process according to claim 1, wherein: the forming device sequentially adopts a first vertical roll forming machine (1), a second vertical roll forming machine (2), a first flat roll forming machine (3), a third vertical roll forming machine (4), a second flat roll forming machine (5), a third flat roll forming machine (6), a fourth vertical roll forming machine (7), a fourth flat roll forming machine (8), a fifth vertical roll forming machine (9), a fifth flat roll forming machine (10), a sixth vertical roll forming machine (11), a sixth flat roll forming machine (12), a seventh vertical roll forming machine (13), a seventh flat roll forming machine (14) and a eighth vertical roll forming machine (15) from 1 pass to 5 passes.
4. A steel strip forming process according to claim 3, wherein: the vertical roll forming machine I (1), the vertical roll forming machine II (2), the vertical roll forming machine III (4), the vertical roll forming machine IV (7), the vertical roll forming machine V (9), the vertical roll forming machine V (11), the vertical roll forming machine V (13) and the vertical roll forming machine V (15) are all connected with driving devices, the lower roller is fixed, and the upper roller has the functions of up-down adjustment and front-back adjustment.
5. A steel strip forming process according to claim 3, wherein: the flat roller forming machine I (3), the flat roller forming machine II (5), the flat roller forming machine III (6), the flat roller forming machine IV (8), the flat roller forming machine V (10), the flat roller forming machine V (12) and the flat roller forming machine V (14) are unpowered, and the flat roller has the functions of moving forwards and backwards and independently adjusting up and down.
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| CN202111204716.XA CN113927210B (en) | 2021-10-15 | 2021-10-15 | Steel belt forming process |
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| CN202111204716.XA CN113927210B (en) | 2021-10-15 | 2021-10-15 | Steel belt forming process |
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| CN113927210B true CN113927210B (en) | 2023-06-20 |
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| CN114749482B (en) * | 2022-04-12 | 2024-05-17 | 南京图信新材料科技有限公司 | Profile steel forming machine for rail and rail production and manufacturing method |
| CN116505347B (en) * | 2022-09-30 | 2024-08-20 | 苏州欧曼德通讯科技有限公司 | Connector contact sleeve processing technology |
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| JPH08197285A (en) * | 1995-01-30 | 1996-08-06 | Showa Alum Corp | Method for molding annular brazing filler metal |
| CN101722389B (en) * | 2008-10-30 | 2013-01-02 | 贵州航天南海机电有限公司 | Passive flux-cored wire forming machine |
| CN102139426B (en) * | 2010-11-24 | 2013-03-20 | 天津三英焊业股份有限公司 | Flux-cored wire forming unit and production method for flux-cored wires |
| CN102310302A (en) * | 2011-09-08 | 2012-01-11 | 中国船舶重工集团公司第七二五研究所 | Manufacturing method of seamless flux-cored wire |
| CN104226749B (en) * | 2014-08-18 | 2016-01-06 | 山东泰丰钢业有限公司 | A kind of forming U shaped articles technique for the manufacture of HFW welded tube |
| CN112588896B (en) * | 2020-12-18 | 2022-11-18 | 武汉钢铁江北集团冷弯型钢有限公司 | Forming method of asymmetric pentagonal thin-wall cold-formed steel pipe with sharp corners |
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Address after: 072750 No. 5 Tanyang Road, Taoyuan District, Zhuozhou City, Baoding City, Hebei Province Patentee after: Hebei Zhonghui Liwei Energy Saving Technology Co.,Ltd. Address before: 072750 No. 12, Kaifa Road, taojiatun village, Dongchengfang Town, Zhuozhou City, Baoding City, Hebei Province Patentee before: Hebei Zhonghui Liwei Energy Saving Technology Co.,Ltd. |