CN103737253A - Method for machining steel welding gas cylinder body - Google Patents
Method for machining steel welding gas cylinder body Download PDFInfo
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- CN103737253A CN103737253A CN201310640967.1A CN201310640967A CN103737253A CN 103737253 A CN103737253 A CN 103737253A CN 201310640967 A CN201310640967 A CN 201310640967A CN 103737253 A CN103737253 A CN 103737253A
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- cylindrical shell
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
A method for machining a steel welding gas cylinder body comprises the following steps of (1) blanking, (2) cylinder body pre-bending, (3) derusting and edge rolling, (4) spot welding, (5) longitudinal joint welding, (6) roundness correction, (7) turning and (8) polishing. The method lowers labor intensity of workers, improves machining efficiency and product quality and lowers production cost.
Description
Technical field
The present invention relates to gas cylinder manufacture field, relate in particular to a kind of processing method of Welded steel cylinder cylindrical shell.
Background technology
Welded steel cylinder comprises cylindrical shell, upper cover, low head, and cylindrical shell, upper cover, low head are welded together to form Welded steel cylinder.Cylindrical shell processing method originally, technique is cumbersome, and workman's labour intensity is large, and working (machining) efficiency is low, and production cost is high.
Summary of the invention
The object of this invention is to provide a kind of workman's of reduction labour intensity, improve working (machining) efficiency and product quality, the processing method of the Welded steel cylinder cylindrical shell reducing production costs.
The present invention is achieved in that the processing method of Welded steel cylinder cylindrical shell, it is characterized in that: comprise the following steps:
1), blanking: press blank size line setting-out, steel plate rolling direction should be consistent with the hoop of cylindrical shell, draw simultaneously 100 × 100 draw put out, each one of arc plate; By line, cut material on cutter, after shearing, periphery is answered angle square, diagonal deviation≤2mm;
2), pre-bending cylindrical shell: fill die for fisrt forming on hydraulic press, guarantee that peripheral clearance is consistent, first by the pre-bending moulding of blank one end, then by blank other end pre-bending moulding;
3), derust, roll up circle: within the scope of pre-bending cylindrical shell both ends of the surface and inside and outside two identity distance end face 15mm, hand steered polishing machine polishing is derusted; To give being inserted on three roller furling plate round machine through the qualified cylindrical shell blank of polishing of curved mistake, open furling plate round machine, the moulding of volume circle, guarantees gap 0 ~ 1mm, unfitness of butt joint b≤0.35mm, angularity E≤2.35mm; Spot welding four point positioning, welding rod J427,3.2mm, welding current 130 ~ 150A, voltage 24 ~ 26V;
4), tack welding: on the cylindrical shell after volume circle is qualified, spot welding run-on tab, arc-extinguishing plate, along stitching spot welding successively, spotweld length is 8 ~ 10 mm, and spacing is 100 ~ 120mm, and groove gap is 0 ~ 1mm, welding rod J427,3.2mm, welding current 140 ~ 150A, voltage 25 ~ 26V;
2), longitudinal seam welding: the cylindrical shell being up to the standards is placed in to jig, pads flux pad, in case burn-through is selected welding wire H08A, 3, solder flux HJ431, welding wire is aimed to bevel for welding center, electrode extension is 15 ~ 25mm, outside, first weldering inner side, then weldering; During weldering inner side, welding current 250 ~ 280A, voltage 25 ~ 28V, speed 28-32m/h; During weldering outside, welding current 280 ~ 300A, voltage 28 ~ 30V, speed 28-32m/h;
6), school circle: excise run-on tab, arc-extinguishing plate with electric angle grinder, should polish smoothly in cut place, cylindrical shell clamping, on furling plate round machine, is opened to furling plate round machine, proofreaies and correct cylindrical shell, assurance angularity E≤2.35mm; Poor e≤4 of minimax diameter, same cross section, unfitness of butt joint b≤0.35mm, linearity franchise Δ L≤1.3mm, minimum wall thickness (MINI W.) 3mm after moulding, surface crater, scuffing, corrosion depth≤0.5mm;
7), turning: the cylindrical shell that clamping is proofreaied and correct on lathe, turning both ends of the surface and groove, bevel angle α=30 ° ± 1.5 °;
8), polishing: the good cylindrical shell of turning is lain on turning rolls, start hand steered polishing machine, guarantee rustless stain within the scope of the 20mm of bevelled edge medial and lateral, cylindrical shell two ends, metal luster.
The present invention has reduced workman's labour intensity, has improved working (machining) efficiency and product quality, has reduced production cost.
Accompanying drawing explanation
Fig. 1 is the product schematic diagram of pre-bending cylindrical shell operation in the present invention;
Fig. 2 is the product schematic diagram of middle cylinder body of the present invention;
In figure 1, longitudinal joint, 2, groove, 3, bevel angle α, 4, end face.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated:
1), blanking the processing method of Welded steel cylinder cylindrical shell, is characterized in that: comprise the following steps:: by blank size line setting-out, steel plate rolling direction should be consistent with the hoop of cylindrical shell, draw simultaneously 100 × 100 draw put out, each one of arc plate; By line, cut material on cutter, after shearing, periphery is answered angle square, diagonal deviation≤2mm;
2), pre-bending cylindrical shell: fill die for fisrt forming on hydraulic press, guarantee that peripheral clearance is consistent, first by the pre-bending moulding of blank one end, then by blank other end pre-bending moulding; 3), derust, roll up circle: within the scope of pre-bending cylindrical shell both ends of the surface and inside and outside two identity distance end face 15mm, hand steered polishing machine polishing is derusted; To give being inserted on three roller furling plate round machine through the qualified cylindrical shell blank of polishing of curved mistake, open furling plate round machine, the moulding of volume circle, guarantees gap 0 ~ 1mm, unfitness of butt joint b≤0.35mm, angularity E≤2.35mm; Spot welding four point positioning, welding rod J427,3.2mm, welding current 130 ~ 150A, voltage 24 ~ 26V; 4), tack welding: on the cylindrical shell after volume circle is qualified, spot welding run-on tab, arc-extinguishing plate, along stitching spot welding successively, spotweld length is 8 ~ 10 mm, and spacing is 100 ~ 120mm, and groove gap is 0 ~ 1mm, welding rod J427,3.2mm, welding current 140 ~ 150A, voltage 25 ~ 26V;
2), longitudinal joint 1 welds: the cylindrical shell being up to the standards is placed in to jig, pads flux pad, in case burn-through is selected welding wire H08A, 3, solder flux HJ431, welding wire is aimed to bevel for welding center, electrode extension is 15 ~ 25mm, outside, first weldering inner side, then weldering; During weldering inner side, welding current 250 ~ 280A, voltage 25 ~ 28V, speed 28-32m/h; During weldering outside, welding current 280 ~ 300A, voltage 28 ~ 30V, speed 28-32m/h; 6), school circle: excise run-on tab, arc-extinguishing plate with electric angle grinder, should polish smoothly in cut place, cylindrical shell clamping, on furling plate round machine, is opened to furling plate round machine, proofreaies and correct cylindrical shell, assurance angularity E≤2.35mm; Poor e≤4 of minimax diameter, same cross section, unfitness of butt joint b≤0.35mm, linearity franchise Δ L≤1.3mm, minimum wall thickness (MINI W.) 3mm after moulding, surface crater, scuffing, corrosion depth≤0.5mm; 7), turning: the cylindrical shell that clamping is proofreaied and correct on lathe, turning both ends of the surface 4 and groove 2, bevel angle α=30 ° ± 1.5 °, 8), polishing: the good cylindrical shell of turning is lain on turning rolls, start hand steered polishing machine, guarantee rustless stain within the scope of the 20mm of bevelled edge medial and lateral, cylindrical shell two ends, metal luster.
Claims (1)
1. the processing method of Welded steel cylinder cylindrical shell, is characterized in that: comprise the following steps:
1), blanking: press blank size line setting-out, steel plate rolling direction should be consistent with the hoop of cylindrical shell, draw simultaneously 100 × 100 draw put out, each one of arc plate; By line, cut material on cutter, after shearing, periphery is answered angle square, diagonal deviation≤2mm;
2), pre-bending cylindrical shell: fill die for fisrt forming on hydraulic press, guarantee that peripheral clearance is consistent, first by the pre-bending moulding of blank one end, then by blank other end pre-bending moulding;
3), derust, roll up circle: within the scope of pre-bending cylindrical shell both ends of the surface and inside and outside two identity distance end face 15mm, hand steered polishing machine polishing is derusted; To give being inserted on three roller furling plate round machine through the qualified cylindrical shell blank of polishing of curved mistake, open furling plate round machine, the moulding of volume circle, guarantees gap 0 ~ 1mm, unfitness of butt joint b≤0.35mm, angularity E≤2.35mm; Spot welding four point positioning, welding rod J427,3.2mm, welding current 130 ~ 150A, voltage 24 ~ 26V;
4), tack welding: on the cylindrical shell after volume circle is qualified, spot welding run-on tab, arc-extinguishing plate, along stitching spot welding successively, spotweld length is 8 ~ 10 mm, and spacing is 100 ~ 120mm, and groove gap is 0 ~ 1mm, welding rod J427,3.2mm, welding current 140 ~ 150A, voltage 25 ~ 26V;
5), longitudinal joint (1) welding: the cylindrical shell being up to the standards is placed in to jig, pads flux pad, in case burn-through, select welding wire H08A, 3, solder flux HJ431, welding wire is aimed to bevel for welding center, electrode extension is 15 ~ 25mm, outside, first weldering inner side, then weldering; During weldering inner side, welding current 250 ~ 280A, voltage 25 ~ 28V, speed 28-32m/h; During weldering outside, welding current 280 ~ 300A, voltage 28 ~ 30V, speed 28-32m/h;
6), school circle: excise run-on tab, arc-extinguishing plate with electric angle grinder, should polish smoothly in cut place, cylindrical shell clamping, on furling plate round machine, is opened to furling plate round machine, proofreaies and correct cylindrical shell, assurance angularity E≤2.35mm; Poor e≤4 of minimax diameter, same cross section, unfitness of butt joint b≤0.35mm, linearity franchise Δ L≤1.3mm, minimum wall thickness (MINI W.) 3mm after moulding, surface crater, scuffing, corrosion depth≤0.5mm;
7), turning: the cylindrical shell that clamping is proofreaied and correct on lathe, turning both ends of the surface (4) and groove (2), bevel angle α=30 ° ± 1.5 °,
8), polishing: the good cylindrical shell of turning is lain on turning rolls, start hand steered polishing machine, guarantee rustless stain within the scope of the 20mm of bevelled edge medial and lateral, cylindrical shell two ends, metal luster.
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| CN201310640967.1A CN103737253B (en) | 2013-12-04 | 2013-12-04 | The processing method of Welded steel cylinder cylinder |
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| CN201310640967.1A CN103737253B (en) | 2013-12-04 | 2013-12-04 | The processing method of Welded steel cylinder cylinder |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104108004A (en) * | 2014-04-25 | 2014-10-22 | 西安航空动力股份有限公司 | Manufacturing method of insulation jacket of gas turbine |
| CN105690033A (en) * | 2016-02-02 | 2016-06-22 | 贵州凯星液力传动机械有限公司 | Processing method for thin-wall barrels |
| CN106001851A (en) * | 2016-06-30 | 2016-10-12 | 广船国际有限公司 | Welding method for butting metal plates |
| CN107932005A (en) * | 2017-12-21 | 2018-04-20 | 特洛伊五金（苏州）有限公司 | A kind of manufacture craft of door handle |
| CN109129536A (en) * | 2018-10-30 | 2019-01-04 | 长沙博大机械零部件有限公司 | A kind of environment protection process technique for sleeve part stretch process |
| CN109500486A (en) * | 2018-12-22 | 2019-03-22 | 山西汾西重工有限责任公司 | The positioning and welding method of longitudinal abutment joint of aluminium alloy thick plate edge rolling shell |
| CN113070645A (en) * | 2021-04-09 | 2021-07-06 | 宁波江丰电子材料股份有限公司 | Wrapping sleeve without bevel structure, and processing method and application thereof |
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| CN101941139A (en) * | 2010-09-02 | 2011-01-12 | 中信重工机械股份有限公司 | Welding and assembling method for huge mining mill barrel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104108004A (en) * | 2014-04-25 | 2014-10-22 | 西安航空动力股份有限公司 | Manufacturing method of insulation jacket of gas turbine |
| CN105690033A (en) * | 2016-02-02 | 2016-06-22 | 贵州凯星液力传动机械有限公司 | Processing method for thin-wall barrels |
| CN105690033B (en) * | 2016-02-02 | 2017-12-22 | 贵州凯星液力传动机械有限公司 | A kind of processing method of thin-wall barrel |
| CN106001851A (en) * | 2016-06-30 | 2016-10-12 | 广船国际有限公司 | Welding method for butting metal plates |
| CN107932005A (en) * | 2017-12-21 | 2018-04-20 | 特洛伊五金（苏州）有限公司 | A kind of manufacture craft of door handle |
| CN109129536A (en) * | 2018-10-30 | 2019-01-04 | 长沙博大机械零部件有限公司 | A kind of environment protection process technique for sleeve part stretch process |
| CN109500486A (en) * | 2018-12-22 | 2019-03-22 | 山西汾西重工有限责任公司 | The positioning and welding method of longitudinal abutment joint of aluminium alloy thick plate edge rolling shell |
| CN109500486B (en) * | 2018-12-22 | 2023-01-03 | 山西汾西重工有限责任公司 | Method for positioning and welding longitudinal butt joint of aluminum alloy thick plate rolling shell |
| CN113070645A (en) * | 2021-04-09 | 2021-07-06 | 宁波江丰电子材料股份有限公司 | Wrapping sleeve without bevel structure, and processing method and application thereof |
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| CN103737253B (en) | 2016-08-17 |
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Effective date of registration: 20220725 Address after: 214500 south head of Lishi bridge, Xinqiao Town, Jingjiang City, Taizhou City, Jiangsu Province (multiple sites) Patentee after: Jiangsu Minsheng Heavy Industries Co.,Ltd. Address before: No. 99, Fuyang Road, Jingjiang Development Zone, Taizhou City, Jiangsu Province, 214500 Patentee before: JIANGSU MINSHENG SPECIAL EQUIPMENT GROUP Co.,Ltd. |