CN111168331A - Process manufacturing method of ultra-long arc striking block for welding - Google Patents
Process manufacturing method of ultra-long arc striking block for welding Download PDFInfo
- Publication number
- CN111168331A CN111168331A CN202010047274.1A CN202010047274A CN111168331A CN 111168331 A CN111168331 A CN 111168331A CN 202010047274 A CN202010047274 A CN 202010047274A CN 111168331 A CN111168331 A CN 111168331A
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- Prior art keywords
- arc striking
- block
- forging
- arc
- striking block
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 238000003466 welding Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 13
- 238000005242 forging Methods 0.000 claims abstract description 56
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 238000005520 cutting process Methods 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000000227 grinding Methods 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 239000011265 semifinished product Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 239000000047 product Substances 0.000 claims description 7
- 239000002699 waste material Substances 0.000 claims description 7
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 3
- 229910001080 W alloy Inorganic materials 0.000 claims description 3
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 claims description 3
- 230000007547 defect Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000002679 ablation Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
A technology for manufacturing the ultralong arc-leading block used for welding includes such steps as heating, free forging, forging by air hammer, manual cutting, grinding and coating film, and features that the raw material is forged into strip-shaped blank, which is then arranged in special mould, and the strip-shaped blank is forged into strip-shaped blank by air hammer.
Description
Technical Field
The invention relates to the technical field of arc striking block processing, in particular to a process manufacturing method of an ultra-long arc striking block for welding.
Background
The middle groove is composed of a baffle/shovel board ledge, a middle board, a bottom board and the like, the assembly of the middle groove is that the baffle/shovel board ledge is divided into a left part and a right part to be assembled with the middle board, and arc striking blocks are adopted for guiding in order to avoid welding defects at the end heads during welding. At present, an arc striking block is formed by forging a plate material, the length of the arc striking block is generally less than or equal to 50mm, the arc striking block is only suitable for manually welding a middle groove, electroslag is easy to generate in the welding process, the electroslag is not easy to clear, materials are wasted, and the production efficiency is low. When the intelligent production line is adopted to weld the middle groove, the arc striking block is too short to meet the length requirement of 50mm to 80mm, so that the arc striking block is easy to generate welding defects at the end when welding, the generated electroslag is too much, and the service life of the arc striking block is greatly shortened.
Disclosure of Invention
In view of the above, it is necessary to provide a method for manufacturing an ultra-long arc starting block for welding.
A process manufacturing method of an ultra-long arc starting block for welding comprises the following steps:
(1) heating the raw materials to 1200 ℃ (± 10 ℃), preserving heat for more than 30min, and forging the raw materials into a long-strip-shaped forging stock through free forging;
(2) arranging the forging stock in a concave forging groove of a special buckle die, and forging the forging stock into an arc striking block forging stock by a 250kg air hammer;
(3) adopting manual gas cutting to cut the forging stock of the arc striking block into any length and making a drawing number mark;
(4) grinding the gas-cutting section of the arc striking block forging stock to ensure that the gas-cutting section is consistent with the surface smoothness of the arc striking block to form a semi-finished product of the arc striking block;
(5) and coating the semi-finished product of the arc striking block to coat an arc striking layer on the surface of the semi-finished product of the arc striking block to form a finished product of the arc striking block.
Preferably, the raw materials are low-carbon steel leftover materials or waste materials.
Preferably, the raw material is Q235 leftover materials or waste materials.
Preferably, the length of the forged blank of the arc striking block in the step (3) after gas cutting is 50mm-80 mm.
Preferably, the arc striking layer in the step (5) is made of copper-tungsten alloy.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can produce the ultra-long arc striking block and fill the market blank;
2. the manufacturing difficulty of the arc striking block is greatly reduced, the working efficiency is improved, and the raw material cost is saved;
3. the arc striking block has the advantages of remarkably improved drainage effect, better ablation resistance and more stable quality.
Drawings
Fig. 1 is a schematic structural diagram of an arc ignition block and a special buckle die.
Fig. 2 is a schematic top view of an arc block.
In the figure: an arc ignition block 10 and a special buckle mould 20.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Referring to fig. 1 to 2, the invention provides a process manufacturing method of an ultra-long arc starting block for welding, comprising the following steps:
(1) heating the raw materials to 1200 ℃ (± 10 ℃), preserving heat for more than 30min, forging the raw materials into a long-strip-shaped forging stock through free forging, so as to eliminate the defects of the forging stock such as shrinkage cavity, shrinkage porosity, air holes, cracks and the like, and enable the forging stock to have higher mechanical properties;
(2) the elongated forging stock is heated to 1200 ℃ (± 10 ℃) again, the temperature is kept for more than 30min, the elongated forging stock is placed in a special buckle die 20, the proper position is confirmed through a stop end positioning mode, a 250kg air hammer applies pressure to an upper die, the elongated forging stock generates plastic flow under the action of the pressure, and due to the fact that the concave forging groove of the special buckle die 20 limits the flow of the elongated forging stock, the concave forging groove is filled with the elongated forging stock, and a forging piece with the same shape as the concave forging groove, namely the arc striking block 10 forging stock, is obtained.
(3) Adopting manual gas cutting to cut the forging stock of the arc ignition block 10 into any length and making a drawing number mark;
(4) grinding the gas-cutting section of the forging stock of the arc ignition block 10 to ensure that the gas-cutting section is consistent with the surface smoothness of the arc ignition block 10 to form a semi-finished product of the arc ignition block 10;
(5) and (3) coating the semi-finished product of the arc striking block 10 to coat an arc striking layer on the surface of the semi-finished product of the arc striking block 10 so as to improve the ablation resistance of the arc striking block 10 and obtain a finished product of the arc striking block 10.
Specifically, leftover materials or waste materials are used as raw materials, the raw material cost of the arc ignition block 10 can be greatly reduced, the raw materials are placed into a natural gas furnace for heating and free forging, the heating process is executed according to JB/T6052-2005 Steel free forging heating general technical conditions, the raw materials are forged into a strip forging stock to eliminate the defects of forging stock shrinkage cavity, shrinkage porosity, air holes, cracks and the like existing in the raw materials, the strip forging stock is ensured to have higher mechanical property, the strip forging stock is arranged in a concave forging groove of a special buckle die 20, the special buckle die 20 is shaped according to actual production requirements, the strip forging stock is forged into the arc ignition block 10 forging stock through an air hammer, the arc ignition block 10 forging stock is cut into any length through manual cutting, the length can be adjusted according to the production requirements, for example, the length can be cut into 50mm-80mm, so as to be suitable for the production requirements of an intelligent production line, and then the forged blank of the arc ignition block 10 after the gas cutting is polished to ensure that the surface smoothness of the forged blank of the arc ignition block 10 is consistent, and then the semi-finished product of the arc ignition block 10 is coated with a film to improve the ablation resistance of the arc ignition block 10 to obtain the finished product of the arc ignition block 10.
According to the scheme, the finished product of the arc striking block 10 is produced, the finished product of the arc striking block 10 is forged into a strip forging blank by free forging from the beginning of production, the strip forging blank is arranged in a special buckle die 20, the strip forging blank is forged into a strip forging blank of the arc striking block 10 by an air hammer, and the strip forging blank is subjected to gas cutting, grinding and film coating to form a finished product of the arc striking block 10.
Furthermore, the raw materials are low-carbon steel leftover materials or waste materials, have good plasticity and toughness and good weldability, and are suitable for manufacturing the arc ignition block 10.
Furthermore, the raw material is Q235 leftover materials or waste materials, has good plasticity and toughness, is not easy to crack under the action of dynamic load, ensures that the arc striking block 10 is free of defects, and can conduct current efficiently.
Further, the length of the forged blank of the arc striking block 10 in the step (3) after gas cutting is 50mm-80mm, so that the method is extremely suitable for intelligent production lines, and solves the problem that the existing intelligent production lines are easy to generate welding defects due to the fact that the length of the arc striking block 10 is too short.
Furthermore, the arc striking layer in the step (5) is made of copper-tungsten alloy, so that the arc striking block has good ablation resistance and conductivity, and the service life of the arc striking block 10 and the welding quality can be improved.
The modules or units in the device of the embodiment of the invention can be combined, divided and deleted according to actual needs.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (5)
1. A process manufacturing method of an ultra-long arc starting block for welding is characterized by comprising the following steps:
(1) heating the raw materials to 1200 ℃ (± 10 ℃), preserving heat for more than 30min, and forging the raw materials into a long-strip-shaped forging stock through free forging;
(2) arranging the forging stock in a concave forging groove of a special buckle die, and forging the forging stock into an arc striking block forging stock by a 250kg air hammer;
(3) adopting manual gas cutting to cut the forging stock of the arc striking block into any length and making a drawing number mark;
(4) grinding the gas-cutting section of the arc striking block forging stock to ensure that the gas-cutting section is consistent with the surface smoothness of the arc striking block to form a semi-finished product of the arc striking block;
(5) and coating the semi-finished product of the arc striking block to coat an arc striking layer on the surface of the semi-finished product of the arc striking block to form a finished product of the arc striking block.
2. The process for manufacturing an ultra-long arc starting block for welding according to claim 1, wherein: the raw materials are low-carbon steel leftover materials or waste materials.
3. The process for manufacturing an ultra-long arc starting block for welding according to claim 2, wherein: the raw material is Q235 leftover material or waste material.
4. The process for manufacturing an ultra-long arc starting block for welding according to claim 1, wherein: the length of the forged blank of the arc striking block in the step (3) after gas cutting is 50-80 mm.
5. The process for manufacturing an ultra-long arc starting block for welding according to claim 1, wherein: and (5) the arc striking layer is made of copper-tungsten alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010047274.1A CN111168331A (en) | 2020-01-16 | 2020-01-16 | Process manufacturing method of ultra-long arc striking block for welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010047274.1A CN111168331A (en) | 2020-01-16 | 2020-01-16 | Process manufacturing method of ultra-long arc striking block for welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111168331A true CN111168331A (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010047274.1A Pending CN111168331A (en) | 2020-01-16 | 2020-01-16 | Process manufacturing method of ultra-long arc striking block for welding |
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| Country | Link |
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| CN (1) | CN111168331A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116240387A (en) * | 2022-12-23 | 2023-06-09 | 鞍钢股份有限公司 | An arc starting method for slab electroslag furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2156920A1 (en) * | 2008-08-20 | 2010-02-24 | Bobby Hu | Methods for manufacturing combination wrenches without generating carbon scale |
| CN105195985A (en) * | 2015-09-14 | 2015-12-30 | 江苏长诚档案设备有限公司 | Method for preparing ready-package rack and rack structure |
| CN205406345U (en) * | 2016-03-04 | 2016-07-27 | 江苏友腾机械有限公司 | Striking grounding contact |
| CN208728772U (en) * | 2018-08-23 | 2019-04-12 | 襄阳唐福机电科技有限公司 | A kind of forging backing plate cutter device |
| CN109807281A (en) * | 2018-12-21 | 2019-05-28 | 株洲中车天力锻业有限公司 | A kind of K3 brake beam end forging technology |
-
2020
- 2020-01-16 CN CN202010047274.1A patent/CN111168331A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2156920A1 (en) * | 2008-08-20 | 2010-02-24 | Bobby Hu | Methods for manufacturing combination wrenches without generating carbon scale |
| CN105195985A (en) * | 2015-09-14 | 2015-12-30 | 江苏长诚档案设备有限公司 | Method for preparing ready-package rack and rack structure |
| CN205406345U (en) * | 2016-03-04 | 2016-07-27 | 江苏友腾机械有限公司 | Striking grounding contact |
| CN208728772U (en) * | 2018-08-23 | 2019-04-12 | 襄阳唐福机电科技有限公司 | A kind of forging backing plate cutter device |
| CN109807281A (en) * | 2018-12-21 | 2019-05-28 | 株洲中车天力锻业有限公司 | A kind of K3 brake beam end forging technology |
Non-Patent Citations (3)
| Title |
|---|
| 吉林省送变电工程公司 庞骏骐: "《高压开关设备安装 油断路器部分》", 30 April 1979, 水利电力出版社 * |
| 昆明工学院电渣冶金研究室 常鹏北: "《有衬炉电渣冶金》", 30 September 1979, 云南人民出版社 * |
| 邱宏星: "《新编实用焊工速查手册》", 30 November 2007, 福建科学技术出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116240387A (en) * | 2022-12-23 | 2023-06-09 | 鞍钢股份有限公司 | An arc starting method for slab electroslag furnace |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200519 |
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| RJ01 | Rejection of invention patent application after publication |