CN111112964A - Arc powder concentrator blade surfacing method - Google Patents
Arc powder concentrator blade surfacing method Download PDFInfo
- Publication number
- CN111112964A CN111112964A CN202010018859.0A CN202010018859A CN111112964A CN 111112964 A CN111112964 A CN 111112964A CN 202010018859 A CN202010018859 A CN 202010018859A CN 111112964 A CN111112964 A CN 111112964A
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- welding
- arc
- steel plate
- welding gun
- base metal
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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
- B23P15/04—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from several pieces
Abstract
The invention discloses a surfacing method for blades of an arc powder concentrator, belonging to the field of material manufacturing; the technical problem to be solved is to provide a powder concentrator blade surfacing method which is simple and convenient to operate and can prolong the service life of the blades; the technical scheme for solving the technical problem is as follows: a surfacing method for blades of an arc powder concentrator comprises the steps of firstly bending a base metal steel plate, and then welding a wear-resistant layer on the surface of the bent base metal steel plate by using a welding gun; the invention can be widely applied to the field of material manufacturing.
Description
Technical Field
The invention discloses a surfacing method for arc powder concentrator blades, and belongs to the technical field of material manufacturing.
Background
The common blade of the vertical mill powder concentrator is a wear-resistant layer which is formed on a flat steel plate in a build-up welding mode, and then the blade is bent to form a certain angle. The wearing layer itself belongs to the high rigidity material, and plasticity and toughness are very poor, when bending together with the steel sheet, the wearing layer can produce great crackle, produces easily moreover and peels off, and the powder of high-speed motion can erode the blade during the use, and the parent metal of crackle department is directly erodeed, erodees for a long time and can wash out the parent metal completely, forms big cavity, leads to the blade to scrap, seriously influences blade life.
Disclosure of Invention
The invention overcomes the defects in the prior art, and provides the surfacing method for the powder concentrator blades, which is simple in method, convenient to operate and capable of prolonging the service life of the blades.
In order to solve the technical problems, the invention adopts the technical scheme that: a surfacing method for blades of an arc powder concentrator comprises the following steps:
1) preparing a base steel plate, and bending two sides of the base steel plate;
2) the surface of the bent base metal steel plate is divided into an arc starting straight line segment, an arc starting circular arc segment, a middle straight line segment, an arc closing circular arc segment and an arc closing straight line segment from one side bending segment to the other side bending segment;
3) rotating the base metal steel plate to enable the arcing straight line section to be in a horizontal position, welding the arcing straight line section by using a welding gun, moving the welding gun forwards in the welding process, keeping the base metal steel plate stationary, and stopping the welding gun after the welding is finished;
4) rotating the base metal steel plate and welding at the same time, keeping the rotating speed of the base metal steel plate consistent with the welding speed of a welding gun without moving the welding gun, ensuring the welding thickness of an arc starting straight line section and an arc starting circular arc section to be consistent, and stopping the action of the welding gun after the middle straight line section rotates to the horizontal position;
5) the welding gun moves forwards and starts to weld, the base metal steel plate is not moved, and when the welding gun moves to the arc-closing arc section, the welding gun stops moving;
6) rotating the base metal steel plate and welding at the same time, keeping the rotating speed of the base metal steel plate consistent with the welding speed of a welding gun without moving the welding gun, ensuring that the welding thickness of the arc-closing arc section is consistent with that of the middle straight-line section, and stopping the action of the welding gun after the arc-closing straight-line section rotates to the horizontal position;
7) the welding gun moves forwards while welding at the same time, and the arc-closing straight-line segment is welded;
8) repeating the steps in the opposite direction, and restoring the position of the welding gun to the arcing straight line section;
9) repeating the steps 3) to 8) to finish the welding of the blade;
10) and a cutting blade.
The thickness of the base metal steel plate is 5mm, and the thickness of the welding layer is 3 mm.
Compared with the prior art, the invention has the following beneficial effects: bending earlier during the blade preparation, then build-up welding wearing layer, wearing layer once welds the completion, and thickness is even, cuts the shaping at last, and no secondary deformation after welding, wearing layer structure is closely knit, does not have great crackle, and the phenomenon of peeling off does not have, very big improvement the life of blade.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the welding state of the arcing straight line segment of the present invention.
Fig. 2 is a schematic diagram of the welding state of the arcing arc segment of the invention.
Fig. 3 is a schematic view of the welding state of the middle straight-line segment according to the present invention.
Fig. 4 is a schematic view of the welding state of the arc-closing arc segment of the invention.
FIG. 5 is a schematic view of the welding state of the arc-closing straight line segment of the present invention.
Fig. 6 is a sectional view of the base steel sheet after bending.
Fig. 7 is a schematic view of a conventional blade after being welded and then bent.
Detailed Description
As shown in fig. 1 to 6, the arc powder concentrator blade surfacing method of the invention is characterized by comprising the following steps:
1) preparing a base steel plate, and bending two sides of the base steel plate;
2) the surface of the bent base metal steel plate is divided into an arc starting straight line segment, an arc starting circular arc segment, a middle straight line segment, an arc closing circular arc segment and an arc closing straight line segment from one side bending segment to the other side bending segment;
3) rotating the base metal steel plate to enable the arcing straight line section to be in a horizontal position, welding the arcing straight line section by using a welding gun, moving the welding gun forwards in the welding process, keeping the base metal steel plate stationary, and stopping the welding gun after the welding is finished;
4) rotating the base metal steel plate and welding at the same time, keeping the rotating speed of the base metal steel plate consistent with the welding speed of a welding gun without moving the welding gun, ensuring the welding thickness of an arc starting straight line section and an arc starting circular arc section to be consistent, and stopping the action of the welding gun after the middle straight line section rotates to the horizontal position;
5) the welding gun moves forwards and starts to weld, the base metal steel plate is not moved, and when the welding gun moves to the arc-closing arc section, the welding gun stops moving;
6) rotating the base metal steel plate and welding at the same time, keeping the rotating speed of the base metal steel plate consistent with the welding speed of a welding gun without moving the welding gun, ensuring that the welding thickness of the arc-closing arc section is consistent with that of the middle straight-line section, and stopping the action of the welding gun after the arc-closing straight-line section rotates to the horizontal position;
7) the welding gun moves forwards while welding at the same time, and the arc-closing straight-line segment is welded;
8) repeating the steps in the opposite direction, and restoring the position of the welding gun to the arcing straight line section;
9) repeating the steps 3) to 8) to finish the welding of the blade;
10) and a cutting blade.
The thickness of the base steel plate is 5mm, and the thickness of the welding layer is 3 mm.
The base metal is bent firstly, then the wear-resistant layer is built up, the wear-resistant layer is welded once and is uniform in thickness, finally the wear-resistant layer is cut and formed, secondary deformation is avoided after welding, the wear-resistant layer is compact in structure, free of cracks and peeling, the service life of the blade can be greatly prolonged, and the use cost is reduced.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (2)
1. A surfacing method for blades of an arc powder concentrator is characterized by comprising the following steps:
1) preparing a base steel plate, and bending two sides of the base steel plate;
2) the surface of the bent base metal steel plate is divided into an arc starting straight line segment, an arc starting circular arc segment, a middle straight line segment, an arc closing circular arc segment and an arc closing straight line segment from one side bending segment to the other side bending segment;
3) rotating the base metal steel plate to enable the arcing straight line section to be in a horizontal position, welding the arcing straight line section by using a welding gun, moving the welding gun forwards in the welding process, keeping the base metal steel plate stationary, and stopping the welding gun after the welding is finished;
4) rotating the base metal steel plate and welding at the same time, keeping the rotating speed of the base metal steel plate consistent with the welding speed of a welding gun without moving the welding gun, ensuring the welding thickness of an arc starting straight line section and an arc starting circular arc section to be consistent, and stopping the action of the welding gun after the middle straight line section rotates to the horizontal position;
5) the welding gun moves forwards and starts to weld, the base metal steel plate is not moved, and when the welding gun moves to the arc-closing arc section, the welding gun stops moving;
6) rotating the base metal steel plate and welding at the same time, keeping the rotating speed of the base metal steel plate consistent with the welding speed of a welding gun without moving the welding gun, ensuring that the welding thickness of the arc-closing arc section is consistent with that of the middle straight-line section, and stopping the action of the welding gun after the arc-closing straight-line section rotates to the horizontal position;
7) the welding gun moves forwards while welding at the same time, and the arc-closing straight-line segment is welded;
8) repeating the steps in the opposite direction, and restoring the position of the welding gun to the arcing straight line section;
9) repeating the steps 3) to 8) to finish the welding of the blade;
10) and a cutting blade.
2. An arc-shaped blade overlaying method according to claim 1, wherein: the thickness of the base metal steel plate is 5mm, and the thickness of the welding layer is 3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010018859.0A CN111112964A (en) | 2020-01-08 | 2020-01-08 | Arc powder concentrator blade surfacing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010018859.0A CN111112964A (en) | 2020-01-08 | 2020-01-08 | Arc powder concentrator blade surfacing method |
Publications (1)
| Publication Number | Publication Date |
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| CN111112964A true CN111112964A (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202010018859.0A Pending CN111112964A (en) | 2020-01-08 | 2020-01-08 | Arc powder concentrator blade surfacing method |
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| CN (1) | CN111112964A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248267A (en) * | 2011-07-25 | 2011-11-23 | 中国石化集团第四建设公司 | Thick-wall chromium-molybdenum steel pipeline submerged arc welding technology |
| CN102962549A (en) * | 2012-11-26 | 2013-03-13 | 清华大学 | Robot control method for welding along any curve trace in vertical plane |
| CN103659200A (en) * | 2012-08-30 | 2014-03-26 | 株式会社世和机械 | Blade manufacturing method and impeller including blade |
| CN103917321A (en) * | 2011-11-08 | 2014-07-09 | 株式会社富士工 | Curved surface weld overlay method and lance manufacturing method employing same |
| CN106475661A (en) * | 2016-11-08 | 2017-03-08 | 甘肃酒钢集团西部重工股份有限公司 | A kind of bead-welding technology of wear-resisting millstone sheet |
| CN108356386A (en) * | 2018-01-05 | 2018-08-03 | 张家港市鑫州焊割机械有限公司 | Elbow internal wall build-up welding apparatus |
| CN109237053A (en) * | 2018-09-11 | 2019-01-18 | 上海华通阀门有限公司 | A kind of butterfly valve seal method |
| CN109676390A (en) * | 2018-12-26 | 2019-04-26 | 郑州爱丁宝机电科技有限公司 | Metal mixed process equipment |
| WO2019181556A1 (en) * | 2018-03-23 | 2019-09-26 | 株式会社神戸製鋼所 | Method for producing shaped article and shaped article |
-
2020
- 2020-01-08 CN CN202010018859.0A patent/CN111112964A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248267A (en) * | 2011-07-25 | 2011-11-23 | 中国石化集团第四建设公司 | Thick-wall chromium-molybdenum steel pipeline submerged arc welding technology |
| CN103917321A (en) * | 2011-11-08 | 2014-07-09 | 株式会社富士工 | Curved surface weld overlay method and lance manufacturing method employing same |
| CN103659200A (en) * | 2012-08-30 | 2014-03-26 | 株式会社世和机械 | Blade manufacturing method and impeller including blade |
| CN102962549A (en) * | 2012-11-26 | 2013-03-13 | 清华大学 | Robot control method for welding along any curve trace in vertical plane |
| CN106475661A (en) * | 2016-11-08 | 2017-03-08 | 甘肃酒钢集团西部重工股份有限公司 | A kind of bead-welding technology of wear-resisting millstone sheet |
| CN108356386A (en) * | 2018-01-05 | 2018-08-03 | 张家港市鑫州焊割机械有限公司 | Elbow internal wall build-up welding apparatus |
| WO2019181556A1 (en) * | 2018-03-23 | 2019-09-26 | 株式会社神戸製鋼所 | Method for producing shaped article and shaped article |
| CN109237053A (en) * | 2018-09-11 | 2019-01-18 | 上海华通阀门有限公司 | A kind of butterfly valve seal method |
| CN109676390A (en) * | 2018-12-26 | 2019-04-26 | 郑州爱丁宝机电科技有限公司 | Metal mixed process equipment |
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