CN103817530B - Consumable electrode vacuum furnace crystallizer welded type cylindrical shell preparation technology and welding accessory - Google Patents
Consumable electrode vacuum furnace crystallizer welded type cylindrical shell preparation technology and welding accessory Download PDFInfo
- Publication number
- CN103817530B CN103817530B CN201310673101.0A CN201310673101A CN103817530B CN 103817530 B CN103817530 B CN 103817530B CN 201310673101 A CN201310673101 A CN 201310673101A CN 103817530 B CN103817530 B CN 103817530B
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- cylindrical shell
- vacuum furnace
- consumable electrode
- welding
- crystallizer
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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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- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/04—Refining by applying a vacuum
Abstract
The present invention relates to consumable electrode vacuum furnace technical field, be specifically related to a kind of consumable electrode vacuum furnace crystallizer welded type cylindrical shell preparation technology and welding accessory, solve complex process, high, the expensive problem of cost of manufacture that existing cylindrical shell adopts spinning or forging forming.In the present invention crystallizer cylindrical shell welding accessory auxiliary under adopt welding fabrication, overcome the technology prejudice that prior art middle cylinder body only can adopt spinning or forging forming, the cylindrical shell indices adopting the method to prepare all reaches the requirement of consumable electrode vacuum furnace smelting process, the basis that ensure that mold structure intensity and precision alleviates manufacture difficulty effectively, reduce the production cost of crystallizer, improve the market competitiveness of equipment.
Description
Technical field
The present invention relates to consumable electrode vacuum furnace technical field, be specifically related to a kind of consumable electrode vacuum furnace crystallizer welded type cylindrical shell preparation technology and welding accessory.
Background technology
At present, consumable electrode vacuum furnace (VAR) is mainly used in the production of titanium and its alloys, by vacuum system, electrode drive mechanical system, crystallizer (copper crucible) and cooling recirculation system, dc source, automatically and the part such as manual control system, stabilising arc stirring system, detection and automatic production record form.
This stove is provided with a crystallizer (copper crucible), and crystallizer loads in water-cooling jacket, and connects with the positive pole of melting power supply.The negative pole of power supply is that " pull bar " (dummy electrode) is connected with piston, and this pull bar is entered in stove by the vacuum seal of sliding.Treat that the steel (consutrode) of melting are clamped on the support of control piston, and after burner hearth vacuumizes, decline consutrode with trigger electric arc at the slag charge of crystalliser feet.When electrode melts due to input power, just by hydraulic control system decline piston, so that holding electrode is constant with the distance between the molten bath formed therefrom.When melting continues to carry out, in crystallizer, just little by little define a new ingot.
Adopt T2 red copper cylindrical shell in consumable electrode vacuum furnace crystallizer, in prior art, this cylindrical shell adopts spinning or forging forming, and then shaping with flange welding, and overall performance is good, structural strength is high, but its technique is comparatively complicated, and cost of manufacture is high, expensive.The particular/special requirement that consumable electrode vacuum furnace crystallizer uses due to it, structure is complicated compared with the crystallizer of other types, there is higher mechanical strength, reliably technology acuracy and interchangeability, therefore more reasonably preparation technology is the key maintaining its permanent service life, reduces crystallizer manufacturing cost simultaneously, improves furnace life, reduces the key factor that operating cost is also satisfied modern Melting of Special Steels.
Summary of the invention
The invention provides a kind of consumable electrode vacuum furnace crystallizer welded type cylindrical shell preparation technology and welding accessory, crystallizer cylindrical shell adopts welding fabrication, the basis ensureing mold structure intensity and precision alleviates manufacture difficulty effectively, reduces the production cost of crystallizer.
Technical scheme provided by the invention is: a kind of consumable electrode vacuum furnace crystallizer welded type cylindrical shell manufacture craft, comprising:
Simulation makes the test piece for welding identical with barrel soldering cond, and this test plate (panel) does tension test under second-order weld condition, then reduces sheet metal thickness needed for situation determination cylindrical shell according to weld strength;
Blanking, plane limit and coiling process are once carried out to selected sheet material;
Sheet material longitudinal seam through rolling being healed up substantially, being warmed to 600-700 DEG C and under maintaining temperature constant state, becoming cylindrical shell with semi-automatic welding under the argon arc welding wire argon shield of S201 red copper and vibrational state;
Reconditioning, full circle and weld seam ray detection operation are carried out to the cylindrical shell after welding;
Carry out annealing in process to cylindrical shell entirety, be warmed to 300 DEG C, be incubated 2 hours, slow cooling is to room temperature.
As preferred a kind of mode, described sheet material is T2 or TP2 copper plate, can meet smelting demand.
As preferred a kind of mode, during welding, weld seam bottom interior surface posts T2 red copper batten in advance, and red copper batten bottom is provided with carbon-point to prevent the adhesion of metal.
A kind of consumable electrode vacuum furnace crystallizer welded type cylindrical shell manufacture craft welding accessory, comprise main body rack, cylindrical shell weld seam to be welded is upwards placed in main body rack, main body rack is divided into base, vertical section and tilting section, all be symmetrical arranged, the tip inside of tilting section is provided with pressure-adjustable plate, and pressure-adjustable plate is connected to outside cylindrical shell to make longitudinal seam heal up; Be furnished with resistance heated blanket and heat-preservation cotton successively outside cylindrical shell, leave opening in commissure; Main body rack side is also provided with fixed mount, and fixed mount top is provided with motion guide rail, and automatic swing welding tractor linear uniform motion on motion guide rail completes the welding under cylindrical shell argon shield; Be provided with vibrating grid inside main body rack vertical section, vibrating grid is provided with vibrator, is provided with damping spring bottom vibrating grid.
As a kind of preferred embodiment, also comprise adjuster, be connected in described cylindrical shell up and down, its top is provided with carbon-point.
As a kind of preferred embodiment, described heat-preservation cotton is alumina silicate fibre heat-preservation cotton.
In the present invention crystallizer cylindrical shell welding accessory auxiliary under adopt welding fabrication, overcome the technology prejudice that prior art middle cylinder body only can adopt spinning or forging forming, the cylindrical shell indices adopting the method to prepare all reaches the requirement of consumable electrode vacuum furnace smelting process, the basis that ensure that mold structure intensity and precision alleviates manufacture difficulty effectively, reduce the production cost of crystallizer, improve the market competitiveness of equipment.
Accompanying drawing explanation
Fig. 1 is the front view welding accessory in the present invention;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the top view of Fig. 1.
In figure: 1, vibrating grid, 2, pressure-adjustable plate, 3, resistance heated blanket, 4, heat-preservation cotton, 5, red copper batten, 6, carbon-point, 7, adjuster, 8, vibrator, 9, damping spring, 10, fixed mount, 11, welding tractor, 12, bolt, 13, motion guide rail, 14, cylindrical shell, 15, main body rack base, 16, main body rack vertical section, 17, main body rack tilting section.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described, and the present invention is not only confined to this.
The invention provides a kind of consumable electrode vacuum furnace crystallizer welded type cylindrical shell manufacture craft, key step is as follows:
Simulation makes the test piece for welding identical with barrel soldering cond, the cond of main consideration has material, welding temperature, heat treatment, heat-retaining condition etc., this test plate (panel) does tension test under second-order weld condition, then reduces sheet metal thickness needed for situation determination cylindrical shell according to weld strength; Preferred T2 or the TP2 copper plate of sheet material, can meet the particular demands of consumable electrode vacuum furnace Melting of Special Steels;
Once carry out blanking to selected sheet material, carry out plane limit operation to the cylindrical shell sheet material after blanking, namely carry out plane milling bevel for welding, finally carry out coiling process, cylindrical shell just tool is circular;
Sheet material longitudinal seam through rolling is healed up substantially, be warmed to 600-700 DEG C and under maintaining temperature constant state, cylindrical shell is become with semi-automatic welding under the argon arc welding wire argon shield of S201 red copper and vibrational state, the S201 red copper argon arc welding wire good mechanical property selected, crack resistance are good, can ensure the creep rupture strength of weld seam, under vibrational state, welding effectively can ensure weldquality; During welding, weld seam bottom interior surface posts T2 red copper batten in advance, and red copper batten bottom is provided with carbon-point to prevent the adhesion of metal;
Carry out reconditioning, the weldering meat that reconditioning is unnecessary to the cylindrical shell after welding, make weld seam reach consistent with mother metal thickness, machining removes the T2 red copper batten that weld seam inner surface pastes in advance; Full circle is carried out to cylindrical shell, makes cylinder roundness meet drawing requirement; Finally use ray detection cylindrical shell weld seam, weld seam all must reach the above technical requirement of secondary;
Carry out annealing in process to cylindrical shell entirety, be warmed to 300 DEG C, be incubated 2 hours, slow cooling is to room temperature, and barrel soldering makes complete.
Fig. 1, Fig. 2 and Fig. 3 are respectively the consumable electrode vacuum furnace crystallizer welded type cylindrical shell manufacture craft provided by the invention welding front view of accessory, side view and top view, this welding accessory comprises main body rack, cylindrical shell weld seam to be welded is upwards placed in main body rack, main body rack is divided into base, vertical section and tilting section, all be symmetrical arranged, the tip inside of tilting section is provided with pressure-adjustable plate, and pressure-adjustable plate is connected to outside cylindrical shell to make longitudinal seam heal up; Be furnished with resistance heated blanket and alumina silicate fibre heat-preservation cotton outside cylindrical shell successively, leave opening in commissure; Main body rack side is also provided with fixed mount, and fixed mount top is provided with motion guide rail, and automatic swing welding tractor linear uniform motion on motion guide rail completes the welding under cylindrical shell argon shield; Be provided with vibrating grid inside main body rack vertical section, vibrating grid is provided with vibrator, is provided with damping spring bottom vibrating grid.Welding accessory also comprises adjuster, and be connected in described cylindrical shell up and down, its top is provided with carbon-point.
Cylinder body bottom to be welded is placed on the base of main support, and top is compressed by pressure-adjustable plate, and pressure-adjustable plate is bolted the tilting section end at main support, and the elasticity by adjusting bolt regulates the healing up of cylindrical shell, tightness.The resistance heated blanket be arranged on outside cylindrical shell can make cylindrical shell obtain the preheat temperature of 600oC-700oC, and alumina silicate fibre heat-preservation cotton makes cylindrical shell obtain more balanced temperature.Vibrating grid is symmetrically installed with vibrator, and vibrating grid bottom design has damping spring, the welding pool of vibrating grid and cylindrical shell can be made to produce vibration and discharge in time impurity in molten bath and bubble, effectively improve weld seam fusion quality and reduce fusion cross section impurity.In addition, for ensureing the fusion quality of weld seam, post T2 red copper batten in advance at weld seam bottom interior surface, the carbon-point that adjuster top is arranged abuts with T2 red copper batten bottom, can prevent the adhesion of metal.Automatic swing welding tractor linear uniform motion on motion guide rail completes the welding under cylindrical shell argon shield and vibrational state, selects S201 red copper argon arc welding wire.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, anyly all belongs to the scope of protection of the invention to simple transformation of the present invention.
Claims (3)
1. a consumable electrode vacuum furnace crystallizer welded type cylindrical shell manufacture craft, is characterized in that: comprise the steps:
Simulation makes the test piece for welding identical with barrel soldering cond, and this test plate (panel) does tension test under second-order weld condition, then reduces sheet metal thickness needed for situation determination cylindrical shell according to weld strength;
Blanking, plane limit and coiling process are once carried out to selected sheet material;
Sheet material longitudinal seam through rolling being healed up substantially, being warmed to 600-700 DEG C and under maintaining temperature constant state, becoming cylindrical shell with semi-automatic welding under the argon arc welding wire argon shield of S201 red copper and vibrational state;
Reconditioning, full circle and weld seam ray detection operation are carried out to the cylindrical shell after welding;
Carry out annealing in process to cylindrical shell entirety, be warmed to 300 DEG C, be incubated 2 hours, slow cooling is to room temperature.
2. consumable electrode vacuum furnace crystallizer welded type cylindrical shell manufacture craft according to claim 1, is characterized in that: described sheet material is T2 or TP2 copper plate.
3. consumable electrode vacuum furnace crystallizer welded type cylindrical shell manufacture craft according to claim 1 and 2, it is characterized in that: during welding, weld seam bottom interior surface posts T2 red copper batten in advance, red copper batten bottom is provided with carbon-point to prevent the adhesion of metal.
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CN201310673101.0A CN103817530B (en) | 2013-12-12 | 2013-12-12 | Consumable electrode vacuum furnace crystallizer welded type cylindrical shell preparation technology and welding accessory |
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CN201310673101.0A CN103817530B (en) | 2013-12-12 | 2013-12-12 | Consumable electrode vacuum furnace crystallizer welded type cylindrical shell preparation technology and welding accessory |
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CN103817530A CN103817530A (en) | 2014-05-28 |
CN103817530B true CN103817530B (en) | 2016-04-27 |
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CN109158758A (en) * | 2018-10-11 | 2019-01-08 | 中国航空制造技术研究院 | A kind of adaptive regulation device in barrel components longitudinal joint laser welding gap and method |
CN109514050B (en) * | 2018-11-22 | 2021-05-18 | 湖北三江航天红阳机电有限公司 | Welding device and method for thin-wall spherical surface and filler neck |
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CN1850429A (en) * | 2006-05-18 | 2006-10-25 | 中信重型机械公司 | Technical method for manufacturing large-diameter grinding machine drum |
CN200967129Y (en) * | 2006-11-16 | 2007-10-31 | 华中科技大学 | Welding assembly jaw for welding cylinder |
CN101648331A (en) * | 2009-09-08 | 2010-02-17 | 江苏兆胜空调有限公司 | Welding technology of brass inner sleeve of hot galvanizing crust of explosion-proof fan |
CN201913351U (en) * | 2011-01-10 | 2011-08-03 | 司云兰 | Cantilever-type automatic-copying welding machine for irregular tank |
CN202571715U (en) * | 2012-06-11 | 2012-12-05 | 成都思尔特机器人科技有限公司 | Device for welding outer circumference of tubular cylinder barrel |
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US8267489B2 (en) * | 2010-02-10 | 2012-09-18 | Lincoln Global, Inc. | Industrial machine assembly |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1850429A (en) * | 2006-05-18 | 2006-10-25 | 中信重型机械公司 | Technical method for manufacturing large-diameter grinding machine drum |
CN200967129Y (en) * | 2006-11-16 | 2007-10-31 | 华中科技大学 | Welding assembly jaw for welding cylinder |
CN101648331A (en) * | 2009-09-08 | 2010-02-17 | 江苏兆胜空调有限公司 | Welding technology of brass inner sleeve of hot galvanizing crust of explosion-proof fan |
CN201913351U (en) * | 2011-01-10 | 2011-08-03 | 司云兰 | Cantilever-type automatic-copying welding machine for irregular tank |
CN202571715U (en) * | 2012-06-11 | 2012-12-05 | 成都思尔特机器人科技有限公司 | Device for welding outer circumference of tubular cylinder barrel |
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