CN115365627A - Device and method for improving strength of sponge titanium hard bright block die-casting electrode - Google Patents
Device and method for improving strength of sponge titanium hard bright block die-casting electrode Download PDFInfo
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- CN115365627A CN115365627A CN202210936209.3A CN202210936209A CN115365627A CN 115365627 A CN115365627 A CN 115365627A CN 202210936209 A CN202210936209 A CN 202210936209A CN 115365627 A CN115365627 A CN 115365627A
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- electrode
- vacuum
- bright block
- hard bright
- welding
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000010936 titanium Substances 0.000 title claims abstract description 30
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 30
- 238000004512 die casting Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000003466 welding Methods 0.000 claims abstract description 76
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 239000007789 gas Substances 0.000 claims abstract description 30
- 229910052786 argon Inorganic materials 0.000 claims abstract description 22
- 238000005266 casting Methods 0.000 claims abstract description 13
- 238000005086 pumping Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000011261 inert gas Substances 0.000 abstract description 3
- 238000003723 Smelting Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Classifications
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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
- B23K11/00—Resistance welding; Severing by resistance heating
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
-
- 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
- C22B34/00—Obtaining refractory metals
- C22B34/10—Obtaining titanium, zirconium or hafnium
- C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
- C22B34/1295—Refining, melting, remelting, working up of titanium
-
- 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
- C22B9/16—Remelting metals
- C22B9/20—Arc remelting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a device and a method for improving the strength of a die-casting electrode of a hard bright block of titanium sponge, and belongs to the field of metal smelting. The device comprises a vacuum welding chamber, a vacuum system and an argon system, wherein a first sealing cover and a second sealing cover are respectively arranged at two ends of the vacuum welding chamber, a first resistance welding electrode and a gas inlet are arranged on the first sealing cover, a second resistance welding electrode and a gas outlet are arranged on the second sealing cover, and the gas inlet and the gas outlet are respectively connected with the argon system and the vacuum system. The hard bright block electrode is welded by using the resistance welding under the inert gas atmosphere, so that the strength of the hard bright block electrode can be improved, the strength requirement of casting a titanium ingot in a vacuum consumable furnace is met, the condition that the components in the titanium ingot are not uniform due to the fact that unmelted titanium particles fall into a casting crucible is avoided, and the accuracy of a test result is improved. The quality grade of the hard bright titanium particles is improved, and the benefit is improved.
Description
Technical Field
The invention belongs to the field of metal smelting, and particularly relates to a device and a method for improving the die-casting electrode strength of hard bright blocks generated after titanium sponge is crushed.
Background
At present, when the titanium sponge is detected, a crushed titanium block is required to be pressed into an electrode through a hydraulic press, then the electrode is cast into a titanium ingot through a vacuum consumable furnace, the titanium ingot is turned into a titanium wire through a lathe, and after the titanium wire is cut into titanium chips, the impurity elements are tested. The titanium lump core part has high density, so that a hard bright block (called as a hard bright block because of high density and bright surface) is easily formed after crushing, and other parts of the titanium lump can also form the hard bright block after being extruded for many times during crushing. In the current crushing process, about 5% of hard bright blocks are inevitably generated, and the pressed electrode has low strength and is easy to break during melting due to the high density and relatively smooth surface of the hard bright blocks, so that the melting and casting of titanium ingots are not facilitated. In the prior art, when the titanium ingot is cast in a vacuum consumable electrode furnace, part of titanium particles fall into a casting crucible without being melted, so that the internal components of the titanium ingot are not uniform, and the test result is influenced finally.
Therefore, a new device is needed to be developed, which can enhance the strength of the pressing electrode and meet the requirement of casting the titanium ingot in a vacuum consumable electrode furnace.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a device and a method for improving the strength of a die-casting electrode of a titanium sponge hard bright block, and aims to provide a device and a method for improving the strength of a die-casting electrode of a titanium sponge hard bright block, which comprise the following steps: the strength of the pressed electrode is improved, and the situation that unmelted titanium particles fall into a casting crucible to cause uneven components in the titanium ingot and influence a test result is avoided.
The technical scheme adopted by the invention is as follows:
the utility model provides an improve device of hard bright piece die-casting electrode intensity of titanium sponge, includes vacuum welding room, vacuum system and argon gas system, the both ends of vacuum welding room are provided with first sealed lid and the sealed lid of second respectively, be provided with first resistance welding electrode and gas inlet on the first sealed lid, be provided with second resistance welding electrode and gas outlet on the sealed lid of second, gas inlet and gas outlet are connected with argon gas system and vacuum system respectively.
Furthermore, the vacuum welding chamber is detachably connected with the first sealing cover and the second sealing cover through sealing buckles.
Further, the cross sectional shape of sealed buckle is L shape, the outside both ends of vacuum welding room are provided with articulated seat, the one end of sealed buckle is articulated with articulated seat, the fixed nut that is provided with in edge of first sealed lid and the sealed lid of second, the other end of sealed buckle is provided with the through-hole, be provided with the bolt in the through-hole, the bolt passes through-hole and nut threaded connection.
Further, the first resistance welding electrode comprises a hollow screw and an electrode nut, the lower portion of the hollow screw is of a multi-petal structure, and an insulating sealing ring is arranged between the electrode nut and the first sealing cover.
The invention also provides a method for improving the strength of the die-casting electrode of the hard titanium sponge bright block, which comprises the following steps:
step 1: pressing the crushed hard bright blocks into an electrode shape by a hydraulic press to obtain hard bright block electrodes;
and 2, step: placing the hard bright block electrode in a vacuum welding chamber, fixing two ends of the hard bright block electrode with a first resistance welding electrode and a second resistance welding electrode respectively, and then sealing the vacuum welding chamber;
and 3, step 3: pumping the vacuum degree of the vacuum welding chamber to 1Pa through a vacuum system, then filling argon into the vacuum welding chamber to normal pressure through an argon system, and then pumping the vacuum to 1Pa again;
and 4, step 4: after the above steps are repeated, starting a resistance welding power supply, and welding the hard bright block electrode through the resistance welding electrode;
and 5: and after the welding is finished, continuously introducing argon gas flow into the vacuum welding chamber, cooling the welded hard bright block electrode to normal temperature, taking out the welded hard bright block electrode, and then putting the hard bright block electrode into a vacuum consumable furnace for casting a titanium ingot.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the hard bright block electrode is welded by using the resistance welding under the inert gas atmosphere, so that the strength of the hard bright block electrode can be improved, the strength requirement of casting a titanium ingot in a vacuum consumable furnace is met, the condition that the components in the titanium ingot are not uniform due to the fact that unmelted titanium particles fall into a casting crucible is avoided, and the accuracy of a test result is improved.
2. According to the invention, through the manufacture of the hard bright block electrode, the analysis and detection capability of the hard bright block is improved, the quality grade of the hard bright block titanium particles is improved, and the benefit is improved.
3. The invention can detect the grade of the pure hard bright block by manufacturing the pure hard bright block electrode, and can enlarge the sale amount of the hard bright block.
4. The invention adopts the operation of vacuumizing and argon filling for many times, argon can be used as protective gas, and meanwhile, after welding is finished, heat on the electrode is taken away by continuous argon flow, so that the cooling rate can be accelerated.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is an enlarged sectional view of the first resistance welding electrode of the present invention.
The welding device comprises a vacuum welding chamber 1, a first sealing cover 2, a second sealing cover 3, a first resistance welding electrode 4, a hollow screw 401, an electrode nut 402, a second resistance welding electrode 5, a gas inlet 6, a gas outlet 7, a sealing buckle 8, a bolt 9, a hard bright block electrode 10, a hinged seat 11, a nut 12 and an insulating sealing ring 13.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
The present invention will be described in detail with reference to fig. 1 to 4.
An apparatus for improving the strength of a titanium sponge hard bright block die-casting electrode is shown in fig. 1 and fig. 2, and comprises a vacuum welding chamber 1, a vacuum system (not shown in the figure) and an argon system (not shown in the figure). The vacuum welding chamber 1 is cylindrical, and a first sealing cover 2 and a second sealing cover 3 are respectively arranged at two ends of the vacuum welding chamber. The first sealing cover 2 is provided with a first resistance welding electrode 4 and a gas inlet 6, the gas inlet 6 is communicated with the inside of the vacuum welding chamber 1, and the first resistance welding electrode 4 penetrates through the first sealing cover 2. The second sealing cover 3 is provided with a second resistance welding electrode 5 and a gas outlet 7, the second resistance welding electrode 5 penetrates through the second sealing cover 3, and the gas outlet 7 is communicated with the inside of the vacuum welding chamber 1. The gas inlet 6 is communicated with an argon system at one end outside the first sealing cover 2, and the gas outlet 7 is communicated with a vacuum system at one end outside the first sealing cover 2. In this embodiment, the vacuum system is an evacuable device or system commonly used in the art, and will not be described in detail herein. The argon gas system is a system and an apparatus for supplying argon gas, which are commonly used in the art, and will not be described in detail.
The first resistance welding electrode 4 and the second resistance welding electrode 5 have the same structure. The first resistance welding electrode 4 comprises a hollow screw 401 and a nut 402, the lower part of the hollow screw 401 is of a multi-lobe structure, and an insulating sealing ring 13 is arranged between the nut 402 and the first sealing cover 2. The insulating seal ring 13 can seal the vacuum welding chamber 1.
In this embodiment, the vacuum welding chamber 1 is detachably connected to the first sealing cover 2 and the second sealing cover 3 through the sealing fastener 8. The cross-sectional shape of sealed buckle 8 is L shape, the outside both ends of vacuum welding room 1 are provided with articulated seat 11, the one end of sealed buckle 8 is articulated with articulated seat 11, the fixed nut 12 that is provided with in edge of first sealed lid 2 and the sealed lid 3 of second, the other end of sealed buckle 8 is provided with the through-hole, be provided with bolt 9 in the through-hole, bolt 9 passes through-hole and nut 12 threaded connection. When needs are fixed, will seal buckle 8 and to the sealed upset of first sealed lid 2 or the sealed 3 one side of second, make through-hole and nut 12 align, then penetrate bolt 9 and screw up and can fix, reverse operation can be dismantled, easy operation and firm in connection, the installation and the dismantlement of the bright piece electrode 10 of the hardness of being convenient for.
The invention also discloses a method for improving the strength of the die-casting electrode of the hard titanium sponge bright block, which comprises the following steps:
step 1: pressing the crushed hard bright blocks into an electrode shape by a hydraulic press to obtain hard bright block electrodes 10;
step 2: the hard bright block electrode 10 is placed in the vacuum welding chamber 1 with both ends fixed to the first resistance welding electrode 4 and the second resistance welding electrode 5, respectively, and then the vacuum welding chamber 1 is sealed. In this embodiment, one end of the hard bright block electrode 10 is inserted into the hollow screw 401 with the multi-lobe structure, and then the electrode nut 402 is tightened, so that the hard bright block electrode 10 is clamped with the hollow screw 401 with the multi-lobe structure, and the hard bright block electrode 10 can be fixed.
And step 3: pumping the vacuum degree of the vacuum welding chamber 1 to be lower than 1Pa through a vacuum system, then filling argon into the vacuum welding chamber 1 to be normal pressure through an argon system, and then pumping the vacuum welding chamber 1 to be 1Pa again;
and 4, step 4: after repeating the above steps for 3 times, starting a resistance welding power supply, and welding the hard bright block electrode 10 through the resistance welding electrode;
and 5: and after the welding is finished, continuously introducing argon gas flow into the vacuum welding chamber 1, cooling the welded hard bright block electrode 10 to normal temperature, taking out the welded hard bright block electrode 10, and then putting the welded hard bright block electrode into a vacuum consumable furnace for casting a titanium ingot.
The hard bright block electrode is welded by the resistance welding under the inert gas atmosphere, so that the strength of the hard bright block electrode can be improved, the strength requirement of casting a titanium ingot in a vacuum consumable electrode furnace is met, the condition that the internal components of the titanium ingot are not uniform due to the fact that unmelted titanium particles fall into a casting crucible is avoided, and the accuracy of a test result is improved. The quality grade of the hard and bright titanium particles is improved, and the benefit is improved.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (5)
1. The utility model provides an improve device of hard bright piece die-casting electrode strength of titanium sponge which characterized in that: including vacuum welding room (1), vacuum system and argon gas system, the both ends of vacuum welding room (1) are provided with first sealed lid (2) and the sealed lid of second (3) respectively, be provided with first resistance welding electrode (4) and gas inlet (6) on first sealed lid (2), be provided with second resistance welding electrode (5) and gas outlet (7) on the sealed lid of second (3), gas inlet (6) and gas outlet (7) are connected with argon gas system and vacuum system respectively.
2. The device for improving the strength of the die-cast electrode of the titanium sponge hard bright block according to claim 1, wherein: the vacuum welding chamber (1) is detachably connected with the first sealing cover (2) and the second sealing cover (3) through a sealing buckle (8).
3. The device for improving the strength of the die-cast electrode of the titanium sponge hard bright block as claimed in claim 2, wherein: the cross sectional shape of sealed buckle (8) is L shape, the outside both ends of vacuum welding room (1) are provided with articulated seat (11), the one end of sealed buckle (8) is articulated with articulated seat (11), the fixed nut (12) that are provided with in edge of the sealed lid of first sealed lid (2) and second (3), the other end of sealed buckle (8) is provided with the through-hole, be provided with bolt (9) in the through-hole, bolt (9) pass through-hole and nut (12) threaded connection.
4. The device for improving the strength of the die-cast electrode of the titanium sponge hard bright block according to claim 1, wherein: the first resistance welding electrode (4) comprises a hollow screw (401) and an electrode nut (402), the lower portion of the hollow screw (401) is of a multi-petal structure, and an insulating sealing ring (13) is arranged between the electrode nut (402) and the first sealing cover (2).
5. The method for improving the strength of the die-cast electrode of the titanium sponge hard bright block by adopting the device of any one of claims 1 to 4 is characterized by comprising the following steps:
step 1: pressing the crushed hard bright blocks into an electrode shape by a hydraulic press to obtain hard bright block electrodes;
and 2, step: placing the hard bright block electrode in a vacuum welding chamber (1), fixing two ends of the hard bright block electrode with a first resistance welding electrode (4) and a second resistance welding electrode (5) respectively, and then sealing the vacuum welding chamber (1);
and step 3: pumping the vacuum degree of the vacuum welding chamber (1) to be lower than 1Pa through a vacuum system, then filling argon into the vacuum welding chamber (1) to be normal pressure through an argon system, and then pumping the vacuum to be 1Pa again;
and 4, step 4: after repeating the above steps for 3 times, starting a resistance welding power supply, and welding the hard bright block electrode through the resistance welding electrode;
and 5: and after the welding is finished, continuously introducing argon gas flow into the vacuum welding chamber (1), cooling the welded hard bright block electrode to normal temperature, taking out the welded hard bright block electrode, and then putting the hard bright block electrode into a vacuum consumable furnace for casting a titanium ingot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210936209.3A CN115365627A (en) | 2022-08-05 | 2022-08-05 | Device and method for improving strength of sponge titanium hard bright block die-casting electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210936209.3A CN115365627A (en) | 2022-08-05 | 2022-08-05 | Device and method for improving strength of sponge titanium hard bright block die-casting electrode |
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| CN115365627A true CN115365627A (en) | 2022-11-22 |
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| CN202210936209.3A Pending CN115365627A (en) | 2022-08-05 | 2022-08-05 | Device and method for improving strength of sponge titanium hard bright block die-casting electrode |
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|---|---|---|---|---|
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| JPH0938782A (en) * | 1995-07-31 | 1997-02-10 | Kawasaki Steel Corp | Resistance spot welding method of aluminum material |
| CN1593833A (en) * | 2004-07-15 | 2005-03-16 | 武汉理工大学 | Large pulse power supply heating welding method for Ti-6Al-4V titanium alloy |
| CN202124490U (en) * | 2011-07-21 | 2012-01-25 | 陕西天宏硅材料有限责任公司 | Graphite electrode for reduction furnace |
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| CN110125526A (en) * | 2019-04-26 | 2019-08-16 | 西安交通大学 | A kind of eyelet pointing titanium valve electric resistance welding method of molybdenum strainer laminated construction |
| CN209559484U (en) * | 2019-04-19 | 2019-10-29 | 中国航空工业集团公司沈阳飞机设计研究所 | The fixation device of lamp tube electrode in a kind of air temperature fatigue test |
-
2022
- 2022-08-05 CN CN202210936209.3A patent/CN115365627A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63220985A (en) * | 1987-03-06 | 1988-09-14 | Kyushu Sekisui Kogyo Kk | Electrode for spot welding |
| JPH0938782A (en) * | 1995-07-31 | 1997-02-10 | Kawasaki Steel Corp | Resistance spot welding method of aluminum material |
| CN1593833A (en) * | 2004-07-15 | 2005-03-16 | 武汉理工大学 | Large pulse power supply heating welding method for Ti-6Al-4V titanium alloy |
| CN202124490U (en) * | 2011-07-21 | 2012-01-25 | 陕西天宏硅材料有限责任公司 | Graphite electrode for reduction furnace |
| CN103433611A (en) * | 2013-08-27 | 2013-12-11 | 中国电子科技集团公司第四十四研究所 | Vacuum percussion welding packaging device for packaging semiconductor device |
| CN208041348U (en) * | 2018-01-11 | 2018-11-02 | 福建省速卖通电子商务有限公司 | A kind of antiseptic petroleum pipeline component |
| CN208089696U (en) * | 2018-03-21 | 2018-11-13 | 上海滤威过滤系统有限公司 | A kind of heavy device for hooping for filter |
| CN209559484U (en) * | 2019-04-19 | 2019-10-29 | 中国航空工业集团公司沈阳飞机设计研究所 | The fixation device of lamp tube electrode in a kind of air temperature fatigue test |
| CN110125526A (en) * | 2019-04-26 | 2019-08-16 | 西安交通大学 | A kind of eyelet pointing titanium valve electric resistance welding method of molybdenum strainer laminated construction |
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