CN104981040A - Preparation method of titanium electrode containing metal mandrel difficult to melt - Google Patents
Preparation method of titanium electrode containing metal mandrel difficult to melt Download PDFInfo
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- CN104981040A CN104981040A CN201410136286.6A CN201410136286A CN104981040A CN 104981040 A CN104981040 A CN 104981040A CN 201410136286 A CN201410136286 A CN 201410136286A CN 104981040 A CN104981040 A CN 104981040A
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Abstract
The present invention relates to a preparation method of a titanium electrode containing a metal mandrel difficult to melt, and provides a titanium electrode preparation method which enables the vacuum self-consuming arc melting production cost, the production processes and the energy consumption to be reduced and the yield to be improved. The electrode is composed of the electrode blocks and the metal mandrel difficult to melt, and the metals difficult to melt are combined and welded into a square rod or a round rod of which the length is 2.1-2.7 m. The electrode blocks are formed by pressing the titanium sponges and other metals needing the middle and low melting points, are in layered arrangement and have a certain of grooves on the surface, and the lengths of the electrode blocks are 300-350 mm, and the widths are 200-400 mm. After the two electrode blocks are aligned and welded, a hole cavity for accommodating the metal mandrel difficult to melt is formed, the metal mandrel difficult to melt and the electrode blocks are spliced and welded into the electrode, and the metal mandrel difficult to melt and the grooves of the electrode blocks are combined compactly after splicing and welding. The preparation method of the present invention is suitable for not carrying out the additional intermediate alloy manufacturing and containing the metals difficult to melt directly to prepare a vacuum self-consuming arc melting electrode.
Description
Technical field
The present invention relates to a kind of Ti electrode preparation method comprising refractory metal core rod.
Background technology
Titanium material has high strength, the advantage such as corrosion resistance and biocompatibility that density is little, excellent, in many fields extensive use of national economy and social life.Current titanium material vacuum melting production process route is stablized, process is ripe, in refractory metal melting, mainly contain electron-beam cold bed furnace melting and vacuum consumable arc-melting, electron-beam cold bed furnace melting high-purity refractory metal rate of finished products is high, uniform composition, but it is large to there is equipment investment, energy consumption is large, cost is high, complicated operation, the shortcomings such as ingot casting weight is limited, vacuum consumable arc-melting contains refractory metal elements alloy, this method of smelting is simple to operate, uniform composition, but it is low also to there is rate of finished products, cost is high, and intermediate alloy need be made in advance, increase production process, production cost, the shortcomings such as spillage of material.
A kind of Ti electrode preparation method comprising refractory metal core rod of the present invention, on the basis of titanium material electrode for vacuum consumable arc-melting routine preparation, electrode is formed by the electrode block with certain groove of direct pressing and the refractory metal core rod welding of applicable electrode block groove shapes, by selecting suitable vacuum consumable arc-melting technique, can melt out reach proportioning calculation requirement, the segregation-free high-quality ingot casting of uniform composition.
Summary of the invention
The invention provides and a kind ofly do not carry out extra intermediate alloy and make and directly comprise the preparation that refractory metal carries out electrode for vacuum consumable arc-melting.On the basis that titanium alloy vacuum consumable electric arc melting is prepared by electrode routine, electrode is formed by the electrode block with certain groove of direct pressing and the refractory metal core rod welding of applicable electrode block groove shapes, by selecting suitable vacuum consumable arc-melting technique, can melt out reach proportioning calculation requirement, the segregation-free high-quality ingot casting of uniform composition, production cost, production process can be reduced, reduce energy consumption, improve rate of finished products.
Feature of the present invention: electrode is made up of electrode block and refractory metal core rod, because electrode finally will load in water jacketed copper crucible, also limits by the length of melting water jacketed copper crucible and internal diameter.Refractory metal is the metal of W, Mo, Nb, Ta equitemperature more than 2000 DEG C, and refractory metal is made into square rod or the pole of length 2.1 ~ 2.7m, becomes plug that is follow-up and electrode block welding.Electrode block needed for titanium sponge and other in, low-melting-point metal suppresses and forms, electrode block mold for pressing has circular arc or other shape projections, surface can be extruded there is certain groove, length 300 ~ 350mm, width 200 ~ 400mm, after the involutory welding of two electrode blocks, leave the vestibule holding refractory metal core rod, after refractory metal core rod and a few joint electrode block splice, become the electrode that can carry out melting.Every root electrode refractory metal core rod used must be complete one, if by several length not etc. refractory metal core rod form, then must carry out assembly welding and form whole.Electrode block is metal storied placement needed for titanium sponge and other, is suppressed forming by hydraulic press, electrode block groove and refractory metal core rod size design suitable, to make after welding refractory metal core rod with electrode block groove in conjunction with compact.
Accompanying drawing explanation
Accompanying drawing 1 is electrode cross-section figure.
Accompanying drawing 2 is electrode block and refractory metal core rod constitutional diagram.
Embodiment
Embodiment 1: adopt 1 grade of titanium sponge, aluminium shot and molybdenum pole to be raw material, proportioning is carried out by nominal composition Ti-8Al-15Mo, electrode block is pressed into after batch mixing, again electrode block argon arc welding method is welded into melting electrode, carries out being smelted into Φ 440mm ingot casting for three times in vacuum consumable arc-melting stove.Use quick forging machine that ingot casting is carried out cogging forging at 1150 DEG C, the pole base of Φ 110mm is become after repeatedly upsetting pull, then below 980 DEG C, temperature carries out the pole base that finish forge becomes Φ 60mm, finally by machine add strip off the skin, polish repair wound after be rolled into Φ 8mm wire rod, grinding or reconditioning scale removal again, cold drawn through roller die wire drawing is Φ 2mm silk material.
Embodiment 2: adopt 1 grade of titanium sponge, technical grade sponge zirconium and niobium pole to be raw material, proportioning is carried out by nominal composition Ti-13Nb-13Zr, electrode block is pressed into after batch mixing, again electrode block argon arc welding method is welded into melting electrode, in vacuum consumable arc-melting stove, carries out three times be smelted into ingot casting.Use quick forging machine that ingot casting is carried out cogging forging at 1050 DEG C, after repeatedly upsetting pull, become the square slab of δ 50mm, below 950 DEG C, be then rolled the slab becoming δ 5mm, finally by sandblasting, the sheet material repairing cold rolling desired thickness after wound, pickling.
Claims (1)
1. one kind comprises the Ti electrode preparation method of refractory metal core rod, it is characterized in that: electrode is made up of electrode block and refractory metal core rod, refractory metal assembly welding becomes square rod or the pole of length 2.1 ~ 2.7m, electrode block needed for titanium sponge and other in, low-melting-point metal storied placement suppresses and forms, surface has certain groove, length 300 ~ 350mm, width 200 ~ 400mm; After the involutory welding of two electrode blocks, leave and hold the vestibule of refractory metal core rod, refractory metal core rod and electrode block splice weld after become electrode, after welding, refractory metal core rod and electrode block groove are in conjunction with compact; Be applicable to not carry out extra intermediate alloy make and directly comprise the preparation that refractory metal carries out electrode for vacuum consumable arc-melting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410136286.6A CN104981040A (en) | 2014-04-07 | 2014-04-07 | Preparation method of titanium electrode containing metal mandrel difficult to melt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410136286.6A CN104981040A (en) | 2014-04-07 | 2014-04-07 | Preparation method of titanium electrode containing metal mandrel difficult to melt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104981040A true CN104981040A (en) | 2015-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410136286.6A Pending CN104981040A (en) | 2014-04-07 | 2014-04-07 | Preparation method of titanium electrode containing metal mandrel difficult to melt |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107746970A (en) * | 2017-09-26 | 2018-03-02 | 国核宝钛锆业股份公司 | A kind of zirconium and zircaloy electrode preparation method |
| CN111519049A (en) * | 2020-03-26 | 2020-08-11 | 宁夏中色金航钛业有限公司 | Low-cost niobium-titanium alloy electrode preparation method and niobium-titanium alloy electrode |
| CN112375940A (en) * | 2020-10-28 | 2021-02-19 | 西部新锆核材料科技有限公司 | Zirconium-tantalum binary intermediate alloy and preparation method and application of ingot thereof |
-
2014
- 2014-04-07 CN CN201410136286.6A patent/CN104981040A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107746970A (en) * | 2017-09-26 | 2018-03-02 | 国核宝钛锆业股份公司 | A kind of zirconium and zircaloy electrode preparation method |
| CN111519049A (en) * | 2020-03-26 | 2020-08-11 | 宁夏中色金航钛业有限公司 | Low-cost niobium-titanium alloy electrode preparation method and niobium-titanium alloy electrode |
| CN112375940A (en) * | 2020-10-28 | 2021-02-19 | 西部新锆核材料科技有限公司 | Zirconium-tantalum binary intermediate alloy and preparation method and application of ingot thereof |
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Application publication date: 20151014 |