CN105618723A - Inert atmosphere-based skull melting and casting process adopting consumable titanium alloy electrode - Google Patents
Inert atmosphere-based skull melting and casting process adopting consumable titanium alloy electrode Download PDFInfo
- Publication number
- CN105618723A CN105618723A CN201410758716.8A CN201410758716A CN105618723A CN 105618723 A CN105618723 A CN 105618723A CN 201410758716 A CN201410758716 A CN 201410758716A CN 105618723 A CN105618723 A CN 105618723A
- Authority
- CN
- China
- Prior art keywords
- titanium alloy
- alloy
- inert atmosphere
- plasma spraying
- powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Abstract
The objective of the invention is to provide an inert atmosphere-based skull melting and casting process adopting a consumable titanium alloy electrode. The process is characterized in that a titanium alloy is melted by virtue of a vacuum consumable titanium alloy electrode under a positive-pressure inert atmosphere, and poured into a casting mould subjected to plasma spraying of special refractory oxides; and a preparation method for the casting mould subjected to the plasma spraying of special refractory oxides comprises the following steps: mixing, in percentage by mass, 20% of yttrium oxide powder, 75% of zirconium oxide powder and 5% of calcium oxide powder, then carrying out ball-milling, carrying out high-temperature sintering by virtue of a high-temperature electric arc smelting method, then preparing 350-mesh powder through nodulizing, granulating and sieving, and spraying the prepared powder on the surface of the casting mould by virtue of plasma spraying equipment. The process is capable of effectively reducing the burning losses of volatile elements in the alloy, improving the consistency of alloy ingredients, reducing the contents of inclusions in the alloy, and improving the purity of an alloy liquid.
Description
Technical field
The invention belongs to titanium alloy smelting technical field, a kind of titanium alloy consumable electrode skull melting based on inert atmosphere is provided especially, and molten alloy is cast in the casting technique in the casting mold of plasma spraying special type oxide refractory coating.
Background technology
Titanium alloy because having that intensity height, corrosion resistance be good, thermostability high and be widely used, as made aircraft engine compressor part, the structural member etc. of rocket, guided missile and high-speed aircraft. The titanium alloy having been developed that in the world at present has hundreds of, but if titanium alloy exists the alloying elements such as Sn, Al, Mn, Cu, V, under vacuum conditions during melting, these elements are readily volatilized, cause and there is larger fluctuation before and after alloying component melting, affect alloy degree of purity. Meanwhile, titanium alloy liquid pours in casting mold, with mo(U)ld face generation minor response, can affect cast surface chemistry composition. Accordingly, it would be desirable to the aspects such as titanium alloy smelting process and raising mo(U)ld face refractoriness are carried out research of technique.
Summary of the invention
It is an object of the invention to provide a kind of titanium alloy consumable electrode skull melting casting technique based on inert atmosphere. This technique can effectively reduce the scaling loss of Volatile Elements in alloy, improves alloying component concordance, and reduces the content of field trash in alloy, improves the degree of purity of alloy liquid. Meanwhile, utilize plasma spraying technology in the extraordinary oxide refractory coating of mo(U)ld face plasma spraying one layer, weaken the extent of reaction of titanium alloy liquid and mo(U)ld face, reach the purpose that chemical component fluctuation is less.
The present invention specifically provides a kind of titanium alloy consumable electrode skull melting casting technique based on inert atmosphere, it is characterized in that: under malleation inert atmosphere, adopt vacuum consumable titanium alloy electrode smelting titanium alloy, and it is cast in the casting mold of special type fire oxide plasma spraying, the preparation method of the casting mold of described special type fire oxide plasma spraying is: take the yittrium oxide powder that mass percent is 20%, the zirconia powder of 75% and the calcium oxide powder of 5% carry out ball milling after mixing, and adopt high-temperature electric arc method of smelting to carry out high temperature sintering, it is then passed through nodularization pelletize screening and prepares 350 powder materials, plasma spraying equipment is utilized prepared powder to be sprayed at mo(U)ld face and get final product.
Titanium alloy consumable electrode skull melting casting technique based on inert atmosphere of the present invention, it is characterised in that detailed process is:
1) alloy raw material: titanium alloy electrode is fixed on vacuum consumable electrode skull crucible electrode stem;
2) shove charge: casting mold is loaded in vacuum consumable electrode skull crucible;
3) malleation is applied: first by body of heater evacuation, when the vacuum in stove is lower than 10Pa, filling with inert gas (being preferably argon) in stove, plus-pressure is between 700Pa��9000Pa;
4) alloy melting: electric current 18000A��20000A, voltage 40V, starting the arc melting;
5) cast of alloy: after melting alloy raw to required weight, overturns water jacketed copper crucible, is poured into by alloy liquid in the casting mold of plasma spraying special type fire oxide coating.
Titanium alloy consumable electrode skull melting casting technique based on inert atmosphere of the present invention, it is characterized in that: the yittrium oxide powder of prioritizing selection 350 order and the zirconia powder of 350 orders prepare powder, when utilizing plasma spraying equipment that prepared powder is sprayed at mo(U)ld face, preferred 0.1mm��the 0.3mm of coating layer thickness, casting mold can be sand mold, metal mold or graphite mould.
The method have the advantages that:
1. the present invention adopts consumable titanium alloy electrode smelting titanium alloy under inert gas atmosphere, can effectively reduce Volatile Elements volatilization loss in fusion process in alloy liquid, improves alloying component concordance and degree of purity.
2. present invention positive pressure smelting titanium alloy under an inert atmosphere, effectively inhibits the volatilization of alloy liquid and splashes.
3. titanium alloy liquid castable is in the casting mold of plasma spraying special type oxide refractory coating, reduces the extent of reaction of titanium alloy liquid and mo(U)ld face, improves the quality of cast(ing) surface.
4. technique is simple, easy to operate.
Detailed description of the invention
The embodiment of the present invention all selects graphite casting mould, at mo(U)ld face lacquer special type oxide coating before using, preparation method is: choose 350 order yittrium oxide powder and 350 order zirconia powders are raw material, according to yittrium oxide powder mass ratio 20%, zirconia powder mass ratio 75%, calcium oxide powder mass ratio 5% carries out ball milling mix homogeneously, and adopts high-temperature electric arc method of smelting to carry out high temperature sintering, is then passed through nodularization pelletize screening and prepares 350 powder materials; Plasma spraying equipment is utilized to be sprayed at mo(U)ld face prepared powder, coating layer thickness 0.1mm��0.3mm.
Embodiment 1
1), alloy raw material: titanium alloy electrode is fixed on vacuum consumable electrode skull crucible electrode stem;
2), shove charge: casting mold is loaded in vacuum consumable electrode skull crucible;
3), malleation is applied: first by body of heater evacuation, when the vacuum in stove is lower than 10Pa, applying argon gas in stove, plus-pressure is to 700Pa;
4), alloy melting: power transmission, electric current 18000A, voltage 40V starting the arc melting;
5), the cast of alloy: after melting alloy raw to poured weights, cast titanium alloy liquid is in the casting mold of plasma spraying special type oxide coating, it is thus achieved that titanium alloy casting.
Material composition proportioning and gained casting composition proportioning are in Table 1.
Embodiment 2
1), alloy raw material: titanium alloy electrode is fixed on vacuum consumable electrode skull crucible electrode stem;
2), shove charge: casting mold is loaded in vacuum consumable electrode skull crucible;
3), malleation is applied: first by body of heater evacuation, when the vacuum in stove is lower than 10Pa, applying argon gas in stove, plus-pressure is to 9000Pa;
4), alloy melting: power transmission, electric current 20000A, voltage 40V starting the arc melting;
5), the cast of alloy: after melting alloy raw to poured weights, cast titanium alloy liquid is in the casting mold of plasma spraying special type oxide coating, it is thus achieved that titanium alloy casting.
Material composition proportioning and gained casting composition proportioning are in Table 1.
Embodiment 3
1), alloy raw material: titanium alloy electrode is fixed on vacuum consumable electrode skull crucible electrode stem;
2), shove charge: casting mold is loaded in vacuum consumable electrode skull crucible;
3), malleation is applied: first by body of heater evacuation, when the vacuum in stove is lower than 10Pa, applying argon gas in stove, plus-pressure is to 8000Pa;
4), alloy melting: power transmission, electric current 19000A, voltage 40V starting the arc melting;
5), the cast of alloy: after melting alloy raw to poured weights, cast titanium alloy liquid is in the casting mold of plasma spraying special type oxide coating, it is thus achieved that titanium alloy casting.
Material composition proportioning and gained casting composition proportioning are in Table 1.
Comparative example 1
1), alloy raw material: titanium alloy electrode is fixed on vacuum consumable electrode skull crucible electrode stem;
2), shove charge: casting mold is loaded in vacuum consumable electrode skull crucible;
3), malleation is applied: first by body of heater evacuation, make the vacuum in stove lower than 10Pa;
4), alloy melting: power transmission, electric current 18000A, voltage 40V starting the arc melting;
5), the cast of alloy: after melting alloy raw to poured weights, cast titanium alloy liquid is in common casting mold, it is thus achieved that titanium alloy casting.
Material composition proportioning and gained casting composition proportioning are in Table 1, table 1, after pouring into a mould as seen, more scaling loss occurs for Al element and V element.
Table 1 composition of raw material and gained casting composition proportioning (percentage by weight)
Above-described embodiment only for technology design and the feature of the present invention are described, its object is to allow person skilled in the art will appreciate that present disclosure and to implement according to this, can not limit the scope of the invention with this. All equivalences made according to spirit of the invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (5)
1. the titanium alloy consumable electrode skull melting casting technique based on inert atmosphere, it is characterized in that: under malleation inert atmosphere, adopt vacuum consumable titanium alloy electrode smelting titanium alloy, and it is cast in the casting mold of special type fire oxide plasma spraying, the preparation method of the casting mold of described special type fire oxide plasma spraying is: take the yittrium oxide powder that mass percent is 20%, the zirconia powder of 75% and the calcium oxide powder of 5% carry out ball milling after mixing, and adopt high-temperature electric arc method of smelting to carry out high temperature sintering, it is then passed through nodularization pelletize screening and prepares 350 powder materials, plasma spraying equipment is utilized prepared powder to be sprayed at mo(U)ld face and get final product.
2. based on the titanium alloy consumable electrode skull melting casting technique of inert atmosphere described in claim 1, it is characterised in that detailed process is:
1) alloy raw material: titanium alloy electrode is fixed on vacuum consumable electrode skull crucible electrode stem;
2) shove charge: casting mold is loaded in vacuum consumable electrode skull crucible;
3) malleation is applied: first by body of heater evacuation, when the vacuum in stove is lower than 10Pa, filling with inert gas in stove, plus-pressure is between 700Pa��9000Pa;
4) alloy melting: electric current 18000A��20000A, voltage 40V, starting the arc melting;
5) cast of alloy: after melting alloy raw to required weight, overturns water jacketed copper crucible, is poured into by alloy liquid in the casting mold of plasma spraying special type fire oxide coating.
3. based on the titanium alloy consumable electrode skull melting casting technique of inert atmosphere described in claim 1 or 2, it is characterised in that: the noble gas of employing is argon.
4. based on the titanium alloy consumable electrode skull melting casting technique of inert atmosphere described in claim 1 or 2, it is characterised in that: select the yittrium oxide powder of 350 orders and the zirconia powder of 350 orders.
5. based on the titanium alloy consumable electrode skull melting casting technique of inert atmosphere described in claim 1 or 2, it is characterized in that: utilize plasma spraying equipment that prepared powder is sprayed at mo(U)ld face, coating layer thickness 0.1mm��0.3mm, casting mold is sand mold, metal mold or graphite mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410758716.8A CN105618723B (en) | 2014-12-10 | 2014-12-10 | A kind of titanium alloy consumable electrode skull melting casting technique based on inert atmosphere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410758716.8A CN105618723B (en) | 2014-12-10 | 2014-12-10 | A kind of titanium alloy consumable electrode skull melting casting technique based on inert atmosphere |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105618723A true CN105618723A (en) | 2016-06-01 |
| CN105618723B CN105618723B (en) | 2018-03-27 |
Family
ID=56034280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410758716.8A Active CN105618723B (en) | 2014-12-10 | 2014-12-10 | A kind of titanium alloy consumable electrode skull melting casting technique based on inert atmosphere |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105618723B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108467971A (en) * | 2018-06-08 | 2018-08-31 | 南京赛达机械制造有限公司 | A kind of erosion resistant titanium alloy blade of aviation engine |
| CN109128154A (en) * | 2018-08-09 | 2019-01-04 | 陕西斯瑞新材料股份有限公司 | A kind of preparation method using vacuum consumable arc-melting TiCu50 master alloy material |
| CN111074095A (en) * | 2018-10-18 | 2020-04-28 | 沈阳铸造研究所有限公司 | Precise forming and casting method for high-volume-fraction titanium-based composite material |
| CN111069532A (en) * | 2018-10-19 | 2020-04-28 | 沈阳铸造研究所有限公司 | Precision casting method for titanium alloy casting with complex cavity structure |
| CN112831689A (en) * | 2019-11-22 | 2021-05-25 | 沈阳铸造研究所有限公司 | Damage-resistant high-toughness cast titanium alloy and precision casting method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4515864A (en) * | 1974-06-28 | 1985-05-07 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom | Solid metal articles from built up splat particles |
| CN1718323A (en) * | 2005-08-05 | 2006-01-11 | 哈尔滨工业大学 | Casting method of large size hole defect less TiA1 base alloy ingot |
| CN101787465A (en) * | 2010-03-03 | 2010-07-28 | 洛阳双瑞精铸钛业有限公司 | Low density high casting property titanium alloy material and preparation method thereof |
| CN102527936A (en) * | 2012-01-19 | 2012-07-04 | 沈阳铸造研究所 | Graphite mould casting method for precise forming of low expansion alloy |
| CN103317114A (en) * | 2013-07-01 | 2013-09-25 | 沈阳铸造研究所 | Metal-mold precision casting method for zirconium and zirconium alloy |
-
2014
- 2014-12-10 CN CN201410758716.8A patent/CN105618723B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4515864A (en) * | 1974-06-28 | 1985-05-07 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom | Solid metal articles from built up splat particles |
| CN1718323A (en) * | 2005-08-05 | 2006-01-11 | 哈尔滨工业大学 | Casting method of large size hole defect less TiA1 base alloy ingot |
| CN101787465A (en) * | 2010-03-03 | 2010-07-28 | 洛阳双瑞精铸钛业有限公司 | Low density high casting property titanium alloy material and preparation method thereof |
| CN102527936A (en) * | 2012-01-19 | 2012-07-04 | 沈阳铸造研究所 | Graphite mould casting method for precise forming of low expansion alloy |
| CN103317114A (en) * | 2013-07-01 | 2013-09-25 | 沈阳铸造研究所 | Metal-mold precision casting method for zirconium and zirconium alloy |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108467971A (en) * | 2018-06-08 | 2018-08-31 | 南京赛达机械制造有限公司 | A kind of erosion resistant titanium alloy blade of aviation engine |
| CN109128154A (en) * | 2018-08-09 | 2019-01-04 | 陕西斯瑞新材料股份有限公司 | A kind of preparation method using vacuum consumable arc-melting TiCu50 master alloy material |
| CN109128154B (en) * | 2018-08-09 | 2020-12-18 | 陕西斯瑞新材料股份有限公司 | Preparation method for smelting TiCu50 master alloy material by adopting vacuum consumable arc |
| CN111074095A (en) * | 2018-10-18 | 2020-04-28 | 沈阳铸造研究所有限公司 | Precise forming and casting method for high-volume-fraction titanium-based composite material |
| CN111074095B (en) * | 2018-10-18 | 2021-07-30 | 沈阳铸造研究所有限公司 | Precise forming and casting method for high-volume-fraction titanium-based composite material |
| CN111069532A (en) * | 2018-10-19 | 2020-04-28 | 沈阳铸造研究所有限公司 | Precision casting method for titanium alloy casting with complex cavity structure |
| CN112831689A (en) * | 2019-11-22 | 2021-05-25 | 沈阳铸造研究所有限公司 | Damage-resistant high-toughness cast titanium alloy and precision casting method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105618723B (en) | 2018-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102367523B (en) | Method for melting titanium alloy containing high-melting point alloy element | |
| CN109161697B (en) | Method for controlling non-metallic inclusions in powder metallurgy high-temperature alloy master alloy | |
| CN109371271B (en) | Non-vacuum smelting and continuous casting process for copper-iron alloy | |
| CN105618723A (en) | Inert atmosphere-based skull melting and casting process adopting consumable titanium alloy electrode | |
| CN104889401A (en) | Method for preparing CuCr25 electrical contact | |
| CN103146943B (en) | Red impure copper refining agent and preparation method thereof | |
| CN102534315B (en) | Al-Mo intermediate alloy and preparing method thereof | |
| CN106636702B (en) | A kind of preparation method of the Ni-based foundry alloy of low oxygen content high-alloying and powder | |
| CN110714156B (en) | Light high-strength corrosion-resistant high-entropy alloy and preparation method thereof | |
| CN102290261A (en) | Silver copper based metal oxide electrical contact material containing adding elements and preparation method thereof | |
| CN108950257A (en) | A method of improving reinforced phase distributing homogeneity in siluer metal oxide contact material | |
| CN102719682A (en) | Smelting method of GH901 alloy | |
| CN103725895A (en) | Remelting electroslag premelting material for high alloy steel round billet containing aluminum and titanium and preparation method thereof | |
| CN107586977A (en) | A kind of preparation method of copper alloy with high strength and high conductivity bar | |
| CN105950882B (en) | A kind of remelting refining slag and its for the electro-slag re-melting method to the high Ti steel alloys of high Al | |
| CN110625127A (en) | Preparation method of cobalt-chromium-nickel-tungsten alloy brazing filler metal powder | |
| CN102534316B (en) | Al-Mo-W-Ti intermediate alloy and preparing method thereof | |
| CN105039796A (en) | Aluminum-tellurium intermediate alloy and preparing method and application thereof | |
| CN104625081B (en) | Method for preparing aluminum alloy powder through salt melting method | |
| CN108660320A (en) | A kind of low-aluminium high titanium-type high temperature alloy electroslag remelting process | |
| CN103820659B (en) | A kind of preparation method of copper chromium master alloy and the preparation method of Cu-Cr-Zr alloy | |
| CN103706783A (en) | High-fusion-welding-resistance CuCr40Te contact material and preparation method thereof | |
| CN107151748A (en) | A kind of method of smelting of gold-germanium alloy solder | |
| CN105543563A (en) | Zinc-copper-titanium intermediate alloy smelting method capable of reducing burning loss of titanium element | |
| CN105950912B (en) | A kind of preparation method of medical Zr 2.5Nb alloy cast ingots |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 110000 Yunfeng South Street, Tiexi District, Shenyang, Liaoning Province, No. 17 Patentee after: SHENYANG RESEARCH INSTITUTE OF FOUNDRY Co.,Ltd. Address before: 110022 No. 17 Yunfeng Street South, Tiexi District, Liaoning, Shenyang Patentee before: Shenyang Research Institute OF Foundry |
|
| CP03 | Change of name, title or address | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 110000 No.17, Yunfeng South Street, Tiexi District, Shenyang City, Liaoning Province Patentee after: Shenyang Foundry Research Institute Co., Ltd. of China National Machinery Research Institute Group Address before: 110000 No.17, Yunfeng South Street, Tiexi District, Shenyang City, Liaoning Province Patentee before: SHENYANG RESEARCH INSTITUTE OF FOUNDRY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |