CN103981487B - A kind of chromium-aluminum alloy target material its preparation method and application - Google Patents
A kind of chromium-aluminum alloy target material its preparation method and application Download PDFInfo
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Abstract
A kind of chromium-aluminum alloy target material its preparation method and application, relate to intermetallic alloy target.By mass percentage, chromium content is 50% ~ 80% to described chromium-aluminum alloy target material, and aluminium content is 20% ~ 50%.By chromium powder and aluminium powder mixing, obtain chromium aluminium compound; Chromium aluminium compound is placed in nitrogen protection atmosphere environment and is pressed into electrode; By the electrode suppressed, every two electrode weldings become chromium aluminum smelting electrode; Chromium aluminum smelting electrode is carried out first time melting, obtains chromium aluminium ingot; Chromium aluminium ingot is decaptitated, horizontal tail, every 2 chromium aluminium ingot is welded into chromium aluminium secondary smelting electrode; Chromium aluminium secondary smelting electrode is carried out second time melting, obtains chromium aluminium secondary ingot; Chromium aluminium secondary ingot is carried out forge hot; Chromium aluminium secondary ingot after forge hot is heat-treated, then after air cooling cooling, according to the dimensions of target, processes required chromium-aluminum alloy target material.Can apply in the product manufacturing the fields such as bathroom, household electrical appliances, automobile.
Description
Technical field
The present invention relates to intermetallic alloy target, especially relate to a kind of chromium-aluminum alloy target material its preparation method and application.
Background technology
Chinese patent 201310088743 discloses a kind of production method of chromium-aluminum alloy target material, and it comprises (1) is entering batch mixing in V-type mixer by chromium powder and aluminium powder; (2) powder is placed in isostatic cool pressing jacket, sealed after being vacuumized, compacting 10 ~ 20min, is then placed in vacuum SHS process stove, carries out self-propagating reaction, obtains spumescence Ohmax; (3) alloy is crushed into-200 object alloy powders, is placed in isostatic cool pressing jacket, suppresses, obtain Ohmax base; (4) alloy preform is placed in Steel Capsule, carries out Fruit storage, complete, carry out HIP sintering process and obtain Ohmax ingot blank, (5) machining obtains chromium-aluminum alloy target material finished product.This invention after two kinds of raw materials are fully mixed, implement before HIP sintering, take the Alloying Treatment of step (2) especially, prepared chromium-aluminum alloy target material density is high, particle size distribution is even, vacuum plating performance is good.
Chinese patent 201110143829 provide a kind of function of product and quality better, whole technical process does not need to use any water liquid, than the anti-corrosion film coating method of the more environmental protection of existing semidrying plated film, imitative plating sexavalent chrome outward appearance that performance is more superior.Comprise dry clean; Ultraviolet light polymerization primary coat; Evaporation metallizing aluminium film; Evaporation polymeric film; Ultraviolet light polymerization face is coated with.Utilize silicon dioxide film to completely cut off aluminium film and extraneous contact, form full-closed structure, then mixed colours by finish paint, obtain a kind of anti-corrosion plated film of height of imitative plating sexavalent chrome outward appearance, instead of traditional water power depositing process.There is highly corrosion resistant and high weathering performance, plate chromic outward appearance and high-performance closer to traditional water power.
In current surface treatment decoration industry, first spray base is adopted to base material, then PVD chromium plating or aluminium, last topcoating, in finish paint, toning obtains the color a kind of with existing electroplating bright chromium, adopts PVD chromium plating, then after spraying paint, the appearance color of product can only be: L*=72 ~ 75, A*=-0.5 ~ 0.5, (L* represents black and white, and 0 is black in B*=-0.5 ~ 0.5,100 is white, is black between 0 ~ 100; A*: red on the occasion of expression, negative values greenness; B*: yellow on the occasion of expression, negative values blueness); And PVD employing is aluminized, after spraying paint again, the appearance color of product can be controlled in: L*=84 ~ 86, A*=-0.5 ~ 0.5, B*=-0.5 ~ 0.5, the solid colour of this also electroplating bright chromium, but there is following problem in it, 1) difform product surface, particularly 3D product, the variable thickness sample sprayed paint and aberration is existed, makes product seem to a kind of sensation sending out color of people; 2) PVD aluminizes, and because the solidity to corrosion of aluminium is very poor, and causes final product solidity to corrosion poor, can only close symbol solidity to corrosion and require very low standard, as CASS4h, and AASS24h; Far can not meet the normal solidity to corrosion functional requirement in market.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, for the feature of chromium-aluminum alloy target material, provide a kind of chromium-aluminum alloy target material its preparation method and application.
By mass percentage, chromium content is 50% ~ 80% to described chromium-aluminum alloy target material, and aluminium content is 20% ~ 50%.
The preparation method of described chromium-aluminum alloy target material, comprises the following steps:
1) by chromium powder and aluminium powder mixing, chromium aluminium compound is obtained;
2) by step 1) in the chromium aluminium compound that obtains be placed in nitrogen protection atmosphere environment and be pressed into electrode;
3) by step 2) in the electrode that suppresses, every two electrode weldings become chromium aluminum smelting electrode;
4) by step 3) the chromium aluminum smelting electrode that obtains carries out first time melting, obtains chromium aluminium ingot;
5) by step 4) chromium aluminium ingot of obtaining is decaptitated, horizontal tail, and every 2 chromium aluminium ingot is welded into chromium aluminium secondary smelting electrode;
6) by step 5) the chromium aluminium secondary smelting electrode that obtains carries out second time melting, obtains chromium aluminium secondary ingot;
7) by step 6) the chromium aluminium secondary ingot that obtains carries out forge hot, and eliminate the coarse-grain produced in fusion process, make microstructure homogenization;
8) by step 7) chromium aluminium secondary ingot after forge hot heat-treats, and then after air cooling cooling, according to the dimensions of target, processes required chromium-aluminum alloy target material.
In step 1) in, described chromium powder can adopt purity 99.99% chromium powder, and the granularity of chromium powder can be 100 ~ 400 μm; Described aluminium powder can adopt purity 99.99% aluminium powder, and the granularity of aluminium powder can be 200 ~ 500 μm.
In step 2) in, described in be pressed into electrode and can adopt press; The quality of described electrode can be 4.4 ~ 8.0kg/, and wherein chromium mixes cloth with aluminium, and the electrode be pressed into has been placed in nitrogen protection atmosphere environment, prevents material from making moist, is oxidized.
In step 3) in, described welding, can adopt Tig Welding.
In step 4) in, described first time melting, vacuum consumable arc-melting stove can be adopted to carry out melting, and the electric current of melting can be 2 ~ 2.5kA, and the working vacuum degree of melting can be 0.03 ~ 0.09Pa.
In step 5) in, described in decaptitate, horizontal tail, can adopt that lathe is decaptitated, horizontal tail; Described welding, can adopt Tig Welding.
In step 6) in, described second time melting, vacuum consumable arc-melting stove can be adopted to carry out melting, and the electric current of melting can be 3.5 ~ 4.0kA, and the working vacuum degree of melting can be 0.03 ~ 0.09Pa.
In step 7) in, the temperature of described forge hot can be 980 ~ 1080 DEG C.
In step 8) in, described heat treated temperature can be 580 ~ 630 DEG C, and the heat treated time can be 40 ~ 60min; Described processing can adopt oil cooling mode mechanical workout.
Chromium-aluminum alloy target material obtained by the present invention can be applied in the product manufacturing the fields such as bathroom, household electrical appliances, automobile.
As applied in sanitaryware, first spray base is adopted to base material, then PVD chromated aluminum alloy, last topcoating, the appearance color of product can be controlled in: L*=84 ~ 86, A*=-0.5 ~ 0.5, B*=-0.5 ~ 0.5, and solidity to corrosion requirement is very good, can meet the high standard requirement as CASS (anti corrosion test ASTMB368-09) 8h and AASS (SaltSprayTest ASTMG85-9) 48h; Meet market solidity to corrosion functional requirement.
The present invention obtains the chromium-aluminum alloy target material of required specification by follow-up heat forged technology, thermal treatment, Machining Technology, and the chromium-aluminum alloy target material that the present invention prepares, without defects such as obvious pore, segregations, organizes size even.Apply it in existing surface treatment simultaneously, be used for replacing chromium or the aluminium target of PVD plated film, thus reach and meet high anti-corrosion requirement and color even, make in finish paint, do not need to carry out toning again and process.
Compared with prior art, the beneficial effect that the present invention has is:
1) chromium-aluminum alloy target material is applied in actual sanitaryware vacuum plating, and the appearance color of product is very easy to control: L*=84 ~ 86, A*=-0.5 ~ 0.5, in the scope of B*=-0.5 ~ 0.5, can with the solid colour of existing electroplating bright chromium.
2) chromium-aluminum alloy target material of the present invention makes the performance of product can meet the product solidity to corrosion requirement of current bathroom field high-end customer carry out vacuum plating on sanitaryware after, can by testing according to sanitary ware industry standard: CASS (anti corrosion test ASTMB368-09) 8h test and AASS (SaltSprayTest ASTMG85-9) 48h.
3) technique is simple, with low cost, adopts method of the present invention can obtain without defects such as obvious pore, segregations, organizes chromium-aluminum alloy target material of uniform size.
Embodiment
Embodiment 1
The present invention relates to a kind of preparation method of chromium-aluminum alloy target material, comprise the following steps:
(1), weighing batch mixing: to be 99.99% chromium powder by purity with purity be 99.99% aluminium powder be 70% according to quality than chromium, aluminium mass ratio is 30% to take, mix;
(2), electrode compacting: the chromium metal mixed and aluminium alloy material have been placed in nitrogen protection atmosphere environment, prevent material from making moist, be oxidized, the chromium aluminium material prepared evenly is put into press and is pressed into electrode, each electrode controls at 5.8 kilograms, wherein chromium mixes cloth with aluminium, the electrode suppressed has been placed in nitrogen protection atmosphere environment, prevents material from making moist, is oxidized;
(3), grid for welding: adopt Tig Welding to become smelting electrode at suppress two electrodes;
(4), vacuum consumable smelting ingot: the chromium aluminium electrode welded is carried out melting at 15kg vacuum consumable arc-melting stove, electric current is 2.2kA, working vacuum degree is 0.09Pa, adopts diameter to be the copper crucible of 85mm, melts out chromium aluminium ingot of diameter 85mm;
(5), welding secondary smelting electrode: melting ingot lathe decaptitated, horizontal tail, every 2 ingots adopt Tig Weldings to become second electrode;
(6), vacuum consumable smelting secondary ingot: the chromium aluminium second electrode of welding is carried out melting at 15kg vacuum consumable arc-melting stove, and electric current is 3.8kA, and working vacuum degree is 0.09Pa.Adopt diameter to be the copper crucible of 130mm, melt out the chromium aluminium secondary ingot of diameter 130mm.
(7), forge hot process: by the secondary ingot obtained, carry out forge hot at 1030 DEG C, eliminate the coarse-grain produced in fusion process, make microstructure homogenization;
(8), thermal treatment, heat-treated by the ingot after forge hot, temperature is 610 DEG C, and the time is 50min.Then air cooling cooling.
(9), the preparation of chromium-aluminum alloy target material; Dimensions according to target: diameter 10 centimetres, high 4 centimetres, adopt oil cooling mode mechanical workout to go out required chromium-aluminum alloy target material.
(10), the practical application of the chromium-aluminum alloy target material of the present invention's acquisition: as applied in sanitaryware, first spray base is adopted to base material, then PVD chromated aluminum alloy, last topcoating, the appearance color of product is:: L*=85.2, A*=0.1, B*=-0.2.
Obtain product according to sanitary ware industry standard: CASS (anti corrosion test ASTMB368-09) 8h test and AASS (SaltSprayTest ASTMG85-9) 48h test.Test result is all passed through.
Embodiment 2
The present invention relates to a kind of preparation method of chromium-aluminum alloy target material, comprise the following steps:
(1), weighing batch mixing: to be 99.99% chromium powder by purity with purity be 99.99% aluminium powder be 50% according to quality than chromium, aluminium mass ratio is 50% to take, mix;
(2), electrode compacting: the chromium metal mixed and aluminium alloy material have been placed in nitrogen protection atmosphere environment, prevent material from making moist, be oxidized, the chromium aluminium material prepared evenly is put into press and is pressed into electrode, each electrode controls at 5.8 kilograms, wherein chromium mixes cloth with aluminium, the electrode suppressed has been placed in nitrogen protection atmosphere environment, prevents material from making moist, is oxidized;
(3), grid for welding: adopt Tig Welding to become smelting electrode at suppress two electrodes;
(4), vacuum consumable smelting ingot: the chromium aluminium electrode welded is carried out melting at 15kg vacuum consumable arc-melting stove, electric current is 2.0kA, working vacuum degree is 0.03Pa, adopts diameter to be the copper crucible of 85mm, melts out chromium aluminium ingot of diameter 85mm;
(5), welding secondary smelting electrode: melting ingot lathe decaptitated, horizontal tail, every 2 ingots adopt Tig Weldings to become second electrode;
(6), vacuum consumable smelting secondary ingot: the chromium aluminium second electrode of welding is carried out melting at 15kg vacuum consumable arc-melting stove, and electric current is 3.5kA, and working vacuum degree is 0.03Pa.Adopt diameter to be the copper crucible of 130mm, melt out the chromium aluminium secondary ingot of diameter 130mm.
(7), forge hot process: by the secondary ingot obtained, carry out forge hot at 1030 DEG C, eliminate the coarse-grain produced in fusion process, make microstructure homogenization;
(8), thermal treatment, heat-treated by the ingot after forge hot, temperature is 580 DEG C, and the time is 60min.Then air cooling cooling.
(9), the preparation of chromium-aluminum alloy target material; Dimensions according to target: diameter 10 centimetres, high 4 centimetres, adopt oil cooling mode mechanical workout to go out required chromium-aluminum alloy target material.
(10), the practical application of the chromium-aluminum alloy target material of the present invention's acquisition: as applied in sanitaryware, adopt first spray base to base material, then PVD chromated aluminum alloy, last topcoating, the appearance color of product is: L*=6, A*=-0.5, B*=5.
Obtain product according to sanitary ware industry standard: CASS (anti corrosion test ASTMB368-09) 8h test and AASS (SaltSprayTest ASTMG85-9) 48h test.Test result is all passed through.
Embodiment 3
The present invention relates to a kind of preparation method of chromium-aluminum alloy target material, comprise the following steps:
(1), weighing batch mixing: to be 99.99% chromium powder by purity with purity be 99.99% aluminium powder be 80% according to quality than chromium, aluminium mass ratio is 20% to take, mix;
(2), electrode compacting: the chromium metal mixed and aluminium alloy material have been placed in nitrogen protection atmosphere environment, prevent material from making moist, be oxidized, the chromium aluminium material prepared evenly is put into press and is pressed into electrode, each electrode controls at 5.8 kilograms, wherein chromium mixes cloth with aluminium, the electrode suppressed has been placed in nitrogen protection atmosphere environment, prevents material from making moist, is oxidized;
(3), grid for welding: adopt Tig Welding to become smelting electrode at suppress two electrodes;
(4), vacuum consumable smelting ingot: the chromium aluminium electrode welded is carried out melting at 15kg vacuum consumable arc-melting stove, electric current is 2.5kA, working vacuum degree is 0.07Pa, adopts diameter to be the copper crucible of 85mm, melts out chromium aluminium ingot of diameter 85mm;
(5), welding secondary smelting electrode: melting ingot lathe decaptitated, horizontal tail, every 2 ingots adopt Tig Weldings to become second electrode;
(6), vacuum consumable smelting secondary ingot: the chromium aluminium second electrode of welding is carried out melting at 15kg vacuum consumable arc-melting stove, and electric current is 4.0kA, and working vacuum degree is 0.07Pa.Adopt diameter to be the copper crucible of 130mm, melt out the chromium aluminium secondary ingot of diameter 130mm.
(7), forge hot process: by the secondary ingot obtained, carry out forge hot at 1030 DEG C, eliminate the coarse-grain produced in fusion process, make microstructure homogenization;
(8), thermal treatment, heat-treated by the ingot after forge hot, temperature is 630 DEG C, and the time is 40min.Then air cooling cooling.
(9), the preparation of chromium-aluminum alloy target material; Dimensions according to target: diameter 10 centimetres, high 4 centimetres, adopt oil cooling mode mechanical workout to go out required chromium-aluminum alloy target material.
(10), the practical application of the chromium-aluminum alloy target material of the present invention's acquisition: as applied in sanitaryware, adopt first spray base to base material, then PVD chromated aluminum alloy, last topcoating, the appearance color of product is: L*=84, A*=0.3, B*=-0.4.
Obtain product according to sanitary ware industry standard: CASS (anti corrosion test ASTMB368-09) 8h test and AASS (SaltSprayTest ASTMG85-9) 48h test.Test result is all passed through.
Claims (8)
1. a preparation method for chromium-aluminum alloy target material, is characterized in that described chromium-aluminum alloy target material by mass percentage, and chromium content is 50% ~ 80%, and aluminium content is 20% ~ 50%;
Described preparation method, comprises the following steps:
1) by chromium powder and aluminium powder mixing, chromium aluminium compound is obtained;
2) by step 1) in the chromium aluminium compound that obtains be placed in nitrogen protection atmosphere environment and be pressed into electrode;
3) by step 2) in the electrode that suppresses, every two electrode weldings become chromium aluminum smelting electrode;
4) by step 3) the chromium aluminum smelting electrode that obtains carries out first time melting, obtains chromium aluminium ingot;
5) by step 4) chromium aluminium ingot of obtaining is decaptitated, horizontal tail, and every 2 chromium aluminium ingot is welded into chromium aluminium secondary smelting electrode;
6) by step 5) the chromium aluminium secondary smelting electrode that obtains carries out second time melting, obtains chromium aluminium secondary ingot;
7) by step 6) the chromium aluminium secondary ingot that obtains carries out forge hot, and eliminate the coarse-grain produced in fusion process, make microstructure homogenization;
8) by step 7) chromium aluminium secondary ingot after forge hot heat-treats, and then after air cooling cooling, according to the dimensions of target, processes required chromium-aluminum alloy target material.
2. the preparation method of a kind of chromium-aluminum alloy target material as claimed in claim 1, is characterized in that in step 1) in, described chromium powder adopts purity 99.99% chromium powder, and the granularity of chromium powder is 100 ~ 400 μm; Described aluminium powder adopts purity 99.99% aluminium powder, and the granularity of aluminium powder is 200 ~ 500 μm.
3. the preparation method of a kind of chromium-aluminum alloy target material as claimed in claim 1, is characterized in that in step 2) in, described in be pressed into electrode and adopt press; The quality of described electrode is 4.4 ~ 8.0kg/, and wherein chromium mixes cloth with aluminium, and the electrode be pressed into has been placed in nitrogen protection atmosphere environment, prevents material from making moist, is oxidized.
4. the preparation method of a kind of chromium-aluminum alloy target material as claimed in claim 1, is characterized in that in step 3) in, described welding, adopts Tig Welding.
5. the preparation method of a kind of chromium-aluminum alloy target material as claimed in claim 1, it is characterized in that in step 4) in, described first time melting, adopts vacuum consumable arc-melting stove to carry out melting, the electric current of melting is 2 ~ 2.5kA, and the working vacuum degree of melting is 0.03 ~ 0.09Pa.
6. the preparation method of a kind of chromium-aluminum alloy target material as claimed in claim 1, is characterized in that in step 5) in, described in decaptitate, horizontal tail, adopt that lathe is decaptitated, horizontal tail; Described welding adopts Tig Welding.
7. the preparation method of a kind of chromium-aluminum alloy target material as claimed in claim 1, it is characterized in that in step 6) in, described second time melting, adopts vacuum consumable arc-melting stove to carry out melting, the electric current of melting is 3.5 ~ 4.0kA, and the working vacuum degree of melting is 0.03 ~ 0.09Pa.
8. the preparation method of a kind of chromium-aluminum alloy target material as claimed in claim 1, is characterized in that in step 7) in, the temperature of described forge hot is 980 ~ 1080 DEG C; In step 8) in, described heat treated temperature is 580 ~ 630 DEG C, and the heat treated time is 40 ~ 60min; Described processing adopts oil cooling mode mechanical workout.
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| CN111636056A (en) * | 2019-03-01 | 2020-09-08 | 宁波江丰电子材料股份有限公司 | Preparation method of target material |
| CN111438355B (en) * | 2020-04-13 | 2022-02-22 | 河北晟华新材料科技有限公司 | Chromium-aluminum-silicon target material and preparation method thereof |
| CN113652658B (en) * | 2021-08-25 | 2023-03-31 | 湖南稀土金属材料研究院有限责任公司 | La-Zr alloy target and preparation method thereof |
| CN113684456B (en) * | 2021-08-25 | 2023-03-31 | 湖南稀土金属材料研究院有限责任公司 | La-Ti alloy target and preparation method thereof |
| CN114734048B (en) * | 2022-06-14 | 2022-11-25 | 西安赛隆增材技术股份有限公司 | Preparation method of high-chromium aluminum alloy powder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1352313A (en) * | 2001-11-08 | 2002-06-05 | 财团法人工业技术研究院 | Method for producing sputtered aluminium alloy target material by using gas jet powder |
| CN102363215A (en) * | 2011-11-04 | 2012-02-29 | 中南大学 | Method for preparing chromium aluminum alloy target by powder vacuum hot pressed sintering |
| CN103182507A (en) * | 2013-03-19 | 2013-07-03 | 昆山海普电子材料有限公司 | Production method of chromium-aluminium alloy target material |
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| JP5193153B2 (en) * | 2009-10-02 | 2013-05-08 | 株式会社神戸製鋼所 | Hard coating, mold for plastic working, plastic working method, and target for hard coating |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1352313A (en) * | 2001-11-08 | 2002-06-05 | 财团法人工业技术研究院 | Method for producing sputtered aluminium alloy target material by using gas jet powder |
| CN102363215A (en) * | 2011-11-04 | 2012-02-29 | 中南大学 | Method for preparing chromium aluminum alloy target by powder vacuum hot pressed sintering |
| CN103182507A (en) * | 2013-03-19 | 2013-07-03 | 昆山海普电子材料有限公司 | Production method of chromium-aluminium alloy target material |
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