CN105543526A - Method for preparing high-compactness titanium or titanium alloy by using gel casting formation - Google Patents
Method for preparing high-compactness titanium or titanium alloy by using gel casting formation Download PDFInfo
- Publication number
- CN105543526A CN105543526A CN201511026409.1A CN201511026409A CN105543526A CN 105543526 A CN105543526 A CN 105543526A CN 201511026409 A CN201511026409 A CN 201511026409A CN 105543526 A CN105543526 A CN 105543526A
- Authority
- CN
- China
- Prior art keywords
- titanium
- compactness
- titanium alloy
- gel casting
- described step
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/04—Compacting only by applying fluid pressure, e.g. by cold isostatic pressing [CIP]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1039—Sintering only by reaction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
- B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2201/00—Treatment under specific atmosphere
- B22F2201/20—Use of vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention belongs to the technical field of powder metallurgy, and in particular, relates to a method for preparing high-compactness titanium or a titanium alloy by using gel casting formation. Firstly, an organic monomer-beta hydroxyethyl methacrylate and solvent-toluene are prepared to premixed liquid; mixed powder of pure titanium hydride or titanium hydride and an alloy element is added for preparing pulp; an initiator-benzoyl peroxide and a catalyst-dimethylaniline are added for curing to obtain a blank; the blank is dried, degreased and sintered in vacuum to obtain a sintered body with a relative density of higher than 95%; and then, the cover-less hot isostatic pressure treatment is performed to obtain a titanium alloy part with high compactness (relative density higher than 99.5%). The method is low in cost, suitable for preparation of titanium or titanium alloy products with large size, complex shape and high compactness and suitable for large-scale industrial production.
Description
Technical field
The invention belongs to powder metallurgical technology, particularly a kind of method utilizing gel casting to prepare high-compactness titanium or titanium alloy.
Background technology
Titanium alloy has the excellent properties such as density is low, specific tenacity is high, solidity to corrosion is good, thermotolerance is strong, has a extensive future in aerospace, petrochemical complex, electric power, automobile and other industries.But high cost becomes the key factor limiting its application, the study hotspot being developed to titanium alloy industry of low cost preparation technology.
Compare with traditional founding, powder metallurgy technology has the advantages such as short route, near-net-shape, material use efficiency height, for low-cost titanium alloy hews out new direction.Gel injection is a kind of powder near-net-shape technique, this technique is based on the combination of traditional slurry shaping with polymer chemistry, the organic monomer of crosslinkable polymeric is utilized to make slurry in-situ solidifying form base substrate, through degreasing, sintering obtain part, be particularly suitable for large size, complicated shape titanium alloy part shaping.Due to low cost requirement, conventional gel casting titanium alloy with hydrogenation and dehydrogenization titanium valve for raw material, due to the out-of-shape of powder, the solid content of slurry is very low (solid content of 325 order titanium valves is about 37vol.%), sintered density lower (relative density <95%), is difficult to meet application requiring.Patent of invention as China Patent No. No.200610011526 provides a kind of gel-casting method of complicated shape POROUS TITANIUM, with hydrogenation and dehydrogenization titanium valve for raw material, is suitable for shaping high porosity, high opening rate, the macroscopical POROUS TITANIUM be evenly distributed of hole.Therefore, in order to adapt to the demand of every profession and trade to low cost, large size, complicated shape titanium alloy load assembly, need improve gel injection molding and forming technology.
Summary of the invention
The object of this invention is to provide a kind of method utilizing gel casting to prepare high-compactness titanium or titanium alloy, solve hydrogenation and dehydrogenization titanium valve sintered density low, the problem of titanium alloy loading structural part cannot be applied to.
To achieve these goals, the invention provides following technical scheme:
The invention provides a kind of method utilizing gel casting to prepare high-compactness titanium or titanium alloy, comprise the steps:
(1) premixed liquid is prepared: the chemical composition of premixed liquid by volume per-cent is: organic monomer β-hydroxyethyl methacrylate 30-60%, all the other are solvent toluene;
(2) slurry is prepared: titanium hydride or titanium hydride and alloying element powder added in premixed liquid according to the powder that titanium alloy chemical composition mixes and be mixed with low viscosity slurry, the solid content of slurry is 48-52vol.%;
(3) casting: after adding initiator and catalyzer, slurry is injected mould, organic monomer forms base substrate through crosslinking curing;
(4) dry: base substrate is dry in vacuum drying oven;
(5) degreasing sintered: base substrate is after the degreasing of flowing argon gas, and at 1200-1300 DEG C, vacuum sintering obtains sintered compact;
(6) hip treatment: sintered compact is carried out hip treatment, obtains high-compactness titanium or the titanium alloy component of relative density >99.5%.
In described step (2), the mean particle size of titanium hydride, alloying element powder is 30-50 μm.
In described step (3), initiator addition is the 0.5-1% of titanium hydride or titanium hydride and alloying element powder total mass; Catalyst loading is the 1-1.5% of premixed liquid volume.
In described step (4), drying temperature is 50-70 DEG C, time of drying 4-8h.
In described step (5), flowing argon gas skimming temp is 400-500 DEG C, and degreasing time is 3-5h.
In described step (5), vacuum sintering temperature is 1200-1300 DEG C, and sintering time is 2-3h.
In described step (5), the relative density of vacuum sintering gained sintered compact is greater than 95%.
In described step (6), hip treatment is 950-1000 DEG C, cladless HIP process under 120-200MPa condition.
In described step (6), the high-compactness titanium prepared or the relative density of titanium alloy component are 99.9%.
Described method is suitable for the preparation of large size, complicated shape, high-compactness titanium or titanium alloy product.
Compared with prior art, beneficial effect of the present invention is:
1, be compared with raw material with titanium valve, the solid load of titanium hydride powders slurry is high, be conducive to obtaining high sintered densities, and in sintering process, the fresh titanium surfactivity that titanium hydride dehydrogenation is formed is very high, benefit the diffusion of surface atom, equally can the raising of acceleration of sintering density, the closed pore gap sintered compact of relative density >95% thus can be obtained by vacuum sintering;
2, by hip treatment, the residual porosity in sintered compact can be made to close, reach titanium or the titanium alloy product of density high (relative density is greater than 99.5%).And this hip treatment process is without the need to jacket, cost is low, be suitable for large-scale industrial production.
Embodiment
First organic monomer β-hydroxyethyl methacrylate and solvent toluene are configured to premixed liquid by the method that the present invention utilizes gel casting to prepare high-compactness titanium or titanium alloy, the mixed powder adding pure titanium hydride or titanium hydride and alloying element is configured to slurry, add initiator benzoyl peroxide and catalyzer xylidine, namely base substrate is obtained after solidification, drying, degreasing, vacuum sintering obtains the sintered compact that relative density is greater than 95%, then cladless HIP process is carried out, obtain titanium or the titanium alloy component of density high (relative density is greater than 99.5%).
The invention provides a kind of method utilizing gel casting to prepare high-compactness titanium or titanium alloy, comprise the steps:
(1) prepare premixed liquid: by organic monomer β-hydroxyethyl methacrylate and solvent toluene in proportion 30-60%:40-70% be mixed with premixed liquid;
(2) slurry is prepared: be that the pure titanium hydride of 30-50 μm or titanium hydride and alloying element powder add in premixed liquid according to the powder that titanium alloy chemical composition mixes and be mixed with low viscosity slurry by mean particle size, the solid content of slurry is 48-52vol.%;
(3) casting: after adding the initiator of the 0.5-1wt.% ratio of pure titanium hydride or titanium hydride powders and alloying element powder total mass and the catalyzer of premixed liquid volume 1-1.5% ratio, slurry injects mould, and organic monomer forms base substrate through crosslinking curing;
(4) dry: base substrate in vacuum drying oven in 50-70 DEG C of dry 4-8h;
(5) degreasing sintered: base substrate obtains at 1200-1300 DEG C of vacuum sintering 2-3h the sintered compact that relative density is greater than 95% after 400-500 DEG C of flowing argon gas degreasing 3-5h;
(6) hip treatment: 950-1000 DEG C, under 120-200MPa condition, carry out hip treatment, obtain the high titanium of density or titanium alloy component, relative density >99.5%.
In described step (6), hip treatment is cladless HIP process.
Below in conjunction with embodiment, the present invention is further described.
Embodiment 1-gel casting high-compactness TC4 titanium alloy impeller
1, by organic monomer β-hydroxyethyl methacrylate and solvent toluene in proportion 30%:70% be configured to premixed liquid;
2, the aluminum-vanadium alloy powder be titanium hydride powders and the mean particle size of 50 μm by mean particle size being 30 μm mixes by the formula of Ti-6Al-4V, and then added in premixed liquid by powder mix and be configured to low viscosity slurry, the solid content of slurry is 52vol.%;
3, after adding the initiator of mixed powder quality 0.5wt.% ratio and the catalyzer of premixed liquid volume 1.5% ratio, slurry injects impeller mold, and organic monomer forms impeller base substrate through crosslinking curing;
4, impeller base substrate in vacuum drying oven in 50 DEG C of dry 8h;
5, impeller base substrate obtains at 1200 DEG C of vacuum sintering 3h the impeller sintered compact that relative density is 95.8% after 400 DEG C of flowing argon gas degreasing 5h;
6,950 DEG C, under 200MPa condition, carry out cladless HIP process, obtain the titanium impeller that density is high, relative density is 99.9%.
The pure titanium door handle of embodiment 2-gel casting high-compactness
1, by organic monomer β-hydroxyethyl methacrylate and solvent toluene in proportion 60%:40% be configured to premixed liquid;
2, be that the titanium hydride powders of 30 μm adds in premixed liquid and is configured to low viscosity slurry by mean particle size, the solid content of slurry is 48vol.%;
3, after adding the initiator of titanium hydride powders quality 1wt.% ratio and the catalyzer of premixed liquid volume 1% ratio, slurry injects door handle die, and organic monomer forms door handle base substrate through crosslinking curing;
4, door handle base substrate in vacuum drying oven in 70 DEG C of dry 4h;
5, door handle base substrate obtains at 1300 DEG C of vacuum sintering 2h the door handle sintered compact that relative density is 97.5% after 500 DEG C of flowing argon gas degreasing 3h;
6,1000 DEG C, under 120MPa condition, carry out cladless HIP process, obtain the pure titanium door handle that density is high, relative density is 99.9%.
Claims (10)
1. utilize gel casting to prepare a method for high-compactness titanium or titanium alloy, it is characterized in that: the method comprises the steps:
(1) premixed liquid is prepared: the chemical composition of premixed liquid by volume per-cent is: organic monomer β-hydroxyethyl methacrylate 30-60%, all the other are solvent toluene;
(2) slurry is prepared: titanium hydride or titanium hydride and alloying element powder added in premixed liquid according to the powder that titanium alloy chemical composition mixes and be mixed with low viscosity slurry, the solid content of slurry is 48-52vol.%;
(3) casting: after adding initiator and catalyzer, slurry is injected mould, organic monomer forms base substrate through crosslinking curing;
(4) dry: base substrate is dry in vacuum drying oven;
(5) degreasing sintered: base substrate is after the degreasing of flowing argon gas, and at 1200-1300 DEG C, vacuum sintering obtains sintered compact;
(6) hip treatment: sintered compact is carried out hip treatment, obtains high-compactness titanium or the titanium alloy component of relative density >99.5%.
2. the method utilizing gel casting to prepare high-compactness titanium or titanium alloy according to claim 1, is characterized in that: in described step (2), the mean particle size of titanium hydride, alloying element powder is 30-50 μm.
3. the method utilizing gel casting to prepare high-compactness titanium or titanium alloy according to claim 1, it is characterized in that: in described step (3), initiator addition is the 0.5-1% of titanium hydride or titanium hydride and alloying element powder total mass; Catalyst loading is the 1-1.5% of premixed liquid volume.
4. the method utilizing gel casting to prepare high-compactness titanium or titanium alloy according to claim 1, it is characterized in that: in described step (4), drying temperature is 50-70 DEG C, time of drying 4-8h.
5. the method utilizing gel casting to prepare high-compactness titanium or titanium alloy according to claim 1, is characterized in that: in described step (5), and flowing argon gas skimming temp is 400-500 DEG C, and degreasing time is 3-5h.
6. the method utilizing gel casting to prepare high-compactness titanium or titanium alloy according to claim 1, it is characterized in that: in described step (5), vacuum sintering temperature is 1200-1300 DEG C, and sintering time is 2-3h.
7. the method utilizing gel casting to prepare high-compactness titanium or titanium alloy according to claim 1, it is characterized in that: in described step (5), the relative density of vacuum sintering gained sintered compact is greater than 95%.
8. the method utilizing gel casting to prepare high-compactness titanium or titanium alloy according to claim 1, it is characterized in that: in described step (6), hip treatment is 950-1000 DEG C, cladless HIP process under 120-200MPa condition.
9. the method utilizing gel casting to prepare high-compactness titanium or titanium alloy according to claim 1, is characterized in that: in described step (6), the relative density of the high-compactness titanium alloy component prepared is 99.9%.
10. the method utilizing gel casting to prepare high-compactness titanium or titanium alloy according to claim 1, is characterized in that: described method is suitable for the preparation of large size, complicated shape, high-compactness titanium or titanium alloy product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511026409.1A CN105543526A (en) | 2015-12-31 | 2015-12-31 | Method for preparing high-compactness titanium or titanium alloy by using gel casting formation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511026409.1A CN105543526A (en) | 2015-12-31 | 2015-12-31 | Method for preparing high-compactness titanium or titanium alloy by using gel casting formation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105543526A true CN105543526A (en) | 2016-05-04 |
Family
ID=55823081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511026409.1A Pending CN105543526A (en) | 2015-12-31 | 2015-12-31 | Method for preparing high-compactness titanium or titanium alloy by using gel casting formation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105543526A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111468713A (en) * | 2020-04-14 | 2020-07-31 | 湖南省国银新材料有限公司 | Nickel slurry for electronic cigarette atomization core and preparation method thereof |
| CN112775427A (en) * | 2020-12-23 | 2021-05-11 | 北京科技大学广州新材料研究院 | Preparation method of high-density near-net-shape titanium alloy |
| CN113458399A (en) * | 2021-06-02 | 2021-10-01 | 北京科技大学 | Method for preparing large-size titanium alloy propeller in short process |
| CN113774252A (en) * | 2021-08-17 | 2021-12-10 | 南通大学 | Method for forming titanium alloy by adopting Isobam system gel injection molding |
| CN113976889A (en) * | 2021-10-09 | 2022-01-28 | 北京科技大学 | Preparation method of surface-strengthened titanium and titanium alloy parts based on in-situ TiC |
| CN115612878A (en) * | 2022-08-15 | 2023-01-17 | 深圳市沃尔弗斯珠宝实业股份有限公司 | Environment-friendly titanium alloy and preparation process thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1817511A (en) * | 2006-03-21 | 2006-08-16 | 北京科技大学 | Gel mould-injecting formation of porous titanium with various shape |
| CN101279106A (en) * | 2008-05-21 | 2008-10-08 | 北京科技大学 | Preparation of gel injection molding of porous titanium-cobalt alloy medical implant article |
| CN103801697A (en) * | 2014-02-11 | 2014-05-21 | 北京科技大学 | Method for forming mould-free gel with metal sizing agents through 3D printing |
-
2015
- 2015-12-31 CN CN201511026409.1A patent/CN105543526A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1817511A (en) * | 2006-03-21 | 2006-08-16 | 北京科技大学 | Gel mould-injecting formation of porous titanium with various shape |
| CN101279106A (en) * | 2008-05-21 | 2008-10-08 | 北京科技大学 | Preparation of gel injection molding of porous titanium-cobalt alloy medical implant article |
| CN103801697A (en) * | 2014-02-11 | 2014-05-21 | 北京科技大学 | Method for forming mould-free gel with metal sizing agents through 3D printing |
Non-Patent Citations (1)
| Title |
|---|
| 叶青: "凝胶注模成形钛合金的研究", 《中国优秀博士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111468713A (en) * | 2020-04-14 | 2020-07-31 | 湖南省国银新材料有限公司 | Nickel slurry for electronic cigarette atomization core and preparation method thereof |
| CN112775427A (en) * | 2020-12-23 | 2021-05-11 | 北京科技大学广州新材料研究院 | Preparation method of high-density near-net-shape titanium alloy |
| CN113458399A (en) * | 2021-06-02 | 2021-10-01 | 北京科技大学 | Method for preparing large-size titanium alloy propeller in short process |
| CN113774252A (en) * | 2021-08-17 | 2021-12-10 | 南通大学 | Method for forming titanium alloy by adopting Isobam system gel injection molding |
| CN113976889A (en) * | 2021-10-09 | 2022-01-28 | 北京科技大学 | Preparation method of surface-strengthened titanium and titanium alloy parts based on in-situ TiC |
| CN115612878A (en) * | 2022-08-15 | 2023-01-17 | 深圳市沃尔弗斯珠宝实业股份有限公司 | Environment-friendly titanium alloy and preparation process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105543526A (en) | Method for preparing high-compactness titanium or titanium alloy by using gel casting formation | |
| CN103240412B (en) | Method for preparing powder super-alloy by near net shape | |
| CN110935878B (en) | Injection molding method of titanium alloy part | |
| CN103801696B (en) | Method for preparing powder metallurgy complex shape part by using 3D printing mold | |
| CN101358304B (en) | Nial intermetallic compound porous material and preparation method thereof | |
| CN1325431C (en) | Gel molding-injection base from high-strength ceramic composite materials and shaping method thereof | |
| CN105108154A (en) | Method for preparing special-shaped complex part through powder injection molding technology | |
| CN100581690C (en) | Injection forming method for preparing high Niobium containing Ti-Al alloy components | |
| CN102400028B (en) | Preparation method of metal matrix composite | |
| CN102102156B (en) | Multiphase particle enhanced powder metallurgical titanium-based composite material and preparation method thereof | |
| CN105499576A (en) | Method for preparing porous titanium-aluminium alloy through powder metallurgy | |
| CN101016591A (en) | Method of preparing SiCp/Al composite material with complicated shape and high volume percent ratio | |
| CN109465386B (en) | TiCp/EPS lost foam preparation and steel-based composite material process thereof | |
| CN101518820A (en) | Method for extruding and molding metal powder gelatin | |
| CN102554228B (en) | Method for forming ultrathin-wall porous metal pipe fitting | |
| CN104004942A (en) | TiC particle-reinforced nickel-based composite material and preparation method thereof | |
| CN1686642A (en) | Method of preparing high size precision profiled molybdenum parts | |
| CN103586468B (en) | TiAl alloy powder near-net-shaping method | |
| CN105016751A (en) | Method for preparing zircon refractory material by using particle size distribution combined with gel injection molding process | |
| CN105294160A (en) | Method for preparing porous silicon nitride ceramics through gel casting and microwave sintering | |
| CN104972129A (en) | Method for manufacturing iron-based alloy part | |
| CN106735235B (en) | A kind of cogelled casting method of gradient porous metal | |
| CN1491761A (en) | Method for preparing Kovar alloy electronic package box | |
| Ye et al. | Gelcasting of titanium hydride to fabricate low-cost titanium | |
| CN111230118A (en) | FeAlSi intermetallic compound porous material and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160504 |