CN113751708A - Special material for titanium alloy powder injection molding and preparation method thereof - Google Patents
Special material for titanium alloy powder injection molding and preparation method thereof Download PDFInfo
- Publication number
- CN113751708A CN113751708A CN202111080747.9A CN202111080747A CN113751708A CN 113751708 A CN113751708 A CN 113751708A CN 202111080747 A CN202111080747 A CN 202111080747A CN 113751708 A CN113751708 A CN 113751708A
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- Prior art keywords
- parts
- titanium alloy
- alloy powder
- silicon
- injection molding
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- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 58
- 239000000843 powder Substances 0.000 title claims abstract description 50
- 239000000463 material Substances 0.000 title claims abstract description 30
- 238000001746 injection moulding Methods 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 38
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 30
- 239000010703 silicon Substances 0.000 claims abstract description 30
- 239000011230 binding agent Substances 0.000 claims abstract description 25
- 239000004417 polycarbonate Substances 0.000 claims abstract description 24
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 24
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 19
- 239000000654 additive Substances 0.000 claims abstract description 19
- 230000000996 additive effect Effects 0.000 claims abstract description 19
- 125000005010 perfluoroalkyl group Chemical group 0.000 claims abstract description 19
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 239000011258 core-shell material Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 10
- 229920001903 high density polyethylene Polymers 0.000 claims description 7
- 239000004700 high-density polyethylene Substances 0.000 claims description 7
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 239000010408 film Substances 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- 239000010409 thin film Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 229910000676 Si alloy Inorganic materials 0.000 claims 1
- UGACIEPFGXRWCH-UHFFFAOYSA-N [Si].[Ti] Chemical class [Si].[Ti] UGACIEPFGXRWCH-UHFFFAOYSA-N 0.000 claims 1
- -1 acrylic acid modified titanium-silicon Chemical class 0.000 claims 1
- 238000005245 sintering Methods 0.000 abstract description 5
- 239000003674 animal food additive Substances 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
Abstract
The invention discloses a special material for titanium alloy powder injection molding and a preparation method thereof, wherein the special material for injection molding is prepared from the following raw materials in parts by weight: 100 parts of titanium alloy powder, 1.5-3.5 parts of silicon-containing polycarbonate, 1.3-1.5 parts of perfluoroalkyl-containing acrylic additive, 0.2-1 part of silane coupling agent, 50-60 parts of mesoporous silica and 10-20 parts of binder. The special material for titanium alloy powder injection molding has excellent thermal stability, weather resistance and mechanical property, and can be used for preparing titanium alloy products with low shrinkage rate, low sintering density and porous structure.
Description
Technical Field
The invention relates to the field of material preparation, in particular to a special material for titanium alloy powder injection molding and a preparation method thereof.
Background
Metal powder injection molding (MIM) is a production technique for the macro-fabrication of micro metal parts with complex shapes, has design flexibility, can reduce material waste, and is one of the most interesting processes for producing titanium alloy parts. There are some technical problems in the preparation of titanium alloy parts, such as the high cost of fine powder raw materials used to prepare titanium alloy parts; titanium and titanium alloys have very high reactivity at higher temperatures and readily react with decomposition products of the binder during thermal debinding and sintering, so that a portion of the titanium or titanium alloy is equivalently eroded away, resulting in high interstitial content; meanwhile, titanium and titanium alloys are susceptible to contamination during processing, degreasing and sintering.
Disclosure of Invention
In order to solve the problems, the invention provides a special material for titanium alloy powder injection molding and a preparation method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that: the special material for injection molding of titanium alloy powder is prepared from titanium alloy powder, silicon-containing polycarbonate, perfluoroalkyl-containing acrylic additive, silane coupling agent, mesoporous silica and binder.
Further, the feed additive is prepared from the following raw materials in parts by weight: 100 parts of titanium alloy powder, 1.5-3.5 parts of silicon-containing polycarbonate, 1.3-1.5 parts of perfluoroalkyl-containing acrylic additive, 0.2-1 part of silane coupling agent, 50-60 parts of mesoporous silica and 10-20 parts of binder.
Preferably, the feed additive is prepared from the following raw materials in parts by weight: 100 parts of titanium alloy powder, 1.5 parts of silicon-containing polycarbonate, 1.3 parts of perfluoroalkyl-containing acrylic additive, 0.2 part of silane coupling agent, 50 parts of mesoporous silica and 50 parts of binder.
Preferably, the feed additive is prepared from the following raw materials in parts by weight: 100 parts of titanium alloy powder, 3.5 parts of silicon-containing polycarbonate, 1.5 parts of perfluoroalkyl-containing acrylic additive, 1 part of silane coupling agent, 60 parts of mesoporous silica and 60 parts of binder.
Preferably, the feed additive is prepared from the following raw materials in parts by weight: 100 parts of titanium alloy powder, 2.5 parts of silicon-containing polycarbonate, 1.4 parts of perfluoroalkyl-containing acrylic additive, 0.6 part of silane coupling agent, 55 parts of mesoporous silica and 55 parts of binder.
Further, the silicon content of the silicon-containing polycarbonate is 4-6%.
Further, the binder may be based on a wax (PW, etc.) or a plastic (POM, etc.), such as 70% PW +20% HDPE +10% EVA or 80% POM +10% HDPE +5% EVA +5% PW.
Further, the invention also provides a preparation method of the special material for titanium alloy powder injection molding, which comprises the following steps:
s1, respectively ultrasonically dispersing mesoporous silica and titanium alloy powder in deionized water to form a suspension, mixing, adding silicon-containing polycarbonate, perfluoroalkyl-containing acrylic acid additive and silane coupling agent, and ultrasonically dispersing for 30min to obtain core-shell titanium alloy powder particles modified by thin films;
and S2, mixing the obtained core-shell titanium alloy powder particles modified by the film with a binder to obtain the special material for titanium alloy powder injection molding.
The special material for titanium alloy powder injection molding has excellent thermal stability, weather resistance and mechanical property, and can be used for preparing titanium alloy products with low shrinkage rate, low sintering density and porous structure.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described in detail below with reference to examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
S1, weighing the following components in parts by weight: 100 parts of titanium alloy powder, 1.5 parts of silicon-containing polycarbonate, 1.3 parts of perfluoroalkyl-containing acrylic additive, 0.2 part of silane coupling agent, 50 parts of mesoporous silica and 50 parts of binder;
s2, respectively ultrasonically dispersing mesoporous silica and titanium alloy powder in deionized water to form a suspension, mixing, adding silicon-containing polycarbonate, perfluoroalkyl-containing acrylic acid additive and silane coupling agent, and ultrasonically dispersing for 30min to obtain core-shell titanium alloy powder particles modified by thin films;
s3, adding the obtained core-shell titanium alloy powder particles modified by the film into a torque rheometer, preheating for 5min at 170 ℃, wherein the rotating speed is 15r/min, adding a binder, and mixing for 30min at the rotating speed of 15r/min under the condition of 170 ℃ to obtain the special material for titanium alloy powder injection molding.
In this embodiment, the silicon content of the silicon-containing polycarbonate is 4%, and the binder is 70% PW +20% HDPE +10% EVA.
Example 2
S1, weighing the following components in parts by weight: 100 parts of titanium alloy powder, 3.5 parts of silicon-containing polycarbonate, 1.5 parts of perfluoroalkyl-containing acrylic additive, 1 part of silane coupling agent, 60 parts of mesoporous silica and 60 parts of binder;
s2, respectively ultrasonically dispersing mesoporous silica and titanium alloy powder in deionized water to form a suspension, mixing, adding silicon-containing polycarbonate, perfluoroalkyl-containing acrylic acid additive and silane coupling agent, and ultrasonically dispersing for 30min to obtain core-shell titanium alloy powder particles modified by thin films;
s3, adding the obtained core-shell titanium alloy powder particles modified by the film into a torque rheometer, preheating for 5min at 170 ℃, wherein the rotating speed is 15r/min, adding a binder, and mixing for 30min at the rotating speed of 15r/min under the condition of 170 ℃ to obtain the special material for titanium alloy powder injection molding.
In this embodiment, the silicon content of the silicon-containing polycarbonate is 5%, and the binder is 70% PW +20% HDPE +10% EVA.
Example 3
S1, weighing the following components in parts by weight: 100 parts of titanium alloy powder, 2.5 parts of silicon-containing polycarbonate, 1.4 parts of perfluoroalkyl-containing acrylic additive, 0.6 part of silane coupling agent, 55 parts of mesoporous silica and 55 parts of binder;
s2, respectively ultrasonically dispersing mesoporous silica and titanium alloy powder in deionized water to form a suspension, mixing, adding silicon-containing polycarbonate, perfluoroalkyl-containing acrylic acid additive and silane coupling agent, and ultrasonically dispersing for 30min to obtain core-shell titanium alloy powder particles modified by thin films;
s3, adding the obtained core-shell titanium alloy powder particles modified by the film into a torque rheometer, preheating for 5min at 170 ℃, wherein the rotating speed is 15r/min, adding a binder, and mixing for 30min at the rotating speed of 15r/min under the condition of 170 ℃ to obtain the special material for titanium alloy powder injection molding.
In this embodiment, the silicon content of the silicon-containing polycarbonate is 6%, and the binder is composed of 80% POM, 10% HDPE, 5% EVA, and 5% PW.
Through detection, the special material for injection molding of the titanium alloy powder obtained in the embodiments 1 to 3 has excellent thermal stability, weather resistance and mechanical property, and can be used for preparing titanium alloy products with low shrinkage, low sintering density and porous structure, wherein the tensile strength of the obtained titanium alloy products is about 948MPa, and the pore diameter is about 2.0 μm.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (8)
1. The special material for titanium alloy powder injection molding is characterized in that: the silicon-containing acrylic acid modified titanium-silicon-based modified titanium-silicon alloy is prepared from titanium alloy powder, silicon-containing polycarbonate, an acrylic acid additive containing perfluoroalkyl, a silane coupling agent, mesoporous silica and a binder.
2. The material of claim 1, wherein the material comprises: the feed is prepared from the following raw materials in parts by weight: 100 parts of titanium alloy powder, 1.5-3.5 parts of silicon-containing polycarbonate, 1.3-1.5 parts of perfluoroalkyl-containing acrylic additive, 0.2-1 part of silane coupling agent, 50-60 parts of mesoporous silica and 10-20 parts of binder.
3. The material of claim 1, wherein the material comprises: the feed is prepared from the following raw materials in parts by weight: 100 parts of titanium alloy powder, 1.5 parts of silicon-containing polycarbonate, 1.3 parts of perfluoroalkyl-containing acrylic additive, 0.2 part of silane coupling agent, 50 parts of mesoporous silica and 50 parts of binder.
4. The material of claim 1, wherein the material comprises: the feed is prepared from the following raw materials in parts by weight: 100 parts of titanium alloy powder, 3.5 parts of silicon-containing polycarbonate, 1.5 parts of perfluoroalkyl-containing acrylic additive, 1 part of silane coupling agent, 60 parts of mesoporous silica and 60 parts of binder.
5. The material of claim 1, wherein the material comprises: the feed is prepared from the following raw materials in parts by weight: 100 parts of titanium alloy powder, 2.5 parts of silicon-containing polycarbonate, 1.4 parts of perfluoroalkyl-containing acrylic additive, 0.6 part of silane coupling agent, 55 parts of mesoporous silica and 55 parts of binder.
6. The material for injection molding of titanium alloy powder according to any one of claims 1 to 5, wherein: the silicon-containing polycarbonate contains 4-6% of silicon.
7. The material for injection molding of titanium alloy powder according to any one of claims 1 to 5, wherein: the binder adopts 70% PW +20% HDPE +10% EVA or 80% POM +10% HDPE +5% EVA +5% PW.
8. The method for preparing a material dedicated for injection molding of titanium alloy powder as claimed in any one of claims 1 to 5, wherein: the method comprises the following steps:
s1, respectively ultrasonically dispersing mesoporous silica and titanium alloy powder in deionized water to form a suspension, mixing, adding silicon-containing polycarbonate, perfluoroalkyl-containing acrylic acid additive and silane coupling agent, and ultrasonically dispersing for 30min to obtain core-shell titanium alloy powder particles modified by thin films;
and S2, mixing the obtained core-shell titanium alloy powder particles modified by the film with a binder to obtain the special material for titanium alloy powder injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111080747.9A CN113751708A (en) | 2021-09-15 | 2021-09-15 | Special material for titanium alloy powder injection molding and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111080747.9A CN113751708A (en) | 2021-09-15 | 2021-09-15 | Special material for titanium alloy powder injection molding and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113751708A true CN113751708A (en) | 2021-12-07 |
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| CN202111080747.9A Pending CN113751708A (en) | 2021-09-15 | 2021-09-15 | Special material for titanium alloy powder injection molding and preparation method thereof |
Country Status (1)
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63238156A (en) * | 1987-03-26 | 1988-10-04 | Kishimoto Sangyo Kk | Polycarbonate composition filled with metal powder or such and production thereof |
| US20110033334A1 (en) * | 2009-08-04 | 2011-02-10 | Gkss-Forschungszentrum Geesthacht Gmbh | Process for producing components composed of titanium or titanium alloy by means of mim technology |
| CN104774443A (en) * | 2015-04-18 | 2015-07-15 | 宁波维科电池股份有限公司 | Storage battery separator |
| CN105733322A (en) * | 2016-01-25 | 2016-07-06 | 渤海大学 | Copper-doped titanium dioxide coating and preparation method thereof |
| CN107081424A (en) * | 2017-05-02 | 2017-08-22 | 常州大学 | A kind of titanium alloy powder injection moulding PP Pipe Compound and preparation method thereof |
| US20190039132A1 (en) * | 2017-08-03 | 2019-02-07 | Champ Tech Optical (Foshan) Corporation | Powder injection molding feedstock and method for manufacturing the same |
| CN109897980A (en) * | 2019-02-22 | 2019-06-18 | 北京科技大学 | The powder injection forming method and titanium or titanium alloy product of titanium or Titanium Powder |
| CN109909497A (en) * | 2019-02-22 | 2019-06-21 | 北京科技大学 | Powder surface treating agent, titanium or titanium alloy powder ejection forming method and product |
| CN112322244A (en) * | 2020-11-23 | 2021-02-05 | 西安航空职业技术学院 | High-temperature-resistant adhesive and preparation method thereof |
-
2021
- 2021-09-15 CN CN202111080747.9A patent/CN113751708A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63238156A (en) * | 1987-03-26 | 1988-10-04 | Kishimoto Sangyo Kk | Polycarbonate composition filled with metal powder or such and production thereof |
| US20110033334A1 (en) * | 2009-08-04 | 2011-02-10 | Gkss-Forschungszentrum Geesthacht Gmbh | Process for producing components composed of titanium or titanium alloy by means of mim technology |
| CN104774443A (en) * | 2015-04-18 | 2015-07-15 | 宁波维科电池股份有限公司 | Storage battery separator |
| CN105733322A (en) * | 2016-01-25 | 2016-07-06 | 渤海大学 | Copper-doped titanium dioxide coating and preparation method thereof |
| CN107081424A (en) * | 2017-05-02 | 2017-08-22 | 常州大学 | A kind of titanium alloy powder injection moulding PP Pipe Compound and preparation method thereof |
| US20190039132A1 (en) * | 2017-08-03 | 2019-02-07 | Champ Tech Optical (Foshan) Corporation | Powder injection molding feedstock and method for manufacturing the same |
| CN109897980A (en) * | 2019-02-22 | 2019-06-18 | 北京科技大学 | The powder injection forming method and titanium or titanium alloy product of titanium or Titanium Powder |
| CN109909497A (en) * | 2019-02-22 | 2019-06-21 | 北京科技大学 | Powder surface treating agent, titanium or titanium alloy powder ejection forming method and product |
| CN112322244A (en) * | 2020-11-23 | 2021-02-05 | 西安航空职业技术学院 | High-temperature-resistant adhesive and preparation method thereof |
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Application publication date: 20211207 |
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