CN105290392A - 304L stainless steel metal powder injection molding method - Google Patents
304L stainless steel metal powder injection molding method Download PDFInfo
- Publication number
- CN105290392A CN105290392A CN201510897221.8A CN201510897221A CN105290392A CN 105290392 A CN105290392 A CN 105290392A CN 201510897221 A CN201510897221 A CN 201510897221A CN 105290392 A CN105290392 A CN 105290392A
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- degreasing
- metal powder
- steel metal
- powder injection
- 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
Landscapes
- Powder Metallurgy (AREA)
Abstract
The invention discloses a 304L stainless steel metal powder injection molding method. The 304L stainless steel metal powder injection molding method includes the steps that 304L stainless steel powder and a bonding agent are mixed and pelletized to form fed materials; injection molding is carried out to prepare a blank; catalyzing and degreasing are carried; and a negative pressure degreasing, vacuum internal burning and forced cooling three-section atmosphere process is adopted for sintering. A 304L stainless steel part obtained through the 304L stainless steel metal powder injection molding method is high in size accuracy, high in surface accuracy and free of burrs; and in addition, the complex processes of solvent degreasing and heat degreasing are avoided, the production efficiency is high, and the production cost is low.
Description
Technical field
The present invention relates to Metal Injection Molding field, be specifically related to a kind of 304L stainless steel metal powder injection forming method.
Background technology
Metal powder injection molded (MetalInjectionMolding, MIM) is the manufacturing process be injected in by the plasticising compound of metal dust and its binding agent in model.It is in prior powder metallurgy technical foundation, creatively combines the injection molding technology of plastics industry and the emerging forming technique grown up.MIM can the very complicated part of production shape, can obtain to greatest extent net shape part and need not follow-up machined or only need, with minimum machined, be applicable to producing in enormous quantities, production efficiency is high.
Powder injection forming stainless steel has good corrosion resistance, is widely used in the industries such as machinery, chemical industry, boats and ships, automobile, instrument and meter.Patent 201110164890.6 discloses the disposable forming technology of a kind of light communicating component seat, describe 304 stainless injection molding processes, but what adopt is solvent degreasing and thermal debinding, its skimming processes more complicated, degreasing speed is slow, skimmed prod easily produces defect, distortion, and the dimensional accuracy of product and surface accuracy not ideal enough.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of 304L stainless steel metal powder injection forming method, the 304L stainless steel parts of higher dimensional precision and surface accuracy can be obtained, need not follow-up machined, and production cost is low.
For achieving the above object, the invention provides following technical scheme:
A kind of 304L stainless steel metal powder injection forming method, comprises the following steps:
(1) 304L powder of stainless steel and binding agent are carried out mixing after granulate on comminutor, make feeding;
(2) feeding that step (1) obtains is added injection moulding in injection machine, prepare blank;
(3) blank that step (2) obtains is placed in catalysis degreasing stove and makees catalyst with nitric acid gas and carry out catalysis degreasing, it is 1.6 ~ 2.5L/h that nitric acid gas passes into speed, it is 2 ~ 2.5L/h that nitrogen passes into speed, skimming temp is 100 ~ 130 DEG C, degreasing time is 3 ~ 6h, obtains degreasing base;
(4) be placed in vacuum sintering furnace by the degreasing base that step (3) obtains and carry out atmosphere technique sintering, described atmosphere technique sintering is divided into successively in negative pressure degreasing, vacuum and burns and force cooling three phases; The technological parameter in negative pressure degreasing stage is: in vacuum sintering furnace, vacuum values is 2.7 × 10
3~ 4.3 × 10
3pa, passes into the nitrogen that flow is 25 ~ 35L/h, is warming up to 1000 ~ 1100 DEG C with the heating rate of 2 ~ 6 DEG C/min, insulation 90 ~ 120min; In vacuum, the technological parameter in burning stage is: in vacuum sintering furnace, vacuum values is 0.92 ~ 4.1Pa, passes into the argon gas that flow is 20 ~ 28L/h, is warming up to 1350 ~ 1370 DEG C with 5 ~ 10 DEG C/min heating rate, insulation 120 ~ 240min; The technological parameter of pressure cooling stage is: pass into the argon gas that flow is 20 ~ 28L/h, be cooled to room temperature with the rate of temperature fall of 3 ~ 5 DEG C/min; Obtained 304L stainless steel parts.
As the preferred technical solution of the present invention, in described step (1), the component of binding agent and percentage by weight are: polyformaldehyde 86% ~ 91%, high density polyethylene (HDPE) 4% ~ 8%, polypropylene 2% ~ 5%, paraffin 3% ~ 5%.
As the preferred technical solution of the present invention, in described step (1), the particle mean size of 304L powder of stainless steel is 9 ~ 11 μm.
As the preferred technical solution of the present invention, in described step (1), the volume ratio of 304L powder of stainless steel and binding agent is 1: 2 ~ 1: 4.
As the preferred technical solution of the present invention, in described step (1), melting temperature is 165 ~ 195 DEG C, and mixing time is 1.5 ~ 2h.
As the preferred technical solution of the present invention, in described step (2), injection temperature is 160 ~ 190 DEG C, and injection pressure is 60 ~ 127MPa, and mould temperature is 112 ~ 125 DEG C.
As the preferred technical solution of the present invention, in described step (3), the degreasing rate of degreasing base is 7.2% ~ 7.3%.
Beneficial effect of the present invention is:
The blank of 304L powder of stainless steel and binding agent injection moulding is first made catalyst with nitric acid gas and carries out catalysis degreasing by the present invention, carry out the atmosphere technique sintering of syllogic again, the 304L stainless steel parts dimensional accuracy of final acquisition is high, surface accuracy is high, impulse-free robustness phenomenon, and present invention, avoiding the complicated technology of solvent degreasing and thermal debinding, production efficiency is high, production cost is low.
Accompanying drawing explanation
In order to make object of the present invention, technical scheme and beneficial effect clearly, the invention provides following accompanying drawing and being described:
Fig. 1 is the process chart of 304L stainless steel metal powder injection forming method of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
304L is low carbon stainless steel material, and the 304L powder of stainless steel that following examples use is produced by Shijiazhuang Li De dusty material Co., Ltd, and the particle mean size of 304L powder of stainless steel is 9 ~ 11 μm.
Embodiment 1
The 304L stainless steel metal powder injection forming method of embodiment 1, comprises the following steps:
(1) according to following percentage by weight preparation binding agent: polyformaldehyde 86%, high density polyethylene (HDPE) 8%, polypropylene 2%, paraffin 4%; By 304L powder of stainless steel and binding agent according to 1: 2 volume ratio carry out mixing, melting temperature is 170 DEG C, and mixing time is 1.5h, then granulates on comminutor, makes feeding;
(2) feeding that step (1) obtains is added injection moulding in injection machine, injection temperature is 160 DEG C, and injection pressure is 70MPa, and mould temperature is 120 DEG C, prepares blank;
(3) blank that step (2) obtains is placed in catalysis degreasing stove and makees catalyst with nitric acid gas and carry out catalysis degreasing, it is 1.6L/h that nitric acid gas passes into speed, it is 2L/h that nitrogen passes into speed, skimming temp is 100 DEG C, degreasing time is 6h, obtain degreasing base, the degreasing rate of degreasing base is 7.2%;
(4) be placed in vacuum sintering furnace by the degreasing base that step (3) obtains and carry out atmosphere technique sintering, described atmosphere technique sintering is divided into successively in negative pressure degreasing, vacuum and burns and force cooling three phases; The technological parameter in negative pressure degreasing stage is: in vacuum sintering furnace, vacuum values is 3.0 × 10
3pa, passes into the nitrogen that flow is 25L/h, is warming up to 1000 DEG C with the heating rate of 2 DEG C/min, insulation 120min; In vacuum, the technological parameter in burning stage is: in vacuum sintering furnace, vacuum values is 0.95Pa, passes into the argon gas that flow is 20L/h, is warming up to 1350 DEG C with 5 DEG C/min heating rate, insulation 240min; The technological parameter of pressure cooling stage is: pass into the argon gas that flow is 20L/h, be cooled to room temperature with the rate of temperature fall of 3 DEG C/min; Obtained 304L stainless steel parts.
Embodiment 2
The 304L stainless steel metal powder injection forming method of embodiment 2, comprises the following steps:
(1) according to following percentage by weight preparation binding agent: polyformaldehyde 89%, high density polyethylene (HDPE) 5%, polypropylene 2%, paraffin 4%; By 304L powder of stainless steel and binding agent according to 1: 3 volume ratio carry out mixing, melting temperature is 180 DEG C, and mixing time is 1.8h, then granulates on comminutor, makes feeding;
(2) feeding that step (1) obtains is added injection moulding in injection machine, injection temperature is 180 DEG C, and injection pressure is 100MPa, and mould temperature is 120 DEG C, prepares blank;
(3) blank that step (2) obtains is placed in catalysis degreasing stove and makees catalyst with nitric acid gas and carry out catalysis degreasing, it is 2L/h that nitric acid gas passes into speed, it is 2.3L/h that nitrogen passes into speed, skimming temp is 120 DEG C, degreasing time is 4h, obtain degreasing base, the degreasing rate of degreasing base is 7.3%;
(4) be placed in vacuum sintering furnace by the degreasing base that step (3) obtains and carry out atmosphere technique sintering, described atmosphere technique sintering is divided into successively in negative pressure degreasing, vacuum and burns and force cooling three phases; The technological parameter in negative pressure degreasing stage is: in vacuum sintering furnace, vacuum values is 3.5 × 10
3pa, passes into the nitrogen that flow is 30L/h, is warming up to 1100 DEG C with the heating rate of 4 DEG C/min, insulation 100min; In vacuum, the technological parameter in burning stage is: in vacuum sintering furnace, vacuum values is 2.0Pa, passes into the argon gas that flow is 25L/h, is warming up to 1360 DEG C with 8 DEG C/min heating rate, insulation 200min; The technological parameter of pressure cooling stage is: pass into the argon gas that flow is 25L/h, be cooled to room temperature with the rate of temperature fall of 4 DEG C/min; Obtained 304L stainless steel parts.
Embodiment 3
The 304L stainless steel metal powder injection forming method of embodiment 3, comprises the following steps:
(1) according to following percentage by weight preparation binding agent: polyformaldehyde 91%, high density polyethylene (HDPE) 4%, polypropylene 2%, paraffin 3%; By 304L powder of stainless steel and binding agent according to 1: 4 volume ratio carry out mixing, melting temperature is 195 DEG C, and mixing time is 1.5h, then granulates on comminutor, makes feeding;
(2) feeding that step (1) obtains is added injection moulding in injection machine, injection temperature is 190 DEG C, and injection pressure is 120MPa, and mould temperature is 125 DEG C, prepares blank;
(3) blank that step (2) obtains is placed in catalysis degreasing stove and makees catalyst with nitric acid gas and carry out catalysis degreasing, it is 2.5L/h that nitric acid gas passes into speed, it is 2.5L/h that nitrogen passes into speed, skimming temp is 130 DEG C, degreasing time is 3h, obtain degreasing base, the degreasing rate of degreasing base is 7.2%;
(4) be placed in vacuum sintering furnace by the degreasing base that step (3) obtains and carry out atmosphere technique sintering, described atmosphere technique sintering is divided into successively in negative pressure degreasing, vacuum and burns and force cooling three phases; The technological parameter in negative pressure degreasing stage is: in vacuum sintering furnace, vacuum values is 4.2 × 10
3pa, passes into the nitrogen that flow is 35L/h, is warming up to 1100 DEG C with the heating rate of 6 DEG C/min, insulation 90min; In vacuum, the technological parameter in burning stage is: in vacuum sintering furnace, vacuum values is 4.1Pa, passes into the argon gas that flow is 28L/h, is warming up to 1370 DEG C with 10 DEG C/min heating rate, insulation 120min; The technological parameter of pressure cooling stage is: pass into the argon gas that flow is 28L/h, be cooled to room temperature with the rate of temperature fall of 5 DEG C/min; Obtained 304L stainless steel parts.
The 304L stainless steel parts dimensional accuracy that embodiment 1-3 obtains is high, surface accuracy is high, impulse-free robustness phenomenon, and concrete testing result is as follows:
What finally illustrate is, above preferred embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although by above preferred embodiment to invention has been detailed description, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from claims of the present invention limited range.
Claims (7)
1. a 304L stainless steel metal powder injection forming method, is characterized in that: comprise the following steps:
(1) 304L powder of stainless steel and binding agent are carried out mixing after granulate on comminutor, make feeding;
(2) feeding that step (1) obtains is added injection moulding in injection machine, prepare blank;
(3) blank that step (2) obtains is placed in catalysis degreasing stove and makees catalyst with nitric acid gas and carry out catalysis degreasing, it is 1.6 ~ 2.5L/h that nitric acid gas passes into speed, and it is 2 ~ 2.5L/h that nitrogen passes into speed, and skimming temp is 100 ~ 130 DEG C, degreasing time is 3 ~ 6h, obtains degreasing base;
(4) be placed in vacuum sintering furnace by the degreasing base that step (3) obtains and carry out atmosphere technique sintering, described atmosphere technique sintering is divided into successively in negative pressure degreasing, vacuum and burns and force cooling three phases; The technological parameter in negative pressure degreasing stage is: in vacuum sintering furnace, vacuum values is 2.7 × 10
3~ 4.3 × 10
3pa, passes into the nitrogen that flow is 25 ~ 35L/h, is warming up to 1000 ~ 1100 DEG C with the heating rate of 2 ~ 6 DEG C/min, insulation 90 ~ 120min; In vacuum, the technological parameter in burning stage is: in vacuum sintering furnace, vacuum values is 0.92 ~ 4.1Pa, passes into the argon gas that flow is 20 ~ 28L/h, is warming up to 1350 ~ 1370 DEG C with 5 ~ 10 DEG C/min heating rate, insulation 120 ~ 240min; The technological parameter of pressure cooling stage is: pass into the argon gas that flow is 20 ~ 28L/h, be cooled to room temperature with the rate of temperature fall of 3 ~ 5 DEG C/min; Obtained 304L stainless steel parts.
2. 304L stainless steel metal powder injection forming method according to claim 1, it is characterized in that: in described step (1), the component of binding agent and percentage by weight are: polyformaldehyde 86% ~ 91%, high density polyethylene (HDPE) 4% ~ 8%, polypropylene 2% ~ 5%, paraffin 3% ~ 5%.
3. 304L stainless steel metal powder injection forming method according to claim 1, is characterized in that: in described step (1), and the particle mean size of 304L powder of stainless steel is 9 ~ 11 μm.
4. 304L stainless steel metal powder injection forming method according to claim 1, is characterized in that: in described step (1), and the volume ratio of 304L powder of stainless steel and binding agent is 1:2 ~ 1:4.
5. 304L stainless steel metal powder injection forming method according to claim 1, it is characterized in that: in described step (1), melting temperature is 165 ~ 195 DEG C, and mixing time is 1.5 ~ 2h.
6. 304L stainless steel metal powder injection forming method according to claim 1, it is characterized in that: in described step (2), injection temperature is 160 ~ 190 DEG C, and injection pressure is 60 ~ 127MPa, and mould temperature is 112 ~ 125 DEG C.
7. 304L stainless steel metal powder injection forming method according to claim 1, is characterized in that: in described step (3), and the degreasing rate of degreasing base is 7.2% ~ 7.3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510897221.8A CN105290392B (en) | 2015-12-08 | 2015-12-08 | A kind of 304L stainless steel metals powder injection forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510897221.8A CN105290392B (en) | 2015-12-08 | 2015-12-08 | A kind of 304L stainless steel metals powder injection forming method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105290392A true CN105290392A (en) | 2016-02-03 |
| CN105290392B CN105290392B (en) | 2017-09-29 |
Family
ID=55188587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510897221.8A Expired - Fee Related CN105290392B (en) | 2015-12-08 | 2015-12-08 | A kind of 304L stainless steel metals powder injection forming method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105290392B (en) |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728730A (en) * | 2016-04-08 | 2016-07-06 | 玉溪大红山矿业有限公司 | Stainless steel-based feedstock for injection molding and preparation method thereof |
| CN105750551A (en) * | 2016-04-07 | 2016-07-13 | 惠州威博精密科技有限公司 | Method for manufacturing pulley sheets of headphones |
| CN106552942A (en) * | 2017-02-06 | 2017-04-05 | 深圳市卡德姆科技有限公司 | A kind of method of the modeling based binder and injection moulding copper and copper alloy parts for copper and copper alloy injection moulding |
| CN107414083A (en) * | 2016-05-24 | 2017-12-01 | 台耀科技股份有限公司 | A kind of method of metal injection molding and its manufactured metal works |
| CN107790727A (en) * | 2017-09-21 | 2018-03-13 | 东莞华晶粉末冶金有限公司 | 440C stainless steels, 440C stainless steels injection moulding feeding and preparation method |
| CN108339974A (en) * | 2018-02-06 | 2018-07-31 | 东莞华晶粉末冶金有限公司 | One kind 304 powder of stainless steel injection moulding feeding and preparation method thereof |
| CN109454238A (en) * | 2018-11-08 | 2019-03-12 | 江苏精研科技股份有限公司 | A method of engine oil pressure control valve valve pocket is prepared by injection moulding |
| CN109848420A (en) * | 2019-04-02 | 2019-06-07 | 湖南英捷高科技有限责任公司 | A kind of 440C stainless steel metal powder injection forming method and its product |
| CN110405214A (en) * | 2019-08-26 | 2019-11-05 | 潍坊歌尔精密制造有限公司 | The preparation method of stainless steel material |
| CN110538992A (en) * | 2019-09-19 | 2019-12-06 | 深圳市鑫迪科技有限公司 | Diffusion welding process for tungsten alloy and 316L stainless steel |
| CN110586943A (en) * | 2019-07-24 | 2019-12-20 | 嘉善日茸精密工业有限公司 | Method for manufacturing groove needle of warp knitting machine |
| CN111390185A (en) * | 2020-04-14 | 2020-07-10 | 东莞市金材五金有限公司 | Production method of titanium alloy part |
| CN111390178A (en) * | 2020-05-07 | 2020-07-10 | 广州有研粉体材料科技有限公司 | Metal injection molding stainless steel high-polishing material and preparation method and application thereof |
| CN111774571A (en) * | 2020-08-03 | 2020-10-16 | 深圳市光为光通信科技有限公司 | Optical module shell and preparation method thereof |
| CN112247150A (en) * | 2020-09-30 | 2021-01-22 | 东风商用车有限公司 | Metal injection molding synchronizer support column and technological method thereof |
| CN112427639A (en) * | 2020-12-07 | 2021-03-02 | 精研（东莞）科技发展有限公司 | MIM sintering process of 316L stainless steel |
| CN112743081A (en) * | 2020-12-14 | 2021-05-04 | 广州市天鹰精密工具有限公司 | Manufacturing method of cross for acetabular file and cross for acetabular file |
| CN113245549A (en) * | 2021-04-02 | 2021-08-13 | 北京钢研高纳科技股份有限公司 | High-temperature alloy regulator and preparation method thereof |
| CN113634749A (en) * | 2021-08-11 | 2021-11-12 | 阳江市天骄家庭用品制造有限公司 | Powder injection manufacturing method for producing anticorrosive and antirust knife scissors |
| CN113634750A (en) * | 2021-08-11 | 2021-11-12 | 阳江市天骄家庭用品制造有限公司 | Powder injection manufacturing method for high-precision and high-quality knife and scissors production |
| CN114082950A (en) * | 2021-11-04 | 2022-02-25 | 金上晋科技(东莞)有限公司 | Method for improving mechanical property of SUS630 stainless steel injection molding finished product |
| CN114737117A (en) * | 2022-03-31 | 2022-07-12 | 广东潮艺金属实业有限公司 | High-hardness and high-rust-resistance stainless steel 316L and sintering process thereof |
| CN114807781A (en) * | 2022-02-28 | 2022-07-29 | 上海富驰高科技股份有限公司 | Injection molding mass-producible ultrahigh-strength stainless steel and preparation process thereof |
| CN115213398A (en) * | 2022-07-07 | 2022-10-21 | 杭州巨星科技股份有限公司 | Metal powder injection molding binder and using method thereof |
| CN115338405A (en) * | 2022-08-31 | 2022-11-15 | 中南大学 | Preparation method of micro-injection molded iron-based small-modulus gear |
| CN117226094A (en) * | 2023-10-28 | 2023-12-15 | 广东凯洋新材料有限公司 | Metal injection molding process |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111485161B (en) * | 2020-04-14 | 2021-12-07 | 东莞市金材五金有限公司 | Process method for improving strength of SUS316 stainless steel through powder metallurgy |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5354534A (en) * | 1991-04-30 | 1994-10-11 | Sumitomo Electric Industries, Ltd. | Method for manufacturing sintered parts |
| CN101342591A (en) * | 2008-08-29 | 2009-01-14 | 安泰科技股份有限公司 | Method of manufacturing powder metallurgy nitrogen/high nitrogen containing stainless steel parts |
| CN102764892A (en) * | 2011-05-04 | 2012-11-07 | 山东金聚粉末冶金有限公司 | Slider block and production method thereof |
| CN103706793A (en) * | 2013-12-18 | 2014-04-09 | 潍坊学院 | Preparation method of low-nickel high-nitrogen austenitic stainless steel product |
| CN105108154A (en) * | 2015-09-21 | 2015-12-02 | 深圳艾利门特科技有限公司 | Method for preparing special-shaped complex part through powder injection molding technology |
-
2015
- 2015-12-08 CN CN201510897221.8A patent/CN105290392B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5354534A (en) * | 1991-04-30 | 1994-10-11 | Sumitomo Electric Industries, Ltd. | Method for manufacturing sintered parts |
| CN101342591A (en) * | 2008-08-29 | 2009-01-14 | 安泰科技股份有限公司 | Method of manufacturing powder metallurgy nitrogen/high nitrogen containing stainless steel parts |
| CN102764892A (en) * | 2011-05-04 | 2012-11-07 | 山东金聚粉末冶金有限公司 | Slider block and production method thereof |
| CN103706793A (en) * | 2013-12-18 | 2014-04-09 | 潍坊学院 | Preparation method of low-nickel high-nitrogen austenitic stainless steel product |
| CN105108154A (en) * | 2015-09-21 | 2015-12-02 | 深圳艾利门特科技有限公司 | Method for preparing special-shaped complex part through powder injection molding technology |
Cited By (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750551A (en) * | 2016-04-07 | 2016-07-13 | 惠州威博精密科技有限公司 | Method for manufacturing pulley sheets of headphones |
| CN105728730A (en) * | 2016-04-08 | 2016-07-06 | 玉溪大红山矿业有限公司 | Stainless steel-based feedstock for injection molding and preparation method thereof |
| CN105728730B (en) * | 2016-04-08 | 2018-04-13 | 玉溪大红山矿业有限公司 | A kind of injection moulding stainless base steel feeding and preparation method thereof |
| CN107414083A (en) * | 2016-05-24 | 2017-12-01 | 台耀科技股份有限公司 | A kind of method of metal injection molding and its manufactured metal works |
| CN106552942A (en) * | 2017-02-06 | 2017-04-05 | 深圳市卡德姆科技有限公司 | A kind of method of the modeling based binder and injection moulding copper and copper alloy parts for copper and copper alloy injection moulding |
| CN107790727A (en) * | 2017-09-21 | 2018-03-13 | 东莞华晶粉末冶金有限公司 | 440C stainless steels, 440C stainless steels injection moulding feeding and preparation method |
| CN108339974A (en) * | 2018-02-06 | 2018-07-31 | 东莞华晶粉末冶金有限公司 | One kind 304 powder of stainless steel injection moulding feeding and preparation method thereof |
| CN109454238A (en) * | 2018-11-08 | 2019-03-12 | 江苏精研科技股份有限公司 | A method of engine oil pressure control valve valve pocket is prepared by injection moulding |
| CN109848420A (en) * | 2019-04-02 | 2019-06-07 | 湖南英捷高科技有限责任公司 | A kind of 440C stainless steel metal powder injection forming method and its product |
| CN110586943A (en) * | 2019-07-24 | 2019-12-20 | 嘉善日茸精密工业有限公司 | Method for manufacturing groove needle of warp knitting machine |
| CN110405214A (en) * | 2019-08-26 | 2019-11-05 | 潍坊歌尔精密制造有限公司 | The preparation method of stainless steel material |
| CN110405214B (en) * | 2019-08-26 | 2021-11-05 | 怡力精密制造有限公司 | Preparation method of stainless steel material |
| CN110538992A (en) * | 2019-09-19 | 2019-12-06 | 深圳市鑫迪科技有限公司 | Diffusion welding process for tungsten alloy and 316L stainless steel |
| CN111390185A (en) * | 2020-04-14 | 2020-07-10 | 东莞市金材五金有限公司 | Production method of titanium alloy part |
| CN111390178A (en) * | 2020-05-07 | 2020-07-10 | 广州有研粉体材料科技有限公司 | Metal injection molding stainless steel high-polishing material and preparation method and application thereof |
| CN111774571A (en) * | 2020-08-03 | 2020-10-16 | 深圳市光为光通信科技有限公司 | Optical module shell and preparation method thereof |
| CN112247150A (en) * | 2020-09-30 | 2021-01-22 | 东风商用车有限公司 | Metal injection molding synchronizer support column and technological method thereof |
| CN112427639A (en) * | 2020-12-07 | 2021-03-02 | 精研（东莞）科技发展有限公司 | MIM sintering process of 316L stainless steel |
| CN112743081B (en) * | 2020-12-14 | 2023-01-17 | 广州市天鹰精密工具有限公司 | Manufacturing method of cross for acetabular file and cross for acetabular file |
| CN112743081A (en) * | 2020-12-14 | 2021-05-04 | 广州市天鹰精密工具有限公司 | Manufacturing method of cross for acetabular file and cross for acetabular file |
| CN113245549B (en) * | 2021-04-02 | 2022-01-14 | 北京钢研高纳科技股份有限公司 | High-temperature alloy regulator and preparation method thereof |
| CN113245549A (en) * | 2021-04-02 | 2021-08-13 | 北京钢研高纳科技股份有限公司 | High-temperature alloy regulator and preparation method thereof |
| CN113634749A (en) * | 2021-08-11 | 2021-11-12 | 阳江市天骄家庭用品制造有限公司 | Powder injection manufacturing method for producing anticorrosive and antirust knife scissors |
| CN113634750A (en) * | 2021-08-11 | 2021-11-12 | 阳江市天骄家庭用品制造有限公司 | Powder injection manufacturing method for high-precision and high-quality knife and scissors production |
| CN114082950A (en) * | 2021-11-04 | 2022-02-25 | 金上晋科技(东莞)有限公司 | Method for improving mechanical property of SUS630 stainless steel injection molding finished product |
| CN114082950B (en) * | 2021-11-04 | 2024-04-16 | 金上晋科技(东莞)有限公司 | Method for improving mechanical properties of SUS630 stainless steel injection molding finished product |
| CN114807781A (en) * | 2022-02-28 | 2022-07-29 | 上海富驰高科技股份有限公司 | Injection molding mass-producible ultrahigh-strength stainless steel and preparation process thereof |
| CN114737117A (en) * | 2022-03-31 | 2022-07-12 | 广东潮艺金属实业有限公司 | High-hardness and high-rust-resistance stainless steel 316L and sintering process thereof |
| CN115213398A (en) * | 2022-07-07 | 2022-10-21 | 杭州巨星科技股份有限公司 | Metal powder injection molding binder and using method thereof |
| CN115338405A (en) * | 2022-08-31 | 2022-11-15 | 中南大学 | Preparation method of micro-injection molded iron-based small-modulus gear |
| CN115338405B (en) * | 2022-08-31 | 2024-06-04 | 中南大学 | Preparation method of microinjection-formed iron-based small modulus gear |
| CN117226094A (en) * | 2023-10-28 | 2023-12-15 | 广东凯洋新材料有限公司 | Metal injection molding process |
| CN117226094B (en) * | 2023-10-28 | 2024-03-26 | 广东凯洋新材料有限公司 | Metal injection molding process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105290392B (en) | 2017-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105290392A (en) | 304L stainless steel metal powder injection molding method | |
| CN104690271B (en) | A kind of power injection molding of inexpensive hydrogenation dehydrogenation titanium powder | |
| CN103801697B (en) | A kind of metal paste 3D prints without mould gel forming method | |
| CN105478776B (en) | A kind of method that low-temperature sintering prepares high-compactness pure tungsten product | |
| CN103240418B (en) | Near-net shaping method for charging turbine with hollow internal structure | |
| CN106977184A (en) | A kind of ceramic part and its production technology | |
| CN105108154A (en) | Method for preparing special-shaped complex part through powder injection molding technology | |
| CN101479063B (en) | Fabrication method of alloy parts by metal injection molding and the alloy parts | |
| CN104308157A (en) | Process method for powder metallurgy | |
| CN103981436A (en) | Metal powder injection molded high-strength martensite aged steel and preparation method thereof | |
| CN102177324B (en) | Method of manufacturing variable vane | |
| CN105537595A (en) | MIM manufacturing process for non-magnetic 17-4P stainless steel parts | |
| CN101520287A (en) | Method for preparing radiator element with complicated shape | |
| CN105414549A (en) | Metal powder injection molding method for product with inverted buckle structure | |
| CN109047753A (en) | A kind of preparation method suitable for mobile phone center MIM stainless steel feeding and its product | |
| CN104972129A (en) | Method for manufacturing iron-based alloy part | |
| CN105060896A (en) | Preparation method of silicon carbide ceramic precision device | |
| CN103056369A (en) | Process for producing part by powder metallurgy | |
| CN103433492B (en) | Blow molding method for powder of metal hollow product | |
| JP2004525264A (en) | Manufacture of structural members by metal injection molding | |
| CN105149589A (en) | Injection molding process of metal powder metallurgical workpiece | |
| CN105234414A (en) | Process for manufacturing filter element through low-pressure injection molding | |
| CN104801817A (en) | Novel cutting opening and processing method thereof | |
| CN104551571A (en) | Method for producing members through near-isothermal stamping by aid of TiAl pre-alloy powder | |
| CN104439997A (en) | Method for quickly manufacturing metal mold |
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 | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191230 Address after: 402160 No.319, Honghe Avenue, Yongchuan District, Chongqing (industry university research demonstration area, Chongqing University of Arts and Science) Patentee after: CHONGQING DIEN TECHNOLOGY DEVELOPMENT CO.,LTD. Address before: 402168 double bamboo town, Yongchuan District, Chongqing, China Patentee before: Chongqing University of Arts and Sciences |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170929 Termination date: 20211208 |