CN102836997A - Metal powder sintered porous body and preparation method thereof - Google Patents
Metal powder sintered porous body and preparation method thereof Download PDFInfo
- Publication number
- CN102836997A CN102836997A CN2011101680545A CN201110168054A CN102836997A CN 102836997 A CN102836997 A CN 102836997A CN 2011101680545 A CN2011101680545 A CN 2011101680545A CN 201110168054 A CN201110168054 A CN 201110168054A CN 102836997 A CN102836997 A CN 102836997A
- Authority
- CN
- China
- Prior art keywords
- porous body
- stainless steel
- sintered porous
- powder
- metal powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Powder Metallurgy (AREA)
Abstract
The invention relates to a metal powder sintered porous body and a preparation method of the metal powder sintered porous body. The metal powder sintered porous body is formed by pressing and forming stainless steel powder and then sintering the pressed and formed stainless steel powder in a vacuum sintering furnace. A plurality of pores are arranged inside the porous body, when liquid enters the porous body, a strong capillary action is generated, and the liquid quickly flows into the porous body. Through the porous body, the liquid can be filtered, heated and gasified, and moreover, fluid flow of the passing fluid can be continuously adjusted, therefore, aims of controlling filtering, heating and gasifying efficiency can be achieved.
Description
Technical field
The present invention relates to a kind of metal powder sintered porous body and preparation method thereof, be applicable to fields such as liquid filtering, heating and gasification.
Background technology
Metal powder sintered porous body is usually used in fields such as the permeation filtration, absorption, heat exchange of liquid.In some field, liquid needs heating in absorption, even gasification.Porous materials has good permeation filtration, adsorption capacity.Simultaneously metal porous body has the good capacity of heat transmission, can pass to the liquid medium through hole to the heat that absorbs rapidly, thereby realizes effects such as the heating of liquid medium and gasifications.
But the heating and gasifying efficient of existing metal powder sintered porous body still is not enough height.
Summary of the invention
The purpose of this invention is to provide a kind of metal powder sintered porous body and preparation method thereof; Be used for permeation filtration, absorption, heating and gasification of liquid medium or the like; This metal powder sintered porous body perforate porous nickel; Liquid permeation filtration, absorption, heating and gasification result are good, and have good high temperature resistant and corrosion resistance.
For realizing above-mentioned purpose, technical scheme provided by the invention is:
A kind of metal powder sintered porous body, by after the powder of stainless steel compression moulding in vacuum sintering furnace sintering form.
A kind of preparation method of metal powder sintered porous body at first is pressed to powder of stainless steel, in vacuum sintering furnace, this powder of stainless steel is carried out sintering then, obtains metal powder sintered porous body.
Preferably, metal powder sintered porous body (integral body) is shaped as cylindrical or ring-shaped cylinder shape.
Preferably, the powder of stainless steel trade mark is 310S (OCr25Ni20) or 316 (OCr17Ni12Mo2).
Preferably, powder of stainless steel is shaped as dendroid or dendroid combines with spherical, combines with spherical thereby the pore shape of the metal powder sintered porous body that sintering obtains is dendroid or dendroid.Adopt dendritic powder, powder sintered driving force is big, improves sintering velocity, shortens sintering time, enhances productivity.And be combined between powder, even pore distribution and major part are the perforate hole, have improved the amount of passing through and the heating and gasifying efficient of liquid.
Preferably, the powder of stainless steel granularity is 0.2-0.3mm.Adopt the powder sintered driving force of this granularity big, improve sintering velocity, shorten sintering time, enhance productivity, and the pore size that the powder sintered back of this granularity forms is moderate, guaranteed liquid heat, gasification result under the fluid flow condition satisfying.
Preferably, vacuum is higher than 10 during the powder of stainless steel sintering
-3Pa.The powder of stainless steel oxidation potential reduces under the condition of high vacuum degree, helps the phase counterdiffusion between the powder particle, has improved sintering velocity, has strengthened the combination between the powder particle.
Preferably, carry out the pre-embossed moulding after powder of stainless steel mixes.Contact between powder well behind the pre-molding, improve sintering velocity and sinter molding effect.
Preferably, the highest sintering temperature of said powder of stainless steel is not less than 1200 ℃, begins to be no less than 15h to the sintering deadline from room temperature.
The present invention has the following advantages: by the metal porous body of the present invention's preparation, and the perforate porous nickel, liquid permeation filtration, absorption, heating and gasification result are good, and have good heat-resisting ability and the corrosive power of anti-the liquid medium.
The specific embodiment
According to one embodiment of the present invention; Adopt powder of stainless steel 310S (OCr25Ni20), it is shaped as dendroid or dendroid combines with spherical, and grain graininess is 0.2-0.3mm; Carry out the pre-embossed moulding after powder of stainless steel mixed, in vacuum drying oven, sinter porous body then into.Vacuum is higher than 10 during the powder of stainless steel sintering
-3Pa, technology is during sintering: the highest sintering temperature is not less than 1200 ℃, is no less than 15h from room temperature to the sintering deadline.
According to another embodiment of the invention; Adopting powder of stainless steel is 316 (OCr17Ni12Mo2); It is shaped as dendroid or dendroid combines with spherical; Grain graininess is 0.2-0.3mm, carries out the pre-embossed moulding after powder of stainless steel is mixed, and in vacuum drying oven, sinters porous body then into.Vacuum is higher than 10 during the powder of stainless steel sintering
-3Pa, technology is during sintering: the highest sintering temperature is not less than 1200 ℃, is no less than 15h from room temperature to the sintering deadline.
Claims (15)
1. a metal powder sintered porous body is characterized in that, this metal powder sintered porous body by powder of stainless steel compression moulding after in vacuum sintering furnace sintering form.
2. metal powder sintered porous body according to claim 1 is characterized in that, said metal powder sintered porous body is shaped as cylindrical or ring-shaped cylinder shape.
3. metal powder sintered porous body according to claim 1 is characterized in that, the pore shape of said metal powder sintered porous body is that dendroid or dendroid combine with spherical.
4. metal powder sintered porous body according to claim 1 is characterized in that, the said powder of stainless steel trade mark is 310S or 316.
5. metal powder sintered porous body according to claim 1 is characterized in that, said powder of stainless steel granularity is 0.2-0.3mm.
6. metal powder sintered porous body according to claim 1 is characterized in that, vacuum is higher than 10 during said powder of stainless steel sintering
-3Pa.
7. metal powder sintered porous body according to claim 3 is characterized in that, carries out the pre-embossed moulding after said powder of stainless steel mixes.
8. according to the described metal powder sintered porous body of one of claim 1 to 7, it is characterized in that the highest sintering temperature is not less than 1200 ℃ in the sintering process of said powder of stainless steel, begin to be no less than 15h to the sintering deadline from room temperature.
9. the preparation method of a metal powder sintered porous body is characterized in that, at first powder of stainless steel is pressed, and in vacuum sintering furnace, this powder of stainless steel is carried out sintering then, obtains metal powder sintered porous body.
10. preparation method according to claim 9 is characterized in that, the said powder of stainless steel trade mark is 310S or 316.
11. preparation method according to claim 9 is characterized in that, said powder of stainless steel is shaped as dendroid or dendroid combines with spherical.
12. preparation method according to claim 9 is characterized in that, said powder of stainless steel granularity is 0.2-0.3mm.
13. preparation method according to claim 9 is characterized in that, carries out the pre-embossed moulding after said powder of stainless steel mixes.
14. preparation method according to claim 9 is characterized in that, vacuum is higher than 10 during said powder of stainless steel sintering
-3Pa.
15., it is characterized in that the highest sintering temperature is not less than 1200 ℃ in the sintering process of said powder of stainless steel according to the described preparation method of one of claim 9 to 14, begin to be no less than 15h to the sintering deadline from room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101680545A CN102836997A (en) | 2011-06-22 | 2011-06-22 | Metal powder sintered porous body and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101680545A CN102836997A (en) | 2011-06-22 | 2011-06-22 | Metal powder sintered porous body and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102836997A true CN102836997A (en) | 2012-12-26 |
Family
ID=47364871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101680545A Pending CN102836997A (en) | 2011-06-22 | 2011-06-22 | Metal powder sintered porous body and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102836997A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205716A (en) * | 2013-04-15 | 2013-07-17 | 光驰科技(上海)有限公司 | Adsorption carrier for evaporation material for evaporation of anti-fouling film |
| CN103834846A (en) * | 2014-02-13 | 2014-06-04 | 华南理工大学 | Porous stainless steel, its manufacturing method, application and mould special for manufacturing method |
| CN104190935A (en) * | 2014-08-31 | 2014-12-10 | 成都易态科技有限公司 | Manufacturing method for porous powder sintered body and preloading molded body for manufacturing sintered body |
| CN107385261A (en) * | 2016-05-17 | 2017-11-24 | 王冰 | A kind of porous material for supercritical water oxidation evaporation wall and preparation method thereof |
| CN108380867A (en) * | 2018-02-02 | 2018-08-10 | 东莞华晶粉末冶金有限公司 | Low-cost and high-performance 17-4PH cerul stainless steel feedings and preparation method thereof |
| CN108856701A (en) * | 2017-05-08 | 2018-11-23 | 东莞华晶粉末冶金有限公司 | Stainless base steel feeding and preparation method thereof, stainless base steel green body and preparation method thereof |
| CN110614370A (en) * | 2019-09-29 | 2019-12-27 | 西安欧中材料科技有限公司 | Preparation method of Ti6Al4V alloy porous material |
| CN112317747A (en) * | 2020-09-09 | 2021-02-05 | 南通通途机电制造有限公司 | Thermal reverse type metal powder sintering process |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3626744A (en) * | 1969-08-28 | 1971-12-14 | Minnesota Mining & Mfg | Smooth high tolerance porous tube and process for making |
| US3975193A (en) * | 1973-04-18 | 1976-08-17 | Airco, Inc. | Powder metallurgy process for producing stainless steel stock |
| EP0778250A1 (en) * | 1995-12-06 | 1997-06-11 | Sumitomo Chemical Company, Limited | Sintered or compacted inorganic porous body and use therof as a filter |
| CN1726127A (en) * | 2002-12-12 | 2006-01-25 | 密科理股份有限公司 | Porous sintered composite materials |
| CN101112721A (en) * | 2007-09-05 | 2008-01-30 | 西北有色金属研究院 | Method for preparing metal polyporous material core for accurate controlling of baffling and micro-flow quantity |
| CN101829785A (en) * | 2010-05-26 | 2010-09-15 | 四川大学 | Sintering diffusion method for preparing iron-based surface composite material |
| CN101890500A (en) * | 2010-07-14 | 2010-11-24 | 安泰科技股份有限公司 | Method for preparing double-layer sintering metal powder filter element |
-
2011
- 2011-06-22 CN CN2011101680545A patent/CN102836997A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3626744A (en) * | 1969-08-28 | 1971-12-14 | Minnesota Mining & Mfg | Smooth high tolerance porous tube and process for making |
| US3975193A (en) * | 1973-04-18 | 1976-08-17 | Airco, Inc. | Powder metallurgy process for producing stainless steel stock |
| EP0778250A1 (en) * | 1995-12-06 | 1997-06-11 | Sumitomo Chemical Company, Limited | Sintered or compacted inorganic porous body and use therof as a filter |
| CN1726127A (en) * | 2002-12-12 | 2006-01-25 | 密科理股份有限公司 | Porous sintered composite materials |
| CN101112721A (en) * | 2007-09-05 | 2008-01-30 | 西北有色金属研究院 | Method for preparing metal polyporous material core for accurate controlling of baffling and micro-flow quantity |
| CN101829785A (en) * | 2010-05-26 | 2010-09-15 | 四川大学 | Sintering diffusion method for preparing iron-based surface composite material |
| CN101890500A (en) * | 2010-07-14 | 2010-11-24 | 安泰科技股份有限公司 | Method for preparing double-layer sintering metal powder filter element |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205716A (en) * | 2013-04-15 | 2013-07-17 | 光驰科技(上海)有限公司 | Adsorption carrier for evaporation material for evaporation of anti-fouling film |
| CN103205716B (en) * | 2013-04-15 | 2015-09-23 | 光驰科技(上海)有限公司 | For the absorption carrier of the deposition material of evaporation anti-soil film |
| CN103834846A (en) * | 2014-02-13 | 2014-06-04 | 华南理工大学 | Porous stainless steel, its manufacturing method, application and mould special for manufacturing method |
| CN103834846B (en) * | 2014-02-13 | 2017-09-26 | 华南理工大学 | Porous stainless steel and its manufacture method, using and manufacture method particular manufacturing craft |
| CN104190935A (en) * | 2014-08-31 | 2014-12-10 | 成都易态科技有限公司 | Manufacturing method for porous powder sintered body and preloading molded body for manufacturing sintered body |
| CN104190935B (en) * | 2014-08-31 | 2017-06-16 | 成都易态科技有限公司 | The preparation method of powder sintered porous body and prepare the pre-molding body of the sintered body |
| CN107385261A (en) * | 2016-05-17 | 2017-11-24 | 王冰 | A kind of porous material for supercritical water oxidation evaporation wall and preparation method thereof |
| CN108856701A (en) * | 2017-05-08 | 2018-11-23 | 东莞华晶粉末冶金有限公司 | Stainless base steel feeding and preparation method thereof, stainless base steel green body and preparation method thereof |
| CN108380867A (en) * | 2018-02-02 | 2018-08-10 | 东莞华晶粉末冶金有限公司 | Low-cost and high-performance 17-4PH cerul stainless steel feedings and preparation method thereof |
| CN110614370A (en) * | 2019-09-29 | 2019-12-27 | 西安欧中材料科技有限公司 | Preparation method of Ti6Al4V alloy porous material |
| CN112317747A (en) * | 2020-09-09 | 2021-02-05 | 南通通途机电制造有限公司 | Thermal reverse type metal powder sintering process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102836997A (en) | Metal powder sintered porous body and preparation method thereof | |
| CN101358304B (en) | Nial intermetallic compound porous material and preparation method thereof | |
| CN103143204B (en) | Method for preparing active carbon composite filter core | |
| CN105135873B (en) | Dynamic pressure electric pulse double-field control sintering furnace and sintering method | |
| CN102167425B (en) | Method for preparing porous carbon-based compound micro electrolysis filter material | |
| CN100465311C (en) | Method for preparing high Nb-Ti-Lu porous material | |
| CN105200260A (en) | Method for preparing porous titanium in in-situ reduction mode from titanium dioxide | |
| CN106994512A (en) | A kind of composite bore diameter copper sintered porous material and its preparation method and application | |
| CN103290248B (en) | A kind of particle reinforce abradable porous titanium preparation method | |
| CN103797142B (en) | Hydrogen storage nickel alloy and the heat energy generation for passing through the alloy | |
| CN114053991B (en) | Three-dimensional petal-shaped lanthanum-iron composite adsorption material and preparation method and application thereof | |
| CN109161776A (en) | A kind of porous high-entropy alloy of pre-alloyed CrMoNbTiZr and preparation method thereof | |
| CN104368805B (en) | Method for producing composite copper powder for ultrathin heat pipe | |
| CN108405848B (en) | A kind of porous nickel framework material and preparation method thereof | |
| CN104131194A (en) | Preparation method of porous aluminum or aluminum alloy | |
| CN105834457A (en) | Preparation method for micro-grade spherical Mo-Ru brazing filler powder | |
| CN100522424C (en) | Method for preparing superfine carbonyl iron powder in use for high performance magnetic powder core | |
| CN102162044B (en) | Preparation method of tungsten carbide/cobalt system porous material | |
| CN108178654A (en) | A kind of method that hot pressing note technique prepares ceramic filter | |
| Li et al. | Advances in hierarchically porous materials: Fundamentals, preparation and applications | |
| CN102942980A (en) | Powder metallurgy composite lubricant and preparation method thereof | |
| CN105274361B (en) | A kind of method that calciothermic reduction titanium dioxide prepares POROUS TITANIUM | |
| JP2009155702A (en) | Method for manufacturing titanium powder sintered compact | |
| CA2891260C (en) | Catalytically active porous element and method of manufacturing same | |
| CN104476653A (en) | Three-dimensional (3D) printing and manufacturing method of porous niobium parts |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121226 |