JPS57185902A - Sintering method for porous body - Google Patents
Sintering method for porous bodyInfo
- Publication number
- JPS57185902A JPS57185902A JP7036581A JP7036581A JPS57185902A JP S57185902 A JPS57185902 A JP S57185902A JP 7036581 A JP7036581 A JP 7036581A JP 7036581 A JP7036581 A JP 7036581A JP S57185902 A JPS57185902 A JP S57185902A
- Authority
- JP
- Japan
- Prior art keywords
- sintering
- temp
- lubricant
- assistant
- dewaxing
- 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
- 238000005245 sintering Methods 0.000 title abstract 10
- 238000000034 method Methods 0.000 title 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 4
- 239000000314 lubricant Substances 0.000 abstract 3
- 239000000843 powder Substances 0.000 abstract 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical group [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 2
- 229910052802 copper Inorganic materials 0.000 abstract 2
- 239000010949 copper Substances 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 238000000465 moulding Methods 0.000 abstract 2
- 230000007935 neutral effect Effects 0.000 abstract 2
- 235000010216 calcium carbonate Nutrition 0.000 abstract 1
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 1
- 239000000920 calcium hydroxide Substances 0.000 abstract 1
- 235000011116 calcium hydroxide Nutrition 0.000 abstract 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 239000007790 solid phase Substances 0.000 abstract 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 abstract 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
- B22F3/10—Sintering only
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
PURPOSE:To make sintering of a porous body possible with safe and inexpensive installations in a weak reducing or neutral atmosphere by causing the products in dewaxing and sintering temp. areas respectively of a lubricant and a sintering assistant added to iron or copper type powder to react with each other. CONSTITUTION:A sintering assistant is added at 1-10wt% to a mixture of iron or copper type raw material powder and zinc stearate of a lubricant, and the mixture is molded by pressure, whereby a green compact molding is obtained. A material which self-pyrolyzes in the heating stage up to the sintering temp., and produces CO2 or H2O and metallic oxide or which is reduced by H2 and decomposes to H2O and pure metal is used for the sintering assistant. For example, the former is CaCO3, Ca(OH)2 or the like and the latter is SnO or the like. The above-described molding is heated in a weak reducing or neutral atmosphere, and the lubricant is decomposed at the dewaxing temp., whereby it is decomposed to ZnO and C. The above-described gases produced from the sintering assistant react with ZnO and C at the sintering temp., and activate the surfaces of the powder particles, thereby allowing the same to evaporate and dissipate and sintering the matrix in a solid phase state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7036581A JPS57185902A (en) | 1981-05-11 | 1981-05-11 | Sintering method for porous body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7036581A JPS57185902A (en) | 1981-05-11 | 1981-05-11 | Sintering method for porous body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57185902A true JPS57185902A (en) | 1982-11-16 |
| JPH021202B2 JPH021202B2 (en) | 1990-01-10 |
Family
ID=13429330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7036581A Granted JPS57185902A (en) | 1981-05-11 | 1981-05-11 | Sintering method for porous body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57185902A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04231403A (en) * | 1990-06-08 | 1992-08-20 | Fraunhofer Ges | Preparation of foamable metal body |
| EP1605070A4 (en) * | 2003-03-10 | 2009-11-11 | Mitsubishi Materials Pmg Corp | Iron base sintered alloy excellent in machinability |
| CN104959691A (en) * | 2015-05-29 | 2015-10-07 | 山东理工大学 | Preparing method of surface porous metal device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5098406A (en) * | 1973-12-31 | 1975-08-05 | ||
| JPS50155404A (en) * | 1974-06-08 | 1975-12-15 | ||
| JPS5292807A (en) * | 1976-02-02 | 1977-08-04 | Komatsu Mfg Co Ltd | Process for carbonization and sintering |
-
1981
- 1981-05-11 JP JP7036581A patent/JPS57185902A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5098406A (en) * | 1973-12-31 | 1975-08-05 | ||
| JPS50155404A (en) * | 1974-06-08 | 1975-12-15 | ||
| JPS5292807A (en) * | 1976-02-02 | 1977-08-04 | Komatsu Mfg Co Ltd | Process for carbonization and sintering |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04231403A (en) * | 1990-06-08 | 1992-08-20 | Fraunhofer Ges | Preparation of foamable metal body |
| EP1605070A4 (en) * | 2003-03-10 | 2009-11-11 | Mitsubishi Materials Pmg Corp | Iron base sintered alloy excellent in machinability |
| CN104959691A (en) * | 2015-05-29 | 2015-10-07 | 山东理工大学 | Preparing method of surface porous metal device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH021202B2 (en) | 1990-01-10 |
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