US1856607A - Process for producing sintered alloys - Google Patents
Process for producing sintered alloys Download PDFInfo
- Publication number
- US1856607A US1856607A US499980A US49998030A US1856607A US 1856607 A US1856607 A US 1856607A US 499980 A US499980 A US 499980A US 49998030 A US49998030 A US 49998030A US 1856607 A US1856607 A US 1856607A
- Authority
- US
- United States
- Prior art keywords
- producing sintered
- sintered alloys
- articles
- oils
- oil
- 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.)
- Expired - Lifetime
Links
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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
Definitions
- oils containing ated acids are available foruseinthis de to the present invention, the 3 articles are strengthened after com ression Such oils which contain 'the addition of the oils vantage; generally an oil is better for this process indirect proportion as its increased iodine content.
- the process may be modified by spraying the oil upon the press-formed pieces, or by effecting an incorporation through a daubing co operation; in either case, the absorptionability of the pieces can be enhanced'if the oils are applied with 'athin fluid vehicle like benzine oremulsions.
- This method of impregnation of the articles is less exact than ea.
Landscapes
- Powder Metallurgy (AREA)
Description
, $0 scribed process for example,soja
rnocnss son Paonucme sm'rnnun ore" f .me Drawing. Application filed December 4, 1930,:Seria1 No. 499,980, and in Germany January 4:, 1830,
or drilling in order to produce their .final' form prior to becoming sintered. In most 16 cases the compression is of itself inadequate to attainthe required mechanical cohesion'. Consequently, such articles have hitherto been seed oil, pitch Japanese wood oil, 1, andothers.
' The varnishderivatives of such" oils are also capable of application with'especial adpresintered, which is to 'say preheated to aboutared glow. v 15 That method of enhancing cohesion 'is cumbersome and requiresspecial furnaces. Moreover it has the drawback attending the fact that most of themetals or'their metaliform combinations like the carbides, nitrides 2 and others react more or less with the furnace gases while 'so glowing and can 'sufier changes leastways superficially in their structure.
According uniform distribution occurs, the accomplish ment of which is favored if the metal pow- 35 ders are not entirely dry, instead, manifest a moisture of. about one to two per cent.
After pressing the articles, atmospheric oxygen causes an oxidation and polymerization of the unsatiated'acids whereupon they s'tifien completely-in a few hours. The oxi '-,dation can be curtailed an hour by conducting warmed air of about oneto two hundred degrees to the pieces. Thereafter the articles 45 are so hard and edge sec'ure that one may,
subject [them to every requiredoperation without danger of fracture.
A large number of oils containing ated acids are available foruseinthis de to the present invention, the 3 articles are strengthened after com ression Such oils which contain 'the addition of the oils vantage; generally an oil is better for this process indirect proportion as its increased iodine content.
The process may be modified by spraying the oil upon the press-formed pieces, or by effecting an incorporation through a daubing co operation; in either case, the absorptionability of the pieces can be enhanced'if the oils are applied with 'athin fluid vehicle like benzine oremulsions. This method of impregnation of the articles is less exact than ea.
before pressing. -Iclaim: 1. The process for producing sintered I bodies of powdered metals, comprising, uniformly impregnating a slightly .moistened 7o powdered metallic aggre ate with a vegetable oil containing unsatiat'e fatty acids, forming the aggregate :by pressing whileat a'tmospheric; temperature, allowingit to stiffen .byxatmospheric exposure'whereby to increase as the cohesiveness of the formed body and then sintering,
2. The process for producing sintered' v bodies of powdered metals, com risin the homogeneous mixing of a vegetab ing fattyacid and iodine content with ow-- dered metals, forming the mixture'by pressing into a-body of desired shape, allowing oxidation and polymerization to occur in the 1 presence of warmed air and subsequently 9e sintermg.
Signed this 3 1stday ofOctober 1930. RICHARD-1t. wilnrnn.
le oi havm
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1856607X | 1930-01-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1856607A true US1856607A (en) | 1932-05-03 |
Family
ID=7746256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US499980A Expired - Lifetime US1856607A (en) | 1930-01-04 | 1930-12-04 | Process for producing sintered alloys |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1856607A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1084104B (en) * | 1952-09-19 | 1960-06-23 | Carlfors Bruk E Bjoerklund & C | Process for inactivating an oxidizable metal powder for explosives and pyrotechnic purposes |
| DE974366C (en) * | 1939-11-04 | 1960-12-01 | Aeg | Method and device for producing hard metal compacts to be sintered from a powder mixture |
| DE1114329B (en) * | 1954-01-13 | 1961-09-28 | Deutsche Edelstahlwerke Ag | Process for the production of metallic, porous sintered sheets, molded parts u. like |
-
1930
- 1930-12-04 US US499980A patent/US1856607A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE974366C (en) * | 1939-11-04 | 1960-12-01 | Aeg | Method and device for producing hard metal compacts to be sintered from a powder mixture |
| DE1084104B (en) * | 1952-09-19 | 1960-06-23 | Carlfors Bruk E Bjoerklund & C | Process for inactivating an oxidizable metal powder for explosives and pyrotechnic purposes |
| DE1114329B (en) * | 1954-01-13 | 1961-09-28 | Deutsche Edelstahlwerke Ag | Process for the production of metallic, porous sintered sheets, molded parts u. like |
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