CN102652998A - Metallurgy powder composition - Google Patents
Metallurgy powder composition Download PDFInfo
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- CN102652998A CN102652998A CN2012100700743A CN201210070074A CN102652998A CN 102652998 A CN102652998 A CN 102652998A CN 2012100700743 A CN2012100700743 A CN 2012100700743A CN 201210070074 A CN201210070074 A CN 201210070074A CN 102652998 A CN102652998 A CN 102652998A
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Abstract
The invention relates to a metallurgy powder composition, comprising the following materials by weight: 45-90% of iron-based matrix powder, 0.1-3% of adhesive, 0.001-0.5% of flowable agent and 5-25% of hard-phase powder. The adhesive is at least one or two of zinc stearate, calcium stearate and stearic acid amide. The flowable agent improved particle contains carbon black which is 50-100% of the flowable agent improved particle by mass. The hard-phase powder contains elements of Fe, Cr, Co, Ni, W and C. The metallurgy powder composition provided by the invention has the advantages of excellent compressibility and fallibility, wide application range and low production cost.
Description
Technical field
The present invention relates to a kind of metallurgical industry powder, especially a kind of metallurgical powder composition.
Background technology
In industry, the application through compacting and the metal product processed of sintered iron base powder composition becomes more and more general.The quality requirement of these metal products improves constantly, and therefore, has developed the novel powder compositions with improvement performance.One of most important properties of final sintered products is density and dimensional tolerance, and they must be consistent.The problem of dimensional variations derives from the inhomogeneities in the mixture of powders that will suppress usually in the final products.
For the mixture of powders that comprises size, density and variform powdered components, these problems are especially remarkable, and this is the reason that appearance separates in transportation, storage and the processing procedure at powder composition.This separation means that the formation of said composition is inhomogeneous, and this means that again therefore parts difference on constituting of being processed by this powder composition also has heterogeneity.Another problem is a particulate, particularly more low-density particulate, and for example graphite has caused dirt in the mixture of powders processing procedure.The small grain size of additive also causes the relevant problem of flowing property (being the ability that powder shows as free flowing powder) with powder.Impaired flowability was presented as with time of powder loading mould cavity increases the high risk that this means lower productivity ratio and pressed part variations in density, and this possibly cause unacceptable deformation behind the sintering.In addition, in order from die head, to release pressed part, make the minimise wear of die surfaces and to obtain to have the parts that do not have the excellent surface facing that scratches, from die head, releasing the required power of parts must be low.
Summary of the invention
In order to overcome above defective, the technical problem that the present invention will solve is: propose a kind of have good compressibility and fillibility, the scope of application is wide, the metallurgical powder composition that production cost is low.
The technical scheme that the present invention adopted is: a kind of metallurgical powder composition; Comprise following raw material by weight percentage: iron-based substrates powder 45-90%, adhesive 0.1-3%, flowable 0.001-0.5% and hard be powder 5-25% mutually; Said adhesive is one or more in zinc stearate, calcium stearate and the stearic amide; Said flowable improves particle and contains with respect to flowability and improve the hydrocarbon black powder that particle is the 50-100% quality, and said hard phase powder comprises following each element of Fe, Cr, Co, Ni, W, C.
According to another preferred embodiment, comprise that further said flowability improves particle except that also having said carbon black, also contain PMMA powder and/or PE powder, and the average grain diameter that said flowability is improved particle is between 4-550mm.
According to another preferred embodiment, comprise that further said hard phase powder also comprises V, Ni, Ti, Cu.
According to another preferred embodiment, comprise that further said iron-based substrates powder is a high chrome, said high chrome has 15-25%Cr, 5-18%Ni, and 0.1-6%Mo, 0-3%C, all the other are Fe.
According to another preferred embodiment, comprise that further the part surface of said irony matrix powder is attached with adhesive, be attached with said flowability at least a portion surface of said adhesive and improve particle.
According to another preferred embodiment, comprise that further said metallurgical powder composition also comprises kollag.
The invention has the beneficial effects as follows: have good compressibility and fillibility, the scope of application is wide, and production cost is low.
The specific embodiment
In conjunction with the preferred embodiments the present invention is done further detailed explanation now.Basic structure of the present invention only is described in a schematic way, so it only shows the formation relevant with the present invention.
A kind of metallurgical powder composition; Comprise following raw material by weight percentage: iron-based substrates powder 85%, adhesive 1%, flowable 0.5% and hard be powder 23.5% mutually; Said adhesive is one or more in zinc stearate, calcium stearate and the stearic amide; Said flowable improves particle and contains with respect to flowability and improve the hydrocarbon black powder that particle is 80 quality %, and said hard phase powder comprises following each element of Fe, Cr, Co, Ni, W, C.
In addition; Said flowability is improved particle except that also having said carbon black; Also contain PMMA powder and/or PE powder; And said flowability is improved the average grain diameter of particle between 4-550mm, adds the mobile flowability that particle can lack metal dust of improving, and quickens the quality of chemical reaction and product.
In addition, said hard phase powder also comprises V, Ni, Ti, Cu.
In addition, said iron-based substrates powder is a high chrome, and said high chrome has 20%Cr, 15%Ni, and 5%Mo, 3%C, all the other are Fe.
In addition, the part surface of said irony matrix powder is attached with adhesive, is attached with said flowability at least a portion surface of said adhesive and improves particle.
In addition, said metallurgical powder composition also comprises kollag, and the profit curing agent can be used as free nodular powder existence or is bonded on the surface of iron-based powder, can effectively improve the compression performance of powder.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification, must confirm its technical scope according to the claim scope.
Claims (6)
1. metallurgical powder composition; It is characterized in that: comprise following raw material by weight percentage: iron-based substrates powder 45-90%, adhesive 0.1-3%, flowable 0.001-0.5% and hard be powder 5-25% mutually; Said adhesive is one or more in zinc stearate, calcium stearate and the stearic amide; Said flowable improves particle and contains with respect to flowability and improve the hydrocarbon black powder that particle is the 50-100% quality, and said hard phase powder comprises following each element of Fe, Cr, Co, Ni, W, C.
2. a kind of metallurgical powder composition according to claim 1; It is characterized in that: said flowability is improved particle except that also having said carbon black; Also contain PMMA powder and/or PE powder, and the average grain diameter that said flowability is improved particle is between 4-550mm.
3. a kind of metallurgical powder composition according to claim 1 is characterized in that: said hard phase powder also comprises V, Ni, Ti, Cu.
4. a kind of metallurgical powder composition according to claim 1 is characterized in that: said iron-based substrates powder is a high chrome, and said high chrome has 15-25%Cr, 5-18%Ni, and 0.1-6%Mo, 0-3%C, all the other are Fe.
5. a kind of metallurgical powder composition according to claim 1 is characterized in that: the part surface of said irony matrix powder is attached with adhesive, is attached with said flowability at least a portion surface of said adhesive and improves particle.
6. a kind of metallurgical powder composition according to claim 1 is characterized in that: said metallurgical powder composition also comprises kollag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100700743A CN102652998A (en) | 2012-03-16 | 2012-03-16 | Metallurgy powder composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100700743A CN102652998A (en) | 2012-03-16 | 2012-03-16 | Metallurgy powder composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102652998A true CN102652998A (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2012100700743A Pending CN102652998A (en) | 2012-03-16 | 2012-03-16 | Metallurgy powder composition |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008649A (en) * | 2013-01-07 | 2013-04-03 | 鞍钢重型机械有限责任公司 | Mixed powder for electric tool and preparation method thereof |
| CN103537667A (en) * | 2013-10-11 | 2014-01-29 | 芜湖市鸿坤汽车零部件有限公司 | Powder metallurgy engine oil delivery pump rotor and manufacturing method thereof |
| CN103736989A (en) * | 2014-01-15 | 2014-04-23 | 涂秀琼 | Iron-based powder metallurgical combination and preparation method thereof |
| CN104870125A (en) * | 2012-12-28 | 2015-08-26 | 杰富意钢铁株式会社 | Iron-based powder for powder metallurgy |
-
2012
- 2012-03-16 CN CN2012100700743A patent/CN102652998A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104870125A (en) * | 2012-12-28 | 2015-08-26 | 杰富意钢铁株式会社 | Iron-based powder for powder metallurgy |
| US9352393B2 (en) | 2012-12-28 | 2016-05-31 | Jfe Steel Corporation | Iron-based powder for powder metallurgy |
| CN104870125B (en) * | 2012-12-28 | 2017-04-26 | 杰富意钢铁株式会社 | Iron-based powder for powder metallurgy |
| CN103008649A (en) * | 2013-01-07 | 2013-04-03 | 鞍钢重型机械有限责任公司 | Mixed powder for electric tool and preparation method thereof |
| CN103008649B (en) * | 2013-01-07 | 2014-05-07 | 鞍钢重型机械有限责任公司 | Mixed powder for electric tool and preparation method thereof |
| CN103537667A (en) * | 2013-10-11 | 2014-01-29 | 芜湖市鸿坤汽车零部件有限公司 | Powder metallurgy engine oil delivery pump rotor and manufacturing method thereof |
| CN103736989A (en) * | 2014-01-15 | 2014-04-23 | 涂秀琼 | Iron-based powder metallurgical combination and preparation method thereof |
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Application publication date: 20120905 |