CN106270494A - Nonmagnetic steel goods and powder metallurgically manufacturing method thereof - Google Patents
Nonmagnetic steel goods and powder metallurgically manufacturing method thereof Download PDFInfo
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- CN106270494A CN106270494A CN201610858968.7A CN201610858968A CN106270494A CN 106270494 A CN106270494 A CN 106270494A CN 201610858968 A CN201610858968 A CN 201610858968A CN 106270494 A CN106270494 A CN 106270494A
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- 239000000843 powder Substances 0.000 title claims abstract description 126
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 46
- 239000010959 steel Substances 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 14
- 239000000956 alloy Substances 0.000 claims abstract description 14
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 14
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 13
- 239000011230 binding agent Substances 0.000 claims abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 6
- 229910002551 Fe-Mn Inorganic materials 0.000 claims description 30
- 239000011572 manganese Substances 0.000 claims description 15
- 238000005245 sintering Methods 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 229910052759 nickel Inorganic materials 0.000 claims description 11
- 229910052804 chromium Inorganic materials 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 229910000926 A-3 tool steel Inorganic materials 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical group [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 238000009692 water atomization Methods 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 claims description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 20
- 239000010949 copper Substances 0.000 description 14
- 239000011812 mixed powder Substances 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 4
- 238000005242 forging Methods 0.000 description 4
- 238000005495 investment casting Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- HQYUWCXFCCIKPT-UHFFFAOYSA-J dizinc octadecanoate Chemical compound [Zn++].[Zn++].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQYUWCXFCCIKPT-UHFFFAOYSA-J 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 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
- 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
-
- 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
- B22F3/02—Compacting only
-
- 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
-
- 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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention relates to a kind of nonmagnetic steel goods and powder metallurgically manufacturing method thereof.This powder metallurgically manufacturing method comprises the steps: prepared by Fe Mn prealloy powder: this Fe Mn prealloy powder includes the composition of following percentage by weight: Mn 20～50%, C 0.2～0.6%, Si 0.5～1.2%, S≤0.05%, P≤0.1%, O≤1.15%, and surplus is Fe；In described Fe Mn prealloy powder, add other alloy powder and binding agent, mix aftershaping, obtain green compact；Described green compact are sintered, obtain described nonmagnetic steel goods.The nonmagnetic steel product size that the method prepares is stable, density is high, obdurability is good, and manufacture method is simple, low cost of manufacture.
Description
Technical field
The present invention relates to powder metallurgical technology, particularly relate to a kind of nonmagnetic steel goods and powder metallurgically manufacturing side thereof
Method.
Background technology
The purposes of nonmagnetic steel is widely, at automatic control system, precision instrument, telecommunication and motor and many military
Field is required for use nonmagnetic steel.As along with the development of refrigeration industry, the demand of compressor is increasing, putting down in compressor
Weighing apparatus block effect is great, and it maintains the bent axle plateau when high speed rotating.Material used by balance weight is from the high copper of cost
Lower-cost potassium steel iron-based gradually used instead by base, and material is required to not carrying magnetic or be not magnetized.
At present, hot investment casting or Forging Technology is mainly used to prepare such as the nonmagnetic steel goods of balance weight etc..And hot investment casting
Or the production cycle of forging is longer, relatively costly, simultaneously because the size of equipment constantly diminishes, the size of nonmagnetic steel goods also exists
Reduce, be not suitable for producing with hot investment casting or forging.Therefore tradition hot investment casting or Forging Technology is used to be increasingly difficult to full
The demand in foot market.
Existing powder metallurgically manufacturing nonmagnetic steel technique, owing to the intensity of Fe-Mn alloyed powder is high, and has strong processing
The characteristic of hardening, causes powder briquettability and formability poor, and green strength is low, makes the density of sintered metal product and obdurability relatively
Difference, and the most compressing according to element powder Mn powder and Fe powder, produce bigger steam owing to distilling during Mn high temperature during sintering
Pressure, material alloysization difficulty, do not reach the requirement of nonmagnetic, high density and obdurability.
Based on this, part prior art is to improve the density of powder stampings, adds WC element powder in Fe-Mn alloyed powder
End is suppressed, and improves green density with the high specific gravity of WC element powders, but owing to WC plasticity difference is difficult to compressing, because of
This need to use high velocity compacted just can be able to molding, and this method pressing process is relatively costly.
Summary of the invention
Based on this, it is necessary to provide that a kind of high density, obdurability are good, method is simple, the nonmagnetic steel goods of low cost of manufacture
Powder metallurgically manufacturing method.
A kind of powder metallurgically manufacturing method of nonmagnetic steel goods, comprises the steps:
Prepared by Fe-Mn prealloy powder: this Fe-Mn prealloy includes the composition of following percentage by weight: Mn 20～50%, C
0.2～0.6%, Si 0.5～1.2%, S≤0.05%, P≤0.1%, O≤1.15%, surplus is Fe；
In described Fe-Mn prealloy powder, add Cu powder, Cr powder, Ni powder, P powder and Fe powder, obtain alloy powder；Then at described
Alloy powder adds binding agent, compressing after mixing, obtain green compact；Wherein, described alloy powder by weight percentage,
Including Fe-Mn prealloy powder 60～90%, Cu powder 10～25%, Cr powder 0～5%, Ni powder 0～5%, P powder 0～2% and Fe powder 0
～30%；
Described green compact are sintered, obtain described nonmagnetic steel goods.
Above-mentioned alloy powder is preferably, by weight percentage, including described Fe-Mn prealloy powder 60～80%, Cu powder
15～25%, Cr powder 1～5%, Ni powder 1～5%, P powder 1～2% and Fe powder 2～4%.
Wherein in an embodiment, the particle size distribution of described Fe-Mn prealloy powder is 80～300 mesh.This particle size distribution
The particle size distribution of the Fe-Mn prealloy powder under sieving after referring to sieve.
Wherein in an embodiment, after described Fe-Mn prealloy is by the smelting mixing of A3 steel, graphite and electrolytic manganese, adopt
It is prepared from water atomization.
A3 steel refers to the steel that standard chemical composition is Fe and C, and A3 is steel mark, and 3 refer to its phosphorus content 0.003%.
Wherein in an embodiment, described nonmagnetic steel goods include the composition of following percentage by weight: Mn 16～
30%, Cu 10～25%, C 0.12～0.6%, Si 0.5～1.2%, S≤0.1%, Cr≤5%, Ni≤5%, P≤2%,
Surplus is Fe.
Wherein in an embodiment, described green density is 5.8～6.4g/cm3。
Wherein in an embodiment, the temperature of described sintering is 1150 DEG C～1200 DEG C, the time 1～2h.
Wherein in an embodiment, the addition of described binding agent is the 0.6～1.0% of described alloy powder weight.
Wherein in an embodiment, described binding agent is zinc stearate.
Wherein in an embodiment, described nonmagnetic steel goods are balance weight.
The present invention also provides for the nonmagnetic steel goods that the powder metallurgically manufacturing method manufacture of described nonmagnetic steel goods obtains.
Compared with prior art, the method have the advantages that
The invention discloses a kind of powder metallurgically manufacturing method of nonmagnetic steel goods.The method uses the compound side joining powder
Method, the most first prepares Fe-Mn prealloy powder, then it is (further to add Fe powder, Cu powder in Fe-Mn prealloy powder further
Add P powder, Ni powder, Cr powder) etc. element powder to prepare alloy powder, and in reasonable disposition alloy powder Fe-Mn prealloy powder with
The composition of element powder, owing to element powder has preferable briquettability and formability, mixes Fe-Mn prealloy powder and element powder
After, it is possible to effectively solving prealloy Fe-Mn powder compressibility and the problem of formability difference, gained alloy powder compressibility is good, uses
Standard machinery press can be compressing, and the nonmagnetic steel product size prepared is stable, density can reach 7.3～7.5g/cm3, anti-
Tensile strength reaches 380～480MPa, and percentage elongation is up to 3～5%.
Compared with prior art, the powder metallurgically manufacturing method not only nonmagnetic steel product properties of the nonmagnetic steel goods of the present invention
Height, and technique is simple, low cost, can be used for the occasion high to mechanical property requirements, significantly extends existing nonmagnetic steel goods
Industrial applications scope.
Additionally, the technological parameter of each step of conservative control, it is possible to it is further ensured that the Optimality of prepared nonmagnetic steel goods
Energy.
Detailed description of the invention
Below in conjunction with specific embodiment, nonmagnetic steel goods and the powder metallurgically manufacturing method thereof of the present invention are made the most in detail
Thin explanation.
The particle size distribution of the Fe-Mn prealloy powder that the present invention uses is 80～300 mesh, and preparation method is as follows:
According to required Fe-Mn prealloy powder composition, after according to a certain ratio A3 steel is placed in intermediate frequency furnace intensification fusing, add
Enter electrolytic manganese and graphite；After melting down, use ferrosilicon deoxidation, use water atomization to prepare Fe-Mn prealloy powder.
Embodiment 1
The powder metallurgically manufacturing method of the present embodiment one nonmagnetic steel goods (balance weight), comprises the steps:
A) first, it is Fe-Mn prealloy powder 60%, Cu powder 25%, Cr powder 5%, Ni powder 5%, P powder by weight percentage
1%, remaining as Fe powder, prepare mixed-powder, add the zinc stearate (binding agent) of this mixed-powder gross weight 0.6%, use
Mixed powder machine stirs standby；
Wherein, Fe-Mn prealloy powder include the composition of following percentage by weight: Mn 50%, C 0.2%, Si 1%, S≤
0.05%, P≤0.1%, O≤1.15%, surplus is Fe.
B) sending standard machinery press compressing mixed mixed-powder, prepare the green compact of balance weight, density domination exists
6.4g/cm3。
C) being sintered in pushing away boat stove by the green compact of compacting, its sintering temperature is 1150 DEG C～1200 DEG C, sintering time
1.5h。
D) green compact after sintering are polished deburring to process, gained balance weight includes following percentage by weight
Composition: Mn 30%, Cu 25%, C 0.12%, Si 0.6%, S≤0.1%, Cr 5%, Ni 5%, P 1%, surplus is
Fe。
Embodiment 2
The powder metallurgically manufacturing method of the present embodiment one nonmagnetic steel goods (balance weight), comprises the steps:
A) first, the prealloy powder of Fe-Mn by weight percentage 80%, Cu powder 15%, Cr powder 1%, Ni powder 1%, P powder 1%,
Remaining as Fe powder, prepare mixed-powder, add the zinc stearate (binding agent) of this mixed-powder gross weight 0.8%, with mixed powder
Machine stirs standby；
Wherein, Fe-Mn prealloy powder includes the composition of following percentage by weight: Mn 30%, C 0.3%, Si 0.8%, S
≤ 0.05%, P≤0.1%, O≤1.15%, surplus is Fe.
B) sending standard machinery press compressing mixed mixed-powder, prepare the green compact of balance weight, density domination exists
6.0g/cm3。
C) being sintered in pushing away boat stove by the green compact of compacting, its sintering temperature is 1150 DEG C～1200 DEG C, sintering time
1.5h。
D) green compact after sintering are polished deburring to process, gained balance weight includes following percentage by weight
Composition: Mn 24%, Cu 15%, C 0.24%, Si 0.64%, S≤0.1%, Cr1%, Ni 1%, P 1%, surplus is
Fe。
Embodiment 3
The powder metallurgically manufacturing method of the present embodiment one nonmagnetic steel goods (balance weight), comprises the steps:
A) first, the prealloy powder of Fe-Mn by weight percentage 90%, Cu powder 10%, prepare mixed-powder, add this and mix
Close the zinc stearate zinc (binding agent) of powder gross weight 1.0%, stir standby with mixed powder machine；
Wherein, Fe-Mn prealloy powder includes the composition of following percentage by weight: Mn 20%, C 0.6%, Si 0.6%, S
≤ 0.05%, P≤0.1%, O≤1.15%, surplus is Fe.
B) sending standard machinery press compressing mixed mixed-powder, prepare the green compact of balance weight, density domination exists
5.8g/cm3。
C) being sintered in pushing away boat stove by the green compact of compacting, its sintering temperature is 1150 DEG C～1200 DEG C, sintering time
1.5h。
D) green compact after sintering are polished deburring to process, gained balance weight includes following percentage by weight
Composition: Mn 18%, Cu 10%, C 0.54%, Si 0.54%, S≤0.1%, surplus is Fe.
Comparative example
The powder metallurgically manufacturing method of this comparative example one nonmagnetic steel goods (balance weight), comprises the steps:
A) first, according to Mn 20%, Cu 15%, C 0.5%, Si 1%, S≤0.5%, Cr 2%, Ni 2%, P
1%, surplus is Fe, prepares mixed-powder, stirs standby with mixed powder machine.
B) sending standard machinery press compressing mixed alloy powder, prepare the green compact of balance weight, density domination exists
6.2g/cm3。
C) being sintered in pushing away boat stove by the green compact of compacting, its sintering temperature is 1150 DEG C～1200 DEG C, sintering time
1.5h。
D) green compact after sintering are polished deburring to process, gained balance weight includes following percentage by weight
Composition: Mn 20%, Cu 15%, C 0.5%, Si 1%, S≤0.5%, Cr 2%, Ni 2%, P 1%, surplus is Fe.
The performance test results of embodiment 1-3 and comparative example is as shown in table 1.
Table 1
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, not to above-mentioned reality
The all possible combination of each technical characteristic executed in example is all described, but, as long as the combination of these technical characteristics is not deposited
In contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but also
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that, come for those of ordinary skill in the art
Saying, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. the powder metallurgically manufacturing method of nonmagnetic steel goods, it is characterised in that comprise the steps:
Prepared by Fe-Mn prealloy powder: this Fe-Mn prealloy powder includes the composition of following percentage by weight: Mn 20～50%, C
0.2～0.6%, Si 0.5～1.2%, S≤0.05%, P≤0.1%, O≤1.15%, surplus is Fe；
In described Fe-Mn prealloy powder, add Cu powder, Cr powder, Ni powder, P powder and Fe powder, obtain alloy powder；Then at described alloy
Powder adds binding agent, compressing after mixing, obtain green compact；Wherein, described alloy powder by weight percentage, including
Fe-Mn prealloy powder 60～90%, Cu powder 10～25%, Cr powder 0～5%, Ni powder 0～5%, P powder 0～2% and Fe powder 0～
30%；
Described green compact are sintered, obtain described nonmagnetic steel goods.
The powder metallurgically manufacturing method of nonmagnetic steel goods the most according to claim 1, it is characterised in that described Fe-Mn is pre-
The particle size distribution of alloyed powder is 80～300 mesh.
The powder metallurgically manufacturing method of nonmagnetic steel goods the most according to claim 1, it is characterised in that described Fe-Mn is pre-
After alloyed powder is by the smelting mixing of A3 steel, graphite and electrolytic manganese, water atomization is used to be prepared from.
The powder metallurgically manufacturing method of nonmagnetic steel goods the most according to claim 1, it is characterised in that described nonmagnetic steel system
Product include the composition of following percentage by weight: Mn 16～30%, Cu 10～25%, C 0.12～0.6%, Si 0.5～
1.2%, S≤0.1%, Cr≤5%, Ni≤5%, P≤2%, surplus is Fe.
The powder metallurgically manufacturing method of nonmagnetic steel goods the most according to claim 1, it is characterised in that described green density
It is 5.8～6.4g/cm3。
The powder metallurgically manufacturing method of nonmagnetic steel goods the most according to claim 1, it is characterised in that the temperature of described sintering
Degree is 1150 DEG C～1200 DEG C, the time 1～2h.
7. according to the powder metallurgically manufacturing method of the nonmagnetic steel goods described in any one of claim 1-6, it is characterised in that described
The addition of binding agent is the 0.6～1% of described alloy powder weight.
The powder metallurgically manufacturing method of nonmagnetic steel goods the most according to claim 7, it is characterised in that described binding agent is
Zinc stearate.
9. according to the powder metallurgically manufacturing method of the nonmagnetic steel goods described in any one of claim 1-6, it is characterised in that described
Nonmagnetic steel goods are balance weight.
10. the nonmagnetic steel system that the powder metallurgically manufacturing method manufacture of the nonmagnetic steel goods described in any one of claim 1-9 obtains
Product.
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| CN201610858968.7A CN106270494B (en) | 2016-09-26 | 2016-09-26 | Nonmagnetic steel product and its powder metallurgically manufacturing method |
| PCT/CN2016/108279 WO2018053940A1 (en) | 2016-09-26 | 2016-12-01 | Non-magnetic steel product and powder metallurgy manufacturing method therefor |
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| CN201610858968.7A CN106270494B (en) | 2016-09-26 | 2016-09-26 | Nonmagnetic steel product and its powder metallurgically manufacturing method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107034420A (en) * | 2017-06-21 | 2017-08-11 | 广东粤海华金科技股份有限公司 | Nonmagnetic steel product and its manufacture method |
| CN108580911A (en) * | 2018-05-02 | 2018-09-28 | 莱芜钢铁集团粉末冶金有限公司 | A kind of preparation method of high manganese nonmagnetic steel powder |
| CN108677098A (en) * | 2018-04-16 | 2018-10-19 | 华南理工大学 | A kind of low nickel and high manganese austenitic nonmagnetic steel and preparation method thereof |
| CN108866452A (en) * | 2017-05-15 | 2018-11-23 | 丰田自动车株式会社 | The manufacturing method of sintering forging component |
| CN109811274A (en) * | 2019-02-27 | 2019-05-28 | 江门市阳浩金属制品有限公司 | A kind of nonmagnetic steel and preparation method thereof |
| CN110000389A (en) * | 2019-03-14 | 2019-07-12 | 全亿大科技（佛山）有限公司 | The preparation method of stainless steel |
| CN110756814A (en) * | 2018-07-26 | 2020-02-07 | 广东美芝制冷设备有限公司 | Preparation method of copper-free metallurgical material, balance block and compressor |
| CN111468711A (en) * | 2019-01-23 | 2020-07-31 | 广东粤海华金科技股份有限公司 | Composite activation sintered non-magnetic steel material and manufacturing method thereof |
| CN115125429A (en) * | 2021-03-25 | 2022-09-30 | 华南理工大学 | Activated sintered high-manganese non-magnetic steel and preparation method thereof |
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| CN108866452A (en) * | 2017-05-15 | 2018-11-23 | 丰田自动车株式会社 | The manufacturing method of sintering forging component |
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| CN108580911B (en) * | 2018-05-02 | 2021-04-20 | 山东鲁银新材料科技有限公司 | Preparation method of high-manganese non-magnetic steel powder |
| CN110756814A (en) * | 2018-07-26 | 2020-02-07 | 广东美芝制冷设备有限公司 | Preparation method of copper-free metallurgical material, balance block and compressor |
| CN110756814B (en) * | 2018-07-26 | 2022-08-05 | 广东美芝制冷设备有限公司 | Preparation method of copper-free metallurgical material, balance block and compressor |
| CN111468711A (en) * | 2019-01-23 | 2020-07-31 | 广东粤海华金科技股份有限公司 | Composite activation sintered non-magnetic steel material and manufacturing method thereof |
| CN109811274A (en) * | 2019-02-27 | 2019-05-28 | 江门市阳浩金属制品有限公司 | A kind of nonmagnetic steel and preparation method thereof |
| CN110000389A (en) * | 2019-03-14 | 2019-07-12 | 全亿大科技（佛山）有限公司 | The preparation method of stainless steel |
| CN115125429A (en) * | 2021-03-25 | 2022-09-30 | 华南理工大学 | Activated sintered high-manganese non-magnetic steel and preparation method thereof |
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| WO2018053940A1 (en) | 2018-03-29 |
| CN106270494B (en) | 2019-01-15 |
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