CN106077654A - A kind of method preparing powdered metallurgical material - Google Patents
A kind of method preparing powdered metallurgical material Download PDFInfo
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- CN106077654A CN106077654A CN201610606630.2A CN201610606630A CN106077654A CN 106077654 A CN106077654 A CN 106077654A CN 201610606630 A CN201610606630 A CN 201610606630A CN 106077654 A CN106077654 A CN 106077654A
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- Prior art keywords
- powder
- metallurgical material
- powdered metallurgical
- method preparing
- temperature
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- 239000000463 material Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 29
- 238000005245 sintering Methods 0.000 claims abstract description 26
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000956 alloy Substances 0.000 claims abstract description 13
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000011521 glass Substances 0.000 claims abstract description 7
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 7
- 239000010439 graphite Substances 0.000 claims abstract description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 14
- 230000032683 aging Effects 0.000 claims description 13
- 229910052802 copper Inorganic materials 0.000 claims description 13
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 238000003723 Smelting Methods 0.000 claims description 4
- 239000006104 solid solution Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000010298 pulverizing process Methods 0.000 abstract 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment 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
- 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
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
-
- B22F1/0003—
-
- 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
- B22F3/24—After-treatment of workpieces or articles
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0425—Copper-based alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
-
- 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
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F2003/145—Both compacting and sintering simultaneously by warm compacting, below debindering temperature
-
- 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
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/248—Thermal after-treatment
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
Abstract
The present invention relates to a kind of method preparing powdered metallurgical material, it includes pulverizing copper powder, nikel powder and glass putty respectively；Mix homogeneously in batch mixer, obtains alloyed powder again；Above-mentioned alloyed powder is placed in graphite jig and carries out hot pressed sintering, sintered rear mould unloading, obtain cuprum-nickel-stannum powdered metallurgical material；Again above-mentioned powdered metallurgical material is carried out heat treatment.The copper powder of mix homogeneously, nikel powder and glass putty are pulverized and mixed rear by hot pressed sintering by the present invention, on the one hand can be that the alloy of preparation obtains uniform performance offer basis, on the other hand make to be tightly combined between powder；And sinter and obtain alloy and pass through Technology for Heating Processing, then it is greatly improved intensity and the hardness of powdered metallurgical material.
Description
Technical field
The present invention relates to copper-based alloy material, the method specifically preparing powdered metallurgical material.
Background technology
Copper and copper alloy are to apply one of metal material the earliest, be widely used in machine-building, transport, build, electrically,
The industrial departments such as electronics；Wherein electric and electronic industry amount of copper consuming is relatively big, mainly for the manufacture of electric wire, communication cable etc..Copper and copper
Alloy is the most nonmagnetic, has good solderable performance, polishing performance and surface treatment properties etc..And in copper, mix nickel can show
Write and improve corrosion resistance, intensity, hardness, resistance, and reduce temperature coefficient of resistivity.
PM technique is to make through shaping and sintering with non-metal powder compound with metal dust or metal dust
Taking metal material, composite and the technology of all kinds goods, it is a kind of chipless or the processing method of few chip, gold
Belong to utilization rate and nearly reach 100%, there is productivity ratio height, stock utilization advantages of higher.And copper based powder metallurgy material is owing to holding
Loading capability, anticorrosive and antiwear property are relatively strong, are used for preparing lock body, camera shutter mechanism, gear, cam etc..But it is existing
There is the copper-based material hardness and insufficient strength utilizing PM technique to prepare, affect the serviceability of material.
Summary of the invention
For above-mentioned technical problem, the present invention provides a kind of and prepares the powdered metallurgical material that hardness is relatively big, intensity is higher
Method.
The technical solution used in the present invention is: a kind of method preparing powdered metallurgical material, and it comprises the following steps:
(1) copper powder, nikel powder and glass putty are pulverized respectively；
(2) mix homogeneously in batch mixer again, obtains alloyed powder；
(3) above-mentioned alloyed powder is placed in graphite jig carries out hot pressed sintering, sintered rear mould unloading, obtained cuprum-nickel-stannum powder smelting
Gold copper-base alloy；
(4) more above-mentioned powdered metallurgical material is carried out heat treatment.
As preferably, in copper powder, nikel powder and glass putty, the content of nickel is 10wt%, and the content of stannum is 12 wt %, surplus
For copper.
As preferably, during hot pressed sintering, first sinter 20 30s with the temperature of 280 320 DEG C, then with 500 600 DEG C
Temperature sinters 40 60s, then sinters 20 30s with 650 700 DEG C of temperature.
As preferably, heat treatment uses solid solution, cold pressing deformation and Ageing Treatment successively.
As preferably, the temperature of solution treatment is 650 700 DEG C, and the time is 10 12min.
As preferably, the deflection of colding pressing of deformation process of colding pressing is 30 35%.
As preferably, the temperature of Ageing Treatment is 300 350 DEG C, and the time is 2 3h.
As can be known from the above technical solutions, lead to after the copper powder of mix homogeneously, nikel powder and glass putty are pulverized and mixed uniformly by the present invention
Cross hot pressed sintering, on the one hand can be that the alloy of preparation obtains uniform performance offer basis, on the other hand make to tie between powder
Close closely；And sinter and obtain alloy and pass through Technology for Heating Processing, then it is greatly improved intensity and the hardness of powdered metallurgical material.
Detailed description of the invention
The present invention is described more detail below, and illustrative examples and explanation in this present invention are used for explaining the present invention,
But it is not as a limitation of the invention.
A kind of method preparing powdered metallurgical material, it comprises the following steps:
With stannum, copper, nikel powder as raw material, and by the content of nickel be 10wt%, the content of stannum be 12 wt %, surplus be that copper is joined
Material, is then crushed to the granularity specified respectively by it；Mix homogeneously in batch mixer, obtains alloyed powder again；Then by above-mentioned conjunction
Bronze is placed in graphite jig and carries out hot pressed sintering, has sintered rear mould unloading, obtains cuprum-nickel-stannum powdered metallurgical material；Hot pressed sintering
Carry out in three stages, first sinter 20 30s with the temperature of 280 320 DEG C, then sinter 40 60s with 500 600 DEG C of temperature,
20 30s are sintered again with 650 700 DEG C of temperature；First stage belongs to the sintering preparatory stage, for sintering purification ring further
Border；Second stage, along with the rising of temperature, initially forms sintering neck, and be combined with each other between alloying substance granule, particle surface
Oxide generation reduction reaction, thus continue to participate in sintering, intergranular combination encloses space each other；3rd rank
The sintering temperature of section is higher, and intergranular sintering neck is grown up further, and more granule is merged, and sintered body obtains further
Contraction, nodularization, thus intensity and the hardness of material is prepared in raising.
Above-mentioned powdered metallurgical material is carried out heat treatment；Heat treatment uses solid solution, cold pressing deformation and Ageing Treatment successively；Gu
The temperature of molten process is 650 700 DEG C, and the time is 10 12min, so can control nickel, the stannum solid solubility in Copper substrate and
Grain size；Solid solubility temperature is too high, can cause coarse grains, reduces alloy strength；Solid solubility temperature is too low, though crystal grain is less, but
Follow-up Ageing Treatment can be caused to be difficult to play the effect of reinforced alloys.As preferably, the deflection of colding pressing of deformation process of colding pressing is
30—35%；Before Ageing Treatment, alloy is carried out cold deformation, alloy can be made to present the dual effect of working hardening and ageing strengthening
Really；The temperature of Ageing Treatment is 300 350 DEG C, and the time is 2 3h；Ageing Treatment can separate out the second phase, produces dispersion-strengtherning.
Embodiment 1
By the content of nickel be 10wt%, the content of stannum be 1 wt %, surplus be that copper carries out dispensing, be then crushed to it respectively refer to
Fixed granularity, then mix homogeneously in batch mixer, obtain alloyed powder；Alloyed powder is placed in graphite jig, first with the temperature of 280 DEG C
Degree sintering 30s, then with 500 DEG C of temperature sintering 60s, then with 650 DEG C of temperature sintering 30s；Subsequently with 650 DEG C of solution treatment
12min；Then colding pressing deformation process, deflection of colding pressing is 30%；Last with 300 DEG C of Ageing Treatment 3h, obtain cuprum-nickel-stannum powder smelting
Gold copper-base alloy.The hardness recording this material is 38.9HRC, and shear strength is 580.3MPa, and bulk density is 7.18g/cm3。
Embodiment 2
By the content of nickel be 10wt%, the content of stannum be 1.5 wt %, surplus be that copper carries out dispensing, then it is crushed to respectively
The granularity specified, then mix homogeneously in batch mixer, obtain alloyed powder；Alloyed powder is placed in graphite jig, first with 300 DEG C
Temperature sintering 25s, then with 560 DEG C of temperature sintering 50s, then with 680 DEG C of temperature sintering 25s；Subsequently with 680 DEG C of solution treatment
11min；Then colding pressing deformation process, deflection of colding pressing is 32%；Last with 330 DEG C of Ageing Treatment 2.5h, obtain cuprum-nickel-stannum powder
Metallurgical material.The hardness recording this material is 48.3HRC, and shear strength is 599.3MPa, and bulk density is 7.74g/cm3。
Embodiment 3
By the content of nickel be 10wt%, the content of stannum be 2 wt %, surplus be that copper carries out dispensing, be then crushed to it respectively refer to
Fixed granularity, then mix homogeneously in batch mixer, obtain alloyed powder；Alloyed powder is placed in graphite jig, first with the temperature of 320 DEG C
Degree sintering 20s, then with 600 DEG C of temperature sintering 40s, then with 700 DEG C of temperature sintering 20s；Subsequently with 700 DEG C of solution treatment
10min；Then colding pressing deformation process, deflection of colding pressing is 35%；Last with 350 DEG C of Ageing Treatment 2h, obtain cuprum-nickel-stannum powder smelting
Gold copper-base alloy.The hardness recording this material is 38.6HRC, and shear strength is 572.6MPa, and bulk density is 7.28g/cm3。
The technical scheme provided the embodiment of the present invention above is described in detail, specific case used herein
Principle and embodiment to the embodiment of the present invention are set forth, and the explanation of above example is only applicable to help to understand this
The principle of inventive embodiments；Simultaneously for one of ordinary skill in the art, according to the embodiment of the present invention, in specific embodiment party
All will change in formula and range of application, in sum, this specification content should not be construed as limitation of the present invention.
Claims (7)
1. the method preparing powdered metallurgical material, it comprises the following steps:
(1) copper powder, nikel powder and glass putty are pulverized respectively；
(2) mix homogeneously in batch mixer again, obtains alloyed powder；
(3) above-mentioned alloyed powder is placed in graphite jig carries out hot pressed sintering, sintered rear mould unloading, obtained cuprum-nickel-stannum powder smelting
Gold copper-base alloy；
(4) more above-mentioned powdered metallurgical material is carried out heat treatment.
The method preparing powdered metallurgical material the most according to claim 1, it is characterised in that: in copper powder, nikel powder and glass putty,
The content of nickel is 10wt%, and the content of stannum is 12 wt %, and surplus is copper.
The method preparing powdered metallurgical material the most as claimed in claim 1, it is characterised in that: during hot pressed sintering, first with 280
The temperature of 320 DEG C sinters 20 30s, then sinters 40 60s with 500 600 DEG C of temperature, then with 650 700 DEG C of temperature sintering
20—30s。
The method preparing powdered metallurgical material the most as claimed in claim 1, it is characterised in that: heat treatment uses solid solution, cold successively
Compressive strain and Ageing Treatment.
The method preparing powdered metallurgical material the most as claimed in claim 4, it is characterised in that: the temperature of solution treatment is 650
700 DEG C, the time is 10 12min.
The method preparing powdered metallurgical material the most as claimed in claim 4, it is characterised in that: the deformation of colding pressing of deformation process of colding pressing
Amount is 30 35%.
The method preparing powdered metallurgical material the most as claimed in claim 4, it is characterised in that: the temperature of Ageing Treatment is 300
350 DEG C, the time is 2 3h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610606630.2A CN106077654A (en) | 2016-07-29 | 2016-07-29 | A kind of method preparing powdered metallurgical material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610606630.2A CN106077654A (en) | 2016-07-29 | 2016-07-29 | A kind of method preparing powdered metallurgical material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106077654A true CN106077654A (en) | 2016-11-09 |
Family
ID=57478234
Family Applications (1)
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| CN201610606630.2A Pending CN106077654A (en) | 2016-07-29 | 2016-07-29 | A kind of method preparing powdered metallurgical material |
Country Status (1)
| Country | Link |
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| CN (1) | CN106077654A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108588456A (en) * | 2018-04-26 | 2018-09-28 | 哈尔滨工业大学深圳研究生院 | A kind of Cu-Sn intermetallic compounds skeleton phase-change material and preparation method thereof |
| CN114012095A (en) * | 2021-11-15 | 2022-02-08 | 上海东震冶金工程技术有限公司 | Transitional bonding material for flame cleaning burner enhanced life-prolonging process and application thereof |
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| CN114012095A (en) * | 2021-11-15 | 2022-02-08 | 上海东震冶金工程技术有限公司 | Transitional bonding material for flame cleaning burner enhanced life-prolonging process and application thereof |
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