CN104120361B - A kind of composite powder metallurgy material and preparation method thereof - Google Patents
A kind of composite powder metallurgy material and preparation method thereof Download PDFInfo
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- CN104120361B CN104120361B CN201410292093.XA CN201410292093A CN104120361B CN 104120361 B CN104120361 B CN 104120361B CN 201410292093 A CN201410292093 A CN 201410292093A CN 104120361 B CN104120361 B CN 104120361B
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- 239000000463 material Substances 0.000 title claims abstract description 21
- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 16
- 239000002131 composite material Substances 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title claims description 7
- 239000000843 powder Substances 0.000 claims abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000010936 titanium Substances 0.000 claims abstract description 13
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 9
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 4
- 239000010439 graphite Substances 0.000 claims abstract description 4
- 229910021341 titanium silicide Inorganic materials 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 9
- 238000005245 sintering Methods 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 235000002918 Fraxinus excelsior Nutrition 0.000 claims description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 6
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 6
- 239000002956 ash Substances 0.000 claims description 6
- 229910052923 celestite Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910052700 potassium Inorganic materials 0.000 claims description 6
- 239000011591 potassium Substances 0.000 claims description 6
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000010902 straw Substances 0.000 claims description 6
- UBXAKNTVXQMEAG-UHFFFAOYSA-L strontium sulfate Chemical compound [Sr+2].[O-]S([O-])(=O)=O UBXAKNTVXQMEAG-UHFFFAOYSA-L 0.000 claims description 6
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 6
- 239000011701 zinc Substances 0.000 claims description 6
- 238000000498 ball milling Methods 0.000 claims description 3
- 229910052790 beryllium Inorganic materials 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229940008099 dimethicone Drugs 0.000 claims description 3
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 3
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 3
- -1 epoxide Aluminate Chemical class 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 239000011572 manganese Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 abstract description 5
- 239000000956 alloy Substances 0.000 abstract description 5
- 229910052580 B4C Inorganic materials 0.000 abstract description 2
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 229910010271 silicon carbide Inorganic materials 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The invention discloses a kind of composite powder metallurgy material, it is characterized in that, be prepared by the raw materials in: titanium boride 0.3 0.5, graphite 0.7 0.9, titanium silicide 0.4 0.7, iron powder 83 85, Cu 4.1 4.4, Mn 3.3 3.5, Cr 13.5 14.7, Zn 2.1 2.8, Ti 2.8 3.4, Be 0.3 0.5, auxiliary agent 23；The present invention adds auxiliary agent, makes alloy powder be uniformly dispersed, it is ensured that the uniformity in length and breadth of interiors of products organizational structure, makes increase the fatigue life of product；The reaction between titanium valve, boron carbide, carborundum and alloy element powder, simple and fast, preparing of low cost is utilized to be distributed the composite element more uniform, reinforcement is combined more preferably, combination property is the most excellent with basal body interface.
Description
Technical field
The present invention relates to field of powder metallurgy, particularly a kind of composite powder metallurgy material and preparation method thereof.
Background technology
Powder metallurgy is to produce metal dust or with metal dust (or mixture of metal dust and non-metal powder) as raw material, through shaping and sintering, produces metal material, composite and the industrial technology of all kinds goods.At present, PM technique has been widely used in the fields such as traffic, machinery, electronics, Aero-Space, weapons, biology, new forms of energy, information and nuclear industry, becomes one of branch of most development vitality in new material science.PM technique possesses the series of advantages such as the most energy-conservation, province's material, excellent performance, Product Precision height and good stability, is very suitable for producing in enormous quantities.It addition, the material that cannot prepare of part conventional casting methods and machining process and complex parts also can use PM technique manufacture, thus enjoy the attention of industrial quarters.Powder metallurgy structural part product material composition is not limited by melting, both can add alloying component, it is also possible to adds other structural constituent, and is adjusted as requested in sizable scope, and then can reach the effect mated with steel part in mechanical property.
Powder metallurgy mechanization degree is high, can reduce personnel, can improve again efficiency, and then cost-effective.PM technique can replace traditional manufacturing process, cost-effective for the vast traditional forms of enterprises.
So studying the formula of the powder metallurgy of various component of machine, adapting to different needs, having great importance.
Summary of the invention
It is an object of the invention to provide a kind of composite powder metallurgy material and preparation method thereof, composite alloy powder distribution is uniform, excellent combination property.
In order to realize the purpose of the present invention, the present invention is implemented by below scheme:
A kind of composite powder metallurgy material, is prepared by the raw materials in: titanium boride 0.3-0.5, graphite 0.7-0.9, titanium silicide 0.4-0.7, iron powder 83-85, Cu 4.1-4.4, Mn 3.3-3.5, Cr 13.5-14.7, Zn 2.1-2.8, Ti 2.8-3.4, Be 0.3-0.5, auxiliary agent 2-3；
Described auxiliary agent is prepared by the raw materials in: iron powder 30-40, aluminum sulfate 3-4, PTPP (potassium tripolyphosphate) 1-2, celestite powder 2-3, straw ashes 1-2, Silane coupling agent KH550 1-2, dimethicone 3-4, isopropyl distearyl epoxide Aluminate 1-2, zinc oxide 2-3；Preparation method is by iron powder, aluminum sulfate, PTPP (potassium tripolyphosphate), celestite powder, the mixing of straw ashes, grind to form 200-300 mesh powder, be subsequently adding Silane coupling agent KH550 mix homogeneously, under 10-15Mpa, be pressed into blank, then, calcine 3-4 hour at sending into 920-950 DEG C, after cooling, be ground into 300-400 mesh powder, mix with other residual components, it is heated to 60-70 DEG C, stirs 1-2 hour under 1200-1500 rev/min, to obtain final product.
Composite powder metallurgy material of the present invention, is made up of step in detail below:
(1) by iron powder, Cu, Mn, Cr, Zn, Ti, Be mixing; add in suitable quantity of water; send into ball milling in ball mill; obtain 250-400 mesh powder; then, it is spray-dried, dries, under 9-11Mpa pressure, be pressed into bulk; then under nitrogen protection atmosphere 700-750 DEG C be sintered 8-10 hour, will sintering after crushing material after cross 200-400 mesh sieve；
(2) by other residual components mix homogeneously；
(3) step (1), (2) material after mixing and stirring 75-95 minute, are loaded mould, is pressed into base at 60-65 DEG C；
(4) pressed compact is placed in sintering furnace, sinters 1-2 hour under the conditions of 350-450 DEG C with 9-12 DEG C/min of ramp, then sinter 1.5-2 hour under the conditions of 650-750 DEG C with 6-8 DEG C/min of ramp;Then sinter 2-3 hour under the conditions of 1080-1180 DEG C with 5-7 DEG C/min of ramp；Last air is cooled to room temperature.
The present invention adds auxiliary agent, makes alloy powder be uniformly dispersed, it is ensured that the uniformity in length and breadth of interiors of products organizational structure, makes increase the fatigue life of product；The reaction between titanium valve, boron carbide, carborundum and alloy element powder, simple and fast, preparing of low cost is utilized to be distributed the composite element more uniform, reinforcement is combined more preferably, combination property is the most excellent with basal body interface.
Specific embodiments
Below by instantiation, the present invention is described in detail.
A kind of composite powder metallurgy material, is made up of the raw material of following weight portion (kilogram): titanium boride 0.3, graphite 0.7, titanium silicide 0.4, iron powder 83, Cu 4.1, Mn 3.3, Cr 13.5, Zn 2.1, Ti
2.8, Be 0.3, auxiliary agent 2；
Described auxiliary agent is made up of the raw material of following weight portion (kilogram): iron powder 30, aluminum sulfate 3, PTPP (potassium tripolyphosphate) 1, celestite powder 2, straw ashes 1, Silane coupling agent KH550 1, dimethicone 3, isopropyl distearyl epoxide Aluminate 1, zinc oxide 2；Preparation method is by iron powder, aluminum sulfate, PTPP (potassium tripolyphosphate), celestite powder, the mixing of straw ashes, grind to form 200-300 mesh powder, be subsequently adding Silane coupling agent KH550 mix homogeneously, under 10-15Mpa, be pressed into blank, then, calcine 3-4 hour at sending into 920-950 DEG C, after cooling, be ground into 300-400 mesh powder, mix with other residual components, it is heated to 60-70 DEG C, stirs 1-2 hour under 1200-1500 rev/min, to obtain final product.
Composite powder metallurgy material of the present invention, is made up of step in detail below:
(1) by iron powder, Cu, Mn, Cr, Zn, Ti, Be mixing; add in suitable quantity of water; send into ball milling in ball mill; obtain 250-400 mesh powder; then, it is spray-dried, dries, under 9-11Mpa pressure, be pressed into bulk; then under nitrogen protection atmosphere 700-750 DEG C be sintered 8-10 hour, will sintering after crushing material after cross 200-400 mesh sieve；
(2) by other residual components mix homogeneously；
(3) step (1), (2) material after mixing and stirring 75-95 minute, are loaded mould, is pressed into base at 60-65 DEG C；
(4) pressed compact is placed in sintering furnace, sinters 1-2 hour under the conditions of 350-450 DEG C with 9-12 DEG C/min of ramp, then sinter 1.5-2 hour under the conditions of 650-750 DEG C with 6-8 DEG C/min of ramp;Then sinter 2-3 hour under the conditions of 1080-1180 DEG C with 5-7 DEG C/min of ramp；Last air is cooled to room temperature.
Through detection, the hardness of the present invention: HRC56；Tensile strength: 1190MPa.
Claims (1)
1. a composite powder metallurgy material, it is characterized in that, be prepared by the raw materials in: titanium boride 0.3-0.5, graphite 0.7-0.9, titanium silicide 0.4-0.7, iron powder 83-85, Cu 4.1-4.4, Mn 3.3-3.5, Cr 13.5-14.7, Zn 2.1-2.8, Ti 2.8-3.4, Be 0.3-0.5, auxiliary agent 2-3；Described auxiliary agent is prepared by the raw materials in: iron powder 30-40, aluminum sulfate 3-4, PTPP (potassium tripolyphosphate) 1-2, celestite powder 2-3, straw ashes 1-2, Silane coupling agent KH550 1-2, dimethicone 3-4, isopropyl distearyl epoxide Aluminate 1-2, zinc oxide 2-3；Preparation method is by iron powder, aluminum sulfate, PTPP (potassium tripolyphosphate), celestite powder, the mixing of straw ashes, grind to form 200-300 mesh powder, be subsequently adding Silane coupling agent KH550 mix homogeneously, under 10-15MPa, be pressed into blank, then, calcine 3-4 hour at sending into 920-950 DEG C, after cooling, be ground into 300-400 mesh powder, mix with other residual components, it is heated to 60-70 DEG C, stirs 1-2 hour under 1200-1500 rev/min, to obtain final product；
Described composite powder metallurgy material is made up of step in detail below:
(1) by iron powder, Cu, Mn, Cr, Zn, Ti, Be mixing; add in suitable quantity of water; send into ball milling in ball mill; obtain 250-400 mesh powder; then, it is spray-dried, dries, under 9-11MPa pressure, be pressed into bulk; then under nitrogen protection atmosphere 700-750 DEG C be sintered 8-10 hour, will sintering after crushing material after cross 200-400 mesh sieve；
(2) by other residual components mix homogeneously；
(3) step (1), (2) material after mixing and stirring 75-95 minute, are loaded mould, is pressed into base at 60-65 DEG C；
(4) pressed compact is placed in sintering furnace, sinters 1-2 hour under the conditions of 350-450 DEG C with 9-12 DEG C/min of ramp, then sinter 1.5-2 hour under the conditions of 650-750 DEG C with 6-8 DEG C/min of ramp;Then sinter 2-3 hour under the conditions of 1080-1180 DEG C with 5-7 DEG C/min of ramp；Last air is cooled to room temperature.
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| CN104120361B true CN104120361B (en) | 2016-07-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6450670B2 (en) * | 2015-11-13 | 2019-01-09 | 新日本電工株式会社 | Titanium boride-containing powder, method for producing the same, and method for producing sintered metal |
| CN105755376A (en) * | 2016-03-31 | 2016-07-13 | 苏州睿昕汽车配件有限公司 | High-temperature-resistant automobile accessory alloy steel material and preparation method thereof |
| CN109175355B (en) * | 2018-08-17 | 2020-10-27 | 宁波瑞丰汽车零部件有限公司 | Iron-based connecting pressing plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10259460A (en) * | 1997-03-19 | 1998-09-29 | Mitsubishi Materials Corp | Sliding member made of free graphite-precipitated ferrous sintering material excellent in seizuring resistance and water resistance |
| CN101235465A (en) * | 2008-03-07 | 2008-08-06 | 镇江能丰电冶复合材料有限公司 | In-situ synthesis of boride/iron-base composite material and manufacturing method thereof |
| CN103600060A (en) * | 2013-10-10 | 2014-02-26 | 铜陵新创流体科技有限公司 | Powder metallurgy metal bearing material and manufacturing method thereof |
| CN103600062A (en) * | 2013-10-10 | 2014-02-26 | 铜陵新创流体科技有限公司 | Powder metallurgy alloy composite material and manufacturing method thereof |
| EP2703509A1 (en) * | 2012-08-28 | 2014-03-05 | Tata Steel Nederland Technology B.V. | TiC- and TiB2-Particles reinforced high strength and low density steel with improved E-modulus and method for producing said steel |
-
2014
- 2014-06-26 CN CN201410292093.XA patent/CN104120361B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10259460A (en) * | 1997-03-19 | 1998-09-29 | Mitsubishi Materials Corp | Sliding member made of free graphite-precipitated ferrous sintering material excellent in seizuring resistance and water resistance |
| CN101235465A (en) * | 2008-03-07 | 2008-08-06 | 镇江能丰电冶复合材料有限公司 | In-situ synthesis of boride/iron-base composite material and manufacturing method thereof |
| EP2703509A1 (en) * | 2012-08-28 | 2014-03-05 | Tata Steel Nederland Technology B.V. | TiC- and TiB2-Particles reinforced high strength and low density steel with improved E-modulus and method for producing said steel |
| CN103600060A (en) * | 2013-10-10 | 2014-02-26 | 铜陵新创流体科技有限公司 | Powder metallurgy metal bearing material and manufacturing method thereof |
| CN103600062A (en) * | 2013-10-10 | 2014-02-26 | 铜陵新创流体科技有限公司 | Powder metallurgy alloy composite material and manufacturing method thereof |
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