CN1086615C - Process for preparing metal-base particles reinforced composite material - Google Patents
Process for preparing metal-base particles reinforced composite material Download PDFInfo
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- CN1086615C CN1086615C CN98101890A CN98101890A CN1086615C CN 1086615 C CN1086615 C CN 1086615C CN 98101890 A CN98101890 A CN 98101890A CN 98101890 A CN98101890 A CN 98101890A CN 1086615 C CN1086615 C CN 1086615C
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- metal
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- 239000011208 reinforced composite material Substances 0.000 title claims abstract description 7
- 239000002245 particle Substances 0.000 title claims description 21
- 238000004519 manufacturing process Methods 0.000 title description 2
- 238000000034 method Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000005516 engineering process Methods 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 239000011159 matrix material Substances 0.000 claims abstract description 6
- 238000002844 melting Methods 0.000 claims abstract description 6
- 230000008018 melting Effects 0.000 claims abstract description 6
- 239000000155 melt Substances 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 230000004927 fusion Effects 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 150000004767 nitrides Chemical class 0.000 claims description 2
- 229910021332 silicide Inorganic materials 0.000 claims description 2
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 2
- 238000010257 thawing Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 230000006698 induction Effects 0.000 abstract description 4
- 238000004663 powder metallurgy Methods 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 3
- 238000003756 stirring Methods 0.000 abstract description 2
- 238000000151 deposition Methods 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 6
- 238000004070 electrodeposition Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Powder Metallurgy (AREA)
Abstract
本发明提供一种制备金属基颗粒增强复合材料的方法，采用了增分熔融凝固加工技术。实现本发明的装备由供料器(1)，成形模(2)，熔体(3)(熔融区)，加热源感应圈(4)，已凝固部分(5)，工作台(6)，升降机(7)，感应加热电源(8)，微机控制部分(9)组成。本发明的优点在于材料性能提高和成本降低。对于WC增强钢基复合材料，增强体的体积分数达40%，相对密度达100%，硬度达HRC60，抗弯强度为1400MPa。成本降低到粉末冶金的60%，融体搅拌法的80%，喷雾共沉积法的70%。
The invention provides a method for preparing a metal-based particle-reinforced composite material, which adopts the processing technology of increasing fraction melting and solidification. Realize that the equipment of the present invention is by feeder (1), forming die (2), melt (3) (melting zone), heating source induction coil (4), solidified part (5), workbench (6), The elevator (7), the induction heating power supply (8), and the microcomputer control part (9) are composed. The advantages of the invention are improved material properties and reduced costs. For WC reinforced steel matrix composites, the volume fraction of the reinforcement reaches 40%, the relative density reaches 100%, the hardness reaches HRC60, and the bending strength is 1400MPa. The cost is reduced to 60% of the powder metallurgy, 80% of the melt stirring method, and 70% of the spray co-deposition method.
Description
The invention provides a kind of method for preparing metal-base particles reinforced composite material.
The metal-base particles reinforcing material has good mechanical performance (high specific strength, specific stiffness, high elastic modulus etc.) machine high-wearing feature and low-thermal-expansion rate, is widely adopted.Now Chang Yong preparation method has: powder metallurgic method, melt body paddling process and spraying co-electrodeposition method etc.
Powder metallurgic method can be mixed the matrix of various different performances with particle in all proportions, and the wild phase percentage by volume can reach 20～50%, and its enhancing distribution of particles of the material that makes is even, and combination property is better, is method commonly used.About in the book of powder metallurgy the method all being had introduction, " the Powder metallurgy Science " of R.M.German for example, Metal Powder Industries Federation, 1984. etc.But because this technology needs through mixing steps such as powder, compacting, sintering, technology is complicated, thereby has improved the material preparation cost, is only limited to little cost production, and the material that makes exists and is difficult to reach solid density, the more high shortcoming of content of surface oxygen, has also limited the application that further develops of this technology.
Melt body paddling process or jet particle casting and be in liquid metal, to add and strengthen particle and in addition churned mechanically method (Japan Patent, daybreak プ レ one キ: 57-130464).Its technology is easier, and cost is lower, be restricted but the problem that exists is the addition of particle, and the effect of mechanical force is difficult for making uniform particles to distribute.
The spraying co-electrodeposition method is with high-velocity fluid molten metal to be smashed to be injected in jointly with the wild phase particle after the atomizing again to make composite in the substrate.This is a kind of newer technology, has many superiority, because particle and parent metal reaction time are short, thereby have reduced the generation of interfacial brittle phase, thereby has improved load transmission and anti-crack ability when composite is out of shape.The material that this in addition technology makes has less gross segregation, and operation is simpler, is that (No.2 1977, p100) for R.G.Broojs, et al:Powder Met.20 for a kind of more promising composite material and preparation method thereof.But the defective of spraying co-electrodeposition method is the difficult control of its technological parameter, and the wild phase volume fraction can not be too high, and the shape that makes material is difficult to control, and these problems have limited its technology as a kind of preparation particle reinforcing material of routine.
Metal-base composites has had bigger development in recent years, also continually develops out some new type of metal based composites.Mainly be above-mentioned several on the preparation method.According to growing research, exploitation and the demand of producing, the technology of preparing of the metal-base composites that the needs exploitation makes new advances.
The smelting-solidifying process technology is utilized electric power, feeding speed, and cooperating of the relative moving speed of finishing die and heating source makes melting zone keep the scope of 2～40mm.And utilize function composite by electromagnetic stirring, can make and melt the body composition and distribution of particles is uniform state.And material can reach solid density.In preparation process, can adopt 2～6 loaders feed respectively, the ratio of the wild phase in the composite can be effectively, accurately control.Adopt the finishing die of cavity shape complexity, can once reach or near the predetermined prod shape.A kind of method for preparing metal-base particles reinforced composite material is provided.
The object of the invention is to utilize the smelting-solidifying process technology to prepare metal-base particles reinforced composite material, realizes low-cost, high-performance.
Formation of the present invention:
The present invention takes the smelting-solidifying process technology; it is characterized in that will be as the granular materials (carbide of wild phase; nitride; boride; silicide etc.) and as the metal material of matrix be provided to continuously in the finishing die with particle or Powdered top, make the material fusing that joins in the mould with high-frequency heating 10～100kW from finishing die.After material melts, drive lift finishing die is moved downward with respect to heating source.The part of leaving heating source is solidified gradually, and the raw material that provide continuously from top continue to be heated thawing.Regulate by the speed 5～200g/min of loader and the speed 2～100mm/min of lift, make melting zone keep the dynamic equilibrium of 2～40mm scope height.Like this, matrix and strengthen the fusion of body material and solidify and will in mould, carry out continuously from bottom to top and progressively finish, thus reach the purpose for preparing composite.
The invention has the advantages that material property improves and cost reduces.Strengthen base steel composite material for WC, the volume fraction that strengthens body reaches 40%, and relative density reaches 100%, and hardness reaches HRC60, and bending strength is 1400MPa.Cost is reduced to 60% of powder metallurgy, melts 80% of body paddling process, 70% of spraying co-electrodeposition method.
The present invention is further described below in conjunction with accompanying drawing.Fig. 1 is a kind of device schematic diagram of realizing the inventive method, (1) is loader, (2) be finishing die, (3) be melt (melting zone), (4) are the heating source induction coil, and (5) are for solidifying part, (6) be workbench, (7) be lift, (8) are induction heating power, and (9) are the microcomputer control section.
Embodiment
Raw material: 45 steel (particle, granularity～1mm), WC powder (granularity～1 μ m).
According to technology of the present invention, steel grit and WC powder are provided to 30g in the mould by institute's certainty ratio, with high frequency electric source heating, material begins to melt the postforming mould and moves down with respect to heating source, simultaneously from the raw material of continuous steel grit in the top of mould and WC powder.The specified output 20kW of power supply, feeding speed 16g/min, mould decrease speed 8mm/min.Make the WC particle reinforced composite.WC content 40wt%, microstructure is even, relative density 100%, hardness HRC 60, bending strength 1400MPa.
Claims (1)
1, a kind of method for preparing metal-base particles reinforced composite material, adopt the smelting-solidifying process technology, it is characterized in that: will be as the granular materials (carbide of wild phase, nitride, boride, silicide etc.) and as the metal material of matrix be provided to continuously in the finishing die with particle or Powdered top, make the material fusing that joins in the mould with high-frequency heating 10～100kW from finishing die; After material melts, drive lift finishing die is moved downward with respect to heating source; The part of leaving heating source is solidified gradually, and the raw material that provide continuously from top continue to be heated thawing; Regulate by the speed 5～200g/min of loader and the speed 2～100mm/min of lift, make melting zone keep the dynamic equilibrium of 2～40mm scope height; Like this, matrix and strengthen the fusion of body material and solidify and will in mould, carry out continuously from bottom to top and progressively finish, thus reach the purpose for preparing composite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98101890A CN1086615C (en) | 1998-05-26 | 1998-05-26 | Process for preparing metal-base particles reinforced composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98101890A CN1086615C (en) | 1998-05-26 | 1998-05-26 | Process for preparing metal-base particles reinforced composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1236683A CN1236683A (en) | 1999-12-01 |
| CN1086615C true CN1086615C (en) | 2002-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98101890A Expired - Fee Related CN1086615C (en) | 1998-05-26 | 1998-05-26 | Process for preparing metal-base particles reinforced composite material |
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| Country | Link |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811197B (en) * | 2010-04-14 | 2011-05-04 | 北京科技大学 | Method for preparing nano-scale dispersion-strengthened metal powder by microemulsion |
| GB201313849D0 (en) * | 2013-08-02 | 2013-09-18 | Castings Technology Internat | Producing a metal object |
| CN110976817A (en) * | 2019-12-10 | 2020-04-10 | 昆明理工大学 | A kind of preparation device and method of lotus-shaped porous metal material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87104019A (en) * | 1987-06-01 | 1988-12-14 | 凌源特钢制件厂 | The manufacture method of copper material and shaped piece blank thereof |
| CN1076149A (en) * | 1992-03-09 | 1993-09-15 | 亚瑞亚·勃朗勃威力有限公司 | Produce the technology of sintered compact by high-alloy steel powder |
-
1998
- 1998-05-26 CN CN98101890A patent/CN1086615C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87104019A (en) * | 1987-06-01 | 1988-12-14 | 凌源特钢制件厂 | The manufacture method of copper material and shaped piece blank thereof |
| CN1076149A (en) * | 1992-03-09 | 1993-09-15 | 亚瑞亚·勃朗勃威力有限公司 | Produce the technology of sintered compact by high-alloy steel powder |
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| Publication number | Publication date |
|---|---|
| CN1236683A (en) | 1999-12-01 |
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