CN101733623B - Method for preparing discharge plasma of metal laminated composite material - Google Patents
Method for preparing discharge plasma of metal laminated composite material Download PDFInfo
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- CN101733623B CN101733623B CN2009102423847A CN200910242384A CN101733623B CN 101733623 B CN101733623 B CN 101733623B CN 2009102423847 A CN2009102423847 A CN 2009102423847A CN 200910242384 A CN200910242384 A CN 200910242384A CN 101733623 B CN101733623 B CN 101733623B
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Abstract
The invention provides a method preparing discharge plasma of a metal laminated composite material and belongs to the technical field of the preparation of metal laminated composite materials. In the method, two or more types of bulk metals, of which the surfaces are simply treated, are used as raw materials to be combined, under conditions of vacuum or inert atmosphere and reasonably matched discharge plasma preparation process parameters and under an action of inverted high-speed flow of discharge shock waves generated by impulsive discharge, electrons and ions in electric fields, the surfaces to be combined of the bulk metals are punctured to a certain degree to make the surfaces to be combined quickly purified and activated and the metallurgical combination performed between the interfaces to be combined of the laminated bulk metals to make the bulk metals quickly combined and formed at a smaller pressure and at the low temperature, so that the metal laminated composite material with flat and straight interface, high combined strength and accurately controlled shape and size of products can be directly obtained. The method has the advantages of low requirement on the surface cleanliness of the metals to be combined, energy conservation and environmental protection, easy operation, strong repeatability, short flow and cycle and low cost.
Description
Technical field
The present invention relates to the layered metal composite material preparing technical field, a kind of method for preparing discharge plasma of metal laminated composite material particularly is provided.
Background technology
Layered metal composite material has good physical property, chemical property and comprehensive mechanical property owing to fully combined two or more metals advantage separately, has extensive use in national economy and each field of defence and military.At present public reported with bulk metal be that the preparation method of raw-material layered metal composite material has rolling+diffusion annealing, plating+annealing+rolling, the compound+heat treatment of exploding+rolling, roll welding is compound+rolling+several kinds of [Liu Xiaotao such as annealing; Deng. laminated-metal composite production technology and new development thereof. the material Leader; 2002,16 (7): 41-43; Pan Xiaoliang, etc. the complex technique of layered metal material and new development thereof. light-alloy process technology, 2008,36 (5): 9-13].But these preparation methods exist some shortcomings significantly: (1) technology is comparatively complicated, and the cycle is long; (2) uniformity of composite material interface state and lack of homogeneity, bond strength is low, shape control difficulty; (3) seriously polluted, production cost is high; (4) be difficult to prepare the thin or easy laminar composite that generates intermetallic compound in interface of coating thickness.Therefore; On the basis of existing layered metal composite material technology of preparing; The new technology of the short flow process of exploitation, low cost, efficient production high-test metal laminar composite enlarges its range of application, remains domestic and international Materials Science and Engineering hot research fields.
The ionized gas shape material that the positron-electron that plasma is produced after by ionization by the atom after depriving and atom by portions of electronics is formed, it is except that solid, liquid, gas, the 4th attitude that material exists.The technology and the technology that provides new that further develops of the science such as material, the energy, information, environment, space physics, geophysics that develop into of plasma physics.
Discharge plasma sintering (Spark Plasma Sintering; SPS) be between powder particle, directly to feed pulse current to carry out heat-agglomerating; Being a kind of novel Fast Sintering technology that development in recent years is got up, also is the successful Application of plasma physics in field of materials.Because the discharge plasma sintering technology combines plasma-activated, hot pressing, resistance heated together; Thereby have that homogeneous heating, intensification or cooling rate fast (can reach 1000K/min), sintering temperature low (than low 100～200 ℃ of conventional hot pressed sintering), temperature retention time short (usually in minutes), production efficiency are high, product organize tiny evenly, can keep characteristics such as material density height, the performance of raw-material nature, the fine structure that helps controlling sintered body, acquisition is good, can sintering functionally gradient material (FGM) and complicated shape goods.The discharge plasma sintering technology utilizes pulse ability, discharge pulse pressure and a joule thermogenetic TRANSIENT HIGH TEMPERATURE field to realize sintering process; High-quality and efficient for realizing, low consumption material preparation cheaply is significant; In the preparation of nano material, composite etc., show great superiority, be successfully applied to the preparation of metal, pottery, intermetallic compound, composite, functional material, nano bulk material and amorphous block material at present.
But; At present the raw material that adopt of discharge plasma sintering technology mainly all are powder particles, if can adopt fully the surface through the bulk metal after the simple process as raw material, based on discharge plasma sintering technology principle; Develop a kind of new short flow high efficiency layered metal composite material technology of preparing; Directly near-net forming high-test metal laminar composite helps expanding the application of discharge plasma technique and the kind of composite, has crucial meaning.
Summary of the invention
The purpose of this invention is to provide a kind of is the method for preparing discharge plasma of metal laminated composite material of raw material with the bulk metal, and complex process, cycle length, metal were wasted relatively poor, the problems such as interface bond strength is low, production cost height of interface dimensions uniformity serious, product during solution metal current laminar composite was produced.
The present invention develops a kind of method for preparing discharge plasma of metal laminated composite material; Two or more bulk metal after the process simple process of employing surface is for treating composite materials; By under the discharge plasma preparation technology parameter condition of vacuum condition or inert atmosphere and rational Match; At the discharge impact ripple of Pulsed Discharge and electronics, ion in electric field under the reciprocal flow at high speed effect; Bulk metal treats that composite surface to a certain extent can be breakdown; Make and treat that composite surface is able to further fast purification, activation, make the bulk metal that is superimposed together treat to take place between compound interface metallurgical binding, the quick combined shaping of low temperature under less pressure; The layered metal composite material that directly the acquisition interface is straight, bond strength is high, the shape of product size is accurately controlled is specially adapted to the thin or easy near-net forming that generates the layered metal composite material of intermetallic compound in interface of coating thickness.
A kind of method for preparing discharge plasma of metal laminated composite material, preparation process is following:
(1) is ready to treat two or more compound bulk metal blank;
(2) adopt machinery or chemical method that above-mentioned blank is treated that composite surface carries out simple process;
(3) will treat that compound bulk metal blank stacks and directly insert in the graphite jig, then mould put into the discharge plasma sintering equipment;
(4) adopt vacuum 10
-2The vacuum condition of～10Pa or inert atmosphere are rapidly heated to 400～1800 ℃ under the speed of 30～400 ℃/min, apply the axial compressive force of 5～30MPa, and insulation 1～15min carries out the discharge plasma combined shaping;
(5) cool to room temperature with the furnace, can obtain high-quality, high performance layered metal composite material.
The invention has the advantages that:
(1) treat that compound metal surface only need simply handle, cleannes are less demanding;
(2) interface of layered metal composite material is straight, and bond strength is high, and shape control accurately;
(3) energy-conserving and environment-protective, simple to operate, repeatable strong;
(4) less pressure, the low temperature high-quality layered metal composite material that is shaped in short-term, flow process and cycle are short, and cost is low;
(5) be specially adapted to the thin or easy near-net forming that generates the layered metal composite material of intermetallic compound in interface of coating thickness;
(6) the layered metal composite material interface does not have oxide impurity, can carry out follow-up reprocessing.
The specific embodiment
Embodiment 1:
Be ready to treat compound QSn4-3 tin bronze and LY12 aluminium alloy block blank, adopt sand paper and alcohol respectively QSn4-3 tin bronze and LY12 aluminium alloy block blank to be treated that composite surface handles.QSn4-3 tin bronze and LY12 aluminium alloy block blank stacked directly insert in the graphite jig; Then mould is put into the discharge plasma sintering equipment; System is evacuated to 2Pa; Under the speed of 30 ℃/min, be rapidly heated to 480 ℃, apply the axial compressive force of 30MPa, insulation 5min carries out the discharge plasma combined shaping.Cool to room temperature with the furnace, can obtain high-quality, high performance QSn4-3 tin bronze/LY12 aluminium alloy stratiform composite.
Embodiment 2:
Be ready to treat compound QSn4-3 tin bronze and LY12 aluminium alloy block blank, adopt alcohol and acetone respectively QSn4-3 tin bronze and LY12 aluminium alloy block blank to be treated that composite surface handles.QSn4-3 tin bronze and LY12 aluminium alloy block blank stacked directly insert in the graphite jig; Then mould is put into the discharge plasma sintering equipment; System is evacuated to 5Pa; Under the speed of 70 ℃/min, be rapidly heated to 490 ℃, apply the axial compressive force of 20MPa, insulation 10min carries out the discharge plasma combined shaping.Cool to room temperature with the furnace, can obtain high-quality, high performance QSn4-3 tin bronze/LY12 aluminium alloy stratiform composite.
Embodiment 3:
Be ready to treat compound QSn4-3 tin bronze and LY12 aluminium alloy block blank, adopt sand paper that QSn4-3 tin bronze and LY12 aluminium alloy block blank are treated that composite surface handles.QSn4-3 tin bronze and LY12 aluminium alloy block blank stacked directly insert in the graphite jig; Then mould is put into the discharge plasma sintering equipment; System is evacuated to 7Pa; Under the speed of 250 ℃/min, be rapidly heated to 500 ℃, apply the axial compressive force of 10MPa, insulation 1min carries out the discharge plasma combined shaping.Cool to room temperature with the furnace, can obtain high-quality, high performance QSn4-3 tin bronze/LY12 aluminium alloy stratiform composite.
Embodiment 4:
Be ready to treat compound fine copper and fine silver block blank, adopt sand paper and acetone respectively fine copper and fine silver block blank to be treated that composite surface handles.Fine copper and fine silver block blank stacked directly insert in the graphite jig; Then mould is put into the discharge plasma sintering equipment; System is evacuated to 1Pa; Under the speed of 110 ℃/min, be rapidly heated to 550 ℃, apply the axial compressive force of 25MPa, insulation 15min carries out the discharge plasma combined shaping.Cool to room temperature with the furnace, can obtain high-quality, high performance fine copper/fine silver laminar composite.
Embodiment 5:
Be ready to treat compound fine copper and fine silver block blank, adopt acetone that fine copper and fine silver block blank are treated that composite surface handles.Fine copper and fine silver block blank stacked directly insert in the graphite jig; Then mould is put into the discharge plasma sintering equipment; System is evacuated to 3Pa; Under the speed of 190 ℃/min, be rapidly heated to 570 ℃, apply the axial compressive force of 5MPa, insulation 12min carries out the discharge plasma combined shaping.Cool to room temperature with the furnace, promptly obtain high-quality, high performance fine copper/fine silver laminar composite.
Embodiment 6:
Be ready to treat compound fine copper and fine aluminium block blank, adopt alcohol that fine copper and fine aluminium block blank are treated that composite surface handles.Fine copper and fine aluminium block blank stacked directly insert in the graphite jig; Then mould is put into the discharge plasma sintering equipment; System is evacuated to 10Pa; Under the speed of 400 ℃/min, be rapidly heated to 520 ℃, apply the axial compressive force of 15MPa, insulation 8min carries out the discharge plasma combined shaping.Cool to room temperature with the furnace, can obtain high-quality, high performance fine copper/fine aluminium laminar composite.
Claims (1)
1. method for preparing discharge plasma of metal laminated composite material is characterized in that preparation process is following:
(1) is ready to treat two or more compound bulk metal blank;
(2) adopt machinery or chemical method that above-mentioned blank is treated that composite surface carries out simple process;
(3) will treat that compound bulk metal blank stacks and directly insert in the graphite jig, then mould put into the discharge plasma sintering equipment;
(4) adopt vacuum 10
-2The vacuum condition of～10Pa or inert atmosphere are rapidly heated to 400～1800 ℃ under the speed of 30～400 ℃/min, apply the axial compressive force of 5～30MPa, and insulation 1～15min carries out the discharge plasma combined shaping;
(5) cool to room temperature with the furnace, can obtain high-quality, high performance layered metal composite material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102423847A CN101733623B (en) | 2009-12-10 | 2009-12-10 | Method for preparing discharge plasma of metal laminated composite material |
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| CN2009102423847A CN101733623B (en) | 2009-12-10 | 2009-12-10 | Method for preparing discharge plasma of metal laminated composite material |
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| CN101733623A CN101733623A (en) | 2010-06-16 |
| CN101733623B true CN101733623B (en) | 2012-05-09 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102335792B (en) * | 2010-07-22 | 2016-03-23 | 深圳市伊比饰品有限公司 | The method of attachment of carbon steel and zirconia ceramics |
| JP5706193B2 (en) * | 2011-03-02 | 2015-04-22 | 株式会社タカコ | Manufacturing method of sliding member |
| CN105563063A (en) * | 2014-10-11 | 2016-05-11 | 中国航空工业集团公司西安飞机设计研究所 | Method for preparing metal composite structure workpiece |
| CN108296288B (en) * | 2018-01-12 | 2019-10-11 | 中南大学 | A kind of rolling preparation method improving aluminum laminate titanium composite material interface bond strength using nano metal powder |
| CN108637261B (en) * | 2018-06-04 | 2020-04-24 | 哈尔滨工业大学 | Preparation method of TiAl/TMCs layered composite material |
| CN114669974A (en) * | 2022-05-30 | 2022-06-28 | 昆明理工大学 | Preparation method of copper-silver composite material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328896A (en) * | 2000-06-07 | 2002-01-02 | 住友石炭矿业株式会社 | Electric joint method and device and joint element |
| KR20070041120A (en) * | 2005-10-14 | 2007-04-18 | 김상석 | Thermoelectric semiconductor module and manufacturing method thereof |
| CN101516804A (en) * | 2006-09-27 | 2009-08-26 | 法国原子能委员会 | Method for assembling refractory ceramic parts by means of spark plasma sintering (sps) |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328896A (en) * | 2000-06-07 | 2002-01-02 | 住友石炭矿业株式会社 | Electric joint method and device and joint element |
| KR20070041120A (en) * | 2005-10-14 | 2007-04-18 | 김상석 | Thermoelectric semiconductor module and manufacturing method thereof |
| CN101516804A (en) * | 2006-09-27 | 2009-08-26 | 法国原子能委员会 | Method for assembling refractory ceramic parts by means of spark plasma sintering (sps) |
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