CN102183143A - Composite material vacuum casting system and composite material preparation method - Google Patents
Composite material vacuum casting system and composite material preparation method Download PDFInfo
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- CN102183143A CN102183143A CN201110091375XA CN201110091375A CN102183143A CN 102183143 A CN102183143 A CN 102183143A CN 201110091375X A CN201110091375X A CN 201110091375XA CN 201110091375 A CN201110091375 A CN 201110091375A CN 102183143 A CN102183143 A CN 102183143A
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Abstract
The invention discloses a composite material vacuum casting system and a composite material preparation method. The system comprises a vacuum furnace in which a high container and a low container are arranged; the high container is arranged above the low container and corresponds to the low container; and the high container and the low container are respectively provided with independent heat sources. In the composite material vacuum casting system and the composite material preparation method, the vacuum casting preparation process of a composite material is simple, and high-efficiency preparation of the composite material with good multiple interface combination in one independent control heating system under vacuum conditions is realized.
Description
Technical field:
The present invention relates to the efficient casting composite material of vacuum field.For improving material mechanical performance, wearability, corrosion resistance or hear resistance etc., mode with metallurgy such as metal and metal (metalloid), particularly metal and compound (compound for preparing by vacuum casting or powder metallurgy as Fe-B system, Fe-Al system etc.), metal and pottery or compound and pottery is combined, and the composite of preparing suitable special occasions (wear-resistant, against corrosion) will have important project using value and technological innovation.
Background technology:
Conventional cast Composite Preparation process is complicated, generally a kind of easy oxidation metal or compound melting or the mode by powder metallurgy under vacuum are prepared into precast body, put into precast body is put into container, then another is melted good metal or compound and pour container into, carry out composite casting.In the Composite Preparation process, easily but the oxidation precast body is put into only preheating and cast under vacuum condition of container, to guarantee that composite material interface is in conjunction with good, generally, the Composite Preparation process is by a plurality of steps, is undertaken by fusing or pre-heating device more than one.For this reason, the invention provides a kind of efficient integrated method and can prepare the interface in conjunction with good composite.
The technology of the present invention is suitable for the casting composite material of efficient production such as metal and metal (metalloid), particularly metal and compound (compound for preparing by vacuum casting or powder metallurgy as Fe-B system, Fe-Al system etc.), metal and pottery or compound and Ceramic Composite gained.
Summary of the invention:
The object of the present invention is to provide a kind of composite vacuum casting system and composite material and preparation method thereof, in order to reach this purpose, the present invention is achieved by the following technical solutions: a kind of composite vacuum casting system, comprise vacuum drying oven, be provided with high-level container and low level container in the described vacuum drying oven, high-level container is arranged on low level vessel side top and corresponding with the low level container; Be respectively arranged with separate thermal source on described high-level container and the low level container.
Described high-level container is a container; Described low level container is a container.It is steady that the fire proofed wood backing strap is placed in described low level container bottom.Described thermal source is an induction coil.
The composite material and preparation method thereof of described vacuum casting system comprises the steps:
(1) be provided with high-level container and low level container in vacuum drying oven, high-level container is arranged on low level vessel side top and corresponding with the low level container; Be respectively arranged with separate thermal source on high-level container and the low level container; The angle of inclination of high-level container is 0-90 °;
(2) in high-level container, place materials with high melting point, in the low level container, place low melting material, open the thermal source that is provided with on high-level container and the low level container simultaneously, make the temperature in the high-level container reach 1600 ℃, make the temperature in the low level container reach 1400 ℃;
(3) treat liquation in high-level container and the low level container all melt clear after, stop earlier the low level container is heated, make the temperature of low level container drop to following 150～200 ℃ of low melting material melting temperature, stop again the high-level container heating, pour the inclination of high-level container inner melt into the low level container 1600 ℃ pouring temperature then;
(4) cast finished back about 5 hours, after laying down vacuum and closing recirculated water, opened fire door, took out composite.
The thermal source of described high-level container and low level container all is the induction coil heating, initial current is 50A in the induction coil, when treating that temperature reaches 400-500 ℃ in the vacuum drying oven, strengthen heating current to 300A, liquation in high-level container and the low level container is all melted clearly, and the temperature in the high-level container reaches 1600 ℃, and the temperature in the low level container reaches 1400 ℃; Make the induction coil of low level container stop energising earlier, keeping the electric current in the induction coil of high-level container simultaneously is 50A, make the temperature of low level container drop to 1350 ℃, stop, pouring the inclination of high-level container inner melt into the low level container 1600 ℃ pouring temperature then the high-level container heating; Cast finished back about 5 hours, after laying down vacuum and closing recirculated water, opened fire door, took out composite.
Described materials with high melting point is a carbon steel, and described low melting material is Fe
2B.
Place precast body in the described low level container by powder metallurgy or alternate manner preparation.
The composite material of vacuum casting preparation is simple among the present invention, under a vacuum condition, respectively in the independent control heating system, realizes the efficient production of the multiple interface of preparation in conjunction with good composite.
Description of drawings:
Fig. 1 is a composite vacuum casting system architecture front view of the present invention;
Fig. 2 is a composite vacuum casting system architecture side view of the present invention;
Fig. 3 is Fe of the present invention
2B/ base steel composite material interface metallographic structure (corrosive agent: 8% nitric acid alcohol);
Wherein: 1 is vacuum drying oven; 2 is upper container; 3 is the next container; 4 is the vacuum drying oven delivery port; 5 is fire door; 6 is the vacuum drying oven inner chamber; 7 is the transverse observation window; 8 is refractory brick; 9 is the vacuum drying oven water inlet; 10 is vacuum orifice; 11 is sealing ring; 12 is recirculated water; 13 is the longitudinal 2 observation window; 14 is upper coil; 15 is the next coil; 16 is melt or precast body; 17 is melt.
The specific embodiment:
Below in conjunction with accompanying drawing the present invention is done and to describe in further detail:
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of preparation method of efficient integrated vacuum founding compound material comprises following requirement:
At first, will the induction coil heating source of two independent control heating be housed in the vacuum melting furnace chamber, can realize heating or asynchronous heating synchronously.Two heating sources are high low level to be installed, and wherein being in high-order heating source can topple between 0-90 °, finishes Composite Preparation so that be implemented in will be in vacuum condition under in the container that high-order melt is poured into the placement of low level heating source.Be in and place the higher a kind of material of container smelting temperature in the high-order heating source, carry out preheating or fusing in the container that the material that another fusing point is lower can be placed in being in the low level coil.Can guarantee so all to carry out in a vacuum in the recombination process preparation process, the preparation schematic diagram as shown in Figure 1.
Secondly, the container bottom of placing in the low level heating source is placed the fire proofed wood backing strap and surely and with container bottom is contacted, to avoid in the excessive carrying of casting process coil.
Can place precast body (as compound or pottery etc.) in the low level heating source in the container by powder metallurgy or alternate manner preparation, at this moment can realize preheating by the size of control heating current to precast body, good to guarantee the interface in the prepared composite.
Again secondly,, all vacuum drying ovens of packing into are prepared that the required raw-material surface of composite will clean up, after the drying, put into vacuum drying oven, carry out preheating or fusing, pour into a mould the preparation composite again.Vacuum＜10-1Pa in the vacuum drying oven.
Embodiment:
The carbon steel piece (phosphorus content 0.5%) that takes by weighing surface cleaning, drying is put in the high-order heater coil container, presses Fe in addition
2The B atomic ratio takes by weighing surface cleaning, dry ferro-boron piece (boron content is 18.4%, and iron-holder is 81.6%) and pure iron piece (purity is 99.9%) put into the container of low level heater coil successively, and is no more than 1/2 of container container height.The refractory brick pad is placed in the container bottom of placing in the low level heating source surely to be contacted with container bottom.
The vacuum fire door is closed, open recirculated water, when making vavuum pump and being evacuated down to 1 * 10-1Pa.Feed high-order and low level coil current respectively, electric current is made as 50A earlier, when treating that temperature reaches 400-500 ℃ in the container, strengthen heating current to 300A, raw material all melts clear back (determining by observation window range estimation judgement or temperature instrumentation indicated temperature) in the upper-lower position container.When treating in the container of upper coil and the next coil that temperature reaches 1600 ℃ and 1400 ℃ respectively, close electric current in the next coil (simultaneously electric current in the upper coil is adjusted to 50A, guarantees) earlier, make down that temperature drops to 1350 ℃ of (Fe in the container
2The B fusing point) following 150～200 ℃ the time, closes electric current in the upper coil, pour into a mould (about about 1600 ℃ of pouring temperature) then, iron liquid in the upper container is poured in the next container, and cast finished back about 5 hours, after laying down vacuum and closing recirculated water, open fire door, take out composite.
The composite Fe that obtains
2B/ carbon steel interface as shown in Figure 3.As seen from the figure, the interface of this composite combines with the form of metallurgy, and in conjunction with respond well.
Above content is to further describing that the present invention did in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present invention only limits to this; for the general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by claims of being submitted to.
Claims (8)
1. a composite vacuum casting system comprises vacuum drying oven, it is characterized in that: be provided with high-level container and low level container in the described vacuum drying oven, high-level container is arranged on low level vessel side top and corresponding with the low level container; Be respectively arranged with separate thermal source on described high-level container and the low level container.
2. a kind of according to claim 1 composite vacuum casting system, it is characterized in that: described high-level container is crucible or casting mold; Described low level container is crucible or casting mold.
3. a kind of according to claim 1 composite vacuum casting system is characterized in that: it is steady that the fire proofed wood backing strap is placed in described low level container bottom.
4. a kind of according to claim 1 composite vacuum casting system, it is characterized in that: described thermal source is an induction coil.
5. based on the composite material and preparation method thereof of the described vacuum casting of claim 1 system, it is characterized in that, comprise the steps:
(1) be provided with high-level container and low level container in vacuum drying oven, high-level container is arranged on low level vessel side top and corresponding with the low level container; Be respectively arranged with separate thermal source on high-level container and the low level container; The angle of inclination of high-level container is 0-90 °;
(2) in high-level container, place materials with high melting point, in the low level container, place low melting material or do not melt the ceramic material that only carries out preheating, open the thermal source that is provided with on high-level container and the low level container simultaneously, make the temperature in the high-level container reach 1600 ℃, make the temperature in the low level container reach 1400 ℃;
(3) treat liquation in high-level container and the low level container all melt clear after, stop earlier the low level container is heated, make the temperature of low level container drop to following 150～200 ℃ of low melting material melting temperature, stop again the high-level container heating, pour the inclination of high-level container inner melt into the low level container 1600 ℃ pouring temperature then;
(4) cast finished back about 5 hours, after laying down vacuum and closing recirculated water, opened fire door, took out composite.
6. composite material and preparation method thereof according to claim 1, it is characterized in that, the thermal source of described high-level container and low level container all is the induction coil heating, initial current is 50A in the induction coil, when treating that temperature reaches 400-500 ℃ in the vacuum drying oven, strengthen heating current, the liquation in high-level container and the low level container is all melted clearly to 300A, and the temperature in the high-level container reaches 1600 ℃, and the temperature in the low level container reaches 1400 ℃; Make the induction coil of low level container stop energising earlier, keeping the electric current in the induction coil of high-level container simultaneously is 50A, make the temperature of low level container drop to 1350 ℃, stop, pouring the inclination of high-level container inner melt into the low level container 1600 ℃ pouring temperature then the high-level container heating; Cast finished back about 5 hours, after laying down vacuum and closing recirculated water, opened fire door, took out composite.
7. composite material and preparation method thereof according to claim 1 is characterized in that described materials with high melting point is a carbon steel, and described low melting material is Fe
2B.
8. composite material and preparation method thereof according to claim 1 is characterized in that, also can place the precast body by powder metallurgy or alternate manner preparation in the described low level container.
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| CN201110091375XA CN102183143A (en) | 2011-04-12 | 2011-04-12 | Composite material vacuum casting system and composite material preparation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113945091A (en) * | 2021-11-05 | 2022-01-18 | 西安鑫垚陶瓷复合材料有限公司 | Tool and method for fusing and siliconizing embedded powder inside and outside 2D and 3DN ceramic matrix composite components |
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| CN1364943A (en) * | 2001-01-12 | 2002-08-21 | 甘肃天星稀土功能材料有限公司 | Method and device for continuously producing macro magnetostriction material in large scale |
| CN1727096A (en) * | 2005-06-16 | 2006-02-01 | 东北大学 | 3D networked vacuum-air pressure method for casting friction composite material of ceramics-metals |
| CN200971378Y (en) * | 2006-02-28 | 2007-11-07 | 丁刚 | Equipment for manufacturing multi-phase reinforced metal composite material |
| CN101418386A (en) * | 2007-10-26 | 2009-04-29 | 中国科学院金属研究所 | Equipment for preparing multifunctional amorphous composite material |
| CN101539365A (en) * | 2009-04-27 | 2009-09-23 | 北京航空航天大学 | Smelting furnace with mechanical agitation and high-energy ultrasonic processing and smelting method thereof |
| CN201587973U (en) * | 2009-12-28 | 2010-09-22 | 北京有色金属研究总院 | Integrated device for preparing copper-based composite material with high thermal conductivity |
-
2011
- 2011-04-12 CN CN201110091375XA patent/CN102183143A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1364943A (en) * | 2001-01-12 | 2002-08-21 | 甘肃天星稀土功能材料有限公司 | Method and device for continuously producing macro magnetostriction material in large scale |
| CN1727096A (en) * | 2005-06-16 | 2006-02-01 | 东北大学 | 3D networked vacuum-air pressure method for casting friction composite material of ceramics-metals |
| CN200971378Y (en) * | 2006-02-28 | 2007-11-07 | 丁刚 | Equipment for manufacturing multi-phase reinforced metal composite material |
| CN101418386A (en) * | 2007-10-26 | 2009-04-29 | 中国科学院金属研究所 | Equipment for preparing multifunctional amorphous composite material |
| CN101539365A (en) * | 2009-04-27 | 2009-09-23 | 北京航空航天大学 | Smelting furnace with mechanical agitation and high-energy ultrasonic processing and smelting method thereof |
| CN201587973U (en) * | 2009-12-28 | 2010-09-22 | 北京有色金属研究总院 | Integrated device for preparing copper-based composite material with high thermal conductivity |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113945091A (en) * | 2021-11-05 | 2022-01-18 | 西安鑫垚陶瓷复合材料有限公司 | Tool and method for fusing and siliconizing embedded powder inside and outside 2D and 3DN ceramic matrix composite components |
| CN113945091B (en) * | 2021-11-05 | 2023-09-01 | 西安鑫垚陶瓷复合材料有限公司 | 2D, 3DN ceramic matrix composite component internal and external buried powder melt siliconizing tool and method |
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Application publication date: 20110914 |