CN103170632A - Solid solution sintering method of copper alloy steel piece and sintering of compressor swash plate - Google Patents
Solid solution sintering method of copper alloy steel piece and sintering of compressor swash plate Download PDFInfo
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- CN103170632A CN103170632A CN2013101128402A CN201310112840A CN103170632A CN 103170632 A CN103170632 A CN 103170632A CN 2013101128402 A CN2013101128402 A CN 2013101128402A CN 201310112840 A CN201310112840 A CN 201310112840A CN 103170632 A CN103170632 A CN 103170632A
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Abstract
The invention discloses a solid solution sintering method of a copper alloy steel piece and sintering of a compressor swash tray and aims at providing the solid solution sintering method of the copper alloy steel piece and sintering of the compressor swash tray which are simple in process, high in production efficiency and easy to control in quality. The steel piece can be put in a die which is made of graphite. Copper alloyed powders can be covered and scattered on the surface of the steel piece of a copper alloy layer which needs sintering so that the surface of the steel piece of the copper alloy layer is covered with the copper alloyed powders. The graphite die which is provided with the copper alloy powders and the steel piece is put in a heating furnace for heating. The heating temperature is 1100 DEG C +/- 50 DEG C. The time of insulation is 2-3 hours. The copper alloy powders are completely melted. After cooling, the graphite die can be demoulded so that the firmly bonded copper alloy layer is formed on the surface of the steel piece, wherein the surface of the steel piece is covered with the copper alloyed powders. The method has the advantages of being high in bonding strength, simple in manufacturing process, high in production efficiency, low in manufacturing cost and good in product quality.
Description
Technical field
The present invention relates to two kinds of methods that metal material is compound, relate in particular to the sintering of the compound sintering method of an Albatra metal-and steel part and compressor slanting plate.
Background technology
Traditional sliding bearing is all to cast flat board or axle sleeve with the copper alloy cast mostly, form through machining again, such structure manufacturing cost is high, and particularly along with the rise of nonferrous metal price, the copper/copper alloy bearing of this integral body is known as gradually bimetallic bearing and substitutes.The manufacture method of present bimetallic bearing is take steel as matrix, spreads equably copper alloy powder at the upper surface of steel part, and makes it have certain spreading thickness; Then heating together makes the surface of copper alloy powder at half state that melts, and makes between copper alloy powder and copper alloy powder and the mutual combination of steel matrix, be called sintering, then by rolling, improve the density of surface copper alloy, and control its thickness, form copper-steel bimetal bearing material.Common this method is fit to the sliding bearing on plane, is the sheet material of first making copper-bimetal copper-steel for the sliding bearing of circular shaft shell-like, after roll into as requested again round sleeve with opening.And on a plurality of surfaces of steel matrix, be covered with copper alloy as tow sides or side, and just needing repeatedly sintered copper alloy, its technique is just very complicated, and difficult quality is controlled.As the swash plate of compressor of automobile air-conditioning system, its tow sides all are covered with copper alloy layer, just need tow sides to be divided into twice sintering and rolling mill practice more complicated, production efficiency is low.
The content of invention
The objective of the invention is to overcome the shortcoming that existing method exists, provide a kind of technique simple, production efficiency is high, and quality is held the solid solution sintering method of manageable copper alloy steel part and the sintering of compressor slanting plate.
In order to reach above-mentioned requirements, the solid solution sintering method of copper alloy steel part: it is characterized in that steel part is placed in the mould made from graphite, spread or sprinkle copper alloy powder at the steel piece surface that needs the sintered copper alloy layer, making to have the steel piece surface of copper alloy layer to be coated with copper alloy powder, to be put in heating furnace together with the graphite jig of copper alloy powder and steel part and heat, heating-up temperature is 1100 ℃ ± 50 ℃, be incubated 2-3 hour, copper alloy powder is melted fully, the demoulding after cooling makes on the surface of copper alloy powder that steel part covers and forms bonding firmly copper alloy layer.
Described heating is to carry out under the environment of hydrogen shield.
utilize the solid solution sintering method of copper alloy steel part to come the method for sintering compressor slanting plate: the shape chamber mould that is processed into that the steel swash plate can level puts into the graphite block of sintering, on the shape chamber of sintered copper alloy copper layer position, spreading even thickness needs the copper alloy copper powder of sintering, put the steel swash plate on the copper alloy copper powder, sprinkle the copper alloy powder of even thickness at the upper surface of steel swash plate, shape chamber mould is put at the uniform velocity to heat up in heating furnace is heated to 1100 ℃ ± 50 ℃, programming rate is 50-60 minute by room temperature to 1100 ℃ ± 50 ℃, be incubated 2.5-3 hour, little at the uniform velocity be cooled to 120 ℃ and come out of the stove by 1.5, the cooling rear demoulding of coming out of the stove.
Solid solution sintering method according to the copper alloy steel part of such scheme design, it utilizes the copper alloy fusing point characteristics lower than steel, make copper alloy powder melt in the die cavity of graphite, cooling, solidify, with the steel part strong bonded, form in conjunction with firmly, copper alloy layer that intensity is large.It is compared with the manufacture method of traditional double metal bearing, has the following advantages:
1, bond strength is high.Because copper alloy powder and steel part heat in mould together, temperature is even, and temperature reaches the state of the complete melting of copper alloy, and the atom of copper is penetrated in the crystal boundary that steel part shows iron, forms solid solution, and copper alloy fully contacts with steel part.It is different from traditional state that only is heated to copper alloy powder surface thawing, perhaps directly pour into a mould the copper alloy liquid of melting on steel part, directly the method for cast due to the priority time difference of cast and the temperature difference of copper alloy liquid and steel part, can affect the bond strength of copper alloy layer and steel part.
2, manufacturing process is simple.The method can be in graphite jig be covered the copper sintering process with any one of steel part or a plurality of surface by once sintered completing.
3, production efficiency is high.The copper sintering can be covered by once sintered completing in a plurality of surfaces, has avoided traditional a plurality of surface to need the repeatedly drawback of sintering, and does not need greatly to have shortened the production and processing cycle through rolling after sintering again.
4, low cost of manufacture.When sintering, although need graphite jig, the graphite jig cost is low, and reusable thousands of times an of mold has avoided a plurality of surfaces to need repeatedly sintering, the problem of energy dissipation.
5, good product quality.Copper alloy is combined with steel part under the state of melting fully, and it is different from copper alloy powder at half state that melts, and rely on rolling compacting, so the density of copper alloy is high, and the surface bears power of copper alloy is large, long service life.Graphite jig is different from other metal pattern or common molding sand mould, and scab and demoulding hard problem can not occur, and the accuracy of manufacture of graphite jig is high, and after sintering, the dimensional accuracy of workpiece is high.
Description of drawings
Fig. 1 is the structural representation of compressor slanting plate;
Fig. 2 is the shape chamber mode structure schematic diagram made from the graphite of sintering;
Fig. 3 spreads copper alloy powder in the mould of shape chamber, put into the steel swash plate and sprinkle the state diagram of copper alloy powder when sintering again.
Fig. 4 is the temperature control curve figure of sintering.
In figure: 1, steel swash plate; 2, shape chamber mould; 3, copper alloy copper powder; 4, copper alloy powder; 5, copper alloy layer.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
the solid solution sintering method of copper alloy steel part is that steel part is placed in the mould made from graphite, spread or sprinkle copper alloy powder at the steel piece surface that needs the sintered copper alloy layer, making to have the steel piece surface of copper alloy layer to be coated with copper alloy powder, to be put in heating furnace together with the graphite jig of copper alloy powder and steel part and heat, heating is to carry out under the environment of hydrogen shield, to reduce surface oxidation, heating-up temperature is 1100 ℃ ± 50 ℃, be incubated 2-3 hour, copper alloy powder is melted fully, the demoulding after cooling, make on the surface of copper alloy powder that steel part covers and form bonding firmly copper alloy layer.
Utilize the solid solution sintering method of copper alloy steel part to come sintering compressor slanting plate method as shown in Figure 1: the shape chamber mould 2 that is processed into that steel swash plate 1 can level puts into the graphite block of sintering, on the shape chamber of sintered copper alloy copper layer position, spread copper alloy copper powder 3 that even thickness needs sintering as shown in Figure 2, put steel swash plate 1 on copper alloy copper powder 3, the copper alloy powder 4 that sprinkles even thickness at the upper surface of steel swash plate 1 as shown in Figure 3.Shape chamber mould 2 is put at the uniform velocity to heat up in heating furnace is heated to 1100 ℃ ± 50 ℃, programming rate is 50-60 minute by room temperature to 1100 ℃ ± 50 ℃, be incubated 2.5-3 hour, little at the uniform velocity be cooled to 120 ℃ and come out of the stove by 1.5, the temperature control line of sintering as shown in Figure 4, the sintering of positive and negative two the friction surface copper alloy layers 5 of steel swash plate 1 is once completed in the cooling rear demoulding of coming out of the stove.Graphite shape chamber mould 2 after deviating from workpiece can be reused again as stated above.
Need the sintered copper alloy layer for the side at steel part, can leave the gap between the side of steel part and graphite shape chamber mould, add copper alloy powder in the gap after sintering get final product, no longer carefully state at this.
Claims (3)
1. the solid solution sintering method of copper alloy steel part, it is characterized in that steel part is placed in the mould made from graphite, spread or sprinkle copper alloy powder at the steel piece surface that needs the sintered copper alloy layer, making to have the steel piece surface of copper alloy layer to be coated with copper alloy powder, to be put in heating furnace together with the graphite jig of copper alloy powder and steel part and heat, heating-up temperature is 1100 ℃ ± 50 ℃, be incubated 2-3 hour, copper alloy powder is melted fully, the demoulding after cooling makes on the surface of copper alloy powder that steel part covers and forms bonding firmly copper alloy layer.
2. the solid solution sintering method of copper alloy steel part according to claim 1, is characterized in that described heating is to carry out under the environment of hydrogen shield.
3. utilizing according to claim 1 and 2, the solid solution sintering method of described copper alloy steel part comes the sintering compressor slanting plate, the shape chamber mould that it is characterized in that graphite block with sintering is processed into that the steel swash plate can level puts into, on the shape chamber of sintered copper alloy copper layer position, spreading even thickness needs the copper alloy copper powder of sintering, put the steel swash plate on the copper alloy copper powder, sprinkle the copper alloy powder of even thickness at the upper surface of steel swash plate, shape chamber mould is put at the uniform velocity to heat up in heating furnace is heated to 1100 ℃ ± 50 ℃, programming rate is 50-60 minute by room temperature to 1100 ℃ ± 50 ℃, be incubated 2.5-3 hour, little at the uniform velocity be cooled to 120 ℃ and come out of the stove by 1.5, the cooling rear demoulding of coming out of the stove.
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| CN2013101128402A CN103170632A (en) | 2013-03-18 | 2013-03-18 | Solid solution sintering method of copper alloy steel piece and sintering of compressor swash plate |
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| CN2013101128402A CN103170632A (en) | 2013-03-18 | 2013-03-18 | Solid solution sintering method of copper alloy steel piece and sintering of compressor swash plate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105108157A (en) * | 2015-09-24 | 2015-12-02 | 安平县德益金属复合材料有限公司 | Preparation method for double-metal composite sliding plate of automobile air-conditioning compressor and moulds |
| CN106544611A (en) * | 2017-01-19 | 2017-03-29 | 新昌县七星街道高欣机械厂 | Cover copper method in a kind of surface of small-sized steel part |
| CN107793015A (en) * | 2016-09-06 | 2018-03-13 | 秦文隆 | Model solid glass continuous shaping method |
| AT519398A1 (en) * | 2016-12-06 | 2018-06-15 | Miba Sinter Austria Gmbh | Method for producing a swash plate |
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| CN1718791A (en) * | 2005-06-24 | 2006-01-11 | 北京科技大学 | Method of preparing stainless steel composite material |
| JP3932159B2 (en) * | 2000-02-02 | 2007-06-20 | 大豊工業株式会社 | High-frequency sintering method for bimetallic bearing alloys |
| CN101469687A (en) * | 2007-12-24 | 2009-07-01 | 上海三电贝洱汽车空调有限公司 | Swash plate of swash plate compressor |
| CN101649858A (en) * | 2009-08-20 | 2010-02-17 | 浙江中达轴承有限公司 | Steel-based copper alloy dual-metal sliding bearing and preparation method thereof |
| CN102528048A (en) * | 2012-02-29 | 2012-07-04 | 上海工程技术大学 | Method for preparing aluminum bronze and steel bimetallic material |
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2013
- 2013-03-18 CN CN2013101128402A patent/CN103170632A/en active Pending
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| JP3932159B2 (en) * | 2000-02-02 | 2007-06-20 | 大豊工業株式会社 | High-frequency sintering method for bimetallic bearing alloys |
| CN1613586A (en) * | 2004-09-23 | 2005-05-11 | 沈阳子午线轮胎模具有限公司 | Self-lubricating friction reducing board with single-face and multi-face |
| CN1718791A (en) * | 2005-06-24 | 2006-01-11 | 北京科技大学 | Method of preparing stainless steel composite material |
| CN101469687A (en) * | 2007-12-24 | 2009-07-01 | 上海三电贝洱汽车空调有限公司 | Swash plate of swash plate compressor |
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| CN102528048A (en) * | 2012-02-29 | 2012-07-04 | 上海工程技术大学 | Method for preparing aluminum bronze and steel bimetallic material |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105108157A (en) * | 2015-09-24 | 2015-12-02 | 安平县德益金属复合材料有限公司 | Preparation method for double-metal composite sliding plate of automobile air-conditioning compressor and moulds |
| CN107793015A (en) * | 2016-09-06 | 2018-03-13 | 秦文隆 | Model solid glass continuous shaping method |
| AT519398A1 (en) * | 2016-12-06 | 2018-06-15 | Miba Sinter Austria Gmbh | Method for producing a swash plate |
| AT519398B1 (en) * | 2016-12-06 | 2019-05-15 | Miba Sinter Austria Gmbh | Method for producing a swash plate |
| US10792733B2 (en) | 2016-12-06 | 2020-10-06 | Miba Sinter Austria Gmbh | Method for producing a swashplate |
| CN106544611A (en) * | 2017-01-19 | 2017-03-29 | 新昌县七星街道高欣机械厂 | Cover copper method in a kind of surface of small-sized steel part |
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Application publication date: 20130626 |