CN101664799A - Connecting method of copper-steel composite component by induction fusion casting - Google Patents
Connecting method of copper-steel composite component by induction fusion casting Download PDFInfo
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- CN101664799A CN101664799A CN200910306947A CN200910306947A CN101664799A CN 101664799 A CN101664799 A CN 101664799A CN 200910306947 A CN200910306947 A CN 200910306947A CN 200910306947 A CN200910306947 A CN 200910306947A CN 101664799 A CN101664799 A CN 101664799A
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Abstract
The invention relates to a connecting method of a copper-steel composite component by induction fusion casting, relating to a connecting method of a copper-steel composite component. The connecting method solves the problems that after welding, the existing soldering method has poor air tightness of workpieces, and low tensile strength of joint. The method comprises the following steps: composinga steel substrate and a forming sleeve into workpieces, filling fusion casting materials into the clearances between the steel substrate and the forming sleeve, covering the fusion casting materials with soldering flux a, and heating and insulating the workpieces; and adding soldering flux b to the clearances to fill with the clearances, continuing to heat and insulate, cooling to 400 DEG C, and then slowly cooling to room temperature, thus completing the connection of the copper-steel composite component. The tensile strength of joint of the copper-steel composite component obtained by adopting the method can achieve 232 MPa; and through seal test under oil pressure of 3MPa, the joint can keep no leakage for 5 minutes.
Description
Technical field
The present invention relates to a kind of method of attachment of copper-steel composite component.
Background technology
In order to make metal material give play to its performance to greatest extent, one of method is made up the different material of performance to make composite component.The copper alloy electrical and thermal conductivity performance is good, and steel has advantages such as price is low, intensity is high, magnetic property excellence, so copper-steel composite component can realize the performance of copper and steel and complementation economically, has obtained application in a lot of occasions.
The manufacturing of copper-steel composite component must relate to the connectivity problem of the two, and the welding method commonly used that relates to the copper steel dissimilar metal has melting, soldering, Solid-State Welding.But when adopting the method welding complicated shape weld seam of soldering, add the solder difficulty to weld seam, the air-tightness of postwelding workpiece is relatively poor, strength of joint is low.Need worked copper steel part in advance when traditional copper-steel composite component connects, machining time is long, and production efficiency is low, and to the high requirement that is equipped with in the welding process.
Summary of the invention
Technical problem to be solved by this invention is in order to solve the existing problem that method for welding postwelding air tightness of workpiece is poor, joint tensile strength is low, a kind of induction fusion casting method of attachment of copper-steel composite component to be provided.
The induction fusion casting method of attachment of copper-steel composite component of the present invention is as follows: one, according to the shaped design steel matrix of the composite component that will obtain with become jacket, gapped workpiece in the middle of the outside that the moulding cover is enclosed within steel matrix is assembled into; Two, fill up the gap of steel matrix and moulding inner room with melt material, and cover melt material, again workpiece is heated to 700 ℃～750 ℃, be incubated 10 seconds with solder flux a; Three, in the gap, add soldering flux b again and fill up the gap, continue to be heated to 930 ℃～1150 ℃, be incubated 20 seconds～40 seconds, in the gap, replenish the adding melt material in the time of insulation at interval in 5 seconds and fill up the gap, speed with 20 ℃/s～40 ℃/s is cooled to 400 ℃ then, slowly cool to room temperature then, promptly obtain copper-steel composite component through machining again.The described steel matrix of the inventive method step 1 is that steel matrix is 10# steel or 45# steel; The described melt material of step 2 is H62 brass, red copper or HS221 tin brass welding rod; Solder flux a described in the step 2 is made up of 40～45 weight portion boric acid, 40～45 weight portion boraxs and 10～20 weight portion potassium fluorides; The described soldering flux b of step 3 is made up of 45～55 weight portion boric acid and 45～55 weight portion boraxs.
Adopt the inventive method gained copper-steel composite component center tap tensile strength can reach 232MPa,, keep 5 minutes joints not have leakage phenomenon through 3MPa oil pressure sealing test.
Description of drawings
Fig. 1 is the workpiece in the specific embodiment 11; Fig. 2 is a copper-steel composite component in the specific embodiment 11, and 4 expression 10# are firm among the figure, 5 expression melt materials; Fig. 3 is H62 brass and a 10# steel jointing metallograph at the interface in the specific embodiment 11; Fig. 4 is red copper and a 10# steel jointing metallograph at the interface in the specific embodiment 12; Fig. 5 is red copper and a 10# steel jointing metallograph at the interface in the specific embodiment 13.
The specific embodiment
Technical solution of the present invention is not limited to the following cited specific embodiment, also comprises any combination between each specific embodiment.
The specific embodiment one: the induction fusion casting method of attachment of copper-steel composite component is as follows in the present embodiment: one, according to the shaped design steel matrix 1 of the composite component that will obtain with become jacket 2, gapped 3 workpiece in the middle of the outside that becomes jacket 2 to be enclosed within steel matrix 1 is assembled into; Two, fill up steel matrix 1 and the gap 3 that becomes 2 of jackets with melt material, and cover melt material, again workpiece is heated to 700 ℃～750 ℃, be incubated 10 seconds with solder flux a; Three, in gap 3, add soldering flux b again and fill up gap 3, continue to be heated to 930 ℃～1150 ℃, be incubated 20 seconds～40 seconds, in gap 3, replenish the adding melt material in the time of insulation at interval in 5 seconds and fill up gap 3, speed with 20 ℃/s～40 ℃/s is cooled to 400 ℃ then, slowly cool to room temperature then, promptly obtain copper-steel composite component through machining again.
Used firing equipment is produced by the two ordinary telegram source technology Co., Ltds in Shenzhen in the present embodiment, and model is a SP30-AB type HF induction heating apparatus.
The specific embodiment two: what present embodiment and the specific embodiment one were different is that the described steel matrix of step 1 is that steel matrix is 10# steel or 45# steel.Other is identical with the specific embodiment one.
The specific embodiment three: what present embodiment was different with the specific embodiment one or two is that the described melt material of step 2 is H62 brass, red copper or HS221 tin brass welding rod.Other is identical with the specific embodiment one or two.
The HS221 tin brass welding rod is pressed mass fraction and is made up of 60% bronze medal, 38.7% zinc, 0.3% silicon and 1% tin in the present embodiment.
The specific embodiment four: what present embodiment and the specific embodiment one to three were different is that the solder flux a described in the step 2 is made up of 40～45 weight portion boric acid, 40～45 weight portion boraxs and 10～20 weight portion potassium fluorides.Other is identical with the specific embodiment one to three.
The specific embodiment five: what present embodiment and the specific embodiment one to four were different is that the heating-up temperature described in the step 2 is 710 ℃～740 ℃.Other is identical with the specific embodiment one to four.
The specific embodiment six: what present embodiment and the specific embodiment one to five were different is that the heating-up temperature described in the step 2 is 730 ℃.Other refers to that with the specific embodiment one five is identical.
The specific embodiment seven: what present embodiment and the specific embodiment one to six were different is that the described soldering flux b of step 3 is made up of 45～55 weight portion boric acid and 45～55 weight portion boraxs.Other refers to that with the specific embodiment one six is identical.
The specific embodiment eight: what present embodiment and the specific embodiment one to seven were different is that the described heating-up temperature of step 3 is 950 ℃～1100 ℃.Other is identical with the specific embodiment one to seven.
The specific embodiment nine: what present embodiment and the specific embodiment one to eight were different is that the described heating-up temperature of step 3 is 970 ℃～1000 ℃.Other is identical with the specific embodiment one to eight.
The specific embodiment ten: what present embodiment and the specific embodiment one to nine were different is that the described heating-up temperature of step 3 is 980 ℃.Other is identical with the specific embodiment one to nine.
The specific embodiment 11: present embodiment and the specific embodiment one to ten are different is according to as shown in Figure 1, the turning of 10# steel is processed into steel matrix 1 and is become jacket 2, then steel matrix 1 is formed gapped 3 workpiece with becoming jacket 2, again H62 brass is filled up gap 3, and cover H62 brass with solder flux a, workpiece is heated to 750 ℃, be incubated 10 seconds, in gap 3, add soldering flux b then and fill up gap 3, continue to be heated to 950 ℃, be incubated 20 seconds, replenished adding H62 brass in the time of insulation at interval in 5 seconds and fill up gap 3 in gap 3, the speed with 30 ℃/s is cooled to 400 ℃ then, slowly cools to room temperature again, promptly finish the connection of copper-steel composite component, the gained copper-steel composite component is promptly got as shown in Figure 2 copper-steel composite component through machining.
Solder flux a used in the present embodiment is by 4 gram boric acid, and 4 gram boraxs and 2 gram potassium fluorides are formed; Soldering flux b what 5 gram borax of 5 gram boric acid is made of.
Present embodiment gained copper-steel composite component joint tensile strength reaches 205MPa, through 3MPa oil pressure sealing test, keeps 5 minutes joints not have leakage phenomenon.
As can be known, weld seam is in conjunction with densification by Fig. 3 (H62 brass and 10# steel jointing metallograph at the interface).
The specific embodiment 12: what present embodiment and the specific embodiment 11 were different is with 10# steel and H62 brass turning processing, and be assembled into as shown in Figure 2 workpiece, use HYAg45Sn solder brazing workpiece then, gained joint tensile strength is 122MPa, leak through 3MPa oil pressure sealing test joint, joint does not have sealing.
By Fig. 4 (H62 brass and 10# steel jointing metallograph at the interface) as can be known, weld seam is in conjunction with loose.
The specific embodiment 13: present embodiment and the specific embodiment 11 are different is according to as shown in Figure 1, the turning of 10# steel is processed into steel matrix 1 and is become jacket 2, then steel matrix 1 is formed gapped 3 workpiece with becoming jacket 2, again red copper is filled up gap 3, and cover red copper with solder flux a, workpiece is heated to 750 ℃, be incubated 10 seconds, in gap 3, add soldering flux b then and fill up gap 3, continue to be heated to 950 ℃, be incubated 20 seconds, replenished the adding red copper in the time of insulation at interval in 5 seconds and fill up gap 3 in gap 3, the speed with 30 ℃/s is cooled to 400 ℃ then, slowly cools to room temperature again, promptly finish the connection of copper-steel composite component, the gained copper-steel composite component is promptly got as shown in Figure 2 copper-steel composite component through machining.
Solder flux a used in the present embodiment is by 4 gram boric acid, and 4 gram boraxs and 2 gram potassium fluorides are formed; Soldering flux b what 5 gram borax of 5 gram boric acid is made of.
Present embodiment gained copper-steel composite component joint tensile strength reaches 232MPa, through 3MPa oil pressure sealing test, keeps 5 minutes joints not have leakage phenomenon.
As can be known, weld seam is in conjunction with densification by Fig. 5 (red copper and 10# steel jointing metallograph at the interface).
The specific embodiment 14: what present embodiment and the specific embodiment 13 were different is with 10# steel and red copper turning processing, and be assembled into as shown in Figure 2 workpiece, use HYAg45Sn solder brazing workpiece then, gained joint tensile strength is 107MPa, through 3MPa oil pressure sealing test, keep 5 minutes part joints to leak.
HYAg45Sn solder used in the present embodiment is produced by Changshu China silver solder Co., Ltd.
The specific embodiment 15: what present embodiment and the specific embodiment one to ten were different is the measure-alike of copper in gap size described in the step 1 and the copper-steel composite component.Other are with identical with the specific embodiment one to ten.
The specific embodiment 16: present embodiment and the specific embodiment one to 11 are different is that the thickness that is used to cover the solder flux a of melt material in the step 2 is 2mm ~ 4mm.Other are with identical with the specific embodiment one to 11.
Claims (10)
1. the induction fusion casting method of attachment of copper-steel composite component, the induction fusion casting method of attachment that it is characterized in that copper-steel composite component is as follows: one, according to the shaped design steel matrix (1) of the composite component that will obtain with become jacket (2), the workpiece of gapped (3) in the middle of the outside that will become jacket (2) to be enclosed within steel matrix (1) is assembled into; Two, fill up steel matrix (1) and the gap (3) that becomes between jacket (2) with melt material, and cover melt material, again workpiece is heated to 700 ℃～750 ℃, be incubated 10 seconds with solder flux a; Three, in gap (3), add soldering flux b again and fill up gap (3), continue to be heated to 930 ℃～1150 ℃, be incubated 20 seconds～40 seconds, in gap (3), replenish the adding melt material in the time of insulation at interval in 5 seconds and fill up gap (3), speed with 20 ℃/s～40 ℃/s is cooled to 400 ℃ then, slowly cool to room temperature then, promptly obtain copper-steel composite component through machining again.
2. the induction fusion casting method of attachment of copper-steel composite component according to claim 1 is characterized in that the described steel matrix of step 1 is 10# steel or 45# steel.
3. the induction fusion casting method of attachment of copper-steel composite component according to claim 1 and 2 is characterized in that the described melt material of step 2 is H62 brass, red copper or HS221 tin brass welding rod.
4. the induction fusion casting method of attachment of copper-steel composite component according to claim 3 is characterized in that the solder flux a described in the step 2 is made up of 40～45 weight portion boric acid, 40～45 weight portion boraxs and 10～20 weight portion potassium fluorides.
5. according to the induction fusion casting method of attachment of claim 1,2 or 4 described copper-steel composite components, it is characterized in that the heating-up temperature described in the step 2 is 710 ℃～740 ℃.
6. according to the induction fusion casting method of attachment of claim 1,2 or 4 described copper-steel composite components, it is characterized in that the measure-alike of copper in gap size described in the step 1 and the copper-steel composite component.
7. the induction fusion casting method of attachment of copper-steel composite component according to claim 5 is characterized in that the described soldering flux b of step 3 is made up of 45～55 weight portion boric acid and 45～55 weight portion boraxs.
8. according to the induction fusion casting method of attachment of claim 1,2,4 or 7 described copper-steel composite components, it is characterized in that the described heating-up temperature of step 3 is 950 ℃～1100 ℃.
9. according to the induction fusion casting method of attachment of claim 1,2,4 or 7 described copper-steel composite components, it is characterized in that the described heating-up temperature of step 3 is 970 ℃～1000 ℃.
10. the induction fusion casting method of attachment of copper-steel composite component according to claim 8, the thickness that it is characterized in that being used in the step 2 covering the solder flux a of melt material is 2mm～4mm.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013086721A1 (en) * | 2011-12-15 | 2013-06-20 | Vestas Wind Systems A/S | A method of repairing defects in cast iron workpieces, and a method of connecting cast iron workpieces |
| CN103614511A (en) * | 2013-11-27 | 2014-03-05 | 中钢集团鞍山热能研究院有限公司 | Oxygen lance nozzle with complex structure |
| CN107855496A (en) * | 2017-10-25 | 2018-03-30 | 安徽恒利增材制造科技有限公司 | A kind of copper base-steel bi-metal composite casting method |
| CN109482843A (en) * | 2018-12-30 | 2019-03-19 | 佳木斯大学 | A kind of bimetallic cast welding composite roll and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2429056A1 (en) * | 1978-06-19 | 1980-01-18 | Tournus Manuf Metallurg | PROCESS FOR PRODUCING COMPOSITE STRIPS BY CONTINUOUS CASTING |
| CN1067613C (en) * | 1998-11-03 | 2001-06-27 | 东北大学 | Final casting-rolling method for forming steel-in-copper bimetal material |
| US6118969A (en) * | 1999-09-10 | 2000-09-12 | Lexmark International, Inc. | Electrophotographic fuser roll having distributed thermal mass |
| CN1319680C (en) * | 2005-09-23 | 2007-06-06 | 北京交通大学 | Semi-solid vibration compounding process of steel-back aluminium-base composite plate |
| CN101386028B (en) * | 2008-10-31 | 2010-08-18 | 哈尔滨工业大学 | Cemented carbide/steel composite roller and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013086721A1 (en) * | 2011-12-15 | 2013-06-20 | Vestas Wind Systems A/S | A method of repairing defects in cast iron workpieces, and a method of connecting cast iron workpieces |
| US9545665B2 (en) | 2011-12-15 | 2017-01-17 | Vestas Wind Systems A/S | Method of repairing defects in cast iron workpieces, and a method of connecting cast iron workpieces |
| CN103614511A (en) * | 2013-11-27 | 2014-03-05 | 中钢集团鞍山热能研究院有限公司 | Oxygen lance nozzle with complex structure |
| CN103614511B (en) * | 2013-11-27 | 2015-07-01 | 中钢集团鞍山热能研究院有限公司 | Oxygen lance nozzle with complex structure |
| CN107855496A (en) * | 2017-10-25 | 2018-03-30 | 安徽恒利增材制造科技有限公司 | A kind of copper base-steel bi-metal composite casting method |
| CN109482843A (en) * | 2018-12-30 | 2019-03-19 | 佳木斯大学 | A kind of bimetallic cast welding composite roll and preparation method thereof |
| CN109482843B (en) * | 2018-12-30 | 2020-05-19 | 佳木斯大学 | Bimetal cast-weld composite roller and preparation method thereof |
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