CN1364673A - Isothermal welding method for producing copper-steel composite material - Google Patents
Isothermal welding method for producing copper-steel composite material Download PDFInfo
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- CN1364673A CN1364673A CN 01107029 CN01107029A CN1364673A CN 1364673 A CN1364673 A CN 1364673A CN 01107029 CN01107029 CN 01107029 CN 01107029 A CN01107029 A CN 01107029A CN 1364673 A CN1364673 A CN 1364673A
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Abstract
The present invention relates to an isothermal welding method for producing copper-steel composite material. Protective agent is first filled into the gap between the steel core rod and the outer wall; electrolytic copper is filled into the bin of composite blank; the composite blank is then set inside wall-type electric furnace to heat to 1130-1150 deg.c for electrolytic copper to smelt completely; and the power of the electric furnace is finally turned off section by section from the bottom to the top so that the composite blank is cooled to 1050 deg.c successively from bottom to top before discharge and air cooling. The present invention has simple technological process, high finished product rate and high product yield.
Description
The present invention relates to a kind of production method of copper-steel composite material, specifically, is a kind of isothermal welding method of production of copper steel composite material.
Copper-steel composite material is a kind of new material, and it is with copper, two kinds of metal composite of steel together, allows them bring into play the material of characteristic separately.At present, the method of production of copper steel composite material mainly contains the cast copper method both at home and abroad, it is poured into copper water in the gap of reserving between graphite ingot mould and the steel core bar, make the copper covered steel material base, become bar (line) material through the hot rolling wire drawing again, the steel core bar of this method needs through pickling, copper facing and radio-frequency preheating, its complex process, and contaminated environment; Moreover, by ingot mould and steel core bar heat absorption, temperature reduced soon because of copper flows through in the journey under water, copper water is effective cladding steel plug in the member bottom, thereby has a strong impact on its lumber recovery; The three does not form metallurgical binding between this method copper steel, and its composite quality is not high.
In the recent period, external also have producer to adopt hot dip coating method production of copper steel composite material, it is through surface treatment with steel bar, from bottom to top pass copper water, strict control copper coolant-temperature gage, strip temperature and steel bar hoisting velocity, allow copper be set on the steel bar, again through hot rolling, wire drawing becomes wire rod, and the difficulty of this method is the cooperation of copper coolant-temperature gage, strip temperature and steel bar hoisting velocity, and this requires automatic control degree height, thereby apparatus expensive, and compound thick copper layer product, also need carry out the secondary hot dip coating, thereby further improve cost.
The object of the present invention is to provide a kind of composite quality height, technology is simple, the isothermal welding method of the production of copper steel composite material that lumber recovery is high.
The present invention is achieved in that a kind of isothermal welding method of production of copper steel composite material, it is characterized in that: at first protective agent is added in the gap of the steel core bar of composite preform and outer wall, then the electrolysis copper billet is added in the hopper of composite preform; Composite preform after reinforced is put into the well-type electric furnace that has heated up, and be heated to 1130 ℃-1150 ℃, treat cathode copper all after the fusing, well-type electric furnace begins to cut off the power supply piecemeal from the bottom, makes composite preform be cooled to the air cooling of coming out of the stove below 1050 ℃ from end upstream sequence.
Protective agent of the present invention is salt or boric acid, as sodium chloride, potassium chloride, barium chloride.
Composite preform of the present invention is an outer wall of establishing steel core bar by interior, and the affixed hopper in outer wall top constitutes.
Even in order to guarantee the gap between steel core bar and the outer wall, be welded with positioning bar between outer wall and the steel core bar top; For the ease of composite preform is put into well-type electric furnace, be welded with suspension rod on the steel core bar top.
Composite preform after the present invention will feed in raw material hangs in heating in the well-type electric furnace that has heated up, and in heating process, protective agent at first melts and shields; Float to liquid level after the fusing of steel core bar surface oxidation iron; Cathode copper fusing back sinking is extruded the gap with the protective agent of fusing and is entered hopper; The steel core bar of copper liquid and equal temperature surface contact like this, because of time of contact longer relatively, have adequate condition to make between copper and the iron solid solution reaction take place, the formation solid solution layer.
Can continue after protective agent in the hopper of composite preform that the present invention adopts and copper material reclaim to use, its recovery can just be carried out in well-type electric furnace, does not need to add in addition to be equipped with.
The present invention has the following advantages:
1, equipment complex expense of the present invention is extremely low, and production site is little, and the construction period is short;
2, steel core bar of the present invention does not need pickling copper facing, its combination process easy operating;
3, copper liquid of the present invention contacts with the steel core bar surface of equal temperature, and time of contact is longer relatively, makes between copper and the steel solid solution reaction takes place, so the copper steel interface of composite is a metallurgical binding, its composite quality is good, the lumber recovery height;
4, same equipment complex, can produce round, square, flat, manage compound base, cooperate corresponding rolling wire-drawing equipment, can produce the compound circle of copper steel, square, flat, pipe, wire rod.
The invention will be further described below in conjunction with drawings and Examples:
The structural representation of Fig. 1, composite preform of the present invention;
The copper-steel composite material low power metallograph that Fig. 2, the present invention make;
The copper-steel composite material high power metallograph that Fig. 3, the present invention make;
The copper-steel composite material high power steel corrosion metallograph that Fig. 4, the present invention make.
Embodiment 1: one, preparation: make composite preform, referring to Fig. 1 as can be known: composite preform is an outer wall 2 of establishing steel core bar 1 by interior, the hopper 3 that outer wall 2 tops are affixed, and the suspension rod 4 on steel core bar 1 top, outer wall 2 constitutes with the positioning bar 5 of steel core bar 1 top welding.
Two, heating, fusing, cooling
At first solid-state granular sodium chloride is added in the composite preform gap, auxilliary again adding on a small quantity in the hopper,, then the electrolysis copper billet is added in the hopper to guarantee to flood steel core bar after the sodium chloride fusing.Composite preform after reinforced is hung in the well-type electric furnace that has heated up, be heated to 1150 ℃, in heating process, sodium chloride at first melts and shields; Float to liquid level after the fusing of steel core bar surface oxidation iron; Cathode copper fusing back sinking is extruded the gap with the protective agent of fusing and is entered hopper; The steel core bar of copper liquid and equal temperature surface contact like this, because of time of contact longer relatively, have adequate condition to make between copper and the iron solid solution reaction take place, the formation solid solution layer.After treating that cathode copper all melts, well-type electric furnace begins to cut off the power supply piecemeal from the bottom, makes composite preform be cooled to the air cooling of coming out of the stove below 1050 ℃ from end upstream sequence.
Three, peel off outer wall
With compound good material base, saw hopper, peel off the outer wall of composite preform again through mechanical means, hot rolling gets product.
This composite is again through the cold drawn wire rod that can be made into.
Referring to Fig. 2-4: low power, high power and the high power steel corrosion metallograph of the copper-steel composite material that makes from said method as can be seen, the copper steel interface is very clean, is not mingled with, defectives such as pore, crackle, copper has penetrated in the interface of steel, forms metallurgical binding.
Embodiment 2: this example as different from Example 1: the protective agent of employing is a barium chloride, and composite preform is put into well-type electric furnace and is warming up to 1130 ℃.
Embodiment 3: this example as different from Example 1: do not add the electrolysis copper billet in the hopper, but be heated to the copper melting temperature when above when composite preform and protective agent boric acid, Jiang Tongshui is poured in the gap of the steel core bar of composite preform and outer wall.
Claims (5)
1, a kind of isothermal welding method of production of copper steel composite material is characterized in that: at first protective agent is added in the gap of the steel core bar of composite preform and outer wall, then the electrolysis copper billet is added in the hopper of composite preform; Composite preform after reinforced is put into the well-type electric furnace that has heated up, and be heated to 1130 ℃-1150 ℃, treat cathode copper all after the fusing, well-type electric furnace begins to cut off the power supply piecemeal from the bottom, makes composite preform be cooled to the air cooling of coming out of the stove below 1050 ℃ from end upstream sequence.
2, the isothermal welding method of production of copper steel composite material as claimed in claim 1 is characterized in that: described protective agent is boric acid or salt.
3, production of copper steel composite material as claimed in claim 2 wait until warm burning-on method, it is characterized in that: described salt or sodium chloride, or potassium chloride, or barium chloride.
4, the isothermal welding method of production of copper steel composite material as claimed in claim 1 is characterized in that: described composite preform is an outer wall (2) of establishing steel core bar (1) by interior, and the affixed hopper (3) in outer wall (2) top constitutes.
5, as the isothermal welding method of claim 1,4 described production of copper steel composite materials, it is characterized in that: be welded with positioning bar (5) between outer wall of described composite preform (2) and steel core bar (1) top; Be welded with suspension rod (4) on steel core bar (1) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01107029 CN1131119C (en) | 2001-01-10 | 2001-01-10 | Isothermal welding method for producing copper-steel composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01107029 CN1131119C (en) | 2001-01-10 | 2001-01-10 | Isothermal welding method for producing copper-steel composite material |
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| Publication Number | Publication Date |
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| CN1364673A true CN1364673A (en) | 2002-08-21 |
| CN1131119C CN1131119C (en) | 2003-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 01107029 Expired - Fee Related CN1131119C (en) | 2001-01-10 | 2001-01-10 | Isothermal welding method for producing copper-steel composite material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195157B (en) * | 2007-12-08 | 2010-06-02 | 沂源县源通机械有限公司 | Technique for processing alloying material of steel and copper |
| CN103878360A (en) * | 2013-12-20 | 2014-06-25 | 柳州市柳港激光科技有限公司 | Alloy coating paste for manufacturing steel back pure copper lining composite conductive tile |
| 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 |
| CN110434315A (en) * | 2019-07-29 | 2019-11-12 | 贵州鼎成熔鑫科技有限公司 | The heating of steel copper bi-metal cylinder body founding, cooling means |
-
2001
- 2001-01-10 CN CN 01107029 patent/CN1131119C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195157B (en) * | 2007-12-08 | 2010-06-02 | 沂源县源通机械有限公司 | Technique for processing alloying material of steel and copper |
| CN103878360A (en) * | 2013-12-20 | 2014-06-25 | 柳州市柳港激光科技有限公司 | Alloy coating paste for manufacturing steel back pure copper lining composite conductive tile |
| 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 |
| CN110434315A (en) * | 2019-07-29 | 2019-11-12 | 贵州鼎成熔鑫科技有限公司 | The heating of steel copper bi-metal cylinder body founding, cooling means |
| CN110434315B (en) * | 2019-07-29 | 2021-11-16 | 贵州鼎成熔鑫科技有限公司 | Heating and cooling method for casting steel-copper bimetal cylinder |
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| Publication number | Publication date |
|---|---|
| CN1131119C (en) | 2003-12-17 |
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Granted publication date: 20031217 Termination date: 20110110 |