CN102049664A - Preparation method of copper-clad steel bimetal composite rod - Google Patents
Preparation method of copper-clad steel bimetal composite rod Download PDFInfo
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- CN102049664A CN102049664A CN2009102370712A CN200910237071A CN102049664A CN 102049664 A CN102049664 A CN 102049664A CN 2009102370712 A CN2009102370712 A CN 2009102370712A CN 200910237071 A CN200910237071 A CN 200910237071A CN 102049664 A CN102049664 A CN 102049664A
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- copper
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- copper tube
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Abstract
The invention relates to a preparation method of a copper-clad steel bimetal composite rod, belonging to the technical field of bimetal composite material preparation. The preparation method comprises the following steps of: (1) using a steel rod and a copper tube as raw materials; (2) carrying out the pretreatment of deoiling, derusting and drying on the steel rod and the copper tube; (3) rolling the head of the steel bar by a head rolling machine; (4) inserting the steel bar into the copper tube, carrying out the composite head rolling treatment by the head rolling machine; and (5) carrying out 2-3 passes of composite drawing to obtain the copper-clad steel bimetal composite rod. The method has the characteristics of simple process, high efficiency and low cost. The copper-clad steel bimetal composite rod prepared with the method has stable bonding performance in the copper-steel surface and great surface quality.
Description
Technical field
The present invention relates to a kind of preparation method of copper covered steel bimetallic compound bar, belong to the double metallic composite material preparing technical field.
Background technology
Copper covered steel double metallic composite material (rod and bandlet etc.), outer clad material is a copper, inner layer material is a steel, requires between copper steel in conjunction with good.This material has the good corrosion-resistant and excellent conductive performance of copper, has the strength and stiffness of steel again, is good grounding material, uses wide in electric power and lightning protection engineering.At present, copper covered steel compound bar and bandlet etc., main preparation technology has galvanoplastic, jacket extrusion etc.Galvanoplastic are polluted big energy consumption height, and copper layer thickness is limited; The jacket extrusion, the cost height, material loss is big.
Summary of the invention
The purpose of this invention is to provide that a kind of production technology is easy, high efficiency, copper covered steel bimetallic compound bar processing method that cost is low, the copper covered steel bimetallic compound bar interfacial combined function of this technology preparation is stable, surface quality is good.
For achieving the above object, the present invention takes following technical scheme:
A kind of preparation method of copper covered steel bimetallic compound bar comprises the steps:
1. use rod iron and copper tube to be raw material;
2. rod iron, copper tube are carried out oil removing, rust cleaning and dry preliminary treatment;
3. rod iron is driven away head and handles driving away on the machine;
4. rod iron is inserted copper tube, carry out the compound head that drives away on the machine again and handle driving away;
5. carry out the compound drawing of 2～3 passages, promptly obtain copper covered steel bimetallic compound bar.
A kind of optimal technical scheme is characterized in that: described step 1. in, described rod iron is the rod iron of normal carbon structure; Described copper tube be copper content at the T2 copper tube more than 99.90%, the copper tube internal diameter is than the big 0.5mm～1mm of rod iron diameter, the copper pipe wall thickness is 1mm～2mm.
A kind of optimal technical scheme is characterized in that: described step 2. in, oil removing, rust cleaning and dry pretreated concrete steps are: at 80 ℃～100 ℃, concentration is in the NaOH solution of 30～50g/L, keeps thermokalite eccysis oil 8～10 minutes; In the watery hydrochloric acid 3%～5% (volume by volume concentration), kept 5～6 minutes, acid pickling and rust removing carries out the hot water rinsing then, dries processing at last, and bake out temperature is 80 ℃～100 ℃, and drying time is 30 minutes.
A kind of optimal technical scheme is characterized in that: described step 3. in, the length of rod iron one end 100mm～200mm is driven away head and is handled driving away on the machine, the part that rod iron drives head away should keep straight, even.
A kind of optimal technical scheme is characterized in that: described step 5. in, the 1st passes of drawing deflection is that the 15%～25%, the 2nd passage or the 3rd passes of drawing deflection are 10%～20%.
A kind of optimal technical scheme is characterized in that: described step 5. in, the mixture that adopts castor oil and machine oil in the described compound drawing process is as lubricant, wherein the volume ratio of castor oil is 10%～30%, the good lubrication of maintenance overall process.
Advantage of the present invention is: the invention provides the method that a kind of compound drawing prepares copper covered steel bimetallic compound bar, this method has the advantages that technology is easy, efficient is high, cost is low.Adopt the copper covered steel bimetallic compound bar copper steel interfacial combined function of this process preparation stable, surface quality is good.
The present invention will be further described below by the drawings and specific embodiments, but and do not mean that limiting the scope of the invention.
The specific embodiment
Embodiment 1
Raw material: A3 rod iron, size φ 22mm * 1000mm; T2 copper tube (copper content is more than 99.90%), φ
Outward25mm * 1mm * 1000mm.
Rod iron and copper tube are placed NaOH solution (concentration is 30g/L) alkaline bath, be heated to 80 ℃, kept thermokalite eccysis oil 8～10 minutes.Then rod iron is placed the descaling bath of 4% watery hydrochloric acid (volume by volume concentration) solution, kept acid pickling and rust removing 5～6 minutes.After the rust cleaning, carry out the hot water rinsing.Oven dry at last, bake out temperature is 100 ℃, drying time is 30 minutes.The surface of rod iron and copper tube is kept clean, dry status.
The long 150mm of rod iron one end is driven away head and handles driving away on the machine, be of a size of φ 16mm after driving head away.Rod iron is inserted the copper tube of equal length, and copper pipe entangles behind the rod iron driving away and carries out the compound head that drives away on the machine and handle, and makes the copper pipe that drives away behind the head evenly closely entangle rod iron, is of a size of φ 17mm after driving head away.
Carry out compound drawing on the chain-type cold drawing machine of 10T, first passage is drawn to φ 22mm (ε=22.5%) from φ 25mm; Second passage is drawn to φ 20mm (ε=17.4%) from φ 22mm; The 3rd passage is drawn to φ 19mm (ε=10%) from φ 20mm.The mixture (wherein the volume ratio of castor oil is 20%) that adopts castor oil and machine oil in compound drawing process keeps the good lubrication of overall process as lubricant.Obtain φ 19mm * 1700mm at last, the copper clad layer thickness is the copper covered steel bimetallic compound bar of 0.6mm.The copper covered steel compound bar is straight, and copper steel is in conjunction with densification, and the copper top layer is smooth.
Embodiment 2
Raw material: A3 rod iron, size φ 19.5mm * 2000mm; T2 copper tube (copper content is more than 99.90%), φ
Outward22mm * 1mm * 2000mm.
Rod iron and copper tube are placed NaOH solution (concentration is 40g/L) alkaline bath, be heated to 100 ℃, kept thermokalite eccysis oil 8～10 minutes.Then rod iron is placed the descaling bath of 3% watery hydrochloric acid (volume by volume concentration) solution, kept acid pickling and rust removing 5～6 minutes.After the rust cleaning, carry out the hot water rinsing.Oven dry at last, bake out temperature is 100 ℃, drying time is 30 minutes.The surface of rod iron and copper tube is kept clean, dry status.
The long 200mm of rod iron one end is driven away head and handles driving away on the machine, be of a size of φ 15mm after driving head away.Rod iron is inserted the copper tube of equal length, and copper pipe entangles behind the rod iron driving away and carries out the compound head that drives away on the machine and handle, and makes the copper pipe that drives away behind the head evenly closely entangle rod iron, is of a size of φ 16mm after driving head away.
Carry out compound drawing on the chain-type cold drawing machine of 10T, first passage is drawn to φ 20mm (ε=22.5%) from φ 22mm; Second passage is drawn to φ 18mm (ε=19%) from φ 20mm; The 3rd passage is drawn to φ 17mm (ε=11%) from φ 18mm.The mixture (wherein the volume ratio of castor oil is 10%) that adopts castor oil and machine oil in compound drawing process keeps the good lubrication of overall process as lubricant.Obtain φ 17mm * 3300mm at last, the copper clad layer thickness is the copper covered steel bimetallic compound bar of 0.7mm.The copper covered steel compound bar is straight, and copper steel is in conjunction with densification, and the copper top layer is smooth.
Embodiment 3
Raw material: A3 rod iron, size φ 15mm * 2000mm; T2 copper tube (copper content is more than 99.90%), φ
Outward20mm * 2mm * 2000mm.
Rod iron and copper tube are placed NaOH solution (concentration is 50g/L) alkaline bath, be heated to 100 ℃, kept thermokalite eccysis oil 8～10 minutes.Then rod iron is placed the descaling bath of 5% watery hydrochloric acid (volume by volume concentration) solution, kept acid pickling and rust removing 5～6 minutes.After the rust cleaning, carry out the hot water rinsing.Oven dry at last, bake out temperature is 80 ℃, drying time is 30 minutes.The surface of rod iron and copper tube is kept clean, dry status.
The long 100mm of rod iron one end is driven away head and handles driving away on the machine, be of a size of φ 10mm after driving head away.Rod iron is inserted the copper tube of equal length, and copper pipe entangles behind the rod iron driving away and carries out the compound head that drives away on the machine and handle, and makes the copper pipe that drives away behind the head evenly closely entangle rod iron, is of a size of φ 14mm after driving head away.
Carry out compound drawing on the chain-type cold drawing machine of 10T, first passage is drawn to φ 18mm (ε=19%) from φ 20mm; Second passage is drawn to φ 16.5mm (ε=16%) from φ 18mm; The 3rd passage is drawn to φ 15.5mm (ε=12%) from φ 16.5mm.The mixture (wherein the volume ratio of castor oil is 30%) that adopts castor oil and machine oil in compound drawing process keeps the good lubrication of overall process as lubricant.Obtain φ 15.5mm * 3200mm at last, the copper clad layer thickness is the copper covered steel bimetallic compound bar of 1.4mm.The copper covered steel compound bar is straight, and copper steel is in conjunction with densification, and the copper top layer is smooth.
Claims (6)
1. the preparation method of a copper covered steel bimetallic compound bar comprises the steps:
1. use rod iron and copper tube to be raw material;
2. rod iron, copper tube are carried out oil removing, rust cleaning and dry preliminary treatment;
3. rod iron is driven away head and handles driving away on the machine;
4. rod iron is inserted copper tube, carry out the compound head that drives away on the machine again and handle driving away;
5. carry out the compound drawing of 2～3 passages, promptly obtain copper covered steel bimetallic compound bar.
2. the preparation method of copper covered steel bimetallic compound bar according to claim 1 is characterized in that: described step 1. in, described rod iron is the rod iron of carbon structure; Described copper tube be copper content at the T2 copper tube more than 99.90%, the copper tube internal diameter is than the big 0.5mm～1mm of rod iron diameter, the copper pipe wall thickness is 1mm～2mm.
3. the preparation method of copper covered steel bimetallic compound bar according to claim 1, it is characterized in that: described step 2. in, oil removing, rust cleaning and dry pretreated concrete steps are: at 80 ℃～100 ℃, concentration is in the NaOH solution of 30～50g/L, kept thermokalite eccysis oil 8～10 minutes; In the watery hydrochloric acid 3%～5% (volume by volume concentration), kept 5～6 minutes, acid pickling and rust removing carries out the hot water rinsing then, dries processing at last, and bake out temperature is 80 ℃～100 ℃, and drying time is 30 minutes.
4. the preparation method of copper covered steel bimetallic compound bar according to claim 1 is characterized in that: described step 3. in, the length of rod iron one end 100mm～200mm is driven away head and is handled driving away on the machine.
5. the preparation method of copper covered steel bimetallic compound bar according to claim 1 is characterized in that: described step 5. in, the 1st passes of drawing deflection is that the 15%～25%, the 2nd passage or the 3rd passes of drawing deflection are 10%～20%.
6. the preparation method of copper covered steel bimetallic compound bar according to claim 1 is characterized in that: described step 5. in, the mixture that adopts castor oil and machine oil in the described compound drawing process is as lubricant.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102370712A CN102049664A (en) | 2009-11-03 | 2009-11-03 | Preparation method of copper-clad steel bimetal composite rod |
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| CN2009102370712A CN102049664A (en) | 2009-11-03 | 2009-11-03 | Preparation method of copper-clad steel bimetal composite rod |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043675A (en) * | 2014-06-18 | 2014-09-17 | 谢光玉 | Preparation method of aluminium alloy/stainless steel bimetal composite tube |
| CN104138923A (en) * | 2014-07-03 | 2014-11-12 | 北京科技大学 | Drawing forming method of two-metal layered composite wire |
| CN104148438A (en) * | 2014-07-03 | 2014-11-19 | 北京科技大学 | Preparation method of metal layered composite material by multi-head sleeve drawing composition |
| CN104325747A (en) * | 2014-11-24 | 2015-02-04 | 芜湖鑫力管道技术有限公司 | Copper-clad steel composite rod and production method thereof |
| CN104475478A (en) * | 2014-10-22 | 2015-04-01 | 宝鸡市盛科新金属有限责任公司 | Novel preparing method of multi-metal compounded bar with irregular cross section shape |
| CN104801931A (en) * | 2015-04-11 | 2015-07-29 | 西北有色金属研究院 | Preparation method of copper-coated stainless steel metal composite rod with low leakage rate |
| CN105750356A (en) * | 2016-04-22 | 2016-07-13 | 罗奕兵 | Preparation method of silver clad aluminum composite filament |
| CN111416220A (en) * | 2020-04-20 | 2020-07-14 | 广德克莱德新材料技术有限公司 | Copper-clad steel grounding rod, manufacturing method thereof and lightning protection grounding device |
| CN111430946A (en) * | 2020-04-20 | 2020-07-17 | 广德克莱德新材料技术有限公司 | Connector, manufacturing method thereof and lightning protection grounding device with connector |
-
2009
- 2009-11-03 CN CN2009102370712A patent/CN102049664A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043675A (en) * | 2014-06-18 | 2014-09-17 | 谢光玉 | Preparation method of aluminium alloy/stainless steel bimetal composite tube |
| CN104148438B (en) * | 2014-07-03 | 2016-01-20 | 北京科技大学 | A kind of layered metal composite material bull sleeve drawing composite preparation process |
| CN104138923A (en) * | 2014-07-03 | 2014-11-12 | 北京科技大学 | Drawing forming method of two-metal layered composite wire |
| CN104148438A (en) * | 2014-07-03 | 2014-11-19 | 北京科技大学 | Preparation method of metal layered composite material by multi-head sleeve drawing composition |
| CN104138923B (en) * | 2014-07-03 | 2016-03-02 | 北京科技大学 | A kind of bimetallic stratiform composite wire drawing forming method |
| CN104475478B (en) * | 2014-10-22 | 2016-08-17 | 宝鸡市盛科新金属有限责任公司 | Many metal composite and the preparation method of the irregular bar of cross sectional shape |
| CN104475478A (en) * | 2014-10-22 | 2015-04-01 | 宝鸡市盛科新金属有限责任公司 | Novel preparing method of multi-metal compounded bar with irregular cross section shape |
| CN104325747A (en) * | 2014-11-24 | 2015-02-04 | 芜湖鑫力管道技术有限公司 | Copper-clad steel composite rod and production method thereof |
| CN104801931A (en) * | 2015-04-11 | 2015-07-29 | 西北有色金属研究院 | Preparation method of copper-coated stainless steel metal composite rod with low leakage rate |
| CN104801931B (en) * | 2015-04-11 | 2017-01-11 | 西北有色金属研究院 | Preparation method of copper-coated stainless steel metal composite rod with low leakage rate |
| CN105750356A (en) * | 2016-04-22 | 2016-07-13 | 罗奕兵 | Preparation method of silver clad aluminum composite filament |
| CN111416220A (en) * | 2020-04-20 | 2020-07-14 | 广德克莱德新材料技术有限公司 | Copper-clad steel grounding rod, manufacturing method thereof and lightning protection grounding device |
| CN111430946A (en) * | 2020-04-20 | 2020-07-17 | 广德克莱德新材料技术有限公司 | Connector, manufacturing method thereof and lightning protection grounding device with connector |
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Application publication date: 20110511 |