CN102658452B - Processing method of copper strip used for copper steel composites - Google Patents
Processing method of copper strip used for copper steel composites Download PDFInfo
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- CN102658452B CN102658452B CN201110364184.6A CN201110364184A CN102658452B CN 102658452 B CN102658452 B CN 102658452B CN 201110364184 A CN201110364184 A CN 201110364184A CN 102658452 B CN102658452 B CN 102658452B
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Abstract
A processing method of a copper strip used for copper steel composites is provided, which makes the copper strip used for copper steel composites to obtain: a tensile strength Rm of less than or equal to 270 MPa, a grain size of more than or equal to 0.05 mm, an elongation A11.3 of more than or equal to 30%, and a hardness HV of less than or equal to 65, resolving the problem of exceeding of performance requirement of the state standard, strict surface requirement and process difficulty; and by strict control of plate shape and shearing, the first copper strip for copper steel composites with a specification of (0.15-0.2)*(310-610) in China is produced, which can meet an ever-increasing requirement on high performance in electric appliance and decoration product industry. The method comprises the following steps accomplished in order: proportioning, fusion casting, sawing, hot rolling, face milling, rough rolling, edge shearing, annealing before medium rolling, medium rolling, annealing before finished rolling, finished rolling, cleaning, tension leveling, finished annealing, finished shearing, packing and warehousing. The method is simple in technology and easy in process, so that working efficiency and product quality are effectively improved, labor, time and massive energy are saved, and production cost is reduced. Besides, the method is easy to popularize.
Description
Technical field
The present invention relates to copper strips technological method for processing, the laminating copper strips technological method for processing of using of especially a kind of copper steel.
Background technology
At present, the laminating band of copper steel is the laminating a kind of product of steel and copper, the laminating material of copper steel has merged the feature of two kinds of metals, there is the advantages such as rotproofness, mouldability, extensibility, electric conductivity, weldability and the color of non-ferrous metal be attractive in appearance, also possessing the intensity that carbon steel is good, is the splendid product of instead of copper carrying material.This material is the substitute of the nonferrous materials of part industry use at present, and material cost can reduce by 50%.The laminating material of copper steel, because intensity is high, indeformable, excellent conductivity, can strengthen arc extinguishing ability, has effectively improved the combination property of electrical equipment and decorative product.The laminating band of copper steel is to adopt the performance of copper, the price of steel, so approved by market very much, copper steel laminating band demand in market is larger.And copper strips used requires very high to performance, surface, template and quality of edges in the laminating band of copper steel, tensile strength, hardness and grain size all exceed common copper alloy national standard scope, therefore, the laminating production difficulty with copper strips of copper steel is very large, and production technology is difficult to control and is stable.
The general soft state national standard of H65 brass band is tensile strength Rm>=290N/mm
2; Percentage elongation A11.3>=40%; Hardness HV≤90; Without grain size requirement.Copper steel is laminating very high to performance, surface and quality of edges requirement with copper strips, and tensile strength, hardness and grain size all exceed national standard scope, tensile strength Rm≤270N/mm
2; Grain size>=0.05mm; Percentage elongation A11.3>=30%; Hardness HV≤65, reach this performance, and production process be difficult to be controlled, and particularly finished product annealing process and annealing way are more difficult gropes, and because material is partially soft, must control template well, otherwise shear, easily cause copper strip surface to occur creasing, and shearing cannot be carried out.Copper strip surface requires tighter, after copper strips and steel are laminating, will be rolled, and finally makes copper strips thickness roll 0.02mm, and as copper strip surface has any defect, the laminating rear operation of rolling of copper steel just there will be copper strip surface bleed-out, and the laminating band of copper steel is scrapped.
In view of the foregoing, the production technology of the laminating band of copper steel needs to improve.
Summary of the invention
The object of the invention is in order to overcome deficiency of the prior art, provide a kind of copper steel the laminating copper strips technological method for processing of using, make that copper steel is laminating easily to be reached with copper strips: tensile strength Rm≤270MPa, grain size >=0.05mm, percentage elongation A11.3 >=30%, hardness HV≤65, solved the performance requirement that exceeds national standard, a difficult problem for the tight and processing difficulties of surface requirements, by strict control template and shearing, realizing processing and fabricating, to go out domestic first (0.15～0.2) * (310-610) copper steel of mm specification laminating with copper strips, adapt to the high performance demands that electrical equipment and decorative product industry constantly promote.
The present invention to achieve these goals, adopts following technical scheme:
The laminating copper strips technological method for processing of using of copper steel, be by: batching → founding → sawing → hot rolling → milling face → roughing → cut limit → in roll front annealing → in before the rolling of roll → finished product annealing → finished product rolling → cleanings → stretch bending rectify → finished products → finished product shear → pack to put in storage and complete successively; Concrete processing technology step is carried out successively as follows:
(1) batching: the laminating component content with copper strips of copper steel is configured to by weight percentage: copper Cu63.5%～66.5%, iron Fe≤0.1%, plumbous Pb≤0.03%, nickel≤0.5%, surplus is zinc Zn, inevitable impurity < 0.3%, each component sum is absolutely;
(2) founding: in having core line frequency furnace, carry out melting, during melting with ammeter balancing point or melt flame as the sign of coming out of the stove; In fusion process, adopt charcoal to cover melt liquid level in stove, cladding thickness 100～150mm; When preparing to holding furnace converter, in smelting furnace, after melt flame 2～3 times, proceed to again holding furnace; After smelting furnace flame completes, the copper liquid melting in smelting furnace is proceeded to holding furnace; In holding furnace, melt is heated, and adopt charcoal to cover melt, cladding thickness 150～200mm; In holding furnace, melt occurs after flame, and copper liquid flows into crystallizer through cast tubes and casts, and casting process is used vibrational casting; By semicontinuous casting machine, copper sheathing crystallizer, cast; During casting, adopt appropriate borax as flux, melt in crystallizer to be covered; Casting speed 8.0-10.0m/h; Cooling water pressure 80～100Kpa; Thereby formation ingot casting;
(3) sawing: press Len req sawing ingot casting on sawing machine;
(4) hot rolling: carry out ingot casting heating by walking beam furnace, 860 ℃～900 ℃ of heating-up temperatures; On equipment of hot rolling, carry out ingot formation hot rolling, hot-rolled billet general working rate >=90%;
(5) milling face: carry out made-up belt milling face on Double Milling milling machine;
(6) roughing: on roughing mill, the made-up belt after milling face is carried out to roughing;
(7) cut limit: on shearing equipment, the made-up belt after roughing is cut to limit;
(8) in, roll front annealing: on annealing furnace, the made-up belt of cutting behind limit is carried out to intermediate annealing, adopt cover annealing, 480 ℃～580 ℃ of annealing temperatures, annealing time 5～8 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(9) in, roll: with in milling train the made-up belt after trimming annealing is rolled to front one thickness to finished product;
(10) annealing before finished product rolling: the copper strips after rolling with through type light air cushion annealing furnace centering is annealed; 650 ℃～720 ℃ of annealing temperatures, 22～28 ms/min of Negotiation speeds, adopt purity nitrogen atmosphere to protect in annealing;
(11) finished product rolling: with finishing mill to finished product rolling before annealing after made-up belt carry out finish rolling to finished product copper strips;
(12) clean: finished product copper strips carries out surperficial degreasing and passivation, and passivating solution is the phenylpropyl alcohol triazole of mass ratio 2 ‰～3 ‰, and surplus is deionized water; Operating temperature remains on 65 ℃～75 ℃;
(13) stretch bending is rectified: finished product copper strips is carried out to template leveling and reparation, and copper strips adopts small tension receiving coil 100Kg-200Kg to batch;
(14) finished products: for guaranteeing properties of product, adopt cover annealing, use special-purpose convection disc temper remover, 520 ℃～610 ℃ of annealing temperatures, annealing time 7～8 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(15) finished product is sheared: with uncoiling, without tension force shearing equipment, finished product copper strips is sheared by contract dimensional requirement;
(16) packing warehouse-in: finished product copper strips is packed warehouse-in through after the assay was approved.
The laminating copper strips technological method for processing of using of copper steel, be by: batching → founding → sawing → hot rolling → milling face → roughing → cut limit → in roll front annealing → in before the rolling of roll → finished product annealing → finished product rolling → cleanings → stretch bending rectify → finished products → finished product shear → pack to put in storage and complete successively; Concrete processing technology step is carried out successively as follows:
(1) batching: the laminating component content with copper strips of copper steel is configured to by weight percentage: copper Cu65%, iron Fe0.08%, plumbous Pb0.02%, nickel 0.3%, surplus is zinc Zn, each component sum is absolutely;
(2) founding: in having core line frequency furnace, carry out melting, during melting with ammeter balancing point or melt flame as the sign of coming out of the stove; In fusion process, adopt charcoal to cover melt liquid level in stove, cladding thickness 130mm; When preparing to holding furnace converter, in smelting furnace, after melt flame 3 times, proceed to again holding furnace; After smelting furnace flame completes, the copper liquid melting in smelting furnace is proceeded to holding furnace; In holding furnace, melt is heated, and adopt charcoal to cover melt, cladding thickness 180mm; In holding furnace, melt occurs after flame, and copper liquid flows into crystallizer through cast tubes and casts, and casting process is used vibrational casting; By semicontinuous casting machine, copper sheathing crystallizer, cast; During casting, adopt appropriate borax as flux, melt in crystallizer to be covered; Casting speed 9.0m/h; Cooling water pressure 90Kpa; Thereby formation ingot casting;
(3) sawing: press Len req sawing ingot casting on sawing machine;
(4) hot rolling: carry out ingot casting heating by walking beam furnace, 880 ℃ of heating-up temperatures; On equipment of hot rolling, carry out ingot formation hot rolling, hot-rolled billet general working rate 93%;
(5) milling face: carry out made-up belt milling face on Double Milling milling machine;
(6) roughing: on roughing mill, the made-up belt after milling face is carried out to roughing;
(7) cut limit: on shearing equipment, the made-up belt after roughing is cut to limit;
(8) in, roll front annealing: on annealing furnace, the made-up belt of cutting behind limit is carried out to intermediate annealing, adopt cover annealing, 530 ℃ of annealing temperatures, annealing time 6.5 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(9) in, roll: with in milling train the made-up belt after trimming annealing is rolled to front one thickness to finished product;
(10) annealing before finished product rolling: the copper strips after rolling with through type light air cushion annealing furnace centering is annealed; 685 ℃ of annealing temperatures, 25 ms/min of Negotiation speeds, adopt purity nitrogen atmosphere to protect in annealing;
(11) finished product rolling: with finishing mill to finished product rolling before annealing after made-up belt carry out finish rolling to finished product copper strips;
(12) clean: finished product copper strips carries out surperficial degreasing and passivation, and passivating solution is the phenylpropyl alcohol triazole of mass ratio 2.5 ‰, and surplus is deionized water; Operating temperature remains on 70 ℃;
(13) stretch bending is rectified: finished product copper strips is carried out to template leveling and reparation, and copper strips adopts small tension receiving coil 150Kg to batch;
(14) finished products: for guaranteeing properties of product, adopt cover annealing, use special-purpose convection disc temper remover, 560 ℃ of annealing temperatures, annealing time 7.5 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(15) finished product is sheared: with uncoiling, without tension force shearing equipment, finished product copper strips is sheared by contract dimensional requirement;
(16) packing warehouse-in: finished product copper strips is packed warehouse-in through after the assay was approved.
The laminating copper strips technological method for processing of using of copper steel, be by: batching → founding → sawing → hot rolling → milling face → roughing → cut limit → in roll front annealing → in before the rolling of roll → finished product annealing → finished product rolling → cleanings → stretch bending rectify → finished products → finished product shear → pack to put in storage and complete successively; Concrete processing technology step is carried out successively as follows:
(1) batching: the laminating component content with copper strips of copper steel is configured to by weight percentage: copper Cu66.5%, iron Fe0.1%, plumbous Pb0.03%, nickel 0.5%, surplus is zinc Zn, each component sum is absolutely;
(2) founding: in having core line frequency furnace, carry out melting, during melting with ammeter balancing point or melt flame as the sign of coming out of the stove; In fusion process, adopt charcoal to cover melt liquid level in stove, cladding thickness 150mm; When preparing to holding furnace converter, in smelting furnace, after melt flame 3 times, proceed to again holding furnace; After smelting furnace flame completes, the copper liquid melting in smelting furnace is proceeded to holding furnace; In holding furnace, melt is heated, and adopt charcoal to cover melt, cladding thickness 200mm; In holding furnace, melt occurs after flame, and copper liquid flows into crystallizer through cast tubes and casts, and casting process is used vibrational casting; By semicontinuous casting machine, copper sheathing crystallizer, cast; During casting, adopt appropriate borax as flux, melt in crystallizer to be covered; Casting speed 10.0m/h; Cooling water pressure 100Kpa; Thereby formation ingot casting;
(3) sawing: press Len req sawing ingot casting on sawing machine;
(4) hot rolling: carry out ingot casting heating by walking beam furnace, 900 ℃ of heating-up temperatures; On equipment of hot rolling, carry out ingot formation hot rolling, hot-rolled billet general working rate 95%;
(5) milling face: carry out made-up belt milling face on Double Milling milling machine;
(6) roughing: on roughing mill, the made-up belt after milling face is carried out to roughing;
(7) cut limit: on shearing equipment, the made-up belt after roughing is cut to limit;
(8) in, roll front annealing: on annealing furnace, the made-up belt of cutting behind limit is carried out to intermediate annealing, adopt cover annealing, 580 ℃ of annealing temperatures, annealing time 8 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(9) in, roll: with in milling train the made-up belt after trimming annealing is rolled to front one thickness to finished product;
(10) annealing before finished product rolling: the copper strips after rolling with through type light air cushion annealing furnace centering is annealed; 720 ℃ of annealing temperatures, 28 ms/min of Negotiation speeds, adopt purity nitrogen atmosphere to protect in annealing;
(11) finished product rolling: with finishing mill to finished product rolling before annealing after made-up belt carry out finish rolling to finished product copper strips;
(12) clean: finished product copper strips carries out surperficial degreasing and passivation, and passivating solution is the phenylpropyl alcohol triazole of mass ratio 3 ‰, and surplus is deionized water; Operating temperature remains on 75 ℃;
(13) stretch bending is rectified: finished product copper strips is carried out to template leveling and reparation, and copper strips adopts small tension receiving coil 200Kg to batch;
(14) finished products: for guaranteeing properties of product, adopt cover annealing, use special-purpose convection disc temper remover, 610 ℃ of annealing temperatures, annealing time 8 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(15) finished product is sheared: with uncoiling, without tension force shearing equipment, finished product copper strips is sheared by contract dimensional requirement;
(16) packing warehouse-in: finished product copper strips is packed warehouse-in through after the assay was approved.
The laminating copper strips technological method for processing of using of copper steel, be by: batching → founding → sawing → hot rolling → milling face → roughing → cut limit → in roll front annealing → in before the rolling of roll → finished product annealing → finished product rolling → cleanings → stretch bending rectify → finished products → finished product shear → pack to put in storage and complete successively; Concrete processing technology step is carried out successively as follows:
(1) batching: the laminating component content with copper strips of copper steel is configured to by weight percentage: copper Cu63.5%, iron Fe0.08%, plumbous Pb0.02%, nickel 0.35%, surplus is zinc Zn, each component sum is absolutely;
(2) founding: in having core line frequency furnace, carry out melting, during melting with ammeter balancing point or melt flame as the sign of coming out of the stove; In fusion process, adopt charcoal to cover melt liquid level in stove, cladding thickness 100mm; When preparing to holding furnace converter, in smelting furnace, after melt flame 2 times, proceed to again holding furnace; After smelting furnace flame completes, the copper liquid melting in smelting furnace is proceeded to holding furnace; In holding furnace, melt is heated, and adopt charcoal to cover melt, cladding thickness 150mm; In holding furnace, melt occurs after flame, and copper liquid flows into crystallizer through cast tubes and casts, and casting process is used vibrational casting; By semicontinuous casting machine, copper sheathing crystallizer, cast; During casting, adopt appropriate borax as flux, melt in crystallizer to be covered; Casting speed 8.0m/h; Cooling water pressure 80Kpa; Thereby formation ingot casting;
(3) sawing: press Len req sawing ingot casting on sawing machine;
(4) hot rolling: carry out ingot casting heating by walking beam furnace, 860 ℃ of heating-up temperatures; On equipment of hot rolling, carry out ingot formation hot rolling, hot-rolled billet general working rate 90%;
(5) milling face: carry out made-up belt milling face on Double Milling milling machine;
(6) roughing: on roughing mill, the made-up belt after milling face is carried out to roughing;
(7) cut limit: on shearing equipment, the made-up belt after roughing is cut to limit;
(8) in, roll front annealing: on annealing furnace, the made-up belt of cutting behind limit is carried out to intermediate annealing, adopt cover annealing, 480 ℃ of annealing temperatures, annealing time 5 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(9) in, roll: with in milling train the made-up belt after trimming annealing is rolled to front one thickness to finished product;
(10) annealing before finished product rolling: the copper strips after rolling with through type light air cushion annealing furnace centering is annealed; 650 ℃ of annealing temperatures, 22 ms/min of Negotiation speeds, adopt purity nitrogen atmosphere to protect in annealing;
(11) finished product rolling: with finishing mill to finished product rolling before annealing after made-up belt carry out finish rolling to finished product copper strips;
(12) clean: finished product copper strips carries out surperficial degreasing and passivation, and passivating solution is the phenylpropyl alcohol triazole of mass ratio 2 ‰, and surplus is deionized water; Operating temperature remains on 65 ℃;
(13) stretch bending is rectified: finished product copper strips is carried out to template leveling and reparation, and copper strips adopts small tension receiving coil 100Kg to batch;
(14) finished products: for guaranteeing properties of product, adopt cover annealing, use special-purpose convection disc temper remover, 520 ℃ of annealing temperatures, annealing time 7 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(15) finished product is sheared: with uncoiling, without tension force shearing equipment, finished product copper strips is sheared by contract dimensional requirement;
(16) packing warehouse-in: finished product copper strips is packed warehouse-in through after the assay was approved.
The invention has the beneficial effects as follows: method is simple, processing technology is easy, has effectively improved the quality of operating efficiency and product, saving of labor, saves time, and saves mass energy, reduces production costs, and is convenient to promote.
Copper alloy component of the present invention form in Cu and Zn be basic metallic element, Zn adds the cost that has reduced alloy; Alloy has enough mechanical strengths and processing performance, is golden colour lustre.
2. intermediate annealing operation has adopted clock hood type furnace and the annealing of slick style air cushion furnace simultaneously, can increase the stability of material; Meet the processing of follow-up copper strips, finished products has been played to the effect of stable performance and even tissue.
3. finished product rolling adopts last little working modulus (5-10) % and small tension receiving coil (100-200) Kg rolling together, controls thickness deviation and template.
4. stretch bending is rectified the copper strips before finished products is carried out to template aligning and reparation, avoids the high copper strips burning that causes of the thin annealing temperature of copper strips sticky.
5. finished products, for guaranteeing properties of product, is used special-purpose convection disc temper remover, at bell furnace high annealing, has avoided copper belt part nest limit to burn sticky.Finished products surface passivation can make copper strip surface form layer protecting film, prevents strip surface oxidation.
6. finished product is sheared and finished product copper strips is sheared without tension force shearing equipment with uncoiling, has avoided because copper strips is thin, soft, wide, and uncoiling tension causes greatly copper strips distortion.
7. the copper strips of producing according to this processing technology is used for the laminating material of copper steel of making, than fine copper, there is the high and low cost of obvious intensity, lightweight, saving copper resource and the advantage such as attractive in appearance, and softness is easy to processing, its practicality completely can be mutually equal with fine copper, and the chemical composition stability of material, surface cleaning, smooth No oxidation discoloration, without peeling, play thorn, bubble, crackle, layering, be mingled with, the defect such as cavity, stain, backfin, verdigris, wiping scuffing and corrosion.
8. the copper strips of producing according to this processing technology, thickness specification can reach 0.15～0.2mm, width specifications can reach 310-610mm, in the lower performance of soft state (M), can reach tensile strength Rm≤270MPa, percentage elongation A11.3 >=30%, hardness HV≤65, tolerance can reach: thickness-0.010～+ 0.005mm, width ± 0.20mm, grain size >=0.05mm.
The invention solves the laminating production difficult problem with copper strips of copper steel of domestic thinner thickness, wider width.The present invention has determined the laminating production procedure with copper strips of copper steel, finds out properties of product partially soft best annealing process and method.
The invention belongs to non-ferrous metals processing field, be not limited to and adapt to electrical equipment and decorative product industry.
The specific embodiment:
Below in conjunction with embodiment and the specific embodiment, the present invention is described in further detail:
Embodiment 1:
For not only requiring hardness but also require the decorative product that color and luster is attractive in appearance, its combination property is that laminating front copper strips requirement spy is soft, requires the copper steel that copper strips is harder laminating with copper strips after laminating processing, and its specification requirement is:
The trade mark: H65
Copper strips specification: 0.2 * 560mm
State: soft state (M)
Performance requirement: tensile strength Rm≤270MPa, percentage elongation A11.3 >=30%, hardness HV≤65
Tolerance: thickness deviation-0.010～+ 0.005mm, width tolerance ± 0.20mm
Grain size: >=0.05mm
Concrete processing technology step is carried out successively as follows:
(1) batching: the laminating component content with copper strips of copper steel is configured to by weight percentage: copper Cu65%, iron Fe0.08%, plumbous Pb0.02%, nickel 0.3%, surplus is zinc Zn, each component sum is absolutely;
(2) founding: in having core line frequency furnace, carry out melting, during melting with ammeter balancing point or melt flame as the sign of coming out of the stove; In fusion process, adopt charcoal to cover melt liquid level in stove, cladding thickness 130mm; When preparing to holding furnace converter, in smelting furnace, after melt flame 3 times, proceed to again holding furnace; After smelting furnace flame completes, the copper liquid melting in smelting furnace is proceeded to holding furnace; In holding furnace, melt is heated, and adopt charcoal to cover melt, cladding thickness 180mm; In holding furnace, melt occurs after flame, and copper liquid flows into crystallizer through cast tubes and casts, and casting process is used vibrational casting; By semicontinuous casting machine, copper sheathing crystallizer, cast; During casting, adopt appropriate borax as flux, melt in crystallizer to be covered; Casting speed 9.0m/h; Cooling water pressure 90Kpa; Thereby formation ingot casting;
(3) sawing: press Len req sawing ingot casting on sawing machine;
(4) hot rolling: carry out ingot casting heating by walking beam furnace, 880 ℃ of heating-up temperatures; On equipment of hot rolling, carry out ingot formation hot rolling, hot-rolled billet general working rate 93%;
(5) milling face: carry out made-up belt milling face on Double Milling milling machine;
(6) roughing: on roughing mill, the made-up belt after milling face is carried out to roughing;
(7) cut limit: on shearing equipment, the made-up belt after roughing is cut to limit;
(8) in, roll front annealing: on annealing furnace, the made-up belt of cutting behind limit is carried out to intermediate annealing, adopt cover annealing, 530 ℃ of annealing temperatures, annealing time 6.5 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(9) in, roll: with in milling train the made-up belt after trimming annealing is rolled to front one thickness to finished product;
(10) annealing before finished product rolling: the copper strips after rolling with through type light air cushion annealing furnace centering is annealed; 685 ℃ of annealing temperatures, 25 ms/min of Negotiation speeds, adopt purity nitrogen atmosphere to protect in annealing;
(11) finished product rolling: with finishing mill to finished product rolling before annealing after made-up belt carry out finish rolling to finished product copper strips;
(12) clean: finished product copper strips carries out surperficial degreasing and passivation, and passivating solution is the phenylpropyl alcohol triazole of mass ratio 2.5 ‰, and surplus is deionized water; Operating temperature remains on 70 ℃;
(13) stretch bending is rectified: finished product copper strips is carried out to template leveling and reparation, and copper strips adopts small tension receiving coil 150Kg to batch;
(14) finished products: for guaranteeing properties of product, adopt cover annealing, use special-purpose convection disc temper remover, 560 ℃ of annealing temperatures, annealing time 7.5 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(15) finished product is sheared: with uncoiling, without tension force shearing equipment, finished product copper strips is sheared by contract dimensional requirement;
(16) packing warehouse-in: finished product copper strips is packed warehouse-in through after the assay was approved.
Embodiment 2:
For not only requiring hardness but also require the decorative product that color and luster is attractive in appearance, its combination property is that laminating front copper strips requirement spy is soft, requires the copper steel that copper strips is harder laminating with copper strips after laminating processing, and its specification requirement is:
The trade mark: H65
Copper strips specification: 0.15 * 610mm
State: soft state (M)
Performance requirement: tensile strength Rm≤270MPa, percentage elongation A11.3 >=30%, hardness HV≤65
Tolerance: thickness deviation-0.010～+ 0.005mm, width tolerance ± 0.20mm
Grain size: >=0.05mm
Concrete processing technology step is carried out successively as follows:
(1) batching: the laminating component content with copper strips of copper steel is configured to by weight percentage: copper Cu66.5%, iron Fe0.1%, plumbous Pb0.03%, nickel 0.5%, surplus is zinc Zn, each component sum is absolutely;
(2) founding: in having core line frequency furnace, carry out melting, during melting with ammeter balancing point or melt flame as the sign of coming out of the stove; In fusion process, adopt charcoal to cover melt liquid level in stove, cladding thickness 150mm; When preparing to holding furnace converter, in smelting furnace, after melt flame 3 times, proceed to again holding furnace; After smelting furnace flame completes, the copper liquid melting in smelting furnace is proceeded to holding furnace; In holding furnace, melt is heated, and adopt charcoal to cover melt, cladding thickness 200mm; In holding furnace, melt occurs after flame, and copper liquid flows into crystallizer through cast tubes and casts, and casting process is used vibrational casting; By semicontinuous casting machine, copper sheathing crystallizer, cast; During casting, adopt appropriate borax as flux, melt in crystallizer to be covered; Casting speed 10.0m/h; Cooling water pressure 100Kpa; Thereby formation ingot casting;
(3) sawing: press Len req sawing ingot casting on sawing machine;
(4) hot rolling: carry out ingot casting heating by walking beam furnace, 900 ℃ of heating-up temperatures; On equipment of hot rolling, carry out ingot formation hot rolling, hot-rolled billet general working rate 95%;
(5) milling face: carry out made-up belt milling face on Double Milling milling machine;
(6) roughing: on roughing mill, the made-up belt after milling face is carried out to roughing;
(7) cut limit: on shearing equipment, the made-up belt after roughing is cut to limit;
(8) in, roll front annealing: on annealing furnace, the made-up belt of cutting behind limit is carried out to intermediate annealing, adopt cover annealing, 580 ℃ of annealing temperatures, annealing time 8 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(9) in, roll: with in milling train the made-up belt after trimming annealing is rolled to front one thickness to finished product;
(10) annealing before finished product rolling: the copper strips after rolling with through type light air cushion annealing furnace centering is annealed; 720 ℃ of annealing temperatures, 28 ms/min of Negotiation speeds, adopt purity nitrogen atmosphere to protect in annealing;
(11) finished product rolling: with finishing mill to finished product rolling before annealing after made-up belt carry out finish rolling to finished product copper strips;
(12) clean: finished product copper strips carries out surperficial degreasing and passivation, and passivating solution is the phenylpropyl alcohol triazole of mass ratio 3 ‰, and surplus is deionized water; Operating temperature remains on 75 ℃;
(13) stretch bending is rectified: finished product copper strips is carried out to template leveling and reparation, and copper strips adopts small tension receiving coil 200Kg to batch;
(14) finished products: for guaranteeing properties of product, adopt cover annealing, use special-purpose convection disc temper remover, 610 ℃ of annealing temperatures, annealing time 8 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(15) finished product is sheared: with uncoiling, without tension force shearing equipment, finished product copper strips is sheared by contract dimensional requirement;
(16) packing warehouse-in: finished product copper strips is packed warehouse-in through after the assay was approved.
Embodiment 3:
For not only requiring hardness but also require the decorative product that color and luster is attractive in appearance, its combination property is that laminating front copper strips requirement spy is soft, requires the copper steel that copper strips is harder laminating with copper strips after laminating processing, and its specification requirement is:
The trade mark: H65
Copper strips specification: 0.2 * 310mm
State: soft state (M)
Performance requirement: tensile strength Rm≤270MPa, percentage elongation A11.3 >=30%, hardness HV≤65
Tolerance: thickness deviation-0.010～+ 0.005mm, width tolerance ± 0.20mm
Grain size: >=0.05mm
Concrete processing technology step is carried out successively as follows:
(1) batching: the laminating component content with copper strips of copper steel is configured to by weight percentage: copper Cu63.5%, iron Fe0.08%, plumbous Pb0.02%, nickel 0.35%, surplus is zinc Zn, each component sum is absolutely;
(2) founding: in having core line frequency furnace, carry out melting, during melting with ammeter balancing point or melt flame as the sign of coming out of the stove; In fusion process, adopt charcoal to cover melt liquid level in stove, cladding thickness 100mm; When preparing to holding furnace converter, in smelting furnace, after melt flame 2 times, proceed to again holding furnace; After smelting furnace flame completes, the copper liquid melting in smelting furnace is proceeded to holding furnace; In holding furnace, melt is heated, and adopt charcoal to cover melt, cladding thickness 150mm; In holding furnace, melt occurs after flame, and copper liquid flows into crystallizer through cast tubes and casts, and casting process is used vibrational casting; By semicontinuous casting machine, copper sheathing crystallizer, cast; During casting, adopt appropriate borax as flux, melt in crystallizer to be covered; Casting speed 8.0m/h; Cooling water pressure 80Kpa; Thereby formation ingot casting;
(3) sawing: press Len req sawing ingot casting on sawing machine;
(4) hot rolling: carry out ingot casting heating by walking beam furnace, 860 ℃ of heating-up temperatures; On equipment of hot rolling, carry out ingot formation hot rolling, hot-rolled billet general working rate 90%;
(5) milling face: carry out made-up belt milling face on Double Milling milling machine;
(6) roughing: on roughing mill, the made-up belt after milling face is carried out to roughing;
(7) cut limit: on shearing equipment, the made-up belt after roughing is cut to limit;
(8) in, roll front annealing: on annealing furnace, the made-up belt of cutting behind limit is carried out to intermediate annealing, adopt cover annealing, 480 ℃ of annealing temperatures, annealing time 5 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(9) in, roll: with in milling train the made-up belt after trimming annealing is rolled to front one thickness to finished product;
(10) annealing before finished product rolling: the copper strips after rolling with through type light air cushion annealing furnace centering is annealed; 650 ℃ of annealing temperatures, 22 ms/min of Negotiation speeds, adopt purity nitrogen atmosphere to protect in annealing;
(11) finished product rolling: with finishing mill to finished product rolling before annealing after made-up belt carry out finish rolling to finished product copper strips;
(12) clean: finished product copper strips carries out surperficial degreasing and passivation, and passivating solution is the phenylpropyl alcohol triazole of mass ratio 2 ‰, and surplus is deionized water; Operating temperature remains on 65 ℃;
(13) stretch bending is rectified: finished product copper strips is carried out to template leveling and reparation, and copper strips adopts small tension receiving coil 100Kg to batch;
(14) finished products: for guaranteeing properties of product, adopt cover annealing, use special-purpose convection disc temper remover, 520 ℃ of annealing temperatures, annealing time 7 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(15) finished product is sheared: with uncoiling, without tension force shearing equipment, finished product copper strips is sheared by contract dimensional requirement;
(16) packing warehouse-in: finished product copper strips is packed warehouse-in through after the assay was approved.
Claims (4)
1. the laminating copper strips technological method for processing of using of copper steel, be by: batching → founding → sawing → hot rolling → milling face → roughing → cut limit → in roll front annealing → in before the rolling of roll → finished product annealing → finished product rolling → cleanings → stretch bending rectify → finished products → finished product shear → pack to put in storage and complete successively; It is characterized in that: concrete processing technology step is carried out successively as follows:
(1) batching: the laminating component content with copper strips of copper steel is configured to by weight percentage: copper Cu63.5%～66.5%, iron Fe≤0.1%, plumbous Pb≤0.03%, nickel≤0.5%, surplus is zinc Zn, inevitable impurity < 0.3%, each component sum is absolutely;
(2) founding: in having core line frequency furnace, carry out melting, during melting with ammeter balancing point or melt flame as the sign of coming out of the stove; In fusion process, adopt charcoal to cover melt liquid level in stove, cladding thickness 100～150mm; When preparing to holding furnace converter, in smelting furnace, after melt flame 2～3 times, proceed to again holding furnace; After smelting furnace flame completes, the copper liquid melting in smelting furnace is proceeded to holding furnace; In holding furnace, melt is heated, and adopt charcoal to cover melt, cladding thickness 150～200mm; In holding furnace, melt occurs after flame, and copper liquid flows into crystallizer through cast tubes and casts, and casting process is used vibrational casting; By semicontinuous casting machine, copper sheathing crystallizer, cast; During casting, adopt appropriate borax as flux, melt in crystallizer to be covered; Casting speed 8.0-10.0m/h; Cooling water pressure 80～100Kpa; Thereby formation ingot casting;
(3) sawing: press Len req sawing ingot casting on sawing machine;
(4) hot rolling: carry out ingot casting heating by walking beam furnace, 860 ℃～900 ℃ of heating-up temperatures; On equipment of hot rolling, carry out ingot formation hot rolling, hot-rolled billet general working rate >=90%;
(5) milling face: carry out made-up belt milling face on Double Milling milling machine;
(6) roughing: on roughing mill, the made-up belt after milling face is carried out to roughing;
(7) cut limit: on shearing equipment, the made-up belt after roughing is cut to limit;
(8) in, roll front annealing: on annealing furnace, the made-up belt of cutting behind limit is carried out to intermediate annealing, adopt cover annealing, 480 ℃～580 ℃ of annealing temperatures, annealing time 5～8 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(9) in, roll: with in milling train the made-up belt after trimming annealing is rolled to front one thickness to finished product;
(10) annealing before finished product rolling: the copper strips after rolling with through type light air cushion annealing furnace centering is annealed; 650 ℃～720 ℃ of annealing temperatures, 22～28 ms/min of Negotiation speeds, adopt purity nitrogen atmosphere to protect in annealing;
(11) finished product rolling: with finishing mill to finished product rolling before annealing after made-up belt carry out finish rolling to finished product copper strips;
(12) clean: finished product copper strips carries out surperficial degreasing and passivation, and passivating solution is the phenylpropyl alcohol triazole of mass ratio 2 ‰～3 ‰, and surplus is deionized water; Operating temperature remains on 65 ℃～75 ℃;
(13) stretch bending is rectified: finished product copper strips is carried out to template leveling and reparation, and copper strips adopts small tension receiving coil 100Kg-200Kg to batch;
(14) finished products: for guaranteeing properties of product, adopt cover annealing, use special-purpose convection disc temper remover, 520 ℃～610 ℃ of annealing temperatures, annealing time 7～8 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(15) finished product is sheared: with uncoiling, without tension force shearing equipment, finished product copper strips is sheared by contract dimensional requirement;
(16) packing warehouse-in: finished product copper strips is packed warehouse-in through after the assay was approved.
2. the laminating copper strips technological method for processing of using of a kind of copper steel according to claim 1, be by: batching → founding → sawing → hot rolling → milling face → roughing → cut limit → in roll front annealing → in before the rolling of roll → finished product annealing → finished product rolling → cleanings → stretch bending rectify → finished products → finished product shear → pack to put in storage and complete successively; It is characterized in that: concrete processing technology step is carried out successively as follows:
(1) batching: the laminating component content with copper strips of copper steel is configured to by weight percentage: copper Cu65%, iron Fe0.08%, plumbous Pb0.02%, nickel 0.3%, surplus is zinc Zn, each component sum is absolutely;
(2) founding: in having core line frequency furnace, carry out melting, during melting with ammeter balancing point or melt flame as the sign of coming out of the stove; In fusion process, adopt charcoal to cover melt liquid level in stove, cladding thickness 130mm; When preparing to holding furnace converter, in smelting furnace, after melt flame 3 times, proceed to again holding furnace; After smelting furnace flame completes, the copper liquid melting in smelting furnace is proceeded to holding furnace; In holding furnace, melt is heated, and adopt charcoal to cover melt, cladding thickness 180mm; In holding furnace, melt occurs after flame, and copper liquid flows into crystallizer through cast tubes and casts, and casting process is used vibrational casting; By semicontinuous casting machine, copper sheathing crystallizer, cast; During casting, adopt appropriate borax as flux, melt in crystallizer to be covered; Casting speed 9.0m/h; Cooling water pressure 90Kpa; Thereby formation ingot casting;
(3) sawing: press Len req sawing ingot casting on sawing machine;
(4) hot rolling: carry out ingot casting heating by walking beam furnace, 880 ℃ of heating-up temperatures; On equipment of hot rolling, carry out ingot formation hot rolling, hot-rolled billet general working rate 93%;
(5) milling face: carry out made-up belt milling face on Double Milling milling machine;
(6) roughing: on roughing mill, the made-up belt after milling face is carried out to roughing;
(7) cut limit: on shearing equipment, the made-up belt after roughing is cut to limit;
(8) in, roll front annealing: on annealing furnace, the made-up belt of cutting behind limit is carried out to intermediate annealing, adopt cover annealing, 530 ℃ of annealing temperatures, annealing time 6.5 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(9) in, roll: with in milling train the made-up belt after trimming annealing is rolled to front one thickness to finished product;
(10) annealing before finished product rolling: the copper strips after rolling with through type light air cushion annealing furnace centering is annealed; 685 ℃ of annealing temperatures, 25 ms/min of Negotiation speeds, adopt purity nitrogen atmosphere to protect in annealing;
(11) finished product rolling: with finishing mill to finished product rolling before annealing after made-up belt carry out finish rolling to finished product copper strips;
(12) clean: finished product copper strips carries out surperficial degreasing and passivation, and passivating solution is the phenylpropyl alcohol triazole of mass ratio 2.5 ‰, and surplus is deionized water; Operating temperature remains on 70 ℃;
(13) stretch bending is rectified: finished product copper strips is carried out to template leveling and reparation, and copper strips adopts small tension receiving coil 150Kg to batch;
(14) finished products: for guaranteeing properties of product, adopt cover annealing, use special-purpose convection disc temper remover, 560 ℃ of annealing temperatures, annealing time 7.5 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(15) finished product is sheared: with uncoiling, without tension force shearing equipment, finished product copper strips is sheared by contract dimensional requirement;
(16) packing warehouse-in: finished product copper strips is packed warehouse-in through after the assay was approved.
3. the laminating copper strips technological method for processing of using of a kind of copper steel according to claim 1, be by: batching → founding → sawing → hot rolling → milling face → roughing → cut limit → in roll front annealing → in before the rolling of roll → finished product annealing → finished product rolling → cleanings → stretch bending rectify → finished products → finished product shear → pack to put in storage and complete successively; It is characterized in that: concrete processing technology step is carried out successively as follows:
(1) batching: the laminating component content with copper strips of copper steel is configured to by weight percentage: copper Cu66.5%, iron Fe0.1%, plumbous Pb0.03%, nickel 0.5%, surplus is zinc Zn, each component sum is absolutely;
(2) founding: in having core line frequency furnace, carry out melting, during melting with ammeter balancing point or melt flame as the sign of coming out of the stove; In fusion process, adopt charcoal to cover melt liquid level in stove, cladding thickness 150mm; When preparing to holding furnace converter, in smelting furnace, after melt flame 3 times, proceed to again holding furnace; After smelting furnace flame completes, the copper liquid melting in smelting furnace is proceeded to holding furnace; In holding furnace, melt is heated, and adopt charcoal to cover melt, cladding thickness 200mm; In holding furnace, melt occurs after flame, and copper liquid flows into crystallizer through cast tubes and casts, and casting process is used vibrational casting; By semicontinuous casting machine, copper sheathing crystallizer, cast; During casting, adopt appropriate borax as flux, melt in crystallizer to be covered; Casting speed 10.0m/h; Cooling water pressure 100Kpa; Thereby formation ingot casting;
(3) sawing: press Len req sawing ingot casting on sawing machine;
(4) hot rolling: carry out ingot casting heating by walking beam furnace, 900 ℃ of heating-up temperatures; On equipment of hot rolling, carry out ingot formation hot rolling, hot-rolled billet general working rate 95%;
(5) milling face: carry out made-up belt milling face on Double Milling milling machine;
(6) roughing: on roughing mill, the made-up belt after milling face is carried out to roughing;
(7) cut limit: on shearing equipment, the made-up belt after roughing is cut to limit;
(8) in, roll front annealing: on annealing furnace, the made-up belt of cutting behind limit is carried out to intermediate annealing, adopt cover annealing, 580 ℃ of annealing temperatures, annealing time 8 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(9) in, roll: with in milling train the made-up belt after trimming annealing is rolled to front one thickness to finished product;
(10) annealing before finished product rolling: the copper strips after rolling with through type light air cushion annealing furnace centering is annealed; 720 ℃ of annealing temperatures, 28 ms/min of Negotiation speeds, adopt purity nitrogen atmosphere to protect in annealing;
(11) finished product rolling: with finishing mill to finished product rolling before annealing after made-up belt carry out finish rolling to finished product copper strips;
(12) clean: finished product copper strips carries out surperficial degreasing and passivation, and passivating solution is the phenylpropyl alcohol triazole of mass ratio 3 ‰, and surplus is deionized water; Operating temperature remains on 75 ℃;
(13) stretch bending is rectified: finished product copper strips is carried out to template leveling and reparation, and copper strips adopts small tension receiving coil 200Kg to batch;
(14) finished products: for guaranteeing properties of product, adopt cover annealing, use special-purpose convection disc temper remover, 610 ℃ of annealing temperatures, annealing time 8 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(15) finished product is sheared: with uncoiling, without tension force shearing equipment, finished product copper strips is sheared by contract dimensional requirement;
(16) packing warehouse-in: finished product copper strips is packed warehouse-in through after the assay was approved.
4. the laminating copper strips technological method for processing of using of a kind of copper steel according to claim 1, be by: batching → founding → sawing → hot rolling → milling face → roughing → cut limit → in roll front annealing → in before the rolling of roll → finished product annealing → finished product rolling → cleanings → stretch bending rectify → finished products → finished product shear → pack to put in storage and complete successively; It is characterized in that: concrete processing technology step is carried out successively as follows:
(1) batching: the laminating component content with copper strips of copper steel is configured to by weight percentage: copper Cu63.5%, iron Fe0.08%, plumbous Pb0.02%, nickel 0.35%, surplus is zinc Zn, each component sum is absolutely;
(2) founding: in having core line frequency furnace, carry out melting, during melting with ammeter balancing point or melt flame as the sign of coming out of the stove; In fusion process, adopt charcoal to cover melt liquid level in stove, cladding thickness 100mm; When preparing to holding furnace converter, in smelting furnace, after melt flame 2 times, proceed to again holding furnace; After smelting furnace flame completes, the copper liquid melting in smelting furnace is proceeded to holding furnace; In holding furnace, melt is heated, and adopt charcoal to cover melt, cladding thickness 150mm; In holding furnace, melt occurs after flame, and copper liquid flows into crystallizer through cast tubes and casts, and casting process is used vibrational casting; By semicontinuous casting machine, copper sheathing crystallizer, cast; During casting, adopt appropriate borax as flux, melt in crystallizer to be covered; Casting speed 8.0m/h; Cooling water pressure 80Kpa; Thereby formation ingot casting;
(3) sawing: press Len req sawing ingot casting on sawing machine;
(4) hot rolling: carry out ingot casting heating by walking beam furnace, 860 ℃ of heating-up temperatures; On equipment of hot rolling, carry out ingot formation hot rolling, hot-rolled billet general working rate 90%;
(5) milling face: carry out made-up belt milling face on Double Milling milling machine;
(6) roughing: on roughing mill, the made-up belt after milling face is carried out to roughing;
(7) cut limit: on shearing equipment, the made-up belt after roughing is cut to limit;
(8) in, roll front annealing: on annealing furnace, the made-up belt of cutting behind limit is carried out to intermediate annealing, adopt cover annealing, 480 ℃ of annealing temperatures, annealing time 5 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(9) in, roll; Made-up belt after trimming being annealed with middle milling train is rolled front one thickness to finished product;
(10) annealing before finished product rolling: the copper strips after rolling with through type light air cushion annealing furnace centering is annealed; 650 ℃ of annealing temperatures, 22 ms/min of Negotiation speeds, adopt purity nitrogen atmosphere to protect in annealing;
(11) finished product rolling: with finishing mill to finished product rolling before annealing after made-up belt carry out finish rolling to finished product copper strips;
(12) clean: finished product copper strips carries out surperficial degreasing and passivation, and passivating solution is the phenylpropyl alcohol triazole of mass ratio 2 ‰, and surplus is deionized water; Operating temperature remains on 65 ℃;
(13) stretch bending is rectified: finished product copper strips is carried out to template leveling and reparation, and copper strips adopts small tension receiving coil 100Kg to batch;
(14) finished products: for guaranteeing properties of product, adopt cover annealing, use special-purpose convection disc temper remover, 520 ℃ of annealing temperatures, annealing time 7 hours; In annealing, adopt 75% high nitrogen atmosphere to protect;
(15) finished product is sheared: with uncoiling, without tension force shearing equipment, finished product copper strips is sheared by contract dimensional requirement;
(16) packing warehouse-in: finished product copper strips is packed warehouse-in through after the assay was approved.
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Effective date of registration: 20170824 Address after: 471039 No. 50, Jianxi, Luoyang District, Henan, Jianshe Road Patentee after: China Aluminum Luoyang Copper Processing Co., Ltd. Address before: 471039 No. 50, Jianxi, Luoyang District, Henan, Jianshe Road Patentee before: Zhonglu Luoyang Copper Industry Co., Ltd. |