CN105063416A - Environmental-friendly economical copper alloy wire and processing method thereof - Google Patents
Environmental-friendly economical copper alloy wire and processing method thereof Download PDFInfo
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Abstract
The invention discloses an environmental-friendly economical copper alloy wire and a processing method thereof, and belongs to the technical field of copper alloy wires. The copper alloy wire comprises essential components and additive components. The essential components include, by weight, 57.0%-59.5% of Cu, 40.2%-42.8% of Zn, 0.003%-0.01% of Ni, 0.01%-0.03% of Si and 0.01%-0.03% of Fe. The additive components include, by weight, 0.001%-0.05% of P, 0.005%-0.01% of Al, 0.002%-0.01% of Mg, 0.001%-0.01% of Sn, equal to or less than 0.008% of Pb and equal to or less than 0.25% of RE. The purposes that the copper alloy wire is low in lead content, copper content and magnetic property and good in plastic processing performance are achieved. Meanwhile, by means of the processing method of the copper alloy wire, the production targets of short process and high efficiency are achieved.
Description
Technical field
The present invention relates to copper alloy wire technical field, more particularly, relate to a kind of environmental protection economical copper alloy wire and working method thereof.
Background technology
Because clothes metal zip fastener requires to have certain transverse tensile strength and light slippery, and copper base alloy is easy to chemical stain, and current domestic metal zip fastener is based on brass H65 and the H63 trade mark.And copper metal is as noble metal, and belong to resource-consuming resource, copper processing is caused to occupy high-order, clothes metal zip fastener metal recovery rate is low simultaneously, be unfavorable for that resource reuses, therefore for reducing metal zip fastener copper content, and keep the distinctive mechanical property of metal zip fastener, and meet trade exports, need badly and develop the low copper alloy wire of a kind of copper content.The metal zip fastener simultaneously producing clothes also requires copper alloy wire to have, and lead tolerance is low, magnetic is low and good plastic deformation ability.In sum, need in prior art that a kind of lead tolerance is low, copper content is low, magnetic is low and the clothes copper alloy wire of good plastic deformation ability badly.
Summary of the invention
1. invent the technical problem that will solve
Technical problem to be solved by this invention is the particular requirement for clothes copper alloy wire in prior art, a kind of environmental protection economical copper alloy wire and working method thereof are provided, achieve that copper alloy wire lead tolerance is low, copper content is low, magnetic is low and the target of good plastic deformation ability, this copper alloy wire material processing method achieves short route, high efficiency productive target simultaneously.
2. technical scheme
For achieving the above object, technical scheme provided by the invention is:
Environmental protection economical copper alloy wire of the present invention, the composition of this copper alloy wire comprises basal component and addO-on therapy;
Wherein, basal component comprises following various element: Cu, Zn, Ni, Si and Fe, and addO-on therapy comprises following various element: P, Al, Mg, Sn, Pb and rare earth elements RE;
In described basal component, the weight percent of each element is: Cu:57.0 ~ 59.5, Zn:40.2 ~ 42.8, Ni:0.003 ~ 0.01, Si:0.01 ~ 0.03, Fe:0.01 ~ 0.03;
In described addO-on therapy, the weight percent of each element is: P:0.001 ~ 0.05, Al:0.005 ~ 0.01, Mg:0.002 ~ 0.01, Sn:0.001 ~ 0.01, Pb :≤0.008, rare earth elements RE≤0.25.
As further improvement of the present invention, in described basal component, the weight ratio of Ni and Fe is 1:1 ~ 10.
As further improvement of the present invention, described rare earth elements RE is the mixing of La or Ce or La and Ce.
The working method of environmental protection economical copper alloy wire of the present invention, comprises the steps,
(1), burden process:
Prepare burden according to the composition of a kind of environmental protection economical copper alloy wire described in claims 1 to 3 any one;
(2), melting and casting operation:
Adopt smelting furnace melting is carried out to the raw material that step (1) is joined, the melt in smelting furnace enters in holding furnace with undercurrent form, then by servo counter push away continuous casting installation for casting carry out level or on draw traction casting, obtain strand; Wherein, the charcoal layer of 10mm ~ 15mm is covered in smelting furnace, holding furnace, fusion process stirs melt simultaneously, melting, the casting temp of guarantee alloy are 1000 DEG C ~ 1200 DEG C, servo is counter pushes away continuous casting action for " draw-stop-counter push away-stop-La " five continuous movements, and the working time of each action is 0.003 ~ 0.01 second;
(3), peeling operation:
Adopt peeling drawing die or rotary peeling hobboing cutter mould to be removed by the blank surface thing after melting and casting in step (2), the top layer thing thickness of removal is 0.1 ~ 0.35mm;
(4), rolling process 1:
Adopt multi-pass two roller or three rollers cold rolling, the strand after step (3) peeling operation is rolling to the diameter dimension of processing requirement; Wherein, after rolling, line base sectional shrinkage is 65% ~ 86%;
(5), heat treatment step 1:
Annealing furnace is adopted to carry out atmosphere protection thermal treatment to the line base through step (4); Wherein, Heating temperature is 280 ~ 450 DEG C, and the heating-up time is 1.5 ~ 2.8h, and soaking time is 2.5 ~ 3.5h, and cooling time is 4.0 ~ 6.0h;
(6), rolling process 2:
Adopt multi-pass two roller and multi-pass four roller built-up type cold rolling, by the wire rod rolling after step (5) thermal treatment to the lenticular wire of processing requirement or shaped wire, wherein, after rolling, line base sectional shrinkage is 40% ~ 58%;
(7), heat treatment step 2:
Annealing furnace is adopted to carry out atmosphere protection thermal treatment to the line base through step (6); Wherein, Heating temperature is 280 ~ 450 DEG C, and the heating-up time is 1.5 ~ 2.8h, and soaking time is 2.5 ~ 3.5h, and cooling time is 4.0 ~ 6.0h;
(8), drawing procedure:
Adopt single pass wortle to coordinate, with External Force Acting in by the front end of drawing stock, the line base after step (7) thermal treatment is pulled out from the nib being less than line base section, its section is reduced and length increases, obtain copper alloy wire finished product;
(9), examination and test of products operation:
Test to the finished product obtained after step (8) drawing, inspection content comprises material composition, final dimension deviation, surfaceness, line style and mechanical property; By inspection process, meet the product introduction step (10) of inspecting standard, substandard product carries out changing a social system or melting down process;
(10), packaging warehouse-in operation:
Will through the qualified finished product of step (9) examination and test of products operation, carry out weighing, pack, put in storage, thus complete the course of processing of this copper alloy wire.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with prior art, there is following unusual effect:
(1), environmental protection economical copper alloy wire of the present invention, by adding the trace element of solid solution and generation disperse educt phase, carry out crystal grain thinning, strengthen the mobility of alloy melt, carry heavy alloyed working plasticity further, improve the production efficiency of this copper alloy wire, achieve the target of short route, High-efficient Production.
(2), the working method of environmental protection economical copper alloy wire of the present invention, in order to keep and H63, the excellent working plasticity that H65 material is identical, adopt circle line blank rolling continuously, the rolling of built-up type lenticular wire and atmosphere protection annealing furnace heat treatment technics, be beneficial to further processing, the use of atmosphere protection annealing furnace heat treatment technics ensure that soft state finished surface has certain color and luster, decrease metal loss, achieve simultaneously and exempt from pickling, decrease the pollution of pickling to environment, the exploitation of rolling process improves the compactness of material, effectively raise the machining property of material.
(3), environmental protection economical copper alloy wire of the present invention achieves that lead tolerance is low, copper content is low, magnetic is low and the target of good plastic deformation ability, met the technical requirements of trade exports by the control of Pb, Fe content; This Cu alloy material working method achieves short route, high efficiency productive target simultaneously.
Embodiment
For understanding content of the present invention further, below in conjunction with embodiment, the invention will be further described.
Embodiment 1
The environmental protection economical copper alloy wire of the present embodiment, the composition of this copper alloy wire comprises basal component and addO-on therapy; Wherein, basal component comprises following various element: Cu, Zn, Ni, Si and Fe, and addO-on therapy comprises following various element: P, Al, Mg, Sn, Pb and rare earth elements RE; In basal component, the weight percent of each element is: Cu:57.0 ~ 59.5, Zn:40.2 ~ 42.8, Ni:0.003 ~ 0.01, Si:0.01 ~ 0.03, Fe:0.01 ~ 0.03; In addO-on therapy, the weight percent of each element is: P:0.001 ~ 0.05, Al:0.005 ~ 0.01, Mg:0.002 ~ 0.01, Sn:0.001 ~ 0.01, Pb :≤0.008, rare earth elements RE≤0.25.In basal component, the weight ratio of Ni and Fe is 1:1 ~ 10.Rare earth elements RE is the mixing of La or Ce or La and Ce.
Concrete, in the present embodiment, the composition following (count by weight percentage, and ignore impurity) of this copper alloy wire: Cu:57.0, Zn:42.8, Ni:0.003, Si:0.01, Fe:0.03; P:0.001, Al:0.005, Mg:0.002, Sn:0.001, Pb:0.007, La:0.1, Ce:0.041.
The working method of the environmental protection economical copper alloy wire of the present embodiment, comprises the steps,
(1), burden process:
When preparing burden, based on copper scap, electrolytic copper, zinc ingot metal, master alloy, this copper alloy wire is carried out prepare burden (count by weight percentage, and ignore impurity) according to following composition: Cu:57.0, Zn:42.8, Ni:0.003, Si:0.01, Fe:0.03; P:0.001, Al:0.005, Mg:0.002, Sn:0.001, Pb:0.007, La:0.1, Ce:0.041;
(2), melting and casting operation:
Employing has core power frequency smelting furnace to carry out melting to the raw material that step (1) is joined, melt in smelting furnace is with in core power frequency holding furnace with undercurrent form, horizontally tracting casting is carried out again by the anti-continuous casting installation for casting that pushes away of servo, obtain strand, the diameter of strand is 8.0mm, achieve working continuously of melting and casting, shorten work flow; Wherein, the charcoal layer of 10mm is covered in smelting furnace, holding furnace, strengthen fusion process to the stirring of melt simultaneously, melting, the casting temp of guarantee alloy are 1000 DEG C, servo is counter pushes away continuous casting action for " draw-stop-counter push away-stop-La " five continuous movements, and the working time of each action is 0.003 second;
(3), peeling operation:
Casting billet surface in step (2) after melting and casting is coarse, there is crystallization line, and adopt peeling drawing die evenly to be removed by the blank surface thing after melting and casting in step (2), the top layer thing thickness of removal is 0.1mm;
(4), rolling process 1:
Adopt multi-pass two roller cold rolling, the strand after step (3) peeling operation is rolling to the small dimension diameter dimension of processing requirement, obtains the line base that diameter is 3.25mm, line base smooth surface; Wherein, after rolling, line base sectional shrinkage is 65%;
(5), heat treatment step 1:
Adopt annealing furnace to carry out atmosphere protection thermal treatment to the line base through step (4), after atmosphere protection thermal treatment, Realization of Product exempts from pickling; Wherein, Heating temperature is 280 DEG C, and the heating-up time is 1.5h, and soaking time is 2.5h, and cooling time is 4.0h;
(6), rolling process 2:
Adopt multi-pass two roller and multi-pass four roller built-up type cold rolling, by the wire rod rolling after step (5) thermal treatment to the small dimension lenticular wire (1.05 × 4.12mm) of processing requirement, line base smooth surface; Wherein, after rolling, line base sectional shrinkage is 40%;
(7), heat treatment step 2:
Adopt annealing furnace to carry out atmosphere protection thermal treatment to the line base through step (6), after atmosphere protection thermal treatment, Realization of Product exempts from pickling; Wherein, Heating temperature is 280 DEG C, and the heating-up time is 1.5h, and soaking time is 2.5h, and cooling time is 4.0h;
(8), drawing procedure:
Single pass wortle is adopted to coordinate, with External Force Acting in by the front end of drawing stock, line base after step (7) thermal treatment is pulled out from the nib being less than line base section, its section is reduced and length increases, obtain the copper alloy wire finished product being of a size of 0.9 × 3.95mm;
(9), examination and test of products operation:
Test to the finished product obtained after step (8) drawing, rejected by substandard product, inspection content comprises material composition, final dimension deviation, surfaceness, line style and mechanical property; By inspection process, meet the product introduction step (10) of inspecting standard, substandard product carries out changing a social system or melting down process; Wherein, the kind of common substandard product is: tolerance is defective, oval, draw trace, scratch, " 8 " wordline, crackle, peeling, ring, burr, fracture do not conform to, surface corrosion, oxidation tint, pit, pitted skin and black patches etc.
(10), packaging warehouse-in operation:
Will through the qualified finished product of step (9) examination and test of products operation, carry out weighing, pack, put in storage, thus complete the course of processing of this copper alloy wire.
Embodiment 2
The environmental protection economical copper alloy wire of the present embodiment, the composition of this copper alloy wire comprises basal component and addO-on therapy; Wherein, basal component comprises following various element: Cu, Zn, Ni, Si and Fe, and addO-on therapy comprises following various element: P, Al, Mg, Sn, Pb and rare earth elements RE; In basal component, the weight percent of each element is: Cu:57.0 ~ 59.5, Zn:40.2 ~ 42.8, Ni:0.003 ~ 0.01, Si:0.01 ~ 0.03, Fe:0.01 ~ 0.03; In addO-on therapy, the weight percent of each element is: P:0.001 ~ 0.05, Al:0.005 ~ 0.01, Mg:0.002 ~ 0.01, Sn:0.001 ~ 0.01, Pb :≤0.008, rare earth elements RE≤0.25.In basal component, the weight ratio of Ni and Fe is 1:1 ~ 10.Rare earth elements RE is the mixing of La or Ce or La and Ce.
Concrete, in the present embodiment, the composition following (count by weight percentage, and ignore impurity) of this copper alloy wire: Cu:59.5, Zn:40.2, Ni:0.003, Si:0.03, Fe:0.03; P:0.05, Al:0.01, Mg:0.01, Sn:0.01, Pb:0.008, La:0.049, Ce:0.1.
The working method of the environmental protection economical copper alloy wire of the present embodiment, comprises the steps,
(1), burden process:
When preparing burden, based on copper scap, electrolytic copper, zinc ingot metal, master alloy, this copper alloy wire is carried out prepare burden (count by weight percentage, and ignore impurity) according to following composition: Cu:59.5, Zn:40.2, Ni:0.003, Si:0.03, Fe:0.03; P:0.05, Al:0.01, Mg:0.01, Sn:0.01, Pb:0.008, La:0.049, Ce:0.1.
(2), melting and casting operation:
Coreless induction smelting furnace is adopted to carry out melting to the raw material that step (1) is joined, melt in smelting furnace enters in Coreless Mains Frequency Holding Furnace with undercurrent form, again by servo counter push away continuous casting installation for casting carry out on draw traction casting, obtain strand, the diameter of strand is 9.0mm, achieve working continuously of melting and casting, shorten work flow; Wherein, cover the charcoal layer of 15mm in smelting furnace, holding furnace, strengthen fusion process to the stirring of melt simultaneously, melting, the casting temp of guarantee alloy are 1200 DEG C, servo is counter pushes away continuous casting action for " draw-stop-counter push away-stop-La " five continuous movements, and the working time of each action is 0.01 second;
(3), peeling operation:
Casting billet surface in step (2) after melting and casting is coarse, there is crystallization line, and adopt rotary peeling hobboing cutter mould evenly to be removed by the blank surface thing after melting and casting in step (2), the top layer thing thickness of removal is 0.35mm;
(4), rolling process 1:
Adopt multi-pass three roller cold rolling, the strand after step (3) peeling operation is rolling to the small dimension diameter dimension of processing requirement, obtains the line base that diameter is 3.9mm, line base smooth surface; Wherein, after rolling, line base sectional shrinkage is 86%;
(5), heat treatment step 1:
Adopt annealing furnace to carry out atmosphere protection thermal treatment to the line base through step (4), after atmosphere protection thermal treatment, Realization of Product exempts from pickling; Wherein, Heating temperature is 450 DEG C, and the heating-up time is 2.8h, and soaking time is 3.5h, and cooling time is 6.0h;
(6), rolling process 2:
Adopt multi-pass two roller and multi-pass four roller built-up type cold rolling, by the wire rod rolling after step (5) thermal treatment to the finished product shaped wire of processing requirement: be specially 5#Y molded line base, line base smooth surface; Wherein, after rolling, line base sectional shrinkage is 58%;
(7), heat treatment step 2:
Adopt annealing furnace to carry out atmosphere protection thermal treatment to the line base through step (6), after atmosphere protection thermal treatment, Realization of Product exempts from pickling; Wherein, Heating temperature is 450 DEG C, and the heating-up time is 2.8h, and soaking time is 3.5h, and cooling time is 6.0h;
(8), drawing procedure:
Adopt single pass wortle to coordinate, with External Force Acting in by the front end of drawing stock, the line base after step (7) thermal treatment is pulled out from the nib being less than line base section, its section is reduced and length increases, obtain copper alloy wire finished product;
(9), examination and test of products operation:
Test to the finished product obtained after step (8) drawing, rejected by substandard product, inspection content comprises material composition, final dimension deviation, surfaceness, line style and mechanical property; By inspection process, meet the product introduction step (10) of inspecting standard, substandard product carries out changing a social system or melting down process; Wherein, the kind of common substandard product is: tolerance is defective, oval, draw trace, scratch, " 8 " wordline, crackle, peeling, ring, burr, fracture do not conform to, surface corrosion, oxidation tint, pit, pitted skin and black patches etc.
(10), packaging warehouse-in operation:
Will through the qualified finished product of step (9) examination and test of products operation, carry out weighing, pack, put in storage, thus complete the course of processing of this copper alloy wire.
Claims (4)
1. an environmental protection economical copper alloy wire, is characterized in that: the composition of this copper alloy wire comprises basal component and addO-on therapy;
Wherein, basal component comprises following various element: Cu, Zn, Ni, Si and Fe, and addO-on therapy comprises following various element: P, Al, Mg, Sn, Pb and rare earth elements RE;
In described basal component, the weight percent of each element is: Cu:57.0 ~ 59.5, Zn:40.2 ~ 42.8, Ni:0.003 ~ 0.01, Si:0.01 ~ 0.03, Fe:0.01 ~ 0.03;
In described addO-on therapy, the weight percent of each element is: P:0.001 ~ 0.05, Al:0.005 ~ 0.01, Mg:0.002 ~ 0.01, Sn:0.001 ~ 0.01, Pb :≤0.008, rare earth elements RE≤0.25.
2. a kind of environmental protection economical copper alloy wire according to claim 1, is characterized in that: in described basal component, the weight ratio of Ni and Fe is 1:1 ~ 10.
3. a kind of environmental protection economical copper alloy wire according to claim 1, is characterized in that: described rare earth elements RE is the mixing of La or Ce or La and Ce.
4. a working method for environmental protection economical copper alloy wire, is characterized in that: comprise the steps,
(1), burden process:
Prepare burden according to the composition of a kind of environmental protection economical copper alloy wire described in claims 1 to 3 any one;
(2), melting and casting operation:
Adopt smelting furnace melting is carried out to the raw material that step (1) is joined, the melt in smelting furnace enters in holding furnace with undercurrent form, then by servo counter push away continuous casting installation for casting carry out level or on draw traction casting, obtain strand; Wherein, the charcoal layer of 10mm ~ 15mm is covered in smelting furnace, holding furnace, fusion process stirs melt simultaneously, melting, the casting temp of guarantee alloy are 1000 DEG C ~ 1200 DEG C, servo is counter pushes away continuous casting action for " draw-stop-counter push away-stop-La " five continuous movements, and the working time of each action is 0.003 ~ 0.01 second;
(3), peeling operation:
Adopt peeling drawing die or rotary peeling hobboing cutter mould to be removed by the blank surface thing after melting and casting in step (2), the top layer thing thickness of removal is 0.1 ~ 0.35mm;
(4), rolling process 1:
Adopt multi-pass two roller or three rollers cold rolling, the strand after step (3) peeling operation is rolling to the diameter dimension of processing requirement; Wherein, after rolling, line base sectional shrinkage is 65% ~ 86%;
(5), heat treatment step 1:
Annealing furnace is adopted to carry out atmosphere protection thermal treatment to the line base through step (4); Wherein, Heating temperature is 280 ~ 450 DEG C, and the heating-up time is 1.5 ~ 2.8h, and soaking time is 2.5 ~ 3.5h, and cooling time is 4.0 ~ 6.0h;
(6), rolling process 2:
Adopt multi-pass two roller and multi-pass four roller built-up type cold rolling, by the wire rod rolling after step (5) thermal treatment to the lenticular wire of processing requirement or shaped wire, wherein, after rolling, line base sectional shrinkage is 40% ~ 58%;
(7), heat treatment step 2:
Annealing furnace is adopted to carry out atmosphere protection thermal treatment to the line base through step (6); Wherein, Heating temperature is 280 ~ 450 DEG C, and the heating-up time is 1.5 ~ 2.8h, and soaking time is 2.5 ~ 3.5h, and cooling time is 4.0 ~ 6.0h;
(8), drawing procedure:
Adopt single pass wortle to coordinate, with External Force Acting in by the front end of drawing stock, the line base after step (7) thermal treatment is pulled out from the nib being less than line base section, its section is reduced and length increases, obtain copper alloy wire finished product;
(9), examination and test of products operation:
Test to the finished product obtained after step (8) drawing, inspection content comprises material composition, final dimension deviation, surfaceness, line style and mechanical property; By inspection process, meet the product introduction step (10) of inspecting standard, substandard product carries out changing a social system or melting down process;
(10), packaging warehouse-in operation:
Will through the qualified finished product of step (9) examination and test of products operation, carry out weighing, pack, put in storage, thus complete the course of processing of this copper alloy wire.
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