CN102011029A - Zinc alloy for zipper tooth belt and preparation method of zipper tooth belt - Google Patents
Zinc alloy for zipper tooth belt and preparation method of zipper tooth belt Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
- C22C18/02—Alloys based on zinc with copper as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
- C22C18/04—Alloys based on zinc with aluminium as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/165—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon of zinc or cadmium or alloys based thereon
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Abstract
The invention discloses a zinc-alloy zipper tooth belt produced by a row microphone method, in particular to zinc alloy for a zipper tooth belt and a preparation method of the zipper tooth belt. The alloy comprises the following components by weight percent: 0.5-5% of Cu, 10-4.5% of Al, 0.01-0.2% of Mg and the balance of X, Y, Zn and unavoidable impurities, wherein the sum of the percentages of the components is 100%; the X is selected from at least one of 0.0001-0.5% of Bi, 0.01-0.19% of Ti, 0.001-0.3% of RE, 0.001-1% of Ni and 0.001-1% of Si; and Y is selected from at least one of Mn, Co, Nb, Zr, Cr, Ca, P, Sb, Te and Se. By adopting the deformed zinc alloy and the alloy producing method disclosed in the invention, the production of the zipper line can be met, and the zipper tooth belt can be produced smoothly by the row microphone method; and the produced zipper can be processed into different colors.
Description
Technical field
The present invention relates to zinc alloy and application thereof, specifically refer to the preparation method of a kind of slide fastener tooth band with zinc alloy and slide fastener tooth band.
Background technology
The invention of slide fastener and application have had very long history, and the kind and the pattern of slide fastener are many at present, are widely used in having brought very big convenience to people in the daily lifes such as clothes, shoes and hats, case and bag, tent, toy.Article one, simple slide fastener relates to strap, chain tooth, ends button, pull head and accessory etc. up and down, and each object all relates to different materials.The chain tooth material is the material of consumption maximum, mainly contains metal, plastics and nylon, and wherein used metallic substance mainly is a copper alloy.Copper alloy commonly used is brass and BZn12-24 German silvers such as H65, H68, H85, H90, and market demand is very big.Copper alloy accounts for about 70% of slide fastener cost, and cost and resource problem face a crisis just gradually.Also do not have at present can instead of copper suitable metallic substance, once research uses aluminium alloy or iron alloy to come instead of copper, but the slide fastener intensity that aluminium alloy lenticular wire row miaow is produced is low, for satisfying follow-up surface treatment, need wear metal wire in cingulum production, it is painted to satisfy follow-up plating.Secondly aluminium alloy proportion is little, and slide fastener is light, metal thick and heavy, firmly feel not good enough, it is aesthetic to affect one's power of vision.And iron rule gets rusty easily, and the washing back generates iron rust easily, and pollution clothes can not pass through inspection pin test etc.The raw materials cost of zinc is lower than copper, and proportion is than aluminium height, and is lower slightly than copper, and the smelting temperature of zinc, annealing temperature are all low than copper, so product energy consumption is low.If can use the zinc alloy material instead of copper, the metal sense that not only can keep the copper slide fastener is with graceful, the copper metal that can economize on resources in short supply again, can also reduce the energy consumption cost of raw materials cost and production process, but how realizing substituting is a great problem, its reason is the special production method of slide fastener tooth band, requires used alloy must possess the requirement that suitable performance could satisfy processing.The technician of applicant company studies the deformation zinc alloy of existing standard rolled zinc alloy, production wire rod, finds all can not satisfy this requirement fully.
The production method of slide fastener tooth band mainly contains row's miaow method and die casting.Metallic substance adopts the preparation of row's miaow method, earlier metal is made metal lenticular wire or Y molded lines, through cup, thrusting, rerolling produces slide fastener tooth band on strap, drawing then, polish smooth reason just, the band protection is scalded in painted processing, cleaning, and installation subsequently ends button, accessory and pull head etc.Die casting is mainly used in production non-metallic material slide fastener, also useful in recent years this method is produced the technology of Zinc alloy slide fastener, as Chinese patent application number is 03129499.5 disclosed " slide fastener and preparation method thereof ", it is to be the method that slide fastener is produced in raw material die casting injection molding with the zinc alloy, but this patent does not disclose the composition of zinc alloy; China's application number is 200810070548.8 disclosed " a kind of metal zip fasteners ", the composition of alloy is: Mg 10-20%, Sn 45-65%, Al 20-40%, Zn 1-30%, the production method of slide fastener is basic identical with the die casting mode of producing plastic fastener, directly casts out the zipper teeth tooth with the fused alloy on strap.Because it is much higher that the temperature of metal is compared with plastics, zipper cloth belt is burnt out easily, so die casting speed is very slow, also will carry out water-cooled to strap and slide fastener tooth band, the production cost height, and efficient is low, is not suitable as usual production and applies in batches.The Zinc alloy slide fastener that row's miaow method of no use is in the market produced does not retrieve patent or the document of producing Zinc alloy slide fastener with row's miaow method yet.
Produce slide fastener tooth band with row's miaow method, at present a large amount of use based on lenticular wire, reach the purpose of producing slide fastener with zinc alloy, must provide and to satisfy the lenticular wire that row's miaow method is produced slide fastener tooth band, applied zinc alloy needs good deformation property, can produce round line smoothly, the circle line can be smoothly by draw down or be stretched, lenticular wire can be smoothly by row's miaow operation.The slide fastener of producing except that meeting the mechanical property requirements that slide fastener uses, also needs aftertreatment technology requirements such as painted easily, surface protection and slide fastener finishing.
The operation that lenticular wire row miaow method is produced slide fastener tooth band is: lenticular wire is through row microphone machine, at first cup generates the concaveconvex structure of zipper teeth head, cover cuts into a tooth grain with Y type shape then, and the strap of feeding passes from the gap of Y shape continuously, is pressed on the strap then.The cut surface of lenticular wire stands once to forge and press distortion, is equivalent to the horizontal forging and pressing processing perpendicular to lenticular wire rolling direction, and this direction is the bad direction of rolled products.After forging and pressing, section has become the surface of slide fastener, and cut channel is planished, the chain tooth is evenly full.Said process is disposable to be finished fast, and slide fastener tooth band is then continuously produced, and is highly efficient in productivity.
The operation that Y molded lines row miaow method is produced slide fastener tooth band is: become the Y molded lines with the circle wire rod rolling, through the concaveconvex structure that thrusts, cup generates the zipper teeth head, the strap of feeding passes from the gap of Y shape continuously, forges and presses on strap then.The Y molded lines stands once laterally forging and pressing processing.Said process is disposable to be finished fast, and slide fastener tooth band is then continuously produced, and is highly efficient in productivity.
According to above-mentioned slide fastener tooth band production characteristics, slide fastener with zinc alloy wire must satisfy certain deep drawing quality, have suitable ductility, die-cut property, intensity and certain work hardening.Otherwise, may produce broad-mouthed receptacle for holding liquid schistostoma line, thrust burr, to roll and split, problems such as grating, snaggletooth, distortion, snap-in force difference can not be used.
The copper alloy wire that prior art is widely applied, alloy has good processing characteristics and good mechanical performance, can strengthen by machining deformation, so slide fastener tooth band that row's miaow is produced, the snap-in force of tooth is big, and difficult bun falls, and the horizontal drawing brute force of slide fastener, single tooth displacement brute force can reach high standard.Infer in view of the above, be used to make the zinc alloy of slide fastener, should have the processing characteristics of similar copper alloy, can produce slide fastener tooth band smoothly, and the slide fastener after the drawing has good performance.
Because zinc is close-packed hexagonal structure, slip system is few, and zinc alloy is compared with copper alloy, aluminium alloy, and pressure machining characteristics is poor, the kind of deformation zinc alloy seldom, a large amount of zinc alloys and application thereof are mainly aspect alloy for die casting and die-cast product.
A large amount of patent disclosures a series of cast zinc alloy.Zinc alloy of the prior art substantially on casting alloy design, the not particular requirement of the row of considering miaow technology, the deformation zinc alloy of standard rolled zinc alloy, production wire rod all can not satisfy above-mentioned requirements fully.
For example application number is that 02111557.5 Chinese patent application " Zn-Al-Cu-Mg alloy wire and preparation method thereof " discloses production method and the alloy of producing saxonia metal wire with the method for extrusion stretching, alloying constituent is Al 3.9-4.3%, Cu2.5-3%, Mg0.004-0.01%, surplus is zinc and is not more than 0.05% impurity, do not add other alloy element in addition and change its tissue and performance.Application number is that 200710035063.0 Chinese patent application " a kind of high-strength simple-cutting zinc and preparation technology's base alloy thereof " discloses a kind of high-strength simple-cutting zinc alloy, alloying constituent Cu2.5-2.65%, Al0.20-0.35%, Mg0.45-0.60%, La0.01-0.06%, Ce0.15-0.20%, above-mentioned patent alloy carry out the production of slide fastener lenticular wire or arrange the miaow method and produce slide fastener tooth band, all can not ordinary production, be not suitable for slide fastener.
The Zn-Cu alloy system is main rolled alloy, but simple binary alloy seldom uses, and English Patent GB1041541 " Zinc base alloys " discloses the alloy that adds Ti, Mg, Cr on Zn-Cu alloy basis, does not contain Al.The alloy of disclosed preferred component Cu0.95%, Ti0.21%, Mg0.07%, Cr0.054%, its maximum pulling strength (58000Psi) is 400Mpa, proportionality limit 25000Psi (172MPa).The proportionality limit intensity of this alloy is too low.Through verification experimental verification, this alloy has the working modulus of strain hardening feature less than 30%, and after working modulus was greater than 30%, alloy began to soften, and intensity reduces, and can't satisfy the processing request of slide fastener.
Patent GB1336695 " ZINC ALLOYS " discloses the melting method of a kind of zinc base alloy and this alloy, but the Cd that contains 0.01-0.03% in this alloy, Cd has the effect that improves tensile strength of alloys, yield strength, creep strength and recrystallization temperature, but Cd is poisonous element, environment and health all there is harm, the RoHS instruction limits the limit less than 0.01%, so this alloy is not suitable for being used for and the closely-related occasion of human body.Though illustrate and can substitute with Be or Li that the toxicity of Be when melting is bigger, Li is volatile, scaling loss is big, the difficult control of composition, and cost an arm and a leg, the alloy property after substituting reduces.The content height of this patent refractory element titanium, chromium, though disclose the melting method of alloy, the melting of refractory element is the subject matter that this alloy is used, and very easily generates metal inclusion or thick TiZn15 phase particle, makes the material property control breakdown.After the alloying constituent of this patent disclosure is carried out test of many times, find that the permission pass reduction of this alloy in drawing process is little, and increase along with working modulus, though it is not obvious that yield strength reduces, but the pass reduction that allows is more and more littler, broken easily or drawing-down, be not suitable for tensile deformation.
Patent CN101660070A discloses the alloy that " a kind of Zinc copper titanium complex alloy functional and structural material and preparation method thereof " contains Cu, Al, Ti, B, Fe, the disclosed embodiments alloy, can not be magnetic smoothly by defectiveness behind lenticular wire production or the row's miaow, be not suitable for producing slide fastener.
The present invention is directed to zipper motif and produce the processing requirement and the slide fastener test request of slide fastener, take all factors into consideration material property and processing performance in alloy designs, the alloy of being invented can be produced slide fastener tooth band by the method for row's miaow.
Summary of the invention
Technical problem to be solved by this invention is the zinc alloy that the present situation at prior art provides a kind of alternative copper alloy and can the row's of use miaow method production slide fastener tooth band uses.
Another technical problem to be solved by this invention is the production method that a kind of Zinc alloy slide fastener tooth band is provided at the present situation of prior art.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: this slide fastener tooth band zinc alloy is characterized in that this slide fastener tooth band is composed as follows with the weight of zinc alloy:
Cu 0.5-5％
Al 0-45％
Mg 0.01-0.2％
All the other are X, Zn and unavoidable impurities, and each component sum is 100%;
Wherein, described X is selected from least a among the Si of the Ni of RE, 0.001-1% of Ti, 0.001-0.3% of Bi, 0.01-0.19% of 0.0001-0.5% and 0.001-1%.
Perhaps:
It can also be following scheme that this slide fastener tooth band is formed with the weight of zinc alloy:
Cu 0.5-5％
Al 0-4.5％
Mg 0.01-0.2％
All the other are X, Y, Zn and unavoidable impurities, and each component sum is 100%;
Wherein, described X is selected from least a among the Si of the Ni of RE, 0.001-1% of Ti, 0.001-0.3% of Bi, 0.01-0.19% of 0.0001-0.5% and 0.001-1%;
Described Y is selected from least a among the Y3 of the Y2 of Y1,0.0001-1% of 0.0001-1% and 0.0001-1%; Described Y1 is selected from least a among Mn, Co, Nb, Zr and the Cr, and described Y2 is selected from least a among Ca and the P, and described Y3 is selected from least a among Sb, Te and the Se.
Preferably, can select the ratio of described Cu and Al greater than 1.
Preferred as such scheme, described X is selected from least two kinds among Bi 0.001-0.2%, Ti 0.015-0.18%, RE 0.001-0.15%, Ni0.01-0.3% and the Si 0.001-0.3%.
Preferably, described X comprises Ni and Si at least, and Ni/Si 〉=1.
Perhaps described X comprises Bi and Ti at least, perhaps comprises Bi, Ni and Si at least.
In above-mentioned each scheme, the content of preferred described Al is 0.005-0.5%, and the content of described Mg is 0.03-0.15%; Perhaps
The content of described Cu is 0.6-3.5%, and the content of described Al is 0.51-1.9%, and the content of described Mg is 0.03-0.1%; Perhaps
The content of described Cu is 1-2.45%, and the content of described Al is 0.41-0.99%, and the content of described Mg is 0.03-0.1%; Perhaps
The content of described Cu is 2-2.9%, and the content of described Al is 2-2.7%, and the content of described Mg is 0.03-0.1%.
Add copper among the present invention as main strengthening element, provide alloy good creep-resistant property, the intergranular corrosion susceptibility of alloy is low, and along with the increase of copper content, the intensity of alloy increases.The maximum solid solution degree of copper in zinc is 2.7%, along with the reduction of temperature, separates out the ε phase, and this is a kind of fragility phase, when it distributes with tiny and uniform precipitated phase in matrix, has strengthening effect, and be useful to alloy property; Under the condition that has aluminium to exist, separate out zinc-copper aluminium phase, if this precipitated phase is netted, though alloy can smooth rolling lenticular wire, intensity does not significantly reduce yet, row can crack during miaow, snaggletooth or fall tooth.So the proportioning of the content of copper and copper aluminium is very big to the influence of row's miaow technology.If copper content is too low, the intensity of alloy reduces, and can not satisfy the production of slide fastener tooth band.The present invention draws copper minimum content through test of many times and needs 〉=0.5%, and maximum level should not surpass 5%, preferably is no more than 3.5%.
Al plays strengthening effect in alloy, improve the intensity of alloy, improve the flowability of casting, anti-oxidation is improved pressure machining characteristics, but when doing the test of slide fastener lenticular wire with aluminium zinc, work softening influence obviously and is rolled easily and is split, so such alloy is not suitable for producing the slide fastener lenticular wire, need and reasonably proportioning combination of copper, make the strengthening effect of alloy and work hardening ability reach best.In the alloy that with copper is main alloy element (Cu content is at 0.5-5%), if the content 〉=copper of aluminium, adopt preparation method of the present invention, separate out above-mentioned reticulattion easily, alloy can not be arranged miaow smoothly, some alloys ftracture when draw down, though some alloys can pass through the draw down operation, and can not be by row's miaow operation.So the consumption of Al is very crucial, the ratio of preferably copper aluminium is greater than 1.
Ti can improve mechanical property, creep property, the raising softening temperature of alloy, and they are different to the influence of the weave construction of alloy and mechanical property with different elements coupling in alloy.Ti and Zn, Ti and Cu, Ti and Al may generate high melting compound, and its proportioning will make the particle that generates small and dispersed in the alloy as far as possible, avoids generating big intermediate phase, and needs rational melting technology to guarantee.Drawn by test of many times, according to the proportioning difference of principal element Cu, Al, the minimum addition of Ti is 0.01%, is 0.19% to the maximum, also can not add Ti, selects the element combinations of Ni/Si 〉=1, can reach identical effect.
Magnesium has a spot of solid solubility in zinc, when adding greater than 0.005%Mg in zinc alloy the effect that improves intensity is just arranged, and along with the increase of Mg content, the intensity of alloy improves, softening temperature improves, but fragility increases simultaneously, and the cold deformation performance is poor.Greater than 0.4% alloy, can not carry out the production of lenticular wire circle base for Mg content smoothly, the draw down process is rolled easily and is split, and takes all factors into consideration the influence of this element to alloy, and the content of Mg is selected 0.01-0.2% among the present invention.
Test finds if Ni, Si add with single form, alloy is had strengthening effect, can improve the softening temperature of alloy, and addition separately is respectively Ni0.001-1%, Si 0.001-1%, preferred Ni0.01-0.3%, Si 0.01-0.3%.If add Ni, Si simultaneously, and meet Ni/Si 〉=1, better effects if.
Zipper motif has one to thrust process in row's miaow process, and frequency height, speed are fast, if die-cutting performance is bad, and can't ordinary production.The Bi that is added in the present invention prescription can improve the die-cut property of alloy, cannot not thrust stickingly cutter and the smooth no burr of fracture in the row's of making miaow process.Usually Bi is considered to harmful element in zinc alloy, infringement hot rolling and cold rolling performance, but less to the corrosive influence.The application determines reasonable proportioning by test of many times, 0.0001≤Bi≤0.5%, and preferred 0.001-0.2%, and appropriate design preparation technology have avoided above-mentioned defective, and the over-all properties of alloy are improved.Sb, Te, Se have close effect.
For solving the big problem of zinc base alloy hot extrusion technique difficulty, the present invention adds rare earth elements RE, improves the high temperature ductility and the hot workability of alloy.Rare earth has the effect of reinforced alloys simultaneously, and rare earth compound is mainly poly-partially at crystal boundary, and the electropotential that also changes suppresses the effect of grain boundary corrosion.If the bigger class of the excessive easy formation of content is mingled with or pore, so the maximum level of RE is no more than 0.3% among the present invention.
Alloy Zn content provided by the present invention 〉=99.99%, insensitive to intergranular corrosion, be suitable for producing zipper motif, and satisfy the requirement of row's miaow operation.
Adopt above-mentioned alloy to prepare the method for slide fastener tooth band, it is characterized in that preparation zinc alloy wire earlier, zinc alloy wire can prepare slide fastener tooth band through row's miaow then.Concrete grammar is as follows:
1. prepare burden in proportion, after 500-600 ℃ of melting, again 600-750 ℃ of refining; Adopt medium cooling to produce ingot casting then;
2. adopt the method for extruding, tensile method or horizontal casting to produce circle line base to ingot casting, stretch then and produce circle line base; Circle line base is through at least 2 annealing and refrigerative thermal treatment fast, and it is rolling to carry out multi-pass then, rolls into the lenticular wire finished product at last; Wherein the operation of rolling is carried out anneal at least 1 time; The cold working process comprises thermal treatment.
3. the lenticular wire finished product is arranged miaow through row microphone machine, on strap, is made slide fastener tooth band by roll compacting.
4. round line base directly is rolled into the Y molded lines, makes slide fastener tooth band through row's miaow.
Flux-refining and/or gas refinement are adopted in described refining; The temperature of described extruding is 300-380 ℃, and extrusion ratio is not more than 100.
Step 2. described in circle line base after heat treatment, the working modulus with strain hardening feature is not less than 40%.
In the fusion process, alloy will carry out sufficient alloying smelting and refining.Because most of alloying element such as Cu, Ti, Ni, Si etc. are refractory metals, are refractory elements.Need carry out sufficient alloying smelting and refining, adopt after the 500-600 ℃ of melting again 600-750 ℃ of high temperature refining, refining can adopt flux-refining, inflation refining or flux-refining and inflation refining to be used.The method of take medium cooling, casting at a slow speed, the method that can pass through vertical continuous casting or horizontal continuous-casting is produced the ingot casting of φ 50-200 in batches.Ingot blank after the sawing is in extrusion machine extruding forward or backwards, and extrusion temperature 300-380 ℃, extrusion ratio is not more than 100.Extrusion billet is stretched to round line base through multi-pass, carries out draw down then, rolls at last to pull into lenticular wire.Or circle line base is through being rolled into the Y molded lines.Because the work softening feature of zinc alloy, conventional deformation zinc alloy can multi-pass stretches and does not need process annealing, and for zipper motif production, circle line base need be through at least 2 annealing and refrigerative thermal treatment fast, at least 1 annealing of the lenticular wire operation of rolling.This technology can be improved the pressure machining characteristics of alloy, makes distortion of materials even, and homogeneous microstructure does not have tangible texture influence, and the production of assurance slide fastener tooth band row miaow is carried out smoothly.
Blank after the thermal treatment can not carry out that pickling directly stretches or be rolling.Through heat treated line base, the working modulus with work hardening feature is not less than 40%.
The slide fastener tooth band that row's miaow makes can carry out the painted and protective treatment of postorder, can be processed into distinct colors.
The recrystallization temperature that the present invention has effectively overcome difficult distortion of zinc alloy and zinc alloy is low, dynamic recrystallization can take place in the drawing process, produce problems such as work softening, has good deformation property, can produce round line smoothly, the circle line can be smoothly by draw down or be rolled into the Y molded lines, lenticular wire and Y molded lines can be smoothly by row's miaow operations.The chain belt of producing, painted easily except that the mechanical property requirements that meets the slide fastener application, meet treatment process requirements such as follow-up surface protection and slide fastener finishing.
But compared with prior art, the present invention is directed to the processing requirement of production slide fastener and the performance requriements of slide fastener, in alloy designs, take all factors into consideration material property and processing performance, provide a kind of that can arrange miaow production and have good rolling technology performance, thrust performance, the slide fastener tooth band zinc alloy of cup performance and cold forging performance, filled up the blank that slide fastener tooth band can not adopt zinc alloy row miaow to produce.Compare with the employed alloy phase of production slide fastener in the prior art, the metal sense that not only can keep the copper slide fastener has more characteristics such as raw materials cost is low, the production process energy consumption is little, alternative copper alloy, the copper metal that economizes on resources in short supply with graceful.The slide fastener tooth band simultaneously provided by the present invention characteristics of the preparation method of zinc alloy according to zinc alloy, in the production process of zipper motif, circle line base need be through at least 2 annealing and refrigerative thermal treatment fast, the special treatment process of at least 1 annealed of the lenticular wire operation of rolling, improved the pressure machining characteristics of alloy, made distortion of materials even, homogeneous microstructure, do not have tangible texture influence, guarantee that effectively the production of slide fastener tooth band row miaow carries out smoothly.In a word, alloy of the present invention and production method have guaranteed that alloy not only has good stretch process performance, also have good rolling technology performance, thrust performance, cup performance and cold forging performance, can carry out the production of slide fastener tooth band with row's miaow method smoothly.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail.
Embodiment and Comparative Examples are carried out by the following method: press the alloy formula batching, in the induction furnace melting, ingot casting is after the ingot casting railway carriage is removed surface imperfection, through 300 ℃ of insulations more than a hour, be squeezed into the line base of φ 8.0, stretch, comprise 2 annealing and refrigerative thermal treatment fast through multi-pass, produce lenticular wire circle base, carry out draw down again, the lenticular wire blank pulls into the slide fastener lenticular wire through once annealing, rolling at last and arranges the miaow test.
The composition of each embodiment and Comparative Examples is as shown in table 1, and processing performance and test performance are listed in table 2.
Table 1 embodiment 1-18 chemical ingredients
Table 2 processing performance and test performance
The tooth band that embodiment 1-18 row miaow is produced is crossed the test of inspection pin and all can be crossed 10 grades.
Embodiment 19
By design proportion batching, melting in induction furnace, smelting temperature 500-600 ℃, refining temperature 600-750 ℃ use commercially available refining agent refining, and refining finishes the casting rod of back horizontal casting φ 50.
Cast excellent chemical composition analysis result following (weight %): Cu 2.425 Al 2.072 Mg 0.100 Bi0.0001 Ni0.13%, Si 0.056%.Surplus is Zn.
Cast the length that excellent sawing becomes to design,, be squeezed into the blank of φ 8.0 then 300 ℃ of insulations 2 hours.Extrusion billet stretches through multi-pass, is stretched to draw down circle base, and is middle through 2 annealing and quick cooling process.Draw down is to the lenticular wire blank then, during through once annealing.The lenticular wire blank draws through rolling, and makes the lenticular wire of 0.9 * 3.95 specification.The lenticular wire of making is arranged miaow on row microphone machine, produce slide fastener tooth band.Carry out the finishing of postorder after the drawing of slide fastener tooth band, scald band.The results of property of test is as follows:
Illustrate: the production of chain belt is finished on the copper alloy production line, scalds 180 ℃ of band temperature, and alloy is softened, and flatwise tensile strength decreases, if adopt specific equipment, suitably reduces and scalds the band temperature, just can avoid flatwise tensile strength to reduce.
Flatwise tensile strength: 491-520N during not through boiling hot band
Scald band back horizontal drawing brute force: 340-385N
Single tooth displacement brute force: 45-55N
Folding draws brute force: 285-355N
The light slippery of drawing: 1.4N
Load draws inferior: 700 pairs times
Inspection pin test: cross 10 grades
Embodiment 20
In design mix ratio batching, in the induction furnace melting, smelting temperature 500-600 ℃, refining temperature 600-750 ℃ use the nitrogen refining, iron mould casting.Chemical composition analysis the results are shown in table 3:
Table 3 embodiment 20 chemical ingredientss (weight %)
| Cu | Al | Mg | Bi | Ti | RE | Zn | |
| Embodiment 20 | 1.62 | 0.47 | 0.047 | 0.011 | 0.0329 | 0.012 | Surplus |
Ingot casting 300 ℃ of insulations 2 hours, is squeezed into the blank of φ 8.0 then behind railway carriage, extrusion ratio is not more than 100.Middle through 2 annealing and quick cooling process.Draw down is to the lenticular wire blank then, during through once annealing.The lenticular wire blank draws through rolling, and makes the lenticular wire of 0.9 * 3.95 specification.The lenticular wire of making is arranged miaow on row microphone machine, produce slide fastener tooth band smoothly.After the drawing of slide fastener tooth band, carry out the thick finishing of postorder, carry out painted processing then, through scalding band, protection and finishing, produce copper-colored chain belt again.The results of property of test is listed in table 4:
Table 4 embodiment 20 slide fastener Mechanics Performance Testing results
Inspection pin test: cross 10 grades
Embodiment 21, big ingot extrusion stretching embodiment
To prepare burden in the induction furnace melting, smelting temperature 500-600 ℃, refining temperature 600-750 ℃ use the refining agent refining, and refining finishes the ingot casting of back D.C.casting φ 200.Chemical composition analysis the results are shown in table 5:
Table 5 embodiment 21 chemical ingredientss (weight %):
| Cu | Al | Mg | Ti | Ni | Si | Zn | |
| Embodiment 21 | 2.327 | 0.8326 | 0.0461 | 0.0651 | 0.0216 | 0.0124 | Surplus |
The ingot casting sawing becomes the length of design, at 2500 tons of indirect extrusion machine extruding circle line bases, and induction heating, 360 ℃ of extrusion temperatures, the bull extruding, extrusion ratio is not more than 100.Extrusion billet stretches through multi-pass, and is middle through at least 2 annealing and quick cooling process, and draw down is to the lenticular wire blank then, during through once annealing.The lenticular wire blank draws through rolling, and makes the lenticular wire of 0.9 * 3.95 specification.The lenticular wire of making is arranged miaow on row microphone machine, produce slide fastener tooth band.Slide fastener tooth band carries out painted and surfacecti proteon is handled, and through scalding band, protection and finishing, produces the chain belt of black again.The results of property of test is as follows:
Table 6 embodiment 21 slide fastener Mechanics Performance Testing results:
| Sample | The horizontal drawing brute force, N | The powerful N of single tooth displacement | The test of inspection pin |
| Embodiment 21 | 421.0、375.8、359.8、364.1 | 51.2、43.5、47.5、50.5、 | Cross 10 grades |
Embodiment 22Y molded lines row miaow example
The round line base of embodiment 21 alloys through the rolling Y molded lines of producing smoothly, carries out two-wire row miaow with this Y molded lines, produces zipper strip smoothly.The laggard electroplating surface treatment of finishing.
The horizontal drawing brute force of chain belt reaches more than the 500N, and single tooth displacement brute force reaches more than the 50N.
Claims (13)
1. slide fastener tooth band zinc alloy is characterized in that this slide fastener tooth band is composed as follows with the weight of zinc alloy:
Cu 0.5-5％
Al 0-4.5％
Mg 0.01-0.2％
All the other are X, Zn and unavoidable impurities, and each component sum is 100%;
Wherein, described X is selected from least a among the Si of the Ni of RE, 0.001-1% of Ti, 0.001-0.3% of Bi, 0.01-0.19% of 0.0001-0.5% and 0.001-1%.
2. slide fastener tooth band zinc alloy is characterized in that this slide fastener tooth band is composed as follows with the weight of zinc alloy:
Cu 0.5-5％
Al 0-4.5％
Mg 0.01-0.2％
All the other are X, Y, Zn and unavoidable impurities, and each component sum is 100%;
Wherein, described X is selected from least a among the Si of the Ni of RE, 0.001-1% of Ti, 0.001-0.3% of Bi, 0.01-0.19% of 0.0001-0.5% and 0.001-1%;
Described Y is selected from least a among the Y3 of the Y2 of Y1,0.0001-1% of 0.0001-1% and 0.0001-1%; Described Y1 is selected from least a among Mn, Co, Nb, Zr and the Cr, and described Y2 is selected from least a among Ca and the P, and described Y3 is selected from least a among Sb, Te and the Se.
3. slide fastener tooth band zinc alloy according to claim 1 and 2, the ratio that it is characterized in that described Cu and Al is greater than 1.
4. slide fastener tooth band zinc alloy according to claim 1 and 2 is characterized in that described X is selected from least two kinds among Bi0.001-0.2%, Ti 0.015-0.18%, RE 0.001-0.15%, Ni0.01-0.3% and the Si 0.001-0.3%.
5. slide fastener tooth band zinc alloy according to claim 4 is characterized in that described X comprises Ni and Si at least, and Ni/Si 〉=1.
6. slide fastener tooth band zinc alloy according to claim 4 is characterized in that described X comprises Bi and Ti at least, perhaps comprises Bi, Ni and Si at least.
7. slide fastener tooth band zinc alloy according to claim 1 and 2, the content that it is characterized in that described Al is 0.005-0.5%, the content of described Mg is 0.03-0.15%.
8. slide fastener tooth band zinc alloy according to claim 1 and 2, the content that it is characterized in that described Cu is 0.6-3.5%, and the content of described Al is 0.51-1.9%, and the content of described Mg is 0.03-0.1%.
9. slide fastener tooth band zinc alloy according to claim 1 and 2, the content that it is characterized in that described Cu is 1-2.45%, and the content of described Al is 0.41-0.99%, and the content of described Mg is 0.03-0.1%.
10. slide fastener tooth band zinc alloy according to claim 1 and 2, the content that it is characterized in that described Cu is 2-2.9%, and the content of described Al is 2-2.7%, and the content of described Mg is 0.03-0.1%.
Prepare the method for slide fastener tooth band 11. use with zinc alloy, it is characterized in that comprising the steps: as the slide fastener tooth band of claim 1 to 10
1. prepare burden in proportion, after 500-600 ℃ of melting, again 600-750 ℃ of refining; Adopt medium cooling to produce ingot casting then;
2. adopt the method for extruding or the method for horizontal casting to produce circle line blank to ingot casting, stretch then and produce circle line base; Circle line base is through at least 2 annealing and refrigerative thermal treatment fast, and it is rolling to carry out multi-pass then, rolls into the lenticular wire finished product at last; The operation of rolling is carried out anneal at least 1 time;
3. the lenticular wire finished product is arranged miaow through row microphone machine, on strap, is made slide fastener tooth band by roll compacting.
4. round wire rod rolling becomes the Y molded lines, arranges miaow then, produces slide fastener tooth band.
12. the method for preparing slide fastener tooth band according to claim 11 is characterized in that described refining employing flux-refining and/or gas refinement; The temperature of described extruding is 300-380 ℃, and extrusion ratio is not more than 100.
13. according to claim 11 or the 12 described methods that prepare slide fastener tooth band, it is characterized in that justifying the line base after heat treatment described in step 2., the working modulus with strain hardening feature is not less than 40%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010594685.9A CN102011029B (en) | 2010-12-08 | 2010-12-08 | Zinc alloy for zipper tooth belt and preparation method of zipper tooth belt |
| PCT/CN2011/000129 WO2012075659A1 (en) | 2010-12-08 | 2011-01-27 | Zinc alloy for zipper chain and method for producing zipper chain |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010594685.9A CN102011029B (en) | 2010-12-08 | 2010-12-08 | Zinc alloy for zipper tooth belt and preparation method of zipper tooth belt |
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| CN102011029B CN102011029B (en) | 2014-06-04 |
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| WO (1) | WO2012075659A1 (en) |
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Also Published As
| Publication number | Publication date |
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| CN102011029B (en) | 2014-06-04 |
| WO2012075659A1 (en) | 2012-06-14 |
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