CN103173647B - Making method of elastic copper alloy sheet used for spectacle frame - Google Patents
Making method of elastic copper alloy sheet used for spectacle frame Download PDFInfo
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- CN103173647B CN103173647B CN201110428276.6A CN201110428276A CN103173647B CN 103173647 B CN103173647 B CN 103173647B CN 201110428276 A CN201110428276 A CN 201110428276A CN 103173647 B CN103173647 B CN 103173647B
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- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000956 alloy Substances 0.000 claims abstract description 38
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 37
- 238000000137 annealing Methods 0.000 claims abstract description 31
- 239000010949 copper Substances 0.000 claims abstract description 22
- 238000005098 hot rolling Methods 0.000 claims abstract description 19
- 238000005097 cold rolling Methods 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 6
- 239000006104 solid solution Substances 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 36
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 32
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 238000005266 casting Methods 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 11
- 229910052759 nickel Inorganic materials 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 10
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 238000003801 milling Methods 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000005482 strain hardening Methods 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 3
- 238000010306 acid treatment Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract 3
- 239000011261 inert gas Substances 0.000 abstract 1
- 238000010791 quenching Methods 0.000 abstract 1
- 230000000171 quenching effect Effects 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- 229910000990 Ni alloy Inorganic materials 0.000 description 4
- 235000021050 feed intake Nutrition 0.000 description 4
- 239000012634 fragment Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 4
- 238000005282 brightening Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010956 nickel silver Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000010273 cold forging Methods 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000010939 rose gold Substances 0.000 description 1
- 229910001112 rose gold Inorganic materials 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000013456 study Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Metal Rolling (AREA)
Abstract
The invention discloses a making method of an elastic copper alloy sheet used for a spectacle frame. A component qualified alloy ingot is used to continuously process in the invention. The above alloy comprises 8.5-9.5% by mass of Ni, 5.5-6.5% by mass of Sn, and the balance Cu. The method comprises the following steps: heating to 345-355DEG C, carrying out heat insulation of the ingot in an inert atmosphere for 20-40min, carrying out hot rolling deformation by 15-25%, and covering with carbon at a temperature of 795-805DEG C or homogeneously annealing in an inert gas; carrying out hot rolling cogging of the ingot, wherein the total machining rate is 55-70%; carrying out intermediate destressing annealing in a vacuum annealing furnace in 645-655DEGC/2h; carrying out cold rolling until the thickness of the sheet is 1.2-1.4mm, wherein the total machining rate is 70-80%, and the pass machining rate is 10-15%; and carrying out solid solution and water quenching in the inert atmosphere, and carrying out cold rolling to the thickness of the finished sheet. The finished sheet is straightened, and the surface of the sheet is pickled. The performances of the elastic sheet used for the spectacle frame, which is made through using the method, can reach the performances of elastic CuNi9Sn6 alloy sheets reaching the levels of foreign products.
Description
Technical field
The present invention relates to a kind of novel processing technology and prepare frame material copper alloy CuNi9Sn6 elastic sheet material.
Background technology
Spectacle frame material is generally divided into three kinds, i.e. metal frame, nonmetal frame and natural materials mirror holder.And current metal frame on the market generally has copper alloy, nickelalloy and precious metal.Copper alloy mirror holder mainly contains brass, bronze, German silver, and because its erosion resistance is poor, the easy pig copper is green, easily gets rusty, yielding, but cost is lower, and easily processes, and is usually used in low-grade mirror holder, is the one that price is minimum.Nickelalloy erosion resistance is better, and not easily gets rusty, and physical strength is also better than copper alloy, therefore metal frame adopts being in the great majority of nickel alloy material, is generally used for medium and high classes mirror holder.And based on titanium metal frame in high-grade mirror holder, the purer titanium of its elasticity is good, but light not as pure titanium mirror holder, and pure titanium and its alloys is also be high-grade mirror holder material.Another gold, platinum and alloy etc. are high-grade mirror holder material, and price is also higher.In order to seek high strength and the snappiness of the alloys such as existing nickel, titanium, having again copper alloy easily processes and novel alloy with low cost, has carried out large quantifier elimination both at home and abroad to high-strength novel copper alloy.
It is high strength CuNi9Sn6 alloy that metal spectacle frame designs specially that Optical Co., Ltd of the U.S. 1978 releases.This material is not only easy to processing, and cost is low, and compared with common copper-nickel alloy, intensity and elasticity are all improved largely.The spectacle frame made of this alloy and German silver (CuNi15Zn13) spectacle frame carry out scrag test simultaneously, and the set deformation volume of CuNi9Sn6 alloy is only 1/2nd of German silver.Mitsubishi metal also releases a kind of novel C uNi9Sn6 alloy soon.It is reported, this alloy surface has the beautiful tone of rose gold, its elasticity is equivalent to titanium alloy, and there is cold-forming property and the anti-welding softening performances such as excellent cold forging, cold punching, cold-forming, easy sanding and polishing, a kind of high-ductility, snappiness superlight material, and cost relative to nickelalloy and precious metal lower, be suitable for make metal spectacle frame.Domesticly at present there is no the product that can reach external frame material C uNi9Sn6 copper alloy shell fragment level.And known according to the literature, other various countries adopt different complete processings respectively, with the obtained service requirements meeting frame material.
Summary of the invention
The object of this invention is to provide a kind of preparation method of the copper alloy elastic sheet material for frame, the frame shell fragment utilizing it to make can reach the CuNi9Sn6 sheet alloy shell fragment performance of external imported product level.
For achieving the above object, the present invention takes following design:
For a preparation method for the copper alloy elastic sheet material of frame, the alloy cast ingot qualified with composition continues processing, and wherein, the one-tenth of this copper alloy is grouped into and mass percent is: Ni:9 ± 0.5; Sn:6 ± 0.5; Cu surplus; Its method is as follows:
6) be warming up to 350 ± 5 DEG C, ingot casting carried out insulation 30 ± 10 min under an inert atmosphere, then hot rolling deformation 20 ± 5%, finally cover carbon or rare gas element at 800 ± 5 DEG C of temperature under, carry out homogenizing annealing;
7) ingot casting after homogenizing is carried out hot rolling cogging immediately, general working rate 55 ~ 70%;
8), after hot rolling cogging, in vacuum annealing furnace, middle stress relief annealing 650 ± 5 DEG C/2h is carried out, to remove work hardening;
9) carry out cold rolling after annealing, general working rate 70 ~ 80%, pass reduction 10% ~ 15%, to thickness of slab 1.3 ± 0.1mm;
10) finally 1.3mm sheet material is carried out the solid solution under inert atmosphere and shrend, cold rolling is to the thick 1.2mm of finished product; Wherein, solution treatment 20 ± 10min at 800 ± 5 DEG C.
11) finished product heavy-gauge sheeting is carried out straightening processing and effects on surface carries out the concentrated hydrochloric acid of 30 ~ 37% or the vitriol oil cleanup acid treatment of 60 ~ 70%.
Preferably, in described step 11), the concentration of concentrated hydrochloric acid is 37%, and the concentration of the vitriol oil is 70%.
In described step 6), at 800 ± 5 DEG C of temperature, finally cover the time of homogenizing annealing under carbon or rare gas element is 4 ~ 5.5h.
Because the finished surface after hot rolling cogging is more coarse, in described step 7), can also further finish-milling surface after hot rolling cogging.
The concrete preparation method of the described copper alloy elastic sheet material for frame is as follows:
1) calculate by the ratio range of composition each in copper alloy, weighing prepares oxygen free copper, general nickel, high purity tin material;
2) whole the getting the raw materials ready of oxygen free copper, general nickel and high purity tin is put into alumina crucible, then put into vacuum medium frequency induction furnace;
3) 4 ~ 6Pa is vacuumized; Heat up, regulating power 25KW successively → 35KW → 40KW, and control temperature in vacuum medium frequency induction furnace, to make alloy melting;
4) refining 10 ~ 12 minutes, reduces power subsequently to 25KW, logical argon gas in stove, cast alloys;
5) come out of the stove after cooling 30 ~ 35 minutes, after detection, obtain the alloy cast ingot that composition is qualified.
The present invention, according to CuNi9Sn6 alloy composition proportioning, carries out melting in frequency stove in a vacuum.Vacuum casting can remove gas in alloy and low melting point Volatile Elements, and under high temperature, Ni easily inhales H, causes material embrittlement, affects its mechanical property.And the oxide compound of Sn causes alloy surface comparatively hard, cause the processing of material difficulty.Vacuum casting also can reduce the foreign matter content in CuNi9Sn6 alloy.For shortening homogenization time, to enhance productivity, energy efficient, before homogenizing annealing, give certain deformation.Because alloy processing characteristics is poor, take hot rolling cogging, follow-up rolling then adopts cold rolling, and middle stress relief annealing selects vacuum annealing furnace, avoids surface to be oxidized.Finally straightening processing and surface acid-washing process are carried out to final dimension sheet material, to reach the smooth of imported product and surface-brightening state.
The present invention is that positive exploration work has been done in the production of frame material C uNi9Sn6 copper alloy shell fragment, comprises alloy heat treatment process and complete processing and surface treatment and studies, and achieve comparatively ideal effect.The breaking tenacity σ b > 600MPa of the copper alloy elastic sheet material for frame that the present invention makes, is easy to cold-formed, and does not occur crack to vertical rolling to time bending in 90 ° along rolling.Product appearance reaches external product level simultaneously.
Advantage of the present invention is:
1, CuNi9Sn6 copper alloy casting ingot of the present invention is vacuum casting, surface-brightening, and degree of oxidation is minimum, for good basis is established in the sequent surface process of alloy;
2, before CuNi9Sn6 copper alloy casting ingot homogenizing annealing, give certain hot rolling deformation, shorten homogenization time, improve production efficiency, save energy consumption;
3, CuNi9Sn6 copper alloy casting ingot is carried out the homogenizing annealing under protective atmosphere; eliminate dendritic segregation and dissolve non-equilibrium phase; reduce the danger of slab hot-rolling cracking; improve the edge quality of strips or plates; improve material plasticity, meanwhile, owing to reducing the resistance to deformation of material; also can reduce deformation work consumption, improve the production efficiency of equipment.Under protective atmosphere, prevent the oxidation of CuNi9Sn6 alloy surface, generation that Ni inhales H and harder SnO2 oxide film.Directly come out of the stove after homogenizing annealing completes and carry out the hot rolling cogging of aximal deformation value, decrease rolling pass;
4,800 ± 5 DEG C/20min solid solution under inert atmosphere is adopted to the sheet material close to final dimension, shrend, last cold rolling is to the thick thermal treatment process of finished product, have successfully been obtained the mechanical property meeting product requirement: product breaking tenacity σ b > 600MPa, be easy to cold-formed, and do not occur crack to vertical rolling to time bending in 90 ° along rolling;
5, straightening processing and surface acid-washing process are carried out to final dimension sheet material, make product reach the smooth of imported product and surface-brightening state.Containing Sn in CuNi9Sn6 alloy, easily oxidation occur and form the SnO2 being difficult to remove, this oxide compound is insoluble in water, alcohol, diluted acid and alkali lye, but can be dissolved in the vitriol oil or concentrated hydrochloric acid, therefore adopts the vitriol oil or concentrated hydrochloric acid to scrub sheet alloy surface.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further.
embodiment 1:
Adopt following preparation method, feed intake 3kg, and oxygen free copper, general nickel and high purity tin carry out proportioning by the composition of Ni:Sn:Cu=9:6:85, are respectively Ni, 270g; Sn, 180g; Cu, 2550g, and molten alloy.
Concrete preparation technology is as follows:
1) by proportioning for each raw material;
2) oxygen free copper got ready, general nickel and high purity tin starting material are put into alumina crucible, then put into vacuum medium frequency induction furnace;
3) vacuumize 5Pa, heat up, power is adjusted to 25KW → 35KW → 40KW successively, and 5 minutes, interval, melts to impel alloy comprehensively;
4) after furnace charge all melts, refining 10 minutes; Reduce power to 25KW, pour argon gas, start casting;
5) come out of the stove after cooling 30 minutes, and be water-cooled to room temperature, cast ingot dimension is thick 20mm, wide 130mm;
6) ingot blank is carried out under an inert atmosphere 350 DEG C/30min to be incubated, then start rolling, thickness of slab is by 20mm → 18.6mm → 17.0mm, and then carry out covering carbon homogenizing annealing at 800 ~ 805 DEG C of temperature, the time is 4h;
7) carry out hot rolling cogging immediately to thickness of slab 8.6mm, cogging is complete, and milling face to thickness is 7mm, to remove surface film oxide;
8), after hot rolling cogging, in vacuum annealing furnace, middle stress relief annealing 650 DEG C/2h is carried out, to remove work hardening;
9) milling face is complete, stress relief annealing 650 DEG C/2h is carried out in vacuum annealing furnace, then cold rolling, thickness of slab is by 7mm → 6.0mm → 5.3mm → 4.6mm → 4.2mm → 3.8mm → 3.5mm, carry out middle stress relief annealing 650 DEG C/2h, 3.5mm → 3.0mm → 2.5mm → 2.0mm → 1.5mm → 1.3mm again;
10) then 1.3mm sheet material is carried out the 800 DEG C/20min solid solution under inert atmosphere, shrend, cold rolling is to the thick 1.2mm of finished product;
11) adopted by finished product straightener to carry out template aligning, alloy surface planeness reaches imported product standard.Finally the sheet material after aligning being immersed concentration is the concentrated hydrochloric acid of 37%, and uses copper brush to scrub its surface, then rinses with water, and to remove zone of oxidation and the spot on surface, surface quality reaches imported product surface standard.
embodiment 2:
Method is with embodiment 1, and difference is: feed intake 3kg, and oxygen free copper, general nickel and high purity tin carry out proportioning by the composition of Ni:Sn:Cu=9.5:6.5:85, are respectively Ni, 285g; Sn, 180g; Cu, 2535g.
embodiment 3:
Method is with embodiment 1, and difference is: feed intake 3kg, and oxygen free copper, general nickel and high purity tin carry out proportioning by the composition of Ni:Sn:Cu=9:6.5:84.5, are respectively Ni, 270g; Sn, 195g; Cu, 2535g.
embodiment 4:
Method is with embodiment 1, and difference is: feed intake 3kg, and oxygen free copper, general nickel and high purity tin carry out proportioning by the composition of Ni:Sn:Cu=9.5:5.5:85, are respectively Ni, 285g; Sn, 165g; Cu, 2550g.
embodiment 5:
Method is with embodiment 1, and difference is following steps:
6) ingot blank is carried out under an inert atmosphere 350 DEG C/30min to be incubated, then start rolling, thickness of slab, by 20mm → 18.2mm → 16.8mm → 15.8, then carries out homogenizing annealing under rare gas element;
7) carry out hot rolling cogging immediately to 7mm, cogging is complete, and milling face to thickness is 5.0mm, to remove surface film oxide;
8), after hot rolling cogging, in vacuum annealing furnace, middle stress relief annealing 650 DEG C/2h is carried out, to remove work hardening;
9) milling face is complete, stress relief annealing 650 DEG C/2h is carried out in vacuum annealing furnace, then carry out cold rolling according to pass deformation, thickness of slab is by 5.0mm → 4.6mm → 4.2mm → 3.8mm → 3.5mm, carry out middle stress relief annealing 650 DEG C/2h again, continue cold rolling 3.5mm → 3.0mm → 2.5mm → 2.0mm → 1.5mm → 1.3mm subsequently.
embodiment 6:
Method is with embodiment 1, and difference is: in step 6), is carried out under an inert atmosphere by ingot blank being incubated 40 min at 345 DEG C of temperature.
embodiment 7:
Method is with embodiment 1, and difference is: in step 11), and it is the concentrated hydrochloric acid of 30% that the sheet material after aligning is immersed concentration.
embodiment 8:
Method is with embodiment 1, and difference is: in step 11), and it is the vitriol oil of 70% that the sheet material after aligning is immersed concentration.
embodiment 9:
Method is with embodiment 1, and difference is: in step 11), and it is the vitriol oil of 60% that the sheet material after aligning is immersed concentration.
The various embodiments described above can in addition some changes under not departing from the scope of the present invention, therefore above explanation comprises and should be considered as exemplary, and is not used to the protection domain limiting the present patent application patent
Claims (4)
1. for a preparation method for the copper alloy elastic sheet material of frame, the alloy cast ingot qualified to composition is processed, and wherein, the one-tenth of this copper alloy is grouped into and mass percent is: Ni:9 ± 0.5%; Sn:6 ± 0.5%; Cu surplus; It is characterized in that method is as follows:
First prepare described alloy cast ingot:
1) calculate by the ratio range of composition each in copper alloy, weighing prepares oxygen free copper, general nickel, high purity tin material;
2) whole the getting the raw materials ready of oxygen free copper, general nickel and high purity tin is put into alumina crucible, then put into vacuum medium frequency induction furnace;
3) 4 ~ 6Pa is vacuumized; Heat up, regulating power 25KW successively → 35KW → 40KW, and control temperature in vacuum medium frequency induction furnace, to make alloy melting;
4) refining 10 ~ 12 minutes, reduces power subsequently to 25KW, logical argon gas in stove, cast alloys;
5) come out of the stove after cooling 30 ~ 35 minutes, after detection, obtain the alloy cast ingot that composition is qualified;
Alloy cast ingot qualified for composition is processed further:
6) be warming up to 350 ± 5 DEG C, under an inert atmosphere ingot casting carried out insulation 30 ± 10 min, then hot rolling deformation 20 ± 5%, finally cover carbon or rare gas element at 800 ± 5 DEG C of temperature under, carry out homogenizing annealing;
7) ingot casting after homogenizing is carried out hot rolling cogging immediately, general working rate 55 ~ 70%;
8), after hot rolling cogging, in vacuum annealing furnace, middle stress relief annealing 650 ± 5 DEG C/2h is carried out, to remove work hardening;
9) carry out cold rolling after annealing, general working rate 70 ~ 80%, pass reduction 10% ~ 15%, to thickness of slab 1.3 ± 0.1mm;
10) finally 1.3mm sheet material is carried out the solid solution under inert atmosphere and shrend, cold rolling is to the thick 1.2mm of finished product; Wherein, solution treatment 20 ± 10min at 800 ± 5 DEG C;
11) finished product heavy-gauge sheeting is carried out straightening processing and effects on surface carry out concentration be 30 ~ 37% concentrated hydrochloric acid or concentration be 60 ~ 70% vitriol oil cleanup acid treatment.
2. the preparation method of the copper alloy elastic sheet material for frame according to claim 1, is characterized in that: in described step 11), the concentration of concentrated hydrochloric acid is 37%, the concentration of the vitriol oil is 70%.
3. the preparation method of the copper alloy elastic sheet material for frame according to claim 1, is characterized in that: in described step 6), and at 800 ± 5 DEG C of temperature, finally cover the time of homogenizing annealing under carbon or rare gas element is 4 ~ 5.5h.
4. the preparation method of the copper alloy elastic sheet material for frame according to claim 1, is characterized in that: in described step 7), the further finish-milling face of the laggard row of hot rolling cogging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110428276.6A CN103173647B (en) | 2011-12-20 | 2011-12-20 | Making method of elastic copper alloy sheet used for spectacle frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110428276.6A CN103173647B (en) | 2011-12-20 | 2011-12-20 | Making method of elastic copper alloy sheet used for spectacle frame |
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| CN103173647B true CN103173647B (en) | 2015-05-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105483428A (en) * | 2014-09-16 | 2016-04-13 | 陈国良 | Production process of cupronickel spectacle frame |
| CN106636731B (en) * | 2016-10-31 | 2018-10-23 | 江西凯安智能股份有限公司 | High intensity height extends the processing technology of brass alloys band |
| WO2018235458A1 (en) * | 2017-06-22 | 2018-12-27 | 日本精線株式会社 | Ultrafine copper alloy wire for spring, and method for producing same |
| CN113857251B (en) * | 2021-09-26 | 2024-03-22 | 马鞍山钢铁股份有限公司 | Cold rolling device and cold rolling method for electrical steel with increased reduction rate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4046596A (en) * | 1975-06-27 | 1977-09-06 | American Optical Corporation | Process for producing spectacle frames using an age-hardenable nickel-bronze alloy |
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Inventor after: Chen Wenjing Inventor after: Wang Wei Inventor after: Zhang Zhen Inventor after: Zhao Hongchao Inventor after: Chen Lijian Inventor before: Chen Wenjing Inventor before: Wang Wei Inventor before: Zhang Zhen Inventor before: Zhao Hongchao Inventor before: Chen Lijian |