CN103643073A - Silver alloy material with characteristics of oxidation-sulfurization resistance and high temperature resistance - Google Patents
Silver alloy material with characteristics of oxidation-sulfurization resistance and high temperature resistance Download PDFInfo
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- CN103643073A CN103643073A CN201310589530.XA CN201310589530A CN103643073A CN 103643073 A CN103643073 A CN 103643073A CN 201310589530 A CN201310589530 A CN 201310589530A CN 103643073 A CN103643073 A CN 103643073A
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- 229910001316 Ag alloy Inorganic materials 0.000 title claims abstract description 69
- 238000005987 sulfurization reaction Methods 0.000 title claims abstract description 12
- 239000000956 alloy Substances 0.000 title abstract description 15
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 21
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052709 silver Inorganic materials 0.000 claims abstract description 20
- 239000004332 silver Substances 0.000 claims abstract description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 239000010949 copper Substances 0.000 claims abstract description 12
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 10
- 239000011777 magnesium Substances 0.000 claims abstract description 10
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 10
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 9
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims abstract description 9
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052790 beryllium Inorganic materials 0.000 claims abstract description 9
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052796 boron Inorganic materials 0.000 claims abstract description 9
- 229910052733 gallium Inorganic materials 0.000 claims abstract description 9
- 229910052738 indium Inorganic materials 0.000 claims abstract description 9
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 9
- 239000011733 molybdenum Substances 0.000 claims abstract description 9
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 9
- 239000010703 silicon Substances 0.000 claims abstract description 9
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 9
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 9
- 239000011701 zinc Substances 0.000 claims abstract description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 5
- 239000011572 manganese Substances 0.000 claims abstract description 5
- 239000003963 antioxidant agent Substances 0.000 claims description 10
- 230000003078 antioxidant effect Effects 0.000 claims description 10
- 235000006708 antioxidants Nutrition 0.000 claims description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000005275 alloying Methods 0.000 claims description 8
- 239000004411 aluminium Substances 0.000 claims description 8
- 239000000470 constituent Substances 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000002845 discoloration Methods 0.000 abstract description 6
- 238000011161 development Methods 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 21
- -1 1.2 grams Chemical compound 0.000 description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 12
- 230000003647 oxidation Effects 0.000 description 9
- 238000007254 oxidation reaction Methods 0.000 description 9
- 239000007921 spray Substances 0.000 description 9
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 7
- 229910052737 gold Inorganic materials 0.000 description 7
- 239000010931 gold Substances 0.000 description 7
- 125000000218 acetic acid group Chemical class C(C)(=O)* 0.000 description 6
- 229910052786 argon Inorganic materials 0.000 description 6
- 238000005097 cold rolling Methods 0.000 description 6
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 6
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 4
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000000113 differential scanning calorimetry Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 235000010265 sodium sulphite Nutrition 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture 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
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 229910000714 At alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- NEIHULKJZQTQKJ-UHFFFAOYSA-N [Cu].[Ag] Chemical compound [Cu].[Ag] NEIHULKJZQTQKJ-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- PQTCMBYFWMFIGM-UHFFFAOYSA-N gold silver Chemical compound [Ag].[Au] PQTCMBYFWMFIGM-UHFFFAOYSA-N 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910000898 sterling silver Inorganic materials 0.000 description 1
- 239000010934 sterling silver Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The invention provides a silver alloy material with characteristics of oxidation-sulfurization resistance and high temperature resistance. The silver alloy material is characterized by comprising, by weight, 9.25-9.90 parts of silver, 1-3 parts of copper, 1.2-3.5 parts of zinc, 0.2-3 parts of boron, 0.1-1 part of aluminum, 0.2-1 part of gallium, 0.1-1.5 parts of indium, 0.02-1 part of silicon, 0.1-0.7 part of beryllium, 0.2-2 parts of nickel, 0.1-2 parts of magnesium, 0.03-1 part of yttrium, 0.2-1 part of molybdenum, and 0.2-3 parts of manganese. According to the present invention, the alloy components are added, such that the high temperature resistance of the silver alloy is improved, the difficult problem that the silver alloy is easily subjected to oxidation-sulfurization discoloration during the existing social silver alloy production process is solved while the high temperature loss during the production process is reduced, the production cost is substantially reduced, and the great development prospect is provided.
Description
Technical field
The present invention relates to chemical material field, relate in particular to the resistant to elevated temperatures silver alloy of a kind of anti-oxidant sulfuration.
Background technology
China is a country of advocating the culture of gold, silver and jewelry ornaments, along with in China the opening of gold silver market, the downward of all kinds of jewelry inwaries, the sustainable growth of national economy, common people's consuming capacity improves constantly, China has become the third-largest gold, silver and jewelry ornaments and has consumed big country, is only second to India, the U.S., and wherein karat gold and anti-discolouring 925 silver alloys ornaments are that market demand is fastest-rising.According to world authoritative expert, predict, along with domestic and international gold, silver and jewelry ornaments industry deepening continuously in aspect exchange and cooperation such as theory, technology, technique, the talents, China's gold, silver and jewelry ornaments market potential and industry development space are very huge, and the average annual amplification of gold, silver and jewelry ornaments industry will remain on more than 6%.Pure argent hardness is low, there is ductility, be not easy to manufacture moulding, and be easy to oxidation stain, be not suitable in the middle of the processing that is used in ornaments, artwork and tableware thereof, so can be chosen in the silver of certainweight ratio of component, add some other composition materials in the middle of manufacturing.
Sterling silver alloy alloy is the silver-copper binary alloy forming with copper alloy element, wherein silver is 92.5wt%, copper is 7.5wt%, common our 925 alleged silver medals namely, although added the silver alloys of copper, improved certain hardness, but be still equally easy to sulphide discoloration, in order to prevent silver-colored sulphide discoloration, often add the precious metals such as gold, platinum, palladium, rhodium, osmium, iridium, rhodium, but be only used to prevent that thereby silver-colored sulphide discoloration from adding these precious metals, cause production cost to occupy high, lose more than gain, be difficult to be accepted by masses.
Along with scientific and technological development, the research of the R&D personnel is found, more really by base metal, with silver-colored alloy material, can be improved slightly the hardness and the ability of improving its anti-sulphide discoloration of silver alloys, but the material result of gained is, highly significant is with obvious.
Summary of the invention
In order obviously to improve the anti-oxidant sulphide discoloration ability of silver alloy, improve its resistance to elevated temperatures, increase the design freedom of its style, be applied to better in the middle of the production technique such as ornaments, artwork, the invention provides the resistant to elevated temperatures silver alloy of a kind of anti-oxidant sulfuration, described silver alloy is comprised of the alloying constituent of following components by weight percent:
Silver 9.25-9.90,
Copper 1-3,
Zinc 1.2-3.5,
Boron 0.2-3,
Aluminium 0.1-1,
Gallium 0.2-1,
Indium 0.1-1.5,
Silicon 0.02-1,
Beryllium 0.1-0.7,
Nickel 0.2-2,
Magnesium 0.1-2,
Yttrium 0.03-1,
Molybdenum 0.2-1,
Manganese 0.2-3.
Preferably, described have a resistant to elevated temperatures silver alloy of anti-oxidant sulfuration, by the alloying constituent of following components by weight percent, forms silver 9.58, copper 1, zinc 1.2, boron 0.3, aluminium 0.2, gallium 0.2, indium 0.1, silicon 0.02, beryllium 0.2, nickel 0.2, magnesium 0.3, yttrium 0.08, molybdenum 0.2, manganese 0.2.
The effect of the various elements that add in silver is respectively: added copper, strengthened the hardness of alloy; Zinc, as the alternative metals of copper, not only can reduce alloy melting point, can make reductor, improves the mobility of melt, also has bleaching effect; Boron, can reduce the surface tension of alloy melt, makes melt-mixing even; Aluminium, can improve the tensile strength of alloy on the one hand effectively with elongation rate, can put forward heavy alloyed high-temperature behavior on the other hand; Gallium, resistivity is little, and temperature coefficient of resistance is little, puies forward heavy alloyed intensity and hardness; Indium, fusing point is low, during melting, first melts, and solid-state, with surface, forms liquid film, can improve the forging property of alloy; Add rare earth element silicon and yttrium, thereby increased the dislocation density that silver alloy grain boundary area has improved alloy, strengthened hardness of cast form with workhardness; Beryllium, is unique stable light metal with higher melt, has good electroconductibility, thermal conductivity, high-temperature mechanical property and scale resistance, can form protective membrane at alloy surface in the middle of adding alloy to, avoids its oxidation; Nickel, having added a certain proportion of nickel can refinement silver alloy crystal grain, has improved hardness, wear resistance and the high temperature resistance scaling loss ability of silver alloy; Magnesium, has added magnesium and can make silver alloys recrystallization temperature be linear raising, and hardness improves, and improves the mechanical property of silver alloys; Molybdenum, makes silver alloy have good wear resistance and ductility; Manganese, has reduced the fusing point of silver alloys, has improved the hardness of silver alloys, has improved the erosion resistance of silver alloys.
The resistant to elevated temperatures silver alloy of a kind of anti-oxidant sulfuration provided by the invention, there is following beneficial effect: adopt components by weight percent between 9.25-9.90, thereby particularly preferably be components by weight percent and in silver-colored accounting example, occupy greatly value advantage on the one hand at 9.58 silver-colored composition, on the silver-colored basis of this ratio, add other compositions on the other hand, when making the mechanical property of alloy obtain palpability to improve, solved the difficult problem that silver alloys in the middle of existing social production of silver alloys technique is easy to oxidation of sulfureted variable color; The rare earth element finally adding makes the fusing point of silver alloys low with other alloying constituents are collaborative, has improved the resistance to elevated temperatures of silver alloys, has reduced in process of production high temperature consumption, greatly reduces production cost, has very large development prospect.
Embodiment
Below the present invention is described in further detail, to make those skilled in the art can implement according to this with reference to specification sheets word.
Embodiment 1
Take 9.58 grams of silver, 1 gram of copper, 1.2 grams, zinc, 0.3 gram of boron, 0.2 gram, aluminium, 0.2 gram of gallium, 0.1 gram of indium, 0.02 gram of silicon, 0.2 gram of beryllium, 0.2 gram, nickel, 0.3 gram, magnesium, 0.08 gram of yttrium, 0.2 gram of molybdenum, 0.2 gram, manganese, the alloying constituent taking being put into melting in the smelting furnace of 1000 degrees Celsius manufactures 30 minutes, the button-type ingot casting of non-consumable electrode arc melting is put under the situation that adopts argon shield to 720 degrees Celsius of insulations of resistance furnace 4 hours, at Sisma type cold-rolling mill, be rolled into the thin slice that 2mm is thick, then put 700 degrees Celsius of treasured in high temperature box type resistance furnace into and be incubated 1 hour, water-cooled is to room temperature, carry out cold deformation processing, the thin slice of gained 2mm is continued to Sisma type cold-rolling mill and be rolled into the thin slice that 1.4mm is thick, then put 800 degrees Celsius of treasured in high temperature box type resistance furnace into and be incubated 30 minutes, water-cooled to room temperature is carried out solution treatment again.Hardness test: the silver alloy of handling well is carried out on the semi-automatic microhardness tester of HXS-1000AK type, select room temperature, 0.2 gram of loaded load, 20 seconds loading times, survey ten points, to average, the hardness value that draws silver alloy is 110.2HV; Dsc analysis: be high-purity argon gas at protective atmosphere, Range of measuring temp is 50-640 degree Celsius, and scanning speed is 20c/min, condition under silver alloy is carried out to differential scanning calorimetric analysis; Then by carry out OM observation in olympus PMG3 type, in Quanta400 type, carry out SEM observation, on JEM-2000FXII, carry out tem observation, finally carry out XRD analysis, reach a conclusion, the silver alloy producing can not increase substantially the stacking fault energy of matrix silver, microstructure is without considerable change, and in dentrite, shrinkage cavity reduces, and has strengthened the mobility of silver alloy, reduce the surface tension of silver alloy, improved its mold filling performance; Anti-sulfuration test: putting the silver alloy of preparing into concentration is that 5% sodium sulphite soaks 48 hours, and variable color does not occur silver alloys; Anti-oxidant test: 24 hours neutral salt spray tests, there is not variable color in silver alloy, 24 hours acetic acid salt spray tests, there is not metachromasia in silver alloy, 24 hours mantoquitas accelerate acetic acid salt spray test silver alloy oxidation area and account for 26% of the total area, 24 hours alternation salt-fog tests, silver alloy oxidation area accounts for 53% of the total area.
Embodiment 2
Take 9.58 grams of silver, 1 gram of copper, 1.2 grams, zinc, 0.3 gram of boron, 0.2 gram, aluminium, 0.2 gram of gallium, 0.1 gram of indium, 0.02 gram of silicon, 0.2 gram of beryllium, 0.2 gram, nickel, 0.3 gram, magnesium, 0.08 gram of yttrium, 0.2 gram of molybdenum, 0.2 gram, manganese, the alloying constituent taking being put into melting in the smelting furnace of 1050 degrees Celsius manufactures 30 minutes, the button-type ingot casting of non-consumable electrode arc melting is put under the situation that adopts argon shield to 750 degrees Celsius of insulations of resistance furnace 3 hours, at Sisma type cold-rolling mill, be rolled into the thin slice that 2mm is thick, then put 700 degrees Celsius of treasured in high temperature box type resistance furnace into and be incubated 1 hour, water-cooled is to room temperature, carry out cold deformation processing, the thin slice of gained 2mm is continued to Sisma type cold-rolling mill and be rolled into the thin slice that 1.4mm is thick, then put 750 degrees Celsius of treasured in high temperature box type resistance furnace into and be incubated 30 minutes, water-cooled to room temperature is carried out solution treatment again.Hardness test: the silver alloy of handling well is carried out on the semi-automatic microhardness tester of HXS-1000AK type, select room temperature, 0.2 gram of loaded load, 20 seconds loading times, survey ten points, to average, the hardness value that draws silver alloy is 130.4HV; Dsc analysis: be high-purity argon gas at protective atmosphere, Range of measuring temp is 50-640 degree Celsius, and scanning speed is 20c/min, condition under silver alloy is carried out to differential scanning calorimetric analysis; Then by carry out OM observation in olympus PMG3 type, in Quanta400 type, carry out SEM observation, on JEM-2000FXII, carry out tem observation, finally carry out XRD analysis, reach a conclusion, the silver alloy producing can not increase substantially the stacking fault energy of matrix silver, microstructure is without considerable change, and in dentrite, shrinkage cavity reduces, and has strengthened the mobility of silver alloy, reduce the surface tension of silver alloy, improved its mold filling performance; Anti-sulfuration test: putting the silver alloy of preparing into concentration is that 5% sodium sulphite soaks 48 hours, and variable color does not occur silver alloys; Anti-oxidant test: 24 hours neutral salt spray tests, there is not variable color in silver alloy, 24 hours acetic acid salt spray tests, there is not metachromasia in silver alloy, 24 hours mantoquitas accelerate acetic acid salt spray test silver alloy oxidation area and account for 15% of the total area, 24 hours alternation salt-fog tests, silver alloy oxidation area accounts for 33% of the total area.
Embodiment 3
Take 9.58 grams of silver, 1 gram of copper, 1.2 grams, zinc, 0.3 gram of boron, 0.2 gram, aluminium, 0.2 gram of gallium, 0.1 gram of indium, 0.02 gram of silicon, 0.2 gram of beryllium, 0.2 gram, nickel, 0.3 gram, magnesium, 0.08 gram of yttrium, 0.2 gram of molybdenum, 0.2 gram, manganese, the alloying constituent taking being put into melting in the smelting furnace of 1000 degrees Celsius manufactures 30 minutes, the button-type ingot casting of non-consumable electrode arc melting is put under the situation that adopts argon shield to 800 degrees Celsius of insulations of resistance furnace 4 hours, at Sisma type cold-rolling mill, be rolled into the thin slice that 2mm is thick, then put 740 degrees Celsius of treasured in high temperature box type resistance furnace into and be incubated 1 hour, water-cooled is to room temperature, carry out cold deformation processing, the thin slice of gained 2mm is continued to Sisma type cold-rolling mill and be rolled into the thin slice that 1.4mm is thick, then put 800 degrees Celsius of treasured in high temperature box type resistance furnace into and be incubated 30 minutes, water-cooled to room temperature is carried out solution treatment again.Hardness test: the silver alloy of handling well is carried out on the semi-automatic microhardness tester of HXS-1000AK type, select room temperature, 0.2 gram of loaded load, 20 seconds loading times, survey ten points, to average, the hardness value that draws silver alloy is 98.6HV; Dsc analysis: be high-purity argon gas at protective atmosphere, Range of measuring temp is 50-640 degree Celsius, and scanning speed is 20c/min, condition under silver alloy is carried out to differential scanning calorimetric analysis; Then by carry out OM observation in olympus PMG3 type, in Quanta400 type, carry out SEM observation, on JEM-2000FXII, carry out tem observation, finally carry out XRD analysis, reach a conclusion, the silver alloy producing can not increase substantially the stacking fault energy of matrix silver, microstructure is without considerable change, and in dentrite, shrinkage cavity reduces, and has strengthened the mobility of silver alloy, reduce the surface tension of silver alloy, improved its mold filling performance; Anti-sulfuration test: putting the silver alloy of preparing into concentration is that 5% sodium sulphite soaks 48 hours, and variable color does not occur silver alloys; Anti-oxidant test: 24 hours neutral salt spray tests, there is not variable color in silver alloy, 24 hours acetic acid salt spray tests, there is not metachromasia in silver alloy, 24 hours mantoquitas accelerate acetic acid salt spray test silver alloy oxidation area and account for 23% of the total area, 24 hours alternation salt-fog tests, silver alloy oxidation area accounts for 46% of the total area.
Although embodiment of the present invention are open as above, but it is not restricted to listed utilization in specification sheets and embodiment, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other modification, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the embodiment describing.
Claims (2)
1. the resistant to elevated temperatures silver alloy of anti-oxidant sulfuration, is characterized in that, described silver alloy is comprised of the alloying constituent of following components by weight percent:
Silver 9.25-9.90,
Copper 1-3,
Zinc 1.2-3.5,
Boron 0.2-3,
Aluminium 0.1-1,
Gallium 0.2-1,
Indium 0.1-1.5,
Silicon 0.02-1,
Beryllium 0.1-0.7,
Nickel 0.2-2,
Magnesium 0.1-2,
Yttrium 0.03-1,
Molybdenum 0.2-1,
Manganese 0.2-3.
2. have as described in claim 1 the silver alloy of excellent mechanical performances, it is characterized in that, described silver alloy forms silver 9.58 by the alloying constituent of following components by weight percent, copper 1, zinc 1.2, boron 0.3, aluminium 0.2, gallium 0.2, indium 0.1, silicon 0.02, beryllium 0.2, nickel 0.2, magnesium 0.3, yttrium 0.08, molybdenum 0.2, manganese 0.2.
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| CN108866362A (en) * | 2018-07-24 | 2018-11-23 | 深圳市中科睿金贵材科技有限公司 | One kind is for roller mill rolling silver wire and preparation method thereof |
| CN109022891A (en) * | 2018-09-17 | 2018-12-18 | 深圳市品越珠宝有限公司 | A kind of ornaments silver alloy and preparation method thereof |
| CN109112386A (en) * | 2018-09-20 | 2019-01-01 | 张家港市勇峰精密机械有限公司 | A kind of high performance durable silver-based precision hardware material |
| CN115261664A (en) * | 2022-09-17 | 2022-11-01 | 深圳市瑜悦珠宝有限公司 | Nickel-free and zinc-free gold alloy and preparation method and application thereof |
| CN115558822A (en) * | 2022-07-19 | 2023-01-03 | 朱言军 | Novel gold-silver alloy material and preparation method thereof |
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| CN1073292A (en) * | 1991-12-12 | 1993-06-16 | 中国有色金属工业总公司昆明贵金属研究所 | Silver based alloy electric contact material |
| CN1339614A (en) * | 2000-08-25 | 2002-03-13 | 斯特恩－利奇公司 | Anti-color changing hardenable pure silver alloy |
| WO2006132410A1 (en) * | 2005-06-10 | 2006-12-14 | Tanaka Kikinzoku Kogyo K.K. | Silver alloy for electrode, wiring and electromagnetic shielding |
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| CN1073292A (en) * | 1991-12-12 | 1993-06-16 | 中国有色金属工业总公司昆明贵金属研究所 | Silver based alloy electric contact material |
| CN1339614A (en) * | 2000-08-25 | 2002-03-13 | 斯特恩－利奇公司 | Anti-color changing hardenable pure silver alloy |
| WO2006132410A1 (en) * | 2005-06-10 | 2006-12-14 | Tanaka Kikinzoku Kogyo K.K. | Silver alloy for electrode, wiring and electromagnetic shielding |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108149056A (en) * | 2018-03-09 | 2018-06-12 | 郴州市金贵银业股份有限公司 | A kind of silver alloy and preparation method |
| CN108866362A (en) * | 2018-07-24 | 2018-11-23 | 深圳市中科睿金贵材科技有限公司 | One kind is for roller mill rolling silver wire and preparation method thereof |
| CN109022891A (en) * | 2018-09-17 | 2018-12-18 | 深圳市品越珠宝有限公司 | A kind of ornaments silver alloy and preparation method thereof |
| CN109112386A (en) * | 2018-09-20 | 2019-01-01 | 张家港市勇峰精密机械有限公司 | A kind of high performance durable silver-based precision hardware material |
| CN115558822A (en) * | 2022-07-19 | 2023-01-03 | 朱言军 | Novel gold-silver alloy material and preparation method thereof |
| CN115261664A (en) * | 2022-09-17 | 2022-11-01 | 深圳市瑜悦珠宝有限公司 | Nickel-free and zinc-free gold alloy and preparation method and application thereof |
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