CN1160771A - Separating-hardened copper alloy - Google Patents
Separating-hardened copper alloy Download PDFInfo
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- CN1160771A CN1160771A CN 96115175 CN96115175A CN1160771A CN 1160771 A CN1160771 A CN 1160771A CN 96115175 CN96115175 CN 96115175 CN 96115175 A CN96115175 A CN 96115175A CN 1160771 A CN1160771 A CN 1160771A
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- alloy
- copper alloy
- copper
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- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 14
- 239000000956 alloy Substances 0.000 claims abstract description 34
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 33
- 239000010949 copper Substances 0.000 claims abstract description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 238000004881 precipitation hardening Methods 0.000 claims abstract description 6
- 229910000691 Re alloy Inorganic materials 0.000 claims abstract description 4
- 239000011159 matrix material Substances 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 229910052726 zirconium Inorganic materials 0.000 claims description 7
- 238000005275 alloying Methods 0.000 claims description 5
- 230000007935 neutral effect Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000010791 quenching Methods 0.000 claims description 2
- 230000000171 quenching effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims 2
- 238000004321 preservation Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 9
- 238000009749 continuous casting Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000010891 electric arc Methods 0.000 abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 231100000252 nontoxic Toxicity 0.000 abstract description 2
- 230000003000 nontoxic effect Effects 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 229910000599 Cr alloy Inorganic materials 0.000 abstract 1
- 229910000861 Mg alloy Inorganic materials 0.000 abstract 1
- 229910001093 Zr alloy Inorganic materials 0.000 abstract 1
- 238000004886 process control Methods 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 229910017813 Cu—Cr Inorganic materials 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000007669 thermal treatment Methods 0.000 description 4
- 229910017526 Cu-Cr-Zr Inorganic materials 0.000 description 3
- 229910017810 Cu—Cr—Zr Inorganic materials 0.000 description 3
- 229910017985 Cu—Zr Inorganic materials 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000010930 yellow gold Substances 0.000 description 1
- 229910001097 yellow gold Inorganic materials 0.000 description 1
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Abstract
本发明提供了一种析出硬化铜合金，以铜为基体，中间加入Cr、Zr、Mg、RE合金，采用析出硬化处理工艺制作而成。其成分含量为：Cr0.30～1.20％，Zr0.08～0.30％，Mg0.08～0.15％，RE0.05～0.10％，其余为铜。该合金具有配方合理，工艺易控制，制作过程无毒，综合性能良好等优点。它不仅是制作连铸结晶器的理想材料，而且还适用于高炉风口、渣口、氧枪喷头、电弧炉夹持器及直流电弧炉底阳极等领域，具有广泛的应用前景和显著的经济效益。The invention provides a precipitation hardening copper alloy, which is made by using copper as a matrix, adding Cr, Zr, Mg and RE alloy in the middle, and adopting a precipitation hardening treatment process. Its component content is: 0.30-1.20% of Cr, 0.08-0.30% of Zr, 0.08-0.15% of Mg, 0.05-0.10% of RE, and the rest is copper. The alloy has the advantages of reasonable formula, easy process control, non-toxic production process, good comprehensive performance and the like. It is not only an ideal material for making continuous casting crystallizers, but also suitable for blast furnace tuyeres, slag ports, oxygen lance nozzles, electric arc furnace holders and DC electric arc furnace bottom anodes, etc. It has broad application prospects and significant economic benefits. .
Description
The invention belongs to the metallurgical casting material, particularly continuous casting is produced the spare parts material requested.
At present, in steelmaking production in metallurgical industry, replacing die casting by continuous casting is development trend.Be accompanied by the development of continuous casting technology, also all the more strict to the requirement of its crystallizer material, especially require it to have high hot strength and hardness.Facts have proved that along with improving constantly of continuous caster pulling rate, fine copper and yellow gold have been unsuitable for doing the crystallizer material.Generally adopt separating-hardened copper alloy to make crystallizer abroad, domestic middle and high fast crystallizer copper plate of plate blank continuous casting machine still fails to realize production domesticization all from external import.
Through update search, the patented technology of relevant separating-hardened copper alloy has both at home and abroad:
1. notification number is to disclose a kind of alloy in 10153/9 the document, its main component is: Cr0.15～0.6%, Zr0.1～0.25%, Ge0.01～0.15%, Nb or Ce0.01～0.08%, the characteristics of this alloy are to conduct electricity very well, but mechanical property is general, and it is applicable to the resistance welding electrode material.
2. the patent No. is to disclose a kind of alloy among the JP04210438, and its main component is Cr0.1～1.5%, Zr0.01～0.5%, Fe/Ni0.01～0.5%, Co1.3～5.0%, Ti0.2～2.0%.This alloy is owing to contain multiple alloying element, and production technique is difficult to control, simultaneously its non-constant of heat conductivility.
3. the patent No. is disclosed a kind of alloy in the JP04218629 document, and its composition is: Fe1.5～3.0%, and Pb0.005～0.4%, other constituent content summation is 0.001～2.00%.This kind alloy mechanical property is general, and heat conductivility is also relatively poor.
In a word, up to the present, middle and high fast continuous casting crystallizer for plate billet copper coin mainly adopts Cu-Cr, Cu-Zr, a few class alloys such as Cu-Cr-Zr.And Cu-Cr, Cu-Zr class alloy high-temp performance is general, and the pyro-oxidation resistance of Cu-Cr-Zr alloy is relatively poor, all is not the ideal material of making the copper coin crystallizer.
The objective of the invention is in order to overcome weakness such as existing alloy over-all properties is relatively poor, and a kind of existing higher hot strength, hot hardness are provided, have the good capacity of heat transmission and the separating-hardened copper alloy of high-temperature oxidation resistance simultaneously again.Make the needs of continuous cast mold in order to substitute import, to satisfy, thereby realize the production domesticization of continuous casting spare parts with material.
The present invention is achieved in that it adopts a kind of brand-new prescription, promptly contains Cr, Zr, Mg, RE alloying element in the alloy simultaneously, its composition consists of: Cr0.30～1.20%, Zr0.08～0.30%, Mg0.08～0.15%, RE0.05～0.10%, all the other are copper.
In the present invention, the purpose that adds Cr, Zr alloying element is to separate out Cr at matrix α in mutually
2Zr is to overcome the weakness of independent adding Cr or Zr.Add Cr or Zr element separately, though alloy at room temperature intensity is higher, hot strength is not high.Add Cr simultaneously, the Zr element, not only room temperature strength height, and hot strength is also high, good combination property.The purpose that adds the Mg element is to improve high temperature oxidation resistance and thermotolerance.The effect that adds the RE element mainly contains two: the one, remove impurity such as sulphur, selenium, bismuth in the alloy raw material, and purify alloy simultaneously; The 2nd, the heat conductivility of increase alloy.
Manufacture craft of the present invention is:
1. electrolysis copper coin (heating in medium frequency stove or electrical heater) in crucible is heated to 1200 ℃, makes its fusing.Carry out deoxidation at 1240 ℃～1280 ℃ then, deoxidation added Cr, Mg, Zr, RE alloy after ten minutes.The method that adds alloying element all adds with the master alloy form.Tapping temperature is controlled at below 1300 ℃.
2. casting ingot-forming behind the alloy melting carries out forge hot then.Forge at 700 ℃～950 ℃, the deformation rate of alloy pig is controlled at 80～150%.
3. the alloy pig after will forging carries out solid solution and separates out thermal treatment.
Solution heat treatment is in the neutral atmosphere process furnace alloy pig to be heated to 890 ℃～1000 ℃, is incubated and carries out Water Quenching after 2～6 hours.
Precipitation-hardening thermal treatment is in the neutral atmosphere process furnace alloy pig to be heated to 380 ℃～560 ℃, is incubated 2～5 hours, then at the stove internal cooling to room temperature.
The alloy pig of the above-mentioned art breading of process is processed into copper plate of crystallizer or other parts use for industry.
The alloy material of making according to prescription provided by the invention and technology has good comprehensive mechanical performance.Its tensile strength sigma
b〉=360MPa, yield strength σ
8〉=240MPa, hardness HB 〉=160, softening temperature 〉=400 ℃, electric conductivity I, A, C% 〉=70%.
Advantages such as the present invention has overcome the deficiency of prior art, has prescription rationally, and technology is easy to control, and making processes is nontoxic, and over-all properties is good.The existing good hot strength of this alloy, hot hardness have the good capacity of heat transmission and high-temperature oxidation resistance again, and every performance all is better than Cu-Cr, Cu-Zr, and the Cu-Cr-Zr alloy of analogous components, and its over-all properties comparative result is listed table 1 in.The present invention is not only the ideal material of making continuous cast mold, but also can be widely used in fields such as blast-furnace tuyere, cinder notch, oxygen lance blow head, electric arc furnace clamper and direct current arc furnace bottom anode.Succeeding in developing of this alloy, alternative imported materials and items advantageously promotes China's continuous casting to produce the spare parts production domesticization, and has remarkable economic efficiency and social benefit.
The present invention is with prior art over-all properties contrast information slip 1
Embodiment:
Made three kinds of sclerosis copper alloys according to prescription of the present invention and manufacture craft, chemical ingredients sees Table 2.Its smelting technology is: the electrolysis copper coin is heated to 1200 ℃ of all fusings in Medium Frequency Induction Heating Furnace, adopts MAGNESIUM METAL to carry out deoxidation at 1250 ℃, and deoxidation added the Cu-Cr alloy after ten minutes, and the Cu-Zr-RE alloy pours into alloy pig under 1280 ℃ of temperature.Through forging and precipitation-hardening thermal treatment post-treatment finished product, the concrete manufacture craft of its alloy sees Table 3 then, and actual performance is listed table 4 in.
The actual constituent table 2 of embodiment of the invention copper alloy
| Embodiment | Chemical ingredients (wt%) | All the other | |||
| ??Cr | ??Zr | ??Mg | ??RE | ||
| ????1 | ??0.32 | ??0.09 | ??0.10 | ??0.06 | ???Cu |
| ????2 | ??0.42 | ??0.13 | ??0.12 | ??0.08 | ???Cu |
| ????3 | ??0.80 | ??0.12 | ??0.14 | ??0.09 | ???Cu |
The treatment process table 3 of the embodiment of the invention
| Embodiment | Forging process | Thermal treatment process | ||
| Heating temperature, ℃ | Deformation ratio (%) | Solid solution | Precipitation-hardening | |
| ????1 | ????800～900 | ????120 | 970 ℃ of insulations shrend in 6 hours | 400 ℃ are incubated 2 hours |
| ????2 | ????890～950 | ????125 | 980 insulations shrend in 2 hours | 480 ℃ are incubated 2 hours |
| ????3 | ????750～900 | ????100 | 1000 ℃ of insulations shrend in 6 hours | 550 ℃ are incubated 2 hours |
The actual performance table 4 of the embodiment of the invention
| Embodiment | Mechanical property | ||||
| ?σ bMPa | ?σ 3MPa | ??HB | ?I，A，C％ | Softening temperature ℃ | |
| ????1 | ??360 | ??240 | ??160 | ????88 | ????540 |
| ????2 | ??385 | ??245 | ??160 | ????83 | ????583 |
| ????3 | ??390 | ??240 | ??165 | ????78 | ????590 |
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96115175 CN1160771A (en) | 1996-03-26 | 1996-03-26 | Separating-hardened copper alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96115175 CN1160771A (en) | 1996-03-26 | 1996-03-26 | Separating-hardened copper alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1160771A true CN1160771A (en) | 1997-10-01 |
Family
ID=5122462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96115175 Pending CN1160771A (en) | 1996-03-26 | 1996-03-26 | Separating-hardened copper alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1160771A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397222A (en) * | 2013-07-01 | 2013-11-20 | 安徽三联泵业股份有限公司 | Stainless steel drawing mould copper alloy and preparation method thereof |
| CN103397221A (en) * | 2013-07-01 | 2013-11-20 | 安徽三联泵业股份有限公司 | Copper alloy for drawing mould and preparation method thereof |
| CN103397223A (en) * | 2013-07-01 | 2013-11-20 | 安徽三联泵业股份有限公司 | Refrigerator mould copper alloy and preparation method thereof |
| CN105506344A (en) * | 2015-12-15 | 2016-04-20 | 苏州华安矿业科技有限公司 | Mineral ultrasonic atomization nozzle |
| CN105543540A (en) * | 2015-12-26 | 2016-05-04 | 汕头华兴冶金设备股份有限公司 | Copper chromium zirconium alloy and preparing method thereof |
| WO2017101148A1 (en) * | 2015-12-15 | 2017-06-22 | 苏州华安矿业科技有限公司 | Porous nozzle for mining |
| WO2017101147A1 (en) * | 2015-12-15 | 2017-06-22 | 苏州华安矿业科技有限公司 | Ultrasonic atomizing nozzle |
| CN107849699A (en) * | 2015-08-06 | 2018-03-27 | 日产自动车株式会社 | Sliding member and manufacturing method thereof |
-
1996
- 1996-03-26 CN CN 96115175 patent/CN1160771A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397222A (en) * | 2013-07-01 | 2013-11-20 | 安徽三联泵业股份有限公司 | Stainless steel drawing mould copper alloy and preparation method thereof |
| CN103397221A (en) * | 2013-07-01 | 2013-11-20 | 安徽三联泵业股份有限公司 | Copper alloy for drawing mould and preparation method thereof |
| CN103397223A (en) * | 2013-07-01 | 2013-11-20 | 安徽三联泵业股份有限公司 | Refrigerator mould copper alloy and preparation method thereof |
| CN107849699A (en) * | 2015-08-06 | 2018-03-27 | 日产自动车株式会社 | Sliding member and manufacturing method thereof |
| CN105506344A (en) * | 2015-12-15 | 2016-04-20 | 苏州华安矿业科技有限公司 | Mineral ultrasonic atomization nozzle |
| WO2017101148A1 (en) * | 2015-12-15 | 2017-06-22 | 苏州华安矿业科技有限公司 | Porous nozzle for mining |
| WO2017101147A1 (en) * | 2015-12-15 | 2017-06-22 | 苏州华安矿业科技有限公司 | Ultrasonic atomizing nozzle |
| CN105543540A (en) * | 2015-12-26 | 2016-05-04 | 汕头华兴冶金设备股份有限公司 | Copper chromium zirconium alloy and preparing method thereof |
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