CN104561647A - Compression molding method of Cu-Zn-Sn alloy - Google Patents
Compression molding method of Cu-Zn-Sn alloy Download PDFInfo
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- CN104561647A CN104561647A CN201410629174.4A CN201410629174A CN104561647A CN 104561647 A CN104561647 A CN 104561647A CN 201410629174 A CN201410629174 A CN 201410629174A CN 104561647 A CN104561647 A CN 104561647A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/04—Alloys based on copper with zinc 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
- C22C9/00—Alloys based on copper
- C22C9/02—Alloys based on copper with tin 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
- C22C9/00—Alloys based on copper
- C22C9/06—Alloys based on copper with nickel or cobalt 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
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
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Abstract
The invention discloses a compression molding method of a Cu-Zn-Sn alloy. The compression molding method comprises the following steps: (1) weighting raw materials according to the components of the compression molding high-tin bronze alloy, wherein the raw materials comprise a pure copper ingot, a tin-zirconium ingot, a nickel-zinc ingot and powder of other alloying elements; (2) under vacuum atmosphere, heating and melting an electrolytic copper plate, after the electrolytic copper plate is molten, sequentially adding the tin-zirconium ingot, the nickel-zinc ingot and powder of other alloying elements, smelting under micro-oxidation atmosphere, soaking, adding a deoxidizing agent for deoxidizing, stirring and removing slag material during melting; (3) after the melting process is completed, transferring the molten liquid into a constant-temperature furnace for carrying out constant-temperature preservation; and (4) preheating a pressure mold, adding the molten liquid inside the constant-temperature furnace inside a mold cavity of the pressure mold to descend and starting a press machine to carry out direct pressure molding in a liquid state to obtain the extrusion-molded copper alloy product. By the direct pressure molding in a molten state, the segregation of the elements is improved, such defects microscopic intergranular porosity and cracks are decreased so that the alloying elements components are more uniform among microstructures.
Description
Technical field
The present invention relates to a kind of Cu-Zn-Sn system alloy pressure forming method, belong to copper base alloy and manufacture field.
Background technology
For the copper alloy for electronic material for various electronic equipments parts such as lead frame, junctor, pin, terminal, rly., switches, as its fundamental characteristics, requirement can realize high strength and high conductivity (or thermal conductivity) simultaneously.In recent years, highly integrated and miniaturization, the thin-walled property of electronic unit are fast-developing, correspondingly, also more improve the calling hierarchy of the copper alloy used in electronic equipments parts.With regard to the viewpoint of high strength and high conductivity, in recent years, as copper alloy for electronic material, the usage quantity of precipitation hardening type copper alloy increases, and replaces in the past with the solution strengthening type copper alloy that phosphor bronze, brass etc. are representative with it.In precipitation hardening type copper alloy, by carrying out ageing treatment to the supersaturated solid solution through solution treatment, fine precipitate being disperseed equably, thus puies forward heavy alloyed intensity, reduce the solid solution element amount in copper, to improve electroconductibility simultaneously.Therefore, the mechanical properties such as intensity, elasticity can be obtained excellent, and the material that electroconductibility, thermal conductivity are good.In precipitation hardening type copper alloy, to be commonly referred to as section gloomy (Corson) be the Cu-Ni-Si series copper alloy of alloy is the typical copper alloy having higher electroconductibility, intensity, stress relaxation properties and bendability concurrently, is one of alloy of industry positive active development at present.
Summary of the invention
The object of the present invention is to provide a kind of Cu-Zn-Sn system alloy pressure forming method, the weight percent of alloy composition is: Zn, 4-6%, Sn 3-4%, Ni 3-4%, Zr 2-3%, Al0.03-0.04%, Ti 0.03-0.04%, Nb 0.01-0.02%, Ag 0.03-0.04%, Cr 0.01-0.02%, Mn0.01-0.02% surplus is copper and inevitable nonmetal inclusion, and pressure forming method comprises the following steps:
(1) composition of pressing force shaping high-tin bronze alloy takes starting material, and described starting material are fine copper ingot, tin zirconium ingot, nickel zinc ingot metal and other alloying element powders;
(2) heat fused electrolytic copper plate under vacuum atmosphere, temperature is 1600 DEG C, 2 hours time length; After the fusing of fine copper ingot, add tin zirconium ingot, continue under vacuum atmosphere, make tin zirconium ingot melt, 30 minutes time length; After the fusing of tin zirconium ingot, temperature is down to 1000 DEG C, then add nickel zinc ingot metal, other alloying element powders carry out melting under micro-oxidizing atmosphere, 10 minutes hold-times, add reductor after insulation and carry out deoxidation, stir in fusion process and remove slag charge;
(3), after fusion process completes, be transferred to by liquation in constant temperature oven and carry out the preservation of constant temperature temperature, holding temperature is 1050 DEG C;
(4) by pressure mould preheating, preheating temperature is 430 DEG C, afterwards the liquation in constant temperature oven is joined in the die cavity of pressure mould, unlatching press is descending, carries out direct compression under liquid state and is shaped, and unit pressure controls as 1000MPa, dwell time is 5 minutes, then press backhaul, takes out, obtains extrusion molding copper alloy products.
Described Cu-Zn-Sn system alloy, chemical component weight per-cent is: Zn 4.5-5.5%.
Described Cu-Zn-Sn system alloy, chemical component weight per-cent is: Zn 5%.
Described Cu-Zn-Sn system alloy, chemical component weight per-cent is: Sn 3.2-3.8%.
Described Cu-Zn-Sn system alloy, chemical component weight per-cent is: Sn 3.5%.
Described Cu-Zn-Sn system alloy, chemical component weight per-cent is: Ni 3.5%.
Described Cu-Zn-Sn system alloy, chemical component weight per-cent is: Zr 2.5%.
Described Cu-Zn-Sn system alloy, chemical component weight per-cent is: Al0.035%.
Described Cu-Zn-Sn system alloy, chemical component weight per-cent is: Ti 0.035%.
Described Cu-Zn-Sn system alloy, chemical component weight per-cent is: Nb 0.015%.
Described Cu-Zn-Sn system alloy, chemical component weight per-cent is: Ag 0.035%.
Described Cu-Zn-Sn system alloy, chemical component weight per-cent is: Cr 0.015%.
Described Cu-Zn-Sn system alloy, chemical component weight per-cent is: Mn 0.015%.
The invention has the beneficial effects as follows:
Pressure forming Cu-Zn-Sn system provided by the invention alloy has the following advantages: the density of alloy is higher, alloy density >=11.0g/cm3, alloy rigidity >=140HB, tensile strength >=450MPa.In addition, under molten state, direct compression shaping improves element segregation, decreases the defects such as microcosmic intercrystal pore and crackle, makes alloy element component more even between tissue.
Embodiment
Embodiment 1:
A kind of Cu-Zn-Sn system alloy is provided, it is characterized in that, the weight percent of alloy composition is: Zn, 4%, Sn 3%, Ni 3%, Zr 2%, Al0.03%, Ti 0.03%, Nb 0.01%, Ag0.03%, Cr 0.01%, Mn 0.01% surplus be copper and inevitable nonmetal inclusion
Comprise the following steps:
(1) composition of pressing force shaping high-tin bronze alloy takes starting material, and described starting material are fine copper ingot, tin zirconium ingot, nickel zinc ingot metal and other alloying element powders;
(2) heat fused electrolytic copper plate under vacuum atmosphere, temperature is 1600 DEG C, 2 hours time length; After the fusing of fine copper ingot, add tin zirconium ingot, continue under vacuum atmosphere, make tin zirconium ingot melt, 30 minutes time length; After the fusing of tin zirconium ingot, temperature is down to 1000 DEG C, then add nickel zinc ingot metal, other alloying element powders carry out melting under micro-oxidizing atmosphere, 10 minutes hold-times, add reductor after insulation and carry out deoxidation, stir in fusion process and remove slag charge;
(3), after fusion process completes, be transferred to by liquation in constant temperature oven and carry out the preservation of constant temperature temperature, holding temperature is 1050 DEG C;
(4) by pressure mould preheating, preheating temperature is 430 DEG C, afterwards the liquation in constant temperature oven is joined in the die cavity of pressure mould, unlatching press is descending, carries out direct compression under liquid state and is shaped, and unit pressure controls as 1000MPa, dwell time is 5 minutes, then press backhaul, takes out, obtains extrusion molding copper alloy products.
Embodiment 2:
A kind of Cu-Zn-Sn system alloy is provided, it is characterized in that, the weight percent of alloy composition is: Zn, 6%, Sn 4%, Ni 4%, Zr 3%, Al0.04%, Ti 0.04%, Nb 0.02%, Ag0.04%, Cr 0.02%, Mn 0.02% surplus be copper and inevitable nonmetal inclusion
Comprise the following steps:
(1) composition of pressing force shaping high-tin bronze alloy takes starting material, and described starting material are fine copper ingot, tin zirconium ingot, nickel zinc ingot metal and other alloying element powders;
(2) heat fused electrolytic copper plate under vacuum atmosphere, temperature is 1600 DEG C, 2 hours time length; After the fusing of fine copper ingot, add tin zirconium ingot, continue under vacuum atmosphere, make tin zirconium ingot melt, 30 minutes time length; After the fusing of tin zirconium ingot, temperature is down to 1000 DEG C, then add nickel zinc ingot metal, other alloying element powders carry out melting under micro-oxidizing atmosphere, 10 minutes hold-times, add reductor after insulation and carry out deoxidation, stir in fusion process and remove slag charge;
(3), after fusion process completes, be transferred to by liquation in constant temperature oven and carry out the preservation of constant temperature temperature, holding temperature is 1050 DEG C;
(4) by pressure mould preheating, preheating temperature is 430 DEG C, afterwards the liquation in constant temperature oven is joined in the die cavity of pressure mould, unlatching press is descending, carries out direct compression under liquid state and is shaped, and unit pressure controls as 1000MPa, dwell time is 5 minutes, then press backhaul, takes out, obtains extrusion molding copper alloy products.
Embodiment 3:
A kind of Cu-Zn-Sn system alloy is provided, it is characterized in that, the weight percent of alloy composition is: Zn, 5%, Sn 4%, Ni 4%, Zr 3%, Al0.04%, Ti 0.04%, Nb 0.02%, Ag0.04%, Cr 0.02%, Mn 0.02% surplus be copper and inevitable nonmetal inclusion
Comprise the following steps:
(1) composition of pressing force shaping high-tin bronze alloy takes starting material, and described starting material are fine copper ingot, tin zirconium ingot, nickel zinc ingot metal and other alloying element powders;
(2) heat fused electrolytic copper plate under vacuum atmosphere, temperature is 1600 DEG C, 2 hours time length; After the fusing of fine copper ingot, add tin zirconium ingot, continue under vacuum atmosphere, make tin zirconium ingot melt, 30 minutes time length; After the fusing of tin zirconium ingot, temperature is down to 1000 DEG C, then add nickel zinc ingot metal, other alloying element powders carry out melting under micro-oxidizing atmosphere, 10 minutes hold-times, add reductor after insulation and carry out deoxidation, stir in fusion process and remove slag charge;
(3), after fusion process completes, be transferred to by liquation in constant temperature oven and carry out the preservation of constant temperature temperature, holding temperature is 1050 DEG C;
(4) by pressure mould preheating, preheating temperature is 430 DEG C, afterwards the liquation in constant temperature oven is joined in the die cavity of pressure mould, unlatching press is descending, carries out direct compression under liquid state and is shaped, and unit pressure controls as 1000MPa, dwell time is 5 minutes, then press backhaul, takes out, obtains extrusion molding copper alloy products.
Embodiment 4:
A kind of Cu-Zn-Sn system alloy is provided, it is characterized in that, the weight percent of alloy composition is: Zn, 5%, Sn 3.5%, Ni 4%, Zr 3%, Al0.04%, Ti 0.04%, Nb 0.02%, Ag0.04%, Cr 0.02%, Mn 0.02% surplus be copper and inevitable nonmetal inclusion
Comprise the following steps:
(1) composition of pressing force shaping high-tin bronze alloy takes starting material, and described starting material are fine copper ingot, tin zirconium ingot, nickel zinc ingot metal and other alloying element powders;
(2) heat fused electrolytic copper plate under vacuum atmosphere, temperature is 1600 DEG C, 2 hours time length; After the fusing of fine copper ingot, add tin zirconium ingot, continue under vacuum atmosphere, make tin zirconium ingot melt, 30 minutes time length; After the fusing of tin zirconium ingot, temperature is down to 1000 DEG C, then add nickel zinc ingot metal, other alloying element powders carry out melting under micro-oxidizing atmosphere, 10 minutes hold-times, add reductor after insulation and carry out deoxidation, stir in fusion process and remove slag charge;
(3), after fusion process completes, be transferred to by liquation in constant temperature oven and carry out the preservation of constant temperature temperature, holding temperature is 1050 DEG C;
(4) by pressure mould preheating, preheating temperature is 430 DEG C, afterwards the liquation in constant temperature oven is joined in the die cavity of pressure mould, unlatching press is descending, carries out direct compression under liquid state and is shaped, and unit pressure controls as 1000MPa, dwell time is 5 minutes, then press backhaul, takes out, obtains extrusion molding copper alloy products.
Embodiment 5:
A kind of Cu-Zn-Sn system alloy is provided, it is characterized in that, the weight percent of alloy composition is: Zn, 5%, Sn 3.5%, Ni 3.5%, Zr 3%, Al0.04%, Ti 0.04%, Nb 0.02%, Ag0.04%, Cr 0.02%, Mn 0.02% surplus be copper and inevitable nonmetal inclusion
Comprise the following steps:
(1) composition of pressing force shaping high-tin bronze alloy takes starting material, and described starting material are fine copper ingot, tin zirconium ingot, nickel zinc ingot metal and other alloying element powders;
(2) heat fused electrolytic copper plate under vacuum atmosphere, temperature is 1600 DEG C, 2 hours time length; After the fusing of fine copper ingot, add tin zirconium ingot, continue under vacuum atmosphere, make tin zirconium ingot melt, 30 minutes time length; After the fusing of tin zirconium ingot, temperature is down to 1000 DEG C, then add nickel zinc ingot metal, other alloying element powders carry out melting under micro-oxidizing atmosphere, 10 minutes hold-times, add reductor after insulation and carry out deoxidation, stir in fusion process and remove slag charge;
(3), after fusion process completes, be transferred to by liquation in constant temperature oven and carry out the preservation of constant temperature temperature, holding temperature is 1050 DEG C;
(4) by pressure mould preheating, preheating temperature is 430 DEG C, afterwards the liquation in constant temperature oven is joined in the die cavity of pressure mould, unlatching press is descending, carries out direct compression under liquid state and is shaped, and unit pressure controls as 1000MPa, dwell time is 5 minutes, then press backhaul, takes out, obtains extrusion molding copper alloy products.
Embodiment 6:
A kind of Cu-Zn-Sn system alloy is provided, it is characterized in that, the weight percent of alloy composition is: Zn, 5%, Sn 3.5%, Ni 3.5%, Zr 2.5%, Al0.04%, Ti 0.04%, Nb 0.02%, Ag0.04%, Cr 0.02%, Mn 0.02% surplus be copper and inevitable nonmetal inclusion
Comprise the following steps:
(1) composition of pressing force shaping high-tin bronze alloy takes starting material, and described starting material are fine copper ingot, tin zirconium ingot, nickel zinc ingot metal and other alloying element powders;
(2) heat fused electrolytic copper plate under vacuum atmosphere, temperature is 1600 DEG C, 2 hours time length; After the fusing of fine copper ingot, add tin zirconium ingot, continue under vacuum atmosphere, make tin zirconium ingot melt, 30 minutes time length; After the fusing of tin zirconium ingot, temperature is down to 1000 DEG C, then add nickel zinc ingot metal, other alloying element powders carry out melting under micro-oxidizing atmosphere, 10 minutes hold-times, add reductor after insulation and carry out deoxidation, stir in fusion process and remove slag charge;
(3), after fusion process completes, be transferred to by liquation in constant temperature oven and carry out the preservation of constant temperature temperature, holding temperature is 1050 DEG C;
(4) by pressure mould preheating, preheating temperature is 430 DEG C, afterwards the liquation in constant temperature oven is joined in the die cavity of pressure mould, unlatching press is descending, carries out direct compression under liquid state and is shaped, and unit pressure controls as 1000MPa, dwell time is 5 minutes, then press backhaul, takes out, obtains extrusion molding copper alloy products.
Claims (1)
1. a Cu-Zn-Sn system alloy pressure forming method, the weight percent of alloy composition is: Zn, 4-6%, Sn 3-4%, Ni 3-4%, Zr 2-3%, Al 0.03-0.04%, Ti 0.03-0.04%, Nb 0.01-0.02%, Ag 0.03-0.04%, Cr 0.01-0.02%, Mn 0.01-0.02% surplus is copper and inevitable nonmetal inclusion, it is characterized in that, forming method comprises the following steps:
(1) composition of pressing force shaping high-tin bronze alloy takes starting material, and described starting material are fine copper ingot, tin zirconium ingot, nickel zinc ingot metal and other alloying element powders;
(2) heat fused electrolytic copper plate under vacuum atmosphere, temperature is 1600 DEG C, 2 hours time length; After the fusing of fine copper ingot, add tin zirconium ingot, continue under vacuum atmosphere, make tin zirconium ingot melt, 30 minutes time length; After the fusing of tin zirconium ingot, temperature is down to 1000 DEG C, then add nickel zinc ingot metal, other alloying element powders carry out melting under micro-oxidizing atmosphere, 10 minutes hold-times, add reductor after insulation and carry out deoxidation, stir in fusion process and remove slag charge;
(3), after fusion process completes, be transferred to by liquation in constant temperature oven and carry out the preservation of constant temperature temperature, holding temperature is 1050 DEG C;
(4) by pressure mould preheating, preheating temperature is 430 DEG C, afterwards the liquation in constant temperature oven is joined in the die cavity of pressure mould, unlatching press is descending, carries out direct compression under liquid state and is shaped, and unit pressure controls as 1000MPa, dwell time is 5 minutes, then press backhaul, takes out, obtains extrusion molding copper alloy products.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344741A (en) * | 2015-12-02 | 2016-02-24 | 芜湖楚江合金铜材有限公司 | Copper alloy wire with excellent processing plasticity and processing technology of copper alloy wire |
| CN113293318A (en) * | 2021-05-19 | 2021-08-24 | 西安斯瑞先进铜合金科技有限公司 | Preparation method of low-oxygen-content copper-iron alloy |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5735656A (en) * | 1980-08-11 | 1982-02-26 | Mitsui Mining & Smelting Co Ltd | Heat-resistant copper alloy with high electric conductivity |
| JPH01279723A (en) * | 1988-04-30 | 1989-11-10 | Fukuda Metal Foil & Powder Co Ltd | Cu-zn-al sintered superelastic alloy and its manufacture |
| CN103555990A (en) * | 2013-10-18 | 2014-02-05 | 苏州天兼金属新材料有限公司 | Alloy material for aerospace field and manufacturing method thereof |
| CN104046836A (en) * | 2005-12-22 | 2014-09-17 | 株式会社神户制钢所 | Copper alloy having excellent stress relaxation property |
-
2014
- 2014-11-10 CN CN201410629174.4A patent/CN104561647B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5735656A (en) * | 1980-08-11 | 1982-02-26 | Mitsui Mining & Smelting Co Ltd | Heat-resistant copper alloy with high electric conductivity |
| JPH01279723A (en) * | 1988-04-30 | 1989-11-10 | Fukuda Metal Foil & Powder Co Ltd | Cu-zn-al sintered superelastic alloy and its manufacture |
| CN104046836A (en) * | 2005-12-22 | 2014-09-17 | 株式会社神户制钢所 | Copper alloy having excellent stress relaxation property |
| CN103555990A (en) * | 2013-10-18 | 2014-02-05 | 苏州天兼金属新材料有限公司 | Alloy material for aerospace field and manufacturing method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344741A (en) * | 2015-12-02 | 2016-02-24 | 芜湖楚江合金铜材有限公司 | Copper alloy wire with excellent processing plasticity and processing technology of copper alloy wire |
| CN113293318A (en) * | 2021-05-19 | 2021-08-24 | 西安斯瑞先进铜合金科技有限公司 | Preparation method of low-oxygen-content copper-iron alloy |
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| CN104561647B (en) | 2018-05-04 |
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