CN104942471A - Environment-protecting tin zinc manganese copper alloy new material for welding and preparing method thereof - Google Patents
Environment-protecting tin zinc manganese copper alloy new material for welding and preparing method thereof Download PDFInfo
- Publication number
- CN104942471A CN104942471A CN201510386865.0A CN201510386865A CN104942471A CN 104942471 A CN104942471 A CN 104942471A CN 201510386865 A CN201510386865 A CN 201510386865A CN 104942471 A CN104942471 A CN 104942471A
- Authority
- CN
- China
- Prior art keywords
- welding
- degree
- new material
- alloy
- copper alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/302—Cu as the principal constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/28—Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
- B23K35/282—Zn as the principal constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/06—Alloys containing less than 50% by weight of each constituent containing zinc
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses an environment-protecting tin zinc manganese copper alloy new material for welding and a preparing method thereof. The copper alloy new material comprises the components of 33% of tin, 9% of manganese, 33% of zinc and the balance of copper. According to the copper alloy new material, the original traditional welding material performance is guaranteed, meanwhile, lead elements are replaced, the requirement for ROHS is met, manganese elements are added, zinc oxidation is avoided, material cost is greatly lowered, and the stability of a welding carrier is improved.
Description
The application is application people is Suzhou Jincang Alloy New Material Co., Ltd., denomination of invention is a kind of environmental protection tin zinc-manganese copper alloy new material for welding and preparation method thereof, application number is 201310016419.1, and the applying date is the divisional application of the application for a patent for invention of on 01 16th, 2013.
Technical field
The present invention relates to the manufacturing technology field of welding material, particularly relating to a kind of environmental protection tin zinc-manganese copper alloy new material for welding and preparation method thereof.
Background technology
On market, existing welding material is generally two kinds: a kind of is SAC, and another kind is tin cupro lead.Along with " about being limited in electronic and electrical equipment the instruction using some harmful components " (Restriction of Hazardous Substances, ROHS) policy execution of the plumbous instruction of taboo in the electronics industry, leaded soldering material can not meet high-level environmental requirement.And the application difficult point of SAC to be not only requirement brazier temperature higher than original metal 30 degree, and its cost is also high than tin cupro lead by 25%, the more important thing is that the raising of this temperature can reduce the stability exposing components and parts greatly.Therefore, red brass is studied further.But the oxidation of zinc prevents the application of red brass.
Summary of the invention
The object of the invention is for above-mentioned the deficiencies in the prior art, a kind of environmental protection tin zinc-manganese copper alloy new material for welding and preparation method thereof is provided.This Alloy Materials can play the object stoping zinc oxidation, and while greatly reducing material cost, also improve the stability of welding carrier.
For achieving the above object, the technical solution used in the present invention is as follows.
For an environmental protection tin zinc-manganese copper alloy new material of welding, be made up of the component of following proportioning: tin 33%; Manganese 9%; Zinc 33%; Surplus is copper.
Invention further provides a kind of method of producing the above-mentioned environmental protection tin zinc-manganese copper alloy new material for welding, comprising the following steps:
1) according to proportioning, Xi ﹑ Xin ﹑ Meng ﹑ copper is placed in main frequency furnace, is heated to 1300-1350 degree, be incubated to 1200 degree after fusing completely;
2), after fully being stirred by the alloy liquid melted completely with graphite rod, cover high-purity flaky graphite powder and be oxidized to prevent it, thickness is 15-20cm;
3), after being incubated 2-2.5 hour, producing Spike direct-reading spectrometer with Germany and three composition inspections are carried out, to determine that its alloying component is within prescribed limit to the sample taken out in main frequency furnace;
4) insulation is after 50-60 minute further, and be again warming up to 1300 degree, and open the vibrating device of main frequency furnace, vibration frequency is 1 time/second, adopts horizontal continuous casting method to be cast as the solid alloy bar that diameter is 40mm, length is 600mm;
5) 800 tons of single action extruder extruding are adopted, alloy pig heating-up temperature is 100-150 degree, and extrusion temperature is 200 degree, extrusion speed V=10mm/s, the diameter of the rear alloy bar of extruding is 31mm, length is 990mm, then uses high accuracy wolfram steel thin skin mould by alloy bar peeling once to 30mm;
6) carry out annealing in process with box-annealing furnace to the alloy bar after extruding, annealing temperature is 80-100 degree, and annealing time is 1-1.5 hour;
7) with head machine processed, the drawing section that length is 50mm, diameter is 25mm is made in alloy bar one end after having annealed, to anneal after alloy bar multi-drawing with finishing die, diameter is 10mm, tolerance is +/-0.05mm the welding wire base rod that makes it finally become, is then cut into welding wire base rod that length is 500mm, tolerance is the specification of+1/-0mm;
8) pack and put in storage.
The invention has the beneficial effects as follows:
Lead element, while the original traditional welding material property of guarantee, replaces, meets ROHS requirement by the present invention.In the environmental protection tin zinc-manganese copper alloy new material for welding of the present invention, adding manganese element, the object stoping zinc oxidation can be reached, while greatly reducing material cost, also improve the stability of welding carrier.
Accompanying drawing explanation
Fig. 1 is the flow chart of the preparation method of the environmental protection tin zinc-manganese copper alloy new material for welding of the present invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
embodiment
For an environmental protection tin zinc-manganese copper alloy new material of welding, be made up of the component of following proportioning: tin 33%; Manganese 9%; Zinc 33%; Surplus is copper.
The preparation method of environmental protection tin zinc-manganese copper alloy new material for welding of embodiment, as shown in Figure 1, comprises the steps:
1) according to proportioning, Xi ﹑ Xin ﹑ Meng ﹑ copper is placed in main frequency furnace, is heated to 1300-1350 degree, be incubated to 1200 degree after fusing completely;
2), after fully being stirred by the alloy liquid melted completely with graphite rod, cover high-purity flaky graphite powder and be oxidized to prevent it, thickness is 15-20cm;
3), after being incubated 2-2.5 hour, producing Spike direct-reading spectrometer with Germany and three composition inspections are carried out, to determine that its alloying component is within prescribed limit to the sample taken out in main frequency furnace;
4) insulation is after 50-60 minute further, and be again warming up to 1300 degree, and open the vibrating device of main frequency furnace, vibration frequency is 1 time/second, adopts horizontal continuous casting method to be cast as the solid alloy bar that diameter is 40mm, length is 600mm;
5) 800 tons of single action extruder extruding are adopted, alloy pig heating-up temperature is 100-150 degree, and extrusion temperature is 200 degree, extrusion speed V=10mm/s, the diameter of the rear alloy bar of extruding is 31mm, length is 990mm, then uses high accuracy wolfram steel thin skin mould by alloy bar peeling once to 30mm;
6) carry out annealing in process with box-annealing furnace to the alloy bar after extruding, annealing temperature is 80-100 degree, and annealing time is 1-1.5 hour;
7) with head machine processed, the drawing section that length is 50mm, diameter is 25mm is made in alloy bar one end after having annealed, to anneal after alloy bar multi-drawing with finishing die, diameter is 10mm, tolerance is +/-0.05mm the welding wire base rod that makes it finally become, is then cut into welding wire base rod that length is 500mm, tolerance is the specification of+1/-0mm;
8) pack and put in storage.
The performance of environmental protection tin zinc-manganese copper alloy new material for welding provided by the invention and traditional welding material is as shown in table 1.
Table 1 is for the performance comparison of the environmental protection tin zinc-manganese copper alloy new material of welding and traditional welding material
The foregoing is only preferred embodiment of the present invention, be not used for limiting practical range of the present invention; If do not depart from the spirit and scope of the present invention, the present invention is modified or equivalent to replace, in the middle of the protection domain that all should be encompassed in the claims in the present invention.
Claims (2)
1. the environmental protection tin zinc-manganese copper alloy new material for welding, is characterized in that, be made up of the component of following proportioning: tin 33%; Manganese 9%; Zinc 33%; Surplus is copper.
2. producing the method for environmental protection tin zinc-manganese copper alloy new material for welding described in claim 1, comprising the following steps:
1) according to proportioning, Xi ﹑ Xin ﹑ Meng ﹑ copper is placed in main frequency furnace, is heated to 1300-1350 degree, be incubated to 1200 degree after fusing completely;
2), after fully being stirred by the alloy liquid melted completely with graphite rod, cover high-purity flaky graphite powder and be oxidized to prevent it, thickness is 15-20cm;
3), after being incubated 2-2.5 hour, producing Spike direct-reading spectrometer with Germany and three composition inspections are carried out, to determine that its alloying component is within prescribed limit to the sample taken out in main frequency furnace;
4) insulation is after 50-60 minute further, and be again warming up to 1300 degree, and open the vibrating device of main frequency furnace, vibration frequency is 1 time/second, adopts horizontal continuous casting method to be cast as the solid alloy bar that diameter is 40mm, length is 600mm;
5) 800 tons of single action extruder extruding are adopted, alloy pig heating-up temperature is 100-150 degree, and extrusion temperature is 200 degree, extrusion speed V=10mm/s, the diameter of the rear alloy bar of extruding is 31mm, length is 990mm, then uses high accuracy wolfram steel thin skin mould by alloy bar peeling once to 30mm;
6) carry out annealing in process with box-annealing furnace to the alloy bar after extruding, annealing temperature is 80-100 degree, and annealing time is 1-1.5 hour;
7) with head machine processed, the drawing section that length is 50mm, diameter is 25mm is made in alloy bar one end after having annealed, to anneal after alloy bar multi-drawing with finishing die, diameter is 10mm, tolerance is +/-0.05mm the welding wire base rod that makes it finally become, is then cut into welding wire base rod that length is 500mm, tolerance is the specification of+1/-0mm;
8) pack and put in storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510386865.0A CN104942471B (en) | 2013-01-16 | 2013-01-16 | Environment-protecting tin zinc manganese copper alloy new material for welding and preparing method thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310016419.1A CN103042318B (en) | 2013-01-16 | 2013-01-16 | A kind of environmental protection tin zinc-manganese copper alloy new material for welding and preparation method thereof |
| CN201510386865.0A CN104942471B (en) | 2013-01-16 | 2013-01-16 | Environment-protecting tin zinc manganese copper alloy new material for welding and preparing method thereof |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310016419.1A Division CN103042318B (en) | 2013-01-16 | 2013-01-16 | A kind of environmental protection tin zinc-manganese copper alloy new material for welding and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104942471A true CN104942471A (en) | 2015-09-30 |
| CN104942471B CN104942471B (en) | 2017-05-03 |
Family
ID=48055303
Family Applications (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510387204.XA Active CN104942472B (en) | 2013-01-16 | 2013-01-16 | Environment-protecting tin zinc manganese copper alloy new material for welding and preparing method thereof |
| CN201510386863.1A Active CN104942470B (en) | 2013-01-16 | 2013-01-16 | Environment-protecting tin zinc manganese copper alloy new material for welding and preparing method thereof |
| CN201310016419.1A Active CN103042318B (en) | 2013-01-16 | 2013-01-16 | A kind of environmental protection tin zinc-manganese copper alloy new material for welding and preparation method thereof |
| CN201510386864.6A Active CN104942464B (en) | 2013-01-16 | 2013-01-16 | Environment-protecting tin zinc manganese copper alloy new material for welding and preparing method thereof |
| CN201510387325.4A Active CN104942473B (en) | 2013-01-16 | 2013-01-16 | Environment-protecting tin zinc manganese copper alloy new material for welding and preparing method thereof |
| CN201510386865.0A Active CN104942471B (en) | 2013-01-16 | 2013-01-16 | Environment-protecting tin zinc manganese copper alloy new material for welding and preparing method thereof |
Family Applications Before (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510387204.XA Active CN104942472B (en) | 2013-01-16 | 2013-01-16 | Environment-protecting tin zinc manganese copper alloy new material for welding and preparing method thereof |
| CN201510386863.1A Active CN104942470B (en) | 2013-01-16 | 2013-01-16 | Environment-protecting tin zinc manganese copper alloy new material for welding and preparing method thereof |
| CN201310016419.1A Active CN103042318B (en) | 2013-01-16 | 2013-01-16 | A kind of environmental protection tin zinc-manganese copper alloy new material for welding and preparation method thereof |
| CN201510386864.6A Active CN104942464B (en) | 2013-01-16 | 2013-01-16 | Environment-protecting tin zinc manganese copper alloy new material for welding and preparing method thereof |
| CN201510387325.4A Active CN104942473B (en) | 2013-01-16 | 2013-01-16 | Environment-protecting tin zinc manganese copper alloy new material for welding and preparing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (6) | CN104942472B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104353939A (en) * | 2014-11-17 | 2015-02-18 | 安徽瑞研新材料技术研究院有限公司 | Novel lead-free copper alloy new material and processing technology thereof |
| JP6803457B2 (en) | 2017-03-24 | 2020-12-23 | 株式会社Ihi | Abrasion resistant copper-zinc alloy and machinery using it |
| CN109175571B (en) * | 2018-10-19 | 2021-02-02 | 广汽本田汽车有限公司 | Laser brazing method for welding automobile parts by copper-manganese-zinc welding wire |
| CN111761156A (en) * | 2020-07-22 | 2020-10-13 | 厦门福鑫特工贸有限公司 | Brazing method for large computer radiator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0411882A1 (en) * | 1989-07-31 | 1991-02-06 | Toyota Jidosha Kabushiki Kaisha | Dispersion strengthened copper-base alloy for overlay |
| CN1066999A (en) * | 1991-05-20 | 1992-12-16 | 江苏工学院 | A kind of silverless Cu-base soldering material |
| KR20110045477A (en) * | 2009-10-27 | 2011-05-04 | 김문숙 | powder composition for welding metal wire for accessory |
| CN102787256A (en) * | 2012-08-28 | 2012-11-21 | 苏州金仓合金新材料有限公司 | Environment-friendly tin-zinc-manganese alloy rod for welding and preparation method thereof |
| CN102828063A (en) * | 2012-09-18 | 2012-12-19 | 苏州天兼金属新材料有限公司 | Novel lead-free environment-friendly high-strength wear-resistant copper-base alloy bar and preparation method thereof |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1532879A (en) * | 1976-09-24 | 1978-11-22 | Sheffield Smelting Co Ltd | Brazing alloys |
| JPS5355441A (en) * | 1976-10-29 | 1978-05-19 | Ebara Mfg | Brazing filler |
| JPS5564979A (en) * | 1978-11-08 | 1980-05-16 | Hitachi Ltd | Welding method of clad material |
| US4587097A (en) * | 1984-06-22 | 1986-05-06 | Allied Corporation | Homogeneous low melting temperature brazing filler metal for joining ferrous and non-ferrous alloys |
| CN1005697B (en) * | 1987-01-05 | 1989-11-08 | 四川省冶金研究所 | Formulation of silverless low melting-point coper-base solder alloy |
| CN1139457C (en) * | 2000-12-25 | 2004-02-25 | 吉林大学 | Multi-element Cu-base solder for soldering low-alloy chilled cast iron |
| US6570127B2 (en) * | 2001-05-03 | 2003-05-27 | Praxair Technology, Inc. | Shielding gas mixture for MIG brazing |
| CN1799760A (en) * | 2005-01-05 | 2006-07-12 | 罗成林 | Copper based brazing alloy |
| CN1990161A (en) * | 2005-12-30 | 2007-07-04 | 上海飞轮有色冶炼厂 | Lead free solder alloy and its preparation method |
| EP2423339A1 (en) * | 2009-04-24 | 2012-02-29 | San-Etsu Metals Co., Ltd | High-strength copper alloy |
| WO2012104426A2 (en) * | 2011-02-04 | 2012-08-09 | Swissmetal Industries Ltd | Cu-ni-zn-mn alloy |
| CN102862003A (en) * | 2012-10-08 | 2013-01-09 | 佛山市泓实机械制造有限公司 | Silver-free copper based solder and preparation method thereof |
-
2013
- 2013-01-16 CN CN201510387204.XA patent/CN104942472B/en active Active
- 2013-01-16 CN CN201510386863.1A patent/CN104942470B/en active Active
- 2013-01-16 CN CN201310016419.1A patent/CN103042318B/en active Active
- 2013-01-16 CN CN201510386864.6A patent/CN104942464B/en active Active
- 2013-01-16 CN CN201510387325.4A patent/CN104942473B/en active Active
- 2013-01-16 CN CN201510386865.0A patent/CN104942471B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0411882A1 (en) * | 1989-07-31 | 1991-02-06 | Toyota Jidosha Kabushiki Kaisha | Dispersion strengthened copper-base alloy for overlay |
| CN1066999A (en) * | 1991-05-20 | 1992-12-16 | 江苏工学院 | A kind of silverless Cu-base soldering material |
| KR20110045477A (en) * | 2009-10-27 | 2011-05-04 | 김문숙 | powder composition for welding metal wire for accessory |
| CN102787256A (en) * | 2012-08-28 | 2012-11-21 | 苏州金仓合金新材料有限公司 | Environment-friendly tin-zinc-manganese alloy rod for welding and preparation method thereof |
| CN102828063A (en) * | 2012-09-18 | 2012-12-19 | 苏州天兼金属新材料有限公司 | Novel lead-free environment-friendly high-strength wear-resistant copper-base alloy bar and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104942464B (en) | 2017-05-03 |
| CN104942473B (en) | 2017-05-03 |
| CN104942470A (en) | 2015-09-30 |
| CN104942473A (en) | 2015-09-30 |
| CN104942472B (en) | 2017-05-03 |
| CN104942472A (en) | 2015-09-30 |
| CN103042318B (en) | 2015-08-05 |
| CN104942471B (en) | 2017-05-03 |
| CN104942470B (en) | 2017-05-03 |
| CN104942464A (en) | 2015-09-30 |
| CN103042318A (en) | 2013-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019239655A1 (en) | Copper alloy powder, layered/molded product, method for producing layered/molded product, and metal parts | |
| CN103555991B (en) | A kind of leadless environment-friendly copper-base alloy pipe and manufacture method thereof | |
| CN103042318B (en) | A kind of environmental protection tin zinc-manganese copper alloy new material for welding and preparation method thereof | |
| TW200727759A (en) | Method for soldering electronic component and soldering structure of electronic component | |
| CN109609801A (en) | High property copper alloy and preparation method thereof | |
| CN103555993B (en) | A kind of leadless environment-friendly acid bronze alloy rod and manufacture method thereof | |
| CN106756406B (en) | A kind of calomic | |
| CN102212712A (en) | Beryllium copper alloy, copper bush for amorphous and/or nano crystal strip production equipment and preparation method | |
| CN103469007B (en) | Senior terminal connector copper alloy and its preparation method and application | |
| CN102747238A (en) | Production method of microalloyed tin bronze alloy | |
| CN101950696B (en) | Manufacturing method of silver tin oxide contact alloy material | |
| CN103056552B (en) | Novel lead-free copper alloy material for welding and preparation method thereof | |
| CN103045900B (en) | Novel high-stability copper alloy material for welding and preparation method for same | |
| CN103199072A (en) | Gold-plated palladium-copper single-crystal bonding wire and manufacturing method thereof | |
| CN103045908B (en) | Novel environment-friendly zinc alloy material for welding and preparation method for same | |
| CN102864326A (en) | High-conduction copper alloy material | |
| CN104353939A (en) | Novel lead-free copper alloy new material and processing technology thereof | |
| CN103555990A (en) | Alloy material for aerospace field and manufacturing method thereof | |
| CN103820664A (en) | Short-flow preparation method of precipitation-strengthened copper-chromium alloy | |
| CN104801880A (en) | Copper-based brazing material | |
| CN102978431B (en) | Method for manufacturing copper-iron alloy used for lead frame | |
| CN102978429B (en) | Copper alloy for manufacturing frame | |
| CN102086492B (en) | Brass alloy for copper bar and manufacturing process thereof | |
| CN101886239A (en) | High-temperature wear-resistance and anti-corrosion thermal spraying alloy wire | |
| CN102978430B (en) | Method for manufacturing lead frame |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |