GB1507227A - Process for producing copper base alloys - Google Patents
Process for producing copper base alloysInfo
- Publication number
- GB1507227A GB1507227A GB31013/75A GB3101375A GB1507227A GB 1507227 A GB1507227 A GB 1507227A GB 31013/75 A GB31013/75 A GB 31013/75A GB 3101375 A GB3101375 A GB 3101375A GB 1507227 A GB1507227 A GB 1507227A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reduction
- annealing
- cracks
- hot
- starting material
- 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.)
- Expired
Links
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Conductive Materials (AREA)
- Lead Frames For Integrated Circuits (AREA)
- Heat Treatment Of Nonferrous Metals Or Alloys (AREA)
Abstract
1507227 Copper alloy OLIN CORP 24 July 1975 [30 Aug 1974] 31013/75 Heading C7A [Also in Division B3] A method of making copper alloy workpieces, e.g. strip, sheet, rod or wire, comprises using as a starting material a copper alloy which has been hot worked to reduction of thickness of at least 50%, the thickness being 0.200"-0.750", annealing the starting material at 40%-70% of its melting temperature for 1-24 hours and cold working it. The starting material is a cast ingot which has been hot rolled and is an alloy containing 2.5%-3.1% Al, 1.5%-2.1% Si, 0.25%-0.55% Co balance Cu. Hot rolling is performed at 800 -920‹C, preferably 850 - 900‹C, and internal cracking occurs. Dissolved hydrogen in the alloy diffuses in these cracks and a hot working reduction of 75%-95% is preferred to reduce the number of cracks. Annealing diffuses the hydrogen from the material and the minimum thickness of 0.200" ensures that the material is able to resist the expansion of the cracks from the pressure of the hydrogen. Annealing is preferably carried out in a conventional reducing atmosphere. The final cold working comprises rolling to a reduction of at least 60%, preferably 75% to weld together the internal defects or to a reduction of 40% followed by further annealing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US501990A US3929516A (en) | 1974-08-30 | 1974-08-30 | Process for producing Cu-base alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1507227A true GB1507227A (en) | 1978-04-12 |
Family
ID=23995852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31013/75A Expired GB1507227A (en) | 1974-08-30 | 1975-07-24 | Process for producing copper base alloys |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3929516A (en) |
| JP (1) | JPS5143314A (en) |
| AU (1) | AU502316B2 (en) |
| CA (1) | CA1045009A (en) |
| DE (1) | DE2536167B2 (en) |
| FR (1) | FR2283239A1 (en) |
| GB (1) | GB1507227A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2490116A1 (en) * | 1980-09-12 | 1982-03-19 | Gp Konstruk | Prodn. of brass pipes - by cold working a tubular blank and then annealing in a protective atmos. |
| KR890003966B1 (en) * | 1984-05-23 | 1989-10-14 | 스미또모 덴끼 고오교 가부시기가이샤 | Wire electrode for wire electro-discharge machine |
| US4728372A (en) * | 1985-04-26 | 1988-03-01 | Olin Corporation | Multipurpose copper alloys and processing therefor with moderate conductivity and high strength |
| US8746008B1 (en) * | 2009-03-29 | 2014-06-10 | Montana Instruments Corporation | Low vibration cryocooled system for low temperature microscopy and spectroscopy applications |
| US11125663B1 (en) | 2016-03-11 | 2021-09-21 | Montana Instruments Corporation | Cryogenic systems and methods |
| US10775285B1 (en) | 2016-03-11 | 2020-09-15 | Montana Intruments Corporation | Instrumental analysis systems and methods |
| US10451529B2 (en) | 2016-03-11 | 2019-10-22 | Montana Instruments Corporation | Cryogenic systems and methods |
| WO2020076988A1 (en) | 2018-10-09 | 2020-04-16 | Montana Instruments Corporation | Cryocooler assemblies and methods |
| US11956924B1 (en) | 2020-08-10 | 2024-04-09 | Montana Instruments Corporation | Quantum processing circuitry cooling systems and methods |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3259491A (en) * | 1963-05-21 | 1966-07-05 | Olin Mathieson | Copper base alloys and process for preparing same |
| US3788902A (en) * | 1972-11-24 | 1974-01-29 | Olin Corp | Process for improving the elongation of grain refined copper base alloys |
| US3841921A (en) * | 1973-03-02 | 1974-10-15 | Olin Corp | Process for treating copper alloys to improve creep resistance |
-
1974
- 1974-08-30 US US501990A patent/US3929516A/en not_active Expired - Lifetime
-
1975
- 1975-07-24 CA CA232,192A patent/CA1045009A/en not_active Expired
- 1975-07-24 GB GB31013/75A patent/GB1507227A/en not_active Expired
- 1975-07-28 AU AU83432/75A patent/AU502316B2/en not_active Expired
- 1975-08-05 FR FR7524414A patent/FR2283239A1/en active Granted
- 1975-08-07 JP JP50096275A patent/JPS5143314A/ja active Pending
- 1975-08-13 DE DE2536167A patent/DE2536167B2/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| US3929516A (en) | 1975-12-30 |
| AU8343275A (en) | 1977-02-03 |
| DE2536167A1 (en) | 1976-03-11 |
| DE2536167B2 (en) | 1979-02-08 |
| JPS5143314A (en) | 1976-04-14 |
| AU502316B2 (en) | 1979-07-19 |
| FR2283239B1 (en) | 1978-10-13 |
| FR2283239A1 (en) | 1976-03-26 |
| CA1045009A (en) | 1978-12-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |