GB683434A - A method for producing contact springs - Google Patents
A method for producing contact springsInfo
- Publication number
- GB683434A GB683434A GB16180/50A GB1618050A GB683434A GB 683434 A GB683434 A GB 683434A GB 16180/50 A GB16180/50 A GB 16180/50A GB 1618050 A GB1618050 A GB 1618050A GB 683434 A GB683434 A GB 683434A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- spring
- nickel
- contact
- followed
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/012—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of aluminium or an aluminium alloy
Abstract
In an electric contact spring comprising a low resistance contact portion bonded to a spring strip, the materials of the contact and spring parts have substantially the same hardening temperatures. The spring may be a beryllium bronze comprising 1.8-2 per cent beryllium, 0.25 per cent cobalt or 11 per cent nickel and the balance copper or a nickel-silver comprising 12 per cent nickel, 64 per cent copper and 24 per cent zinc. Phosphor bronze or brass may also be used. The contact material is a silver alloy containing 6-10 per cent copper and, if desired, small quantities of beryllium, nickel or both. The spring and contact materials are bonded by cold rolling followed by soft annealing at 550 DEG -700 DEG C for 4 hours in a non-oxidizing atmosphere. Solution treatment is then carried out at 750 DEG C followed by quick cooling in water. A reduction of 33-50 per cent is then effected by a final rolling, followed by a tempering of the spring by heating at 300 DEG C for 4 hours. The final rolling can take place after the tempering step, but if so, the reduction must not exceed 33 per cent.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE683434X | 1949-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB683434A true GB683434A (en) | 1952-11-26 |
Family
ID=20314983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16180/50A Expired GB683434A (en) | 1949-06-30 | 1950-06-28 | A method for producing contact springs |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB683434A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2344373A1 (en) * | 1976-03-20 | 1977-10-14 | Rau Fa G | METAL MULTI-LAYER COMPOSITE MATERIAL AND ITS MANUFACTURING PROCESS |
-
1950
- 1950-06-28 GB GB16180/50A patent/GB683434A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2344373A1 (en) * | 1976-03-20 | 1977-10-14 | Rau Fa G | METAL MULTI-LAYER COMPOSITE MATERIAL AND ITS MANUFACTURING PROCESS |
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