Nickel Silver Sheet/strip/wireThe following grades of Nickel Silver are manufactured:
1. 25% Ni 20%Zn
2. 15% Ni 20%Zn
3. 18% Ni 18%Zn
4. 18% Ni 26%Zn
It is an alloy of Copper, Nickel and Zinc various types manufactured contain copper between 58% to 62%, Nickel between 8 to 16% and balance Zinc. Nickel Silver is used mainly in wire and strip form for manufacture of frame and Zip manufacturing industry.
Parameter for Nickel Silver Sheet/Copper Nickel Zinc Sheet:Â
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|
Alloy No. |
Chemical Composition | |||
| Cu | Mn | Ni | Zn | |
| C75200 | 63.0-66.5 | 0-0.5 | 16.5-19.5 | Remainder |
| C7541 | 60.0-64 | 0-0.5 | 12.5-15.5 | Remainder |
| C77000 | 53.5-56.5 | 0-0.5 | 16.5-19.5 |
Remainder  |
|
Alloy No. |
Quality Grade | Shanghai Properties | |||
| Tensile | Elongation | Hardness Test | |||
| Strength | |||||
| (Kgf/mm 2 ) | JIS | ShanghaiMetal | |||
| Â | Standards | ||||
| C75200 | O | ≥ 38 | ≥ 20 | - | ≥ 110 |
| 1/4H | 38~46 | ≥ 10 | - | 110~140 | |
| 1/2H | 44~52 | ≥ 5 | 120~180 | 130~160 | |
| 3/4H | - | - | - | - | |
| H | 52~60 | ≥ 3 | > 150 | 150~180 | |
| EH | ≥ 58 | - | - | ≥ 180 | |
| SH | - | - | - | - | |
| C7541 | O | ≥ 36 | ≥ 20 | - | ≥ 110 |
| 1/4H | - | - | - | - | |
| 1/2H | 42~55 | ≥ 5 | 110~170 | 110~150 | |
| 3/4H | - | - | - | - | |
| H | ≥ 50 | ≥ 3 | > 135 | ≥135 | |
| EH | - | - | - | - | |
| SH | - | - | - | - | |
| C7700 | O | - | - | - | - |
| 1/4H | - | - | - | - | |
| 1/2H | 55~67 | ≥ 8 | 150~210 | 140~200 | |
| 3/4H | - | - | - | - | |
| H | 64~75 | ≥ 4 | 180~240 | 175~220 | |
| EH | 72~82 | - | 210~260 | 195~240 | |
| SH | 78~88 | - | 230~270 |
210~250 Â |
|
|
Name |
state | tensile strength | elongation | Stantard |
| Â C75400 |
Soft Hard |
≥340Mpa ≥640Mpa |
≥35% ≥1% |
GB/T2059-2000 |
| Â C75200 |
Soft Hard |
≥375Mpa ≥540Mpa |
≥20% ≥3% |
 Q/HUAJ 26-2003 |
| Â C77000 | Soft Hard |
≥400Mpa ≥705-805Mpa |
≥40% ≥4% |
 Q/HUAJ 10-97  |
Applications for Nickel Silver Strips/Copper Nickel Zinc Strips:
1) Shielding material for communication electronics
2) Antenna material
3) EMI-shielding material
4) Spring contact
5) Flexible terminal
6) Environmentally-friendly plating-free electronic parts and components
7) Quartz oscillator
8) High-level material
9) Electric materialÂ
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Forms
Coil - Strip, Foil, Ribbon
Wire - Profile, Round, Flat, Square
rod, bar, forgings, plate, sheet
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Features
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Feature: Elasticity modulus: 115GPa
Good fatigue resistance.
Good electroplate performance
Welding performance is good
Fastness in high temperature
Good cold working, deep drawing, curve performance.
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Rolling mill oil film bearing technology, is a system engineering technology, at the same time, is also a multidisciplinary field of comprehensive engineering technology, its development speed and the formation of supporting capacity, from one side reflects the development speed of China's industry and the level reached. This paper briefly discusses several main aspects such as operation technology, manufacturing technology, testing technology, theoretical research, product development, and complete set of capabilities
1. Operation technology, including a complete set of knowledge and skills such as storage, cleaning, installation, commissioning, operation, maintenance, diagnosis, and management of rolling mill oil film bearing parts. The correct application of running technology is a reliable guarantee for the safe operation of bearings.
In the early 50s, only the reversible rolling mill of Anshan Iron and Steel Cold Rolling Mill in China was equipped with oil film bearings. Its operation and management are carried out in full accordance with the relevant regulations of the Soviet Union. In the traditional process, the rolling pressure is not large, the rolling speed is low, the lubrication system is also very simple, and the operating technology level is relatively low. However, in actual operation, the work of the relevant management, technical personnel and operators is very serious, strictly in accordance with the regulations, and has accumulated experience in use and maintenance.
Mill Tapered Bearings,High Speed Bearing,Waterproof Bearing,High Speed Friction Resistant Bearing
Hebei Fangqiang bearing manufacturing Co., LTD , https://www.fangqiangbearing.com