产品信息 - Silver alloy wire->Silver alloy wire

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Shanghai China-hope Electrical Alloy Co., Ltd

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Silver alloy wire

产品分类 :

冶金礦產->重金屬->銀線

产品描述

Features:
1) Silver and fine silver possess very high electric and thermal
conductivity
2) Low and stable contact resistance and good processing and welding
performance
3) Because of a little nickel added into silver, fine silver has higher
intensity and thermal-resistance performance than silver under same
contact resistance
4) Its fusion resistance and arc burning resistance are better than that of
silver
5) Under the same application condition, fine silver can take the place of
silver
6) AgNi material with 10～40% of high melting-point metal nickel has high
electric conductivity, low contact resistance and little burning loss
7) This material has little transfer when connecting and breaking direct
current
8) To be widely used to AC and DC low-voltage devices, such as
relays, instruction switches, can switches, assisting contactors
9) Instrument switches, optical control switches,temperature controller
and washing machine timers
10) AgZnO has higher thermal stability than AgCdO, therefore, has better
fusion resistance and arc burning resistance
11) Its contact resistance is high
12) Since AgZnO is innoxiously and has no pollution to the environment
13) One of the ideal materials to substitute AgCdO at present
14) AgCdO is the most used contact material at present
15) CdO obviously increased the fusion resistance or cohesive resistance of
the contacts at the moment of getting through big current
16) The sublimation of CdO cools the contact surface
17) Lowers the arc energy and extinguishes the arc
18) AgCdO can meet the main requirements of low-voltage apparatus to
contacts, such as arc burning resistance at big-current switching-on,
low and stable contact resistance under various loads and good arc
extinguishing performance since Cd pollutes the environment
19) Other materials are substituting it
20) To be used to low-0voltage apparatus with medium or high load,
typically use to micro switches, relays, protection switches, contactors
and auto-switches
21) AgSnO2 and AgSnO2 In2O3 are the ideal environment-protecting
materials for substituting AgCdO
22) Since SnO2 has better thermal stability and higher hardness than CdO,
AgSbO2 ABD AgSnO2 In2O3 is higher and it is more difficult to processing
these two materials
23) To be used to substitute AgCdO material in the low-voltage apparatus
field, such as breakers, contactors and relays, etc. Especially being
used to DC apparatus for automobiles, such contactors, starters and photo
switches
24) The AgC contact material containing 3～5% graphite bears the highest
fusion resistance, low contact resistance and small temperature rise in
switching on short circuit current. and is self-lubricated when being
used as a sliding contact
25) The AgC contact material manufactured by sintering and extrusion process
not only has high density, but also has a lower burning loss rate under
arc action due to the fiber-oriented graphite particles
26) Usually used with Cu or AgNi in pairs
27) AgW is a W-based sintered contact material containing silver
28) The good thermal and electric conductivities of silver and the high
melting point and burning-loss resistance of tungsten are combined
together for AgW
29) The hardness of AgW is high. Therefore the mechanical wear of AgW in the
make and break process is small and its fusion resistance when making
current is good
30) The oxide produced in the make and break process makes its contact
resistance high
31) AgWC contact material containing 12-65% high-65% high-melting-point
and high-hardness WC has high hardness, high wear resistance, small fusion
tendency, and stable contact resistance which however, is higher than AgW


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