2014年12月5日星期五

About electrical contacts


There are kinds of electrical contacts, LML mainly produce silver electrical contact rivets, dear customers,this article from LML Engineering Dep. will introduce something about electrical contacts and answer some questions,such as “what is electrical contacts, electrical contacts

Types how to choose right contact material for different application...

First,according to the different shape,the electrical contacts have the following types:

                                                              Silver Electrical Contact Rivets
 

                                                              Silver  Electrical Contact Tips disc


                                                               Silver Bimetal Electrical Contact Rivets


                                                               Button Silver Electrical Contacts
 
 
                                                              Silver  Electric Contact Tips square
 
 
                                                               Silver Electric Contacts brazed
 
 
 
 
 
The silver electric contact, called “the core of switch”, is a critical part of various switches, breakers,connectors,relays and other low-voltage apparatus
LML's material factory produce electric contact of silver (Ag) with ceramic material (SnO2, In2O3,  ZnO, CuO)  or silver (Ag) / Copper(Cu) with high melting-point metals (WC, W, Mo ,  Ni , C) .     


The features of LML silver electrical contacts : high electric conductivity, good erosion-resistance and anti-welding, and using four integrated technologies : cold-bonding,

internal oxidation, powder metallurgy and brazed rivet.




To conform the Restriction of RoHS and WEEE ,LML successfully developed environmentally (Green) silver contact material and other precious material, to supply electric & electronic

plants for various appliances.




The contact material used For Electrical Contact Rivet




Some contact material we called Green Electric Contact Materials including Ag , AgCu , AgNi , AgSnO2 , AgSnO2In2O3 … …




About Ag(pure silver) ,The Composition is Ag 99.95 or Ag 99.85,Ni 0.15

About AgCu, we use Ag 80, Cu 20 or Ag 75, Cu 25

About AgNi,we usually use Ag 90, Ni 10 ; Ag 85, Ni 15

About AgSnO2, we usually use Ag 92, SnO2 8 ; Ag 90, SnO2 10

About AgSnO2In2O3 , we usually use Ag 92, SnO2In2O3 8 ; Ag 88, SnO2In2O3 12







Traditional Electrical Contact Materials is AgCdO,now we seldom use it.

The main Composition have 5 types, Ag 90, CdO 10 ; Ag 88, CdO 12 ; Ag 86, CdO 14 ; Ag 85, CdO 15 ; Ag 84, CdO 16




  

... this article will be updated soon

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