Cooling ring for welding bellows generating less metal powder

Abstract

Provided is a cooling ring for welding used to manufacture a bellows including a plurality of pairs of barriers, each pair formed of a first barrier and a second barrier disposed to face the first barrier. The cooling ring includes a body formed as a circular arc shape, disposed to attach the first barrier and the second barrier closely to each other while being in contact with at least one of the first barrier and the second barrier, the body including copper and a plating layer plating the body. The plating layer includes at least one selected from the group consisting of nickel and chrome. Since the cooling ring includes the body having the circular arc shape including copper and the plating layer plating the body, it is possible to prevent powder of a metal having high electrical conductivity, such as copper, aluminum, gold, and silver, during a welding process.

1 . A cooling ring for welding used to manufacture a bellows comprising a plurality of pairs of barriers, each pair being formed of a first barrier and a second barrier disposed to face the first barrier, the cooling ring comprising:
 a body formed as a circular arc shape, disposed to attach the first barrier and the second barrier closely to each other while being in contact with at least one of the first barrier and the second barrier, the body comprising copper; and   a plating layer plating the body,   wherein the plating layer comprises at least one selected from the group consisting of nickel and chrome.   
     
     
         2 . The cooling ring of  claim 1 , wherein the plating layer contains 99 or more parts by weight of nickel for the total 100 parts by weight. 
     
     
         3 . The cooling ring of  claim 1 , wherein the plating layer contains 99 or more parts by weight of chrome for the total 100 parts by weight. 
     
     
         4 . A cooling ring for welding used to manufacture a bellows comprising a plurality of pairs of barriers, each pair being formed of a first barrier and a second barrier disposed to face the first barrier,
 the cooling ring disposed to attach the first barrier and the second barrier closely to each other while being in contact with at least one of the first barrier and the second barrier, and   the cooling ring comprising at least one selected from the group consisting of tungsten, molybdenum, nickel, and chrome.   
     
     
         5 . The cooling ring of  claim 4 , containing 99 or more parts by weight of tungsten for the total 100 parts by weight. 
     
     
         6 . The cooling ring of  claim 4 , containing 99 or more parts by weight of molybdenum for the total 100 parts by weight. 
     
     
         7 . The cooling ring of  claim 4 , containing 99 or more parts by weight of nickel for the total 100 parts by weight. 
     
     
         8 . The cooling ring of  claim 4 , containing 99 or more parts by weight of chrome for the total 100 parts by weight.