Hello! What type of welding piece should I choose to weld the inverted mould chain of thousands of gold?

1. Thousands of gold are welded by self-fluxing, and the components are usually connected by laser welding machine and gold wire, and the other is mass production by chain making machine (the specific welding method is unknown, and it is estimated that it is also laser welding); Because it is related to the purity of products, pure gold and thousands of pure gold cannot be welded with K-gold welding tabs. Except for some small accessories. There are strict requirements in this related national standard.

2. 18K gold welding tabs are suitable for welding gold alloys with purity below 75%, and generally welding tabs with the same purity are used.

3. K-gold welding tabs can be self-matched, but the corresponding purity requirements should be guaranteed. For example, 14K welding tabs cannot be used for gold alloys with purity greater than 14K gold. The melting point of K-gold welding lug depends on the composition and melting point of the joint metal.