The welding method of yellow and platinum ornaments and the yellow platinum tripod adopting the welding method

Abstract

The invention discloses a welding method for yellow and platinum ornaments. First, the platinum semi-finished product is fixed by an auxiliary fixture, then the gold semi-finished product is aligned with the platinum semi-finished product, and the junction of the gold semi-finished product and the platinum semi-finished product is electrically welded and positioned by laser welding; Preheat the junction of the platinum semi-finished product; then, aim the torch flame at the junction of the gold semi-finished product and the platinum semi-finished product for welding, and continuously move or rotate the fixture at a uniform speed to form a uniform seamless welding structure throughout the joint. The invention also discloses a yellow-platinum tripod using a yellow-platinum welding method, comprising a platinum semi-finished tripod base, two gold lugs welded on the upper end of the platinum semi-finished tripod base, and a golden tripod welded in the middle of the platinum semi-finished tripod base. belly, three golden feet welded on the bottom of the platinum semi-finished tripod base. The invention enables the platinum and gold ornaments to be firmly joined and has a beautiful appearance, and the method is simple to operate and pollution-free.

Description

technical field The invention relates to the field of metal welding processing, in particular to a welding method for yellow and platinum ornaments. The invention also relates to a yellow and platinum gold tripod using a welding method for yellow and platinum ornaments. Background technique As the raw material of jewelry, precious metals are becoming more and more popular in the market, and consumers are increasingly keen on jewelry with rich colors. Before that, there was no yellow platinum jewelry, only gold, platinum, 18K and other plain gold jewelry appeared. The color of jewelry is relatively simple. In addition, the melting point of gold is around 1064°C, and the melting point of platinum is 1772°C. Due to the large difference between the melting points of the two, it is very difficult to weld yellow platinum. Auxiliary flux is used on the part, and then the flux is melted to form a molten pool at the docking part of the jewelry, and the semi-finished jewelry is weld...

AI Technical Summary

Problems solved by technology

Due to the low melting point of welding powder, usually around 700°C, if the temperature of the welding torch is not properly controlled, it is prone to "soldering" phenomenon, and the melting point of gold and platinum is quite different. The general welding process often leads to weak welding and deformation of the welding part , affecting the appearance and appearance of handicrafts; in addition, the use of welding flux will reduce the purity of the entire jewelry, and it is easy to produce harmful gases at high temperatures, polluting the environment

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