Processing technique for hard pure gold accessories

Abstract

A processing technique of electroforming for hard pure gold accessories, including carving waxwork, making silica molding, grafting wax, trimming wax, oiling, electroforming, wax removing and quality inspection, characterized in that LJJAS compounding agent was added to the electrolytic solution, the electroforming temperature is between 50 to 60 degrees, the electroforming speed is 0.05 g/h and pH value of electrolytic solution is between 7.0 to 7.5. Thus, even distribution, strong covering capacity, thin coating, short molding time, big size, lighy weight and high hardness can be achieved. This processing technique is particularly suitable to the gold processing industry.

1 . A processing technique for hard pure gold accessories, including carving waxwork, making silica molding, grafting wax, trimming wax, oiling, electroforming, wax removing and quality inspection, characterized in that LJJAS compounding agent was added to the electrolytic solution, the electroforming temperature is between 50 to 60 degrees, the electroforming speed is 0.05 g/h and pH value of electrolytic solution is between 7.0 to 7.5. 
   
   
       2 . The processing technique for hard pure gold accessories according to  claim 1 , characterized in that the ingredient contents of LJJAS compounding agent are as follows, gold salt 62-75%, antimony 0.02-0.04%, oxalic acid 24-28% and silver, copper 3.8-4.0%. 
   
   
       3 . According to  claim 1  or  2  processed hard pure gold accessories.