Precious metals have been used as jewelry and inlaid jewelry materials because of their excellent stability, corrosion resistance and oxidation resistance. For more than 6000 years, gold, pearls and precious stones have often been placed side by side, representing wealth and authority.

Yellow metal jewelry includes gold, platinum and silver, and some metals as alloy components, including palladium, nickel, copper, zinc and tin.

The jewelry industry in China is quite large, but the employees still lack complete jewelry knowledge. Many newcomers don't know how to improve their professional level. Under the impact of market economy, the only way to keep your job is to arm yourself by self-study. catalogue

Chapter I Traditional Precious Metal Jewelry

golden

Types of gold jewelry

silver

Types of silver ornaments

Chapter II Application of Platinum Group Metals in Jewelry

platinum

palladium (Pd)

rhodium

Chapter III Traditional Manufacturing Methods of Precious Metal Jewelry

Vacuum melting of precious metal alloys

Ceramic molding K gold jewelry

Preparation of K gold jewelry by gypsum molding method

Preparation of platinum jewelry by gypsum molding

Brand and application of gypsum for commercial casting K alloy

Technology of casting K gold ring by vacuum dewaxing method

Rapid determination of purity of gold, silver and platinum

Chapter IV Precious Metal Electroplating

Electroless gold plating

Conductive coating

Precious metal electroplating series

Precious metal salt for electroplating

society

Silver plating on

Platinum plating

Palladium plating

Rodanin

Ruthenium coating

Electroplating solution for palladium-nickel alloy electroplating

Electroplating copper-tin-zinc-gold alloy layer (patented nickel plating substitute)

Electroplating Cu-Sn-Zn-Ag white alloy layer (patented nickel plating substitute)

On-site brush plating of 24K gold

Gold plating of stainless steel

Plastic plated with 24K gold.

Glass, fashion and porcelain are plated with 24K gold.

Selective plating of 24K gold on ore

Reverse casting of glass fiber glue and electroplating of 24K gold.

Electroplated 24K gold baby boots.

Copper electroplating on gypsum

Chapter V Hollow Electroforming of Jewelry

Hollow electroforming of precious metals

Hollow electroforming of k gold

Hollow electroforming of 18K gold shell.

Pure silver hollow electroforming (patent law)

Hollow electroforming of platinum

Design principle of hollow electroforming mold core

Chapter VI Gold Plating of Natural Small Organisms

Electroplating 24K gold on natural leaves and flowers.

Gold plating of small animals

Chapter VII Imitation and Gold Plating of Human Body Parts

Reproduction and gilding of baby's hands and feet

Copying and gilding of female jade hands

Copying and gilding of human face

Reproduction and gilding of female body

Chapter VIII Other Uses and Recovery of Gold and Silver

gold dust

powdered aluminium

Gold clay (mud)

Silver clay (mud)

gold foil

Water gold/liquid gold

Gold and silver coins dropped on the chest

Gold and silver chest pendant commemorative box

Gold jewelry sets off special-shaped pearls

Preparation of K gold chain, silver chain and platinum chain

Preparation of hollow gold chain

Gold plating of colored porcelain

Gold sets off the resurrection of diamonds.

Enamel gold bracelet

Fashion k gold watchband

Jinmai jewellery

Korean-style K gold watchband

Manufacture of watchcases by K-gold die casting

New technology of gold inlaid with precious stones

Thick gold foil ornament

Recovery and purification of gold from gold-bearing waste

Recovery and extraction of pure silver from silver-containing waste