Hardware jewelry processing technology, is a variety of jewelry raw materials based on various forms of processing, the formation of finished products of all processes collectively. Including the manual processing technology, machine processing technology, precious metal jewelry surface treatment process.
1. Manual processing technology
Filament process
Filament process is the use of metal filaments by coil, pinch flowers, silk, heap and other means of making modeling fine gold process. The production of the first gold or silver and other metals into the required thickness of the wire, and then pull into the wire twisted together twisted together (the industry called rub silk), the production division in accordance with the drawings of the pattern with tweezers to pinch the wire into a variety of flowers, Save the shape of the various components together, sprinkle the powder too far, that is welded together to connect into a certain overall shape. The overall shape is known as the "black child", the black tires after acid cleaning, must also point silver, bluing, gold-plated or silver and other follow-up processing, and finally become a finished product. Filigree jewelry slim, compact, rich connotation, excellent effect of myopia.
2. Machine processing technology
(1) lost wax casting process
Lost wax casting is now the most important jewelry industry in a production process, lost wax casting made of jewelry has become the mainstream of today's jewelry products. Pouring process for the convex and convex jewelry form, and can be mass-produced.
Lost wax casting process for the process: the production of metal model - to suppress the plastic mold - wax injection mold - wax tree - irrigation gypsum mold - casting casting.
(2) stamping process
Stamping process, also known as die punching, embossing, is a relief pattern manufacturing process. The method comprises the following steps: firstly, a mold is produced according to a mother mold, and then a relief pattern is formed on the metal by pressure. Stamping process: stamping patterns, molding (bending), the combination of the together (usually solder). Stamping process for the bottom of the convex jewelry, such as a small lock piece, or undulating obvious, easy to sub-step or multi-step stamping molding or combination of items, while the very thin parts and fine details of the jewelry need to use Stamping process processing.
(3) machine chain processing technology
Machine chain processing technology refers to the mechanical chain jewelry processing methods. Common Venetian chain, bead chain, back to the chain chain necklace by mechanical processing.
Machine chain processing the main process: drawing - chain - welding - surface treatment - assembly - clean.
Machine chain process is characterized by large batch processing, high efficiency, style and more good quality. Necklace jewelry in the market today has almost been occupied by mechanism necklace.