How can the gold processing process be lighter?
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How can the gold processing process be lighter?
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Gold is first dissolved in the process of re -processing of gold, which requires a chemical agent with strong acidity and corrosiveness. Sit Electronics, commonly known as "Wang Shui". However, "Wang Shui" dissolves gold, and after chemical reactions, the gold can be retrieved again.
So some of the gold left on to become a normal loss of gold processing. At the same time, when the processing store will restore the gold that dissolves in the "king water", this part of gold will become their "profit".
The gold jewelry processing changing patterns, shaped molds are naturally indispensable, but many customers can also "steal gold" with the mold. "For example, you have to make a flower ring. After the owner of the processing store melts the gold, it will put it in the mold for burning pressure. After the burning pressure is over, the mold will be knocked out and the plastic flower ring will be taken out. Knowing that the gypsum mold may leave a little gold. The boss will throw away the use of the shaded mold in front of the customer, and the customer will pick up the mold and take out the gold.
The physical properties of gold are:
1, color:
The steam emitted when gold is melted is green; its gold powder during the smelting process is usually brown; if it will It is cast into a thin piece, and it can convey green light.
2, ductility:
is extremely strong. Make it easy to cast, it is the best choice for making jewelry. Gold is the strongest in the metal.
3, forgedness:
to the premier and fingertips. The heavy gold can be hammered to 4 million -foot thick and 100 square feet large. The ancients hammered it into thin pieces to decorate the temples and the palace. Forging.
The color of gold is golden, metal luster, and difficult to decompose. Hardness is 2-3, pure gold is 19.3, and the melting point is 1064.4 ° C. Thermality and conductivity, the resistance of pure gold is 2.4P. Pure gold has good anti -chemical corrosion and is the best electroplating material.
Gold as a precious metal, which has good physical characteristics. Not afraid of fire "is the high chemical stability of gold. It is not easy to have a chemical reaction with other substances. You don't have to worry about oxidation and discoloration. Even in the melting state, it will not be oxidized and discolored. Strong. High toughness and ductility, good guidance.
It pure gold has gorgeous yellow, but after incorporating other metals, the color changes greatly, such as dark red in gold and copper alloy. Gray -white. Jin Yi was grinded into powder, which is why gold is decentralized in nature. Pure gold jewelry is also easily worn and reduced weight.
79, that is, the atomic nucleus of the gold contains 79 protons, and the proton belt is positive. At the same time, because it is in line with half full rules, gold has good chemical stability. In the metal market Platinum metal is collectively referred to as precious metals.
. Although gold is a very soft metal, it is not as good as lead and tin metal. With nails on pure gold, traces can be drawn out. This softness makes gold very easy to process. However, this point is not ideal for the manufacturer of the decoration, because it is easy to cause the decoration to wound, make it lose its gloss and affect the beauty. Therefore, when making jewelry with gold, copper and copper and and Silver, to improve its hardness.
It gold is easy to forge and is easy to extend, which can be crushed into transparent and transparent green foil with a thickness of 0.001 mm. N reference Profile:
Baidu Encyclopedia-Gold
We often want to refurbish the old gold necklaces, gold rings, gold bracelets, etc., have we found that after the processing of small workshops, it looks new, but the weight of the high -precision electronic balance is reduced.
Gold processing must first dissolve it. This requires a chemical agent with strong acidity and corrosiveness. Sit Electronics, commonly known as "Wang Shui". However, "Wang Shui" dissolves gold, and after chemical reactions, the gold can be retrieved again. Therefore, some of the remaining gold becomes the normal loss of gold processing. At the same time, when the processing store will restore the gold that dissolved in the "king water", this part of gold will become their "profits".
The gold jewelry processing changing patterns, shaped molds are naturally indispensable, but many customers can also "steal gold" with the mold. "For example, you have to make a flower ring. After the owner of the processing store melts the gold, it will put it in the mold for burning pressure. After the burning pressure is over, the mold will be knocked out and the plastic flower ring will be taken out. The mold port may leave a little gold. The boss will throw away the molds used up in front of the customer, and the customer will pick up the mold and take out the gold. Big brand store.