There are many gold brands. The purest brands of gold jewelry recommendation Zhou Dafu, Saturday Fu, Zhou Dasheng, etc., as follows: Zhou Dafu: The first Zhou Jewelry shop was founded in Hongde Road, Guangzhou in 1929 Golden line, mainly engaged in gold jewelry, means blessing and expensive. [Extended information] Rust: Although gold itself is not corroded, its chemical affinity with sulfide is very strong, and The surface is dark, such as orange, brown -red and other colors. The completion of the production of gold products requires many complex processes. It gold bars and gold coins as an example. They must go through the process of melting, crushing, cutting blanking, holding blank, fading, fried sour, polishing, suppression, and edge. In the vacuum environment, every link may encounter dust and impurities in the air, impurities adhere to the rough of the product. These impurities may become erythema without fading and pickling. In daily appreciation, do not touch gold products directly with your hands. Once erythema appears, you can ask professionals to burn the gold products on the fire to solve the problem, and basically it will not affect the quality of gold products. In addition to erythema and dark spots, gold products sometimes have white spots, especially gold jewelry. This is mainly because consumers often put gold jewelry in the drawer. In case of mercury, a large area of white spots will be formed immediately. Especially when women use mercury -containing cosmetics, they will be Contact will also produce white spots gold products. If they wear platinum and silver jewelry at the same time, they will also produce white spot phenomena after a long period of friction. four types of texture: The gold is gold that has been smelted and purified. Generally, the purity is higher and the density is fine. Some can be directly used in industrial production. M common gold bars, gold blocks, gold ingots, and various jewelry, utensils, gold coins, and industrial gold, gold, gold boards, etc. Due to the different uses, the required color is different, or because the device is not purified, only the melting is not pure, or the purity of the mention is not enough, forming a gold that is different. People are accustomed to dividing the cooked gold into three types: pure gold, red gold, and color gold according to the high and low. The gold that reached a fairly high purity after purification is called pure gold. Gold generally refers to pure gold with more than 99.6%. . The meaning of Chicin and pure gold is close, but due to the different time and local standards, the standards of Chijin are different. The gold sold in the international market is 99.6%of Chi Jin. The red gold in the territory is generally between 99.2%-99.6%. . The color gold, also known as the "secondary gold" and "tide gold", refers to the low color. Due to the different metal content of these gold, the high color is 99%high, and only 30%of the low. The is divided by different metals, cooked gold can be divided into color gold, mixed gold, K gold, etc. The color gold refers to gold only mixed with silver components, regardless of whether it is high or low. There are more color gold, commonly in gold bars, gold ingots, gold blocks and various utensils and gold jewelry. three, mixed gold refers to the gold inside the gold, in addition to the silver, but also contains other metals such as copper, zinc, lead, and iron. Depending on the type and quantity of the metal contained in, it can be divided into small mixed gold, large mixed gold, bronze mixed gold, and lead -containing large mixed gold. four, K gold refers to gold and copper according to a certain proportion of gold, according to the formula of 24K formula. Generally speaking, the more the proportion of k gold is silver, the more colorful the color; the large copper ratio is purple. k value expressed in the value is just a rough number, and it is not very accurate. Most of them are used to use even K value, such as 24K, 22K, 20K, 18K, etc. The meaning of 18K means that the 24 copies contain 18 copies of gold, which is equivalent to about 75%. K gold calculation method: The calculation formula of the gold content of K gold is: K value ÷ 24 × 100%(that is, K value × 4.1667%).
There are many gold brands. The purest brands of gold jewelry recommendation Zhou Dafu, Saturday Fu, Zhou Dasheng, etc., as follows:
Zhou Dafu: The first Zhou Jewelry shop was founded in Hongde Road, Guangzhou in 1929 Golden line, mainly engaged in gold jewelry, means blessing and expensive.
[Extended information]
Rust:
Although gold itself is not corroded, its chemical affinity with sulfide is very strong, and The surface is dark, such as orange, brown -red and other colors. The completion of the production of gold products requires many complex processes.
It gold bars and gold coins as an example. They must go through the process of melting, crushing, cutting blanking, holding blank, fading, fried sour, polishing, suppression, and edge. In the vacuum environment, every link may encounter dust and impurities in the air, impurities adhere to the rough of the product. These impurities may become erythema without fading and pickling.
In daily appreciation, do not touch gold products directly with your hands. Once erythema appears, you can ask professionals to burn the gold products on the fire to solve the problem, and basically it will not affect the quality of gold products.
In addition to erythema and dark spots, gold products sometimes have white spots, especially gold jewelry.
This is mainly because consumers often put gold jewelry in the drawer. In case of mercury, a large area of white spots will be formed immediately. Especially when women use mercury -containing cosmetics, they will be Contact will also produce white spots gold products. If they wear platinum and silver jewelry at the same time, they will also produce white spot phenomena after a long period of friction.
four types of texture:
The gold is gold that has been smelted and purified. Generally, the purity is higher and the density is fine. Some can be directly used in industrial production.
M common gold bars, gold blocks, gold ingots, and various jewelry, utensils, gold coins, and industrial gold, gold, gold boards, etc.
Due to the different uses, the required color is different, or because the device is not purified, only the melting is not pure, or the purity of the mention is not enough, forming a gold that is different. People are accustomed to dividing the cooked gold into three types: pure gold, red gold, and color gold according to the high and low.
The gold that reached a fairly high purity after purification is called pure gold. Gold generally refers to pure gold with more than 99.6%.
. The meaning of Chicin and pure gold is close, but due to the different time and local standards, the standards of Chijin are different. The gold sold in the international market is 99.6%of Chi Jin. The red gold in the territory is generally between 99.2%-99.6%.
. The color gold, also known as the "secondary gold" and "tide gold", refers to the low color. Due to the different metal content of these gold, the high color is 99%high, and only 30%of the low.
The is divided by different metals, cooked gold can be divided into color gold, mixed gold, K gold, etc. The color gold refers to gold only mixed with silver components, regardless of whether it is high or low. There are more color gold, commonly in gold bars, gold ingots, gold blocks and various utensils and gold jewelry.
three, mixed gold refers to the gold inside the gold, in addition to the silver, but also contains other metals such as copper, zinc, lead, and iron. Depending on the type and quantity of the metal contained in, it can be divided into small mixed gold, large mixed gold, bronze mixed gold, and lead -containing large mixed gold.
four, K gold refers to gold and copper according to a certain proportion of gold, according to the formula of 24K formula. Generally speaking, the more the proportion of k gold is silver, the more colorful the color; the large copper ratio is purple.
k value expressed in the value is just a rough number, and it is not very accurate. Most of them are used to use even K value, such as 24K, 22K, 20K, 18K, etc. The meaning of 18K means that the 24 copies contain 18 copies of gold, which is equivalent to about 75%. K gold calculation method: The calculation formula of the gold content of K gold is: K value ÷ 24 × 100%(that is, K value × 4.1667%).