K gold jewelry craft

Enough gold, English as FINE GOLD, its content was 99.9%, gold jewelry is very popular in our country have been outside, and has a long history. However, in recent years, with the advancement of science and technology, new technologies and new processes have been continuously applied. The gold jewelry manufacturing industry has also made great progress. In the past, the situation of the world dominated by gold jewelry has ceased to exist. The colorful, gorgeous and luxurious 18K gold jewellery has won people's hearts with its unique and exquisite craftsmanship. It will be subtly integrated with the mysterious and fantasy natural gemstones , showing a charming style.

Adding 25% of other metals (usually copper , silver , zinc , nickel ) to the gold is a gold alloy, 18K gold. However, in practical applications, the color of the gold should be measured first, and then the proportion of copper, silver and other metals added should be calculated according to the color of the gold. The calculation formula is the weight of other metals to be added = (original gold purity - 75%) / 75% × original gold weight.

The usual practice is to combine copper and silver with other metals, commonly known as the pair, Hong Kong is known as the mouth. Then synthesize with the gold. According to this principle, a slight change of the formula can also be configured into 14K, 12K, 9K and so on. According to China's national standards (GB11887-89), the purity range of K gold is shown in the relevant regulations. Purity is expressed as the lowest value and must not have a negative tolerance. In other words, the gold content of 18K gold can not be lower than 75%, otherwise it is a substandard product.

Since 25% of other metals are added to the gold, the color of the 18K gold is rich and colorful, and several 18K gold formulas and colors are shown in the "18K Gold Formula and Color Statistics Table".

18K gold formula and color statistics (%)

It can be seen from the above formulas that although their gold content is the same, the ratios of silver, copper, zinc and nickel are different, the colors are different, and the hardness, melting point and toughness between them are Even the processing technology will be different, which is the value of 18K gold.

Which formula to choose is good, this requires specific analysis of specific issues. Hand-machined 18K gold should not be too high in hardness, but also consider its toughness. The 18K gold used for casting should be as low as possible to reduce its melting point. Improve liquidity. 18K gold used for tableting, drawing and plating should pay attention to the effect of zinc on it. In short, we must take care of all things, treat them differently, and use our strengths to avoid weaknesses. As for the color, it can be adjusted according to the traditional habits of different regions, aesthetic psychology and viewing level. At present, Europe, the United States, Hong Kong and Taiwan like white, most of China likes red or full gold. In addition, we must pay attention to the development of 18K gold and the trend of consumption. At present, not only popular K gold jewelry, such as 18K, 14K, 12K, 9K, but also popular color K gold jewelry, such as red, white, black and so on.

18K gold jewelry is superior to gold jewelry in many ways.

First, high hardness

The gold jewellery has a hardness of 2.5, is soft, and is easily deformed and worn. Anyone who has worn a full set of gold jewelry has experience, a good end of the ring, can not be worn for a long time to bend, the pit is very disappointing. The 18K jewellery has become a gold alloy due to the addition of other metals, and the hardness has reached about 3.5, which has become an alloy metal that is both wear-resistant, corrosion-resistant and not easily deformed. The increase in gold hardness has promoted the rapid development of the jewellery industry, breaking the habit of traditional hand-crafted jewellery for thousands of years, and changing the original backward processing technology. Now the jewellery processing is not only inlaid, but also inlaid and set. Wait. This is impossible for the gold jewelry.

Second, the color is rich

There is only one color in the gold jewelry, the true color of gold. The emergence of 18K gold brought people to a colorful world. When the gold is ingeniously combined with other metals, it will appear red, yellow, blue, green, black, white... It is no exaggeration to say that the color of K gold can be freely desired.

Third, the style of the new wave

The style of the gold jewelry is relatively monotonous and the foot board. And the style of 18K jewelry can be as many as tens of thousands and hundreds of thousands of kinds. Its novelty and beauty can be synchronized with the times.

Fourth, more varieties

In addition to making rings, earrings, necklaces and bracelets, 18K gold can also be made into brooch, boutonniere, waist and shoulder, as well as various ornaments and pendants. It can also be widely used in industrial products. 18K gold products are coated with a layer of gold, so that there is a full gold color, and the strength of K gold, the best of both worlds. Platinum-studded rings are plated with a few white gold roads to complement the jewels. If you put a layer of 18K gold on the 18K ring, it will make 8K gold higher and more beautiful. But pay attention to the maintenance and maintenance of 18K electroplated products. To reduce friction on the surface of the ring and collision with sharp parts, it will cause the coating to fall off. But not all 18K products are processed by electroplating. Most 18K jewellery is also glamorous without electroplating.