Gold is an earlier metal discovered and utilized by humans. Because of its rare, special and precious, it has been regarded as the head of hardware since ancient times. It has the title of "King of Metals" and enjoys the reputation that other metals cannot compare. Its prominent position is almost eternal. Because gold has the status of this "nobleman", it was a symbol of wealth and luxury for a period of time. It was used as financial reserves, currency, jewelry, etc. So far, the application of gold in the above fields still accounts for the main position.
With the development of society, the economic status and application of gold are constantly changing. Its monetary functions are declining, and the application of industrial and high -tech fields is gradually expanding.
The main use of gold:
1. Used as international reserves
This is determined by the currency attribute of gold. Due to the excellent characteristics of gold, the function of gold as currency in history, such as value scale, circulation means, storage methods, payment methods and world currencies. With the development of socio -economic development, gold has withdrawn from circulation. After the decoupling of gold and the US dollar since the 1970s, the monetary functions of gold have also weakened, but they still maintain a certain monetary function. At present, many countries, including international reserves in major Western countries, still occupy a very important position.
2. Used as jewelry decoration
Gorgeous gold jewelry has always been a symbol of a person's social status and wealth.
3. Applications in industry and technology
It because gold has a unique and perfect nature, it has extremely high corrosion stability; Capture the effective cross section of neutron; the reflection capacity of infrared rays is close to 100 %; it has various touch -media properties in the alloy of gold; gold is also good for processing into ultra -thin gold foil, micron gold silk and gold powder; gold; gold; gold; gold; gold; gold; gold; gold; It is easy to be plated on the surface of other metals and pottery and glass. Under a certain pressure, gold is easily welded and forged; gold can be made into superconductors and organic gold. Because of so many beneficial properties that it has reasons to widely use the most needed modern high -tech industries, such as:
(1) Application of Gold in the instrument manufacturing industry
With the development of science and technology, the requirements for various instruments are getting higher and higher. Gold's application on various precision automation instruments has also increasingly possess important amounts.
The widespread use of pulse transformation and angular displacement in industrial measurement and control equipment. The potential measurement occupies an important position. The potential quality is the decisive factor in the measurement of the working accuracy of the measurement control system. For this reason, this device is often required to work for a long time at different temperatures of various industrial atmosphere. This is the reason why gold or alloy is used as a key material for precision potential.
The materials applied in the test technology have high ratio resistance, and the temperature coefficient of the resistance to zero is small, so that the resistance is the constant when working (maintain the constant constant (maintain the constant constant The difficulty is very difficult). Gold -合 — chromium alloy, gold -钯 — manganese alloy, gold — 钯 — 钒 金 金, gold -钯 — iron alloy can meet the above requirements, and the mechanical properties and thermal stability of processing have achieved good s level.
(2) Application of gold in the electronics industry
The stability, conductivity, toughness, ductility, etc. of the electronic component, almost all of them in gold and its alloys Can meet the requirements. Therefore, the amount of gold in the electronics industry accounts for more than 90%of the industrial gold, and the amount of dosage increases annually.
(3) Application of gold on conductive materials
gold wire, gold foil, components suppressed with gold powder, gold alloy, and gold alloy materials (such as gold -packed gold Glass, golden ceramics, and golden quartz) are used as conductive materials for conductive equipment, semiconductor equipment and miniature circuits as conductive materials. Such as the production of semiconductor integrated circuits, the semiconductor integrated circuit lead framework is made of a high -speed punching material with a leading frame material. The qualified lead frame is cleaned, local gold plating (the thickness of the gold -plated layer is not less than 1 micrometer), the chip is loaded, and the key is combined. The semiconductor integrated circuits can be made into a semiconductor integrated circuit. Gold and gold alloy are used in the electronics industry as the internal and external leads, such as the alloy alloy wire (according to GB / T8750-1997).
It gold is also widely used in electrical contact materials, gold -based welded, electronic slurry, astronal industry, lubricating materials, chemical industry, optical and medicine and other aspects.
Pay content for time limit to check for freenAnswering gold has a effect of improving temperament. The yellow color is luxurious, charming, and beautiful. Wearing gold -made jewelry on the body can add a luxurious and charming temperament. In addition, gold is a very precious metal. Its price is on the rise, so gold is often used to collect value -added.nGold is often made into jewelry on the body, and when wearing gold jewelry, the jewelry can continue to rub with the skin. The friction is also a physical massage of local skin.nFrom ancient times to the present, gold is the representative of Ronghua and rich, so wearing gold jewelry can also make people look like noble temperament. The antioxidant effect of gold has a certain delaying aging effect for women, which can reduce the appearance of the face skin. This is also one of the benefits of wearing gold jewelry. Among the many decorations, gold occupies an irreplaceable place. Wearing gold not only settle the elegant gas field of people, but also helps stable and mania. The benefits of bringing gold are reflected as beneficial to wound repair. This is mainly for earrings. Everyone thinks that gold ear piercing can prevent inflammation of the ear pierced and heal faster.n1 morenBleak
Gold is an earlier metal discovered and utilized by humans. Because of its rare, special and precious, it has been regarded as the head of hardware since ancient times. It has the title of "King of Metals" and enjoys the reputation that other metals cannot compare. Its prominent position is almost eternal. Because gold has the status of this "nobleman", it was a symbol of wealth and luxury for a period of time. It was used as financial reserves, currency, jewelry, etc. So far, the application of gold in the above fields still accounts for the main position.
With the development of society, the economic status and application of gold are constantly changing. Its monetary functions are declining, and the application of industrial and high -tech fields is gradually expanding.
The main use of gold:
1. Used as international reserves
This is determined by the currency attribute of gold. Due to the excellent characteristics of gold, the function of gold as currency in history, such as value scale, circulation means, storage methods, payment methods and world currencies. With the development of socio -economic development, gold has withdrawn from circulation. After the decoupling of gold and the US dollar since the 1970s, the monetary functions of gold have also weakened, but they still maintain a certain monetary function. At present, many countries, including international reserves in major Western countries, still occupy a very important position.
2. Used as jewelry decoration
Gorgeous gold jewelry has always been a symbol of a person's social status and wealth.
3. Applications in industry and technology
It because gold has a unique and perfect nature, it has extremely high corrosion stability; Capture the effective cross section of neutron; the reflection capacity of infrared rays is close to 100 %; it has various touch -media properties in the alloy of gold; gold is also good for processing into ultra -thin gold foil, micron gold silk and gold powder; gold; gold; gold; gold; gold; gold; gold; gold; It is easy to be plated on the surface of other metals and pottery and glass. Under a certain pressure, gold is easily welded and forged; gold can be made into superconductors and organic gold. Because of so many beneficial properties that it has reasons to widely use the most needed modern high -tech industries, such as:
(1) Application of Gold in the instrument manufacturing industry
With the development of science and technology, the requirements for various instruments are getting higher and higher. Gold's application on various precision automation instruments has also increasingly possess important amounts.
The widespread use of pulse transformation and angular displacement in industrial measurement and control equipment. The potential measurement occupies an important position. The potential quality is the decisive factor in the measurement of the working accuracy of the measurement control system. For this reason, this device is often required to work for a long time at different temperatures of various industrial atmosphere. This is the reason why gold or alloy is used as a key material for precision potential.
The materials applied in the test technology have high ratio resistance, and the temperature coefficient of the resistance to zero is small, so that the resistance is the constant when working (maintain the constant constant (maintain the constant constant The difficulty is very difficult). Gold -合 — chromium alloy, gold -钯 — manganese alloy, gold — 钯 — 钒 金 金, gold -钯 — iron alloy can meet the above requirements, and the mechanical properties and thermal stability of processing have achieved good s level.
(2) Application of gold in the electronics industry
The stability, conductivity, toughness, ductility, etc. of the electronic component, almost all of them in gold and its alloys Can meet the requirements. Therefore, the amount of gold in the electronics industry accounts for more than 90%of the industrial gold, and the amount of dosage increases annually.
(3) Application of gold on conductive materials
gold wire, gold foil, components suppressed with gold powder, gold alloy, and gold alloy materials (such as gold -packed gold Glass, golden ceramics, and golden quartz) are used as conductive materials for conductive equipment, semiconductor equipment and miniature circuits as conductive materials. Such as the production of semiconductor integrated circuits, the semiconductor integrated circuit lead framework is made of a high -speed punching material with a leading frame material. The qualified lead frame is cleaned, local gold plating (the thickness of the gold -plated layer is not less than 1 micrometer), the chip is loaded, and the key is combined. The semiconductor integrated circuits can be made into a semiconductor integrated circuit. Gold and gold alloy are used in the electronics industry as the internal and external leads, such as the alloy alloy wire (according to GB / T8750-1997).
It gold is also widely used in electrical contact materials, gold -based welded, electronic slurry, astronal industry, lubricating materials, chemical industry, optical and medicine and other aspects.
Pay content for time limit to check for freenAnswering gold has a effect of improving temperament. The yellow color is luxurious, charming, and beautiful. Wearing gold -made jewelry on the body can add a luxurious and charming temperament. In addition, gold is a very precious metal. Its price is on the rise, so gold is often used to collect value -added.nGold is often made into jewelry on the body, and when wearing gold jewelry, the jewelry can continue to rub with the skin. The friction is also a physical massage of local skin.nFrom ancient times to the present, gold is the representative of Ronghua and rich, so wearing gold jewelry can also make people look like noble temperament. The antioxidant effect of gold has a certain delaying aging effect for women, which can reduce the appearance of the face skin. This is also one of the benefits of wearing gold jewelry. Among the many decorations, gold occupies an irreplaceable place. Wearing gold not only settle the elegant gas field of people, but also helps stable and mania. The benefits of bringing gold are reflected as beneficial to wound repair. This is mainly for earrings. Everyone thinks that gold ear piercing can prevent inflammation of the ear pierced and heal faster.n1 morenBleak