The manufacturing process of the entire coin can be summarized into three basic contents: selection of ingredients and blank cake processing, design modeling, and pressing. This selection and blank cake treatment (1) Selecting materials making coins can be made of different metal materials. Metals that are relatively common and low -priced are used to cast low -side coins, while rare metals are rare metals For example, gold, silver, and platinum are used to cast commemorative coins with investment and collection value. HON's good coin material requires a certain physical characteristics. For example, the metal texture should be soft and easy to process. At the same time, it must have considerable hardness to withstand the wear during circulation. Because there are very few metals with the above characteristics, the coin material is usually two or more metal melting alloys. In the United States and many other countries, the common metals include copper, zinc, nickel, iron, aluminum, etc. The copper is a very ideal coin -made material in terms of itself and constituent alloys. Gold and silver usually increase hardness with other metal alloys, and copper is the preferred material. The "pure" general gold and silver coins are usually contained in other metal components. Of course, its value is mainly estimated according to the content of precious metals in the currency. The specific process of manufacturing alloys is: (1) Put the selected metal in the furnace and melt into liquid alloys, pour it into the ingot (groove) to cool or be suppressed into strips (thicker); The ingots or thicker strips are rolled several times to make it a piece of pieces required by the thickness that the thickness meets the blank cake; (2) The treatment of blank cakes The coins are printed by the blank cake. The quality of the blank cake directly affects the quality of the finished product. Therefore, the treatment of the cake is a very critical link. The billet cakes that are stamped from the alloy strip are rough, the surface is not smooth and has hair edges around. It needs further precision processing. The specific steps are: (L) put the blank cake in a column -shaped extent -like disitation like a special mixer. Essence Sofele of the cake at high temperature. (2) The softened billet is cleaned in diluted acid or soap solution. (3) Use a special machine to grind and polish the blank cake. After the above treatment, the blank cake can be used directly to print coins. At the same time, in the other molding workshop, design modeling has begun.
The design mold (1) Mold and their working principles The people who do not know much about metallurgy can hardly imagine that hard metals can flow around like liquid, but this is It is an objective fact that returning to the solid metal can be deformed and deformed under pressure, just like turning a piece of (chip) steel plate into a car -shaped steel frame with various curves in the car manufacturer. The metal metal into a pattern coin needs to use the mold, and the two molds on the front and back, because the role of physical strength is mutual, that is, the strength of the strength and the opposite direction. Place the metal cake in the air to cast the coin. The actual method is to fix one of the molds and put the blank cake on it, and use another mold to move up and down to press it. pattern. The mold is generally made of special steel, and its surface is engraved with patterns and hard texture. It can make the coin surface show the mirror effect during the casting process. The original mold was hand -made, and the sculptor used special tools to engrave text, numbers and various patterns on the surface of the mold. With the advancement of technology, the modeling of modeling machines, plating, computer -aided design and other equipment and processes now generally use equipment and processes to replace manual, and the efficiency and accuracy have greatly improved. Because the surface of the coin is the relief mirror effect, each part of the work mode surface pattern is recessed, that is, the "yin model". In order to facilitate understanding, this example shows that a piece of aluminum foil is covered on a coin, repeatedly scraped it with rubbing, and then removed the aluminum foil. The pattern on the coin surface is protruding. In the same way, if the pattern on the surface of the coin is recessed, the surface pattern of the working mold is correspondingly protruding. (2) The pattern from the plane to the three -dimensional modeling process The design work of the pattern starts on the artist's plane drawing, and the plane pattern becomes the exquisite and realistic three -dimensional relief on the coin. : (1) The sculptor uses the oil and soil to show the plane patterns on the drawing through three -dimensional three -dimensional, and then turn it into a gypsum mold or resin mold; The protruding copper mold, also known as copper type or mother mold; (3) The three -dimensional pattern on the mother model is duplicated by the synchronous movement of the carved machine and the synchronization of the carving knife. On the mold blanks, this forms the original mold, also known as the sub -mold, and the surface of the relief effect is exactly the same as the actual coin; Repeat pressure to form work molds with concave and mirror effects under the pattern, and then use the work mold to quench and improve the hardness to prepare for pressure printing. The original model can be used repeatedly, stamping and flipping into many workmodes with exactly the same patterns. This is why some patterns that remain unchanged can be produced and uninterrupted throughout the year. It should be said that the new modeling process is not only more standardized, but also has greatly improved efficiency. It allows the original skilled sculptor to take a whole day to complete the work within a few hours.
This coin The previous work mode may only be printed with hundreds of coins, and the current workmoder can print millions of coins. Modern coin machines are an accurate and efficient equipment system. The pressure printing and automatic transmission are integrated. It continuously puts the blank cake to the pressure printing position at a very fast speed. As many as hundreds of coins burst out. In early people's coining methods by manual hammering, metal cushioning technology was adopted. This technology is still used, that is, a round hole with the same diameter of the coin on the metal plate, putting the billet cake putting the billet cake Enter the holes to prevent the blank cake from deforming due to pressure during stamping. The coins with the tooth side are required to be designed to be designed to teeth in the inside of the metal pad. When the machine is stamped, the tooth shape and positive back pattern around the billet cake are printed out at the same time to become a coin with the tooth side. The engraved workmodels and divided metal cushions are divided, and then the text is printed on the text. My modern coin compressor to fully apply mechanical mechanical principles to practice. The common stamping machine is to use the "crank power" to drive the stamping head to move up and down (like the joints of the finger bending and straight) to complete the pressure. It takes hundreds of tons of pressure to use the original model to make a workmade by hundreds of tons. Although the tonnage of the coin is smaller, it also requires considerable pressure. It takes 150 tons / square -inch pressure, and coins of other materials are basically within this range. It is to printed in circulating coins through the above mechanical processes.
n00:00 / 01: 3570% shortcut keys to describe space: Play / pause ESC: Exit full screen ↑: increase volume 10% ↓: decreases by 10% →: Single fast forward 5 seconds studio Here you can drag no longer appear in the player settings to reopen the small window shortcut key description
The manufacturing process of the entire coin can be summarized into three basic contents: selection of ingredients and blank cake processing, design modeling, and pressing.
This selection and blank cake treatment
(1) Selecting materials
making coins can be made of different metal materials. Metals that are relatively common and low -priced are used to cast low -side coins, while rare metals are rare metals For example, gold, silver, and platinum are used to cast commemorative coins with investment and collection value.
HON's good coin material requires a certain physical characteristics. For example, the metal texture should be soft and easy to process. At the same time, it must have considerable hardness to withstand the wear during circulation. Because there are very few metals with the above characteristics, the coin material is usually two or more metal melting alloys. In the United States and many other countries, the common metals include copper, zinc, nickel, iron, aluminum, etc. The copper is a very ideal coin -made material in terms of itself and constituent alloys. Gold and silver usually increase hardness with other metal alloys, and copper is the preferred material. The "pure" general gold and silver coins are usually contained in other metal components. Of course, its value is mainly estimated according to the content of precious metals in the currency. The specific process of manufacturing alloys is: (1) Put the selected metal in the furnace and melt into liquid alloys, pour it into the ingot (groove) to cool or be suppressed into strips (thicker); The ingots or thicker strips are rolled several times to make it a piece of pieces required by the thickness that the thickness meets the blank cake;
(2) The treatment of blank cakes
The coins are printed by the blank cake. The quality of the blank cake directly affects the quality of the finished product. Therefore, the treatment of the cake is a very critical link. The billet cakes that are stamped from the alloy strip are rough, the surface is not smooth and has hair edges around. It needs further precision processing. The specific steps are: (L) put the blank cake in a column -shaped extent -like disitation like a special mixer. Essence Sofele of the cake at high temperature. (2) The softened billet is cleaned in diluted acid or soap solution. (3) Use a special machine to grind and polish the blank cake. After the above treatment, the blank cake can be used directly to print coins. At the same time, in the other molding workshop, design modeling has begun.
The design mold
(1) Mold and their working principles
The people who do not know much about metallurgy can hardly imagine that hard metals can flow around like liquid, but this is It is an objective fact that returning to the solid metal can be deformed and deformed under pressure, just like turning a piece of (chip) steel plate into a car -shaped steel frame with various curves in the car manufacturer.
The metal metal into a pattern coin needs to use the mold, and the two molds on the front and back, because the role of physical strength is mutual, that is, the strength of the strength and the opposite direction. Place the metal cake in the air to cast the coin. The actual method is to fix one of the molds and put the blank cake on it, and use another mold to move up and down to press it. pattern. The mold is generally made of special steel, and its surface is engraved with patterns and hard texture. It can make the coin surface show the mirror effect during the casting process. The original mold was hand -made, and the sculptor used special tools to engrave text, numbers and various patterns on the surface of the mold. With the advancement of technology, the modeling of modeling machines, plating, computer -aided design and other equipment and processes now generally use equipment and processes to replace manual, and the efficiency and accuracy have greatly improved.
Because the surface of the coin is the relief mirror effect, each part of the work mode surface pattern is recessed, that is, the "yin model". In order to facilitate understanding, this example shows that a piece of aluminum foil is covered on a coin, repeatedly scraped it with rubbing, and then removed the aluminum foil. The pattern on the coin surface is protruding. In the same way, if the pattern on the surface of the coin is recessed, the surface pattern of the working mold is correspondingly protruding.
(2) The pattern from the plane to the three -dimensional modeling process
The design work of the pattern starts on the artist's plane drawing, and the plane pattern becomes the exquisite and realistic three -dimensional relief on the coin. : (1) The sculptor uses the oil and soil to show the plane patterns on the drawing through three -dimensional three -dimensional, and then turn it into a gypsum mold or resin mold; The protruding copper mold, also known as copper type or mother mold; (3) The three -dimensional pattern on the mother model is duplicated by the synchronous movement of the carved machine and the synchronization of the carving knife. On the mold blanks, this forms the original mold, also known as the sub -mold, and the surface of the relief effect is exactly the same as the actual coin; Repeat pressure to form work molds with concave and mirror effects under the pattern, and then use the work mold to quench and improve the hardness to prepare for pressure printing.
The original model can be used repeatedly, stamping and flipping into many workmodes with exactly the same patterns. This is why some patterns that remain unchanged can be produced and uninterrupted throughout the year. It should be said that the new modeling process is not only more standardized, but also has greatly improved efficiency. It allows the original skilled sculptor to take a whole day to complete the work within a few hours.
This coin
The previous work mode may only be printed with hundreds of coins, and the current workmoder can print millions of coins. Modern coin machines are an accurate and efficient equipment system. The pressure printing and automatic transmission are integrated. It continuously puts the blank cake to the pressure printing position at a very fast speed. As many as hundreds of coins burst out.
In early people's coining methods by manual hammering, metal cushioning technology was adopted. This technology is still used, that is, a round hole with the same diameter of the coin on the metal plate, putting the billet cake putting the billet cake Enter the holes to prevent the blank cake from deforming due to pressure during stamping. The coins with the tooth side are required to be designed to be designed to teeth in the inside of the metal pad. When the machine is stamped, the tooth shape and positive back pattern around the billet cake are printed out at the same time to become a coin with the tooth side. The engraved workmodels and divided metal cushions are divided, and then the text is printed on the text.
My modern coin compressor to fully apply mechanical mechanical principles to practice. The common stamping machine is to use the "crank power" to drive the stamping head to move up and down (like the joints of the finger bending and straight) to complete the pressure. It takes hundreds of tons of pressure to use the original model to make a workmade by hundreds of tons. Although the tonnage of the coin is smaller, it also requires considerable pressure. It takes 150 tons / square -inch pressure, and coins of other materials are basically within this range.
It is to printed in circulating coins through the above mechanical processes.
Coin production process
n00:00 / 01: 3570% shortcut keys to describe space: Play / pause ESC: Exit full screen ↑: increase volume 10% ↓: decreases by 10% →: Single fast forward 5 seconds studio Here you can drag no longer appear in the player settings to reopen the small window shortcut key description
Simply put, it is die casting