2 thoughts on “How to prepare jewelry welding medicine?”
Sonja
Pay attention to the control of elements such as ZN, CD, CU, because they are the key to affecting the melting point of the welding medicine. The appropriate amount of Zn and CD in the welding medicine can reduce the melting point of welding medicine, enhance the liquidity of welding drugs and change the color of the weld. The CU in the welding medicine is mainly to ensure the plasticity of the welding medicine, which improves the brittleness generated after adding Zn and CD, and also has a certain effect on color modification. Because Zn, CD and other elements are prone to oxidation reflections, welding drugs should be performed in vacuum or protective atmosphere to maximize the mixing of oxides to the greatest extent and increase the purity of welding medicines. To understand the basic formula of common welding medicines: 990AG high -temperature welding: AG85 CU9 Zn6 990AG medium temperature welding: AG75 CU15 Zn10 990ag Low temperature: AG65 CU25 Zn10 N925AG high temperature Welding: AG66 CU25 Zn9 925AG Low -temperature welding: AG60 CU24 Zn16 18K Gold Medium Temperature Welding: AU75 AG2.8 CU12.2 Zn1.8 CD8.2 14K gold medium temperature medium temperature medium temperature medium temperature medium temperature medium temperature medium temperature medium temperature Welding: AU58.5 AG12 CU20 Zn4 CD5.5 18K Platinum medium temperature welding: AU75 CU12 NI12 Zn1 (CD1) 14K Platinum medium temperature: AU58.5 AG15 CU5.5 NI6 Zn15 (GD15)
Silver with a lower content can be used as silver welding, and low silver melting points are low. Can be used to welded silver jewelry. In some gold and silver shops, there are usually old silver jewelry acquired. The silver jewelry passed down from the older generation generally has a relatively low content! The gold welding medicine can add a little copper wire to the pure gold. Fast melting can be used to welded gold jewelry! I hope my answer can help you!
Pay attention to the control of elements such as ZN, CD, CU, because they are the key to affecting the melting point of the welding medicine. The appropriate amount of Zn and CD in the welding medicine can reduce the melting point of welding medicine, enhance the liquidity of welding drugs and change the color of the weld. The CU in the welding medicine is mainly to ensure the plasticity of the welding medicine, which improves the brittleness generated after adding Zn and CD, and also has a certain effect on color modification. Because Zn, CD and other elements are prone to oxidation reflections, welding drugs should be performed in vacuum or protective atmosphere to maximize the mixing of oxides to the greatest extent and increase the purity of welding medicines. To understand the basic formula of common welding medicines:
990AG high -temperature welding: AG85 CU9 Zn6
990AG medium temperature welding: AG75 CU15 Zn10
990ag Low temperature: AG65 CU25 Zn10 N925AG high temperature Welding: AG66 CU25 Zn9
925AG Low -temperature welding: AG60 CU24 Zn16
18K Gold Medium Temperature Welding: AU75 AG2.8 CU12.2 Zn1.8 CD8.2
14K gold medium temperature medium temperature medium temperature medium temperature medium temperature medium temperature medium temperature medium temperature Welding: AU58.5 AG12 CU20 Zn4 CD5.5
18K Platinum medium temperature welding: AU75 CU12 NI12 Zn1 (CD1)
14K Platinum medium temperature: AU58.5 AG15 CU5.5 NI6 Zn15 (GD15)
Silver with a lower content can be used as silver welding, and low silver melting points are low. Can be used to welded silver jewelry. In some gold and silver shops, there are usually old silver jewelry acquired. The silver jewelry passed down from the older generation generally has a relatively low content! The gold welding medicine can add a little copper wire to the pure gold. Fast melting can be used to welded gold jewelry! I hope my answer can help you!