The importance of copper in powder metallurgy
发表时间：2016-1-14 14:51:22 浏览次数：1781
Like iron and iron for growth, pre mixed powder expected increase of 5%. Copper enhanced iron carbon alloy material, can improve the density, strength, fatigue resistance and mechanical properties. The Engstrom NorthAmericaHoganas discussed in several iron base powder metallurgy parts how to add a certain amount of copper powder to improve its properties and microstructure.
The copper have rarely been developed in thermal equipment and application of high electrical and thermal conductivity of powder metallurgy parts. Potential applications include electrical contact elements, circuit breakers, electric components (e.g., slip ring, commutator and rotor bar). A heat sink and a heat exchanger, which has been used in the field of electrical components, will be extended to the electronic cooling system. For thermal and electrical components of the copper products will reach 15% ~ 20%.
Copper powder with iron powder mixtures and infiltration agent increased with increasing, annual copper consumption to about 25 percent, tin and copper powder for self-lubricating bearings for lock parts and textile pieces of brass, bronze alloy powder all over the world to consumption accounts for 50% ~ 60%.
Elbow and other parts of the production pipeline industry have been developing quite mature. The manufacturing economy problems such parts should be reviewed again by pure copper powder.
Because of the beautiful color of the copper powder and on the atmospheric corrosion of excellent performance, copper is widely used in decoration, such as furniture, building outer wall and roofing materials. The application of copper powder metallurgy in this field should also be considered. Now, the copper and copper alloy powder made of relatively high pressure and relatively large parts can already be used in this field.
Many forging and casting of copper and copper alloys require machining. Lead is often added to such products to enhance the cutting performance of copper. Treatment of lead alloy bearing parts is becoming a problem, and many countries are applying pressure to reduce the content of lead. Powder metallurgy parts require little or no machining. Therefore, the inherent manufacturing process, to replace many lead malleable to create conditions. These parts will fuse frame, welding electrodes, valves, fasteners and transmission parts involved.
The copper future is bright. Traditional applications, such as: self lubricating bearings, pre mixed powder, melt infiltration agent, brass and bronze alloy, and friction materials, continue to play an important role is the main areas of consumption of copper powders. Application of copper powder in thermal and electrical field will continue to grow, it will expand the use of copper. Most of the powder metallurgy process is feasible in the production of high density and high heat conductivity parts. The new powder metallurgy technology needs to be perceived and developed by people.
Using powder metallurgy process and high speed cutting powder metallurgy alloy production trim parts and components need to be developed, only made of copper parts can meet the characteristics.
