Performance And Use Of Copper Castings
In industrial production, a variety of equipment will be used for production and processing. Many equipment cannot run without accessories such as copper castings. These accessories are used to improve the overall performance of the equipment. Depending on the purpose of the device, the performance and application of the accessory also vary. For example, it and other accessories have the following properties and uses:
Ⅰ. The density of copper castings is less than that of cast iron and steel castings, but the specific strength is higher.
Ⅱ. The copper alloy has good surface gloss and good resistance to atmospheric and fresh water corrosion.
Ⅲ. Pure copper has good corrosion resistance in oxidizing acids such as nitric acid and acetic acid,
Ⅳ. Casting has good thermal conductivity.
Ⅴ. Castings have good casting performance.
Ⅵ. Due to the large latent heat of solidification, under the same weight, the solidification time of copper liquid is much longer than that of cast steel and cast iron, and the discharge fluidity is good.
Ⅰ. Copper alloy castings can reduce the structural weight under the same load, and are widely used in aviation, power machinery and transportation machinery manufacturing.
Ⅱ. Widely used in the manufacture of civilian utensils.
Ⅲ. Copper castings can be used in the chemical industry.
Ⅳ. Heat-exchanging devices used in chemical production and internal combustion engine cylinder heads, pistons and other power machinery parts with good thermal conductivity are also suitable for copper alloy manufacturing.
Ⅴ. Due to its low melting point, casting methods such as metal mold and pressure casting can be widely used to improve the intrinsic quality, dimensional accuracy, surface finish and production efficiency of castings.
Ⅵ. Used for casting thin-wall complex castings.
Copper castings have the advantages of high strength, high bearing capacity, good thermal conductivity, etc., and are widely used in machinery manufacturing. The production cost is low, and it has an auxiliary effect on mechanical operation.