According to the nature of copper alloy base polishing wastewater from Shenyang Mint and through the comparison of comprehensive analysis of treatment method for the similar wastewater, a technological process with neutralized method for treating acidic washing water and rinsing water was put forward; the wastewater after treating reached the standard of the national discharge.

Oxidation of copper and copper alloy wires and its prevention;

The variety,applications and their future development of copper alloys wires are described.

By introducing the basic situation of manufacturing the copper alloys rod and wires in the current stage, the way for polybasic copper alloys with the continuous casting and rolling process is proposed, ideas of precipitation strengthen copper alloys rod and wires can be soluted on-line was put forward, thus it is possible to supply the solution copper alloys rod and wires.