国产自偷自偷手机在线_在线播放国产不卡免费视频_国产成人自在自线视频_久久久网中文字幕 ,国产精品成人一二三区_日韩中文无码免费视频播放_97 ,久久精品免费网站网|亚洲男人在线无码视频|正在播放酒

News

News

Location: Home > News > News

What is pure copper?

Time:2016-06-02 18:49:47 Source:江西保太集團(tuán)-江西保太有色金屬集團(tuán)有限公司 View Rate:8698

Summary:
Pure copper is rose red metal, which is purple after the surface forms a copper oxide film. Therefore, industrial pure copper is often called copper or electrolytic copper. The density is 8-9 g/cm3 and the melting point is 1083 °C. Pure copper has good conductivity and is widely used in the manufacture of wires, cables, brushes, etc.; it has good thermal conductivity and is commonly used to manufacture magnetic instruments and instruments that require anti-magnetic interference, such as compasses, aviation instruments, etc.; plasticity is excellent, easy to heat Pressure and cold pressure processing, can be made into tubes, rods, wires, strips, strips, plates, foils and other copper. Pure copper products are available in both smelted and processed products.