查询词典 copper

In order to improve the conductivity and abrasive resistance of copper-graphite composite brush,influence of carbon fiber content on the electrical wear behaviors of the copper-graphite brush were investigated under two conditions of electrifying and non-electrifying.

结果表明，在试验条件下，在合金接触线-黄铜粉末冶金滑块系统的电磨损过程中，Cu-Cr-Zr合金接触线的电磨损率随电流强度升高显著加强，由加载较小电流引起的磨损份额为0。

Complete quality control system to ensure that the "grid to help card" stainless steel microfilament,"to help grid card" copper clad aluminum magnesium alloy wire,"to help grid card" copper clad alloy wire three series of 28 specifications of each product has reached international industry standards, and win customers.

完整的质量控制体系，确保&帮格牌&不锈钢微丝、&帮格牌&铜包铝镁合金丝、&帮格牌&铜包合金丝三大系列二十八个规格的各个产品已达到国际行业标准，并赢得用户好评。

Tian Jia Zhuang Copper Crafts Tangxian After 20 years of unremitting exploration and practice, forming a set of strict production process: 1, models, 2, making molds, 3, casting wax, 4, repair wax pattern, 5, combination, 6, lost-wax, 7, roasting, 8, casting, 9, sand, 10, Xiu Copper.

唐县田家庄铜铸工艺品历经20年不懈探索实践，形成了一套严格制作程序：1、模型，2、做模具，3、铸蜡，4、修蜡型，5、组合，6、失蜡，7、焙烧，8、铸造，9、清砂，10、修铜。

This article introduces some practical problems met in producing high-purity cathode copper , analyzes the reason of cathode copper surface particle formation by particle classification, and puts forward treatment measures and preventive measures to be taken.

介绍了高纯阴极铜生产中易遇到的实际问题，并把电铜表面粒子分成几种类型分析了其粒子形成的原因，提出了处理及应采取的预防措施。

In this paper, cuprous chloride was prepared by sulfite-reduction method with copper sulphate,which was obtained from copper-containing plating wastewater treatment.

研究了利用处理含铜电镀废水得到的硫酸铜，采用亚硫酸盐还原法制备氯化亚铜。

The mechanical strength, gluing performance and decay-resistance of 4-year-old bamboo wood treated with chitosan copper/zinc complexes, CCB (copper, chromium, boron composites), ACQ and zinc chloride were reported in this paper.

以4年生新伐毛竹为试材，以褐腐菌棉腐卧孔菌为试菌，对壳聚糖铜配合物、壳聚糖锌配合物及相应的金属盐和铜铬硼、ACQ处理材的耐腐性能、力学性能及胶接性能进行研究。

ABS plastic plating factory mainly electroplating process can be the following colors: copper, nickel, chromium, bronze, green ancient, ancient red, copper, ancient nickel, gold, silver, pearl nickel, pearl chrome, pearl silver, imitation gold , ancient silver, black nickel, gun between color and various colors.

本厂以塑胶ABS电镀为主，可以电镀加工以下颜色：铜、镍、铬、青铜、青古、红古、红铜、古镍、金、银、珍珠镍、珍珠铬、珍珠银、仿金、古银、黑镍、枪色及各种间色。

The company in Singapore, Germany, Japan and other countries of the plating process technology, with professional technical staff to provide you with electroless nickel plating, electroplating, silver, copper, zinc, chromium, copper alloys, and Sn-Zn ternary alloy trivalent chromium oxide such as surface treatment services.

本公司采用新加坡，德国，日本等国家的电镀工艺技术，配备专业的技术人员，为您提供化学镀镍，电镀银，铜，锌，铬，铜锡锌三元合金以及铝合金三价铬氧化等表面处理服务。

Chemical raw materials: include a variety of plating materials and metal surface treatment agent: sodium such as tin, stannous chloride, pyrophosphate Asian tin, copper sulfate, nickel acetate, copper acetate, nickel fluoride, cobalt sulphate, acetic acid cobalt, hydrofluoric acid, anion exchange resin, cation exchange resin, scale inhibitors, cleaning agents, detergents,the phosphating agent, plate washer water, with the exception of Prince agents, rust removal agent, the American Iron and Steel room temperature blackening agent, on behalf of behalf of the black-white (open cylinder agents, supplements), and alloys such as gun color..

二。化工原料：包括各种电镀原料及金属表面处理剂：如锡酸钠、氯化亚锡、焦磷酸亚锡、硫酸铜、醋酸镍、醋酸铜、氟化镍、硫酸钴、醋酸钴、氢氟酸、阴离子交换树脂、阳离子交换树脂、阻垢剂、清灰剂、除垢剂、创辉的磷化剂、洗板水、除腊剂、除油除锈剂、美国的钢铁常温发黑剂、代白代黑、枪色黑合金等。

Water lines are usually cast iron or ductile iron with copper water service lines; gas lines are made of steel; electric conduit is often galvanized pipe; and copper rods are used for electrical grounding.

水管线常用铸铁管或球墨铸铁管以及铜的进户供水管；天然气用钢管；电缆导管常是镀锌管；而铜棒用于电接地。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。