锡合金

The current density peak of brass welded line appeared at -0.012 V, and a porous corrosion film was formed. The electrode was passivated subsequently. The passivation film was made up of Cu2O, CuCl and ZnO. The passivation film dissolved with electrode potential, and displacement deposition took place between Cu and Zn. The copper redeposition on the electrode surface induced the increase of electrode activity and corrosion rate.

黄铜焊缝在电位-0.012V时出现电流峰，腐蚀产物膜多孔、疏松，随后电极进入钝化区，钝化膜由Cu2O、CuCl和ZnO组成；随电位升高，钝化膜溶解，发生铜锌置换反应，沉积的Cu导致活性电对的形成，增加了合金的腐蚀速度；当电位为+0.87V时，电极表面富集了针状锡和锡的氧化物。

Major produce High Efficient Environment Protection bright nickel、semi-bright nickel、black nickel、copper、pearl chromium、bright chromium、hard chromium、bright tin、brushed tin、Zinc-plating (blue、white、colour、black)、silver plating、oxide coatings of aluminium and its alloys、oxidation of magnesium alloy、electroless nickel plating、pickling passivation、archaistic colouring、phosphate coated.

主要生产承揽高效环保光亮镍、半光亮镍、黑镍、镀铜、珍珠铬、亮铬、硬铬、光亮锡、亚光锡、镀锌、镀银、铝及铝合金的氧化、镁合金的氧化、化学镀镍、酸洗钝化、仿古着色和磷化处理。

A silvery malleable metallic element that resists corrosion; used in many alloys and to coat other metals to prevent corrosion; obtained chiefly from cassiterite where it occurs as tin oxide .

一种银色金属元素，可延展、抗腐蚀，用于许多合金中，亦用于包裹其他金属以防其腐蚀，主要取自锡石中的锡氧化物。

25 Kinds of the weldable Tin and Tin-base alloys electroplating processes in the nearest 10 years in China were rewiewed systematically and completely.

系统而又比较全面地总结了我国近10年来电镀可焊性锡及锡基合金工艺25种，并指出了每种工艺的镀液性能和镀层质量的优劣，最后提出了可焊性电镀的发展趋势。

Some ores of copper are oxides and carbonates, and they

原。青铜：铜和锡的合金，可能是在铜和锡混合的地方

The electrochemical behavior of three kinds of Schiff base brighteners (DL01, DL02, DL03) and CoSO4 in sulfate laths for electroplating of bright tin and tin-cobalt alloy coatings was investigated using linear potential sweep.

为了研究3种希夫碱光亮剂(DL01、DL02、DL03)及CoSO4在电镀时的电化学行为，采用线性电位扫描法测定了含新型添加剂的硫酸光亮镀锡、锡钴合金镀液的极化曲线。

Massive white point s outspreading along rolling direction on the surface of Sn-Fe alloy layer was discovered after removing tin coating of tinplates offered by some steel works.

脱去镀锡板的自由锡层后，在锡铁合金层的表面目视发现了大量沿轧制方向伸展的白点，并且合金层的耐蚀性随着白点数量与覆盖面积的增加而下降。

After employing many axle bush experts, we not only successively developed the entire automobile stop-pushing bush, which obtains the National New Products Certification and the complete independent intellectual property right, but also successively developed the materials by burning and the complete independent intellectual property right, but also successively developed the materials by burning and combining copper and lead powder, with quick precise electroplated nickel layer, three electroplated elements,and the electroplating technology of tin layer.

公司承诺&以人为本，求真务&的发展理念，不懈追求上规模，上档次，上质量，先后引进多名轴瓦业高级工程师，研制开发了享有自由知识产权的整体式汽车止推瓦，获国家新产品证书；成功开发了铜铅粉末烧结合金材料，并配以快速精密电镀镍栅层、铅锡铜电镀三元及闪锡层电镀等新科技，最近研制开发出具有国际领先的轴瓦&四元&电镀技术，形成数条铜基、铅基轴瓦生产线。

Scrap Metals: Copper, phosphor copper, brass, Nickel Silver, Bronze, mechanical copper, copper-nickel alloy plating, brass-plated white , motor copper, copper wire, copper scrap, environmental protection, tin, silver tin, air-conditioning aluminum (crumbs, the machinery aluminum, 304 # stainless steel, zinc alloy, playing Word lead, gold, silver, nickel scrap, scrap titanium, tungsten steel, precious metals, molybdenum wire, etc.

废金属：（紫铜、磷铜、黄铜、洋白铜、青铜、机械铜、镀白铜、镀白黄铜、马达铜、铜丝、铜屑、环保锡、含银锡、空调铝、机械铝、304#不锈钢、锌合金、打字铅、镀金、镀银、废镍、废钛、钨钢、钼丝贵重金属等） 2。

Chemical raw materials: The main raw materials include a variety of electroplating and metal surface treatment agent, such as acetic acid in the Czech Republic, nickel, copper acetate, nickel fluoride, cobalt sulfate, cobalt acetate, hydrofluoric acid, Yunnan tin sodium, Taiwan's Ya-tin pyrophosphate, oron the anion exchange resin, cation exchange resin, scale inhibitors, cleaning agents, detergents,the phosphating agent, plate washer water, with the exception of the Prince of water, oil derusting water, the United States steel at room temperature blackening agent, on behalf of behalf of the black-white (open cylinder agents, supplements), and alloys such as gun color.

六、化工原料：主要包括各种电镀原料及金属表面处理剂，如中捷的醋酸镍、醋酸铜、氟化镍、硫酸钴、醋酸钴、氢氟酸、云南的锡酸钠、台湾的焦磷酸亚锡、奥龙的阴离子交换树脂、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、除腊水、除油除锈水、美国的钢铁常温发黑剂、代白代黑、枪色黑合金等。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。