Pb-tee middle threaded metal joint (all copper plated nickel)

Copper nickel plating is nickel plating on a copper substrate.Nickel plating can be divided into electroplating nickel and electroless nickel plating.After the copper nickel plating can prevent the migration of copper atoms, if the direct chromium plating on the copper substrate, copper atoms will migrate the chromium coating, resulting in copper coating.Inactivity of nickel can protect copper from oxidation.After the plating work in the atmosphere and alkali solution chemical stability, not easy to change color, more than 600 degrees Celsius before oxidation.High hardness, easy to polish, the disadvantage is porous.In a lot of products (especially iron and steel), in the substrate to plating a layer of nickel, the purpose is not only to facilitate subsequent plating of other metals, there are relatively strong adhesion and wear resistance.

金属贯通软管的生产软管均由国家标准、EN规格、DIN规格、JIS规格等金属软管标准生产。采用金属穿透软管的主要材料：采用SUS304和SUS304、铜，从而保证软管优良的柔软性、耐腐蚀性、耐高温等性能，在实际使用过程中，软管材料的选择应当根据产品的性能选择相应的编号和结构。金属穿透软管可保护电缆或管道,避免电火花、热金属屑和化学污染的损害。独不锈钢接头定制特的制造技术确保了产品的稳定性和灵活性。不锈钢快插接头定制特殊的预制材料的使用可以屏蔽电磁波。金属穿透金属软管的两种基本类型：简单的啮合结构P3spuaritk型；双带扣结构P4interlock型的软管。(1)外观高级包的金属软管、外观变黑、光泽,表面无气泡杂质。中框的金属软管的外观为黑色，光泽不足。低级品和中级品的肉眼无法分辨（2）手感是高级的金属制软管，质硬，脚不光滑。中框的金属制软管子的手不能被挤压。行？等级的产品可以强力挤压手(3)重量可快速辨别包覆金属软管的质量,可以简单称重,相同米数的包塑性金属软管,可以测量重量，不仅可以比较质量，还可以判断美国的数量是否不足同一制造商。