中国焊条制造商、供应商、工厂-批发服务集团雷竞技app官方版下载RAYBET雷竞技下载

电极是均匀和向心地应用金属上的涂层(膜)的核心。焊接核心是金属电极的核心。为了保证焊缝的质量和性能,有严格规定每个焊接中金属元素的内容核心,特别是有害杂质的含量(如硫、磷等),应严格限制和优于贱金属。焊条由焊芯和涂层。核心的类型是不同的。焊接核心的组成直接影响焊缝金属的成分和性能,所以焊接核心中的有害元素应该尽可能少。焊接核心焊接碳钢和低合金钢通常是低碳钢、锰、硅、铬、镍和添加其他组件(参见国家标准g1300焊丝- 77)。使用低碳的原因是,一方面,当碳含量很低,钢丝具有良好的可塑性和焊线很容易被吸引;另一方面,它可以减少减少天然气的CO含量,减少飞溅或孔隙度,并增加焊缝金属凝固时的温度,这有利于开销焊接。添加其他合金元素主要是为了确保焊缝的综合机械性能,以及焊接工艺性能和清除杂质。 For high alloy steel and other metal materials such as aluminum, copper and cast iron, the composition of the welding core shall be close to that of the metal to be welded, and the content of impurities shall also be controlled, and certain specific alloy elements shall be added according to the process requirements. Welding rod is a coated melting electrode for arc welding with welding rod, which is composed of coating and welding core. There is a chamfer of about 45 ° on the coating at the front end of the electrode, which is convenient for arc striking. There is a section of bare core at the tail, accounting for about 1/16 of the total length of the electrode, which is convenient for welding tongs to clamp and conductive. The diameter of the electrode actually refers to the diameter of the welding core), which is usually 2, 2.5, 3.2 or 3, 4, 5 or 6 mm. The most commonly used types are 3.2, 4 or 5, and the length "L" is generally between 200 and 550 mm.

应用程序

焊条广泛用于生产热锻、冷冲压模具、耐磨硬表面,具有高硬度和稳定性。用于生产的硬表面的热锻模,冲压模具,滚死,冲模,将死,热轧车轮,耐磨机器零件,工具机器零件修复,将死,热锻冷锻切口模焊接修复。联合高硬度钢,钢模具的固定座位,缓冲层底部的生产铸钢模具的坚硬的表面,和裂纹的焊接。焊接铸铁、合金铸铁、钢,铸铁,镍及其合金,或防水压铸件。生产、维修和表面重建的中型和大型热锻死亡。

应用程序

特点和优势

根据不同的情况下,焊接电极有三种分类方法:根据电极的目的分类,分类根据涂料的主要化学成分,根据渣的特点和分类后涂层融化。根据焊接棒的使用,有两种形式的表达式。一个是由原机械工业部,可分为结构钢焊接棒、耐热钢焊接棒、不锈钢焊接棒、堆焊棒,低温钢焊接棒、铸铁焊接棒、镍和镍合金焊接棒、铜和铜合金焊接棒、铝和铝合金焊接棒和专用焊接棒。第二个是国家标准,其中包括碳钢焊条、低合金焊条,不锈钢焊条,堆焊焊条,铸铁焊条、铜和铜合金电极、铝和铝合金电极。没有这两个原则区别。前者是由商业品牌,后者的模型。如果分类根据电极涂层的主要化学成分,可分为氧化钛电极焊接电极,钙氧化钛电极,电极钛铁矿、铁氧化物电极、电极、纤维素低氢电极、石墨电极和底电极。如果分类根据渣熔化后电极涂层的特点,可分为酸电极和电极碱性焊条。酸性焊条涂料的主要成分是酸性氧化物,如二氧化硅、二氧化钛,三氧化二铁,等碱性焊条涂料主要由碱性氧化物,如大理石、萤石等。电极的分类方法有很多,可以从不同的角度分类,如使用,熔渣的碱度,电极涂层的主要部件,电极的性能特征。 The current classification method of welding rods in China is mainly based on the national standard of welding rods and the Product Sample of Welding Materials prepared by the original Ministry of Machinery Industry. The electrode models are divided into 8 categories according to the national standards, and the electrode brands are divided into 10 categories according to the use.