The so-called "Welding Rods expired" does not refer to the storage time exceeds a certain time limit, but rather refers to the quality of different levels of change (deterioration). Various types of electrodes longer storage time, and sometimes in the white crystalline (scared) This is usually caused by the water glass electrode surface, the crystallization is not harmful, it means that the electrode storage time is very long and wet performance.
1, should be stored for many years the electrode process test electrode according to the specified temperature for drying. Welding Rods did not find abnormal changes in the electrode process performance, such as drug leather successful block off phenomenon, as well as pores, cracks and other defects, the electrodes mechanical properties are generally guaranteed.
2, the electrode due to damp welding core minor rust, and basically does not affect performance, but if the high quality of welding, it should not be used.
3, the electrode damp rust is severe, the discretion to downgrade to use or be used for general component soldering. The best national standards to test the mechanical properties, and then determine the scope of its application.
4, if the welding paint contains a large number of iron and hydrogen content in the high relative humidity and longer storage time, electrode damp serious, even paint, corrosion, electrode drying, welding, continues to generate pores or spread high, and thus have to be scrapped. Required to improve the packaging to prevent electrode to absorb moisture in storage must be properly kept.
5, the electrodes of various types of serious deterioration, drug skin has been seriously off phenomenon, this batch of welding rod should be scrapped.
Shandong Province Xiajin Divine alloy electrode plant was founded in 1998, the major production of a nodular cast iron electrode. With product advantages in 2002 and developed a bi-metallic ductile iron plate. Products in the iron and steel enterprises, mold manufacturers, cement plants, power plants, mining companies, petrochemical, machinery manufacturing, coal, building materials, military, railways have been widely used. Effective to solve the problem of wear and tear of machinery and equipment.
Rely on advanced equipment, mature material formulations and the surfacing of new technology in the development of wear-resistant materials, production and sales, to undertake a variety of welding repair business and welding technology consulting services. Advanced technology as a fundamental innovation for the purpose, to guide the customer demand, continuously explore the field of wear-resistant materials, to provide users with reliable products and considerate service.
The company attaches importance to high-tech product development, and constantly develop new products, improve product quality. In recent years, the steady development of the products are sold throughout the country, market share is improving, the company by virtue of their strong corporate strength, first-class product quality, reasonable price. Meticulous, thoughtful, timely service, has won wide acclaim from customers.