1. Material Factors
Materials refer to the metallic materials used to manufacture the structure and the materials consumed by welding. The former is called base metal or base metal, that is, the metal to be welded; the latter is called welding material, including welding wire, flux, shielding gas, etc. Among them, the chemical composition (including the distribution and content of impurities) is the main influencing factor. In welded structures, the vast majority of commonly used metal materials are steel. Carbon has the greatest effect on the weldability of steel. The higher the carbon content, the worse the weldability.
2. Design Factors
Design factors refer to the safety of welded structures in use. Not only is it affected by the material, but also to a large extent by the structural form.
3. Process factors
Process factors include welding method (such as arc welding, submerged arc welding, gas shielded welding, etc.), welding process (including welding specification parameters, welding materials, preheating, assembly welding sequence) and post-weld heat treatment.
4. Usage Factors
The use factors refer to the working temperature, load conditions and working environment of the welded structure (chemical area, coastal areas and corrosive media, etc.). Generally speaking, the lower the ambient temperature, the more prone to brittle failure of the steel structure.
Zhejiang Cheng hong machinery co., LTD is a professional engaged in PE, HDPE, PPR thermoplastic piping engineering machinery manufacturers, with advanced technology, practical function, the product through the CE certification, by country, customers at home and abroad.Within the scope of zhejiang province is the largest of the welding.
Specializing in the production of supply Hydraulic welding machines, semi-automatic docking hot melt welding machine (hydraulic semi-automatic and manual), large diameter plastic pipe socket welding machine, PPR hot melt. The products are sold well all over the country more than 30 provinces, autonomous regions, and exported to the Middle East, eastern Europe, southeast Asia, central Asia and other African countries.
The company always adheres to the goal of survival by quality, management of price market, facing new and old customers, and serving the public. Leading technology, honesty and trustworthiness, quality improvement, customer first, let the most advanced equipment, provide the best service, create better economic benefits for customers as the goal, and work with new and old customers to create brilliant! In 2011, based on the principles of honesty, goodness, mutual benefit, survival with quality stars, credit policy for development, market prices, management goals, and the needs of new and old customers, the products are exported all over the world.
