(1) Raw materials are strip steel coils, welding wires, and fluxes. Before putting into use, they must go through strict physical and chemical tests.(2) The head-to-tail butt joint of strip steel adopts single-wire or double-wire submerged arc welding, and automatic submerged arc welding is used for
The variety of surface processing of stainless steel broadens its application field - different surface processing makes the surface of stainless steel different, making it unique in application. Surface finishing of stainless steel is important for many reasons in architectural applications.Corrosi
With the continuous development of my country's economy, the country vigorously develops the energy industry. Long-distance oil and gas pipelines are an important way of energy protection. During the anti-corrosion construction process of oil (gas) pipelines, the surface treatment of steel pipes is
Large-diameter steel pipes are also called large-diameter galvanized steel pipes, which refer to welded steel pipes with hot-dip or electro-galvanized layers on the surface of large-diameter steel pipes. Galvanizing can increase the corrosion resistance of steel pipes and prolong their service life.
1) The type, specification, and quality of stainless steel pipes, components, and welding materials must meet the design requirements and specifications.2) The positions of supports, hangers, and brackets should be correct, flat, and firm, and the backing plate in contact with the pipe should be mad
Choose to purchase stainless steel pipes 1. Identify whether the material "304" is stamped on the surface of the pipe, and ask for the quality certificate and quality assurance certificate of the stainless steel pipe manufacturer.Choose to purchase stainless steel tube 2. Test with the acid reagent.
The installation method of stainless steel pipes is the same as that of ordinary carbon steel, and some processes have the following process requirements.1 Stainless steel materials should not be in direct contact with other metals when being lifted and should be padded with non-metallic materials s
All metals react with oxygen in the atmosphere to form an oxide film on the surface. Unfortunately, the iron oxide that forms on plain carbon steel continues to oxidize, allowing the rust to grow and eventually form holes. Carbon steel surfaces can be secured with paint or with oxidation-resistant m
Welded steel pipes are mainly divided into three processes: electric resistance welding (ERW), spiral submerged arc welding (SSAW), and straight seam submerged arc welding (LSAW). The welded pipes produced by these three processes have their positioning and advantages in the application field due to
