Carbon steel elbow pipe, production process and technical requirements

Carbon steel elbow technical requirements

1. Since most of the carbon steel elbows are used for welding, in order to improve the welding quality, the ends are turned into grooves, leaving a certain angle, with a certain edge, this requirement is also relatively strict, how thick the edge is, The angle and deviation range are specified. Surface quality and mechanical properties are basically the same as those of pipes. For the convenience of welding, the steel grade of the pipe fitting and the pipe to be connected is the same.

2. That is, all carbon steel elbows must be surface-treated, and the iron oxide scale on the inner and outer surfaces is sprayed off by shot peening, and then painted with anti-corrosion paint. This is for export needs, and in China, it is also to facilitate transportation and prevent rust and oxidation. Work in this area must be done.

3. It is the requirement for packaging. For small pipes, such as exports, it is necessary to make wooden boxes, about 1 cubic meter. It is stipulated that the number of elbows in this box should not exceed one ton. The standard allows sets, that is, large sets are small, However, the total weight should generally not exceed 1 ton. For large y, it must be packaged in a single package, such as 24", it must be packaged in a single package.

Carbon steel elbow production process:

(1) The production efficiency of stamping processing is high and the operation is convenient and easy to realize mechanization and automation. This is because stamping relies on punching dies and stamping equipment to complete the processing. The number of strokes of ordinary presses can reach dozens of times per minute. Minutes can reach hundreds or even thousands of times, and each stamping stroke may get a stamped part.

(2) Stamping generally does not generate chips and debris, consumes less material, and does not require other heating equipment, so it is a material-saving and energy-saving processing method, and the cost of stamping parts is low.

(3) Stamping can process parts with a wide range of sizes and complex shapes, such as a stopwatch as small as a clock, as large as a car longitudinal beam cover, etc., plus the cold deformation hardening effect of the material during stamping. The strength and stiffness of stamping are high.