Preparation technology of stainless steel coil pipes

Abstract

A preparation technology of stainless steel coil pipes includes the pipe preparation process, wherein online continuous pipe production and preparation is conducted on pipe blanks with steel blanks as the raw material, so thin pipes are prepared; the pipe bending process, the prepared thin pipes are sent to a pipe bending machine to be bent, so bent pipes are prepared; the cutting process, wherein after size setting is conducted on the bent pipes, residual materials of pipe ends are cut off, so the stainless steel coil pipes are prepared. After the pipe preparation step and before the pipe bending step, a hard ball input process is included, wherein a rubber plug is inserted in one end of each thin pipe so that an opening can be sealed, small hard balls are filled into the other end of the thin pipe, and after the thin pipe is filled with the hard balls and the hard balls are compacted, the opening of the thin pipe is sealed. The inside-pipe sections of the bent portions of the stainless steel coil pipes prepared through the technology do not deform, the inside-pipe section areas are consistent and uniform, water flow and gas flow are uniform during industrial application, no bubbles are produced, pipe walls are thin, and the cooling effect is good.

Description

technical field [0001] The invention relates to a preparation process of a stainless steel pipe, in particular to a preparation process of a stainless steel coil. Background technique [0002] Stainless steel coil is a kind of coil or mosquito-repellent coil, which is widely used in chemical industry, machinery, electronics, electric power, textile, rubber, food, medical equipment, aviation, aerospace, communication, petroleum and other industrial fields. At present, when making stainless steel coiled tubes, the thin tubes obtained after the tube-making process are usually sent directly to the pipe bender for bending. When the pipe bender bends the thin tubes, the bending part is deformed and will become Flat shape, resulting in different cross-sectional areas of the coil tube, which will make the water flow and air flow uneven during industrial use, and bubbles will be generated when the water flow cools down, which will affect the use. Contents of the invention [0003]...

AI Technical Summary

Problems solved by technology

At present, when making stainless steel coiled tubes, the thin tubes obtained after the tube-making process are usually sent directly to the pipe bender for bending. When the pipe bender bends the thin tubes, the bending part is deformed and will become Flat shape, resulting in different cross-sectional areas of the coil tube, which will make the water flow and air flow uneven during industrial use, and bubbles will be generated when the water flow cools down, which will affect the use