There are many classification methods for steel pipes. From the perspective of processing and manufacturing, it can be divided into welded steel pipes and seamless steel pipes. This article takes the plan and dispatch problem in seamless steel pipe production as the research object. Because the production plan of seamless steel pipes is closely related to its production process, familiarity with its production process process can facilitate the accurate implementation of production plans and scheduling.
Seamless steel pipe production process is usually composed of heat deformation treatment and cold treatment. The thermal deformation treatment is that the billet continues to process the hair tube under high temperature conditions, and the equipment used includes a perforation machine, a connected casting machine and a tension reduction machine.
The cold treatment process is also called the refined process, which refers to the process of the processing of the gross pipes under the normal conditions. The process includes cooling, straight, cutting, and detecting.
There are many ways to process seamless steel pipes, which are divided into hot rolling, cold rolling, and cold pulse, but most customer orders require hot rolling technology. The hot -rolled process of seamless steel pipes is shown in Figure 1. In turn, it is cut (discount), heating furnace heating, solid tube perforation, tube wall rolling tube wall, hot rolling process, heating furnace heating again, refined refinement, refinement The rolling link is finally processed into seamless steel pipes.
