The surface roughness of thick-wall seamless steel pipe is required in the specification, and the general regulation cannot have the disadvantages of application harm, such as stratification, scab, gap, etc. The tolerance standard of geometric shape error of thick-walled seamless steel pipe is also required in the specification, which generally includes bending degree, side width, side thickness, included Angle, weight calculation formula and other items, and requires that the thick-walled seamless steel pipe should not have obvious distortion
Thick wall seamless steel tube in the process of production, after a lot of process, can obtain high quality fitting, according to the clearance of seamless tube cold work hardening can obtain satisfactory aluminum components, its production technological process of industrial equipment for the bright heat treatment equipment, the key for the output of stainless steel plate under the maintenance to carry out heat treatment process. When the application characteristics of thick wall seamless steel pipe are not specified in addition to this, the demand for the composition of aluminum alloy profiles after heat treatment process is not the same, so the heat treatment process will be different.
After cold rolling, internal stress will hollow out in the raw material of thick wall seamless steel pipe, which is very bad for stress corrosion cracking of tap water pipe. Horizontal cold rolling can cause corrosion and cracking of raw materials. The high temperature long-term compressive strength of the stainless steel plate will also cause damage to the stainless steel plate. The higher the general operating temperature is, the lower the cold rolling level can be carried out.
From the above description, it can be seen that the heat treatment process of thick-wall seamless steel tube is more complex, and the aluminum alloy profiles can reach the standard. It is stipulated that the indoor space design of the adjustment of the refrigeration section of the heat treatment equipment is quite large. Therefore, at this stage, excellent bright heat treatment equipment generally selects strong convection refrigeration in its refrigeration section, and sets three refrigeration sections, which can adjust the exhaust air volume independently. Along the total width of the cold rolled coil is divided into three sections, according to the exhaust air volume promotion method to adjust the refrigeration rate of the total width of the cold rolled coil, control the type.
Thick wall seamless steel pipe of simple primary color, planer production and processing, thick wall seamless steel pipe raw materials through the whole process of top heat treatment method punishment, different specifications and models can be customized.
Post time: Feb-07-2022