Detailed Process Flow of Steel Clad Steel Insulation Pipe Production
The consumption processing technology of general steel-clad steel-insulated pipes can be divided into cold drawing and hot rolling. The consumption steps for cold rolled steel-clad steel steam-insulated pipes are generally more complicated than hot rolled. The precision rolled pipe must first stop the three-roll continuous rolling, followed by die testing after extrusion shaping. If surface initial treatment fails and cracks occur, the round steel tube must then undergo laser cutting with a cutting machine, resulting in a blank material of about one meter in length.
Detailed Production Process Explanation of Steel Clad Steel Insulated Pipes
Subsequently, the quenching process follows, where the acid pickling passivation is terminated with an acidic or alkaline liquid. During the acid pickling passivation, attention must be paid to whether the surface is causing many bubbles. If many bubbles are present, it indicates that the quality of the steel pipes does not meet the relative standards. In terms of appearance, cold-rolled steel clad steel保温管 is shorter than hot-rolled steel clad steel保温管. The thickness of the cold-rolled steel clad steel保温管 is generally thinner than that of the hot-rolled steel clad steel保温管, yet it appears brighter on the surface, with fewer rough spots, and the specifications have minimal burrs.
The supply situation for hot-rolled steel clad steel insulated pipes typically ends after the hot-rolled process and heat treatment. After quality inspection, the pipes undergo a rigorous manual selection process by workers. Following quality inspection, the surface oiling is terminated, followed by frequent cold drawing tests. After hot-rolling, the pipe must undergo a hole-piercing test, and if the diameter of the hole expansion is too large, the straightening correction must be terminated.
After straightening at school, the transmission is installed and transmitted to the flaw detector to terminate the flaw detection test. After final labeling and terminating the specification model editing, it is placed in the warehouse. Hot-rolled steel clad steel insulated pipes generally have a diameter exceeding 32mm, with wall thickness ranging from 2.5 to 200mm. Cold-rolled steel clad steel insulated pipes can have a diameter of up to 6mm, with a thickness of up to 0.25mm. Thick-walled pipes can have a diameter of up to 5mm with a wall thickness below 0.25mm. Cold-rolled specifications offer higher precision than hot-rolled.
How to differentiate the materials of steel-encased steel straight-buried thermal insulation pipes?
Steel Definition: Steel is a material produced through the processing of cast steel, billets, or steel under working pressure, resulting in a wide variety of appearances, specifications, and properties as required. Steel is a crucial material supply indispensable for the creation and implementation of the country's four modernizations, with extensive application and diverse types. According to the different cross-sectional appearances, steel is generally categorized into four major categories: aluminum profiles, plates, pipes, and metal products, to facilitate the consumption, ordering, and management of steel.
We offer a variety of products including heavy rail, light rail stations, large and medium-sized steel beams, small and medium-sized steel beams, high-quality steel beams, cables, medium-carbon steel plates, cold-rolled steel plates, ferrite cores for welders, hot-rolled strips, seamless steel pipes, welded steel pipes, and metal manufacturing types. Most steel consumption methods involve the production and processing of steel, which is subject to pressure processing, causing plastic deformation in the processed steel (slabs, ingots, etc.).
How to differentiate the materials of steel-clad steel straight-bury thermal insulation pipes?
Steel production and processing are divided into two categories based on temperature: cold drawing and heat treatment. Key production methods for steel include: Cold rolling: This involves passing the steel metal billet through the gaps of a pair of rotating hot-rolled steel strips (various designs), causing the material cross-section to reduce and length to increase due to the tension from the hot-rolled steel strips. It is a common consumption method for steel, primarily used for steel profiles, plates, and pipes. It is further divided into cold rolling and hot rolling.
Forged Steel: A production process that utilizes the reciprocating impact force of a forging hammer or the working pressure of a press to modify the blank into the desired appearance and specifications. Generally divided into free forging and open-die forging, commonly used for large cross-sectional steel materials such as heavy sections and billets. Drawing Steel: A method that involves pulling previously cold-rolled metal blanks (shapes, tubes, products, etc.) through die holes to reduce cross-section and increase length, typically referred to as cold drawing.
