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What are the details of the diameter expansion technology and classification of straight seam steel pipes
From a welding process perspective, spiral welded pipes and straight seam steel pipes use the same welding methods. However, straight seam welded pipes inevitably have many T-shaped welds, significantly increasing the probability of welding defects. Furthermore, the residual stress at these T-sha...Read more -
How to Prevent Decarburization of Steel Pipes
Decarburization during the production of steel pipes will affect subsequent processes and reduce the pipe’s inherent performance and service life. Therefore, manufacturers typically take appropriate measures to avoid or resolve this problem. Generally, there are two ways to prevent decarbur...Read more -
What are the key considerations for the pretreatment and welding of plastic-coated steel pipes
First, what are the pretreatment procedures for plastic-coated steel pipes? Plastic-coated steel pipes typically refer to double-sided plastic coating, also known as internal and external plastic-coated steel pipes. For plastic-coated steel pipes, the initial rust removal technology plays a cruci...Read more -
What is the purpose of preheating spiral welded steel pipes before welding
Important components of alloy steel and thick parts must be preheated before welding spiral welded steel pipes. The purposes of preheating spiral welded steel pipes before welding are as follows: (1) Preheating the spiral welded steel pipe slows down the cooling rate after welding, allowing hydro...Read more -
What are the details of Q390D straight seam steel pipe processing
First, what are the raw material preparations for Q390D straight seam steel pipe processing? (a) Material selection requirements: The processing of Q390D straight seam steel pipes begins with strictly selecting steel plates or strips that meet Q390D standards. Q390D steel is a low-alloy high-stre...Read more -
How to Determine the Length, Cutting, and Selection Techniques of Cold-Drawn Steel Pipes
First, what is the significance of determining the length of cold-drawn steel pipes? In the field of precision machinery manufacturing, the processing quality of cold-drawn steel pipes directly determines the performance stability of the final product. An unreasonable length determination can eas...Read more