First, safety precautions1. It is strictly forbidden to stand under the primary straight-through valve of the steam boiler pipeline drain. 2. There is no one within 1 meter in the diameter of the outlet of the drainpipe at each drain point. 3. There is no one within 50 meters of the outlet direction

Introduction of the high-frequency welding process of submerged arc steel pipe:1. Control of weld gap: After rolling by multiple rollers, the strip is sent to the welded pipe unit. The strip steel is gradually rolled up to form a circular tube blank with an opening gap, and the reduced amount of the

The wall thickness of the spiral seam submerged arc welded steel pipe is uniform and looks good, and the force is uniform and durable. A phenomenon that is easy to occur in the process of steel pipe rolling and adjustment, the uneven wall thickness of steel pipes is mainly reflected in the appearanc

Oil casing is a high-end product produced by steel pipes. There are many varieties of the casing, and there are many types and requirements of casing pipe end buttons. The button types that can be processed include STC, LC, BC, VAM, and other button types. The production and installation process of

Many things have never been seen in the materials produced by construction projects, and they must be studied and studied. Here are some points that should be paid attention to in the purchase of straight seam steel pipes.1. Purchasing needs to know the types of steel pipes:a. According to the type:

Galvanized steel pipe, commonly known as cold galvanized pipe, adopts an electroplating process, only the outer wall of the steel pipe is galvanized, and the inner wall of the steel pipe is not galvanized. The hot-dip galvanized steel pipe adopts the hot-dip galvanizing process, and the inner and ou

Duplex stainless steel pipe fittings combine the performance characteristics of 304 and austenitic stainless steel pipe fittings. This paper compares the duplex stainless steel pipe fittings with the stainless steel pipe fittings with 304 and 316L as the main material, and draws the following differ

Regarding improving the stability of the spiral welded submerged arc welded steel pipe, the main issue is the storage of the spiral welded submerged arc welded steel pipe. When many customers consult with us, they often say that our spiral welded submerged arc welded steel pipe is placed in the Wher

Seamless Steel Elbow: Steel Elbow is a type of pipe fitting used in pipe bends. Among all the pipe fittings used in the piping system, the proportion is about 80%. Usually, different forming processes are selected for steel elbows of different materials or wall thicknesses. Commonly used seamless st

The welding seam of the spiral steel pipe is longer than that of the straight seam steel pipe. If the pipe length is L, the welding seam length is L/cos(θ). The vast majority of steel pipe defects are concentrated in the weld and heat-affected zone. The long weld means that the probability of defect