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Marine Lee

Premium Author Marine Lee

Changsha, Hunan, China

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Seamless steel pipe production processes and several major roll tool materials, hardness selection described below:
Cold drawn precision seamless steel pipe is a high precision steel pipe material.
In China, there is no good performance for cold-drawn seamless pipe flux leakage testing equipment produced, once in use that need to be imported. Imported magnetic flux leakage testing equipment is e...
Welding pressure is one of the main parameters of the welding process. After the two edges of the tube are heated to the welding temperature, common metal grains are formed under the action of the pre...
In order to improve the quality of the welded pipe to improve its performance and process performance, in the production process of erw pipe, there is generally a corresponding post-weld heat treatmen...
In the production process of erw pipe, how to ensure product quality in line with the requirements of technical standards and customer needs, we must analyze the factors that affect the quality of ste...
General continuous annealing furnace can not be directly displayed in the heating temperature, but through the voltage parameters to control the temperature, so how to accurately control the temperatu...
The frequency control system is designed to always operate the transistor at the resonant frequency of the system. The resonant frequency is determined by measuring the frequency of the output current...
In the high-frequency welded pipe welding, through the contact and heating mode and the relationship between the joint seam state analysis, the use of adjusting the welding roller roll gap and the amo...
Factors affecting the quality of raw materials are mainly mechanical properties of steel instability, strip surface defects and geometric size deviation of three aspects, therefore, should be from the...
Stainless steel seamless pipe enterprises to deep processing, to choose a good direction, to select high-tech products, to carry out fine management, select the appropriate ownership model, strengthen...
304 stainless steel plate surface appearance and the use of a variety of possibilities, corrosion resistance, better than ordinary steel durable, 304 stainless steel plate corrosion resistance is high...
There are many kinds of detection methods for non-destructive testing, for the surface defects are eddy current, magnetic flux leakage, magnetic powder, penetration and visual, etc., you can use ultra...
When the seamless steel pipe products meet the technical standards or customer requirements to the finished product tube to sell, and to ensure that customers seamless steel pipe quality and performan...
In a relatively short period of time so that steel pipe thickening, can produce non-standard, special type of seamless pipe, and low cost, high production efficiency, is the current international roll...








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