Industrial News
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How to deal with the revers of spiral steel pipe
How to deal with the revers of spiral steel pipe Along a straight line or curve or flat portion of the curved portion of sheet metal bent into upstanding flange stamping method. Flanging type:According to the nature of the deformation, it can be divided into elongated cuffs and compression type f...Read more -
NDT Testing
NDT testing means without prejudice or affect the detected object performance, not hurt at being provided to detect objects within the organization, the use of material internal structural abnormalities or defects heat, sound, light, electricity, magnetism and other reactions caused by changes to...Read more -
Crack detection
Weld cracks in a pressure vessel are mostly belonging delayed cold cracking and the distribution is very broad. In the process of the pressure vessel manufacturing and field compound by special attention, but because of its “delay”, under the action of restraint stress, often in a yea...Read more -
Hot forging and cold forging
Hot forging means forging blank metal above the recrystallization temperature carried out. Features: reducing the deformation resistance of metals, thus reducing bad forging force needed to deform the material, so that greatly reduced the tonnage forging equipment; altering the structure of ingot...Read more -
Effect of steel composition on the zinc coating
When the meter steel workpieces, the selection of steel, usually the main consideration is: the mechanical properties (strength, toughness, etc.), processing performance and cost. But for galvanized parts, the composition of the selection of materials, the quality of the hot-dip galvanizing has g...Read more -
Common Arc Welding Process-Submerged Arc Welding
Submerged arc welding (SAW) is a common arc welding process. The first patent on the submerged-arc welding (SAW) process was taken out in 1935 and covered an electric arc beneath a bed of granulated flux. Originally developed and patented by Jones, Kennedy and Rothermund, the process requires a c...Read more