What is the framing procedure of straight crease welded steel pipe? Straight crease welded steel pipe is a steel pipe made by hot-rolled or cold-moved steel plate or steel strip. The pipe gotten by straight crease welding on the welding gear is called straight crease welded pipe. Straight crease welded steel pipe (YB242-63) is welded with steel factory. Steel funnels with longitudinally parallel steel channels. Typically separated into metric electric welded steel pipe, winding welded steel pipe,welded slight walled pipe, transformer cooling oil pipe, etc. In the accompanying article, I will quickly acquaint you with the welding steel pipe shaping procedure.
Straight crease steel pipe welding process
Straight crease steel pipe welding procedure can be partitioned into electric opposition welded straight crease steel pipe and submerged bend welded straight crease steel pipe, wherein electric obstruction welded straight crease steel pipe is additionally isolated into high recurrence welded straight crease steel pipe, medium recurrence welded straight crease steel pipe, low recurrence welded straight crease steel pipe, The submerged circular segment welded straight crease steel pipe is likewise called twofold sided submerged curve welded straight crease steel pipe or LSAW straight crease steel pipe, and the LSAW is (truncated as LSAW for Longitudinally Submerged Arc Welding). Opposition welding straight crease steel pipe is additionally called ERW straight crease steel pipe.
The ERW (Electric Resistance Weldin) is shortened as ERW. High-recurrence welded straight crease steel pipe is likewise called ERW straight crease steel pipe. ERW is a general term for electric opposition welded steel funnels. The electric obstruction welding (ERW) ERW is the main letter relating to English words. Obstruction welded steel channels are separated into two kinds: AC welded steel pipe and DC welded steel pipe. Air conditioning welding is separated into low recurrence welding, medium recurrence welding, too halfway recurrence welding and high recurrence welding as per the recurrence. High-recurrence welding is primarily utilized for the creation of slight walled steel funnels or customary divider thickness steel channels. High-recurrence welding is isolated into contact welding and acceptance welding. DC welding is commonly utilized for little distance across steel channels.
Be that as it may, regardless of which sort of straight crease steel pipe welding process, the primary advances are comparable, as demonstrated as follows:
Board examination: After the steel plate used to fabricate the huge distance across submerged bend welded straight crease steel pipe enters the creation line, the entire board ultrasonic review is first done;
Processing edge: twofold sided processing the two edges of the steel plate by the edge processing machine to accomplish the required plate width, parallelism of the edge and the state of the score;
Pre-twist: utilize the pre-bowing machine to pre-twist the edge of the board with the goal that the edge of the board has the required bend;
Trim: First, half of the pre-twisted steel plate is ventured and stepped on the JCO embellishment machine, squeezed into a “J” shape, and afterward the other portion of the steel plate is likewise bowed, squeezed into a “C” shape, lastly an opening is framed. “O” shape
Pre-welding: joints of straight crease welded steel pipes subsequent to shaping and consistent welding by gas protected welding (MAG);
Inward welding: welding by longitudinal multi-wire submerged bend welding (up to four wires) within a straight crease steel pipe, square bar steel;
Outer welding: welding by longitudinal multi-wire submerged circular segment welding outwardly of straight crease submerged curve welded steel pipe;
Ultrasonic assessment I: 100% investigation of the internal and external welds of straight crease welded steel funnels and the base metal on the two sides of the weld;
X-beam investigation I: 100% X-beam mechanical TV examination of inward and outer welds, utilizing picture handling framework to guarantee the affectability of blemish discovery; 10. Growing breadth: Expanding the full length of the submerged circular segment welded straight crease steel pipe to improve the dimensional precision of the steel pipe and improve the circulation of worry in the steel pipe; 11. Water driven test: On the water driven testing machine, the steel pipe after the distance across development is tried individually to guarantee that the steel pipe meets the test weight required by the standard. The machine has programmed recording and capacity functions;steel square bar producers
Chamfering: The steel pipe in the wake of passing the assessment will be handled at the pipe end to accomplish the required pipe end furrow size;
Ultrasonic examination II: Ultrasonic assessment is done over and over to check for imperfections that may happen subsequent to fixing and water weight of straight crease welded steel funnels;
X-beam review II: X-beam modern TV investigation and cylinder end weld taping of the steel pipe after the extension and hydrostatic test;
Cylinder end attractive molecule review: Perform this assessment to discover the cylinder end deformity; 16. Hostile to erosion and covering: The certified steel pipe is protected and covered by client necessities.