Recently, finite liability company tries machine of forge of Qinghai Kangtai casting crowded be born avoid the first length of world is not had seam seamless steel tube, length is 13.5 meters, this is caliber of our country the eve of the lunar New Year is not had seam seamless steel tube to produce another heavy the eve of the lunar New Year of the category is broken through. Be in early the current year in June, this company 680MN squashs / project of die forging press obtains heavy the eve of the lunar New Year to break through, 68 thousand tons muti_function trial run of forging press project is successful, crowded gave the first 12.5 meters long, diameter 630 millimeter, wall is large the extruding seamless steel tube of 110 millimeter, labelling project heat helping somebody attain his aim debugs a success. Recently, this company squeezes a diameter successfully again with steel ingot of 20 tons of P91 630 millimeter, the wall is large 110 millimeter, length is 13500 millimeter (13.5 meters) , principal with Yu Chao critical, exceed the train in excess specified length of tall alloy P91 that exceeds critical fire report and nuclear report to use to not have seam vertical extruding steel tube, its length and weight are in the world is not belonged to in the vertical extruding steel tube below surprise line of action the first, fill international is blank. According to comprehending, 68 thousand tons muti_function project of unit of die forging press is the world in ability of the extruding on now world the first. In press installation and company of aircraft of forge of casting of the Kangtai in debugging a process and project design Fang Qinghua the eve of the lunar New Year learns and other outside appoint cooperation cooperates unitly craft, equipment, installation was occupied by force below cooperation, debug wait for difficult problem of a lot of craft. Explore in extruding craft especially research respect, rely on domestic craft force completely endeavor, development eliminates scale chance successfully, resolved steel ingot general situation, inside problem of Kong Chu scale, before solving crowded canal at the same time outside circle and inside the lubricant problem of aperture, mat of development success glass produces line, trial-produce gives vitreous cushion, returned development to succeed the mould is lubricant assemble etc, obtained craft of a series of heavy the eve of the lunar New Year to break through in every respect, created multinomial world the first. The first length of world is born without what seam seamless steel tube, will be quickly popularly close a group of things with common features equipment manufacturing industry, raise basic form a complete set with basic technology degree, the craft outside ashing a state and production are dual forestall, child of implementation high end is homebred change, have main sense.
