淺談凈料生產(chǎn)時(shí)鋼帶板邊形狀對(duì)成焊質(zhì)量的影響

Steel Strip Edge Profile VS Formation Welding Quality during SAW Spiral Welded Pipe Manufacturing with Split Strip

摘要: 在生產(chǎn)螺旋埋弧焊接鋼管過(guò)程中,所用凈料由于在縱剪過(guò)程中受剪刃布置和設(shè)備狀況的影響形成正梯形、倒梯形及平行四邊形截面,使用這些不同截面形狀的凈料進(jìn)行螺旋成型、埋弧焊接將影響焊接鋼管的質(zhì)量。分析了各種凈料截面產(chǎn)生的機(jī)理及截面形成后在生產(chǎn)過(guò)程中影響螺旋成型及埋弧焊接質(zhì)量的因素。就如何控制板邊截面形狀及提高成焊質(zhì)量做了探討。

Abstract: During the process of manufacturing of the SAW spiral welded pipes, the split blank strip crosssection is always shaped as trapezoid, upside trapezoid or parallelogram due to the arrangement of the shearer blade and the conditions of the equipment during splitting. With so section-shaped split strip, the quality of both spiral-formation and SAW processes are negatively influenced. Discussed here in the paper are the mechanism concerning shaping of the foresaid sections of the split strip and the elements resulting from the sections and responsible for the quality of the said two processes. Also discussed is the possible approach to control of the split strip edge section and improvement of the welding quality.