高頻焊管熱張力減徑后的在線(xiàn)快速冷卻設(shè)備及其應(yīng)用

On-line Rapid Water-cooling System for Hot Stretch-reduced High-frequency Welded Pipe and Application

摘要: 分析了高頻焊管熱張力減徑后在線(xiàn)快速冷卻工藝的特點(diǎn)、設(shè)備結(jié)構(gòu)組成、工作原理等，研究了TG26材質(zhì)Φ139.7 mm×7.72 mm規(guī)格高頻焊管在線(xiàn)快冷后的力學(xué)性能和金相組織。經(jīng)檢驗(yàn)，高頻焊管熱張力減徑后在線(xiàn)冷卻控冷工藝使鋼管組織和性能得到提升，大幅降低后續(xù)離線(xiàn)熱處理等工藝的生產(chǎn)成本，提高生產(chǎn)效率。該冷卻設(shè)備的現(xiàn)場(chǎng)應(yīng)用效果良好。

Abstract: Analyzed in the article are the main aspects of the on-line rapid water-cooling system for the hot stretch-reduced hi-frequency welded pipe, including the process characteristics, the equipment configuration and the operating principle, etc.Also studied are the mechanical properties and the metallographic structure of the Φ139.7 mm×7.72 mm TG26 HF welded pipe as has been on-line rapidly water-cooled.Results from relevant inspection and testing of the pipe show that owing to the on-line cooling and cooling control process, the microstructure and the properties of the hot stretch-reduced HF welded pipe have been enhanced, and accordingly, operation costs of the follow-up off-line heat treatment of the pipe is tremendously reduced, and the production efficiency enhanced.Onthe-site application result shows that the said cooling system exhibits high operation effectiveness.