Mini-MPM連軋管機(jī)194 mm系列孔型開發(fā)

Development of 194 mm Series Passes for Mini-MPM

摘要: 在現(xiàn)有Mini-MPM連軋管機(jī)孔型參數(shù)的基礎(chǔ)上，按照頂部延伸系數(shù)分配法，開發(fā)出194 mm系列連軋管機(jī)孔型，同時(shí)重新設(shè)計(jì)穿孔機(jī)頂頭；統(tǒng)計(jì)194 mm系列孔型生產(chǎn)Φ139.7 mm×7.72 mm規(guī)格石油套管和Φ178 mm×9 mm規(guī)格車軸管的成材率和壁厚情況。分析認(rèn)為：設(shè)計(jì)的194 mm系列孔型是可行的；采用194 mm系列孔型軋制的兩個(gè)規(guī)格產(chǎn)品，其產(chǎn)品質(zhì)量穩(wěn)定，且成材率高。

Abstract: Based on the pass parameters of the existing Mini-MPM mandrel mill, the 194 mm series passes are developed according to the distribution method of top elongation coefficient, and in turn the piercer plug is re-designed.Statistics is conducted, covering the yield and wall thickness data of the Φ139.7 mm×7.72 mm oil casing and the Φ178 mm×9 mm axle pipe as produced with the 194 mm series passes.It is regarded via the analysis that the said 194 mm series passes are practicable, and production of the above mentioned pipes with the two sizes as rolled with the passes features consistent product quality and high yield.