二輥斜軋穿孔機(jī)的設(shè)計(jì)與調(diào)整

Design and Adjustment of 2-roll Rotary Piercing Mill

摘要: 分析探討了二輥斜軋穿孔機(jī)穿孔軋制的變形特點(diǎn)，在達(dá)到設(shè)計(jì)毛管規(guī)格的基礎(chǔ)上，分析了確保穿孔質(zhì)量的減徑量最小和自由變形區(qū)長度最小的兩個原則，并據(jù)此提出穿孔設(shè)計(jì)調(diào)整的理論和計(jì)算方法。分析認(rèn)為：采用全新的三段式入口錐穿孔輥輥型設(shè)計(jì)理念可以優(yōu)化傳統(tǒng)的輥型，推動穿孔工藝由經(jīng)驗(yàn)向理論、定性向定量方向發(fā)展。

Abstract: Analyzed and discussed in the essay are the deformation characteristics of the rolling process of the 2-roll rotary piercing mill. Given that the designed specification of the shell is satisfied，the two principles of having minimum reduction amount and minimum free deformation zone length to ensure piercing quality are analyzed. Accordingly，the theory and calculation method for adjustment of piercing design and adjustment. The analysis leads to such a conclusion that the conventional piercer roll profile can be optimized by means of adopting the completely-new design concept of the piercing roll profile with the 3-section inlet cone，which will get the piercing process further developed in a theoretic and quantitative way instead of the original experiencing and qualitative way.