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starting roll temperature
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  开轧温度
     By carrying out refining raw material guideline, standardizing deoxidation technique, optimizing argon blowing process, selecting optimum water distribution model in second-cooling zone, adopting low degree of superheat casting and overall-protection casting, controlling withdrawal speed and starting roll temperature, the rolling yield and soundness get to 95.8% and 99.3% separately and reach the demand of country standard.
     通过实施精料方针、规范脱氧化工艺、优化吹氩处理工艺、选择最佳二冷区配水模型、采取钢水低过热度浇注和全程保护浇注、控制拉速、控制开轧温度等,产品成材率、合格率分别达到95.8%、99.3%,满足了国标要求。
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  相似匹配句对
     Starting with B.B.O.
     本文从B.B.O.
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     asynchronous starting;
     异步起动;
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     Study on Roll Gap of Bending Roll of Heat Coil Box and Its Starting-up Speed
     热卷箱弯曲辊辊缝及抬起速度探讨
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     Elegant Rock-and-roll
     优雅摇滚 John Richmond 2006春夏
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     CALCULATION OF ROLL FLATTENING
     轧辊弹性压扁的计算
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High temperature solution heating in the resistance furnace and rolling on the 300 mill in the laboratory are used to simulate the real Continuous CastHot Charge Rolling (CCHCR) Process. The effects of the different hot charge temperature and start rolling temperature on the microstructure and mechanical properties of K16Mn steel have been investigated. The results show that the strength is nearly equal to those produced by HCR and CCR processes,and both ductility and toughness...

High temperature solution heating in the resistance furnace and rolling on the 300 mill in the laboratory are used to simulate the real Continuous CastHot Charge Rolling (CCHCR) Process. The effects of the different hot charge temperature and start rolling temperature on the microstructure and mechanical properties of K16Mn steel have been investigated. The results show that the strength is nearly equal to those produced by HCR and CCR processes,and both ductility and toughness are good. As hot charge temperature increases,the austenite grain before rolling grows and microstructure after rolling has more heavy confused grain. These defects can be eliminated by increasing start rolling temperature and reduction amount at the first pass to make the slab recrystallized thoroughly to obtain fine austenite grain and improve properties of finished products.

采用高温固溶加热法,在300轧机上模拟现场连铸坯热装炉轧制工艺,分别考察了K16Mn钢不同热装温度和开轧温度对轧材组织性能的影响.结果表明,热装轧制和常规冷装轧制屈服、抗拉强度相当,热装轧制成品塑性、韧性均较好.热装轧制工艺对K16Mn钢组织的影响,随着热装温度的提高,轧前奥氏体晶粒变得粗大,并且轧后组织混晶程度提高.这可通过提高开轧温度,首道次采用大压下量促使铸坯发生完全再结晶来消除,从而细化晶粒,改善成品组织性能.

The transformation production for a commercial pipeline steel was investigated by hot simulation test in this paper. Based on the investigation results, the schedule with a two stage multi-pass controlled rolling and moderate cooling rate was applied to hot rolling experiments and effects of the technological parameters on microstructure and mechanical property were analyzed. The experimental results show that mechanical property of the steel is strongly affected by technical parameters of thermo-mechanical...

The transformation production for a commercial pipeline steel was investigated by hot simulation test in this paper. Based on the investigation results, the schedule with a two stage multi-pass controlled rolling and moderate cooling rate was applied to hot rolling experiments and effects of the technological parameters on microstructure and mechanical property were analyzed. The experimental results show that mechanical property of the steel is strongly affected by technical parameters of thermo-mechanical control process(TMCP) such as the start rolling temperature, the finish rolling temperature, the finish cooling temperature and the cooling rate. The acicular ferrite dominated mixed microstructure can be obtained by the improved TMCP, and the more the acicular ferrite in the mixed microstructure, the higher the mechanical property of the steel.

通过热模拟实验,研究了一种管线钢相变组织的形成规律.在此基础上进行两阶段多道次控轧和在适度冷却速度下控冷的控制热加工实验,分析了工艺参数对钢的组织结构和力学性能的影响.结果表明,开轧温度、终轧温度、终冷温度和冷却速度对管线钢的力学性能有强烈的影响.通过优化工艺,获得了以针状铁素体为主的混合组织,针状铁素体的含量越多,材料的力学性能越好.

Effects of technological parameters of thermo-mechanical control process (TMCP) on microstructure and mechanical properties of X60 pipeline steel have been investigated. Regression equations describing the relationship between technological parameters and mechanical properties are obtained:бs=0.5075ts-0.2387tf-0.3242tc+1.9163vc+324.8287,δ=-0.0017ts-0.0585tf-0.0976tc+ 0.3126vc+123.97,where ts, tf and tc are the start rolling temperature,final rolling temperature and final colling temperature...

Effects of technological parameters of thermo-mechanical control process (TMCP) on microstructure and mechanical properties of X60 pipeline steel have been investigated. Regression equations describing the relationship between technological parameters and mechanical properties are obtained:бs=0.5075ts-0.2387tf-0.3242tc+1.9163vc+324.8287,δ=-0.0017ts-0.0585tf-0.0976tc+ 0.3126vc+123.97,where ts, tf and tc are the start rolling temperature,final rolling temperature and final colling temperature (℃), respectively,and vc cooling rate(℃/s).The parameters of TMCP for obtaining better mechanical properties are given. The experimental results show that the mixed microstructure mostly composed of acicular ferrite has the optimum strength and ductility.

探讨了控轧控冷工艺参数对X60管线钢组织和力学性能的影响.分析得出了控轧控冷工艺参数与力学性能关系的回归方程: бs=0.5075ts-0.2387tf-0.3242tc+1.163vc+324.8287,δ=-0.0017ts-0.0585tf-0.0976tc+0.3162vc+123.97,给出了一种较佳的工艺制度.微观结构分析表明,针状铁素体为主的混合组织,有较高的屈服强度和良好的韧性.

 
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