经轧制的

After introducing 56Nb steel, in order to meet performance requirement of 56Nb steel fish plate on the railroad rail, the production technique of 56Nb steel fish plate has been adopted under the factory equipment conditions: 450 kg steel ingot is prepared by melting in 8 t arc furnace and casting at 1 570-1 580℃ which is heated to 1 250-1 270 ℃, trimmed to 185 mm×195 mm bloom after rolling by 600 series 2-stand rolling mill; then rolled 15 times by 600 series 2-stand rolling mill when steel ing

介绍了56Nb钢后，根据铁道接头夹板的性能要求并结合厂方的设备状况制定了56Nb钢鱼尾板材料的生产工艺：用8 t电弧炉冶炼，于1 570～1 580℃下铸成450 kg钢锭；将钢锭加热到1 250～1 270℃，经600系列2机架轧机5道次轧制后修整成185 mm×195 mm方坯；再将钢坯加热到1 050～1 150℃，由600系列轧机（2机架）共15道次轧制，用350系列（3机架）精轧机经3道次精轧成60 kg/m的鱼尾板材料，终轧温度约900℃。

With respect of slab lateral cambering of hot rolling sizing press,the analysis shows it is the temperature difference on both sides of the slab that causes different resistance in metal's plastic deformation,which makes metal deform at different speeds.

针对热轧SP定宽轧制的板形侧弯问题，经分析指出：板坯两侧温差造成金属塑性变形抗力大小不相等，从而使金属变形速度不同，变形速度快则相同时间内移动的金属量多，最终使变形快的一侧向变形慢的一侧弯曲是板形侧弯的形成机理。

The observation of the sheet microstructure showed that under same rolling reduction be cause of the shearing stress of the cross-shear region in the cross shear rolling pro cess, it made the metal subjected more practical shearing strain and resulted in the increasing of the strength and deep drawing earing of the alloy sheet.

通过金相显微镜及电镜观察表明，在同样的几何变形程度下，由于异步轧制中搓轧区的作用，使金属经受更大的实际切变形，结果经异步轧制合金板的强度高，深冲制耳率也高。

It is found that the fine tempering sorbite is obtained in condition of 930℃ direct quenching temperature and 640℃ tempering temperature after controlled rolling.

结果表明：经奥氏体再结晶区和未再结晶区两阶段结合控制轧制后在线930℃直接淬火、640℃回火，钢板可获得均匀、细小的回火索氏体组织，其综合力学性能均超过标准要求。

It is found that the fine tempering sorbite is obtained in condition of 930℃ direct quenching temperature and 640℃ tempering temperature after controlled rolling. The mechanical properties of SPV490 steel plate are above the standard requirement.

结果表明：经奥氏体再结晶区和未再结晶区两阶段结合控制轧制后在线930℃直接淬火、640℃回火，钢板可获得均匀、细小的回火索氏体组织，其综合力学性能均超过标准要求。

Glass ,cast or rolled (excl. safety glass), coloured, opacified or flashed during manufacture, not further worked, non-wired, in sheets

玻璃板材，在制造过程中经着色、遮光或套色，压铸或轧制的，未经进一点加工，无金属丝

For sample hot rolled at 850℃ with the thickness reduction of 80% after solution treatment, there were Fe-Cr-Mo phase present in it through backscattered electron image and energy spectrum analysis. The Fe-Cr-Mo phase redissolved at 900℃ showed that it is a kind of low-temperature phase.

借助背散射电子像及能谱分析发现，经固溶处理后在850℃轧制80%变形量的试样中有Fe-Cr-Mo相析出，在随后的900℃保温淬火后该析出相溶解，表明其为低温析出沉淀相。

The forming process for the high-strength, steel-base modified polyformaldehyde composite material in five-laver structure is to melt modified polyformaldehyde by heating and roll to make the melt polyformaldehyde permeate into the gaps gaps between the large-grained spherical copper powder and screw copper nails.

四层结构的钢基铜塑复合材料的成型过程，是将改性聚甲醛加热熔化，经轧制，使熔融的聚甲醛渗透到大颗粒球形铜粉的间隙中，解决了三层材料复合过程中，熔融的聚甲醛水平流动性强过垂直方向的渗透性，造成了结合强度低的缺陷，使聚甲醛层与铜粉及基体结合更牢固，提高了其承载和抗剪切的能力。

The forming process for the high-strength, steel-base modified polyformaldehyde composite material in five-layer structure is to melt modified polyformaldehyde by heating and roll to make the melt polyformaldehyde permeate into the gaps between the large-grained spherical copper powder and screw copper nails.

五层结构的高强度钢基改性聚甲醛复合材料的成型过程，是将改性聚甲醛加热熔化，经轧制，使熔融的聚甲醛渗透到大颗粒球形铜粉的间隙中，解决了三层材料复合过程中，熔融的聚甲醛水平流动性远强过垂直方向的渗透性，造成了结合强度低的缺陷，使聚甲醛层与铜粉、螺旋铜钉及基体结合更牢固，提高了其承载和抗剪切的能力。

The forming process for the high-strength, steel-base modified polyformaldehyde composite material in five-layer structure is to melt modified polyformaldehyde by heating and roll to make the melt polyformaldehyde permeate into the gaps between the large-grained spherical copper powder and screw copper nails.

五层结构的高强度钢基改性聚甲醛复合材料的成型过程，是将改性聚甲醛加热熔化，经轧制，使熔融的聚甲醛渗透到大颗粒球形铜粉与螺旋铜钉的间隙中，解决了三层材料复合过程中，熔融的聚甲醛水平流动性远强过垂直方向的渗透性，造成了结合强度低的缺陷，使聚甲醛层与铜粉、螺旋铜钉及基体结合更牢固，提高了其承载和抗剪切的能力。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。