用金相技术结合电子探针对双辊薄带连铸带坯的纵裂纹成因进行了分析。
We analyse the formation Cause of longitudinal crack of the strip in double - roll strip continuous casting using metallographic technique and electron microprobe.
研究表明，钢液对结晶器窄面的冲击严重，导致在冲击点附近的凝固坯壳较薄。
The results show that due to the strong jet impingement on the narrow face in mold, solid shell near the impingement point is very thin.
结果表明，新型布流系统可使钢液在熔池内均匀分布，有利于薄带坯的均匀凝固。
It was shown that new type metal delivery system can make molten steel distribute uniformly in the molten pool and is favorable for strip shell to solidify uniformly.
而与模具工作表面相接触的管坯，其变形则较为均匀，材料壁厚减薄较小，达到扩径整形的目的。
However, the deformation is more uniform with regard to billet in contact with the work surface of punch, material thickness decreases less, therefore, the purpose of calibration has been reached.
研究了双辊铸轧及热轧镁合金薄带的生产工艺，利用铸轧坯直接进行热轧，研究轧制工艺参数及轧后冷却条件对镁合金微观组织的影响。
In this paper, the twin-roll casting and hot rolling were used to manufacture magnesium alloy strip, and the strip billet was rolled into thin strip.
采用温挤压制坯与温冲压成形相结合的近净成形加工技术，对壁薄且外形复杂的2a12铝合金小型外壳体进行精密成形加工。
Put forward the near-net-sharp forming process of warm extrusion and warm stamping to manufacture the precision forgings for the thin-wall shell bodies made of 2a12 aluminium alloy.
随着铸轧速度降低、铸轧区增大与铸轧坯厚度减薄，轧制压力峰值增大；
The results showed that roll casting speed increase with the decrease of the thickness of the strip, and the …
随着铸轧速度降低、铸轧区增大与铸轧坯厚度减薄，轧制压力峰值增大；
The results showed that roll casting speed increase with the decrease of the thickness of the strip, and the …
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