• 1. rolling pass design: 孔型设计
• 2. continuous rolling pass design: 连轧孔型设计

• 1.Al ball skewing rolling pass design firstly has used design project of two grooves rolling.
  铝球斜轧模具设计首次采用了双头轧制的设计方案。
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• 2.It keeps the method of calculation rolling pieces and pass design respective - ly from making error by using method of reducing non-linear equations.
  采用求解非线性方程组的方法设计孔型尺寸，避免了因轧件尺寸和孔型尺寸分别计算所造成的误差。
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• 3.The flat die steel production line product; main product: high alloy flat die steel rolling program and pass design at Fushun Special Steel Co.
  介绍了抚顺特殊钢有限公司模具扁钢生产线生产工艺；主导产品：高台金模具扁钢轧制程序设计及孔型设计。
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