Profile piece and the method being used for manufacturing profile piece

Profile piece and the method being used for manufacturing profile piece

  • CN 103,069,019 B
  • Filed: 07/12/2011
  • Issued: 09/07/2016
  • Est. Priority Date: 08/24/2010
  • Status: Active Grant
First Claim
Patent Images

1. null1. one kind has at least one section (8 increasing hardness for manufacture、

  • 9、

    10) and at least one unhardened region (4、

    6、

    7) method of profile piece (1),

    Wherein,

    First the press bending process by least one at least one-level makes blank molding,

    And the section (8 of hardening will be needed subsequently、

    9、

    10) the higher temperature levels of 723 DEG C it is heated to above,

    And then described profile piece (1) is cool below the relatively low temperature levels of 200 DEG C,

    Wherein,

    Described profile piece (1) and hot tool move relative to each other,

    It is characterized by,

    After blank is shaped to described profile piece (1) and by the described section (8 needing hardening、

    9、

    10) before being heated to the process of higher temperature levels and/or during,

    By at least one unhardened region (4、

    6、

    7) the moderate temperature level higher than 200 DEG C less than 723 DEG C it is heated to,

    Thus to reduce stress relevant with temperature in described profile piece (1),

    So that described profile piece (1) no longer torsional deformation when cooling.

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