A method of composite casting of a one-piece cast tool

A method of composite casting of a one-piece cast tool

  • CN 101,970,154 A
  • Filed: 03/05/2009
  • Published: 02/09/2011
  • Est. Priority Date: 03/06/2008
  • Status: Active Application
First Claim
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1. the composite casting method of a single-piece cast member instrument, this instrument comprises first (18) and second portion (19) at least, described first comprises the workpiece of instrument and is made by steel, described second portion comprises the main element of instrument and is made by grey iron, between steel and grey iron, form interconnect area (8), it is characterized in that:

  • this casting process carries out in single casting mold (2), this casting mold remains unchanged in whole casting process and seals, at first along from bottom to top direction cast steel, after finishing, the steel casting suspends, only just carry out the casting of described grey iron when the temperature of the steel in the target interconnect area (8) is fallen first temperature, described first temperature deducts about 30 °

    to 150 ℃

    corresponding to the liquidus temperature of steel.

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