For having the piston of the die casting machine in cold chamber

For having the piston of the die casting machine in cold chamber

  • CN 103,648,688 B
  • Filed: 06/27/2012
  • Issued: 01/20/2016
  • Est. Priority Date: 06/28/2011
  • Status: Active Grant
First Claim
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1. for having the piston of the die casting machine in cold chamber, wherein said die casting machine comprises the forcing press with container, and described piston is received in the above-described container to slide, and described piston comprises:

  • -bar portion, described bar portion proximally extends to far-end in portion along piston axis;

    -piston crown, described piston crown to extend and described piston crown is provided with at least one sealing ring from the described far-end in described bar portion, at least one sealing ring described is accommodated in the sidewall of described piston crown in the respective ring support formed to form sealing on the described wall of a container of described forcing press, described sealing ring is longitudinally interrupted by longitudinal crack, and described longitudinal crack allows the radial dilatation of described sealing ring;

    With-lubricating loop, described lubricating loop is suitable for promoting the described slip in the above-described container of described piston and described lubricating loop comprises;

    -at least the first lubrication conduit, described first lubrication conduit to be formed in described bar portion and described terminating at distal ends in described bar portion, and-at least the second lubrication conduit, described second lubrication conduit is formed in described piston crown, fluidly be communicated with described first lubrication conduit and stretch out in described ring support in the below of described sealing ring, described second lubrication conduit is covered by described sealing ring, and lubricant is flowed out from described piston crown by the gap between described sealing ring and described piston crown and/or by described longitudinal crack.

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