Compound prestress annular mould

Compound prestress annular mould

  • CN 1,092,943 C
  • Filed: 04/21/1997
  • Issued: 10/23/2002
  • Est. Priority Date: 04/21/1997
  • Status: Active Grant
First Claim
Patent Images

1. A kind of ring mould that is used for pellet feed mill has hoop (1) on the ring mould hardens the outer cylinder at portion (2) no nib place;

  • It is characterized in that;

    described ring mould is by more than more than one monomer;

    hoop (1) and the portion of hardening (2) are composited;

    And described hoop (1) applies compressive pre-stress σ

    to the portion of hardening (2) m

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