Patents Assigned to Engel Machinenbau Gesellschaft M.B.H.
  • Process for the production of a coating on the surface of plasticizing screws for injection molding machines
    Patent number: 5855963
    Abstract: A process for producing a coating on the surface of a plastifier screw for injection molding machines includes applying to a hard-metallic or ceramic substrate with low distortion, a steel screw base element, by high-speed flame spraying. During the coating process, a spray jet treats the different surface regions of the screw base element including the flanks and top of a rib as well as the base of the screw, independently.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: January 5, 1999
    Assignee: Engel Machinenbau Gesellschaft M.B.H.
    Inventors: Otto Urbanek, Peter Baldinger