Patents Assigned to VOESTALPINE PRECISION STRIP AB
  • Long life cermet coated creping blade
    Patent number: 10125455
    Abstract: A blade for creping a paper web from a Yankee cylinder surface is made of a steel substrate having a thickness of 0.7 mm-2 mm. The steel substrate is covered by a cermet coating that forms a working edge adapted for contact with the surface and a web impact area upon which the web impacts during creping. The cermet coating includes chromium carbides and tungsten carbides in a nickel based metal matrix. The cermet coating has a porosity of <2 volume % and a hardness of >1100 HV0.3.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: November 13, 2018
    Assignee: VOESTALPINE PRECISION STRIP AB
    Inventors: Chris Millward, Tuuli Kamppila
  • Creping blade and method for its manufacturing
    Patent number: 9896802
    Abstract: The invention relates to a creping blade for the detachment of a travelling paper web from a dryer cylinder, said blade having a working edge to be placed against the cylinder, wherein the creping blade has a tensile strength of 1800-2500 N/mm2 and a hardness of 57-66 HRC in the hardened and tempered condition and wherein the blade is made from a steel, which comprises the following main components (in wt. %): C: 1.2-1.5; Si: 0.1-0.8; Mn: 0.1-0.7; Cr: 4.2-5.2; Mo: 3.0-4.0; V: 3.2-4.2; N: 0.01-0.15; balance Fe and impurities.
    Type: Grant
    Filed: January 17, 2015
    Date of Patent: February 20, 2018
    Assignee: VOESTALPINE PRECISION STRIP AB
    Inventor: Chris Millward
  • Stainless steel strip for flapper valves
    Patent number: 9890436
    Abstract: A cold rolled and hardened martensitic austenitic stainless steel strip for flapper valves in compressors is made from steel combining, in weight %(wt. %), the following elements: C: 0.3-0.5, Si: 0.2-0.8, Mn: 0.2-1.0, Cr: 12.0-15.0, Mo: 0.50-2.00, N: 0.02-0.15, and V: 0.01-0.20. The steel strip has a matrix consisting of tempered martensite and between 5 and 15 volume % austenite and a tensile strength (Rm) of 1970-2300 MPa. The steel strip has a thickness of 0.07-3 mm and a width of ?500 mm.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: February 13, 2018
    Assignee: VOESTALPINE PRECISION STRIP AB
    Inventors: Chris Millward, Azhar Nawaz, Alexander Lof