Patents by Inventor Rainer Effertz

Rainer Effertz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7669447
    Abstract: The invention relates to a method for cold-rolling strips consisting of, inter alia, special steels and/or nonferrous metals, in a multi-stand tandem rolling mill. The first stand(s) carry out comparatively high reductions and the last stand(s) determine the surface quality of the strip, with a relatively low reduction. The aim of the invention is to improve the capacity of the tandem rolling mill in terms of thickness reduction and in terms of the surface quality of the rolled strips. To this end, an emulsion is used as a coolant and lubricant for the first passages of the strip through the tandem rolling mill with relatively high reduction. The adhesive coolant and lubricant film is then squeezed off the strip following removal from the roll gap of the last emulsion-operated stand. Rolling oil is used as a lubricant for especially the last passage(s) through the tandem rolling mill with relatively low reduction. The invention also relates to an installation for carrying out the inventive method.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: March 2, 2010
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Rolf Bünten, Rainer Effertz
  • Patent number: 7260968
    Abstract: An installation for cold-rolling strip composed of special steel and/or nonferrous metals, which includes a multi-stand tandem rolling mill and essentially two independent coolant and lubricant systems. The installation further includes an emulsion system with tanks, system pumps, coolers, and vacuum band filters and/or pressure band filters as well as a rolling oil system which contains the afore-mentioned components, such that the filters are extremely fine, reversible-flow filters.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: August 28, 2007
    Assignee: SMS Demag AG
    Inventors: Rolf Bünten, Rainer Effertz
  • Publication number: 20070022797
    Abstract: An installation for cold-rolling strip composed of special steel and/or nonferrous metals, which includes a multi-stand tandem rolling mill and essentially two independent coolant and lubricant systems. The installation further includes an emulsion system with tanks, system pumps, coolers, and vacuum band filters and/or pressure band filters as well as a rolling oil system which contains the afore-mentioned components, such that the filters are extremely fine, reversible-flow filters.
    Type: Application
    Filed: September 15, 2006
    Publication date: February 1, 2007
    Inventors: Rolf Bunten, Rainer Effertz
  • Publication number: 20050011243
    Abstract: The invention relates to a method for cold-rolling strips consisting of, inter alia, special steels and/or nonferrous metals, in a multi-stand tandem rolling mill. The first stand(s) carry out comparatively high reductions and the last stand(s) determine the surface quality of the strip, with a relatively low reduction. The aim of the invention is to improve the capacity of the tandem rolling mill in terms of thickness reduction and in terms of the surface quality of the rolled strips. To this end, an emulsion is used as a coolant and lubricant for the first passages of the strip through the tandem rolling mill with relatively high reduction. The adhesive coolant and lubricant film is then squeezed off the strip following removal from the roll gap of the last emulsion-operated stand. Rolling oil is used as a lubricant for especially the last passage(s) through the tandem rolling mill with relatively low reduction. The invention also relates to an installation for carrying out the inventive method.
    Type: Application
    Filed: August 28, 2002
    Publication date: January 20, 2005
    Inventors: Rolf Bunten, Rainer Effertz