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Frank A Malagari

from Ashland, MA
Age ~95

Frank Malagari Phones & Addresses

  • 68 Braeburn Ln, Ashland, MA 01721 (508) 309-3161
  • Saint Augustine, FL
  • Alexandria, VA
  • 612 Sunset Dr, Freeport, PA 16229 (724) 295-2542 (724) 295-2681

Publications

Us Patents

Processing For Cube-On-Edge Oriented Silicon Steel

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US Patent:
46937625, Sep 15, 1987
Filed:
Aug 8, 1985
Appl. No.:
6/763885
Inventors:
Frank A. Malagari - Freeport PA
Assignee:
Allegheny Ludlum Corporation - Pittsburgh PA
International Classification:
H01F 104
US Classification:
148111
Abstract:
A method is provided for final texture annealing silicon steel to produce a cube-on-edge grain orientation having lower core losses and higher magnetic permeability. The method includes using a controlled heating cycle including a substantially isothermal hold at a selected recrystallization temperature of about 1650. degree. F. to improve secondary recrystallization and the Goss texture (110) [001].

Process For Cube-On-Edge Oriented Boron-Bearing Silicon Steel Including Normalizing

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US Patent:
40309509, Jun 21, 1977
Filed:
Jun 17, 1976
Appl. No.:
5/696966
Inventors:
Jack W. Shilling - Monroeville PA
Amitava Datta - Pittsburgh PA
Frank A. Malagari - Freeport PA
Assignee:
Allegheny Ludlum Industries, Inc. - Pittsburgh PA
International Classification:
H01F 104
US Classification:
148112
Abstract:
A process for producing electromagnetic silicon steel having a cube-on-edge orientation and a permeability of at least 1870 (G/O. sub. e) at 10 oersteds. The process includes the steps of: preparing a melt of silicon steel containing from 0. 02 to 0. 06% carbon, from 0. 0006 to 0. 0080% boron, up to 0. 0100% nitrogen, no more than 0. 008% aluminum and from 2. 5 to 4. 0% silicon; casting said steel; hot rolling said steel; cold rolling said steel; normalizing said steel at a temperature of from 1300. degree. to 2000. degree. F in a hydrogen-bearing atmosphere having a dew point of from +20. degree. to +110. degree. F; applying a refractory oxide base coating to said steel; and final texture annealing said steel. The variables of time, temperature and dew point are monitored during normalizing so as to result in a steel having at least 320 parts per million of oxygen, based on the total weight of the steel, within 10 microns of the surfaces of said steel.

Controlling The Manganese To Sulfur Ratio During The Processing For High Permeability Silicon Steel

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US Patent:
40789527, Mar 14, 1978
Filed:
Jun 17, 1976
Appl. No.:
5/696969
Inventors:
Frank A. Malagari - Freeport PA
Assignee:
Allegheny Ludlum Industries, Inc. - Pittsburgh PA
International Classification:
H01F 104
US Classification:
148111
Abstract:
A process for producing electromagnetic silicon steel having a cube-on-edge orientation and a permeability of at least 1870 (G/O. sub. e) at 10 oersteds. Involved therein are the steps of cold rolling a hot rolled band to final gage without an intermediate anneal between cold rolling passes; and preparing said band from a melt having 0. 0006 to 0. 0018% boron, and manganese and sulfur contents which produce a manganese to sulfur ratio of at least 1. 83 in said band.

Boron And Copper Bearing Silicon Steel And Processing Therefore

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US Patent:
40544702, Oct 18, 1977
Filed:
Jun 17, 1976
Appl. No.:
5/696970
Inventors:
Frank A. Malagari - Freeport PA
Assignee:
Allegheny Ludlum Industries, Inc. - Pittsburgh PA
International Classification:
H01F 104
US Classification:
148111
Abstract:
A hot rolled band suitable for processing into cube-on-edge oriented silicon steel having a permeability of at least 1870 (G/O. sub. e) at 10 oersteds and a core loss of no more than 0. 700 watts per pound at 17 kilogauss; and processing for the steel from which the band is made. The hot rolled band has a thickness of from about 0. 050 to about 0. 120 inch; and consists essentially of, by weight, 0. 02 to 0. 06% carbon, 0. 015 to 0. 15% manganese, 0. 01 to 0. 05% of material from the group consisting of sulfur and selenium; 0. 0006 to 0. 0080% boron, up to 0. 0100% nitrogen, 2. 5 to 4. 0% silicon, between 0. 3 and 1. 0% copper, no more than 0. 008% aluminum, balance iron. Processing includes the steps of cold rolling the steel band to a thickness no greater than 0. 020 inch without an intermediate anneal between cold rolling passes; preparing several coils from the steel; decarburizing the steel and final texture annealing the steel. Essential to the invention is the inclusion of a controlled amount of copper in the melt.

Processing For Cube-On-Edge Oriented Silicon Steel

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US Patent:
42447577, Jan 13, 1981
Filed:
May 21, 1979
Appl. No.:
6/041138
Inventors:
Frank A. Malagari - Freeport PA
Richard P. Schrecongost - Natrona Heights PA
Assignee:
Allegheny Ludlum Steel Corporation - Pittsburgh PA
International Classification:
H01F 104
US Classification:
148111
Abstract:
A process for producing electromagnetic silicon steel having a cube-on-edge orientation. The process includes the steps of: preparing a melt of silicon steel containing from 0. 02 to 0. 06% carbon, from 0. 015 to 0. 15% manganese, from 0. 0006 to 0. 0080% boron, up to 0. 0045% nitrogen, from 0. 005 to 0. 019% sulfur, no more than 0. 0065% phosphorus and from 2. 5 to 4. 0% silicon; casting the steel; hot rolling the steel; welding the steel to another steel member of like chemistry; cold rolling the steel to a thickness no greater than 0. 020 inch; decarburizing the steel; applying a refractory oxide coating to the steel; and final texture annealing the steel.

Texture Annealing Silicon Steel

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US Patent:
41579259, Jun 12, 1979
Filed:
Apr 12, 1978
Appl. No.:
5/895678
Inventors:
Frank A. Malagari - Freeport PA
Robert F. Miller - New Kensington PA
Jack W. Shilling - Monroeville PA
James H. Wells - Natrona Heights PA
Assignee:
Allegheny Ludlum Industries, Inc. - Pittsburgh PA
International Classification:
H01F 104
US Classification:
148111
Abstract:
A process for producing electromagnetic silicon steel having a cube-on-edge orientation. The process includes the steps of: preparing a melt of silicon steel containing from 0. 02 to 0. 06% carbon, from 0. 015 to 0. 15% manganese, from 0. 005 to 0. 05% of material from the group consisting of sulfur and selenium, from 0. 0006 to 0. 0080% boron, up to 0. 0100% nitrogen, up to 1. 0% copper, less than 0. 005% antimony, less than 0. 009% aluminum and from 2. 5 to 4. 0% silicon; casting; hot rolling; cold rolling; decarburizing; applying a refractory oxide base coating; and final texture annealing. During final texture annealing the steel is heated from a temperature of 1700. degree. F. to a temperature of 1900. degree. F. at an average rate of less than 30. degree. F.

Processing For Cube-On-Edge Oriented Silicon Steel

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US Patent:
43371019, Jun 29, 1982
Filed:
Aug 18, 1980
Appl. No.:
6/179405
Inventors:
Frank A. Malagari - Freeport PA
Assignee:
Allegheny Ludlum Steel Corporation - Pittsburgh PA
International Classification:
H01F 104
US Classification:
148111
Abstract:
A process for producing electromagnetic silicon steel having a cube-on-edge orientation and a permeability of at least 1800 (G/O. sub. e) at 10 oersteds. The process includes the steps of preparing a melt of silicon steel containing from 0. 02% to 0. 06% carbon, from 0. 0006% to 0. 008% boron, up to 0. 01% nitrogen, up to 0. 008% aluminum and from 2. 5% to 4. 0% silicon, casting the steel, hot rolling the steel to hot band gage, annealing the hot band in a temperature range of from 1450. degree. -1650. degree. F. , cold rolling the steel to a final gage of about 0. 018 inch in one cold reduction, decarburizing the steel, applying a refractory oxide base coating to the steel and texture annealing the steel.

Processing For Cube-On-Edge Oriented Silicon Steel Using Hydrogen Of Controlled Dew Point

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US Patent:
40000150, Dec 28, 1976
Filed:
May 15, 1975
Appl. No.:
5/577571
Inventors:
Frank A. Malagari - Freeport PA
Assignee:
Allegheny Ludlum Industries, Inc. - Pittsburgh PA
International Classification:
H01F 104
US Classification:
148112
Abstract:
A process for producing electromagnetic silicon steel having a cube-on-edge orientation. The process includes the steps of: preparing a melt of silicon steel containing from 0. 02 to 0. 06% carbon, from 0. 0006 to 0. 0080% boron, up to 0. 0100% nitrogen and from 2. 5 to 4. 0% silicon; casting said steel; hot rolling said steel; cold rolling said steel; decarburizing said steel to a carbon level below 0. 02% in a hydrogen-bearing atmosphere havng a dew point of from +20. degree. F to +60. degree. F; and final texture annealing said steel.
Frank A Malagari from Ashland, MA, age ~95 Get Report