A. Finkl & Sons Co.

Other

Charles W Finkl

Algirdas A Underys

Albert L Lehman

Guy A Brada

Bruce C Liimatainen

Herbert S Philbrick, Jr

Nicholas Cerwin

William Wilson, Jr

Differential hardening apparatus for softening a portion only of a metal workpiece such as a die block consisting of apparatus for presenting a workpiece to a heat source which impinges heat directly on the workpiece and control means for causing the heat to be directed only long enough to soften only the portion which receives the heat so as to create a softened portion, such as the shank portion of a die block, and an unaffected hardened portion, such as the body portion of the die block.

Apparatus for softening a selected portion of a steel object by heating

A method and apparatus for tempering the shank portion only of die blocks which comprises subjecting the shank portion of a die block or other large metal part to electrical energy derived from induction heating or infrared heating to a controlled depth, preferably just sufficiently deep to temper the shank portion but not sufficiently deep to temper the hardened working portion of the part.

Method and apparatus for preventing cracking of the shank junction of die blocks

A steel and tool made therefrom which in a tempered condition of 388 BHN or softer has high strength, high wear resistance together with excellent toughness in the range of 15% elongation and 35 ft-lbs. charpy and having the following composition:

High impact and thermal shock resistant die steel, dies, dies blocks and

Fabricated components, such as plastic injection molds, forging tools and machine components formed from a fine grained, low phosphorus, high hardness, high wear resistance, high hardenability, good machineability and high polishability, low alloy steel which is suitable for applications at elevated temperatures and at room temperatures, and an alloy steel having the following composition,

Fine grained ductile plastic injection molds forging tools and machine

A maraging type magnetic hot work implement, such as a forging die, or a tool, such as a turbine blade, having Ni.sub.3 Mo, Ni.sub.3 Al and, preferably, Ni.sub.3 Ti strengthening precipitates dispersed uniformly, and being substantially Co free, said product having the following approximate composition by weight percent:

Maraging type hot work implement or tool and method of manufacture

A dual purpose steel having high strength, high hardness, high wear resistance, high hardenability and easy machining and therefore being equally well suited for (a) elevated temperature closed die forging (b) room temperature machine part applications, such as gears, pinions, etc.

Dual purpose steel and products produced therefrom

A warm forging implement having high tensile strength, high abrasion resistance, high impact strength and high ductility and a composition within the following ranges:

Warm forging implement, composition and method of manufacture thereof

A 12 percent stainless-type steel having high polishability characterized by high carbon, moderate Mo and a combination of V and Nb not to exceed about 0.1 percent, and a method of production which includes forming a vacuum arc remelt electrode by means of vacuum arc degassing treatment and protective pouring.

Double stabilized stainless-type steel die block

A method and apparatus for producing high quality steel having less than about 1 ppm H, 50 ppm N, 25 ppm O and 0.005 S which includes subjection to vacuum, gas purging, and alternating current heating arcs, followed by shrouded pouring into sealed ingot molds to form a VAR electrode which is subsequently remelted under a very low absolute vacuum and re-solidified.

Method and apparatus for double vacuum production of steel

A low alloy steel product having high hardenability and good machaniability in the presence of a relatively low S content, and utilizing minimal quantities of the currently expensive elements Ni and Mo is disclosed, the product having the following approximate composition:

Hot work die block

A low alloy steel having a medium carbon content, and less than about 5% and less than about 1% Mn, which has hardenability approaching unity derived from the presence of N in an amount of from about 100-400 ppm, and a method of manufacturing such a steel which preferably contains the processing step in the late stages of manufacture of bubbling nitrogen gas through the molten steel.

Nitrogen steel and method of manufacture thereof

A series of controlled quenching of elevated temperature steel work pieces includes locating hot work pieces on a support at distances from one another sufficient to avoid slack quenching and subjecting the work pieces to a forced draft at a speed which results in consistent uniformity of hardness and uniformity of grain size of which about 10 MPH is exemplary, and an apparatus therefore which provides two pass cooling so that minimum horsepower is used and environmental degradation is avoided.

Method for controlled fluid quenching of steel

A low alloy hot work implement which retains its fine grain size at elevated working temperatures up to the range of 2,200 degrees F. to 2,250 degrees F. characterized in having a substantial content of N in the range of 75-150 ppm and, preferably, Co in the range of 0.01 to 0.1 the implement being further characterized by relatively narrow ranges of C, Mn, Si, Ni, Cr, Mo, and V, and substantial contents of Al which furnishes the basis for a substantial presence of aluminum nitrides in the final product.

High temperature fine-grained steel product

A steel product, such as a medium carbon die block, having good impact, ductility, transverse and physical properties, and lower than normal sulphur contents yet having machinability equal or better than higher sulphur levels characterized by a lower than ordinary level of stringer-type inclusions, other inclusions being mainly of the non-deleterious globular type.

Low alloy steel product

This invention relates to a new method for the post melting treatment of molten steel in all, or nearly all, of the post melting systems in use at this time to lower the oxygen, hydrogen, and, to some extent, the nitrogen content thereof, and carry out the other purposes for which such systems are used including temperature and chemical homogenization continuous casting, piggy backing and other post melting treatment systems in use at this time in a manner which is less capital intensive, easier to operate and simpler in construction and operation than any of the basic systems, and apparatus therefor.

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Evanston, IL, United States of America

Charles W Finkl