Kenneth R Moyer

US Patent:

8182617, May 22, 2012

Filed:

Nov 22, 2010

Appl. No.:

12/951355

Inventors:

Kenneth A. Moyer - Cinnaminson NJ, US

International Classification:

C22C 8/26
B22F 3/15

US Classification:

148230, 419 49

Abstract:

The present invention comprises the nitrogen alloying of stainless steel with a gaseous nitrogen compound such as nitrogen gas (N), or ammonia (NH) at high temperature wherein the reaction pressure is lowered. A base powder with properties similar to those of a martensitic stainless steel is prepared from a molten metal with the subsequent incorporation of selective additives such as cobalt, chromium, boron, copper, vanadium, niobium and mixtures thereof to improve high temperature resistance to scuffing and adhesive wear. The molten mixture is then atomized by water- or air-atomization to yield a base powder which is mixed with nitrogen or ammonia gas at various pressures in a static or fluidized bed to provide a nitrogen alloyed particulate, i. e. , a nitrided particulate alloy. The powder is heated in a hot isostatic press under vacuum with argon gas at reduced pressure and later cooled to ambient temperature.

US Patent:

8425691, Apr 23, 2013

Filed:

Dec 17, 2010

Appl. No.:

12/971068

Inventors:

Kenneth H. Moyer - Cinnaminson NJ, US

International Classification:

C23C 8/22

US Classification:

148223, 148225, 148319

Abstract:

The present invention is directed to a process for tempering steel comprising carburizing said steel in a vacuum furnace in the presence of a hydrocarbon carburizing gas in combination with hydrogen wherein said carburizing gas/hydrogen combination is administered to the vacuum furnace by cyclically reducing the pressure in the furnace followed by the pulsed addition of the hydrocarbon carburizing gas consisting of an acetylene/hydrogen mixture is in a ratio of from about 1:1 to about 1:10 to replenish the air removed in the pressure reduction step.

US Patent:

20120111454, May 10, 2012

Filed:

Dec 23, 2011

Appl. No.:

13/336723

Inventors:

Kenneth H. Moyer - Cinnaminson NJ, US

International Classification:

C23C 8/22

US Classification:

148207, 148319

Abstract:

A process for the high temperature carburization of steel comprising heating said steel in a vacuum furnace in the presence of a hydrocarbon carburizing gas in combination with hydrogen wherein said carburizing gas/hydrogen combination is administered to the vacuum furnace by cyclically reducing the pressure in the furnace followed by the pulsed addition of the hydrocarbon carburizing gas with hydrogen at partial pressure followed by a second diffusion cycle wherein the steel is further annealed for a time sufficient to allow for the additional deposition of from about 0.8% to about 3.0% m/o of said carbon onto the surface of said steel to permit the further migration of the carbon from the steel surface to the interior thereof.

US Patent:

20130126048, May 23, 2013

Filed:

May 15, 2012

Appl. No.:

13/471518

Inventors:

Kenneth H. Moyer - Cinnaminson NJ, US

Assignee:

MagnaTech P/M Labs - Cinnaminson NJ

International Classification:

B32B 15/04
C23C 8/34
C23C 8/26

US Classification:

148218, 148223, 148318

Abstract:

The present invention comprises a process for nitriding martensitic stainless steel and the alloy produced thereby comprising heating a stainless steel alloy to a temperature of from about 900 F. (480 C.) to about 2500 F. (1370 C.) in a vacuum furnace in the presence of hydrogen or argon gas in order to clean the surface. After the hydrogen or argon gas is removed from the chamber, nitrogen gas, or a different nitrogen gas derivative is injected into said furnace as a pulsed injection at a partial pressure of from about 500 torr to about 1000 torr. The steel is nitrogen alloyed at a temperature of from about 1400 F. (760 C.) to about 2200 F. (1205 C.) and then quickly quenched at ambient temperature. Preferably, after a sufficient period of time, the temperature is raised a second time from about 900 F. (480 C.) to about 2500 F. (1370 C.) prior to cooling the final product.

US Patent:

57960186, Aug 18, 1998

Filed:

Jan 29, 1997

Appl. No.:

8/790711

Inventors:

Kenneth H. Moyer - Cinnaminson NJ
David J. Geveke - Milltown NJ
Thomas R. Parr - South Bound Brook NJ
Robert B. Roaper - Martinsville NJ

Assignee:

Procedyne Corp. - New Brunswick NJ
Magna-Tech P/M Labs. - Cinnaminson NJ

International Classification:

B22F 102
B22F 312
C22C 3302
C22C 3800

US Classification:

75230

Abstract:

Ferrous powder particles are coated with vaporized phosphorus in a fluid-bed reactor to obtain homogeneous coatings of phosphorus. The coated powders are useful feed for pressed structural parts, exhibiting improved green density, compressibility and sintered density thus improving magnetic and tensile properties.

US Patent:

20150159259, Jun 11, 2015

Filed:

Dec 11, 2013

Appl. No.:

14/103789

Inventors:

Kenneth H. Moyer - Cinnaminson NJ, US

International Classification:

C23C 8/22
C21D 1/18
C22C 38/58
C22C 38/50
C22C 38/48
C22C 38/46
C22C 38/44
C22C 38/42
C22C 38/40
C22C 38/38
C22C 38/28
C22C 38/26
C22C 38/24
C22C 38/22
C22C 38/20
C22C 38/18
C22C 38/16
C22C 38/14
C22C 38/12
C22C 38/08
C22C 38/04
C22C 38/00
C21D 1/00

Abstract:

The present invention is directed to a process for carburizing low alloy steel in a vacuum furnace in the presence of a hydrocarbon carburizing gas in combination with hydrogen wherein said carburizing gas/hydrogen combination is administered to the vacuum furnace by cyclically reducing the pressure in the furnace followed by the pulsed addition of the hydrocarbon carburizing gas consisting of an acetylene/hydrogen gas mixture in a ratio of from about 1:1 to about 1:10 at increased temperature disassociate the carbon from the gas and deposit it only on the surface of said steel and not on the surface of the furnace. The continued application of increased temperature at reduced pressure causes the deposited carbon to diffuse below the surface of the steel towards the core resulting in a carburized low alloy steel product with increased hardness, ductility and improved resistance to corrosion.