Air Products and Chemicals, Inc.

Liang He

Ranajit Ghosh

Reed Jacob Hendershot

Donald J Bowe

David Millington

Jingjing Cai

Guido Plicht

Paulina Weronika Kus

Michael J Gallagher

Mark Kurt Weise

A method of controlling defects in a glass product produced in a tin bath furnace includes measuring at least one parameter of an atmosphere associated with the tin bath furnace, wherein the parameter is selected from the group consisting of dew point and density, correlating the measured parameter with defects in the glass product, and controlling the measured parameter in a direction corresponding to decreased defects in the glass product by controlling a flow rate of a process gas relative to the furnace wherein the process gas includes one or more of hydrogen and nitrogen.

Method for tin bath monitoring and control

A method and apparatus for controlling the atmosphere of a multizone calcination (firing) furnace for production of high-quality nickel-rich cathode material for lithium-ion and solid-state batteries. A high-quality oxygen-rich atmosphere is maintained to ensure the quality of the cathode material. An atmosphere control system continuously measures and analyzes the composition of the calcination furnace atmosphere in different zones and adjusts the flowrate of oxygen-rich atmosphere into the furnace to optimize the calcination process.

Furnace atmosphere control for lithium-ion battery cathode material production

A method and system for providing cooling to a part formed using high-temperature additive manufacturing process. Infrared sensors or cameras are used to measure sidewall temperatures and, optionally, top layer temperature. Coolant nozzles provide cooling to the sidewalls of the finished layers and, optionally, to the top layer. The coolant intensity of the coolant nozzles is controlled in order to reduce temperature gradients between layers and/or to maintain temperatures in each layer below preferred maximum temperature.

Method and system for improved temperature control for additive manufacturing

An apparatus for controlling blending of a gas mixture containing known components, including first, second, and third control valves for controlling the flow of first, second, and third components, respectively, a first gas density sensor to measure the density of a first mixture of the first and second components, a second gas density sensor to measure the density of a second mixture of the first mixture and the third component, and a controller to determine based on data from the first and second gas density sensors the relative compositions of the first, second, and third components in the second mixture, and to control the first, second, and third control valves to obtain a desired relative composition of the first, second, and third components in the second mixture.

Method and apparatus for using a gas density sensor to control gas mixture composition

An apparatus for measuring the composition of a gas mixture containing known components, including a first gas density sensor configured and arranged to measure the density of a first mixture made by combining a gaseous first component and a gaseous second component; a second gas density sensor configured and arranged to measure the density of a second mixture made by combining the first mixture with a gaseous third component; and a processor programmed to determined based on data from the first gas density sensor the relative compositions of the first component and the second component in the first mixture, and to determine based on the data from the second gas density sensor the relative compositions of the first mixture and the third component in the second mixture, and thus to determine the relative compositions of the first component, the second component, and the third component in the second mixture.

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Allentown, PA, United States of America

Liang He