摘要:
The method of preparing an oxide superconducting wire comprises steps of preparing a wire by coating raw material powder for a Bi—Pb—Sr—Ca—Cu—O based oxide superconductor including a 2223 phase with a metal and heat treating the wire in a pressurized atmosphere containing oxygen in a prescribed partial pressure, and the total pressure of the pressurized atmosphere is at least 0.5 MPa. The pressure heat treatment apparatus comprises a pressure furnace storing and heat treating a target in a pressurized atmosphere, a pressure regulator for measuring the total pressure in the pressure furnace, an oxygen concentration meter for measuring the oxygen concentration in the pressure furnace and a controller for controlling the oxygen partial pressure in the pressure furnace in response to the total pressure measured by the pressure regulator and the oxygen concentration measured by the oxygen concentration meter.
摘要:
A method of controlling a furnace pressure for preventing air from intruding to a heating furnace, a method of stable operation during low combustion load of heat regenerating burners and a method of measuring concentration of an atmospheric gas in a heating furnace are proposed.
摘要:
An oven includes a food chamber with an access door which houses a water evaporator chamber in fluid communication with the food chamber. By sensing the temperature of the water in the evaporator and the dry bulb temperature within the food chamber and by controlling a dry heat source that heats the air and a wet heat source that heats the water, the cook can control both the final food temperature and the degree of browning of the food.
摘要:
A method for controlling kiln pressure for a shuttle kiln having an exhaust gas fan and an exhaust gas damper in an exhaust gas passage includes the steps of performing a control operation for controlling the number of revolution of the exhaust gas fan to control flow rate of the exhaust gas to maintain the kiln pressure at a predetermined pressure, and performing a control operation for adjusting opening of the exhaust gas damper based on the number of revolution of the exhaust gas fan. The method can expand the control range of exhaust gas flow, and operation with energy saving efficiency can be performed.
摘要:
A controller for a kiln plant, typically a cement plant, has a thermodynamic controller which measures a number of variables including the kiln hood temperature and one or more output gas concentrations, and controls the fuel input to the kiln to maintain the hood temperature within a desired range and a main impeller of the kiln to maintain the measured gas concentrations within a predetermined range. The invention includes a quality controller wich controls the amount of 3CaO.SiO2 present in clinker produced by the plant. The controller comprises an inner controller which controls free-lime content in the clinker and a thermodynamic outer controller.
摘要:
Provided herein is a wafer carrier comprising a disk and a pocket, wherein the pocket is centered in the disk and holds a wafer. Also provided is a method of processing or testing a wafer for a semiconductor device, comprising the steps of placing the wafer in the wafer carrier disclosed herein; loading the wafer carrier in a loadlock chamber; and transferring the wafer carrier from the loadlock chamber to a process chamber for processing or testing.
摘要:
An oven having one or more independently adjusted radiant heaters that can be dynamically adjusted before and during a curing or heating process to account for the shape and size of an object being cured or heated, further comprising a means for dynamically controlling the level of heat output from the radiant heaters. The oven preferably has radiant heaters positioned on opposing sides of the object and one or more back panels positioned behind the radiant heaters to absorb any radiant heat that misses the object. The oven of the present invention also has a turbulent fan and a means for deflecting the air flow of the convection heat throughout the internal oven chamber and toward the object. In addition, the oven has an exhaust fan that can discharge the exhaust either outside of the oven or redirect the exhaust back into the oven chamber to raise the ambient temperature, depending on the application for which the oven is being used. A computer system uses one or more object sensors and ambient sensors to control the radiant heaters (both position and level of heat output), the turbulent fan, the exhaust fan, and water flow to the object sensor. The oven of the present invention combines three different types of method of heating: convection, ambient, and radiant. +