摘要:
A defrosting heater in a refrigerator with a flammable refrigerant sealed therein, including a first glass tube (53) having a heater wire (52) inside thereof, a plug (58) covering both end opening parts of the first glass tube (53) and a second glass tube (54), a lead wire (55) piercing the plug (58) and connected to an end of the heater wire (52), and a positioning plate (57) disposed on a connection part of the lead wire (55) with the heater wire (52). Flame propagation can be prevented by setting the size of a space (58b) formed by the plug (58) and the positioning plate (59) according to the sealing quantity of the flammable refrigerant and the surface temperature of the heater wire (52), and an unstable state in a defrosting mode is prevented even when the flammable refrigerant leaks.
摘要:
An elongation amount of electronic parts to be bonded onto a substrate by thermocompression is accurately controlled, and thereby poor connection of the electronic parts is prevented. An electronic part compression bonding apparatus according to the present invention includes a compression bonding unit (41) which bonds the electronic parts onto the substrate by thermocompression, a pressure supply unit (48), a pressure control unit (83) which controls pressure, a heating unit (43) which heats the compression bonding unit (41), a temperature control unit (85), and a thermocompression bonding control unit (80) which controls the pressure control unit (83) and the heating unit (43) based on thermocompression bonding condition data in which at least one of pressure and heating temperature is variably set during a process from start until completion of a thermocompression bonding operation of the electronic parts. In the thermocompression bonding condition data, the pressure is set to be first pressure in a first stage in a process of the thermocompression bonding operation and second pressure, which is lower than the first pressure, in a second stage that follows the first stag
摘要:
A temperature control system for reducing flicker in an electrical resistance heater comprising: an electrical resistance heater divided into at least two electrical loads and; a source of electrical power for repetitively supplying electrical power to each of the at least two electrical loads at successive different time sub periods within a predetermined time period, wherein the sum of the power supplied to the at least two electrical loads is equal to the total power supplied to the electrical resistance heater during the predetermined time period.
摘要:
A carbon wire heating element sealing heater is provided. Therein, a carbon wire heating element using carbon fibers is sealed in a quartz glass member, wherein absorption water quantity of the carbon wire heating element is 2null10null3 g/cm3 or less.
摘要翻译:提供碳丝加热元件密封加热器。 其中,使用碳纤维的碳线加热元件密封在石英玻璃构件中,其中碳线加热元件的吸收水量为2×10 -3 g / cm 3以下。
摘要:
A system for supplying air to a discrete space to obtain a desired set point temperature within the space includes a plurality of units for conditioning the air in the space. Each of the units has an independent electric power supply cord for connection to a source of electrical power. One of the units includes a master control and another of said units includes a slave control. The master control includes a user temperature control to establish a desired set point temperature within the discrete space. Each of the units includes its own thermostat for sensing the ambient temperatures in the area of the discrete space immediately adjacent the respective units. Each of the units has its own communication device, which enables the master control on the one unit to simultaneously vary the operation of each of the units in inverse proportion to the sensed ambient temperatures to substantially uniformly condition the temperature of the air in the discrete space.
摘要:
A plurality of individually corresponding heaters and temperature sensors are provided along with a plurality of a PID control means. An average temperature/gradient temperature calculating means calculates the average temperatures of the temperatures measured by the temperature sensors and the gradient temperatures based on the measured temperatures. Each of the PID control means outputs an operation signal so that the average temperatures or gradient temperatures may be made equal to the desired values. A distributing means distributes the operation signal from each of the PID control means to each heater so that control by the PID control means may produce no effect on the control of the other PID control means.
摘要:
A coffee maker heater/warmer plate assembly includes a spring wire clamp that retains the flow-through heater centered against the bottom of the warmer plate. The spring clamp has ends that are attached to a support ring. The clamp engages a flow-through heater and biases it against the bottom of a warmer plate that is retained by the support ring.
摘要:
An electric heat sealer for sealing workpieces such as plastic bags or the like includes a casing defining a battery chamber, a press bar pivotally connected to the casing, a sealing mechanism supported on a compression spring in a spring holder inside the casing, and a safety device. The sealing mechanism is electrically connected to produce heat for sealing the workpiece being put thereon when the press bar pressed against the sealing mechanism. The safety device breaks the electrical circuit when the apparatus is not in use.
摘要:
An assembly for changing the temperature of ultrahigh-pressure fluid as it flows through ultrahigh-pressure tubing includes several thermally conductive blocks. Each block has a first bore through which the ultrahigh-pressure tubing passes, and a second bore containing a source of heating or cooling. Alternatively, resistance heating is used to increase the temperature of the ultrahigh-pressure fluid, by coupling electrodes to the outer surface of the tubing. The ultrahigh-pressure fluid is heated or cooled after it is pressurized, and is then discharged from the ultrahigh-pressure tubing at a selected temperature for use. For example, the ultrahigh-pressure fluid at a selected temperature may be discharged through a nozzle to form an ultrahigh-pressure fluid jet to cut or clean any desired surface or object, or it may be discharged to a pressure vessel to pressure treat a substance.
摘要:
A heater for a gas sensor has a first thermistor element and a second thermistor element arranged in an electrically parallel configuration. Each thermistor element may be deposited onto a substrate such that the first thermistor element extends about a perimeter of the substrate and the second thermistor element extends across a portion of the substrate intermediate the perimeter of the substrate. The thermistor elements are preferably fabricated of materials having differing thermal coefficients of resistivity. A method of heating the gas sensor includes disposing the two thermistor elements in an electrically parallel configuration over a surface of the substrate and passing an electric current through the elements.