Degassing of a blender device
The blender chamber inner wall of the blender equipment, various impurities are adsorbed. They can not obtain a sufficiently high blender is released into the blender chamber as a gas released in the process of evacuating to high
blender review. Consequently, say that the baking by winding a heater wire-like or tape-like blender chamber outer wall, and heating the entire chamber, and release the gas in advance. By performing baking while pulling a blender pump, by being evacuated to a blender pump (chamber after opening is often particularly water) residual impurities in the chamber is discharged into the blender chamber, the high blender of the blender chamber thereafter it is possible to be.
It is carried out many such blender apparatus in blender or equipment used in semiconductor process is a manufacturing process of integrated circuits, such as impurities in the blender chamber is likely to affect the yield of the manufacturing process, is necessary to obtain an ultra-high blender.
Looking at the pictures of a semiconductor manufacturing apparatus, usually made up into a coiled silver paper, but it is one that is in rolls unevenness so as not to heat during the baking.
Baking of lead cooling reactor
The reactor was a coolant lead bismuth, releasing alpha line in adhering to the reactor in the form 210 next polonium, PbPo of (Polo two Umm Kanamari) coolant and neutron capture, the maintenance difficult to. Therefore, prior to the reactor maintenance, by heating to 500 ° under reduced pressure to 0.4Pa in the blender chamber and the reactor is removed from the reactor and evaporation of the two um of lead Polo.
By using lead-bismuth, without slowing down the neutrons in the fast breeder reactor, or nuclide converted to plutonium-239 uranium 238 efficiently, half-life (such as neptunium, americium is long minor actinides, then divide in collision of thermal neutron it can be by the fission hate) "nuclear waste very long half-life", to generate the nuclear thermal while converted into fission products such as cesium short-half-life. In addition, by generating fast neutrons in the spallation reaction by colliding lead atoms / bismuth atom protons accelerated, is allowed to fission in fast neutron higher order plutonium fuel and minor actinide fuel subcritical in accelerator-driven subcritical reactor, it is possible to generate a nuclear thermal while converting the fission products of short half-life. ("Garbage incineration power generation of nuclear" so-called. Incidentally, there is also a way to crushing target tungsten, and colliding protons, but the target and coolant. Cooling efficiency is higher towards the same) Also, the heat conduction from the gas and water to rate has a higher cooling capacity well, has a higher boiling point without applying high pressure, it is possible to improve the thermal efficiency.
Spacecraft and satellites
Machinery working in space, such as a spacecraft or satellite, become low temperature in the cooling by radiation or high temperature due to solar radiation When leave alone. There is a temperature range of operating the various devices that are built to have a mechanism for keeping the state.
State of high temperature, to deal with cooling by (radiator) heat dissipation plate. State of the low-temperature heat treatment is performed by heating mechanism that is equipped and for. I call this the baking heat treatment.
