Since the birth of precalcining kiln in the early 1970s, it has gone through four stages of development. (1) The first stage. Early to mid 1970s. It is the birth and development stage of pre-decomposition technology.Influence of vacuum heat treatment on tooth surface structure In 1964, the German Dottenhausen cement plant used oil shale containing combustible components as a component of cement raw materials. Vacuum Carburizing Technology of Automobile Connecting RodIn order to avoid premature volatilization of combustible components in the low-temperature part, they fed oil-bearing shale raw meal in the middle of the suspension preheater to increase the decomposition rate of raw meal entering the kiln, creating a precedent for pre-decomposition technology. But the precalciner kiln that really uses advanced fuel as the second heat source in the calciner started in 1971.Vacuum sintering systems Therefore, the birth of precalciner kiln should be the first SF kiln (Suspension Preheater-Flash Furnacel) jointly developed by Japan IHI Company and Chichibu Cement Company. After the birth of the first SF kiln, various types of precalciner kilns appeared one after another in Japan (MFC furnace of Mitsubishi Corporation - 1971; RSP furnace of Onoda Cement Company - 1972; KSV furnace jointly developed by Kawasaki and Ube Cement Company - 1974 year, etc.). All calciners use heavy oil as fuel.Applications of vacuum brazing
Click the "Furnace Body Seal Loosen" button until the computer screen displays "Furnace Body Seal Loosen in Place"; click the "Furnace Door Up" button until the computer screen displays "Furnace Door Up in Place"; click "Trolley Out" button until the trolley comes out of the furnace as a whole and does not touch the limit baffle on the track.Sintering of B4C by Pressureless Liquid Phase Sintering Hang down the charging rack on the furnace body, check the aluminum alloy single wires that have been inspected by the quality inspection team, classify the aluminum alloy single wires with the same resistance and similar tension according to the same model, and then place the aluminum alloy single wires neatly on the charging rack on, and make a record. When installing the wires, it should be ensured that there should be a certain gap between every two trays for air circulation.Vacuum Heat Treatment of Fasteners Hoist the installed loading racks on the trolley one by one, and keep the loading racks stable during hoisting to prevent the loading rack from shaking and damaging the insulation layer of the trolley. And check whether there are protrusions on both sides of the trolley to prevent the furnace wall from being scratched when entering the furnace, Silicon Carbide Reaction Sintering Processand check whether there are sundries on the trolley track that affect the trolley entering the furnace. After the inspection is normal, press the "trolley in" button until the computer screen displays "trolley in place"; press the "furnace door down" button until the computer screen displays "furnace door down in place"; click "furnace body Press the button until the computer screen displays "The furnace body is sealed and pressed in place".Vacuum sintering of transparent ceramics
Since the birth of precalcining kiln in the early 1970s, it has gone through four stages of development. (1) The first stage. Early to mid 1970s. It is the birth and development stage of pre-decomposition technology.Influence of vacuum heat treatment on tooth surface structure In 1964, the German Dottenhausen cement plant used oil shale containing combustible components as a component of cement raw materials. Vacuum Carburizing Technology of Automobile Connecting RodIn order to avoid premature volatilization of combustible components in the low-temperature part, they fed oil-bearing shale raw meal in the middle of the suspension preheater to increase the decomposition rate of raw meal entering the kiln, creating a precedent for pre-decomposition technology. But the precalciner kiln that really uses advanced fuel as the second heat source in the calciner started in 1971.Vacuum sintering systems Therefore, the birth of precalciner kiln should be the first SF kiln (Suspension Preheater-Flash Furnacel) jointly developed by Japan IHI Company and Chichibu Cement Company. After the birth of the first SF kiln, various types of precalciner kilns appeared one after another in Japan (MFC furnace of Mitsubishi Corporation - 1971; RSP furnace of Onoda Cement Company - 1972; KSV furnace jointly developed by Kawasaki and Ube Cement Company - 1974 year, etc.). All calciners use heavy oil as fuel.Applications of vacuum brazing
Click the "Furnace Body Seal Loosen" button until the computer screen displays "Furnace Body Seal Loosen in Place"; click the "Furnace Door Up" button until the computer screen displays "Furnace Door Up in Place"; click "Trolley Out" button until the trolley comes out of the furnace as a whole and does not touch the limit baffle on the track.Sintering of B4C by Pressureless Liquid Phase Sintering Hang down the charging rack on the furnace body, check the aluminum alloy single wires that have been inspected by the quality inspection team, classify the aluminum alloy single wires with the same resistance and similar tension according to the same model, and then place the aluminum alloy single wires neatly on the charging rack on, and make a record. When installing the wires, it should be ensured that there should be a certain gap between every two trays for air circulation.Vacuum Heat Treatment of Fasteners Hoist the installed loading racks on the trolley one by one, and keep the loading racks stable during hoisting to prevent the loading rack from shaking and damaging the insulation layer of the trolley. And check whether there are protrusions on both sides of the trolley to prevent the furnace wall from being scratched when entering the furnace, Silicon Carbide Reaction Sintering Processand check whether there are sundries on the trolley track that affect the trolley entering the furnace. After the inspection is normal, press the "trolley in" button until the computer screen displays "trolley in place"; press the "furnace door down" button until the computer screen displays "furnace door down in place"; click "furnace body Press the button until the computer screen displays "The furnace body is sealed and pressed in place".Vacuum sintering of transparent ceramics