The automatic exhaust furnace door structure of the muffle furnace special for the tungsten-molybdenum alloy comprises a support and a furnace body, wherein the furnace body is formed by a shell, a thermal insulating layer and a hearth; a feeding mechanism is arranged on one end of the ...
The dry gel was crushed in a mortar and then placed in a muffle furnace and calcined at 500°C for 2 h to obtain nano-TiO2. Nano-TiO2 sols and nano-TiO2 particles are shown in Figure 1. Figure 1 (a) The sol of TiO2 and (b) the particles of TiO2. The yield of nano-TiO2 in...
The packed materials with nanometer film would be dried at 80°C for one hour before they were put into a muffle furnace to calcine at 450~600°C for two hours. At last, the film gradually refrigerated to ambient temperature [9]. In this experiment, we platted nano-TiO2 thin film on ...
The aluminum-clad round tube with a screw insert is then annealed in an annealing furnace at 850s for air in an annealing furnace. Then, the structural enhancer is washed with a 30% aqueous dispersion of gamma-alumina and coated (filled) with 45 g of AlgO. It is then dried at 120 s ...
2. The exhaust pipe of the biosafety laboratory room can double as the exhaust pipe of the biosafety cabinet. 3, the exhaust system should be able to ensure that the biosafety cabinet relative to the room where it is negative pressure. ...
The Class II B2 biosafety (safety) cabinet must be connected through a hard pipe and sealed to the exhaust system. The exhaust air volume (defined as the air flow rate per unit time) and static pressure of the exhaust system must be consistent with the requirements specified for the safety...
and Pd-SSZ-13-25 according to the SiO2/Al2O3of support zeolite H-SSZ-13 with 10~11, 16~17, and 24~25, respectively. The sample was thermally aged in a muffle furnace at 800 °C for 10 h, respectively. The aged samples were labeled as Pd-SSZ-13-11-A, Pd-SSZ-13-17-A, and...
(3) A magnetic stirrer was used to stir solution B for 2 h, and then solution B was put in an oven at 80 ◦C for 12 h. The block solid could be obtained. Then, it was ground into powder and placed in a ceramic crucible. (4) The crucible was placed in a muffle furnace at ...
(3) A magnetic stirrer was used to stir solution B for 2 h, and then solution B was put in an oven at 80 °C for 12 h. The block solid could be obtained. Then, it was ground into powder and placed in a ceramic crucible. (4) The crucible was placed in a muffle furnace at a...