Vacuum sealing problem of quartz tube
You said these functions of any one of the most simple annealing furnace can be completed on the Internet. You are just looking for an annealing furnace production plant, a plant or any ritual such as Shen Keyi, Beijing tech can be.
Of course, quartz tube can be vacuumized and used for heating. As long as you do it. A flange flange and quartz tube with O sealing ring can be, O should be able to double seal high vacuum. For the influence of temperature, the silicone ring can only be resistant to 100-200 degrees Celsius, the need to add water cooling device on the flange, of course, if your source is far away from the flange, a fan blow on it.
The above method is expensive, in fact if you want cheaper just to find a point of the quartz tube can be, the top of epithelial tube can vacuum. Quartz insulation is still relatively good, your working temperature was 500 degrees, then the head end of the temperature can only 40-50 degrees, with no consideration this is cool. Hundreds of pieces of fix.
