Kyropoulos Sapphire Crystal Furnace Go Hydro Pole
- Details
- Category: Tungsten & Sapphire Growth Furnace News
- Published on Tuesday, 12 November 2013 10:20
Conducting electrode ( go hydro pole, crystal growth furnace main conductor ) Sapphire Dan Changjing is an important component of the vacuum furnace is one of the heating furnace and the furnace thermal field power connections only channel ; thermal field in the furnace and ( Birdcage ) direct overlap , extending to the conductive pillars outside the furnace through the conductive clip, soft connection with the power supply cabinet connections.
The component structure is complex, high precision machining difficult, mainly reflected as follows :
( 1 ) The combination of conductive column with lid :
Conductive electrode is placed in a vacuum furnace Sapphire Dan Changjing , to pass through the lid connected to external power , so between the electrodes 4 conductive column extremely strict tolerance requirements , needs and lid on the four holes exactly the same distance . If the error can not be assembled .
( 2 ) electrically conductive electrode in the process of the problem of deformation :
Electrode is made of copper raw materials processing, from raw material to finished product, to go through a lot of road cumbersome process , each process will produce stress , it is easily deformed. Especially during the final welding process, because the heat generated by the welding process causes stress release , the workpiece is very likely to cause serious distortion, finishing all tolerances are affected , and can not be restored to re- adjust .
( 3 ) Motor cooling water walking water seal :
Capacity is far greater than the closure of the electrode conductivity requirements, it will not heat conductive electrode itself , but despite vacuum crystal growth furnace thermal insulation , but still have a high temperature conductivity to the electrode . Heating wire heating thermal field through the conductive ring will direct the heat to the electrodes. Therefore, the electrode must be cooled with water to ensure the normal operation of the electrode , vacuum crystal growth furnace is a high temperature and high vacuum work environment in order to effectively grow crystals. So the main body of the electrode and the conductive pillar , walking tank closure plate hole plug part of the welding process have very strict requirements. Neither reduced conductivity due to welding , and must not have any slight leakage, or fail to achieve vacuum requirements, not grow crystals.
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