(1)坩埚最怕潮湿，放置处要干燥或木架上。
--Crucibles fear moisture.Keeping in dry place oron wood shelf
(2)熔炼时应放在炉口平面以下，避免炉盖磨损坩埚上口。
--Put the crucibles into the furnace Keeping it under the level of furnace mouth ,Otherwise the furnace cover will out the lips of the crucible
(3)坩埚夹钳应与坩埚形状相符，避免局部受力损坏。
--The clamps shape need as that of crucible,Avoiding the concertrate stress destruction the crucible.
(4)加料时应据坩埚容量，不可投料太多太紧，避免金属热膨胀，涨裂坩埚。
--Never throw too much metal one times into the crucible Avoiding the metal thermal expansion damade.
(5)使用前需在干燥设备或炉旁热烘烤（24小时内逐升500度防止炸裂。
--Before operation,Heated it first slowly(to 500 0C in 24 hour).
(6)清除坩埚内外壁熔渣或粘焦时，应轻敲，以避免损坏坩埚体。
--Clean the slag and stick cokes gently,Don't stuike it heavily.
(7)使用台座应放一些草灰,炭末粉或石棉在坩埚台座上,台座与坩埚底部一致,坩埚放置在炉内正中。
--In the case of setting,Put straw sabestos on the crucible at the exact center of the furnace.
（8）坩埚与炉壁之间应保持适当距离，且用楔牢牢固定。
--Take the adequate distance between the furnace wall and the crucible.
（9）使用过量助燃剂将减少坩埚使用寿命。
--It reduces the sevice life of the crucible to use excessive active flux,
（10）每周或每十天将坩埚转动一次，使用寿命将延长。
--By rotating the crucible every one week or ten days,it's service life can be extended.
（11）残存金属及熔渣将导致坩埚底破裂。
--Remained metals and coated scam may be cause botton cracklng.
（12）避免强氧化火焰直喷坩埚和底砣。
--Dont't face the fame of the burner directly to the crucible stand or to the furnace wall.
1/19/2009
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