河北省津大熔铜碳化硅石墨坩埚U型30#等静压坩埚

坩埚的底部支撑：
the bottom of the crucible support:
1.安装坩埚时，坩埚的底部支撑使用表面平整的、足够大的圆柱形底座，底座的直径至少要与坩埚的底部相同，好是略大2-3cm，且底座高度略出火口，从而防止火焰直接烧到坩埚底部。否则容易造成底部材料迅速被侵蚀，坩埚变成锥形，或由于坩埚底部受力不均而使坩埚开裂。Install the crucible, crucible bottom supporting large enough of a cylindrical base must be used with smooth surface, and the base diameter of at least to the bottom of the crucible, preferably 2-3cm, and the base height is slightly higher than the outlet, thereby preventing direct flame burn at the bottom of the crucible. Otherwise, it is easy to cause the bottom material to be eroded rapidly, and the crucible is tapered, or the crucible is cracked due to the uneven force at the bottom of the crucible.
2.为防止坩埚与底座粘连，可以在坩埚与底座间放一层隔离物（如：细耐火砂或高温棉。）
In order to prevent the crucible from sticking to the base, a layer of isolation between the crucible and the base (e.g., fine sand or high temperature) can be provided.
3.在倾转炉中使用卡隼式底座时，底座的凸起和坩埚凹槽是互相匹配的。如果底座的凸起太高或者尺寸太大，坩埚底部会受到挤压，必然造成底部破裂，而且在倾倒后，坩埚不能被有效地固定。Use a tenon type base in tilting converter, must ensure that the base bulge and the groove is matched in the crucible. If the height of the base is too high or the size is too large, the bottom of the crucible will be squeezed, and the bottom will be broken. After the dumping, the crucible cannot be effectively fixed.
4.安装带长浇嘴的倾转炉坩埚时，要提供高度合适的底座并把坩埚支撑固定好，如果底座支撑不合适，此类坩埚会只靠浇嘴“悬挂”在炉子内。这样坩埚会从上部断裂掉。
When installing a tilting converter crucible with a long spout, a highly suitable base is provided and the crucible is secured to the support, and if the base is not properly supported, such a crucible will be "suspended" in the furnace only by the spout. So the crucible will break from the top. 石墨坩埚碳化硅坩埚廊坊