With the development of solar photovoltaic industry, the market demand of the crucible is more and more big, the product in the photovoltaic industry has been widely used, it has become pulling large diameter single crystal silicon, the base material for large scale integrated circuit development, is one of the indispensable equipment. At the same time, this equipment good there is such a problem, in which the deformation of equipment is one of the common problems, in the course of use, how can this phenomenon? How the quality of the equipments and the quality of the products of the old age has the influence to it? In order to summarize the practical work:

1, equipment after deformation, in the process of monocrystalline silicon production will with the rise of the position of the crucible, the protruding part of the equipment will met draft tube, will directly affect the monocrystalline silicon production, will even be unable to produce.

2, soluble material occurred drum kit and to encourage larger package, in the pulling process with the decline in the level, drum kits will be gradually exposed surface, at this time has been pulled out of the ingot will rub the drum kit, if not promptly stop the furnace will crystal drop bar of a serious accident.

3, melt occurs in the hanging edge caused by quartz crucible deformation, crucible catchy projecting inward too much, when the melt end material crucible position rose to normal seeding location has impact to draft tube, which will directly lead to the serious consequences of crystal pulling can not.