Automatic spraying technology of coating of large-size crucible for ingot casting and crucible

The invention discloses an automatic spraying technology of a coating of a large-size crucible for ingot casting and a crucible. The automatic spraying technology comprises the following steps that the large-size crucible for ingot casting is preheated, and a mechanical arm drives a spraying gun to automatically spray a spraying solution to the inner wall of the crucible according to the sprayingpath. According to the automatic spraying technology, by optimizing the spraying path of the spraying gun and the spraying solution proportion, spraying uniformity and consistency of the inner wall ofthe large-size crucible are ensured, the problem that when silicon ingot of the large-size crucible is sprayed automatically, crucible sticking occurs easily, and ingot cracking is caused is avoided,multiple crucibles can be sprayed automatically and synchronously, and the spraying efficiency is improved. 本发明公开了种大尺寸铸锭用坩埚涂层的自动喷涂工艺及坩埚，其中，自动喷涂工艺包括以下步骤：预热大尺寸铸锭用坩埚，以及机械臂带动喷枪使用喷涂溶液按喷涂路径对坩埚内壁进行自动喷涂。本发明通过优化喷枪的喷涂路径和喷涂溶液配比，保证对大尺寸坩埚内