A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method of spraying silicon nitride on inner surface of efficient crucible
The invention discloses a method of spraying silicon nitride on the inner surface of an efficient crucible. According to the method, a spray gun connected with a peristaltic pump is adopted for spraying silicon nitride serous fluid on the inner surface of the efficient crucible, wherein the spraying pressure to the inner surface of the side wall of the efficient crucible is 20-30psi, the rotary speed of the peristaltic pump is 250-400rpm; the spraying pressure to the inner surface of the bottom of the efficient crucible is 50-60psi, the rotary speed of the peristaltic pump is 100-150rpm. The ingot casting operation is executed on the efficient crucible sprayed by the method and the ingot casting technology is not adjusted particularly, the ingot casting technology of the existing common polycrystalline silicon is adopted for obtaining the polycrystalline silicon ingot with high quality and even and small grain structure and the potential risk caused by the cold impact of the prior art at the adjustment time can be avoided.
Method of spraying silicon nitride on inner surface of efficient crucible
The invention discloses a method of spraying silicon nitride on the inner surface of an efficient crucible. According to the method, a spray gun connected with a peristaltic pump is adopted for spraying silicon nitride serous fluid on the inner surface of the efficient crucible, wherein the spraying pressure to the inner surface of the side wall of the efficient crucible is 20-30psi, the rotary speed of the peristaltic pump is 250-400rpm; the spraying pressure to the inner surface of the bottom of the efficient crucible is 50-60psi, the rotary speed of the peristaltic pump is 100-150rpm. The ingot casting operation is executed on the efficient crucible sprayed by the method and the ingot casting technology is not adjusted particularly, the ingot casting technology of the existing common polycrystalline silicon is adopted for obtaining the polycrystalline silicon ingot with high quality and even and small grain structure and the potential risk caused by the cold impact of the prior art at the adjustment time can be avoided.
Method of spraying silicon nitride on inner surface of efficient crucible
CHANG CHUANBO (author) / YANG ZHENBANG (author) / YUAN CONG (author) / FENG YAN (author)
2015-05-13
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Preparation method of large-size silicon nitride crucible
| European Patent Office | 2015
Method for preparing silicon nitride crucible through reactive sintering
| European Patent Office | 2015
Manufacturing method of oxygen-free silicon nitride crucible for pulling monocrystalline silicon
| European Patent Office | 2023
Aluminum nitride based crucible and method for manufacturing same
European Patent Office | 2021