FIELD: instrument making.
SUBSTANCE: invention is intended for production of monolithic homogeneous ingots of quartz glass used in instrument making for production of high-quality quartz parts and quartz sensitive elements. Method is based on vacuum melting of powder quartz material, which is poured from heated hopper and melting is carried out in layers with gradual filling melting crucible. To increase degree of purification from impurities, thickness of each fused layer is selected at level of maximum size of particles of powder material, and duration of process of layer formation is limited by duration of fusion, spreading and degassing.
EFFECT: disclosed method compared to traditional methods of vacuum crucible melting provides low bubble content of quartz glass, and increases its homogeneity and optical transmission coefficient.
4 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| MELTING METHOD OF QUARTZ GLASS | 2019 |
|
RU2731764C1 |
| METHOD OF PURIFYING QUARTZ MATERIAL | 2008 |
|
RU2385299C1 |
| METHOD OF PRODUCING REFRACTORY MATERIAL POWDER AND DEVICE TO THIS END | 2010 |
|
RU2446915C2 |
| METHOD AND DEVICE FOR PRODUCTION OF CONTINUOUS MINERAL FIBER | 2018 |
|
RU2689944C1 |
| METHOD OF PRODUCING DIOPSIDE GLASS (VERSIONS) | 2019 |
|
RU2712885C1 |
| METHOD AND DEVICE FOR PRODUCTION OF METAL INGOT | 2020 |
|
RU2753847C1 |
| METHOD OF PRODUCING CHROME-DIOPSIDE GLASS (VERSIONS) | 2019 |
|
RU2708438C1 |
| UNIT FOR MAKING ARTICLES OF QUARTZ GLASS | 0 |
|
SU937357A1 |
| METHOD FOR PRODUCING 3D OBJECTS OF COMPLEX SHAPE FROM HIGH-ENTROPY ALLOY CERAMICS USING JET APPLICATION OF BINDER | 2022 |
|
RU2810140C1 |
| METHOD OF PRODUCING QUARTZ GLASS | 0 |
|
SU716995A1 |
