Ventilation of molds for die casting
This paper describes the factors that affect gas content in castings during pressure molding. The possibility of removing air and gases from the cavity of the mold through the ventilation channels in the process of filling it with liquid metal is considered. It is shown that the previously used assu...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Belarusian National Technical University
2019-04-01
|
| Series: | Литьë и металлургия |
| Subjects: | |
| Online Access: | https://lim.bntu.by/jour/article/view/2701 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832543599601909760 |
|---|---|
| author | A. M. Mikhaltsov A. A. Pivovarchyk |
| author_facet | A. M. Mikhaltsov A. A. Pivovarchyk |
| author_sort | A. M. Mikhaltsov |
| collection | DOAJ |
| description | This paper describes the factors that affect gas content in castings during pressure molding. The possibility of removing air and gases from the cavity of the mold through the ventilation channels in the process of filling it with liquid metal is considered. It is shown that the previously used assumption about the outflow of gases from the mold as through a hole in a thin wall is not correct. The calculations, taking into account the friction factor in narrow ventilation ducts, showed that the required crosssectional area of the ventilation ducts increases 4–6 times with a depth of 0,12 mm. If the obtained value of the cross-sectional area of the ventilation ducts is not possible to realize, at a given depth, it is proposed to use an accompanying vacuum to solve the problem. |
| format | Article |
| id | doaj-art-cd15b97a40ac485f9bba529599c91392 |
| institution | Kabale University |
| issn | 1683-6065 2414-0406 |
| language | English |
| publishDate | 2019-04-01 |
| publisher | Belarusian National Technical University |
| record_format | Article |
| series | Литьë и металлургия |
| spelling | doaj-art-cd15b97a40ac485f9bba529599c913922025-02-03T11:39:50ZengBelarusian National Technical UniversityЛитьë и металлургия1683-60652414-04062019-04-0101343710.21122/1683-6065-2019-1-34-372669Ventilation of molds for die castingA. M. Mikhaltsov0A. A. Pivovarchyk1Belarusian National Technical UniversityYanka Kupala State University of GrodnoThis paper describes the factors that affect gas content in castings during pressure molding. The possibility of removing air and gases from the cavity of the mold through the ventilation channels in the process of filling it with liquid metal is considered. It is shown that the previously used assumption about the outflow of gases from the mold as through a hole in a thin wall is not correct. The calculations, taking into account the friction factor in narrow ventilation ducts, showed that the required crosssectional area of the ventilation ducts increases 4–6 times with a depth of 0,12 mm. If the obtained value of the cross-sectional area of the ventilation ducts is not possible to realize, at a given depth, it is proposed to use an accompanying vacuum to solve the problem.https://lim.bntu.by/jour/article/view/2701die castingmoldliquid metalventilation ductspressing speedcasting |
| spellingShingle | A. M. Mikhaltsov A. A. Pivovarchyk Ventilation of molds for die casting Литьë и металлургия die casting mold liquid metal ventilation ducts pressing speed casting |
| title | Ventilation of molds for die casting |
| title_full | Ventilation of molds for die casting |
| title_fullStr | Ventilation of molds for die casting |
| title_full_unstemmed | Ventilation of molds for die casting |
| title_short | Ventilation of molds for die casting |
| title_sort | ventilation of molds for die casting |
| topic | die casting mold liquid metal ventilation ducts pressing speed casting |
| url | https://lim.bntu.by/jour/article/view/2701 |
| work_keys_str_mv | AT ammikhaltsov ventilationofmoldsfordiecasting AT aapivovarchyk ventilationofmoldsfordiecasting |