RO82808B - Binder for mask-type ceramic moulds - Google Patents
Binder for mask-type ceramic mouldsInfo
- Publication number
- RO82808B RO82808B RO104333A RO10433381A RO82808B RO 82808 B RO82808 B RO 82808B RO 104333 A RO104333 A RO 104333A RO 10433381 A RO10433381 A RO 10433381A RO 82808 B RO82808 B RO 82808B
- Authority
- RO
- Romania
- Prior art keywords
- groups
- parts
- molecule
- binder
- type ceramic
- Prior art date
Links
- 239000011230 binding agent Substances 0.000 title abstract 3
- 239000000919 ceramic Substances 0.000 title abstract 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 3
- 235000019441 ethanol Nutrition 0.000 abstract 2
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 abstract 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 abstract 2
- 239000004094 surface-active agent Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- 238000007792 addition Methods 0.000 abstract 1
- 125000003545 alkoxy group Chemical group 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- MTKPOFJUULWZNU-UHFFFAOYSA-N ethoxysilicon Chemical class CCO[Si] MTKPOFJUULWZNU-UHFFFAOYSA-N 0.000 abstract 1
- 210000004209 hair Anatomy 0.000 abstract 1
- 238000005495 investment casting Methods 0.000 abstract 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- -1 polyethoxysiloxanes Polymers 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
Landscapes
- Mold Materials And Core Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Liantul pentru forme ceramice de tip masca, pentru turnari de precizie, conform inventiei, este constituit dintr-un polimer de alcoxisilani cu 1 la 4 atomi de carbon, cu grupe alcoxi identice sau diferite, si de preferinta, din polisilicat de etil, din alcool etilic, apa si din adaosuri de acid sulfuric si un agent tensioactiv uzual. în scopul îmbunatatirii caracteristicilor mecanice la crud si la uscat a foemelor ceramice de tip masca, liantul cuprinde în volume, 1 parte polisilicat de etil, constiuit din 85...95% în greutate polietoxisiloxani cu 4 la 6 grupe SiO, în molecula si din 5...15% alti compusi de etoxisiliciu cu 1la 10 grupe SiO, avînd eventual, pâna la 5 grupe etoxi/molecula substituite cu grupe metil, raportul între numarul total de grupe etoxi/molecula, fiind cuprins de preferinta între 0,05 la 0,50, 0,8 parti alcool etilic, 1,7 parti apa si adaosuri de 0,006 parti H2SO4 si 0,023 parti agent tensioactiv.The precision casting ceramic molding binder according to the invention consists of a polymer of alkoxysilanes of 1 to 4 carbon atoms with identical or different alkoxy groups and preferably of ethyl polysilicate of alcohol ethylene, water and sulfuric acid admixtures and a commonly used surfactant. In order to improve the mechanical properties of the mask type ceramic hairs, the binder comprises in volume 1 part of ethyl polysilicate consisting of 85 ... 95% by weight of polyethoxysiloxanes with 4 to 6 SiO groups in the molecule and from 5 to 15% of other ethoxysilicon compounds with 1 to 10 SiO groups, possibly up to 5 ethoxy groups per molecule substituted with methyl groups, the ratio of the total number of ethoxy groups to the molecule being preferably comprised between 0.05 to 0.50, 0.8 part ethyl alcohol, 1.7 parts water and additions of 0.006 parts H2SO4 and 0.023 parts surfactant.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD22128680A DD153956A3 (en) | 1980-05-22 | 1980-05-22 | BINDER FOR THE MANUFACTURE OF CERAMIC MASK FORMS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO82808A RO82808A (en) | 1984-01-14 |
| RO82808B true RO82808B (en) | 1984-01-30 |
Family
ID=5524309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO104333A RO82808B (en) | 1980-05-22 | 1981-05-19 | Binder for mask-type ceramic moulds |
Country Status (5)
| Country | Link |
|---|---|
| BG (1) | BG34929A1 (en) |
| CS (1) | CS268758B1 (en) |
| DD (1) | DD153956A3 (en) |
| HU (1) | HU192361B (en) |
| RO (1) | RO82808B (en) |
-
1980
- 1980-05-22 DD DD22128680A patent/DD153956A3/en not_active IP Right Cessation
-
1981
- 1981-03-26 CS CS812336A patent/CS268758B1/en unknown
- 1981-03-26 BG BG5138881A patent/BG34929A1/en unknown
- 1981-04-01 HU HU83981A patent/HU192361B/en unknown
- 1981-05-19 RO RO104333A patent/RO82808B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS268758B1 (en) | 1990-04-11 |
| CS233681A1 (en) | 1984-04-16 |
| HU192361B (en) | 1987-05-28 |
| BG34929A1 (en) | 1984-01-16 |
| DD153956A3 (en) | 1982-02-17 |
| RO82808A (en) | 1984-01-14 |
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