PL412318A1 - Pouring moulding mixture for the production of layers of ceramic foundry moulds - Google Patents
Pouring moulding mixture for the production of layers of ceramic foundry mouldsInfo
- Publication number
- PL412318A1 PL412318A1 PL412318A PL41231815A PL412318A1 PL 412318 A1 PL412318 A1 PL 412318A1 PL 412318 A PL412318 A PL 412318A PL 41231815 A PL41231815 A PL 41231815A PL 412318 A1 PL412318 A1 PL 412318A1
- Authority
- PL
- Poland
- Prior art keywords
- mesh
- poly
- amount
- sic
- dispersion
- Prior art date
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- Mold Materials And Core Materials (AREA)
Abstract
Lejna mieszanina formierska do produkcji warstw ceramicznych form odlewniczych składa się z osnowy w postaci proszku SiC o różnej wielkości cząstek SiC 200 mesh ÷ 600 mesh, spoiwa głównego w postaci wodnego nanokompozytu zawierającego koloidalny SiO2 o średniej wielkości cząstek 5 nm - 20 nm i zawartości SiO2 od 25 ÷ 45% wagowych, jednego spoiwa dodatkowego wybranego z grupy: wodorozpuszczalny poli(alkohol winylowy) albo glikol poli(etylenowy) albo metyloceluloza o lepkości 20 - 5000 mPa • s albo karboksymetyloceluloza o lepkości 20 - 3000 mPa • s albo dekstryna o lepkości 20 - 4000 mPa • s albo wodorozcieńczalna dyspersja polimerowa poli(akrylowa) albo dyspersja polimerowa poli(winylowa) albo dyspersja poli(uretanowa) albo dyspersja poli(akrylowo-allilowa) albo dyspersja poli(winylowo-akrylowa), w ilości 6% - 15% objętościowo w stosunku do ilości spoiwa głównego, środka antypiennnego w ilości 0,010 - 0,075% objętościowo w stosunku do ilości dwóch spoiw, środka zwilżającego w ilości 0,010-0,075% objętościowo w stosunku do ilości dwóch spoiw, przy czym udział fazy stałej wynosi 60 - 80% wagowych a udział proszku SiC o różnej wielkości cząstek SiC 200 mesh ÷ 600 mesh, wylicza się ze wzoru 1, gdzie: mp - masa proszku SiC o różnej wielkości cząstek 200 mesh ÷ 600 mesh SiC stanowiących osnowę, mr - masa wodnego nanokompozytu zawierającego koloidalny SiO2 stanowiącego spoiwo główne oraz spoiwa dodatkowego, FL - udział % proszku SiC w o różnej wielkości cząstek 200 mesh ÷ 600 mesh stanowiących osnowę.The slip molding mixture for the production of layers of ceramic foundry molds consists of a matrix in the form of SiC powder with different particle sizes SiC 200 mesh ÷ 600 mesh, a main binder in the form of an aqueous nanocomposite containing colloidal SiO2 with an average particle size of 5 nm - 20 nm and SiO2 content from 25 ÷ 45% by weight, one additional binder selected from the group: water-soluble poly (vinyl alcohol) or poly (ethylene glycol) or methyl cellulose with a viscosity of 20 - 5000 mPa • s or carboxymethyl cellulose with a viscosity of 20 - 3000 mPa • s or dextrin with a viscosity of 20 - 4000 mPa • s or a water-borne poly (acrylic) polymer dispersion or a poly (vinyl) polymer dispersion or a poly (urethane) dispersion or a poly (acrylic-allyl) dispersion or a poly (vinyl-acrylic) dispersion in an amount of 6% - 15% by volume in relation to the amount of main binder, anti-foam agent in the amount of 0.010 - 0.075% by volume in relation to the amount of two s poiw, wetting agent in an amount of 0.010-0.075% by volume in relation to the number of two binders, the proportion of the solid phase being 60 - 80% by weight and the proportion of SiC powder with different particle sizes SiC 200 mesh ÷ 600 mesh, is calculated from formula 1, where: mp - mass of SiC powder with different particle sizes 200 mesh ÷ 600 mesh SiC constituting the matrix, mr - mass of aqueous nanocomposite containing colloidal SiO2 constituting the main binder and additional binder, FL - share of% SiC powder in different particle sizes 200 mesh ÷ 600 mesh forming the warp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL412318A PL230317B1 (en) | 2015-05-12 | 2015-05-12 | Pouring moulding mixture for the production of layers of ceramic foundry moulds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL412318A PL230317B1 (en) | 2015-05-12 | 2015-05-12 | Pouring moulding mixture for the production of layers of ceramic foundry moulds |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL412318A1 true PL412318A1 (en) | 2016-11-21 |
| PL230317B1 PL230317B1 (en) | 2018-10-31 |
Family
ID=57287966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL412318A PL230317B1 (en) | 2015-05-12 | 2015-05-12 | Pouring moulding mixture for the production of layers of ceramic foundry moulds |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL230317B1 (en) |
-
2015
- 2015-05-12 PL PL412318A patent/PL230317B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL230317B1 (en) | 2018-10-31 |
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