PL411911A1 - Castable moulding mix for producing ceramic layers of foundry moulds - Google Patents

Castable moulding mix for producing ceramic layers of foundry moulds

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Publication number
PL411911A1
PL411911A1 PL411911A PL41191115A PL411911A1 PL 411911 A1 PL411911 A1 PL 411911A1 PL 411911 A PL411911 A PL 411911A PL 41191115 A PL41191115 A PL 41191115A PL 411911 A1 PL411911 A1 PL 411911A1
Authority
PL
Poland
Prior art keywords
zrsio4
poly
particle sizes
different particle
powder
Prior art date
Application number
PL411911A
Other languages
Polish (pl)
Other versions
PL230313B1 (en
Inventor
Paweł Wiśniewski
Marcin Małek
Joanna Szymańska
Jarosław Mizera
Krzysztof Jan Kurzydłowski
Original Assignee
Politechnika Warszawska
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Politechnika Warszawska filed Critical Politechnika Warszawska
Priority to PL411911A priority Critical patent/PL230313B1/en
Publication of PL411911A1 publication Critical patent/PL411911A1/en
Publication of PL230313B1 publication Critical patent/PL230313B1/en

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Abstract

Przedmiotem rozwiązania jest lejna mieszanina, formierska do produkcji warstw ceramicznych form odlewniczych, która składa się z osnowy w postaci proszku ZrSiO4 o różnej wielkości cząstek ZrSiO4 5 µm ÷ 70 µm, spoiwa głównego w postaci wodnego nanokompozytu, zawierającego koloidalny Al2O3 o średniej wielkości cząstek 5 nm - 100 nm i zawartości Al2O3 40% 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) ilości 6% - 15% objętościowo w stosunku do ilości spoiwa głównego, środka przeciwpiennnego 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 50 - 75% wagowych, a udział proszku ZrSiO4 o różnej wielkości cząstek ZrSiO4 5 µm ÷ 70 µm wylicza się ze wzoru 1, gdzie: mp - masa proszku ZrSiO4 o różnej wielkości cząstek ZrSiO4 5 µm ÷ 70 µm stanowiących osnowę, mr - masa wodnego nanokompozytu zawierającego koloidalny Al2O3 stanowiącego spoiwo główne oraz spoiwa dodatkowego, FL - udział % proszku ZrSiO4 o różnej wielkości cząstek ZrSiO4 5 µm ÷ 70 µm stanowiących osnowę. Do obliczeń zakłada się udział % proszku ZrSiO4 o różnej wielkości cząstek ZrSiO4 5 µm ÷ 70 µm stanowiących osnowę oraz masę wodnego nanokompozytu, zawierającego koloidalny Al2O3, stanowiącego spoiwo główne.The object of the solution is a slip molding mixture for the production of ceramic layers of foundry molds, which consists of a matrix in the form of ZrSiO4 powder with different particle sizes ZrSiO4 5 µm ÷ 70 µm, the main binder in the form of an aqueous nanocomposite, containing colloidal Al2O3 with an average particle size of 5 nm - 100 nm and Al2O3 content of 40% 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 water-dilutable poly (acrylic) polymer dispersion or poly (vinyl) polymer dispersion or poly (urethane) dispersion of 6% - 15% by volume in relation to the amount of main binder, antifoaming agent in the amount of 0.010 - 0.075% by volume in relation to the number of two binders, wetting agent in the amount of 0.010 - 0, 075% by volume in relation to the quantity of two binders, the proportion of the solid phase being 50 - 75% by weight, and the proportion of ZrSiO4 powder with different particle sizes ZrSiO4 5 µm ÷ 70 µm is calculated from formula 1, where: mp - mass of the ZrSiO4 powder ZrSiO4 different particle sizes 5 µm ÷ 70 µm constituting the matrix, mr - mass of the aqueous nanocomposite containing colloidal Al2O3 constituting the main binder and additional binder, FL - the share of% ZrSiO4 powder with different particle sizes ZrSiO4 5 µm ÷ 70 µm constituting the matrix. The calculations assume the share of% ZrSiO4 powder with different particle sizes ZrSiO4 5 µm ÷ 70 µm constituting the matrix and mass of the aqueous nanocomposite containing colloidal Al2O3, which is the main binder.

PL411911A 2015-04-08 2015-04-08 Castable moulding mix for producing ceramic layers of foundry moulds PL230313B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL411911A PL230313B1 (en) 2015-04-08 2015-04-08 Castable moulding mix for producing ceramic layers of foundry moulds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL411911A PL230313B1 (en) 2015-04-08 2015-04-08 Castable moulding mix for producing ceramic layers of foundry moulds

Publications (2)

Publication Number Publication Date
PL411911A1 true PL411911A1 (en) 2016-10-10
PL230313B1 PL230313B1 (en) 2018-10-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
PL411911A PL230313B1 (en) 2015-04-08 2015-04-08 Castable moulding mix for producing ceramic layers of foundry moulds

Country Status (1)

Country Link
PL (1) PL230313B1 (en)

Also Published As

Publication number Publication date
PL230313B1 (en) 2018-10-31

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