PL149422B2 - Self-curing forming mass or a core mass - Google Patents

Self-curing forming mass or a core mass

Info

Publication number
PL149422B2
PL149422B2 PL26463187A PL26463187A PL149422B2 PL 149422 B2 PL149422 B2 PL 149422B2 PL 26463187 A PL26463187 A PL 26463187A PL 26463187 A PL26463187 A PL 26463187A PL 149422 B2 PL149422 B2 PL 149422B2
Authority
PL
Poland
Prior art keywords
weight
parts
formaldehyde
mass
phenol
Prior art date
Application number
PL26463187A
Other languages
Polish (pl)
Other versions
PL264631A2 (en
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 filed Critical
Priority to PL26463187A priority Critical patent/PL149422B2/en
Priority to GB08804572A priority patent/GB2202856A/en
Publication of PL264631A2 publication Critical patent/PL264631A2/en
Publication of PL149422B2 publication Critical patent/PL149422B2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
    • B22C1/205—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of organic silicon or metal compounds, other organometallic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
    • B22C1/22—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
    • B22C1/2233—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Mold Materials And Core Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The sand composition of the invention consists of 100 parts by weight of silica sand, 0.4 - 1.2 parts by weight of acid type hardener and 1.2-2.0 parts by weight of urea-formaldehyde, urea-furfuryl-formaldehyde, phenol-formaldehyde or phenol-furturyl-formaldehyde resin binder, comprising 0.2 - 3 percent by weight of an alpha -functional silane. Silanes specified include alpha -ethylenediamine-methyl-triethexysilane or alpha -propylenediamine-methyl-triethexysilane, and the hardener specified in para-toluene-sulphonic acid.

Description

OPIS PATENTOWYPATENT DESCRIPTION

149 422149 422

Patent dodatkowy do patentu nr--Zgłoszono: 87 03 11 (P. 264631)Additional patent to patent no. - Pending: 87 03 11 (P. 264631)

Int. Cl.4 B22C 1/22Int. Cl. 4 B22C 1/22

Int. Cl.5 B22C 1/22Int. Cl. 5 B22C 1/22

Pierwszeństwo--URZĄD PATENTOWY RPPriority - PATENT OFFICE OF THE POLAND

Zgłoszenie ogłoszono: 88 09 01Application announced: 88 09 01

Opis patentowy opublikowano: 1991 04 30Patent description published: 1991 04 30

Twórcy wynalazku: Stanisław Młodnicki, Andrzej Baliński, Kazimierz Kluza, Tadeusz Olszowski, Wiesław Wojnowski, Stanisław Konieczny, Aleksander Herman, Bogusław DręczewskiCreators of the invention: Stanisław Młodnicki, Andrzej Baliński, Kazimierz Kluza, Tadeusz Olszowski, Wiesław Wojnowski, Stanisław Konieczny, Aleksander Herman, Bogusław Dęczewski

Uprawniony z patentu: Instytut Odlewnictwa,Authorized by the patent: Foundry Research Institute,

Kraków (Polska)Cracow, Poland)

Samoutwardzalna masa formierska lub rdzeniowaSelf-hardening molding sand or core sand

Przedmiotem wynalazku jest samoutwardzalna masa formierska lub rdzeniowa stosowana w odlewnictwie. Spośród znanych mas formierskich najbardziej zbliżona do rozwiązania według wynalazku jest masa chemoutwardzalna formierska lub rdzeniowa chroniona polskim opisem patentowym nr 124931. Masa ta składa się z piasku kwarcowego, spoiwa syntetycznego i utwardzacza, a jej cechą znamienną jest zawartość w spoiwie silanu, w szczególności silanu γ — funkcyjnego w ilości 01-1,0 części wagowych na 100 części wagowych spoiwa.The subject of the invention is a self-hardening molding or core sand used in foundry. Among the known molding sands, the most similar to the solution according to the invention is the chemically hardening molding sand or core, protected by Polish patent specification No. 124931. This sand consists of quartz sand, synthetic binder and hardener, and its characteristic feature is the content of silane in the binder, in particular γ silane - functional in an amount of 01-1.0 parts by weight per 100 parts by weight of binder.

Masa według wynalazku składa się ze 100 części wagowych piasku kwarcowego, 0,4-1,2 części wagowych utwardzacza typu kwaśnego i 1,2-2,0 części wagowych spoiwa. Spoiwem jest zawierająca silan żywica mocznikowo-formaldehydowa, mocznikowo-formaldehydowo-furfurylowa, fenolowo-formaldeyhydowa lub fenolowo-formaldehydowo-furfurylowa.The composition according to the invention consists of 100 parts by weight of quartz sand, 0.4-1.2 parts by weight of an acid hardener and 1.2-2.0 parts by weight of a binder. The binder is a silane-containing urea-formaldehyde, urea-formaldehyde-furfuryl, phenol-formaldehyde or phenol-formaldehyde-furfuryl resin.

Jako silan stosuje się silan a — funkcyjny, korzystnie a — etylenodiamino-metylotrietoksysilan o wzorze (E t 0)3 Si CH2NHCH2 CH2 NH2 lub pochodną metylową tego związku o wzorze (E t 0)3 Si CH2HN CH2 CH(CHs)NH2. Ilość silanu a — funkcyjnego w spoiwie wynosi 0,2-3% wagowych.The silane used is an α-functional silane, preferably α-ethylenediamine-methyltriethoxysilane of formula (Et O) 3 Si CH2NHCH2 CH2 NH2 or a methyl derivative of this compound of formula (Et O) 3 Si CH2HN CH2 CH (CHs) NH2. The amount of α-functional silane in the binder is 0.2-3% by weight.

Masa według wynalazku posiada wysoką wytrzymałość i pozwala na wykonywanie odlewów wolnych od wad. Wysoka wytrzymałość masy spowodowana jest dodatkiem silanu a — funkcyjnego, który zwiększa siły adhezji na granicy film spoiwa — ziarno osnowy.The mass according to the invention has high strength and allows for the production of castings free from defects. The high strength of the mass is due to the addition of a-functional silane, which increases the adhesive forces at the interface between the binder film and the matrix grain.

Przykład I. piasek kwarcowy kwas paratoluenosulfonowy żywica mocznikowo-formaldehydowofurfurylowa zawierająca 0,5% wagowych cr-propylenodiamino-metylo-trietoksysilanuExample I. Quartz sand paratoluenesulfonic acid urea-formaldehyde surfuryl resin containing 0.5% by weight of cr-propylene diamine methyl triethoxysilane

Masa o powyższym składzie ma następującą wytrzymałość na rozciąganie Rm: po 1 godz. — Rm = 0,29 MPa; po 3 godz. — Rm = 0,98 MPa; po 24 godz. — Rm= 1,52 MPa.The mass with the above composition has the following tensile strength Rm: after 1 hour. - Rm = 0.29 MPa; after 3 hours - Rm = 0.98 MPa; after 24 hours - Rm = 1.52 MPa.

— 100 części wagowych — 0,7 części wagowych — 1,5 części wagowych- 100 parts by weight - 0.7 parts by weight - 1.5 parts by weight

149 422149 422

Przykład II. piasek kwarcowy kwas paratoluenosulfonowy żywica fenolowo-formaldehydowa zawierająca 0,5% wagowych a-etylenodiamino-metylo-trietoksysilanu Example II. quartz sand paratoluenesulfonic acid phenol-formaldehyde resin containing 0.5% by weight of α-ethylenediamine-methyl-triethoxysilane — 100 części wagowych — 1,0 części wagowych — 1,5 części wagowych - 100 parts by weight - 1.0 parts by weight - 1.5 parts by weight

Masa o powyższym składzie ma następującą wytrzymałość na rozciąganie Rm: po 1 godz. — Rm = 0,41 MPa; po 3 godz. — Rm —0,86 MPa; po 24 godz. — RM= 1,12 MPa.The mass with the above composition has the following tensile strength Rm: after 1 hour. - Rm = 0.41 MPa; after 3 hours - R m —0.86 MPa; after 24 hours - RM = 1.12 MPa.

Przykład III. piasek kwarcowy kwas paratoluenosulfonowy żywica fenolowo-formaldehydowofurfurylowa zawierająca 0,65% wagowych a— propylenodiamino-metylotrietoksysilanu Example III. quartz sand paratoluenesulfonic acid phenol-formaldehyde surfuryl resin containing 0.65% by weight of α-propylene diamine methyltriethoxysilane —100 części wagowych — 1,2 części wagowych — 1,5 części wagowych —100 parts by weight - 1.2 parts by weight - 1.5 parts by weight

Masa o powyższym składzie ma następującą wytrzymałość na rozciąganie RM: po 1 godz. — Rm = 0,32 MPa; po 3 godz. — Rm — 1,10 MPa; po 24 godz. — RM= 1,73 MPa.The mass with the above composition has the following tensile strength RM: after 1 hour. - Rm = 0.32 MPa; after 3 hours - Rm - 1.10 MPa; after 24 hours - RM = 1.73 MPa.

Claims (1)

Zastrzeżenie patentowePatent claim Samoutwardzalna masa formierska lub rdzeniowa składająca się ze 100 części wagowych piasku kwarcowego, 0,4-1,2 części wagowych utwardzacza typu kwaśnego i 1,2-2,0 części Wagowych spoiwa w postaci zawierającej silan żywicy mocznikowo-formaldehydowej lub mocznikowoformaldehydowo-furfurylowej lub fenolowo-formaldehydowej lub fenolowo-formaldehydowoiurfurylowej, znamienna tym, że jako silan zawiera silan α-funkcyjny, korzystnie a-etylenodiaminometylo-trietoksysilan lub jego pochodną metylową, a ilość silanu α-funkcyjnego w spoiwie wynosi 0,2-3% wagowych.Self-hardening molding sand or core composed of 100 parts by weight of quartz sand, 0.4-1.2 parts by weight of acid hardener and 1.2-2.0 parts by weight of a binder in the form of a silane-containing urea-formaldehyde resin or urea-formaldehyde-furfuryl resin, or phenol-formaldehyde or phenol-formaldehyde surfuril, characterized in that the silane is an α-functional silane, preferably α-ethylenediaminomethyl-triethoxysilane or a methyl derivative thereof, and the amount of α-functional silane in the binder is 0.2-3% by weight. Zakład Wydawnictw UP RP. Nakład 100 egz. Cena 3000 złDepartment of Publishing of the UP RP. Circulation 100 copies. Price PLN 3,000
PL26463187A 1987-03-11 1987-03-11 Self-curing forming mass or a core mass PL149422B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL26463187A PL149422B2 (en) 1987-03-11 1987-03-11 Self-curing forming mass or a core mass
GB08804572A GB2202856A (en) 1987-03-11 1988-02-26 Self-hardening moulding or core sand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL26463187A PL149422B2 (en) 1987-03-11 1987-03-11 Self-curing forming mass or a core mass

Publications (2)

Publication Number Publication Date
PL264631A2 PL264631A2 (en) 1988-09-01
PL149422B2 true PL149422B2 (en) 1990-02-28

Family

ID=20035423

Family Applications (1)

Application Number Title Priority Date Filing Date
PL26463187A PL149422B2 (en) 1987-03-11 1987-03-11 Self-curing forming mass or a core mass

Country Status (2)

Country Link
GB (1) GB2202856A (en)
PL (1) PL149422B2 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1462366A (en) * 1973-06-28 1977-01-26 Dow Corning Ltd Process for manufacture of moulds and cores
GB1594208A (en) * 1976-12-11 1981-07-30 White Sea & Baltic Co Foundry processes and compositions

Also Published As

Publication number Publication date
PL264631A2 (en) 1988-09-01
GB2202856A (en) 1988-10-05
GB8804572D0 (en) 1988-03-30

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