Tests of moulding mixture by using various clay binder granularity

• Autorzy: Vasková, I. , Malik, J. , Futáš, P.
• Języki publikacji: EN

Abstrakty

EN

Bentonite as foundry binder has dominant and important significance in Slovak and Czech foundries. Present - day wide world produce of casts is estimated to 80 mil ton. There are about 60-70% casts into bentonite moulding mixtures. We say about mixture of first binder generation where join is results of capillary pressure force and Van der Waals force (forming mixture on the base of bentonite binder). European initions of this technology be included in thirties last century. This technology will have dominant position in spite of formation and development of new manufacturing processes in future. There are these advantages of using moulding mixture on the bentonite base: high value of compression strength and plasticity of this binder is achieved at low content of surface moisture - this fact makes it possible to pour by technology of raw clay, relatively low costs by up to raw material, Cca 95 - 98% repeated usage of moulding mixture, high productivity of used production engineering, high quality of casts (quality surface, uniform accurance, casts without defects) is assured by modern way of ramming, hygienic and ecological advantage.

Słowa kluczowe

PL

masa formierska; nieorganiczny system wiążący; lepiszcze ilaste

EN

moulding mixture; opening material; inorganic binding system; clay binder

• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2009
• Tom: Vol. 9, iss. 1
• Strony: 29-32
• Opis fizyczny: Bibliogr. 4 poz., rys., tab., wykr.

Twórcy

autor

Vasková, I.

autor

Malik, J.

autor

Futáš, P.

• Department of Ferrous Metallurgy and Foundra, Faculty of Metallurgy, TU Košice, Slovakia,

Bibliografia

• [1] Jelínek, P. : Bentonitové jíly, struktúra, vlastnosti a použití jako slévarenská pojiva,.Most, 2002
• [2] Adámeková, Z.:Regenerovanie formovacích zmesí. Materials science and technology MTF STU,1335 - 9053 2008 /1.
• [3] Nemak Slovakia, s.r.o.- company matter.
• [4] Vasková, I. a kol.: Vplyv frakčnej skladby bentonitu na technologické vlastnosti BFZ. Technologické inžinierstvo,2008, 2.