UDC
620.1
DOI
10.18577/2307-6046-2018-0-3-18-27
Article PDF (Russian) (848.26 KB)
How to cite
Klyukvina T.D., Vlasova K.A., Leonov A.A., Yashina S.A. Study of the mechanism of formation of strength in self-hardening mixtures with a phenolic binder (review) // Proceedings of VIAM. 2018. No. 3 (63). Ст. 03. URL: https://www.viam-works.ru. DOI: 10.18577/2307-6046-2018-0-3-18-27.

Study of the mechanism of formation of strength in self-hardening mixtures with a phenolic binder (review)

Klyukvina T.D., Vlasova K.A., Leonov A.A., Yashina S.A.
Abstract

The aim of the work is to study the technology of obtaining forms using self-hardening mixtures based on phenolic binders. The article gives statistical data about using different types of mixtures for the cores production. The classification of the most common resins used in molding using cold-hardening mixtures is given. The specific characteristics, advantages and disadvantages of cast alkaline phenolic resins are discussed. Time characteristics and strength parameters are analyzed on the basis of the curing curve of self-hardening mixtures. Examples of defects in forms, cores and castings associated with strength of the mixtures are given. The mechanism of strength formation of alkaline phenolic resins is considered (alpha-set process).

Keywords
self-hardening mixtures, phenolic binder, single contact strength, adhesion, cohesion, alpha-set process, green sand.
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