Wyniki wyszukiwania - BazTech

Ograniczanie wyników

2 Archives of Foundry Engineering

Powiadomienia systemowe

Sesja wygasła!

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: heat fatigue

Sortuj według:

Ogranicz wyniki do:

Control of Selected Properties of „Vari-Morph” (VM) Cast Iron by Means of the Graphite form Influence, Described by the Mean Shape Indicator

Zych J., Myszka M., Kaźnica N.

Archives of Foundry Engineering

2019

iss. 3

43--48

The graphite form in cast iron is the structure parameter deciding on its all physical and mechanical properties. Three basic forms of graphite: flake, vermicular (compact) and nodular (spheroidal) are singled out in standard cast iron grades, without a heat treatment. Standards of individual grades of cast iron the most often allow only the homogeneous graphite form, sometimes with addition of 5÷10% of the other form. The interesting and - in the authors opinion - future-oriented material can constitute cast iron in which various forms of graphite are present, e.g. in comparative amounts: spherical and vermicular cast irons. Cast iron within which graphite occurs in two or three forms was named „Vari-Morph” (VM) cast iron, i.e. the one in which spherical and vermicular or vermicular and flake graphite occur in a wide range of proportions. The results of investigations of these new cast iron grades and their properties are presented in the hereby paper.

The stress of machine parts for pressure die casting and dies that are in contact with liquid metal influencing their service life

Ružbarský J.

Archives of Foundry Engineering

2008

Vol. 8, iss. 2

180-182

Stress of material surface at die, pressing sleeve and piston in pressure die casting process from liquid alloys is analysed. That is heat fatigue and heat and chemical effect of liquid alloys. The measures for service life of mentioned parts are choose of material, lubricants and using equipment for control of die temperature.