The Influence of Using Different Types of Risers or Chills on Shrinkage Production for Different Wall Thickness for Material EN-GJS-400-18LT

• Autorzy: Vaskova I. , Conev M. , Hrubovcakova M.

Identyfikatory

DOI

10.1515/afe-2017-0064

• Języki publikacji: EN

Abstrakty

EN

In modern times there are increasing requirements for products quality in every part of manufacturing industry and in foundry industry it is not different. That is why a lot of foundries are researching, how to effectively produce castings with high quality. This article is dealing with search of the influence of using different types of risers or chills on shrinkage cavity production in ductile iron castings. Differently shaped risers were designed using the Wlodawer´s modulus method and test castings were poured with and without combination of chills. Efficiency of used risers and chills was established by the area of created shrinkage cavity using the ultrasound nondestructive method. There are introduced the production process of test castings and results of ultrasound nondestructive reflective method. The object of this work is to determine an optimal type of riser or chill for given test casting in order to not use overrated risers and thus increase the cost effectiveness of the ductile iron castings production.

Słowa kluczowe

EN

ductile iron; shrinkage cavity; riser; chill; ultrasound

PL

żeliwo; jama skurczowa; nadlew

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2017
• Tom: Vol. 17, iss. 2
• Strony: 131--136
• Opis fizyczny: Bibliogr. 14 poz., il., rys., tab.

Twórcy

autor

Vaskova I.

• Technical University of Košice, Faculty of Metallurgy, Institute of Metallurgy Letná 9, 042 00 Košice, Slovakia

autor

Conev M.

• Technical University of Košice, Faculty of Metallurgy, Institute of Metallurgy Letná 9, 042 00 Košice, Slovakia

autor

Hrubovcakova M.

• Technical University of Košice, Faculty of Metallurgy, Institute of Metallurgy Letná 9, 042 00 Košice, Slovakia

Bibliografia

• [1] Michna, Š., Nová, I. (2008). Technology and processing of metal materials. Děčín.
• [2] Gedeónová, Z. (1990). Theory of foundry processes, 2nd edn. Bratislava: Alfa.
• [3] Karsay, S.I. (1976). Ductile Iron Vol. 1 - Production. QIT - Fer et Titane Inc.
• [4] Wlodawer, R. (1966). Directional solidification of steel castings. Pergamon Press.
• [5] Sorelmetal. (2000). Ductile Iron The essentials of gating and risering system design.
• [6] Chemex feeder systems. Retrieved March 14, 2015 from http://www.metkoha.com/en/chemex/feeder_systems/index.html.
• [7] Malik, J., Futáš, P. (2006). Technical preparation of castings production. Košice: Elfa s.r.o.
• [8] Steel Founders´ Society of America. (2001). Feeding & Risering Guidelines for Steel Castings. Retrieved October 11, 2015 from http://user.engineering.uiowa.edu/~becker/documents.dir/redbook.pdf.
• [9] Kriedel, M. (2011). Ultrasonic testing. Praha: Starmans electronics.
• [10] Deutsch, V., Platte, M., Vogt, M. (1997) Ultraschallprüfung - Grundlagen und inustrielle Anwendungen. Berlin: Springer.
• [11] Skrbek, B. (2001). Ultrasonic testing of internal defects of castings from spheroidal graphite cast iron - comparison with radiographic methods. Slévarenství. 7-8.
• [12] Belan, J. (2010). Identification of cast iron type with using of NDT methods. Archives of Foundry Engineering. 10(1), 103 – 106.
• [13] DIN EN 12680-1. (2003). Gießereiwesen, Ultraschallprüfung.
• [14] Krautkrämer, J., Krautkrämer, H. (1990). Ultrasonic Testing of Materials. 4th edn. Berlin: Springer.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)