Choice of material and development of technology to manufacture the working parts of a rotor operating in machine for turning of triangular heaps

• Autorzy: Uhl W. , Pirowski Z. , Czekaj E. , Wodnicki J.
• Języki publikacji: EN

Abstrakty

EN

The theoretical part of the study discloses the genesis of the research which originated from a possibility of replacing the so far used expensive machine parts with parts cheaper and yet offering similar quality and performance life. A short characteristic of the machine was given where the main operating parts made so far from steel were replaced with parts made from cast iron. The equipment and its main applications were described. In the research part of the study several types of alloys were proposed. Their use is expected to ensure the required performance life of parts combined with price reduction. A short characteristic of the proposed material was given. A technology of making moulds for the said machine parts was developed. Using this technology, the respective moulds were made and poured next with three cast alloys. One of the proposed materials was subjected to four types of the heat treatment, two alloys used as reference materials were left in as-cast state. The castings were fettled and weighed. The hardness of the cast materials was measured. The working (turning) parts were delivered for operation to a sewage-treatment plant where, after assembly in a turning machine, the performance tests were conducted.

Słowa kluczowe

EN

environmental protection; innovative foundry materials; innovative foundry technologies; wear resistant alloys; mechanical properties

PL

innowacyjne materiały odlewnicze; innowacyjne technologie odlewnicze; stopy odporne na ścieranie; właściwości mechaniczne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2008
• Tom: Vol. 8, iss. 2
• Strony: 188--192
• Opis fizyczny: Bibliogr. 3 poz., rys., tab.

Twórcy

autor

Uhl W.

autor

Pirowski Z.

autor

Czekaj E.

autor

Wodnicki J.

• Department of Ferrous Alloys, Foundry Research Institute, ul. Zakopiańska 73, 30-418 Kraków

Bibliografia

• [1] Principles of construction and operation of a turning machine made by Backhus.
• [2] W. Uhl, Choice of material and development of technology to make parts of pumps resistant to abrasion wear, operating in sewage-treatment plants. A statutory work of Foundry Research Institute, I.O., Kraków , 2006.
• [3] PN-EN 1564 Founding. Austempered ductile cast irons.