Comprehensive Wear Study on Powder Metallurgical Steels for the Plastics Industry, Especially Injection Moulding Machines

Abstract:

Article Preview

M390 microclean® of Böhler Edelstahl is a powder metallurgical plastic mould steel with a high level of corrosion and wear resistance and therefore often used in the plastics processing industry. But as a consequence of rapidly advancing developments in the plastics processing industry the required level of wear resistance of tool steels in this field is constantly rising. For that reason a new PM tool steel with higher hardness values and an increased amount of primary carbides has been developed to improve the resistance against abrasive and adhesive wear. The wear resistance of both steels against adhesive situations for components of the plastification unit of injection moulding machines has been tested with a novel method. In case of processing polyolefins with an injection moulding machine it was found that there is adhesive wear between the check-ring and the flights of the screw tip of the non-return valve under certain circumstances. The temperature in that region was measured with an infrared temperature sensor. The existence of significant peaks of that signal was used as an indicator for an adhesive wear situation.

Info:

Periodical:

Materials Science Forum (Volumes 534-536)

Edited by:

Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim

Pages:

657-660

DOI:

10.4028/www.scientific.net/MSF.534-536.657

Citation:

C. Gornik and J. Perko, "Comprehensive Wear Study on Powder Metallurgical Steels for the Plastics Industry, Especially Injection Moulding Machines", Materials Science Forum, Vols. 534-536, pp. 657-660, 2007

Online since:

January 2007

Export:

Price:

$38.00

[1] G. Mennig: Wear in Plastics Processing. Hanser Publishers, Munich Vienna New York, (1995).

[2] B. Hribernik, J. Stamberger, W. Friesenbichler: Verschleiß von Werkzeugstählen unter den Bedingungen des Spritzgießens. Steel & Metals Magazine 27 (1989) 3, pp.180-183.

[3] W. Friesenbichler: Verschleißapparatur mit integrierter Messtechnik zur Messung des abrasive/korrosiven Verschleißes an Kunststoff-Formenstählen. Proceedings of the 15. Leobener Plastics Colloquium. (1999).

[4] C. Gornik, H. Bleier, W. Roth: The Tip Desides. Kunststoffe plast europe, Vol. 91 (2001) 1, pp.27-29.

[5] C. Gornik: Untersuchung des Schließverhaltens von Rückstromsperren. Diploma thesis at the University of Leoben, (1998).

[6] G.A. Fontalvo: Adhesive Wear of Tool Steels. Ph.D. thesis at the University of Leoben. (2004).

[7] H. Potente, W.H. Toebben, E. Kaiser: Einsatzprobleme von Rückstromsperren in der Spritzgießpraxis. Plastverarbeiter 53 (2002) 3, pp.34-35.

[8] W. Stasko, K.E. Pinnow, W.B. Eisen: Development of Ultra-high Vanadium Wear Resistant Cold Work Tool Steels. Advances in Powder Metallurgy and Particulate Materials, MPIF, Princeton, NJ, (1996).

[9] S. Wilmes, G. Zwick: Effect of Niobium and Vanadium as an alloying element in tool steels with high chromium content. in: Proceedings of the 5th International Conference of Tooling, University of Leoben, Austria. 1999, pp.227-241.

[10] J.F. Archard: Wear Theory and Mechanisms. Wear Control Handbook, ASME New York, (1980).

In order to see related information, you need to Login.