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Anglicky v odborných předmětech "Support of teaching technical subjects in English “

Anglicky v odborných předmětech "Support of teaching technical subjects in English “. Tutorial : Engineering technology Topic : Pressure – flasks casting Prepared by: Ing. Elena Nová. Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002

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Anglicky v odborných předmětech "Support of teaching technical subjects in English “

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  1. Anglicky v odborných předmětech"Support ofteachingtechnicalsubjects in English“ Tutorial: Engineering technology Topic: Pressure– flasks casting Prepared by: Ing. Elena Nová Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002 je spolufinancován Evropským sociálním fondem a státním rozpočtem České republiky.

  2. Pressure – flasks casting

  3. Casting with permanent moulds • Castings is made without permanent models – as follows: • Pressure casting • Casting into ingot mould • Centrifugal casting • Continuous casting

  4. Casting to permanent moulds • Machine for pressure casting

  5. Casting with permanent moulds • Shaping block : Copping plate

  6. Casting with permanent moulds • 1.Pressure casting • In pressure casting is melted steel pressured with a great speed into two or multiple moulds system. • High pressure ensures the best penetration of the melted steel into complicated forms of thin-walled moulds • Melted metal is piston ejected from pressure chamber. • Ejection is provided by two methods: • - from hot chamber • - from cold chamber

  7. Casting with permanent moulds • Casting from hot chamber – the chamber is submerged in melted metal. • It is used for casting of zinc, lead and magnesium alloys (metals with lower melting point than steel).

  8. Casting with permanent moulds • Melted metal poured into cold chamber and ejected by piston into a mould. • It is used for casting of copper and aluminum alloys. If hot chamber would be used the melted alloys would react with steel walls of chamber and piston.

  9. Describe picture • Explain technology:

  10. Describe picture

  11. Used literature • http://www.diecasting.org/faq/ • http://u12133.fsid.cvut.cz/podklady/MPL/modifikace_tlakoveho_liti.pdf

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