METHOD OF SIZE CONTROL OF INVESTMENT PATTERN

METHOD OF SIZE CONTROL OF INVESTMENT PATTERN

FIELD: foundry. SUBSTANCE: for carrying out testing, specimen is made in form of flat H-beam. Specimen models free and hindered shrinkage of pattern. It is used for determination of deviation of sizes from nominal sizes of pattern cavity, treatment and estimation of accuracy class of withdrawn patte...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: EVSTIGNEEV A.I, CHERNOMAS V.V
Format: Patent
Sprache:eng
Schlagworte:
CASTING
FOUNDRY MOULDING
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
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Beschreibung
Zusammenfassung:FIELD: foundry. SUBSTANCE: for carrying out testing, specimen is made in form of flat H-beam. Specimen models free and hindered shrinkage of pattern. It is used for determination of deviation of sizes from nominal sizes of pattern cavity, treatment and estimation of accuracy class of withdrawn patterns. Method allows estimation of real values of pattern sizes deviations after their manufacture and in service. EFFECT: higher efficiency. 1 dwg