منابع مشابه
Ultrasonic Testing of Steel Castings
Calibration and Reference Blocks ................................................................. 7 Longitudinal Wave Probes ............................................................................. 7 Transverse Wave Probes ............................................................................. 10 Measurement of Steel Thickness ...........................................................
متن کاملDevelopment of a Hot Tear Indicator for Steel Castings
A hot tear indicator based on the physics of solidification and deformation is presented. This indicator is derived using available data from computer simulation of solidification and solid deformation. Hot tears form when the mushy zone is starved of liquid feeding and deformed in tension. The unfed tensile deformation causes a small additional porosity. A physical model based on a mass balanc...
متن کاملRough Sets Applied to the RoughCast System for Steel Castings
Rough logic and rough sets theory are mainly devoted to analysis of incomplete, uncertain, and inconsistent data. An exploited in the article result of the theory is the so-called rough information system that gives a model for dealing with the situation in which some real objects are represented ambiguously via defined approximation (alternatives of values of the objects attributes). The propo...
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An innovative new pouring design for steel castings" (2008). Retrospective Theses and Dissertations. Paper 14902.
متن کاملModeling of Reoxidation Inclusion Formation During Filling of Steel Castings
A reoxidation inclusion model is described that simulates the entire life cycle of inclusions during the filling of steel castings and predicts their final location in the casting. Inclusions can be released into the mold at the inlet and/or nucleate on the metal free surface, where contact with oxygen from the atmosphere creates them. Inclusion motion is calculated by solving an equation of mo...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1886
ISSN: 0036-8733
DOI: 10.1038/scientificamerican07101886-8759supp