The device is designed to determine the crumbling of molding and core sands in accordance with GOST and moldability in accordance with GOST 23409.15-78.
Main nodes:
Power exciter
Device for fixing test specimens
Installation principle:
Determination of formability: From a sample taken for testing in accordance with GOST by the scooping method, select a sample weighing 200 g and place it in the middle of the drum. Set the operating mode switch to 10 s, press the "Operation" button. Weigh the mixture passing through the mesh wall of the drum. The tests are carried out on three weights. Processing of results according to GOST 23409.15-78.
Determination of crumbling: The method is based on determining the value of the weight loss of a sample in a green, dried and cured state when rubbing against the walls of a mesh drum. During testing, samples are prepared in accordance with GOST The sample is weighed, then placed in the central part of the drum, which is rotated when testing raw samples for 30 s, dry - for 60 s. The sample is removed and weighed again. The tests are carried out on three samples. Processing of results according to GOST
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