SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER (foundry moulding B22C; working stone or stone-like material B28D; shaping of substances in a plastic state, in general B29C; making layered products not composed wholly of these substances B32B)

Description

B28B covers machinery and processes for forming clay, ceramic compositions, slag, and cementitious mixtures (such as plaster, concrete, and cement) into finished shapes. This subclass encompasses extrusion, pressing, casting, molding, and other shaping techniques applied to these materials before they are fired, set, or hardened. Typical applications include brick and tile manufacturing, pottery production, precast concrete elements, and plaster products. The classification specifically addresses the mechanical shaping stage and does not extend to firing processes, which are classified elsewhere in the ceramic and cement technology sections.

11 direct subcodes

Child Classifications

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B28B 1/00 Producing shaped articles from the material (using presses B28B3/00; shaping on moving conveyors B28B5/00; producing tubular articles B28B21/00 )
B28B 11/00 Apparatus or processes for treating or working the shaped articles (specially adapted for tubular articles B28B21/92; decoration or surface treatment in general B05, B44; compacting concrete in situ in connection with building E04G21/06; drying F26)
B28B 13/00 Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
B28B 15/00 General arrangement or layout of plant
B28B 17/00 Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping (moulds B28B7/00; after-treatment B28B11/00; feeding or discharging B28B13/00; arrangements for embedding elements in the material B28B23/00)
B28B 19/00 Machines or methods for applying the material to surfaces to form a permanent layer thereon (making shaped articles on mandrels B28B1/30; applying liquids or other fluent materials to surfaces in general B05C; glazing or engobing C04B)
B28B 21/00 Methods or machines specially adapted for the production of tubular articles
B28B 23/00 Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; (B28B21/00 takes precedence; in units for prefabricated buildings B28B7/22)
B28B 3/00 Producing shaped articles from the material by using presses (shaping on moving conveyors B28B5/00); Presses specially adapted therefor (presses in general B30B)
B28B 5/00 Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
B28B 7/00 Moulds; Cores; Mandrels (specially adapted for the production of the tubular articles B28B21/00; )