Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Occupations | Lays out parting line on patterns and casts plaster molds according to blueprints, sketches, and oral instructions, applying knowledge of metal characteristics, pattern contours, and pouring procedures: Locates and scribes parting line on wood, metal, or plastic patterns, using measuring instruments, such as calipers, square, depth gauge, and straightedge. Mixes plaster powder and water according to standard formula. Places cope and drag (upper and lower half of flask) on molding table. Pours liquid plaster into drag and positions pattern in plaster up to parting line. Removes excess plaster, using straightedge, and allows mold to harden. Places cope on completed drag, and makes depressions in plaster around drag pattern to ensure accurate joining of mold halves for casting. Brushes parting agent on surfaces of mold, pattern, and flask and pours liquid plaster into cope. Separates cope and drag after specified time and removes pattern. Repairs cracks and broken edges of molds, using molder's handtools, such as spoon, trowel, and slick. Removes excess plaster from molds, using knife or bandsaw. Joins cope and drag sections of mold together by aligning them in flask and pouring liquid plaster over them. May cut gates and risers into baked mold. May position cores in drag and assemble mold. May pour molten metal into molds, using hand ladle. (references) |
Source: compiled by the editor from various references; see credits. | |
Hexadecimal (or equivalents, 770AD-1900s) (references)50 41 54 54 45 52 4E 4D 41 4B 45 52 2C 50 52 45 53 53 55 52 45 43 41 53 54 |
| Leonardo da Vinci (1452-1519; backwards) (references)
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Binary Code (1918-1938, probably earlier) (references)01010000 01000001 01010100 01010100 01000101 01010010 01001110 01001101 01000001 01001011 01000101 01010010 00101100 00100000 01010000 01010010 01000101 01010011 01010011 01010101 01010010 01000101 00100000 01000011 01000001 01010011 01010100 |
HTML Code (1990) (references)P A T T E R N M A K E R ,   P R E S S U R E   C A S T |
ISO 10646 (1991-1993) (references)0050 0041 0054 0054 0045 0052 004E 004D 0041 004B 0045 0052 002C 0050 0052 0045 0053 0053 0055 0052 0045 0043 0041 0053 0054 |
Encryption (beginner's substitution cypher): (references)5035545439524847354539521425052395353555239237355354 |
| 1. Orthography 2. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
