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the cycle time, which limits it to short runs, but to offset this is the low cost of the mold. They are usually single cavity molds, but may be multi-cavity if the molding is quite small. They are usually only of a two or three plate design because of the simplicity of the parts. If only a short run is required then the molds may be made from
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In injection molding, hand molds refer to simple molds that have no provision for heat, cooling, or ejection. This means when a hand mold is cycled universal heating plates are required to warm the molds and the molds must be removed after each cycle to remove the moldings. This drastically increases
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In this method, the type was made by punching a letter-shaped cavity in a matrix made of some soft metal (typically copper). Then this matrix would be held in the lower part of the mold, the upper part would close on it, and molten
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for breech loading weapons) are custom made for each weapon. Anywhere from one to six cavities are carved into the molding block, along with appropriate gates and
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industries. It is made by a hand injection molding machine. It is a simple machine which contains a barrel, handle, nozzle, mold and heaters.
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and small custom ammunition loading communities. In a tradition dating back to the beginning of firearms, molds matched to the
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would be poured into the cavity. Using the hand mold, the printer could quickly make any additional type he might need.
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In the printing industry, a hand mold specifically refers to a two-part mold used for
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219:. NEI Handtools, Inc. 2004. Archived from the original on 2011-04-30
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217:"Bullet Molds--General Information and Product Data"
66:In particular, it refers to a system for casting
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158:, vol. 2, Houghton, Mifflin, p. 1057.
35:used for low quantity work. It is used in the
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172:John Wiley & Sons, Inc. 1998. (pp 58–69)
16:Tool used in injection molding and printing
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257:. Lee Precision, Inc. 1993. Archived from
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155:Knight's American mechanical dictionary
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23:Two bullet molds for lead casting
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294:This metalworking article is a
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152:Knight, Edward Henry (1876),
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298:. You can help Knowledge by
170:A History of Graphic Design.
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189:Harper, Charles A. (2000),
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252:"Bullet Mold Instructions"
236:: CS1 maint: unfit URL (
192:Modern plastics handbook
115:remain popular with the
345:Casting (manufacturing)
59:. Inside the mold is a
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355:Printing terminology
365:Metalworking stubs
72:Johannes Gutenberg
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350:Plastics industry
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202:978-0-07-026714-5
168:Meggs, Philip B.
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360:Typography
339:Categories
268:2011-03-25
223:2011-03-25
139:References
80:type metal
55:hand-made
127:(and the
29:hand mold
232:cite web
93:aluminum
47:Printing
41:printing
129:chamber
53:casting
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133:sprues
101:steels
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262:(PDF)
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111:Hand
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