Some stamped the shape into two halves of a split mold
A split mold
for forming, molding, or welding thermoplastic tubing extends through an RF coil for inductive heating.
The split mold
design allows direct access to the mold cavity making balloon removal simple.
Hot runner technology; split mold
kit (K2500); quick mold change kit(K3500) Hommer Tool & Mfg.
Hasco says it eliminates costly split mold
inserts by installing the tip first and the shaft afterward.
The preform, still on its core rod, is then indexed to a blow station where the preform is inflated against a split mold
The MH2 nozzles have two or four gates with tips that are fixed in a split mold
insert that allows the nozzle shaft to slide vertically to compensate for thermal expansion of the shaft.
Valves for split molds
, knockout, unscrewing threaded blow pins, parison spreaders, up/down movement of blow pins, etc.
With horizontally split molds
the casting size capacity is increased almost 50%.
Many applications utilize moving split molds
, which allow removal of molded parts by relieving deeply recessed areas (for deep blow ratios and part entrapment) by repositioning the mold slide and leaving a good radius on the deep area.
Table 2 shows the numbers for a ductile iron foundry using vertically split molds
, and compares them for two time periods - actual 1974 values and inflation adjusted values for 1995.
In the Shaw process, split molds
are made by pouring a refractory slurry over a prepared pattern.