Mold Core

Mold Core

 

the removable part of a casting mold used in the foundry industry; it shapes mainly the interior cavities of the casting. When the configuration of the casting model hinders its removal from the casting mold, the mold core is also used to shape the exterior parts of the casting. Mold cores have core prints, which are mounted on the supporting surfaces of the mold. Mold cores are produced in core machines from special core sand mixes, with subsequent drying or hardening, and also directly in core boxes.

References in periodicals archive ?
Secured with circular plastic chairs, the hoops are placed manually on base rings and at specified mold core points.
"The heat had to be removed from that precise location, but the ejector design did not allow for the cooling line to reach that deep into the mold core," explains Dr.
Montes de Oca Balderas, Steiner and Eichler developed a special mold for injection molding a catheter, in which the melt is injected into a cavity with moveable mold core and a moveable tip.
The several nickel SMMs with the convex half-circular microchannels were assembled into a mold core. Two flat SMMs, which were produced by a precision machining, were also inserted at both sides of the assembled nickel SMMs for the formation of two reservoirs as mentioned earlier.
Core prints also must allow for the thickness of the mold core coating and ensure adequate core print clearances.
Ezell Precision Tool Company has launched a new mold core and cavity repair service that refurbishes damaged parts.
Papers address the reliability of experts and expert systems, measurement of scale-induced fatigue behavior for railway axles, deformation of the injection mold core, modeling of fatigue crack growth based on two cyclic plasticity models, mechanical fatigue life estimations for pistons, workflow modeling methods for collaborative product development, functional evolution process modeling and management for conceptual product design, damage analysis of glass-to-metal diffusion welded joints, delivery of a quality product in a value chain, and a method of fuzzy probability using a small sample.
The most complex conformal channels that Bastech has built so far were done this year for an in-house promotional product--hot or cold drink "Sleevz." The deep mold core is cooled by two intertwined helical flow channels with X-shaped cross sections for even more surface area than triangles.
The vent design inside the mold is very important in CIM; however, in EGAIM, the sealing inside the mold core side is necessary to prevent gas leakage.
The mold has an outer mold assembly enclosing an inner mold core assembly.
poured Mold Core Pouring A535 N5136 11 424-509 302-446 1,256-1,263 N5171 13 383-464 284-446 1,256-1,301 N5188 5 329-401 248-437 1,252-1,299 N5235 10 374-478 293-446 1,250-1,260 N5147 10 374-518 293-428 1,261-1,292 A206 N5137 11 356-451 320-446 1,283-1,301 N5201 7 378-500 293-500 1,283-1,301 Table 5.
and [S.sub.[rho]] is an additional polymer velocity source term for the nodes on the mold core/polymer melt interface that describes movement of the mold core: