Mold heat-transfer device

The cut semifinished product is heated in a forced-air oven to a processing temperature of 230 °C, and placed in a compression mold by means of a transfer device. The semifinished product is formed into a structural component by means of extrusion at cavity pressures of up to 25 MPa. Depending on mold quality, the structural component must then be deflashed and cut with a punch to final contour. 

MAJOR APPLICATIONS Release agents, rubber molds, sealants and gaskets, surfactants, water repellents, adhesives, foam control agents, biomedical devices, personal care and cosmetics, dielectric encapsulation, glass sizing agents, greases, hydraulic fluids, heat transfer fluids, lubricants, fuser oil, masonry protectants, process aids. 

In mold design, the core is (1) a channel in a mold for circulation of heat transfer media or (2) a part of a complex mold that molds undercut parts. In the latter case the cores are usually withdrawn to one side before the main sections of the mold open (also called a core pin). Cores are usually withdrawn before the main sections of the mold are opened. A core drill is a device for making cooling channels in the mold. 

Peles et al. [22] investigated heat transfer and pressure drop phenomena over a bank of micro-pin fins in a micro-heat sink. The dimensionless total thermal resistance was expressed as a function of Re)molds number, Prandtl number and the geometrical configuration of the pin-fin microheat sink. They compared their theoretical model with their experimental results and concluded that very high heat fluxes can be dissipated at a low wall terr5>erature rise using a microscale pin-fin heat sink. Thus, forced convection over shrouded pin-fin arrays is a very effective cooling device. In many cases, the primary cause for the rise in wall temperature is the increase of the fluid tempera-... 

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