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CHANNEL GEOMETRY FOR PROMOTING AT LEAST ONE OF A UNIFORM VELOCITY PROFILE AND A UNIFORM TEMPERATURE PROFILE FOR AN ANNULAR OR PART-ANNULAR MELT FLOW
CHANNEL GEOMETRY FOR PROMOTING AT LEAST ONE OF A UNIFORM VELOCITY PROFILE AND A UNIFORM TEMPERATURE PROFILE FOR AN ANNULAR OR PART-ANNULAR MELT FLOW
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机译:用于促进环形或部分环形熔体流动的均匀速度分布和温度分布的至少一个的通道几何
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摘要
A hot runner nozzle includes a nozzle body, an annular outlet channel in the nozzle body, a source channel upstream of the annular outlet channel in the nozzle body, and a flow transition channel in the nozzle body. The flow transition channel interconnects the source channel with a part-annular segment of the annular outlet channel. The flow transition channel widens in a downstream direction and has a non-uniform cross-sectional channel thickness in either or both of the longitudinal (downstream) and transverse directions. The geometry of the flow transition channel may promote at least one of a uniform velocity profile and a uniform temperature profile in a generated annular or part-annular melt flow.
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