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CRD barrier

Figure 8.63 Standard barrier flight (left) vs. CRD barrier flight (right)... Figure 8.63 Standard barrier flight (left) vs. CRD barrier flight (right)...
The barrier screw geometry is shown in Fig. 8.108. The Maddock screw has a fluted mixing element similar to the one shown in the bottom of Fig. 8.108. The CRD screw is a screw with a distributive mixing element that is based on elongational flow rather than shear flow [128-131]. [Pg.632]

The MW results for the Maddock screw, general-purpose screw, and barrier screw do not differ markedly for each barrel temperature profile, the CRD screw achieved the best MW results, resulting in the highest MW values. In all trials with the CRD screw the MW values were above the specification limit. As a result, this screw was selected for the production process. Figure 8.115 shows a photograph of a slotted CRD mixer. [Pg.633]

See other pages where CRD barrier is mentioned: [Pg.581]    [Pg.581]    [Pg.582]    [Pg.582]    [Pg.581]    [Pg.581]    [Pg.582]    [Pg.582]    [Pg.130]    [Pg.94]    [Pg.586]   


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