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Static-mixing lip for low-shear materials.


A new two-part static-mixing up developed by Westland Corp., Wichita, Kan., reportedly creates gentler or less chaotic mixing than a typical static mixer A static mixer is a device for blending (mixing) two liquid materials. The device consists of mixer elements contained in a cylindrical (tube)or squared housing. The static mixer elements consist of a series of baffles that are made from metal or a variety of plastics. . It works like a short, fixed barrier section downstream of the barrel end cap. The cylindrical mixer has alternating helical helical /hel·i·cal/ (hel´i-k'l) spiral (1).

hel·i·cal
adj.
1. Of or having the shape of a helix; spiral.

2. Having a shape approximating that of a helix.
 lands that seal against the casing, and notched barrier lands that are offset from the casing. As melt enters, it is directed by the helical lands over the barrier lands and through the notches. These alternating, converging inlet channels, then diverge diverge - If a series of approximations to some value get progressively further from it then the series is said to diverge.

The reduction of some term under some evaluation strategy diverges if it does not reach a normal form after a finite number of reductions.
 as they reach the outlet channels. The newly patented device (#7,032,843, issued Apr. 25, 2006) is also reportedly easier to clean than a typical static mixer. Westland will show it for the first time at NPE NPE NullPointerException (Java)
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 in Chicago this month. Tel: (316) 721-1144 * PTDirect: 243ZH

[ILLUSTRATION OMITTED]
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Title Annotation:KEEPING UP WITH: Extrusion
Publication:Plastics Technology
Geographic Code:1USA
Date:Jun 1, 2006
Words:133
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