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Static mixer

A static mixer, tubular technology, applied in the direction of fluid mixers, mixers, chemical instruments and methods, etc., can solve the problem that static mixer sink marks cannot be prevented

Active Publication Date: 2014-06-18
MEDMIX SWITZERLAND AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Static mixers with geometry as in patent document EP1426099B1 cannot be prevented from having sink marks even at internal tool pressures greater than 1000 bar

Method used

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Embodiment Construction

[0044] exist figure 1A first embodiment of a static mixer according to the invention is shown in . The static mixer comprises a mounting body or device body 1 mounted in a not shown tubular housing which functions as the boundary of a mixing space 20 inside said tubular housing. The fluid to be mixed, usually consisting of at least two different components (or components), flows through the mixing space 20 . In most cases, the ingredient or ingredients are present in a fluid state or as a viscous substance, which includes, for example, pastes, adhesives, but also fluids containing medicaments used in the medical sector or for cosmetic use and food fluids. Such static mixers are also used in particular as disposable mixers for the mixing of hardened mixed products of flowable components, such as multi-component (or component) adhesives. Another preferred use is the mixing of casting compounds in the dental field.

[0045] The installation body 1 itself has no moving parts (...

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Abstract

The invention provides a method for manufacturing a static mixer in an injection process. The method comprises the following steps: a polymer melt containing a foaming agent is injected through the injection point and into the passage at an injection pressure of less than 500 bar. The passage is filled with the polymer melt and the polymer melt is allowed to at least partially foam in the passage. The ratio of the length of flow path to the height of flow path is >= 10. The static mixer comprises an installation body for installation into a tubular mixer housing of a static mixer. An injection molding tool is used for manufacturing a static mixer. The installation body is provided with a longitudinal dimension and a diameter. The ratio of longitudinal dimension to the diameter is >= 1. The installation body is at least partially made of foamed plastic. The ratio of the longitudinal dimension to the wall thickness is >= 10, and the ratio of length of the flow path to the wall thickness is >= 10.

Description

[0001] This application is a divisional application of an invention patent application with the original application date of October 19, 2009, application number 200910179797.5, and the invention title "Static Mixer". technical field [0002] The invention relates to a static mixer made of plastic comprising a mounting body for mounting in a tubular housing of the mixer. The mounting body has a longitudinal axis aligned in the direction of fluid flow into the mounting body such that the mounting body spans the mixing space. The mixing space has, in a plane perpendicular to the longitudinal axis, a cross-sectional flow area (or area) which substantially corresponds to the cross-sectional flow area of ​​the mixer tubular housing. The mounting body includes wall members for dividing and / or deflecting the fluid flow in a direction offset from the longitudinal axis. The invention also relates to a method for producing such a static mixer. Background technique [0003] Such a st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F5/06
CPCB01F5/0615B01F5/0641B01F5/064B29C44/428B29C44/00B01F25/43141B01F25/4321B29C44/38B29C44/16B29C45/00B01F25/40
Inventor S.哈比比-奈尼
Owner MEDMIX SWITZERLAND AG