Treatment element for treating material in a multi-shaft worm machine and multi-shaft worm machine

摘要

A treatment element to treat material in a multi-shaft worm machine has an outer contour with at least one outer contour portion, the associated evolute of which is a quantity of at least three points, each of the points lying outside the longitudinal axis and within the outer radius of the treatment element and two respective adjacent points having a spacing from one another, which is less than half the core radius. The treatment element ensures high flexibility during the adjustment of shear and/or extensional flows on the material to be treated.

主权项

1. A treatment element for treating material in a multi-shaft worm machine, comprising
a longitudinal axis M, a respective core radius Ri having the longitudinal axis M as the centre point and an outer radius Ra, an outer contour A(φ) running about the longitudinal axis M, wherein
φ is the angle about the longitudinal axis M andRi≦DA(φ)≦Ra applies to a spacing DA(φ) of the outer contour A(φ) from the longitudinal axis M, wherein the outer contour A(φ) has at least one outer contour portion A(Δφ), which runs along an angle portion Δφ,
which has a continuously changing spacing DA(Δφ) from the longitudinal axis M, wherein Riwhich is a quantity of n points P(i) where i=1 to n and n≧3,wherein each of the points P(i) lies outside the longitudinal axis M and within the outer radius Ra, andwherein two respective adjacent points P(i) and P(i+1) have the spacing Δr(i) from one another, which is less than Ri/2.