Patent · US Expired

Process for forming a fiber or yarn contacted element of a textile machine

US4928477A · kind A · utility

10Cited by

4References

7Claims

0Family size

Assignee

W. Schlafhorst AG & Co. · DE

Inventors

Siegfried Kalitzki · Würselen, DE
Josef Peters · Lambsheim, DE
Gottfried Schurmann · Scheinfeld, DE

Key dates

Filing date	Mar 30, 1989
Grant date	May 29, 1990
Priority date	—
Expiry date	Mar 30, 2009

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01H4/10
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A fiber or yarn contacted element of a textile machine, such as a rotor of an open-end spinning machine or the like, has, at the fiber or yarn coating surface, a body portion of steel, a boronized layer formed on the body portion, an alpha-iron layer formed on the boronized layer and a nickel coating layer. A process for producing a fiber or yarn contacted element of a textile machine includes boronizing a steel body portion to form a boronized surface thereon, heating the steel body portion in an atmosphere including nitrogen to methanol to produce an alpha-iron layer, quenching and heating the steel body portion and applying a nickel coating thereto.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.