Heat resistant separation fabric

Patent metadata

Field	Value
Publication number	US-2021246583-A1
Application number	US-201917049441-A
Country	US
Kind code	A1
Filing date	May 27, 2019
Priority date	Jun 11, 2018
Publication date	Aug 12, 2021
Grant date	—

Abstract

A heat resistant separation fabric for use as tool covering in the production of glass products at temperatures over 580° C., wherein the heat resistant separation fabric comprises fiber yarns, and wherein said fiber yarns comprise metal fibers out of first material containing: 18 to 21 weight percent Cr, 23 to 26 weight percent Ni, 5.5 to 7 weight percent Mo, and 40 to 50 weight percent Fe.C

First claim

1 . A heat resistant separation fabric for use as tool covering in the production of glass products at temperatures over 580° C., wherein the heat resistant separation fabric is made of fiber yarns, and wherein said fiber yarns comprise metal fibers out of a first material consisting of:
18 to 21 weight percent chromium,
23 to 26 weight percent nickel,
5.5 to 7 weight percent molybdenum,
40 to 50 weight percent iron,
optionally one or more than one of silicon, manganese, and copper, each in a range between 0.2 weight percent to 2 weight percent, and
optionally one or more than one of carbon, nitrogen, cobalt, magnesium, neodymium, phosphorus, sulphur, tin, titanium, vanadium and tungsten, each less than 0.15 weight percent.

2 . The heat resistant separation fabric as in claim 1 , wherein said first material contains 40 to 46 weight percent iron.

3 . The heat resistant separation fabric as in claim 1 , wherein said fiber yarns comprise carbon fibers or silica fibers.

4 . The heat resistant separation fabric as in claim 1 , wherein said heat resistant separation fabric consists out of fiber yarns out of said first material.

5 . The heat resistant separation fabric as in claim 1 , wherein said fiber yarns comprise fibers out of a second material.

6 . The heat resistant separation fabric as in claim 5 , wherein said second material is a stainless steel alloy of the 300 series according to ASTM A313 including 316, 316L and 347, glass, ceramic and/or basalt.

7 . The heat resistant separation fabric as in claim 1 , wherein the equivalent diameter of said fiber yarns is 12 μm.

8 . The heat resistant separation fabric as in claim 1 , wherein said fiber yarns are spun yarns.

9 . The heat resistant separation fabric as in claim 1 , wherein said heat resistant separation fabric is a sleeve for covering a roller.

10 . The heat resistant separation fabric as in claim 1 , wherein said heat resistant separation fabric is a knitted, a woven or a braided fabric.

11 . The heat resistant separation fabric as in claim 1 , wherein said heat resistant separation fabric is a felt or a tape, e.g. quench tape.

12 . The heat resistant separation fabric as in claim 1 , wherein the Limited Oxygen Index according to ISO 4589-2 of said heat resistant separation fabric is more than 45 vol % oxygen.

13 . A spun fiber yarn, comprising fibers out of alloy consisting of:
18 to 21 weight percent chromium, 23 to 26 weight percent nickel, 5.5 to 7 weight percent molybdenum, 40 to 50 weight percent iron, and optionally one or more than one of silicon, manganese, and copper, each in a range between 0.2 weight percent to 2 weight percent, and optionally one or more than one of carbon, nitrogen, cobalt, magnesium, neodymium, phosphorus, sulphur, tin, titanium, vanadium and tungsten, each less than 0.15 weight percent.

14 . A method of using a heat resistant separation fabric as in claim 1 , comprising the step of covering tooling in glass production with the heat resistant separation fabric;
wherein in use the temperature of the heat resistant separation fabric is higher than 580° C.; and wherein the tooling covered with the heat resistant separation fabric is brought in contact with glass panels.

15 . The heat resistant separation fabric as in claim 2 , wherein said fiber yarns comprise carbon fibers or silica fibers.

16 . The heat resistant separation fabric as in claim 2 , wherein said heat resistant separation fabric consists out of fiber yarns out of said first material.

Assignees

• Bekaert Sa Nv

Inventors

• Vleurinck Jos
• De Ridder Frank
• Vergote Véronique
• De Bruycker Ruben
• De Baerdemaeker Jérémie

Classifications

• D03D1/0035

  Protective fabrics · CPC title

• D03D15/513 Primary

  heat-resistant or fireproof · CPC title

• D04C1/02

  made from particular materials · CPC title

• D10B2101/12

  Carbon; Pitch · CPC title

• C22C38/44 Primary

  with molybdenum or tungsten · CPC title