WO2014177611A1 - Use of nickel-chromium alloy in heat treatment - Google Patents
Use of nickel-chromium alloy in heat treatment Download PDFInfo
- Publication number
- WO2014177611A1 WO2014177611A1 PCT/EP2014/058819 EP2014058819W WO2014177611A1 WO 2014177611 A1 WO2014177611 A1 WO 2014177611A1 EP 2014058819 W EP2014058819 W EP 2014058819W WO 2014177611 A1 WO2014177611 A1 WO 2014177611A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cover
- sheet
- heat treatment
- fibers
- parts
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 32
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 116
- 238000000034 method Methods 0.000 claims abstract description 27
- 239000011651 chromium Substances 0.000 claims abstract description 25
- 239000004744 fabric Substances 0.000 claims abstract description 22
- 239000011521 glass Substances 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims description 29
- 238000012544 monitoring process Methods 0.000 claims description 7
- 230000000704 physical effect Effects 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 5
- 229920000914 Metallic fiber Polymers 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000000956 alloy Substances 0.000 description 23
- 229910045601 alloy Inorganic materials 0.000 description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 19
- 229910018487 Ni—Cr Inorganic materials 0.000 description 16
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 16
- 229910052804 chromium Inorganic materials 0.000 description 13
- 229910052742 iron Inorganic materials 0.000 description 13
- 229910052759 nickel Inorganic materials 0.000 description 13
- 229910052750 molybdenum Inorganic materials 0.000 description 7
- 239000011572 manganese Substances 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000788 chromium alloy Substances 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
- C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
- C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
- C03B35/18—Construction of the conveyor rollers ; Materials, coatings or coverings thereof
- C03B35/181—Materials, coatings, loose coverings or sleeves thereof
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B40/00—Preventing adhesion between glass and glass or between glass and the means used to shape it, hold it or support it
- C03B40/005—Fabrics, felts or loose covers
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0025—Supports; Baskets; Containers; Covers
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/28—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity for treating continuous lengths of work
Abstract
The invention relates to use of selected materials in systems for heat treatment, various forms of such material, related systems and methods for determining such materials. In particular the invention relates to the use of a cover of a nickel-chromium alloy material with a Cr content of more than 19 w% (percent by weight) for one or more parts within a system suited for heat treatment. The cover can be made as a fabric. The material is used as cover for rotating elements supporting a sheet of material like glass or as cover for the element used to bring the sheet of material in the required shape.
Description
USE OF NICKEL-CHROMIUM ALLOY IN HEAT TREATMENT
Field of the invention
The invention relates to use of selected materials in systems for heat treatment, various forms of such material, related systems and methods for determining such materials.
Background of the invention
It is known that within systems for heat treatment the underlying element of such systems are subject to high temperature conditions and therefore need to be replaced frequently and/or at least require some type of protective cover.
Various materials are used for such protective cover.
However still the replacement of either the underlying elements and/or said protective covers needs to happen too frequently, leading to a cost and/or shutdown inefficiencies in the production lines.
Aim of the invention
It is the aim of the invention to alleviate the mentioned problem by providing a proper selected material class, and useful forms of said material to make such covers and related systems but also to provide the necessary analysis techniques required to define and select appropriate materials.
Summary of the invention
In a first aspect of the invention the use of a cover of a nickel-chromium alloy material with a Cr content of more than 19 w% (percent by weight) for one or more parts within a system suited for heat treatment is provided. Accordingly the invention provides the use of a cover made entirely or parts thereof of a nickel-chromium alloy material with a Cr content of more than 19 w%
(percent by weight) in the heat treatment of an object, whereby said object is covered in part or entirely by said cover .
In an embodiment thereof the cover is made of a (knitted, woven or fiber web) fabric, made of the material fibers. In particular embodiments, the cover is made of a fabric made only of fibers of the material.
The present inventor has found that the nickel-chromium alloys described herein are particularly useful for use in the heat treatment of an object, due to their excellent heat
resistance. More particularly, a Ni-Cr alloy as described herein can be (a) heat resistant (retaining its strength, in particular tensile strength and/or does not degrade) at temperatures higher than 700, preferably 750 degrees Celsius for a duration of at least 1 , preferably 5, even more preferably 10 days and (b) retaining its physical properties (not being fragile) after (one or more) temperature decrease(s) below 400 degrees Celsius.
In one embodiment thereof the use of the covered object in glass processing, in particular vehicle windows manufacturing is presented wherein either said material is used as cover for one or more rotating elements supporting a sheet of material when being heat treated and/or said material is used as a cover for the element used to bring the sheet of material in the required shape during heat treatment.
In an embodiment of the invention the material is further selected to be available as a fiber, more in particular the cover is then a (knitted, woven or fiber web) fabric, made of the material fibers, to protect the sheet of material from damage (due to particles) when contacting the supporting or shaping element.
In a preferred embodiment the material has a Cr content of more than 18 w%, preferably more than 19 w%, and even more preferably more than 20 w%; and a Ni content of equal or larger than 19 w%.
In a further preferred embodiment the material has a Cr content of more than 19 % by weight and a minimum content of Fe of 47 % by weight.
In a second aspect of the invention a system, suited for heat treatment of a sheet of material is provided, the system comprising a plurality of (rotating) elements for supporting said sheet of material, wherein one or more (or even substantially all in the parts of the system which are subjected to temperatures higher than 700, preferably 750 degrees Celsius) of said rotating elements are covered by a material as described in the first aspect of the invention.
In a third aspect of the invention a fabric, made of fibers of a material as described in the first aspect of the invention and suitable for uses as described herein above, is provided.
In a fourth aspect of the invention a cover is provided, made of the fabric as described in the above aspects of the invention, suitable to cover a rotating element.
In a fifth aspect of the invention a cover is provided, made of the fabric described in the above aspects of the invention, suitable to cover an element, more particularly an element used for shaping a sheet of material.
In a sixth aspect of the invention a (computer implemented) method is provided for determining suitable materials for one or more parts within a system for heat treatment of an
object, the method comprising monitoring temperature evolution of said one or more parts in terms of temperature cycles, and selecting for said one or more parts a cover, made of a material which is heat resistant (retaining its strength) and (b) retains its physical properties (not being fragile) under such temperature cycles. In particular embodiments, said temperature cycles comprise temperatures higher than 700, preferably 750 degrees Celsius for a duration at least 1 , preferably 5, even more preferably 10 days optionally preceded by or followed by(one or more) temperature decrease(s) below 400 degrees Celsius; In a preferred embodiment, the material selected is a material such as described in the above aspects of the invention, more particularly a nickel-chromium alloy material with a Cr content of more than 19 w% (percent by weight).
Detailed description of the invention
The invention relates to the use of selected materials in systems for heat treatment, various forms of such material, related systems and methods for determining and selecting such materials; the methods envisaged herein require understanding of the heat dynamics within systems for heat treatment of objects and selection of materials while acknowledging the various aspects thereof such as their heat properties but also how the material can be provided in order to make a suitable product. Preferably (semi-) automated methods are used for determining such heat dynamics (as part of the selection process) and/or (semi-) automated methods are used for follow up of such systems when provided with the materials, in order to decide for replacement.
The invention relates to systems for heat treatment, more in particular those wherein one or more underlying elements of such systems are subject to high temperature conditions, and the invention aims to reduce the need of frequent replacement of these elements and/or the protective covers used for these elements by providing a properly selected material class, and useful forms of said material to make such covers and related systems. The invention further aims to provide the necessary analysis techniques required to define and select appropriate materials for use in these systems and to follow-up the material when used in these systems.
It is generally noted that the ability of a material to be resistant to elevated temperatures as such does not predict its ability to be resistant to thermal cycles, i.e. significant changes in temperature. It has surprisingly been found for the materials described herein that they can also handle thermal cycles., More particularly the finding that ther ability to handle thermal cycles is
substantially better than for comparable alloy materials with a slightly lower capability to handle high temperatures is remarkable.
The invention relates to the use of a nickel-chromium (Ni-Cr) alloy material with a Cr content of more than 19 w% (percent by weight) as cover for one or more parts within a system suited and used for heat treatment. An alloy is a mixture or metallic solid solution composed of two or more elements. More particularly, the term "nickel-chromium alloy" as used herein refers to an alloy comprising Ni and Cr as components.
In preferred embodiments, the Ni-Cr alloy comprises at least 19 w% Cr and at least 45 w% iron (Fe), more preferably at least 47 w% Fe, and most preferably at least 50 w% Fe. Preferably, the sum of Ni, Cr, and Fe forms at least 95 w% of the Ni-Cr alloy.
Optionally, the Ni-Cr alloy may comprise other elements than Ni, Cr, and Fe. More particularly, the Ni-Cr alloy may comprise one or more elements selected from carbon (c), manganese (Mn), phosphorus (p), sulfur (s), silicon (Si), and molybdenum (Mo). Preferably, the sum of elements other than Ni, Cr, and Fe form less than 5w% of the Ni-Cr alloy. In certain embodiments, the alloy comprises at most 0.25 w% C, at most 2.0 w% Mn, at most 0.045 w% P, at most 0.030 w% S, and at most 1.50 w% Si. In certain embodiments, the alloy may comprise at least 3 w% Mo. However, in preferred embodiments, the alloy comprises less than 5 w% Mo, less than 3 w% Mo, less than 1 w% Mo, or no significant amounts of Mo (less than 0.01 w%).
In preferred embodiments, the Ni-Cr alloy comprises at least 10 w% Ni, preferably at least 12 w% Ni. It is further preferred that the Ni-Cr alloy does not comprise more than 22 w% Ni, and not more than 26 w% Cr.
In specific embodiments, the Ni-Cr alloy may comprise at least 19 w% Cr, at least 19 w% Ni, and balance Fe; preferably at least 47 w% Fe, more preferably at least 50 w% Fe. In further embodiments, the Ni-Cr alloy may comprise between 19 w% and 26 w% Cr; between 19 w% and 22 w% Ni; and at least 47 w% Fe, preferably at least 50 w% Fe. In yet further embodiments, the Ni-Cr alloy may comprise between 24 w% and 26 w% Cr; between 19 w% and 22 w% Ni; and at least 50 w% Fe.
In preferred embodiments, the Ni-Cr alloy may comprise:
- between 19 w% and 26 w% Cr; preferably between 24 w% and 26 w% Cr
- between 19 w% and 22 w% Ni;
optionally, up to 5% of one or more elements other than Cr, Ni, and Fe; preferably selected from C, Mn, P, S, Si, and Mo; more preferably selected from C, Mn, P, S, and Si; and
- balance Fe.
As described above, the alloy may comprise other compoents than Ni and Cr, preferably metals. In particular embodiments, the Ni-Cr alloy material further comprises Iron. More particularly, the amount of iron in the Ni-Cr alloy is in the range of 40-70 w%, more preferably between 47 and 62 w%, even more preferably between 50 and 62 w%.
In preferred embodiments, the alloy is selected to be available as staple fiber yarns, spun yarn or continuous filament yarns, more in particular with an equivalent diameter of the cross section of the fiber being less than 50μηι, preferably less than 25μηι, such as^m or less.
The invention relates to the use of the above-described material in a cover for at least part of a system used in heat treatment of objects. Typically the cover is a (knitted, woven or fiber web) fabric, made of the material fibers. In particular embodiments, the fabric is made of fibers of the material envisaged herein in combination or mixture with other metallic fibers or non-metallic fibers (silica fibers and carbon fibers). In further particular embodiments, the fabric is made only of fibers of the materials described herein.
The application further provides the use of a selected nickel-chromium alloy material with a Cr content of more than 19 w% as cover for one or more parts within a system suited for heat treatment. In particular embodiments the cover is made of a (knitted, woven or fiber web) fabric, made of the material fibers. In this way, a soft material is obtained, which can be beneficial for the system and/or (glass) processing application. In particular embodiments, the material is selected to be (a) heat resistant (retaining its strength) at temperatures higher than 700, preferably 750 degrees Celsius for a duration of at least 1 day, preferably 5 days, even more preferably 10 days and (b) retaining its physical properties (not being fragile) after (one or more) temperature decrease below 400 degrees Celsius.
In particular embodiments, the cover is made of a fabric of fibers consisting of the material as envisaged herein
The above describes temperature dynamics as found in systems for glass processing, in particular vehicle windows manufacturing, wherein either said material can be used as cover for one or more rotating elements designed to support a sheet of material when being heat treated;
additionally or alternatively said material can be used as a cover for the element used to bring the sheet of material in the required shape during heat treatment. As detailed above, for these applications, softness of the material may be required such that the material can be further selected to be available as a fiber. In particular embodiments, the cover as provided in these embodiments is then a (knitted, woven or fiber web) fabric, made of the material fibers. This allows to protect the sheet of material from damage (due to particles) when contacting the supporting or shaping element. In a preferred embodiment the material has a Cr content of more than 18.0 w% , preferably more than 19.0 w% and even more preferably more than 20.0 w%. Additionally or alternatively, the material has a Ni content of equal to or larger than 19.0 w%. In particular embodiments, the material has a Mo content of more than 3.0 w% Mo.
The invention further relates to systems, suited for heat treatment of a sheet of material, the system comprising a plurality of (rotating and/or linearly moving) elements for supporting said sheet of material, wherein one or more parts of (or even substantially all) of said elements, more particularly those which are subjected to temperatures higher than 700, preferably 750 degrees Celsius, are covered by a material as described. Preferably said material is provided as a cover, most preferably said cover is rather elastic to facilitate the covering process. The nature of the elements provided in the systems for heating objects such as glass objects as envisaged herein is not critical and examples are well known to the skilled person and include but are not limited to rollers for conveying glass sheets.
In particular embodiments as described above, the materials are provided as a fabric, made of fibers of a material as described herein above and are suitable for use in the systems described above. Most preferably a cover is provided, made of the fabric, suitable to cover a (rotating) element.
Methods, such as, but not limited to omputer implemented methods (and related computer programs and computer readable media storing such programs) are provided for determining suitable materials for one or more parts within a system suited for heat treatment. Such methods comprise monitoring temperature evolution of said one or more parts in terms of temperature cycles which are typically used in heat treatment of objects, and selecting for said one or more parts a cover, made of a material which is heat resistant (retaining its strength) and (b) retains its physical properties (not being fragile) under such temperature cycles. In particular embodiments, the temperature cycles comprise temperatures higher than 700, preferably 750 degrees Celsius for a duration of at least 1 , preferably 5, even more preferably 10 days optionally alternated with (one or more) temperature decrease to below 400 degrees Celsius; In
particular embodiments, the methods comprise selecting a material of a nickel-chromium alloy with a Cr content of more than 19 w% as described above.
In particular embodiments, the methods envisaged herein comprise monitoring temperature evolution of said system in different places, corresponding to different functional parts of the system, corresponding to different functional parts of the system.
Once suitable materials are identified (and provided on said parts), similar methods for follow-up of the processing and to decide when the materials and covers need replacement can be used. Such methods, typically involve loading on-line data of the temperature dynamics and comparing those with the temperature dynamic characteristics of the materials as selected. The above variety of aspects of the invention (use, materials, covers, systems and computer implemented methods off- and on-line) demonstrate the synergistic effect obtained by the invention, combining in-depth understanding (and capturing) of the temperature dynamics of the (glass) processing application at hand, temperature characteristics of materials on the one hand but also the further characteristics (such as their ability to be provided as a fiber and hence their ability to be used in a fabric for making the cover) enabling to satisfy further requirements for particular applications, such as softness of the obtained cover.
The materials provided by the invention as used during heat treatment do suffer from severe conditions which differ from place to place within a given system and, in addition, besides the severe heat treatment itself, are also subject to chemical interactions (invoked at such high temperatures). This implies that means for fastening the materials to the rotating elements may need to be provided. The invention also provides for methods which involve monitoring the material as described above at a plurality of distinct places or positions within a given system, these positions being related to the primary function of support and the secondary function of fastening. In particular embodiments, where the system is a system for heating glass sheets, the methods envisaged herein may comprise monitoring the system in different parts, one of which is located in a position on the element underneath where said sheet of glass would be provided and one other of said places being located nearby means for removably fixing said material to an element for conveying said glass sheet.
The invention thus further provides the use of said materials in combination with a proper fastening means, such as but not limited to a ring. The fastening means is made of a material which can be the same as or different from said cover material. More particularly the material of the fastening means is selected so as not to chemically interact with said cover, during said heat treatment.
Claims
1. Use of a nickel-chromium alloy material with a Cr content of more than 19 % by weight and a minimum content of Fe of 47 % by weight as a cover for one or more parts within a system suited for heat treatment.
2. The use of claim 1 , wherein the cover is made of a (knitted, woven or fiber web) fabric, made of the material fibers only or in combination with other metallic fibers or non- metallic fibers, such as silica fibers and carbon fibers.
3. The use of any of the preceding claims in glass processing, in particular vehicle windows manufacturing.
4. The use of any of the preceding claims, wherein said material is used as cover for one or more elements supporting a sheet of material when being heat treated.
5. The use of any of the preceding claims 1 to 4, wherein said material is used as a cover for an element used to bring the sheet of material in the required shape during heat treatment.
6. The use of any of the preceding claims wherein the material is provided as fabric made up of fibers.
7. The use of any of the preceding claims whereby the cover is a (knitted, woven or fiber web) fabric, made of the material fibers, to protect the sheet of material for damage (due to particles) when contacting the supporting or shaping element.
8. The use of any of the preceding claims, wherein the material has a Cr content of more than 19 % by weight, preferably more than 20 % by weight; and a Ni content equal to or larger than 19 % by weight.
9. A system, suited for heat treatment of a sheet of material, the system comprising a plurality of rotating elements for supporting said sheet of material, wherein one or more (or even substantially all in the places where temperatures higher than 700, preferably 750 degrees Celsius is achieved) of said rotating elements being covered by a material as described in any of the preceding claims.
10. A fabric, made of fibers of a material as described in any of the preceding claims.
1 1. A cover, made of the fabric of claim 10, suitable to cover a rotating element.
12. A cover, made of the fabric of claim 10, suitable to cover an element, used for shaping a sheet of material.
13. The use of the cover of claims 1 1 or 12, wherein said material is fastened to said elements by use of a fastening means.
14. A method for determining suitable materials for use as a cover for one or more parts within a system suited for heat treatment, the method comprising monitoring temperature evolution of said one or more parts in terms of temperature cycles, comprising temperatures higher than 700, preferably 750 degrees Celsius for a duration of at least 1 day, preferably 5 days, even more preferably 10 days and after (one or more) temperature decrease below 400 degrees Celsius; and selecting for said one or more parts a cover, made of a material being heat resistant (retaining its strength) and (b retaining its physical properties (not being fragile) under such temperature cycles.
15. The method of claim 14, wherein said material is a material as described in claims 1 to 8.
16. A method for determining suitable materials for covering one or more parts within a system suited for heat treatment, the method comprising monitoring temperature evolution of said one or more parts in terms of temperature cycles, comprising temperatures higher than 700, preferably 750 degrees Celsius for a duration of at least 1 day, preferably 5 days, even more preferably 10 days and after (one or more) temperature decrease below 400 degrees Celsius; and selecting for said one or more parts a cover, made of a material being heat resistant (retaining its strength) and (b retaining its physical properties (not being fragile) under such temperature cycles at a plurality of places within said system, wherein said material is used as cover for one or more rotating elements supporting a sheet of second (glass) material when being heat treated and wherein at least one of said placs is located underneath said sheet of second (glass) material and one other of said places being located nearby means for removably fixing said material to said rotating element.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1307721.9 | 2013-04-30 | ||
| GBGB1307721.9A GB201307721D0 (en) | 2013-04-30 | 2013-04-30 | Use of nickel-chromium alloy in heat treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014177611A1 true WO2014177611A1 (en) | 2014-11-06 |
Family
ID=48627015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2014/058819 WO2014177611A1 (en) | 2013-04-30 | 2014-04-30 | Use of nickel-chromium alloy in heat treatment |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB201307721D0 (en) |
| WO (1) | WO2014177611A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112292357A (en) * | 2018-06-11 | 2021-01-29 | 贝卡尔特公司 | Heat resistant spacer fabric |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5565013A (en) * | 1991-07-11 | 1996-10-15 | Saint-Gobain Vitrage International | Extensible knitted metal fabric covering for conveyor rollers in a glass heating furnace |
| EP0851195A1 (en) * | 1996-12-27 | 1998-07-01 | Kubota Corporation | Tire roller for transporting slabs |
| JPH1179766A (en) * | 1997-09-05 | 1999-03-23 | Tokyo Seiko Co Ltd | Metallic fiber knit for forming glass |
| JP2001164442A (en) * | 1999-12-03 | 2001-06-19 | Nippon Seisen Co Ltd | Heat-resistant fabric product |
| WO2011117048A1 (en) * | 2010-03-26 | 2011-09-29 | Nv Bekaert Sa | Hybrid sleeve with glass or ceramic fibres and metal fibres |
| EP2567945A2 (en) * | 2011-09-09 | 2013-03-13 | NV Bekaert SA | Fabrics for the production of mirrors |
-
2013
- 2013-04-30 GB GBGB1307721.9A patent/GB201307721D0/en not_active Ceased
-
2014
- 2014-04-30 WO PCT/EP2014/058819 patent/WO2014177611A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5565013A (en) * | 1991-07-11 | 1996-10-15 | Saint-Gobain Vitrage International | Extensible knitted metal fabric covering for conveyor rollers in a glass heating furnace |
| EP0851195A1 (en) * | 1996-12-27 | 1998-07-01 | Kubota Corporation | Tire roller for transporting slabs |
| JPH1179766A (en) * | 1997-09-05 | 1999-03-23 | Tokyo Seiko Co Ltd | Metallic fiber knit for forming glass |
| JP2001164442A (en) * | 1999-12-03 | 2001-06-19 | Nippon Seisen Co Ltd | Heat-resistant fabric product |
| WO2011117048A1 (en) * | 2010-03-26 | 2011-09-29 | Nv Bekaert Sa | Hybrid sleeve with glass or ceramic fibres and metal fibres |
| EP2567945A2 (en) * | 2011-09-09 | 2013-03-13 | NV Bekaert SA | Fabrics for the production of mirrors |
Non-Patent Citations (1)
| Title |
|---|
| "Grade Data Sheet 310 310S 310H", 1 January 2011 (2011-01-01), XP055131372, Retrieved from the Internet <URL:http://www.atlassteels.com.au/documents/Atlas_Grade_datasheet_310_rev_Jan_2011.pdf> [retrieved on 20140724] * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112292357A (en) * | 2018-06-11 | 2021-01-29 | 贝卡尔特公司 | Heat resistant spacer fabric |
| US20210246583A1 (en) * | 2018-06-11 | 2021-08-12 | Nv Bekaert Sa | Heat resistant separation fabric |
| JP2021527763A (en) * | 2018-06-11 | 2021-10-14 | エヌブイ ベカルト エスエー | Heat resistant separation cloth |
| CN112292357B (en) * | 2018-06-11 | 2023-03-28 | 贝卡尔特公司 | Heat resistant spacer fabric |
| JP7335271B2 (en) | 2018-06-11 | 2023-08-29 | エヌブイ ベカルト エスエー | Heat-resistant separation cloth |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201307721D0 (en) | 2013-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MX351086B (en) | Steel sheet for hot stamping members and method for producing same. | |
| CA2944847C (en) | Austenitic stainless steel and method for producing the same | |
| BR112014019065A8 (en) | METHOD FOR PRODUCING A STRONG STEEL MATERIAL WITH SULFIDE STRESS FRACTURE RESISTANCE | |
| MX2017000496A (en) | Hot-rolled steel sheet and associated manufacturing method. | |
| MX367870B (en) | High magnetic induction oriented silicon steel and manufacturing method thereof. | |
| CN102741938B (en) | Method of heat-treating metal pipes for nuclear power plant | |
| MA39417A1 (en) | Double annealed steel sheet with high mechanical characteristics of resistance and ductility, method of manufacture and use of such sheets | |
| FI20120215A (en) | Ferritic stainless steel | |
| MX2021007215A (en) | Cold rolled and heat-treated steel sheet and method of manufacturing the same. | |
| IN2015DN00773A (en) | ||
| JP2013508542A5 (en) | ||
| MX2020005026A (en) | A method for the manufacturing of liquid metal embrittlement resistant zinc coated steel sheet. | |
| WO2014177611A1 (en) | Use of nickel-chromium alloy in heat treatment | |
| CN104278209B (en) | Purposes and chain link or chain assemblies for chain and the steel alloy of chain assemblies | |
| EP3212586B1 (en) | Use of alumina-chromium alloy in heat treatment | |
| DK176960B1 (en) | Temperature stable cast iron alloy and its use | |
| AU2015241412A1 (en) | Dual-phase stainless steel | |
| EP2731741B1 (en) | Steel mesh fabric for making a piece of garment | |
| BR112016030707B1 (en) | CENTRIFUGAL CASTING CYLINDER FOR HOT LAMINATOR | |
| MX2016012524A (en) | High-strength steel material having excellent fatigue characteristics. | |
| RU2430183C2 (en) | Heat-resistant cast iron alloy and use of above alloy | |
| MX2018006361A (en) | Grain boundary cohesion enhanced sulfide stress cracking (ssc)-resistant steel alloys. | |
| MX2018007201A (en) | Ferritic stainless steel for automotive exhaust system, having improved pitting corrosion resistance and condensate corrosion resistance, and method for manufacturing same. | |
| Lavrent’eva | New-generation fire-and heat-resistant textile materials for working clothes | |
| CN106011630A (en) | Automobile suspension spring steel with high fatigue strength and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14726541 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 15/02/2016). |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 14726541 Country of ref document: EP Kind code of ref document: A1 |