EP2731741A2 - Steel mesh fabric for making a piece of garment - Google Patents

Steel mesh fabric for making a piece of garment

Info

Publication number
EP2731741A2
EP2731741A2 EP11732441.8A EP11732441A EP2731741A2 EP 2731741 A2 EP2731741 A2 EP 2731741A2 EP 11732441 A EP11732441 A EP 11732441A EP 2731741 A2 EP2731741 A2 EP 2731741A2
Authority
EP
European Patent Office
Prior art keywords
weight
content
rings
steel
garment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11732441.8A
Other languages
German (de)
French (fr)
Other versions
EP2731741B1 (en
Inventor
Olivier Husson
Xavier BOILLOT
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell Safety Products Franche Comte SAS
Original Assignee
Honeywell Safety Products Franche Comte SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=44628504&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2731741(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Honeywell Safety Products Franche Comte SAS filed Critical Honeywell Safety Products Franche Comte SAS
Publication of EP2731741A2 publication Critical patent/EP2731741A2/en
Application granted granted Critical
Publication of EP2731741B1 publication Critical patent/EP2731741B1/en
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F31/00—Making meshed-ring network from wire
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/04—Aprons; Fastening devices for aprons
    • A41D13/043—Aprons resistant to mechanical aggressions, e.g. butcher's aprons
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D19/00—Gloves
    • A41D19/015—Protective gloves
    • A41D19/01505—Protective gloves resistant to mechanical aggressions, e.g. cutting. piercing
    • A41D19/01511—Protective gloves resistant to mechanical aggressions, e.g. cutting. piercing made of wire-mesh, e.g. butchers' gloves
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/24—Resistant to mechanical stress, e.g. pierce-proof
    • 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
    • C21D9/0087—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for chains, for chain links
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0442—Layered armour containing metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0492—Layered armour containing hard elements, e.g. plates, spheres, rods, separated from each other, the elements being connected to a further flexible layer or being embedded in a plastics or an elastomer matrix
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D2500/00—Materials for garments
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite

Definitions

  • the present invention relates to a piece of protective garment made from metal mesh or chain mail, i.e. from a flexible fabric or web made of metal rings interlinked, in particular steel rings.
  • a protective garment such as a glove, an apron, a vest or the like, or a part of such a garment, from chain mail.
  • a piece of garment is used in certain industries (notably the meat industry) or for the protection of persons against projectile (bullet, etc.) or knife attacks, because of their intrinsic qualities of cut or perforation resistance.
  • These mail fabrics consist of a lattice of interlocking metal rings which, conventionally, have an internal diameter of about 2.9 to 3 mm, an outer diameter of about 4 mm and are made from a stainless steel wire 0.5 to 0.55 mm in diameter.
  • Using wires of 0.55 mm gives good protection against perforation but unfortunately the protective garment obtained is heavy and uncomfortable.
  • products made with wires of 0.5 mm allow decreasing the weight by 20% but also decrease the resistance to perforation to a level unacceptable for suitable body protection.
  • FR 2898249 it has been proposed to produce the chain mail fabric with rings that have an internal diameter of between 3 and 3.2 mm and are made with a wire having a diameter less than 0.45 mm.
  • the combination of these structural / dimensional (large-diameter inner ring and using a small diameter wire) is supposed to produce a coat of mail fabric with significantly improved flexibility.
  • FR-2898250 discloses a method for obtaining hard steel as a base material for making the steel rings, of structurally hardened metal, namely metal presenting in a certain state relatively low strength and hardness characteristics and, in any case, compatible with the steel ring cutting and shaping operations (and possibly the metal web forming operation) and supposedly presenting, after a heat treatment, higher strength characteristics, especially higher than those compatible with the aforementioned cutting/shaping (and possibly forming) operations.
  • the heat treated web is possibly not totally in the form that is used for making the final garment.
  • the corresponding web is finalized by any technique appropriate to the strength and hardness of the metal rings.
  • the steel attaching rings can be made of a conventional stainless steel the properties of which satisfy to the standards in force and which can be bent without being dominantly harmful to the strength of the web assembly.
  • the steel is subjected to a mechanical deformation/elongation, such as kneading, which enables obtaining a work hardening of the steel to approach the shaping capability limits of the steel elements (according to the available equipments and techniques). This particularity enables optimizing the later heat treatment to obtain the highest possible strength and hardness characteristics.
  • An embodiment of the invention comprises chain mail fabric for protective piece of garment made of a mesh of interlocking rings which rings have an external diameter of between 3.98 and 4.02 mm and are made with a wire whose diameter is between 0.47 and 0.52 mm exhibiting a tensile strength between about 1200 and 1500 N/mm 2 .
  • An embodiment of steel comprising the above specified composition yields a wire of high tensile strength without the need for thermal treatment.
  • the wires were processed according to a conventional method in web machines to form mail fabric which was found to be comfortable, with good protection properties against perforation, and not too heavy.
  • the pieces of garment made according to the invention can be gloves, sleeves, aprons, chasubles, jackets, etc. If necessary, some parts of the protective garments can be made in other material, according to the level of protection required for the different parts of the garment. For example, a jacket can be made with a body according to the invention and sleeves made from titanium in order to have a lighter jacket.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Ceramic Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Emergency Lowering Means (AREA)
  • Woven Fabrics (AREA)
  • Ropes Or Cables (AREA)

Abstract

Fabric for protective piece of garment (glove, sleeve, apron, chasuble, jacket) comprising a mesh of interlocking rings which rings have an external diameter of between 3.98 and 4.02 mm and are made with a wire whose diameter is between 0.47 and 0.52 mm exhibiting a tensile strength between about 1200 and 1500 N/mm2. An embodiment of the wire comprises steel having an austeno-ferritic structure comprising Fe with: -a C content not higher than 0.03 % by weight -a Mn content not higher than 2.00% by weight -a Si content not higher than 0.75% by weight -a S content not higher than 0.01% by weight -a P content not higher than 0.030% by weight -a Ni content of between 4.50% by weight and 6.50% by weight -a Cr content of between 21 % by weight and 23 % by weight -a Mo content of between 2.50% by weight and 3.50% by weight -a N content of between 0.15% by weight and 0.20% by weight the balance being substantially Fe and incidental impurities.

Description

Steel mesh fabric for making a piece of garment
The present invention relates to a piece of protective garment made from metal mesh or chain mail, i.e. from a flexible fabric or web made of metal rings interlinked, in particular steel rings.
It is well known to make a protective garment, such as a glove, an apron, a vest or the like, or a part of such a garment, from chain mail. Such a piece of garment is used in certain industries (notably the meat industry) or for the protection of persons against projectile (bullet, etc.) or knife attacks, because of their intrinsic qualities of cut or perforation resistance.
These mail fabrics consist of a lattice of interlocking metal rings which, conventionally, have an internal diameter of about 2.9 to 3 mm, an outer diameter of about 4 mm and are made from a stainless steel wire 0.5 to 0.55 mm in diameter. Using wires of 0.55 mm gives good protection against perforation but unfortunately the protective garment obtained is heavy and uncomfortable. On the other hand, products made with wires of 0.5 mm allow decreasing the weight by 20% but also decrease the resistance to perforation to a level unacceptable for suitable body protection.
According to FR 2898249, it has been proposed to produce the chain mail fabric with rings that have an internal diameter of between 3 and 3.2 mm and are made with a wire having a diameter less than 0.45 mm. The combination of these structural / dimensional (large-diameter inner ring and using a small diameter wire) is supposed to produce a coat of mail fabric with significantly improved flexibility.
Another improvement proposed concerned the steel used for making the rings. Actually, the possibility of using very hard and very strong steel was thought to be limited by the web making techniques, especially the necessary operations of metal particle cutting, drawing, forming, bending and/or welding. If used, very hard and very strong metals would enable obtaining webs having higher strength and hardness properties than conventional webs, or having similar properties, but with a lighter weight because a smaller thickness would be used.
FR-2898250 discloses a method for obtaining hard steel as a base material for making the steel rings, of structurally hardened metal, namely metal presenting in a certain state relatively low strength and hardness characteristics and, in any case, compatible with the steel ring cutting and shaping operations (and possibly the metal web forming operation) and supposedly presenting, after a heat treatment, higher strength characteristics, especially higher than those compatible with the aforementioned cutting/shaping (and possibly forming) operations.
The heat treated web is possibly not totally in the form that is used for making the final garment. In this case, the corresponding web is finalized by any technique appropriate to the strength and hardness of the metal rings. For example, the steel attaching rings can be made of a conventional stainless steel the properties of which satisfy to the standards in force and which can be bent without being dominantly harmful to the strength of the web assembly. Optionally, before the steel particles or the web are shaped, the steel is subjected to a mechanical deformation/elongation, such as kneading, which enables obtaining a work hardening of the steel to approach the shaping capability limits of the steel elements (according to the available equipments and techniques). This particularity enables optimizing the later heat treatment to obtain the highest possible strength and hardness characteristics.
However, it has been found that the above known techniques are not always satisfactory. Changing the conventional dimensions of the rings and the diameter of the steel wire also change the way the fabric behaves and this may be not satisfactory in some instances. As for the heating and mechanical treatment proposed, it has the disadvantage of making the process longer and also, in case the treatment is not correctly performed, the disadvantage of rendering the wire brittle or easily breakable.
Thus, the skilled man is still hoping for a solution to the problems mentioned.
An embodiment of the invention comprises chain mail fabric for protective piece of garment made of a mesh of interlocking rings which rings have an external diameter of between 3.98 and 4.02 mm and are made with a wire whose diameter is between 0.47 and 0.52 mm exhibiting a tensile strength between about 1200 and 1500 N/mm2.
This is much above the usual tensile strength of conventional wires of 0.5 mm in diameter, whose tensile strength is often comprised between 680 and 750 N/mm2. It is even more that the conventional wires of 0.55 mm in diameter, whose tensile strength is generally comprised between 900 and 1050 N/mm2. In accordance with an embodiment of the invention, such characteristics are exhibited by rings formed from an embodiment of steel having an austeno-ferritic structure. One such composition comprises Fe with:
-a C content not higher than 0.03 % by weight
-a Mn content not higher than 2.00% by weight
-a Si content not higher than 0.75% by weight
-a S content not higher than 0.01% by weight
-a P content not higher than 0.030% by weight
-a Ni content of between 4.50% by weight and 6.50% by weight -a Cr content of between 21 % by weight and 23 % by weight
-a Mo content of between 2.50% by weight and 3.50% by weight
-a N content of between 0.15% by weight and 0.20% by weight the balance being substantially Fe and incidental impurities.
An embodiment of steel comprising the above specified composition yields a wire of high tensile strength without the need for thermal treatment. The wires were processed according to a conventional method in web machines to form mail fabric which was found to be comfortable, with good protection properties against perforation, and not too heavy.
The pieces of garment made according to the invention can be gloves, sleeves, aprons, chasubles, jackets, etc. If necessary, some parts of the protective garments can be made in other material, according to the level of protection required for the different parts of the garment. For example, a jacket can be made with a body according to the invention and sleeves made from titanium in order to have a lighter jacket.
In the case of gloves, by comparison with steel mesh gloves made with a 0.5 mm wire having a tensile strength between 680 and 750 N/mm2, it has been found that the use of a wire with higher tensile strength between 1200 and 1500 N/mm2 substantially doubles the lifetime of the glove.

Claims

1. A fabric made of a mesh of interlocking rings, said rings comprising an external diameter in the range of 3.98 mm to 4.02 mm, said rings comprising a wire having a diameter in the range of 0.47 mm and 0.52 mm and a tensile strength in the range of 1200 N/ram2 to 1500 N/mm2.
2. The fabric according to claim 1, wherein said rings are steel having an austeno-ferritic structure.
3. The fabric according to claim 2, wherein said steel comprises Fe with:
-a C content not higher than 0.03 % by weight
-a Mn content not higher than 2.00% by weight
-a Si content not higher than 0.75% by weight
-a S content not higher than 0.01% by weight
-a P content not higher than 0.030% by weight
-a Ni content of between 4.50% by weight and 6.50% by weight
-a Cr content of between 21 % by weight and 23 % by weight -a Mo content of between 2.50% by weight and 3.50% by weight -a N content of between 0.1 % by weight and 0.20% by weight the balance being substantially Fe and incidental impurities.
4. A fabric made of a mesh of interlocking rings, said rings comprising a wire having a diameter less than 0.55 mm and a tensile strength greater than 900 N/mm2.
5. The fabric of claim 1 wherein said rings are steel having an austeno- ferritic structure.
6. A fabric made of a mesh of interlocking rings, said rings comprising a wire having a diameter less than 0.55 mm; and
steel comprising a composition of Fe with less than 0.03% by weight of C, less than 2.0% by weight of Mn, less than 0.75% by weight of Si, less than 0.01% by weight of S, less than 0.03% by weight of P, between 4.5% by weight and 6.5% by weight of Ni, between 21.0% by weight and 23.0% by weight of Cr, between 2.5% by weight and 3.5% by weight of Mo, between 0.1 % by weight and 0.2% by weight of N, and the balance being substantially Fe and incidental impurities.
EP11732441.8A 2011-07-12 2011-07-12 Steel mesh fabric for making a piece of garment Revoked EP2731741B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2011/061886 WO2013007298A2 (en) 2011-07-12 2011-07-12 Steel mesh fabric for making a piece of garment

Publications (2)

Publication Number Publication Date
EP2731741A2 true EP2731741A2 (en) 2014-05-21
EP2731741B1 EP2731741B1 (en) 2015-05-20

Family

ID=44628504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11732441.8A Revoked EP2731741B1 (en) 2011-07-12 2011-07-12 Steel mesh fabric for making a piece of garment

Country Status (2)

Country Link
EP (1) EP2731741B1 (en)
WO (1) WO2013007298A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3032866B1 (en) * 2015-02-19 2017-02-17 Manulatex France KNITTED COTTON, IN PARTICULAR FOR INDIVIDUAL PROTECTION EQUIPMENT
FR3032867B1 (en) * 2015-02-19 2017-02-17 Manulatex France KNITTED COTTON, IN PARTICULAR FOR INDIVIDUAL PROTECTION EQUIPMENT
CN109049464A (en) * 2018-06-29 2018-12-21 南通嘉得利安全用品有限公司 Arc resistant gloves and its production method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2771260B1 (en) * 1997-11-21 2000-02-11 Manulatex France KNITTED GLOVE
FR2898250B1 (en) * 2006-03-07 2008-05-30 Manulatex France Soc Par Actio METHOD OF MANUFACTURING A PROTECTIVE GARMENT AND THE GARMENT OBTAINED BY THE METHOD
FR2898249B1 (en) 2006-03-07 2008-05-30 Manulatex France Soc Par Actio INDIVIDUAL PROTECTIVE EQUIPMENT IN KNITTED COTTON WITH IMPROVED COMFORT

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013007298A2 *

Also Published As

Publication number Publication date
WO2013007298A2 (en) 2013-01-17
EP2731741B1 (en) 2015-05-20
WO2013007298A3 (en) 2013-03-28

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