CN106397895A - Sealing piece - Google Patents
Sealing piece Download PDFInfo
- Publication number
- CN106397895A CN106397895A CN201610619820.8A CN201610619820A CN106397895A CN 106397895 A CN106397895 A CN 106397895A CN 201610619820 A CN201610619820 A CN 201610619820A CN 106397895 A CN106397895 A CN 106397895A
- Authority
- CN
- China
- Prior art keywords
- base fabric
- sealing member
- banding
- rubber
- rubber composition
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 109
- 239000004744 fabric Substances 0.000 claims abstract description 130
- 229920001971 elastomer Polymers 0.000 claims abstract description 71
- 239000005060 rubber Substances 0.000 claims abstract description 71
- 239000000463 material Substances 0.000 claims abstract description 62
- 239000000203 mixture Substances 0.000 claims abstract description 51
- 238000004132 cross linking Methods 0.000 claims abstract description 8
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229920000459 Nitrile rubber Polymers 0.000 claims description 29
- 238000007493 shaping process Methods 0.000 claims description 25
- 238000004519 manufacturing process Methods 0.000 claims description 23
- 239000000470 constituent Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- 229920006231 aramid fiber Polymers 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 3
- 229920006168 hydrated nitrile rubber Polymers 0.000 abstract 2
- 238000012360 testing method Methods 0.000 description 36
- 238000011156 evaluation Methods 0.000 description 15
- 239000003431 cross linking reagent Substances 0.000 description 11
- 239000000835 fiber Substances 0.000 description 11
- 229920000742 Cotton Polymers 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 7
- 230000008595 infiltration Effects 0.000 description 7
- 238000001764 infiltration Methods 0.000 description 7
- 239000010410 layer Substances 0.000 description 7
- 238000011056 performance test Methods 0.000 description 7
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 230000000704 physical effect Effects 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 239000000758 substrate Substances 0.000 description 5
- -1 twills Substances 0.000 description 5
- 229920002449 FKM Polymers 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 4
- 238000003556 assay Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229920002943 EPDM rubber Polymers 0.000 description 3
- 239000010425 asbestos Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 239000008393 encapsulating agent Substances 0.000 description 3
- 229910052895 riebeckite Inorganic materials 0.000 description 3
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 3
- 229920002955 Art silk Polymers 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 2
- 229920005549 butyl rubber Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229940043265 methyl isobutyl ketone Drugs 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N methyl pentane Natural products CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 150000001451 organic peroxides Chemical class 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- ODLMAHJVESYWTB-UHFFFAOYSA-N propylbenzene Chemical compound CCCC1=CC=CC=C1 ODLMAHJVESYWTB-UHFFFAOYSA-N 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- NOSXUFXBUISMPR-UHFFFAOYSA-N 1-tert-butylperoxyhexane Chemical compound CCCCCCOOC(C)(C)C NOSXUFXBUISMPR-UHFFFAOYSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- XETLOFNELZCXMX-UHFFFAOYSA-N 2-(diethylamino)ethyl 2-(4-hexoxyphenyl)-2-hydroxy-2-phenylacetate;hydrochloride Chemical compound Cl.C1=CC(OCCCCCC)=CC=C1C(O)(C(=O)OCCN(CC)CC)C1=CC=CC=C1 XETLOFNELZCXMX-UHFFFAOYSA-N 0.000 description 1
- PMAAOHONJPSASX-UHFFFAOYSA-N 2-butylperoxypropan-2-ylbenzene Chemical compound CCCCOOC(C)(C)C1=CC=CC=C1 PMAAOHONJPSASX-UHFFFAOYSA-N 0.000 description 1
- BIISIZOQPWZPPS-UHFFFAOYSA-N 2-tert-butylperoxypropan-2-ylbenzene Chemical compound CC(C)(C)OOC(C)(C)C1=CC=CC=C1 BIISIZOQPWZPPS-UHFFFAOYSA-N 0.000 description 1
- OKJADYKTJJGKDX-UHFFFAOYSA-N Butyl pentanoate Chemical compound CCCCOC(=O)CCCC OKJADYKTJJGKDX-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 235000003301 Ceiba pentandra Nutrition 0.000 description 1
- 244000146553 Ceiba pentandra Species 0.000 description 1
- 101000720704 Homo sapiens Neuronal migration protein doublecortin Proteins 0.000 description 1
- 102100025929 Neuronal migration protein doublecortin Human genes 0.000 description 1
- 229920006170 Therban® Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- WURBFLDFSFBTLW-UHFFFAOYSA-N benzil Chemical group C=1C=CC=CC=1C(=O)C(=O)C1=CC=CC=C1 WURBFLDFSFBTLW-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- KAKZBPTYRLMSJV-UHFFFAOYSA-N butadiene group Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000005297 material degradation process Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 150000002898 organic sulfur compounds Chemical class 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000007965 rubber solvent Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229920003249 vinylidene fluoride hexafluoropropylene elastomer Polymers 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L15/00—Compositions of rubber derivatives
- C08L15/005—Hydrogenated nitrile rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0082—Producing articles in the form of closed loops, e.g. rings
- B29D99/0085—Producing articles in the form of closed loops, e.g. rings for sealing purposes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/02—Cellulose; Modified cellulose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/10—Polyamides derived from aromatically bound amino and carboxyl groups of amino-carboxylic acids or of polyamines and polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/12—Details
- F16J9/20—Rings with special cross-section; Oil-scraping rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/28—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction of non-metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
- B29L2031/265—Packings, Gaskets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2309/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
- C08J2309/02—Copolymers with acrylonitrile
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2315/00—Characterised by the use of rubber derivatives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2401/02—Cellulose; Modified cellulose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2477/10—Polyamides derived from aromatically bound amino and carboxyl groups of amino carboxylic acids or of polyamines and polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Sealing Material Composition (AREA)
- Sealing Devices (AREA)
- Laminated Bodies (AREA)
- Woven Fabrics (AREA)
- Actuator (AREA)
Abstract
The invention provides a sealing piece. The sealing piece is an annular sealing piece formed by forming and crosslinking strip-shaped base cloth. The strip-shaped base cloth is obtained by embedding base materials made of fabrics into rubber composition, wherein the rubber composition contains more than 60 m% of hydrogenated acrylonitrile butadiene rubber as rubber components. The hydrogenated acrylonitrile butadiene rubber contains 25 m%-50 m% of acrylonitrile.
Description
Technical field
The present invention relates to be embedded in the sealing member of ring-type obtained from the base fabric shaping of rubber composition gained by base material, special
It is not the sealing member of the section for example, substantially V-like shape or the U-shaped that are related to be configured between piston and cylinder body.The sealing of ring-type
Part is used for the widely industrial field such as electric power plants, chemical industry factory, tire industry, sealing of the sliding part of various unit
In.
Background technology
In the past, for sealing member, using rubber composition will be made to be infiltrated in braiding stone in the fields such as industry device, factory
Obtained from the cloth material of the fibers such as cotton, cotton, glass multiple stacking and vulcanization forming be regulation shape sealing member.
For the sealing member employing cotton material, glass fabric material, when using in the environment of being exposed to high-temperature steam,
The patience difference of high-temperature steam can not continuously be used for a long time.Therefore, in high temperature and in the environment of being exposed to steam, using will
The rubber layer stackup strengthened with asbestos cloth material sealing member obtained from shaping.But asbestos are harmful, therefore its use
There is worldwide restricted tendency, therefore desirable for the exploitation of its substitute products.
In addition, being used as carbon cloth although thermostability is good during raw material, but carbon cloth is rigid it is difficult to shape is assigned
Give as regulation shape, there is a problem of splitting.
In addition, in the case of sealing member obtained from nitrile rubber layer that will be strengthened with cotton is shaped, thermostability low and
Can not use at high temperature.In addition, in the case of sealing member obtained from fluororubber layer that will be strengthened with cotton is shaped although
Improve thermostability, but abrasion performance is poor.Particularly, in the situation of the working oil that these sealing members are used for water-glycol system
Under, because abrasion performance is low, therefore it some times happens that the leakage of working oil.
Following method is disclosed in No. 4712486 publications of Japanese Patent No.：To be cut obtained from carbon cloth with ad hoc approach
After sealing member formation band is laminated on mould, easily excipient is regulation shape, and is vulcanized, thus manufacturing sealing member.
In addition, disclosing a kind of sealing ring in Japanese Patent Publication 42-20943 publication, it such as gets off and obtains：Will be uncured
The infiltration such as rubber is coated on the cloth such as kapok, artificial silk, carrying out screw winding thus forming cylindrical shape to sheet material, being cut to
Specific length, and a cylindric circumferential end inside lateral bending folding is formed U-shaped.
In addition, disclosing a kind of sealing member of ring bodies in Japanese Unexamined Patent Publication 59-174456 publication, its core is by infiltrating
The fiber having rubber-like elastic materials is formed, the peripheral part of core is formed by the base fabric being impregnated with resin material.
But, in the sealing ring described in patent documentation 2, patent documentation 3, the rubber composition constituting base fabric is using general
Rubber, therefore there are the following problems：Sealing, sealing life are poor, and lack thermostability, are unsuitable in superheated steam ring
Use under border.
Content of the invention
The present invention provide can under high temperature steam environments using, abrasion performance, sealing and sealing life excellent and
And solve the sealing member of problem of environmental pollution when using asbestos.
In addition, in embodiments of the present invention, provide the method manufacturing as lower seal：Used by being formed to sealing member
Base fabric give flexibility come can be pre-formed into desired shape.And by after preform release forming pressure from
And reduce restoring force to maintain shaping form, outward appearance and physical properties excellent after curing.
The present invention relates to a kind of sealing member, it is by the sealing member of the base fabric shaping of banding, ring-type obtained from crosslinking, institute
The base fabric stating banding is that base material is embedded in obtained from rubber composition, and described rubber composition contains the hydrogen of more than 60 mass %
Change nitrile rubber as rubber constituent.
Herein, for described hydrogenated nitrile-butadiene rubber it is generally desirable to, acrylonitrile content is the model of 25 mass %～50 mass %
Enclose.And, the percentage elongation of base fabric after cross-linking is that 35～60% scope can play the requirement characteristic of sealing member effectively.
It is also desirable to, constitute the base material of base fabric by comprising the warp of aramid fiber and the cord fabric of parallel or aramid fiber
Plain cloth is formed.
Sealing member for the present invention it is generally desirable to, formed by the duplexer of the base fabric of multiple bandings, and the line of base material exist
Intersect between duplexer.And, the section of sealing member is preferably V-shaped or U-shaped.
The invention still further relates to the manufacture method of sealing member, it is the method manufacturing sealing member using annular die, described system
The method of making includes following operation：
A () prepares the operation of base fabric, described base fabric is the solution of hydrogenated nitrile rubber composition to be infiltrated in base material, by base
Material is embedded in obtained from rubber composition；
B aforementioned base fabric is cut into obtained from slanted bar with the size specifying by () preparation, the operation of the base fabric of multiple banding；
C work that the base fabric of aforementioned banding is arranged in order along its circumferencial direction in whole circumference by () on the surface of annular die
Sequence；
(d) in mould direction, the base fabric of aforementioned banding is pressurizeed so that the base fabric of aforementioned banding is mutually closely sealed and formed pre-
The operation of formed body；And
E () aforementioned preform is carried out pressurize, heats so that its crosslinked operation.
The above and other purpose of the present invention, feature, situation and advantage can according to associate with appended accompanying drawing understand,
Obtain with regard to the described further below of the present invention clearly.
Brief description
Fig. 1 is the sectional view of the piston/cylinder of the hydraulic pressure of configuration status representing annular seal.
Fig. 2 is sectional view obtained from the radial direction cut-out of the sealing member along ring-type.
Fig. 3 is the axonometric chart of sealing member obtained from shaping in annular die.
Fig. 4 is the Section A-A figure of Fig. 3.
Fig. 5 be cord fabric base material be embedded in strip obtained from rubber composition base fabric sketch.
Fig. 6 is embedded in the sectional view of base fabric obtained from rubber composition for cord fabric.
Fig. 7 is the cross-sectional perspective view of the shaping dies of sealing member.
Fig. 8 is the cross-sectional perspective view of the shaping dies of sealing member.
Fig. 9 is the cross-sectional perspective view of the shaping dies of sealing member.
Specific embodiment
The present invention be the base fabric of banding is shaped, the sealing member of ring-type obtained from crosslinking, the base fabric of described banding be by
Base material is embedded in obtained from rubber composition, and described rubber composition contains the hydrogenated nitrile-butadiene rubber conduct of more than 60 mass %
Rubber constituent.
For the sealing member of the present invention, for example, in the sectional view of piston/cylinder 1 of the hydraulic pressure shown in Fig. 1, Duo Gehuan
The sealing member 4 of shape configures between cylinder body 2 and piston 3.In FIG, between recess adapter 5 and protuberance adapter 6
It is configured with 4, the sealing member 4 of left and right 16 ring-types of total.Piston for the sealing member of the ring-type of the present invention, in cylinder body
During work, there is under high temperature, high humidity sufficient durability, even and if also maintaining high sealing after long operating distance
Property.
<The shape of sealing member>
Fig. 2 illustrates diametrically to cut off cross sectional shape obtained from the sealing member 41 of ring-type.The section of sealing member has
Substantially V-like shape, and by outside base fabric 4a being configured at outside sealing member and be configured at inner side base fabric 4b inside sealing member this 2
Open duplexer to shape.
The sealing member 41 of ring-type aforementioned base cloth layer being collapsed into the section substantially V-shaped of shape is for example with internal diameter R1 as 30mm
～500mm, height h are that 2～20mm, width W to be formed for 5～30mm.
In addition to substantially V-shaped shown in except Fig. 2 for the cross sectional shape of sealing member 41, can also be using substantially U-shaped, substantially
Circular shape.The sealing member of these cross sectional shapes passes through to shape and crosslinked band on the shaping dies of corresponding cross sectional shape
To manufacture.The cross sectional shape of the sealing member of the present invention is not particularly limited, example corresponding with the cross sectional shape of mould
If any section as shown in Figure 7 be the triangle 10A with protuberance, section as shown in Figure 8 be " く " font 10B or as shown in Figure 9
Section is C font (10C) etc..
<Base material>
In the present invention, base material is embedded in rubber composition to make base fabric.Herein base material can using cord fabric,
The fabrics such as plain cloth, twills, fabric, non-woven fabrics etc..(employ simultaneously alternatively, it is also possible to be suitably used heavy weave
Yarn, the slightly thick fabric of strand), (complete organization containing at least 5 warps and parallel, in this complete organization for satin fabric
In same warp and parallel only staggered 1 time and parallel winged number be more than 1 tissue).And, fiber is except aramid fiber, polyester, Buddhist nun
Beyond the organic fibers such as dragon, artificial silk and cotton, the inorfil such as carbon fiber, glass fibre can also be used.Particularly, from heat-resisting
From the viewpoint of performance and sealing property, it is suitably aramid fiber.
Fig. 5 illustrates that the base material of cord fabric is embedded in the sketch of the base fabric of strip obtained from rubber composition.Herein, quilt
The thickness of the fabric as base material before rubber composition infiltration or fabric is, for example, 0.2mm～0.80mm, by rubber group
The weight per unit area of the base material before compound infiltration is, for example, 100～300g/m2.
For fabric it is generally desirable to, Density is, for example, 3～15/cm, preferably 4～10/cm, and described fabric is close
The radical of the fiber to use in the width in respective 1cm of warp-wise and broadwise for the degree represents.In the case of cord fabric, flat
And in the thin solid from base material of base material thickness, having that the basket weave of thickness is different, Density is also little, rubber composition easily soaks
The interface peel ooze in fabric, being not susceptible to rubber and fiber, in addition, the surface smoothness of the sealing member shaping is also excellent.
In the present invention, maintain the flexibility of base fabric by the substrate using fine fibre, so that rubber composition is infiltrated
Base material in base material, base fabric obtained from attachment and rubber are not susceptible to peel off, excellent to the processability of desired encapsulant
Different, surface smoothness of the encapsulant after shaping etc. is excellent.When fibre diameter is excessive, and when Density is high, base fabric becomes
Become rigidity, the shaping processability on mould becomes difficult.
<Base fabric>
Base fabric is aforementioned substrates to be embedded in rubber composition or so that the solution of rubber composition is infiltrated in base material and to make
Make.Fig. 6 illustrates that cord fabric is embedded in the sectional view of base fabric obtained from rubber composition.In in figure, warp 13 is in length
Direction configures with separating certain intervals, and betwixt fine parallel 14 is in the configuration alternately up and down of warp 13, maintain through
The mutual alignment relation of line 13.And, for base fabric 11, rubber composition 12 is embedded in by the base material that warp and parallel are formed.
The content of the rubber composition in base fabric is 40～80 mass %, the scope of preferably 50～70 mass %.In order to tie up
The being mutually bonded property of base fabric when holding physical property needed for the sealing member such as elasticity of appropriateness, shaping, can be by the layer of the base material before crosslinking
Stack shape gives as desired shape, can be configured to preform under elevated pressure and adjust the content of rubber composition.
If the content of the rubber composition in base fabric is few, the physical property of the rigidity of sheet material or its duplexer is overall to sealing member
The harmful effect bringing is too strong, thus difficult to form possesses the sealing member of the appropriateness elasticity as encapsulant, is susceptible to base
The splitting of material.In addition, in the fabrication process, shape gives difficulty and the processability to preform etc. is also deteriorated.Another
Aspect, when the content of the rubber composition in base fabric is up to over above range, the physical property of the softness of rubber constituent is to sealing member
The impact that overall physical property is brought is big, the stiffening effect to sealing member being brought by filling base material become insufficient it is difficult to
Obtain the sealing member cascading into shape of the strong base fabric of so-called stiffness.
(base fabric of banding)
For the base fabric of banding, the base fabric obtaining strip by making base material be embedded in rubber composition is along its length to advise
Determine angle, slanted bar is cut into certain width, thus manufacturing the base fabric 11 of multiple bandings.The width m of the base fabric of banding is for example
For 10～30mm, tapered cut angle, θ is typically set at 30 °～60 ° of scope.
(percentage elongation of base fabric)
It is desirable that the percentage elongation of the base fabric of banding is 35～60% scope.In this range, can be to being used for being formed as
The base fabric of sealing member gives flexibility and can be pre-formed into desired shape.And shaped by release after preform
Pressure, thus reducing restoring force to maintain shaping form, can obtain abrasion performance and the excellent sealing of resistance to sealing after curing
Part.
<Rubber composition>
Rubber composition for burying base material for example makes the rubber compositions such as hydrogenated nitrile-butadiene rubber, nitrile rubber be dissolved in
Solvent is manufacturing.Solvent for example can be using rubber solvents such as acetone, toluene, methyl iso-butyl ketone (MIBK)s (MIBK).
The mix ratio of the rubber constituent in rubber composition and solvent is not particularly limited, in rubber composition 100 weight
In amount part, for example, to comprise rubber constituent, in addition to be come with the amount of surplus such as 85～75 weight portion with the amount of 15～25 weight portions
Comprise solvent.
In the present invention, the hydrogenated nitrile-butadiene rubber that rubber constituent contains more than 60 mass % (below, is also recited as " H-
NBR”.).This is in hydrogenated nitrile-butadiene rubber, and acrylonitrile content is the scope of 25 mass %～50 mass %.
Hydrogenated nitrile-butadiene rubber is polymer obtained from the double bond portion of the butadiene unit of nitrile rubber is hydrogenated with, and leads to
Cross and be hydrogenated with, thermostability and resistance to ag(e)ing improve.Herein, commercially available have the polymer that hydrogenation rate is 60～98%, can be suitable
Ground uses.
In view of the mechanical property required by the formability required by rubber composition, rubber cross body, light transmission etc., hydrogen
Change nitrile rubber (H-NBR) and can suitably adopt various materials.Specifically, Zeon Corporation can be exemplified manufacture
Trade name：The trade name that ZETPOL system, Bayer (Bayer) company manufacture：Therban system etc..
In the present invention, can be used alone these hydrogenated nitrile-butadiene rubbers, for Mooney viscosity, curingprocess rate, oil mass etc.
The purpose such as adjustment it is also possible to be mixed with two or more H-NBR.
Alternatively, it is also possible to H-NBR is mixed with other rubber constituents.As other rubber constituents, for example, can use second
Alkene-propylenediene rubber (EPDM), ethylene-propylene rubber (EPM), nitrile rubber (NBR；Acrylonitrile butadiene rubber), butyl
Rubber (IIR), fluorubber (FKM), silicone rubber etc..Wherein, from the viewpoint of sealing, preferably nitrile rubber (NBR),
EPDM, FKM etc..Rubber constituent can only be formed it is also possible to comprise two or more by a kind.
In the case of using these rubber constituents, it is compounded with the amount of 40 mass % overall less than rubber constituent.
<Cross-linking agent>
In the present invention, as cross-linking agent, it is possible to use sulfur, organosulfur compound, disulphide, organic peroxide
Deng.For organic peroxide, as the material adopting in EPDM, H-NBR, for example, can exemplify：2,5- dimethyl -2,5- two
(t-butylperoxy) -3- hexane, di-tert-butyl peroxide, 2,5- dimethyl -2,5- two (t-butylperoxy) hexane, uncle
Butyl cumyl peroxide, 1,3- double (tert-butylperoxyiso-propyl) benzene, dicumyl peroxide, 4,4- bis- (t-butyl peroxy
Change) butyl valerate, 2,2- bis- (tert-butyl hydroperoxide) butane, 1,1- di-tert-butyl peroxide -3,3,5- trimethyl-cyclohexane, mistake
Oxidation dibenzoyl, double (o-methyl-benzene formoxyl) peroxide, double (to methyl benzoyl) peroxide, t-butyl peroxy
Change Benzilate etc..
Cross-linking agent is compounded a kind or multiple with the scope being 0.5～5 mass parts with respect to rubber constituent 100 mass parts.
<The manufacture of sealing member>
The sealing member of the present invention is manufactured by following operation using annular die.
A () prepares the operation of base fabric, described base fabric is that the solution of hydrogenated nitrile rubber composition is infiltrated in base material, by base
Material is embedded in obtained from rubber composition.
B aforementioned base fabric is cut into obtained from slanted bar with the size specifying by () preparation, the operation of the base fabric of multiple banding.
C work that the base fabric of aforementioned banding is arranged in order along its circumferencial direction in whole circumference by () on the surface of annular die
Sequence.
(d) in mould direction, the base fabric of aforementioned banding is pressurizeed so that the base fabric of aforementioned banding mutually closely sealed thus being formed
The operation of preform.
E () aforementioned preform is carried out pressurize, heats so that its crosslinked operation.
Hereinafter, refer to the attached drawing illustrates to the method for the annular seal manufacturing the present invention.Fig. 3 is in annular die
The axonometric chart of sealing member obtained from shaping.Fig. 4 is the Section A-A figure of Fig. 3.
<Prepare the operation of the base fabric of banding>
In Figure 5, for the base fabric 11 of banding, by the base fabric 150 of strip along base fabric length direction with predetermined angular θ (X
Direction) carry out tapered cut, make the base fabric 11 of the banding that many sheet of planar are parallelogram.
Shown in Fig. 5, base material is embedded in the sketch of the base fabric 150 of strip obtained from rubber composition, shown in Fig. 6
The sectional view of base fabric 150.In Fig. 5 and Fig. 6, by the base fabric 150 of the strip extending along left and right towards paper with respect to length
For example, 30 °～60 ° of the tapered cut angle, θ in direction (being horizontal towards paper) is cut, and obtains the banding of parallelogram
Base fabric 11.
It should be noted that in Figure 5, using the cord fabric of warp 13 and parallel 14 and long along base material with warp 13
The mode that the arrangement of degree direction, parallel 14 arrange along substrate width direction to be made into base fabric 150.
The internal diameter of the piston shaft etc. according to sealing for the size of the base fabric 11 of banding and external diameter, using position, required groove
Depth, size of sealing member etc. and different, rather than entirely determine, for example, the width m of base fabric is 10mm～30mm.In addition,
Base material thickness before rubber composition infiltration is 0.2mm～0.8mm.It should be noted that especially not limiting to the length of base fabric
Fixed.
In addition, the weight per unit area of the base material before rubber composition infiltration is 100～300g/m2, preferably 150～
250g/m2.If this weight per unit area is more than above range, weight per unit area is excessive, the surface appearance inferior of sealing member,
And there is inelastic tendency.
<Preformed operation>
In Fig. 3 and Fig. 4, to the base fabric 11 that base fabric is cut into the banding that plane obtained from slanted bar is parallelogram
It is arranged in order curl in the outer peripheral face of mould 10 along its circumferencial direction.By the circumferencial direction row along shaping dies 10
Row, stacking obtained from banding base fabric 11 along mould surface configuration extruding or be embedded in outer mold, thus carrying out preformation
Shape.Now, in order that the base fabric temporary adhesive attachment of banding is in mould 10, and make banding base fabric 11 closely sealed mutually, it is possible to use
Bonding agent.Bonding agent for example can use the sizing agent of the composition same with rubber composition used in sealing member herein.
In the present invention, from the outside of mould 10 side to the base fabric 11 of 1 or multiple bandings as needed via viscous
Connect oxidant layer and be laminated on preform obtained from die surface and pressurizeed, so that the base fabric 11 of banding is closely sealed closely to each other.
In this pressurization, can combine with above-mentioned shaping dies 10, can be configured to using preform is made interlayer
The outside mould of desired shape.The cross sectional shape of this outside mould preferably periphery with the shaping dies 10 of above-mentioned ring-type
Face form fit ground, Formation cross-section is the triangle with circular depressions, section is " く " font, section is the space part shapes such as C font
Shape.
In the present invention, using shaping dies 10 during figuration, corresponding to the groove G of the sealing member of Fig. 2, the shaping shown in Fig. 4
Mould 10 has protuberance G ', and the section of mould 10 is triangle, and flat shape is ring-type.By using this shaping dies
10 can really and be easily implemented with figuration be desired shape.
<Cross-linking process step>
Shown in Fig. 2, preform obtained from figuration is heated in mould under elevated pressure thus crosslinked, shape
Obtained from section substantially V-shaped sealing member 41.Crosslinked molding condition is according to the species of the rubber constituent of rubber composition
And different it is impossible to entirely determine, for example, for the compositionss comprising 100 parts of hydrogenated nitrile-butadiene rubbers, in 120～170 DEG C of temperature
Lower holding 1～40 minute.The flatness that sealing member 41 obtained from crosslinked shaping is changed into appearance surfaces is excellent, tensile strength is excellent
Different, there is flexibility to bending, and, be not susceptible to splitting when using, the sealing member of life-time service can be stood.
<The manufacture of product sealing member>
In the case of the sealing member 41 being formed the present invention by duplexer, (for example rotate in the annular component that should seal
Axle) outer surface any position, the warp (or parallel) of base material is all to submit in the circumferencial direction the same face with annular component
The mode pitching into slanted bar arranges.
In the manufacture method of the sealing member of the present invention, by by constitute by tapered cut after banding base fabric fiber in layer
The interlayer of stack is configured to slanted bar, compared with existing substrate fiber, the easy figuration of preform of sealing member and efficiency is good.And
And prevent the balancing good of the stripping, outward appearance and tensile strength, bending etc. of the substrate fiber of sealing member.
[embodiment]
Embodiment, the sealing member of the ring-type of comparative example and its manufacture method are specifically illustrated.
<Base material>
Used in embodiment shown in table 2 and comparative example, base material is as follows.
(1) base material (cotton)
Heavy weave, warp density：10/cm, weft density：10/cm, base material thickness：0.7mm、
Weight per unit area：61g/m2
(2) base material (aramid fiber 1)
Plain cloth, warp density：12/cm, weft density：12/cm, base material thickness：0.42mm、
Weight per unit area：66g/m2
(3) base material (aramid fiber 2)
Satin fabric, warp density：29/cm, weft density：20/cm, base material thickness：0.65mm, unit area weight
Amount：66g/m2
<The making of base fabric>
The infiltration liquid of the rubber composition of the formula A～formula C shown in table 1 is applied on various base materials, at normal temperatures
It is made to be dried thus manufacturing base fabric.Herein, the quality of rubber composition is 66 mass % of the quality of base fabric.
(rubber infiltration liquid)
By the rubber composition of the formula A～formula C shown in table 1 and solvent (MIBK：Methyl iso-butyl ketone (MIBK)) with solvent (78
Quality %) mass parts are with respect to rubber composition (solid constituent：22 mass %) amount of mass parts carries out mixing to prepare.
(making of the base fabric of banding)
Then, to the base fabric of strip with respect to the angle (in Fig. 5, θ=45 °) of about 45 ° of length direction, with width m to be
The interval of 20mm is cut, and obtains the base fabric of the banding of width 20mm.
(making of sealing member)
Then, as shown in Figures 3 and 4, the base fabric of banding is cut into the upper of one end of slanted bar and shaping dies 10 with it
The consistent mode of face circumferencial direction arrange circular, and when carrying out figuration with sizing agent (composition：Infiltrate liquid phase with rubber
With) pasted and be laminated, thus obtaining shape to give the preform for section substantially V-shaped.
Then, the preform after figuration is placed in heating press molding mould, at a temperature of 160 DEG C, pressure
Carry out the pressurization of about 25 minutes under power 10MPa, make the sealing member after crosslinked shaping.With reference to Fig. 2, the height of the sealing member made
Degree h is 8.5mm, internal diameter R1 is 11.3mm for 98.7mm, width W.
[table 1]
| Formula A | Formula B | Formula C | |
| H-NBR | 100 | - | - |
| NBR | - | 100 | - |
| FKM | - | - | 100 |
| Cross-linking agent A | 8 | - | - |
| Crosslinking agent B | - | 3 | - |
| Cross-linking agent C | - | 1 | - |
| Cross-linking agent D | - | - | 3 |
Compounding amount represents the mass parts with respect to rubber constituent 100 mass parts.
(note 1) H-NBR：(hydrogenation ratio is 91wt% to hydrogenated nitrile-butadiene rubber：Acrylonitrile content is 36wt%：Trade name
" ZETPOL 2020 " Zeon Corporation manufactures)
(note 2) NBR：(acrylonitrile content is 33wt% to acrylic-nitrile rubber：Trade name " NIPOL042 " Zeon
Corporation manufactures)
(note 3) FKM：Fluorubber (trade name " DAI-EL G501 " DAIKIN INDUSTRIES, Ltd. manufacture)
(note 4) cross-linking agent A：(NOF Corp manufactures PEROXYMON F-40, two (tert-butyl hydroperoxides) two are different
Propylbenzene)
(note 5) crosslinking agent B：Sulfur
(note 6) cross-linking agent C：DNP (Ouchi Shinko Chemical Ind Co., Ltd.'s manufacture, dibenzothiazyl disulfide)
(note 7) cross-linking agent D：(DAIKIN INDUSTRIES, Ltd. manufacture V3 polyamines, N, and the double Cortex Cinnamomi al -1,6- of N- is own
Diamidogen)
<The evaluation methodology of physical property>
Implement evaluation of material and the performance test evaluation of sealing member by following method, the results are shown in table 2.Evaluate
Using 1 point～5 points of evaluation, 5 be divided into the most excellent.
(1) thermostability
Overall merit is carried out according to evaluation of material and the respective result of performance test.
A () evaluation of material is tested
Make the dumb-bell test piece of length 100mm × thickness 2～3mm using base fabric, carry out under 120～160 DEG C of environment
Deterioration test based on JIS B2403.It should be noted that test film carries out the MAX dipping of 1000 hours in working oil.
Measure hardness, tensile strength, percentage elongation, these characteristics of volume, thus evaluating the degree of material degradation.
(b) performance test
At 100 DEG C of ambient temperature, test is operated to sealing member.Working condition is herein：Load pressure be 21MPa,
Operating rate is the about 200mm/ second, stroke is 50mm.This test is following test：Evaluation sample is assembled into insertion rod-type
Assay device (as JIS B2409 accompanying drawing 1) shaft seal part, side loads pressure by hydraulic power source between two sealing members
Power, side directly drives bar, is operated test.Measure the leakage rate (cc/100m) during 0～100km work, evaluate durability.
(2) resistance to vapor permeability
Make the dumb-bell test piece of length 100mm × thickness 2～3mm using base fabric, carry out under 120～180 DEG C of environment
Deterioration test based on JIS K6258.Measure hardness, tensile strength, percentage elongation, these characteristics of volume, thus it is bad to evaluate material
The degree changed.
(3) abrasion performance
It is operated test and the overall merit of cylinder body work long duration test.
(a) performance test
It is operated test at 100 DEG C of ambient temperature.Working condition is：Load pressure is 21MPa, operating rate is about
The 200mm/ second, stroke be 50mm, working oil be water-glycol system working oil.This test is following test：By evaluation sample group
It is attached to the shaft seal part of the assay device (as JIS B2409 accompanying drawing 1) of insertion rod-type, it is close two that hydraulic power source is passed through on side
Load pressure between sealing, side directly drives bar, is operated test.Change in size according to sealing member and the damaged condition of outward appearance
To evaluate abrasion performance.
The work long duration test of (b) cylinder body
Release pressure be 21MPa, oil temperature be 60 DEG C, operating rate be the about 100mm/ second, stroke be 250mm, working distance
Carry out under for 1000km, working oil for water-glycol system working oil.This test is using double ejector half cylinder bodies, by evaluation sample
It is assembled into shaft seal portion (or piston portion), the test carrying out by making cylinder body work based on the pressure of hydraulic power source.According to
The damaged condition of the change in size of sealing member and outward appearance is evaluating abrasion performance.
(4) sealing
It is operated test and the overall merit of cylinder body work long duration test.
(a) performance test
It is operated test at 100 DEG C of ambient temperature.Working condition is：Load pressure is 21MPa, operating rate is about
The 200mm/ second, stroke be 50mm, working oil be water-glycol system working oil.This test is following test：By evaluation sample group
It is attached to the shaft seal part of the assay device (as JIS B2409 accompanying drawing 1) of insertion rod-type, it is close two that hydraulic power source is passed through on side
Load pressure between sealing, side directly drives bar, is operated test.Measure External leakage amount (cc/ during 0～100km work
100m), evaluate sealing.
The work long duration test of (b) cylinder body
Release pressure be 21MPa, oil temperature be 60 DEG C, operating rate be the about 100mm/ second, stroke be 250mm, working distance
Carry out under for 1000km, working oil for water-glycol system working oil.This test is using double ejector half cylinder bodies, by evaluation sample
It is assembled in shaft seal portion (or piston portion), the test being carried out by making cylinder body work based on the pressure of hydraulic power source.Survey
External leakage amount (cc/100m) during fixed 0～1000km work, evaluates sealing.
(5) sealing life property
Carry out evaluation of material test and the overall merit of performance test.
A () evaluation of material is tested
This test is the deterioration test under 120～160 DEG C of environment using folder cloth dumbbell (JIS B2403), and in work
Carry out the MAX dipping of 1000 hours in oil.Measure hardness, tensile strength, percentage elongation, these characteristics of volume, evaluate sealing life
Property.
(b) performance test
It is operated test at 100 DEG C of ambient temperature.Working condition is：Load pressure is 21MPa, operating rate is about
The 200mm/ second, stroke be 50mm, working oil be water-glycol system working oil.This test is following test：By evaluation sample group
It is attached to the shaft seal part of the assay device (as JIS B2409 accompanying drawing 1) of insertion rod-type, it is close two that hydraulic power source is passed through on side
Load pressure between sealing, side directly drives bar, is operated test.Measure External leakage amount (cc/ during 0～100km work
100m), evaluate sealing life property.
(6) percentage elongation of base fabric measures
Using base fabric, the dumb-bell test piece that making length is 100mm, thickness is 2～3mm, carry out based on JIS B2403
Tension test, measure percentage elongation now.
[table 2]
Evaluation result：Best for result is designated as 5 points, worst is designated as 1 point.
Embodiments of the present invention are illustrated, it is to be understood that, this disclosed embodiment is in all respects
All be illustrate and unrestricted.The scope of the present invention is illustrated by claims, represents and is included in the meaning impartial with claims
Being had altered in think of and scope.
Claims (7)
1. a kind of sealing member, it is by the sealing member of the base fabric shaping of banding, ring-type obtained from crosslinking, the base fabric of described banding
It is that base material is embedded in obtained from rubber composition, the hydrogenated nitrile-butadiene rubber that described rubber composition contains more than 60 mass % is made
For rubber constituent.
2. sealing member according to claim 1, wherein, in described hydrogenated nitrile-butadiene rubber, acrylonitrile content is 25 mass %
The scope of～50 mass %.
3. sealing member according to claim 1, wherein, the percentage elongation of the base fabric after crosslinking is 35～60% scope.
4. sealing member according to claim 1, wherein, base material is by comprising the warp of aramid fiber and the cord fabric of parallel
Or the plain cloth of aramid fiber is formed.
5. sealing member according to claim 4, it is formed by the duplexer of the base fabric of multiple bandings, and constitutes this base fabric
The line of base material intersects between duplexer.
6. sealing member according to claim 1, its section is V-shaped or U-shaped.
7. a kind of manufacture method of sealing member, it is the method using the sealing member described in annular die manufacturing claims 1, institute
State manufacture method and include following operation：
A () prepares the operation of base fabric, described base fabric is that the solution of hydrogenated nitrile rubber composition is infiltrated in base material, and base material is buried
Located at obtained from rubber composition；
B described base fabric is cut into obtained from slanted bar with the size specifying by () preparation, the operation of the base fabric of multiple banding；
C operation that the base fabric of described banding is arranged in order along its circumferencial direction in whole circumference by () on the surface of annular die；
(d) in mould direction, the base fabric of described banding is pressurizeed so that the base fabric of described banding is mutually closely sealed and form preform
The operation of body；And
E () described preform is carried out pressurize, heats so that its crosslinked operation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015150783A JP6599681B2 (en) | 2015-07-30 | 2015-07-30 | Packing |
| JP2015-150783 | 2015-07-30 |
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| CN106397895A true CN106397895A (en) | 2017-02-15 |
| CN106397895B CN106397895B (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610619820.8A Active CN106397895B (en) | 2015-07-30 | 2016-07-29 | Sealing element |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626198A (en) * | 2017-03-22 | 2018-10-09 | 罗伯特·博世有限公司 | Fluid cylinder with improved sealing element and the manufacturing method for it |
| CN109719969A (en) * | 2018-12-29 | 2019-05-07 | 北京航天天美科技有限公司 | Laying method on type face mould tool |
| CN109719970A (en) * | 2018-12-29 | 2019-05-07 | 北京航天天美科技有限公司 | Thermal protective skirt and preparation method thereof |
| CN109759787A (en) * | 2018-12-10 | 2019-05-17 | 武汉鑫华封机械制造有限责任公司 | Iron modeling combination super abrasive high intensity float grease seal ring and its manufacturing method |
| CN114619601A (en) * | 2021-12-30 | 2022-06-14 | 浙江国泰萧星密封材料股份有限公司 | Preparation method of oil pocket for sealed large-size coupler |
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| JP6500053B2 (en) * | 2017-03-22 | 2019-04-10 | 三菱電線工業株式会社 | Sealing material |
| JP7301702B2 (en) * | 2019-09-27 | 2023-07-03 | 日立建機株式会社 | Construction Machinery and Cylinder Parts Replacement Timing Prediction System |
| JP7431009B2 (en) * | 2019-10-09 | 2024-02-14 | 株式会社バルカー | Composite, packing and manufacturing method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626198A (en) * | 2017-03-22 | 2018-10-09 | 罗伯特·博世有限公司 | Fluid cylinder with improved sealing element and the manufacturing method for it |
| CN109759787A (en) * | 2018-12-10 | 2019-05-17 | 武汉鑫华封机械制造有限责任公司 | Iron modeling combination super abrasive high intensity float grease seal ring and its manufacturing method |
| CN109719969A (en) * | 2018-12-29 | 2019-05-07 | 北京航天天美科技有限公司 | Laying method on type face mould tool |
| CN109719970A (en) * | 2018-12-29 | 2019-05-07 | 北京航天天美科技有限公司 | Thermal protective skirt and preparation method thereof |
| CN109719970B (en) * | 2018-12-29 | 2021-08-10 | 北京航天天美科技有限公司 | Heat-proof skirt and preparation method thereof |
| CN109719969B (en) * | 2018-12-29 | 2021-08-20 | 北京航天天美科技有限公司 | Layering method on molded surface mold |
| CN114619601A (en) * | 2021-12-30 | 2022-06-14 | 浙江国泰萧星密封材料股份有限公司 | Preparation method of oil pocket for sealed large-size coupler |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6599681B2 (en) | 2019-10-30 |
| JP2017032029A (en) | 2017-02-09 |
| CN106397895B (en) | 2020-08-18 |
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