WO2006007882A1 - Magnetostriktives element und dessen verwendung - Google Patents
Magnetostriktives element und dessen verwendung Download PDFInfo
- Publication number
- WO2006007882A1 WO2006007882A1 PCT/EP2005/001794 EP2005001794W WO2006007882A1 WO 2006007882 A1 WO2006007882 A1 WO 2006007882A1 EP 2005001794 W EP2005001794 W EP 2005001794W WO 2006007882 A1 WO2006007882 A1 WO 2006007882A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rubber
- magnetostrictive element
- molded part
- magnetic field
- element according
- Prior art date
Links
- 229920000642 polymer Polymers 0.000 claims abstract description 29
- 230000005291 magnetic effect Effects 0.000 claims abstract description 24
- 239000002245 particle Substances 0.000 claims abstract description 19
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 18
- 229920001971 elastomer Polymers 0.000 claims description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 239000005060 rubber Substances 0.000 claims description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- 238000013016 damping Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 239000003302 ferromagnetic material Substances 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 9
- 229920001169 thermoplastic Polymers 0.000 claims description 9
- 239000004416 thermosoftening plastic Substances 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 229920000459 Nitrile rubber Polymers 0.000 claims description 6
- 229910017052 cobalt Inorganic materials 0.000 claims description 6
- 239000010941 cobalt Substances 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- 229920006311 Urethane elastomer Polymers 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 239000006263 elastomeric foam Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 claims description 4
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 4
- 150000002910 rare earth metals Chemical class 0.000 claims description 4
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 4
- 229920002397 thermoplastic olefin Polymers 0.000 claims description 4
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims description 3
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 claims description 3
- 229920005560 fluorosilicone rubber Polymers 0.000 claims description 3
- 238000001228 spectrum Methods 0.000 claims description 3
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 claims description 3
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- KUDUQBURMYMBIJ-UHFFFAOYSA-N 2-prop-2-enoyloxyethyl prop-2-enoate Chemical compound C=CC(=O)OCCOC(=O)C=C KUDUQBURMYMBIJ-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- 239000004709 Chlorinated polyethylene Substances 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 2
- 244000043261 Hevea brasiliensis Species 0.000 claims description 2
- 239000005062 Polybutadiene Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 229910052771 Terbium Inorganic materials 0.000 claims description 2
- 229920005557 bromobutyl Polymers 0.000 claims description 2
- 229920005549 butyl rubber Polymers 0.000 claims description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 2
- 229920005556 chlorobutyl Polymers 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 2
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 2
- 229920005561 epichlorohydrin homopolymer Polymers 0.000 claims description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 2
- 229920005555 halobutyl Polymers 0.000 claims description 2
- 125000004968 halobutyl group Chemical group 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 229920003052 natural elastomer Polymers 0.000 claims description 2
- 229920001194 natural rubber Polymers 0.000 claims description 2
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 2
- 229920002857 polybutadiene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920003245 polyoctenamer Polymers 0.000 claims description 2
- 229920003246 polypentenamer Polymers 0.000 claims description 2
- 229920002379 silicone rubber Polymers 0.000 claims description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
- 230000002123 temporal effect Effects 0.000 claims description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims 1
- SFJBWZNTPHYOEH-UHFFFAOYSA-N cobalt Chemical compound [Co].[Co].[Co] SFJBWZNTPHYOEH-UHFFFAOYSA-N 0.000 claims 1
- 239000011737 fluorine Substances 0.000 claims 1
- 229910052731 fluorine Inorganic materials 0.000 claims 1
- 239000000696 magnetic material Substances 0.000 claims 1
- 229920000636 poly(norbornene) polymer Polymers 0.000 claims 1
- 229920006345 thermoplastic polyamide Polymers 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 239000000463 material Substances 0.000 description 11
- 239000000806 elastomer Substances 0.000 description 10
- 239000011148 porous material Substances 0.000 description 10
- 239000006260 foam Substances 0.000 description 8
- 238000004132 cross linking Methods 0.000 description 4
- 230000009477 glass transition Effects 0.000 description 3
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 229920006037 cross link polymer Polymers 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- 239000004971 Cross linker Substances 0.000 description 1
- 229910001279 Dy alloy Inorganic materials 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910001117 Tb alloy Inorganic materials 0.000 description 1
- 229910001329 Terfenol-D Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 125000000732 arylene group Chemical group 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000012990 dithiocarbamate Substances 0.000 description 1
- 150000004659 dithiocarbamates Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 150000002357 guanidines Chemical class 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001643 poly(ether ketone) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920001470 polyketone Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 150000003557 thiazoles Chemical class 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/005—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion using electro- or magnetostrictive actuation means
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N35/00—Magnetostrictive devices
- H10N35/80—Constructional details
- H10N35/85—Magnetostrictive active materials
Definitions
- the present invention relates to magnetostrictive elements and their use
- Magnetostrictive materials are known per se. This refers to materials whose dimensions change in the presence of a magnetic field or which produce magnetic fields as their dimensions change.
- the magnetostrictive effect corresponds to the piezoelectric effect, which results in dimensional changes of the material due to the presence of an electric field.
- the piezoelectric effect usually requires very high electric field strengths or very high voltages in the range of a few kilovolts in order to achieve appreciable dimensional changes.
- magnetostrictive materials are known in which comparatively low voltages must be used to achieve the desired dimensional changes.
- terfenol-D Such a material is known by the name terfenol-D; this is an alloy of iron, terbium and dysprosium.
- Magnetostrictive materials are described, for example, in documents EP-A-361, 969, WO-A-00 / 33,324, US-A-6,273,965 and US-A-5,223,046.
- Magnetostrictive elastomeric materials are also known (see Mide Technology Corporation, Magnetostrictive Elastomers, www.mide.com). Details about their structure are not available in the document.
- JP-A-2002 / 278,425 discloses a foamed polymer material containing magnetic powders. This is used to seal photocopiers to prevent toner from escaping.
- Possible polymers are elastomers, such as ethylene-propylene elastomers.
- JP-A-03 / 122,139 discloses magnetized rubber compositions for the production of crosslinked foams. These are used for sound insulation and vibration damping.
- JP-A-58 / 533,928 discloses flexible cellular elastomers containing metal powders. These are used to shield radiation.
- porous polymers containing ferromagnetic particles have a markedly enhanced magnetostrictive effect compared to the corresponding compact polymer materials.
- the object of the present invention is to provide filled porous polymers which have a pronounced magnetostrictive effect.
- Another object was to provide a method for selectively moving objects or damping objects or detecting changes in the dimensions of objects characterized by high sensitivity that is easy to perform and that provides reproducible results.
- the present invention relates to a magnetostrictive element comprising a) at least one device for generating a magnetic field and, b) at least one shaped part made of porous polymer containing ferromagnetic particles.
- the inventively used device a) may be of any nature, as long as a magnetic field can be generated.
- this is an electrical conductor, preferably a metallic conductor, which is located in the vicinity of the molding b), so that the magnetic field generated by the device a) can act on the molding b) or vice versa, that by a molding b) generated magnetic field on device a) can act.
- the magnetic field may be a constant magnetic field or preferably a time-varying magnetic field.
- device a) is designed in the form of a coil, which is located in the vicinity of molded part b), particularly preferably around molded part b), which in particular has the shape of a cylinder is wound.
- Molding b) may have any shape and adapted to the particular application.
- Molded part b) preferably has the shape of a cylinder.
- all polymers can be used for the production of moldings from porous polymers. These are typically thermoplastic or crosslinked or partially crosslinked polymers, including the elastomers.
- These shaped bodies contain pores filled with fluids, ie gas and / or liquid.
- the size of the pores can vary widely. Typical pore sizes range from 10 ⁇ m to 3 mm.
- the pores can have any shape.
- the shaped bodies can have closed pores and / or open pores.
- the pore volume of the shaped article is typically at least 5% by volume.
- shaped bodies of elastomer foams including the foams of thermoplastic elastomers.
- the shaped bodies of porous polymers used in accordance with the invention are variable in their volume under the influence of pressure, in contrast to shaped bodies made of compact polymers.
- the porous polymers used according to the invention can be derived from any thermoplastics.
- thermoplastics are synthetic polymers, such as thermoplastic polyurethanes, polysulfones, polyethers, polyketones and polyether ketones, polyamides, polyesters, poly (arylene oxides), poly (arylene sulfides), polyetherimides, polyacetals, vinyl polymers, polyacrylates and polyolefins.
- Elastomer foams are particularly preferably used.
- foamed plastics are to be understood as having rubber-elastic behavior. These are thus widely chemically or physically crosslinked polymers which behave steel elastic under their glass transition point and which are rubber-elastic at temperatures above their glass transition point, which therefore do not flow viscously even at high temperatures. Glass transition temperatures of preferably used elastomers are at 20 0 C and below.
- the elastomer foams used according to the invention preferably behave elastically up to their melting or decomposition temperature.
- Typical and preferably used rubbers are acrylate rubber, polyester urethane rubber, brominated butyl rubber, polybutadiene, chlorinated butyl rubber, chlorinated polyethylene, epichlorohydrin homopolymer, polychloroprene, sulfurized polyethylene, ethylene-acrylate rubber, ethylene-vinyl acetate Rubber, epichlorohydrin
- Copolymers ethylene-propylene copolymers (EP (D) M), sulfur-crosslinked or peroxide-crosslinked, polyether-urethane rubber, ethylene-vinyl acetate copolymer, fluorinated rubber, silicone rubbers such as fluorosilicone rubber (FVMQ) or vinyl-containing dimethylpolysiloxane, and hydrogenated nitrile rubber, butyl rubber, halobutyl rubber, polyoctenamer, polypentenamer, nitrile rubber, natural rubber, thioplasts, polyfluorophosphazene, Polynorbomene, styrene-butadiene rubber, carboxy group-containing nitrile rubber or mixtures of one or more of these rubbers.
- thermoplastic polyesters such as thermoplastic polyesters (TPE-E), thermoplastic
- TPE-A uncrosslinked thermoplastic polyolefins
- TPE-O uncrosslinked thermoplastic polyolefins
- TPE-V partially crosslinked thermoplastic polyolefins
- TPE-S Styrene polymers
- TPE-U thermoplastic polyurethanes
- the porous polymers may have any cell types and cell sizes.
- Open-celled or closed-cell foams can be used, ie foams in which at least part of the individual pores are in contact with one another or in which all pores are present in the polymer matrix in isolation from one another.
- Typical pore sizes range from 10 ⁇ m to 3 mm.
- porous polymers used according to the invention can be prepared by chemical and / or physical foaming processes in a manner known per se.
- the processing can be done in any aggregates. Examples are kneaders, rolling mills or extruders. Processing can be dry or wet. s
- the foaming can already take place in the mixing units or in a subsequent step, for example by heating a rolled sheet in a heated press while reducing the pressing pressure or in an injection molding apparatus.
- Elastomeric foams are commonly processed using crosslinking agents. All common types can be used for this.
- crosslinking agents are sulfur, fatty acids such as lauric acid or stearic acid, crosslinking resins such as polymethylol phenolic resins, or compounds which also act as crosslinking accelerators.
- crosslinking resins such as polymethylol phenolic resins, or compounds which also act as crosslinking accelerators.
- crosslinking accelerators include, for example, thiurams, guanidines, thiazoles, xanthogenates, dithiocarbamates, thiazysulfenamides, dithiophosphates, peroxides, bisphenol triazine accelerators or quinone dioximes.
- crosslinking aid As a crosslinking aid all common types can be used. Preference is given to metal oxides, in particular magnesium or zinc oxide.
- ferromagnetic materials all materials can be used which have a ferromagnetic effect. It is preferable In this case ferromagnetic materials, which also also have a magnetostrictive effect in which so under the influence of a magnetic field changes at least one dimension.
- the ferromagnetic materials used according to the invention can be of the hard-magnetic or, preferably, of the soft-magnetic type, ie retain at least one residual magnetization after switching off the magnetic field or, preferably, lose the magnetization.
- the ferromagnetic materials are added in finely divided form to the porous polymer.
- the proportion of ferromagnetic particles in the molding b) is typically 10 to 70 vol.%, Based on the volume of the molding.
- the particles may have any shape, for example round, ellipsoidal, irregular or in the form of fibers.
- the mean diameter of these particles (D 50 value) can vary within wide limits. Typical particle diameters range from 0.1 ⁇ m to 1 mm, preferably from 10 to 300 ⁇ m.
- conglomerates of such particles can take different forms. These may be reticulated structures, e.g. to deal with percolation networks of fibers.
- Preferably used ferromagnetic materials contain cobalt and / or nickel and / or in particular iron.
- cobalt, nickel or, in particular, iron powder are used.
- ferromagnetic and magnetostrictive materials are, for example, metal mixtures or metal alloys which are known from EP-A-361, 969, WO-A-00 / 33,324, US Pat. No. 6,273,965 and US Pat. No. 5,223,046 are known.
- Preferably used ferromagnetic materials include iron and / or cobalt and / or nickel as well as manganese, copper, rare earth metals or combinations of one or more of these metals.
- magnetostrictive materials are ferromagnetic alloys and contain iron and rare earth metals, especially ferromagnetic alloys containing terbium, dysprosium and iron.
- the invention also relates to a method for damping oscillations of an object comprising the measures: i) determining the oscillation spectrum of the object by at least one sensor, ii) generating a time-varying magnetic field whose time course is suitable at least a part of
- the invention also relates to a method for passive vibration damping.
- It is a method for damping vibrations of an object comprising the measures: v) generating a magnetic field of predetermined size in a device a) as defined above, vi) acting on at least one above-defined molded part b) and thereby the damping properties of this Molded part influenced in a predetermined manner.
- Another method of the invention relates to determining the change in the dimensions of an article. This comprises the measures: vii) acting on a molded part b) as defined above so that at least one dimension of the molded part b) changes as the size of the article changes; and viii) determining the thickness of the molded article by the dimensional change of the molded article b) generated magnetic field by induction of an electric current in an electrical conductor, which is located in the vicinity of the molding b).
- Yet another inventive method relates to the targeted change in the position of an object.
- This comprises the measures: ix) generating a magnetic field of predetermined size in one of the above-defined device a) which x) acts on at least one above-defined molded part b) and thereby affects the dimensions of the molded part in a predetermined manner, and xi) acting on the article b) the article, so that this is thereby moved in a predetermined manner.
- the invention also relates to the use of porous polymers containing ferromagnetic particles as the actuator, and the use of porous polymers containing ferromagnetic particles as a damping element for vibrations, and the use of porous polymers containing ferromagnetic particles as a sensor for mechanical changes of objects, in particular as a vibration sensor.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Vibration Prevention Devices (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0513450-1A BRPI0513450A (pt) | 2004-07-17 | 2005-02-22 | elemento magnetoestrictivo e seu uso |
EP05804921.4A EP1769543B1 (de) | 2004-07-17 | 2005-02-22 | Magnetostriktives element und dessen verwendung |
JP2007521804A JP4842941B2 (ja) | 2004-07-17 | 2005-02-22 | 磁歪素子およびその使用 |
US11/632,674 US8502635B2 (en) | 2004-07-17 | 2005-02-22 | Magnetostrictive element and use thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004034723A DE102004034723A1 (de) | 2004-07-17 | 2004-07-17 | Magnetostriktives Element und dessen Verwendung |
DE102004034723.9 | 2004-07-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006007882A1 true WO2006007882A1 (de) | 2006-01-26 |
Family
ID=34962604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/001794 WO2006007882A1 (de) | 2004-07-17 | 2005-02-22 | Magnetostriktives element und dessen verwendung |
Country Status (6)
Country | Link |
---|---|
US (1) | US8502635B2 (de) |
EP (1) | EP1769543B1 (de) |
JP (1) | JP4842941B2 (de) |
BR (1) | BRPI0513450A (de) |
DE (1) | DE102004034723A1 (de) |
WO (1) | WO2006007882A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102009001769A1 (de) | 2008-03-28 | 2009-10-01 | Basf Se | Magnetorheologische Elastomere |
US8282851B2 (en) | 2006-12-20 | 2012-10-09 | Basf Se | Anisotropic cellular elastomers |
WO2018189088A1 (en) | 2017-04-10 | 2018-10-18 | Basf Se | Dispersion of magnetizable particles in polyol, its preparation and use |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992020829A1 (en) * | 1991-05-22 | 1992-11-26 | Proengco Ab | Magnetostrictive powder composite and methods for the manufacture thereof |
US20030168295A1 (en) * | 2002-02-12 | 2003-09-11 | Zhixiu Han | Active vibration isolation system |
WO2003075290A1 (en) * | 2002-02-28 | 2003-09-12 | The Regents Of The University Of California | Directionally oriented particle composites |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2433898A (en) * | 1942-11-23 | 1948-01-06 | Permoflux Corp | Magnetostrictive vibrator unit |
US3389274A (en) * | 1965-12-06 | 1968-06-18 | Perkin Elmer Corp | Peristaltic actuator |
DE1694049A1 (de) * | 1967-08-31 | 1971-05-27 | Elastomer Ag | Zellige Polymere und daraus hergestellte Koerper |
GB2037087A (en) * | 1978-12-11 | 1980-07-02 | Kumagawa O | A transformer covered with thermoplastic resin and a method for covering it |
US4710709A (en) * | 1983-11-04 | 1987-12-01 | Allied Corporation | Magnetomechanical transducers utilizing resonant frequency shifts to measure displacement of an object |
US4845450A (en) * | 1986-06-02 | 1989-07-04 | Raytheon Company | Self-biased modular magnetostrictive driver and transducer |
EP0361969B1 (de) * | 1988-09-29 | 1996-07-03 | Kabushiki Kaisha Toshiba | Supermagnetostriktive Legierung |
US5223046A (en) | 1988-09-29 | 1993-06-29 | Kabushiki Kaisha Toshiba | Super-magnetostrictive alloy |
JP2658433B2 (ja) * | 1989-10-06 | 1997-09-30 | 日本合成ゴム株式会社 | 架橋発泡用成形物 |
US5072158A (en) * | 1990-10-16 | 1991-12-10 | Ilc Technology, Inc. | Silent lamp igniter |
JPH04231750A (ja) * | 1990-12-28 | 1992-08-20 | Nissan Motor Co Ltd | 防振支持装置 |
US5792284A (en) * | 1991-05-22 | 1998-08-11 | Fox Technology Kb | Magnetostrictive powder composite and methods for the manufacture thereof |
US5770401A (en) | 1991-10-15 | 1998-06-23 | Mullarkey; Michael F. | Methods and compositions for treating allergic reactions |
US5453291A (en) * | 1993-05-25 | 1995-09-26 | Honda Giken Kogyo Kabushiki Kaisha | FRP member and method of detecting internal damage therein |
US5440278A (en) * | 1994-03-25 | 1995-08-08 | Bartholomew; Darin | Ferrite system for modulating, phase shifting, or attenuating radio frequency energy |
JP3627342B2 (ja) * | 1996-01-31 | 2005-03-09 | Jsr株式会社 | 磁性ポリマー粒子およびその製造方法 |
US6273965B1 (en) | 1996-10-18 | 2001-08-14 | Iowa State University Research Foundation, Inc. | Magnetostrictive materials and method for improving AC characteristics in same |
JPH11202035A (ja) * | 1997-11-17 | 1999-07-30 | Unitika Ltd | 磁気センサ素子 |
US6273966B1 (en) | 1998-12-03 | 2001-08-14 | Etrema Products, Inc. | High performance rare earth-transition metal magnetostrictive materials |
US6397661B1 (en) * | 1998-12-30 | 2002-06-04 | University Of Kentucky Research Foundation | Remote magneto-elastic analyte, viscosity and temperature sensing apparatus and associated methods of sensing |
DE10195948T1 (de) * | 2000-03-22 | 2003-07-10 | Siemens Vdo Automotive Corp N | Verfahren zum Steuern eines selbstabtastenden magnetostriktiven Stellgliedes |
US20020004543A1 (en) * | 2000-04-28 | 2002-01-10 | Carman Greg P. | Damping in composite materials through domain wall motion |
JP2002278425A (ja) * | 2001-01-10 | 2002-09-27 | Bridgestone Corp | トナーシール材及びプロセスカートリッジ |
US6847153B1 (en) * | 2001-06-13 | 2005-01-25 | The United States Of America As Represented By The Secretary Of The Navy | Polyurethane electrostriction |
US6775137B2 (en) | 2002-11-25 | 2004-08-10 | International Business Machines Corporation | Method and apparatus for combined air and liquid cooling of stacked electronics components |
JP3870936B2 (ja) * | 2003-07-14 | 2007-01-24 | 株式会社村田製作所 | 積層セラミック電子部品 |
-
2004
- 2004-07-17 DE DE102004034723A patent/DE102004034723A1/de not_active Withdrawn
-
2005
- 2005-02-22 JP JP2007521804A patent/JP4842941B2/ja not_active Expired - Fee Related
- 2005-02-22 US US11/632,674 patent/US8502635B2/en active Active
- 2005-02-22 EP EP05804921.4A patent/EP1769543B1/de not_active Not-in-force
- 2005-02-22 BR BRPI0513450-1A patent/BRPI0513450A/pt not_active IP Right Cessation
- 2005-02-22 WO PCT/EP2005/001794 patent/WO2006007882A1/de active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992020829A1 (en) * | 1991-05-22 | 1992-11-26 | Proengco Ab | Magnetostrictive powder composite and methods for the manufacture thereof |
US20030168295A1 (en) * | 2002-02-12 | 2003-09-11 | Zhixiu Han | Active vibration isolation system |
WO2003075290A1 (en) * | 2002-02-28 | 2003-09-12 | The Regents Of The University Of California | Directionally oriented particle composites |
Non-Patent Citations (5)
Title |
---|
BEDNAREK S: "The giant magnetostriction in ferromagnetic composites within an elastomer matrix", APPLIED PHYSICS A (MATERIALS SCIENCE PROCESSING) SPRINGER-VERLAG GERMANY, vol. 68, no. 1, January 1999 (1999-01-01), pages 63 - 67, XP002330081, ISSN: 0947-8396 * |
BELLAN C ET AL: "Field dependence of viscoelastic properties of MR elastomers", INTERNATIONAL JOURNAL OF MODERN PHYSICS B WORLD SCIENTIFIC SINGAPORE, vol. 16, no. 17-18, 20 July 2002 (2002-07-20), pages 2447 - 2453, XP009048159, ISSN: 0217-9792 * |
FARSHAD M AND BENINE A: "Magnetoactive elastomer polymers", POLYMER TESTING, vol. 23, no. 3, May 2004 (2004-05-01), pages 347 - 353, XP002330083 * |
GINDER J M ET AL: "Magnetostrictive phenomena in magnetorheological elastomers", INTERNATIONAL JOURNAL OF MODERN PHYSICS B WORLD SCIENTIFIC SINGAPORE, vol. 16, no. 17-18, 20 July 2002 (2002-07-20), pages 2412 - 2418, XP009048165, ISSN: 0217-9792 * |
PULLIAM W, MCNIGHT G AND CARMAN G: "Recent Advances in Magnetostrictive Particulate Composite Technology", SMART STRUCTURES AND MATERIALS 2002. INDUSTRIAL AND COMMERCIAL APPLICATIONS OF SMART STRUCTURES TECHNOLOGIES 18-21 MARCH 2002 SAN DIEGO, CA, USA, vol. 4698, 2002, Proceedings of the SPIE - The International Society for Optical Engineering SPIE-Int. Soc. Opt. Eng USA, pages 271 - 281, XP002330082, ISSN: 0277-786X * |
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US8282851B2 (en) | 2006-12-20 | 2012-10-09 | Basf Se | Anisotropic cellular elastomers |
JP2009144910A (ja) * | 2007-08-29 | 2009-07-02 | Nok Corp | フォーム製の磁気封止要素を持つ弁 |
US8079568B2 (en) * | 2007-08-29 | 2011-12-20 | Carl Freudenberg Kg | Valve with magnetic sealing element made of foam |
DE102009001769A1 (de) | 2008-03-28 | 2009-10-01 | Basf Se | Magnetorheologische Elastomere |
WO2018189088A1 (en) | 2017-04-10 | 2018-10-18 | Basf Se | Dispersion of magnetizable particles in polyol, its preparation and use |
Also Published As
Publication number | Publication date |
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JP4842941B2 (ja) | 2011-12-21 |
BRPI0513450A (pt) | 2008-05-06 |
EP1769543A1 (de) | 2007-04-04 |
US20070241849A1 (en) | 2007-10-18 |
JP2008507142A (ja) | 2008-03-06 |
EP1769543B1 (de) | 2014-01-22 |
US8502635B2 (en) | 2013-08-06 |
DE102004034723A1 (de) | 2006-02-09 |
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