CN104100612A - Joining or fastening components containing a shape memory polymer - Google Patents
Joining or fastening components containing a shape memory polymer Download PDFInfo
- Publication number
- CN104100612A CN104100612A CN201310659409.XA CN201310659409A CN104100612A CN 104100612 A CN104100612 A CN 104100612A CN 201310659409 A CN201310659409 A CN 201310659409A CN 104100612 A CN104100612 A CN 104100612A
- Authority
- CN
- China
- Prior art keywords
- component
- shape
- wall
- recess
- releasable connection
- 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.)
- Pending
Links
- 229920000431 shape-memory polymer Polymers 0.000 title claims abstract description 106
- 230000004044 response Effects 0.000 claims description 6
- 238000012163 sequencing technique Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 14
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 description 17
- 238000000034 method Methods 0.000 description 16
- 230000001052 transient effect Effects 0.000 description 16
- 230000008859 change Effects 0.000 description 10
- 229920001577 copolymer Polymers 0.000 description 10
- 239000000758 substrate Substances 0.000 description 10
- -1 alkene acid amides Chemical class 0.000 description 9
- 238000001816 cooling Methods 0.000 description 9
- 230000005494 condensation Effects 0.000 description 6
- 238000009833 condensation Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 238000009472 formulation Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000012781 shape memory material Substances 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical class OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 229920002959 polymer blend Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- 239000004634 thermosetting polymer Substances 0.000 description 2
- JJYWRQLLQAKNAD-UHFFFAOYSA-N 2-methylpent-2-enoic acid Chemical compound CCC=C(C)C(O)=O JJYWRQLLQAKNAD-UHFFFAOYSA-N 0.000 description 1
- 241000272814 Anser sp. Species 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Polymers OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 229920002845 Poly(methacrylic acid) Polymers 0.000 description 1
- 229920002319 Poly(methyl acrylate) Polymers 0.000 description 1
- 229920001283 Polyalkylene terephthalate Chemical class 0.000 description 1
- 229920002732 Polyanhydride Polymers 0.000 description 1
- 229920002614 Polyether block amide Polymers 0.000 description 1
- 229920000954 Polyglycolide Polymers 0.000 description 1
- 229920001710 Polyorthoester Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 206010000496 acne Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- FZTMYIGKWQQJIX-UHFFFAOYSA-N butyl prop-2-enoate;2-methylprop-2-enoic acid Chemical compound CC(=C)C(O)=O.CC(=C)C(O)=O.CCCCOC(=O)C=C FZTMYIGKWQQJIX-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 229920005570 flexible polymer Polymers 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N glycolonitrile Natural products N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000002868 norbornyl group Chemical group C12(CCC(CC1)C2)* 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 125000002958 pentadecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000233 poly(alkylene oxides) Chemical class 0.000 description 1
- 229920001308 poly(aminoacid) Polymers 0.000 description 1
- 229920001490 poly(butyl methacrylate) polymer Polymers 0.000 description 1
- 229920000196 poly(lauryl methacrylate) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002627 poly(phosphazenes) Polymers 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 229920001610 polycaprolactone Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920001290 polyvinyl ester Chemical class 0.000 description 1
- 229920001289 polyvinyl ether Chemical class 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229960000834 vinyl ether Drugs 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- KAKZBPTYRLMSJV-UHFFFAOYSA-N vinyl-ethylene Natural products C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
- F16B5/0607—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other
- F16B5/0621—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship
- F16B5/0635—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship fastened over the edges of the sheets or plates
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/77—Use of a shape-memory material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermally Actuated Switches (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
A releasable connection connects a first component to a second component. The second component includes and is manufactured from a Shape Memory Polymer (SMP), and defines a pocket. The first component includes a portion disposed within the pocket. The pocket is deformed from an initial shape permitting insertion of the portion into the pocket to assembly the releasable connection into a connected shape wherein the pocket is deformed to secure the first component relative to the second component. The pocket is transformed from the initial shape into the connected shape by heating the SMP material of the second component to a switching temperature. Re-heating the SMP second component to the switching temperature returns the pocket back to the initial shape from the connected shape to disassembly the releasable connection.
Description
The cross reference of related application
The application is the continuous application of the U.S. Patent application 12/703,337 of submission on February 10th, 2010.
Technical field
Present invention relates in general to the releasable connection between first component and the second shape-memory polymer (SMP) parts.
Background technique
Many manufacturing a product needs first component to be releasably connected to second component, and first component must be connected to second component in the mode that allows first component to remove from second component.Such releasable connection typically comprises machanical fastener that independent workpiece is kept together etc.Machanical fastener is removed, thereby takes workpiece apart.Alternatively, utilized tackiness agent that various workpiece are bonded together.Separately the adhesive bond between workpiece must be destroyed be fallen so that workpiece is taken apart.
Summary of the invention
The method of the releasable connection between the second component of manufacturing first component and being made by shape-memory polymer is disclosed.The method comprises second component is formed to original shape to limit recess.The method further comprises a part for first component is inserted in recess.The method also comprises second component is heated to switch temperature, and wherein second component is ductility under switch temperature.The method also comprises that recess is deformed into is connected shape to catch first component and first component is fixed with respect to second component; And in the situation that keep recess be connected the cooling recess of shape.Recess is cooled until second component keeps being connected shape independently.Second component is ductility in response to second component is heated to switch temperature again, so that first component is discharged from recess.
In another aspect of this invention, releasable connection is disclosed.Releasable connection comprises the first component with the rigidity under switch temperature.This releasable connection also comprises second component, and the rigidity of second component under switch temperature is less than the rigidity of first component.Second component is made by shape-memory polymer, and limits recess.First component comprises the part being arranged in recess, and described recess forms and is connected shape, and this is connected shape and is configured to first component to fix with respect to second component.Recess can be converted to from being connected shape the original shape that is configured to discharge described part in response to second component is heated to switch temperature, allows thus described part to remove from recess.
In another aspect of this invention, releasable fastening piece is disclosed.This releasable fastening piece comprises base portion and tensile member.Tensile member is attached to base portion, and is made by shape-memory polymer.Tensile member comprises initial position, and is configured to from initial position, extend when being heated to switch temperature.From initial position, extend and allow the end of tensile member by the opening substrate.The end structure of tensile member is for returning to initial position cooling during lower than switch temperature, with the substrate between fixed base and end.
Correspondingly, this theme disclosure of the invention the releasable connection between first component and second component.Second component is made by shape-memory polymer, and this allows second component from original shape, to form and be connected shape when being heated to switch temperature.When being connected shape, second component is by first component fix in position.Like this, disclosed releasable connection and without any need for fastening piece or tackiness agent first component is connected to second component, the work of taking apart and ressembling that this has reduced the manufacture cost of releasable connection and has reduced this releasable connection.
According to the detailed description for execution most preferred embodiment of the present invention below in conjunction with accompanying drawing, above-mentioned feature and advantage of the present invention and further feature and advantage will be readily clear of clear.
Accompanying drawing explanation
Fig. 1 is the perspective schematic view of the first mode of execution of the releasable connection in disassembled state.
Fig. 2 is the perspective schematic view of the first mode of execution of the releasable connection in assembled state.
Fig. 3 is the perspective schematic view of the second mode of execution of the releasable connection in disassembled state.
Fig. 4 is the perspective schematic view of the second mode of execution of the releasable connection in assembled state.
Fig. 5 is in the perspective schematic view of the 3rd mode of execution of the releasable connection of assembled state partly.
Fig. 6 A, 6B, 6C and 6D are the schematic cross section of the 3rd mode of execution of described releasable connection.
Fig. 7 is the perspective schematic view of the 4th mode of execution of the releasable connection in disassembled state.
Fig. 8 is the perspective schematic view of the 4th mode of execution of the releasable connection in assembled state.
Fig. 9 is the perspective schematic view of releasable fastening piece.
Figure 10 is the perspective schematic view that is inserted through the releasable fastening piece of substrate.
Figure 11 is the perspective schematic view of the releasable fastening piece of stationary base.
Embodiment
With reference to accompanying drawing, wherein, in whole accompanying drawings, same reference character indicates same parts, and releasable connection is depicted as reference character 20 generally.Releasable connection 20 comprises first component 22 and second component 24.Second component 24 is made by shape-memory polymer (SMP).
Heat activated SMP experiences obvious modulus and declines in the characteristic temperature that is known as switch temperature (Tx), for example, the storage modulus of SMP based on polyurethane drops to the storage modulus of the approximate 4MPa at the temperature higher than its Tg in the scope of approximate 20 ℃ from the storage modulus of the approximate 131MPa under its glass transition temperature (Tg, the switch temperature of this SMP).Surpass this point, SMP shows limited (typically 10 ℃ or more than) alutaceous plateau, and wherein modulus remains low value and material can easily be out of shape (for example,, in some instances until 300%) and not cause irreversible damage.
SMP is normally defined and comprises permanent shape and temporary transient shape.Permanent shape is the shape of manufacturing, and SMP attempts to revert to this permanent shape and is not subject to any load and do not have the obstacle that stops this reduction when higher than switch temperature.Temporary transient shape is the shape being deformed to because of external force or obstacle when switch temperature is above.SMP can preserve the time period extending with temporary transient shape, does not promote the stimulation that SMP reverts to permanent shape, for example heat as long as SMP is not exposed to.But SMP can comprise tri-state shape-memory polymer, it can remember permanent shape and intermediate shape, and wherein intermediate shape limits under the high temperature of SMP and the medium temperature between low temperature.If use tri-state SMP, temporary transient shape, for example disassembled state, and permanent shape, for example assembled state can be programmed in SMP.Therefore the problem of, using tri-state SMP to be transformed into intended shape is only SMP to be heated to suitable temperature to obtain any one in intermediate shape or permanent shape.
SMP is generally described as and comprises switch temperature, mold temperature and adiabatic condensation temperature.Mold temperature is greater than switch temperature, and switch temperature is greater than adiabatic condensation temperature, i.e. mold temperature > switch temperature > adiabatic condensation temperature.Switch temperature is the temperature that minimum change occurs the characteristic of SMP.But under switch temperature, can not there is change sharply in the characteristic of SMP, to fix softer material, the shape sequencing of SMP can occur under mold temperature.Similarly, when cooling, SMP can not recover its whole initial characteristic sharp in switch temperature.Therefore, SMP can be cooled to adiabatic condensation temperature to guarantee the recovery completely of the permanent shape of SMP.
First component 22 comprises the rigidity under switch temperature.Second component 24 limits recess 26, and is included in the rigidity under switch temperature or at above temperature, and this rigidity is less than the rigidity of first component 22 under switch temperature.More specifically, first component 22 comprises with second component 24 compares significantly little rigidity in the rigidity under junction temperature, to guarantee that first component 22 is indeformable when being heated between the erecting stage of releasable connection 20.
First component 22 comprises the part 28 being arranged in recess 26.Recess 26 from allow part 28 insert original shape recesses 26 form be configured to by first component 22 with respect to second component 24 fixing be connected shape.Therefore, second component 24 comprised original shape before assembling.Between erecting stage, the part of first component 22 28 is inserted in recesses 26, and recess 26 forms and is connected shape so that part 28 is fixed in recess 26.If be connected shape, be permanent shape, recess 26 transforms to and is connected shape and can when second component 24 is heated to switch temperature, occurs from original shape.In addition, using and be connected the strong connection that shape provides opposing to take apart as permanent shape.If be connected shape, be permanent shape, recess 26 transforms to and is connected shape and can becomes and be connected shape and occur when keeping being connected shape second component 24 is cooling second component 24 being heated to 26 distortion of switch temperature, recess from original shape.In addition, usining original shape allows easily taking apart the property of releasable connection 20 as permanent shape.Because first component 22 comprises that the rigidity when the switch temperature is compared the higher rigidity under switch temperature with second component 24, when recess 26 forms while being connected shape from original shape, the shape of first component 22 does not change.The original shape that should be understood that SMP can be the arbitrary shape in temporary transient shape and permanent shape, and be connected shape, is another shape in temporary transient shape and permanent shape.
Due to the characteristic of SMP second component 24, recess 26 can be converted into original shape to discharge the part 28 of first component 22 from being connected shape.When original shape acts on or hinders the recovery of SMP as permanent shape and without external load, recess 26 is converted back to original shape in response to second component 24 is heated to switch temperature from being connected shape.If original shape is temporary transient shape, external force puts on recess 26 to allow part 28 to discharge from recess 26 under the mold temperature of SMP.In arbitrary situation, it is straightforward that part 28 is removed for being safeguarded etc. from recess 26.
With reference to Fig. 1 and 2, show the first alternate embodiments of releasable connection 20.Releasable connection 20 is shown as the connection with slit in Fig. 1 and 2.Second component 24 comprises base portion 30, first wall 32 and the second wall 34.First wall 32 and the second wall 34 are arranged on the contrary side of base portion 30 relative to one another.Base portion 30, first wall 32 and the second wall 34 along the longitudinal axis 36 extend.Recess 26 comprises by base portion 30, first wall 32 and the second wall 34 and limits and be limited to the passage between it.Recess 26 along the longitudinal axis 36 extends.First component 22 be arranged in the end 28 that part 28 in recess 26 comprises protuberance, wherein the end 28 of protuberance comprises that axis 36 along the longitudinal extends the cylindrical section 28 of intended distances.
As shown in Figure 1, first wall 32 and the second wall 34 are vertical with respect to base portion 30 and limit rectangular recess 26 substantially substantially under their original shape.Be converted into shown in Fig. 2 be connected shape time, the distal edge of first wall 32 and the second wall 34, inwardly curling so that the cylindrical section of first component 22 28 is impaled toward each other apart from base portion 30 edge farthest, and limit the recess 26 of cylindricality substantially.Therefore, the cylindrical section 28 of first component 22 can move in the recess 26 of cylindricality.Should be appreciated that, the movement of cylindrical section 28 in the recess 26 of cylindricality comprises the i.e. predetermined movement along the formulation of plane or axis, and do not comprise the minute movement causing because of the excessive wear of releasable connection 20 and/or the inappropriate assembling of releasable connection 20.More specifically, first component 22 can move slidably with respect to second component 24 in recess 26.In addition, second component 24 is adjustable with respect to the resistance of the movement of first component 22.Mobile resistance can for example regulate by gap and/or the contact changing between cylindrical section 28 and the recess 26 of cylindricality.Like this, mobile resistance can be by regulating the geometrical construction of releasable connection 20 to regulate to change gap and/or contact, to consider releasable connection 20 wearing and tearing in time.
As above sketch, when forming the permanent shape of the SMP of recess 26, it is original shape, and when any external load discharging from the recess 26 of second component 24 at the cylindrical section 28 of without hindrance first component 22 or obstacle, first wall 32 and the second wall 34 can return to their original shape, i.e. rectangular shape when being heated to switch temperature.
With reference to figure 3 and 4, show the second alternate embodiments of releasable connection 20.This releasable connection 20 is shown as hinge in Fig. 3 and 4.Second component 24 comprises base portion 38, first wall 40 and the second wall 42.First wall 40 and the second wall 42 are arranged on the reverse side of base portion 38 relative to one another, and axis 44 extends along the longitudinal.Each in first wall 40 and the second wall 42 comprises the spaced a plurality of fins 46 of axis 44 along the longitudinal.Between the fin 46 of each phase adjacency pair, limit gap.Therefore, each in first wall 40 and the second wall 42 comprises a plurality of gaps 48 that are arranged between fin 46.As directed, the fin on first wall 40 along the longitudinal axis 44 departs from the fin 46 on the second wall 42.However, it should be understood that, the fin 46 on first wall 40 and the second wall 42 can alternatively be arranged to directly opposite one another.Recess 26 comprises by base portion 38, first wall 40 and the second wall 42 and limits and be limited to the passage between it.More specifically, recess 26 is limited by the fin 46 of base portion 38, first wall 40 and the fin 46 of the second wall 42.Recess 26 along the longitudinal axis 44 extends.The part 28 being arranged in recess 26 of first component 22 comprises the columnar shaft part 28 that axis 44 extends along the longitudinal.
As shown in Figure 3, the fin 46 of first wall 40 and the fin 46 of the second wall 42 arrange in the mode of cardinal principle level with respect to base portion 38, and limit substantially open spill when original shape in them.Original shape shown in Fig. 3 is the permanent shape of SMP.When being converted into being connected shape and being the temporary transient shape of SMP shown in Fig. 4, the fin 46 on first wall 40 and the second wall 42 toward each other upwards and curve inwardly to impale the columnar shaft part 28 of first component 22, and limits the recess 26 of cylindricality substantially.Therefore, the columnar shaft part 28 of first component 22 can move in the recess 26 of cylindricality.Should be appreciated that, the movement of columnar shaft part 28 in the recess 26 of cylindricality comprises the i.e. predetermined movement along the formulation of plane or axis, and do not comprise the minute movement causing because of the excessive wear of releasable connection 20 and/or the inappropriate assembling of releasable connection 20.More specifically, first component 22 can be with respect to second component 24 around longitudinal axis 44 rotations.In addition, second component 24 is adjustable with respect to the resistance of the movement of first component 22.This mobile resistance can for example regulate by the gap between change cylindrical section 28 and cylindricality recess 26 and/or contact.Like this, mobile resistance can change gap and/or contact by adjusting the physical dimension of releasable connection 20, to consider releasable connection 20 wearing and tearing in time.
As above sketch, in the situation that the columnar shaft part 28 of without hindrance first component 22 is from any external force or the obstacle of recess 26 releases of second component 24, first wall 40 and the second wall 42 can automatically turn back to their original shape when being heated to switch temperature, i.e. open concave shape substantially.
With reference to figure 5 and 6A to 6D, show the 3rd alternate embodiments of releasable connection 20.In Fig. 5 and 6A to 6D, releasable connection 20 is shown as dismountable trim tab.Second component 24 comprises base portion 50, first wall 52 and the second wall 54.First wall 52 and the second wall 54 face with each other and are arranged on the opposite side-edge of base portion 50.Base portion 50, first wall 52 and the second wall 54 be Axis Extension along the longitudinal.Recess 26 comprises by base portion 50, first wall 52 and the second wall 54 and limits and be limited to the passage between it.Recess 26 is Axis Extension along the longitudinal.Each includes the ridge 56 on the distal edge that is arranged in first wall 52 and the second wall 54 first wall 52 and the second wall 54, apart from base portion 50 limit farthest.Ridge 56 extends inward in recess 26 toward each other.The part 28 being arranged in recess 26 of first component 22 comprises a plurality of latch portion 28.Latch portion 28 comprises a series of plane institution movements, and these a series of plane institution movements link together to limit the spring section 28 of rhombus substantially.The spring section 28 of rhombus is configured to bias voltage first wall 52 and the second wall 54 and is positioned between the two.But each includes at least one a pair of locating slot 58 preferably the spring section 28 of the rhombus of first component 22.When second component 24 is when being connected shape, locating slot 58 is arranged to engage with each ridge 56 interlocking in first wall 52 and the second wall 54 respectively.
As shown in Figure 5, first wall 52 and the second wall 54 comprise substantially shape longitudinally, and when the original shape in them substantially perpendicular to base portion 50 and limit rectangular recess 26 substantially.Because the part 28 being arranged in recess 26 of first component 22 comprises Telescopic spring part 28, the recess 26 of the 3rd alternate embodiments of releasable connection 20 does not need to be heated to switch temperature so that recess 26 transforms to and is connected shape from original shape.On the contrary, as shown in Figure 6B, in the time of in the spring section 28 of the rhombus of second component 24 is inserted into recess 26, locating slot 58 engages and engages with ridge 56 with interlocking, is interlocked, and to limit, is connected shape.However, it should be understood that, one of first component 22 and second component 24 or both are all heated to switch temperature and can become easy so that be inserted in recess 26.
With reference to figure 6C, for first component 22 is discharged from second component 24, second component 24 is heated to switch temperature or approach switch temperature, at this temperature, the spring force of the spring section 28 of rhombus is enough to first wall 52 to extend from the second wall 54, and the interlocking of removing thus between ridge 56 and locating slot 58 engages.Once the interlocking of ridge 56 and locating slot 58 departs from, first component 22 can be removed and recess 26 turns back to original shape from second component 24, as shown in Figure 6 D.
With reference to figure 7 and 8, show the 4th alternate embodiments of releasable connection 20.Releasable connection 20 is shown as sleeve pipe at Fig. 7 in 8 and is connected.Second component 24 comprises base portion 60 and wall 62.Base portion 60 and wall 62 cooperations limit recess 26.More specifically, base portion 60 and wall 62 limit the recess 26 of hemispherical dome shape.First component 22 be arranged in the end 28 that part 28 in recess 26 comprises protuberance.More specifically, the end 28 of protuberance comprises spherical part 28.
As shown in Figure 7, wall 62 comprises substantially the longitudinally wall 62 of cylindricality, and wall 62 deviates from base portion 60 and extends upward, and limits thus the recess 26 of cylindricality substantially when original shape.Be converted into the shape that is connected shown in Fig. 8, during temporary transient shape, the distal edge of cylindrical wall 62 is apart from base portion 60 edge farthest, curling to limit the recess 26 of hemispherical dome shape towards cylindrical wall 62 center.Therefore, first component 22 can move with respect to second component 24 in the recess 26 of second component 24.Should be appreciated that, the movement of spherical part 28 in the recess 26 of hemispherical dome shape comprises the i.e. predetermined movement along the formulation of plane or axis, and do not comprise the minute movement causing because of the excessive wear of releasable connection 20 and/or the inappropriate assembling of releasable connection 20.More specifically, the spherical part 28 of first component 22 can be in the recess 26 of hemispherical dome shape pivotable.In addition, second component 24 is adjustable with respect to the resistance of the movement of first component 22.This mobile resistance can for example regulate by the gap between change spherical part 28 and the recess 26 of hemispherical dome shape and/or contact.Like this, mobile resistance can change gap and/or contact by adjusting the physical dimension of releasable connection 20, to consider releasable connection 20 wearing and tearing in time.
If the cylindrical form of the wall shown in Fig. 7 62 is permanent shape of SMP, without any external force and/or obstacle in the situation that, wall 62 can return to original shape when being heated to switch temperature, be cylindrical form, thus the spherical part of first component 22 28 discharged from the recess 26 of second component 24.
With reference to figure 9,10 and 11, show overall releasable fastening piece 64.Releasable fastening piece 64 comprises base portion 66 and tensile member 68.Tensile member 68 is attached to base portion 66, and comprises shape-memory polymer (SMP) and made by shape-memory polymer (SMP).
Preferably, tensile member 68 comprises curve member, and limits initial position.Preferably, the initial position of tensile member 68 comprises winding position, and this is also the permanent shape of SMP.But, should be appreciated that, initial position can be included in this unshowned other position, the structure separating such as front and back.Tensile member 68 can extend from initial position when being heated to switch temperature.Figure 10 shows the tensile member 68 of the temporary position in SMP.The temporary position of SMP is realized as follows: tensile member 68 is heated to switch temperature above and apply force to tensile member and become extension so that tensile member 68 is pulled out, the structure extending, is then cooled to tensile member 68 switch temperature following to be locked in the temporary position of SMP.Tensile member 68 will keep temporary position, until more than being heated to switch temperature.As shown in figure 10, make tensile member 68 extend to allow the end of tensile member 68 through the opening 70 in substrate 72.Figure 11 shows the permanent shape of partly being recovered of tensile member 68.The permanent shape of partly recovering realizes as follows: when in temporary transient shape, tensile member 68 is passed through in opening 70 basements, keep fastening piece 64 with respect to the relative position of substrate 72 and tensile member 68 be heated to switch temperature, and for tensile member 68 without any external load or the obstacle except substrate 72.Cooling tensile member is locked in the permanent shape that is heated to switch temperature or above SMP unit.Like this, once be heated to switch temperature, tensile member 68 extend through opening 70 without constraint portions, be converted back to permanent shape, roll shape, and restore the part that is tied being stoped by substrate 72, remain on the temporary transient shape of partly restoring.Therefore, as shown in figure 11, the end of tensile member 68 is configured to turn back to the initial position of tensile member 68 when cooling.Once the end of tensile member 68 is back to initial position, roll shape, the end of rolling of tensile member is fixed on substrate 72 base portion 66 of tensile member 68 and rolls between end.
The releasable connection 20 realizing by releasable fastening piece 64 can disconnect as follows: the end of tensile member 28 is heated to switch temperature, and applies expansionary force so that tensile member 68 stretches, make thus tensile member 68 straighten.Once the end of tensile member 68 straightens, tensile member 68 can be pulled through the opening 70 in substrate 72, discharges thus substrate 72.Because tensile member 68 is cooling, tensile member 68 is back to original shape in the situation that being not applied to external force or obstacle.
The present invention discloses the method for manufacturing releasable connection 20 in addition.As mentioned above, releasable connection 20 is between first component 22 and second component 24, and wherein second component 24 comprises shape-memory polymer and made by shape-memory polymer.Below illustrate in greater detail the details of SMP.The method comprises second component 24 is formed to original shape to limit recess 26.Recess 26 can comprise any suitable size, shape and/or structure, such as the recess 26 of the rectangular shape of Axis Extension along the longitudinal, or the recess 26 of cylindricality as above.Should be appreciated that, the original shape of recess 26 is not limited to recess 26 described herein, and can comprise other original shape.
The method further comprises the part of first component 22 28 is inserted in recess 26.The part 28 of first component 22 is inserted into recess 26 during the original shape in recess 26 at recess 26, the original shape of recess 26 allows part 28 to insert wherein.The part 28 of first component 22 can comprise any suitable shape, size and/or structure, the spring section 28 of all cylindrical section 28, spherical part 28 or rhombuses as described above in detail.Should be appreciated that, the part 28 of first component 22 can comprise shape, size and/or the structure except described herein.
The method comprise in addition by second component 24 be heated to switch temperature or more than.More specifically, second component 24 can be heated to mold temperature so that the sequencing of SMP is easy.Switch temperature is such temperature, and at this temperature, SMP is converted to soft, alutaceous state, allows thus the distortion of SMP.Therefore, second component 24 when switch temperature or above be ductility.In addition, the rigidity of second component 24 is less than the rigidity of first component 22 under switch temperature, and this shape of guaranteeing first component 22 does not change.Second component 24 can heat in any suitable manner, includes but not limited to Hot-blast Heating or to heat in molten bath.
If be connected the temporary transient shape that shape is equivalent to SMP, described method also comprises: once second component 24 is heated to switch temperature or goose pimples, makes recess 26 distortion become and be connected shape.But, if be connected the permanent shape that shape is equivalent to SMP, in the situation that beyond associated with the continuous phase of first component 22 and second component 24 without any external force and obstacle, recess 26 is out of shape become to be connected shape and only requires the SMP of second component 24 to be heated to mold temperature.Recess 26 is deformed to clamp first component 22 and first component 22 is fixing with respect to second component 24.Recess 26 distortion is become be connected shape to comprise recess 26 is formed to any suitable shape that is connected from original shape, such as the recess 26 of cylindricality recess 26 as above or hemispherical dome shape.Should be appreciated that, recess 26 can be out of shape become or explanation not shown at this other be connected shape.Recess 26 distortion is become be connected shape to realize by any suitable mode, such as applying pressure to recess 26 or forming and be connected shape in mould.Particularly, can use special tool side by side to heat and shaping SMP, to limit recess 26.Special tool allows SMP to form consistent temporary transient shape.Preferably, special tool heating SMP, and apply force to SMP when SMP is hot, SMP is fitted in pattern or pattern, and lower SMP is remained under this shape SMP is cooling.But, should be appreciated that, this special tool can be by carrying out work at this unaccounted alternate manner.
The method is included in cooling recess 26 in the situation that is connected shape that keeps recess 26 in addition, until second component 24 keeps being connected shape independently.Recess 26 is cooled to below switch temperature, and more specifically, recess is cooled to adiabatic condensation temperature or following.Therefore, if exerted pressure, so that the original shape distortion of recess 26 becomes, be connected shape, can keep this pressure until the SMP material cooled of second component 24.Once the SMP of second component 24 is cooled to below switch temperature, second component 24 keeps being connected shape, and pressure can be removed.But preferably the SMP of second component 24 is allowed to be cooled to temperature below adiabatic condensation temperature to guarantee the consistent characteristic of releasable connection 20.Should be appreciated that, when the SMP of second component 24 material cooled, the shape of the recess 26 being connected can be by keeping at this unaccounted alternate manner.
Intrinsic physical property due to SMP material, if original shape is equivalent to permanent shape, in the situation that can not stop any external force and/or the obstacle of recovery of shape, the recess 26 of second component 24 can return to original shape from being connected shape in response to second component 24 is reheated switch temperature.Alternatively, if original shape is equivalent to temporary transient shape, in the situation that apply power so that the SMP of second component 24 is temporarily out of shape to allow separating of releasable connection 20, the recess 26 of second component 24 can return to original shape from being connected shape in response to second component 24 is reheated mold temperature.Recess 26 returns to original shape and allows first component 22 to discharge from the recess 26 of second component 24, removes.Like this, described method can comprise in addition and heats second component 24 so that the recess 26 of first component 22 is got back to original shape from being connected shape conversion again, to take releasable connection 20 apart.
The SMP of releasable connection 20 should comprise 1) than the sufficiently high junction temperature of the maximum operating temperature of releasable connection 20; 2) enough low to allow it to pass through the storage modulus under junction temperature that minimum force is flexibly out of shape; 3) the high elongation at failure under junction temperature, thus to allow SMP to be out of shape significantly, can form the complicated shape that produces strong and stable engagement; And 4) limited seemingly rubber plateau (typically >5 ℃).
Shape-memory polymer is the synthetic of such polymer molecule: these polymer molecules are raised to and are known as the characteristic temperature of switch temperature (Ts) and aspect their Young's modulus, are presenting obvious and reversible variation when above in their temperature.Sometimes the means that complete this temperature rising are called " activation " of shape-memory material.When the temperature of SMP is increased to its Ts when above, its Young's modulus conventionally with 10 100 or the higher order of magnitude reduce tempestuously.The SMP of one type is the one group of semi-crystalline co-polymers that comprises harder crystalline state section (or microcosmic phase) and softer amorphous state section (or microcosmic phase).In this example, the Ts of copolymer is the glass transition temperature (Tg) of soft Amorphous Phase.Soft amorphous state section is the low temperature softening phase of shape-memory polymer, and the Young's modulus of copolymer material temperature during higher than its Ts because the transformation of the vitreous state in amorphous phase to rubbery state sharply reduces.The current also SMP of known other type, wherein Ts is corresponding to the melting of a kind of phase in polymer.Although the illustrated mode of execution of this specification concentrates on the type of SMP as above, the present invention can be without too much extending to hardy the SMP of other type.
The second component 24 of being made by above-mentioned SMP is processed and is applied in permanent shape by thermomechanical at the temperature of the fusing point higher than hard phase (Tm).Be cooled to subsequently temperature below Ts and cause hard polymer (for example, E=800MPa, wherein E is the Young's modulus of polymer material at colder temperature).Material (for example, E=4MPa) exists, causes in this example that thus the Young's modulus of 200 times reduces as soft polymer under the temperature range between Ts and Tm.When material is in this temperature range higher than Ts, it can easily be deformed into different temporary transient shapes, is connected shape.The elastic elongation (or extension) of typical case SMP under its soft state is about 100% to about 300% in without permanent deformation situation.If polymer is not for example, by degradation (, because of plastic deformation, heating surpasses its oxidizing temperature etc.), initial permanent shape is that original shape can be by recovering its wet stain at the temperature of the Ts higher than softening phase without external load in the situation that.The stretching of 200%-300% can recover in this way at most.SMP material is known to be born hundreds of Heating Cyclic and is out of shape so that temporary transient shape to be set, and be connected shape, and/or heating is to recover permanent shape, i.e. original shape.
Releasable connection 20 of the present invention is utilized the low elastic modulus of flexible polymer state of SMP and the suitable differences between the high-modulus of hard polymer state, with being flexible coupling between model SMP second component 24 and first component 22, then keeps strong connection.First component 22 can be formed by any material with proper stiffness, to complete engaging process.In many cases, first component 22 can be metal parts.
In this specification, the important hot-working character of suitable shape-memory polymer described above.This SMP material also can differently utilize interpenetrating networks, semi-intercrossing network or hybrid network characteristic to turn to thermoplastic polymer, thermosetting polymer or thermoplasticity or thermosetting polymer.Polymer can be single polymer or polymer blend.Polymer can be to have side chain or the linearity of dendritic morphology element or the polymer elastomer of branch.Shape-memory material is characterised in that and has two-phase, amorphous state or glassy phase (or section) and semi-crystalline state or crystalline phase (or section).SMP is formed by suitable synthetic or many other copolymer synthetics of urethane copolymers, carbamate-diphenol copolymer, epoxy resin-ooze cyanogen copolymer.SMP material can be used for many application.Their purposes in the present invention's practice are to change based on being out of shape suitably to be connected between shape and original shape to a great extent, and under the expectation operating temperature of connected component, are strong suitably based on SMP.
Suitable shape-memory polymer comprises thermoplastic material, thermosets, interpenetrating networks, semi-intercrossing network or hybrid network.Polymer can be single polymer or polymer blend.Polymer can be to have side chain or the linearity of dendritic morphology element or the thermoplastic elastomer (TPE) of branch.The suitable polymers parts that form shape-memory polymer include but not limited to, polyphosphazene, poly-(vinyl alochol), acid amides, polyesteramide, poly-(amino acid), polyanhydride, polycarbonate, polyacrylamide, poly-alkylene, poly-precious alkene acid amides, ployalkylene glycol, polyalkylene oxide, polyalkylene terephthalate, polyesters (polyortho esters), polyvinylether, polyvinyl ester class, polyethylene halogen family, polyester (polyesters), polyactide, polyglycolide, poly(silicon aether), polyurethane, polyethers, polyetheramides, PEE and their copolymer.The example of suitable polyacrylamide comprises poly-(methyl methacrylate), poly-(EMA), poly-(butyl methacrylate), poly-(methacrylic acid isobutyl fat), poly-((ethyl-methyl acrylic acid), poly-(isodecyl methacrylic acid), poly-(lauryl methacrylate), poly-(phenyl methyl acrylic acid), poly-(methyl acrylate), poly-(isopropylacrylic acid salt or ester), poly-(acryllic acid isobutyl ester) and poly-(octadecyl acrylate or ester).The example of other suitable polymers comprises polystyrene, polypropylene, polyethylene phenol, polyvinyl-pyrrolidone, chlorinated polybutylenes, poly-(octadecyl divinyl ether) ethene-vinyl acetate copolymer, polyethylene, poly-(ethylene oxide))-poly-(PETP), polyethylene/nylon (graft copolymer), polycaprolactone-acid amides (block copolymer), poly-(caprolactone) dimethacrylate-n-butyl acrylate, poly-(positive pentadecyl (norbornyl)-polyhedral oligomeric silsesquioxane), PVC＝polyvinyl chloride, carbamate/butadiene copolymer, polyurethane block copolymers, SBS etc.
According to the present invention, preferably the Ts of SMP second component can reach for bonding operation and higher than the expection operating temperature of mating part.The elastic modulus E of the SMP second component 24 of inactivation
inactivemodulus E with active SMP second component 24
activedifference in this engaging process, be important.Preferably, ratio E
inactive/ E
activebe reasonably high, the easy and efficient dislocation for shape-memory material in forming process keeps the high strength of institute's formation joint simultaneously.At least 10 ratio is suitable, and 50 to about 200 ratio is preferred.
The required temperature of permanent shape recovery can be set to the approximately arbitrary temp between-63 ℃ and about 120 ℃ conventionally, or higher.The formulation of the composition and structure of polymer itself can allow for the special temperature of expection application choice.Preferred temperature for recovery of shape is greater than about 120 ℃.
The most frequently used activation means of SMP parts is heat.But according to concrete SMP material, parts can utilize following means to activate for engaging, such as electricity, light or other electromagnetic radiation, pressure, vibration, the pH with proper frequency changes and/or binder content changes, water content for example.
Although described in detail for carrying out best mode of the present invention, those skilled in the art will recognize that within the scope of the appended claims for putting into practice various alternate design of the present invention and mode of execution.
Claims (10)
1. a releasable connection, comprising:
First component; With
Limit the second component of recess, by shape-memory polymer, made for one in wherein said first component and described second component, the rigidity of this shape-memory polymer under switch temperature is less than in described first component and described second component another at described switch temperature place or rigidity when above;
Described first component comprises the part being arranged in described recess, and wherein said recess forms and is connected shape, and this is connected shape and is configured to described first component to fix with respect to described second component;
In wherein said first component and described second component one can from original shape and described in be connected one of shape be transformed into described original shape and described in be connected another shape shape, to assemble or described part discharged from described recess in response to being heated to described switch temperature.
2. releasable connection according to claim 1, wherein, the described part of described first component comprises the end of protuberance.
3. releasable connection according to claim 2, wherein, the end of described protuberance comprises one of cylindrical section and spherical part.
4. releasable connection according to claim 3, wherein, described first component can move with respect to described second component.
5. releasable connection according to claim 1, wherein, described second component comprises base portion, first wall and the second wall, and wherein said recess comprises by described base portion, described first wall and described the second wall in the described passage limiting while being connected shape.
6. releasable connection according to claim 5, wherein, in described first wall and described the second wall, each includes a plurality of fins, between described a plurality of fins, limits a plurality of gaps.
7. releasable connection according to claim 6, wherein, it is staggered that described a plurality of fins of described first wall cross longitudinal axis with respect to described a plurality of fins of described the second wall.
8. releasable connection according to claim 7, wherein, it is relative with the gap in described the second wall that each in described a plurality of fins of described first wall is arranged to cross described longitudinal axis, and each in the described a plurality of fins in wherein said the second wall to be arranged to cross described longitudinal axis relative with the gap in described first wall.
9. releasable connection according to claim 5, wherein, described recess comprises ridge, and described part comprises being configured to interlock and engages the locating slot engaging with described ridge.
10. releasable connection according to claim 9, wherein, described shape-memory polymer comprises the permanent shape of sequencing, the permanent shape of this sequencing is configured to reduce when being heated to described switch temperature the resistance that inserts or remove.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/859,003 | 2013-04-09 | ||
| US13/859,003 US8864403B2 (en) | 2010-02-10 | 2013-04-09 | Joining or fastening components containing a shape memory polymer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104100612A true CN104100612A (en) | 2014-10-15 |
Family
ID=51582045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310659409.XA Pending CN104100612A (en) | 2013-04-09 | 2013-12-09 | Joining or fastening components containing a shape memory polymer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104100612A (en) |
| DE (1) | DE102013113454A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105015804A (en) * | 2015-07-29 | 2015-11-04 | 哈尔滨工业大学 | Large-bearing compression type shape memory polymer composite material releasing mechanism |
| CN110049812A (en) * | 2016-12-07 | 2019-07-23 | 德国古斯塔夫·爱立许机械制造有限公司 | The method of hybrid blade with anti-wear component and the base part for anti-wear component to be attached to hybrid blade |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6463281A (en) * | 1987-09-02 | 1989-03-09 | Matsushita Electric Ind Co Ltd | Connector |
| JP2006342898A (en) * | 2005-06-09 | 2006-12-21 | Sharp Corp | Screw |
| CN102146946A (en) * | 2010-02-10 | 2011-08-10 | 通用汽车环球科技运作有限责任公司 | Joining or fastening components containing a shape memory polymer |
| US20120285779A1 (en) * | 2011-05-12 | 2012-11-15 | Baker Hughes Incorporated | Shape Memory Polymer Isolator for Downhole Electronics |
| US20130042461A1 (en) * | 2011-08-17 | 2013-02-21 | Composite Technology Development, Inc. | Shape memory polymer devices |
| CN102996582A (en) * | 2012-03-30 | 2013-03-27 | 合肥工业大学 | Active dismounting structure and dismounting method of active dismounting structure |
-
2013
- 2013-12-04 DE DE102013113454.8A patent/DE102013113454A1/en not_active Withdrawn
- 2013-12-09 CN CN201310659409.XA patent/CN104100612A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6463281A (en) * | 1987-09-02 | 1989-03-09 | Matsushita Electric Ind Co Ltd | Connector |
| JP2006342898A (en) * | 2005-06-09 | 2006-12-21 | Sharp Corp | Screw |
| CN102146946A (en) * | 2010-02-10 | 2011-08-10 | 通用汽车环球科技运作有限责任公司 | Joining or fastening components containing a shape memory polymer |
| US20120285779A1 (en) * | 2011-05-12 | 2012-11-15 | Baker Hughes Incorporated | Shape Memory Polymer Isolator for Downhole Electronics |
| US20130042461A1 (en) * | 2011-08-17 | 2013-02-21 | Composite Technology Development, Inc. | Shape memory polymer devices |
| CN102996582A (en) * | 2012-03-30 | 2013-03-27 | 合肥工业大学 | Active dismounting structure and dismounting method of active dismounting structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105015804A (en) * | 2015-07-29 | 2015-11-04 | 哈尔滨工业大学 | Large-bearing compression type shape memory polymer composite material releasing mechanism |
| CN110049812A (en) * | 2016-12-07 | 2019-07-23 | 德国古斯塔夫·爱立许机械制造有限公司 | The method of hybrid blade with anti-wear component and the base part for anti-wear component to be attached to hybrid blade |
| CN110049812B (en) * | 2016-12-07 | 2021-11-16 | 德国古斯塔夫·爱立许机械制造有限公司 | Hybrid blade with wear resistant element and method for attaching wear resistant element to base portion of hybrid blade |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013113454A1 (en) | 2014-10-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8864403B2 (en) | Joining or fastening components containing a shape memory polymer | |
| CN101274487B (en) | Joining polymer workpieces to other components | |
| RU2718498C2 (en) | Catheter devices with valves and methods for their assembly | |
| CN104100612A (en) | Joining or fastening components containing a shape memory polymer | |
| US4988146A (en) | Process for the production of bristle articles | |
| US7032282B2 (en) | Releasable fastener system | |
| KR200163143Y1 (en) | Interengaging fastener having reduced noise generation | |
| CN101813075B (en) | Active materials-based compliant mechanisms | |
| US8096537B2 (en) | Active material based suction cups | |
| US5984756A (en) | Toy construction system | |
| EP1054606B1 (en) | Fastener members, method and apparatus for their fabrication | |
| JP2005522635A (en) | Electrically separated surface fastener | |
| WO2002091872A1 (en) | Bi-stable fastening | |
| CN101287640A (en) | Reversibly deployable air dam | |
| KR950001606Y1 (en) | Molded surface fastener | |
| KR20100092481A (en) | Multi-angle pop-in mechanical fastener | |
| CN102333641A (en) | Flexible eyewear frame with rigid lens retainer | |
| CN102686928A (en) | Pipe section joining | |
| CN108692064A (en) | Fluid bypass valve with the Temporary Flow control device for the fluid circuit being initially switched on to be arranged | |
| CN103302432A (en) | Method of assembling workpieces utilizing shape memory polymer activation to facilitate alignment and retention | |
| US6920675B2 (en) | Process for attachment and/or disengagement of components | |
| JP7110375B2 (en) | Variable diameter heart valve sealing skirt | |
| EP0045612A1 (en) | Heat recoverable connector | |
| WO2010121004A1 (en) | Prestressed structural members and methods of making same | |
| CN110268188A (en) | Quick connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141015 |