CN101253370A - Method for mounting ceramic cooktops in appliance - Google Patents
Method for mounting ceramic cooktops in appliance Download PDFInfo
- Publication number
- CN101253370A CN101253370A CNA2006800312435A CN200680031243A CN101253370A CN 101253370 A CN101253370 A CN 101253370A CN A2006800312435 A CNA2006800312435 A CN A2006800312435A CN 200680031243 A CN200680031243 A CN 200680031243A CN 101253370 A CN101253370 A CN 101253370A
- Authority
- CN
- China
- Prior art keywords
- dam
- siloxanes
- ceramic cooktops
- bearing
- framework
- 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
- 239000000919 ceramic Substances 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 44
- -1 siloxanes Chemical class 0.000 claims description 70
- 239000000203 mixture Substances 0.000 claims description 22
- 229920001971 elastomer Polymers 0.000 claims description 15
- 239000000806 elastomer Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 229920000642 polymer Polymers 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 7
- 229920002379 silicone rubber Polymers 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000009974 thixotropic effect Effects 0.000 claims description 5
- 230000000284 resting effect Effects 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 2
- 229920001296 polysiloxane Polymers 0.000 abstract description 21
- 230000009969 flowable effect Effects 0.000 abstract description 2
- 239000000565 sealant Substances 0.000 description 18
- 239000007767 bonding agent Substances 0.000 description 10
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 238000001723 curing Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000010411 cooking Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000000945 filler Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000004831 Hot glue Substances 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 238000013006 addition curing Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 229920004482 WACKER® Polymers 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000002241 glass-ceramic Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000006459 hydrosilylation reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- NSGXIBWMJZWTPY-UHFFFAOYSA-N 1,1,1,3,3,3-hexafluoropropane Chemical compound FC(F)(F)CC(F)(F)F NSGXIBWMJZWTPY-UHFFFAOYSA-N 0.000 description 1
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 241000276489 Merlangius merlangus Species 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229920000572 Nylon 6/12 Polymers 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- 229910018540 Si C Inorganic materials 0.000 description 1
- 244000191761 Sida cordifolia Species 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 235000019241 carbon black Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 239000004643 cyanate ester Substances 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 230000026030 halogenation Effects 0.000 description 1
- 238000005658 halogenation reaction Methods 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000009787 hand lay-up Methods 0.000 description 1
- UKACHOXRXFQJFN-UHFFFAOYSA-N heptafluoropropane Chemical group FC(F)C(F)(F)C(F)(F)F UKACHOXRXFQJFN-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 239000004590 silicone sealant Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004634 thermosetting polymer Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Images
Landscapes
- Sealing Material Composition (AREA)
Abstract
A process for mounting a ceramic cooktop in a stove, comprising: a) supplying a frame (5) having an opening therein for receiving a ceramic cooktop (2) , the opening having a periphery and a support surface extending inwardly from the periphery of the opening; b) providing a dam (10) on the support surface extending continuously around the support surface and having a height such that a cooktop will have a spaced relationship between the bottom surface of the cooktop and at least a portion of support surface; c) positioning a cooktop within the opening in the frame, the edge of the cooktop being spaced apart from the side walls of the frame; d) applying a flowable, curable silicone (11) between the side walls of the frame and the edges of the cooktop and allowing the silicone to level to provide a visible seal between the frame and the cooktop.
Description
Technical field
The present invention relates in metal framework, be loaded with the manufacture method of stove, furnace roof and the stove and accessory (below be generically and collectively referred to as " stove ") of ceramics furnace kitchen range face.
Background technology
The family expenses stove often has glass ceramics (" pottery ") boiler face.Under boiler face, ceramic grate can be installed, adopt such as nickel filament constant resistance silk or quartz halogen lamp heating ceramic grate.Cooktop surface often has color and/or has texture, and it has been generally acknowledged that this is that the aesthetics of traditional electric furnace that heater coil is exposed is improved.Furnace roof (cooktop) is commonly referred to " pottery ", but sometimes is also referred to as " glass ceramics ".
In self-supporting stove, cooking stove and embedded furnace roof unit, " stove " 1 (referring to Fig. 1) has end face 5, this end face be the steel punching press and have the opening that ceramic cooktops 2 wherein is set, the feature of this opening also is to have edge or sidewall 8 (referring to Fig. 3) and ceramic cooktops bearing-surface 5a.For aesthetic reasons, often can be desirably under the situation of not using outer clips or ring ceramic cooktops is placed depressed part.As shown in Figure 2, be generally the sealed compound 6 filling metal frameworks of siloxanes and the gap between the ceramic cooktops.
Traditionally, it is not only tiring but also dirty and messy to be used to install the method for furnace roof.At first, (referring to Fig. 3 and Fig. 4) is from the manual double-sided adhesive isolating pad 7 that applies of the release liners of a volume supply adhesive pad 7.Then ceramic cooktops is placed the center of opening and be pressed on the isolating pad.Isolating pad keeps furnace roof not contact with metal framework 5, and between ceramic cooktops 2 and bearing-surface 5a, provide can filling sealing agent 6 the space.What expect is not only to fill the edge of ceramic cooktops and the gap between its receiving opening with sealant, but also force sealant to enter the furnace roof below along bearing-surface 5a.When sealant cures, its adhesion properties is mainly used in furnace roof is remained in the appropriate location.
Applying sealant is a manual operations, sealant must be not easy to flow and preferably have thixotropy (thixotropic), this is because if not, and shown in Reference numeral 6c among Fig. 3, sealant will flow through adhesive pad 7 and fall into the space of furnace roof below.Applying too much sealant may also can cause sealant to ooze out uncontrollably.Because the stiff nature of sealant, must force sealant to enter space between furnace roof and the framework by operation, and must applying sealant after, use hand tools at once, so that obtain level and smooth, surperficial uniformly with certain difficulty.For the surface attractive in appearance that obtains to need, often need carry out several " coming back operations ", last cleaning operation often comprises and adopts scraper to remove the sealant of curing.Through regular meeting by taking off ceramic cooktops, cleaning ceramic cooktops and siloxanes framework and reinstalling the part of the stove of reforming.Because siloxanes is normally non-water-soluble and be thickness, whole operation may be very dirty.
Expectation can seal in metal framework and the bonded ceramics furnace roof in Rapid and uniform mode, avoids at least some simultaneously, preferably avoids most of or whole hand assembled and refine step.Hand tools or the cleaning operation of expectation by seldom in addition perhaps do not form the cementability sealant of width unanimity, and presents encapsulant surface attractive in appearance below furnace roof by hand tools or cleaning operation.
Summary of the invention
Ceramic cooktops is installed in the metal framework with bearing-surface in the following way, that is: the inner peripheral around bearing-surface is provided with dam, ceramic cooktops is placed on the dam, and with the low viscosity of measured quantity, between levelling, curable silicone (curable silicone) injection furnace roof and metal framework, prevent that curable silicone from leaving the inner peripheral of bearing-surface by dam, and curable silicone extends upward to fill the gap between ceramic cooktop edge and the metal framework equably.
Therefore theme of the present invention is a kind of method that ceramic cooktops is installed in stove, comprising:
A) provide framework with opening, this opening has the size of admitting ceramic cooktops and has periphery and bearing-surface, bearing-surface extends internally from the periphery of opening, the periphery of bearing-surface and opening is connected by the sidewall that between extends, and ceramic cooktops has bottom surface, end face and is connected end face and the edge of bottom surface;
B) provide the dam of extending continuously around bearing-surface on bearing-surface, the height of this dam is configured to, and when ceramic cooktops being placed the opening of framework and resting on the dam, the bottom surface of ceramic cooktops and at least a portion of bearing-surface are spaced apart;
C) ceramic cooktops is placed the opening of framework, the bottom surface of ceramic cooktops rests on the dam, and the edge of ceramic cooktops and the sidewall spacers of framework are opened;
D) between the edge of the sidewall of framework and ceramic cooktops, apply can flow, curable siloxanes, and make siloxanes can leveling between framework and ceramic cooktops, to obtain visible seal.
Description of drawings
Fig. 1 illustrates the self-supporting cooking stove with ceramic cooktops.
Fig. 2 illustrates the enlarged drawing of stove top, and the sealant between furnace roof and the framework is shown.
Fig. 3 and 4 illustrates the method for the installation ceramic cooktops of prior art.
Fig. 5,6 and 7 illustrates the embodiment of the method for installation ceramic cooktops of the present invention.
Fig. 8 illustrates another embodiment according to bearing-surface of the present invention and dam.
The specific embodiment
The metal framework of cooking stove itself can adopt any conventional method manufacturing.As a rule, shown in Fig. 3 to 8, cooking stove has the opening of admittance ceramic cooktops and shelf or " bearing-surface " 5a of depression, the degree of depth of shelf makes the thickness can hold ceramic cooktops and dam (back will be described), presents the surface that flushes substantially with the end face of the end face 5 of metal framework and ceramic cooktops 2 simultaneously.In some designs, may expect that these surfaces do not flush.
Key of the present invention is to use the low viscosity silicone sealant that has from flat characteristic, particularly uses such sealant with known amount.In the method for prior art, can not use this siloxanes, this is because the space that this siloxanes can flow through adhesive pad and flow into the furnace roof below.
In addition, the use amount of sealant changes along with the degree of depth of infiltrating space between furnace roof 2 and the bearing-surface 5a, also changes along with shape, size and the position of adhesive pad.
By forming " dam ", this dam is preferably located near the inward flange or " periphery " of bearing-surface, and perhaps as selection, this dam is spaced apart with the periphery of ceramic cooktops and preferably parallel, can prevent that like this liquid silicon from flowing into cooking stove inside.Such dam illustrates with Reference numeral 10 in Fig. 5,6 and 7.In addition,, therefore can or calculate the requirement of siloxanes, thereby make and to use the robot dispensing tool with suitable precision measure because dam has consistent height and the position is set.By inject correct number from the levelling siloxanes, can after injection, not influence furnace roof fully, siloxanes will form sealing level and smooth, even, attractive in appearance at framework between ceramic cooktops.In most of the cases, do not need hand tools or cleaning operation.
Can adopt three kinds of diverse ways that dam is provided, every kind of method all is embodiments of the invention.In first method and also be among the most preferred embodiment, dam is provided as quick-setting elastomer and/or bonding agent protuberance (bead), and preferably apply, so that realize applying evenly by the robot device.In this embodiment, quick-setting bonding agent can be the hot-melt adhesive of any chemical type, and preferably heat-resisting and oxidation resistant bonding agent is such as the siloxanes hot-melt adhesive.Yet most preferably, dam is made of the high viscosity that is solidified into rubbery state fast and/or thixotropic curable adhesive.No matter be which kind of situation, so the protuberance that forms should preferably have the elastomeric characteristic of bala gutta.
Protuberance is viscosity preferably, so that furnace roof can not move after the location, even stove is subjected to pushing away in the solidification process of levelling siloxanes and hits or be not intended to that () inclination also is like this or intentionally in manufacture process or what apply after a while.Yet protuberance can not be a viscosity, and has in the elastomer industrial characteristic that is called " frog foot (froggy hand) ", and this characteristic makes elastomer have the trend that is adjacent to smooth surface under self inviscid situation.Yet if avoided tilting and push away to hit stove after the furnace roof of location, protuberance only need provide the stationkeeping ability of appropriateness and prevent that liquid silicon from flowing through the ability of protuberance (" dam " function of protuberance).In this case, can use non-sticky and elastomer or polymer that only can appropriateness distortion.
Quick-setting bonding agent is preferred silicone adhesive agent, and this is because organopolysiloxane (silicones) has very favorable characteristic.Specifically, siloxanes can tolerate higher relatively temperature, therefore withstands the expected temperature of cooktop periphery easily, even also like this under all combustion furnaces uses of use situation of longer time.Secondly, siloxanes has oxidation stability, has the long-life and continues to keep elasticity even therefore also can anticipate after using for a long time.When the siloxanes protuberance was used for dam, the siloxanes protuberance can be any quick-setting type if not heat molten type.Suitable siloxanes is for example peroxide cure, condensation cured and addition curing.The siloxanes of addition curing (addition curing) is preferred.Because expect that very curing rate is very high, therefore two component addition curing systems are preferred.This system can commercially obtain, and also is easy to preparation.Employed organopolysiloxane can also comprise any organic group except comprising reactive group, for example still be not limited to methyl, ethyl, propyl group, phenyl, chlorphenyl etc.Can also have halogenation, fluorinated alkyl group specifically is such as HFC-236fa and heptafluoro-propane group.For economic reasons, particularly methyl and phenyl group are preferred, most preferably methyl group.Therefore, preferred elastomer is a dimethyl silicone polymer on substantially.
Reactive group in the silicone elastomer of the addition-curable by hydrosilylation cure be with the hydrogen of Si bonding and with the ethene or the acetylene unsaturated group of Si-C bonding.Can use the end of the chain as α-, ω-siloxanes and the siloxanes that contains the reactive group that dangles.Hardness after the curing is influenced by crosslink density usually, and higher crosslink density provides harder elastomer.Under the situation that does not have filler and thixotrope, uncured viscosity is mainly by the chain length decision, and therefore the molecular weight by each organopolysiloxane determines.Add filler, especially add the small filler of granularity and can increase viscosity, and can to make composition be thixotropic that viscosity and/or fluidity regulator are like this equally.
Other example that can be used for solidifying fast the material of dam comprises the elastomer based on epoxy resin, and especially those are to have elastomer and the polyurethane that hear resistance contains fluoride.Can also use other curable polymer system, for example cyanate ester resin, bimaleimide resin etc., but cost is higher usually.Can also use hot-melt adhesive based on polyester, polyamide and composition thereof etc.But preferably, the polymer protuberance or the dam of projection are made of silicone elastomer.When using hot-melt adhesive, preferably, bonding agent is the crosslinked type that becomes thermosetting polymer after applying, perhaps being heat-staple at elevated temperatures, for example is fatty polyamide, such as polyamide 6, polyamide 6,6, polyamide 6,12 etc.
In order to make the use amount minimum of siloxanes or other dam material, and therefore realize the highest economy, the protuberance of expectation paver has roughly semicircular shape of cross section after applying, and semicircular planar side abuts the surface of framework.Yet, in practice, can obtain slightly vertically fasciation or oval shape, and in principle, can use the cross section of non-constant width (very flat), as long as the height of protuberance can keep ceramic cooktops to be in design height satisfactorily.Suitable silicone elastomer prescription is ELASTOSIL
RT 722, and this is a kind of two component RTV-2 elastomers that can obtain from the WackerChemie AG of the Wacker Chemical Corporation of Michigan, USA Adrian and Munich, Germany.This elastic composition is approximately 10 minutes the hardening time under 150 ℃.Be important on following meaning hardening time only, that is: hardening time, long composition can make the production cycle slack-off, perhaps allows to occur producing the flow regime of wide protuberance in some composition.It also is acceptable fully providing the initial solidification of the protuberance of dimensionally stable before solidifying more completely.Preferably between 5 to 20 minutes, applied speed and limited short hardening time hardening time, that is to say, elastomer should not be in still when being arranged in " spray gun " and solidifies.
Can the quick-setting polymer protuberance of hand lay-up, particularly like this when using air gun to extrude the material of constant basis.Yet, should avoid using manual skill, the highly preferred conventional machines people device that is to use.This robot generally includes the articulated boom of guiding nozzle or " spray gun ", can flow by this nozzle or " spray gun " by quick-setting polymer.The manual steps in eliminating manufacture process, adopt robot to have the much higher obvious advantage of uniformity that applies.Should apply protuberance to produce at least one continuous basically dam, this dam prevents that the flowed siloxanes that applies after a while from flowing through dam.Can tolerate to occur small " space " in the continuous dam, as long as these spaces do not allow siloxanes to pass through dam and leak in large quantities.Continuously the terminal part of protuberance can with the initial end adjacency of protuberance, its side can be overlapping, perhaps can have any other mode of termination, thereby make it possible to avoid low viscosity silicone to leak into furnace roof inside in large quantities by dam.
In the second lower embodiment of preference degree, manually or by machine (that is robot) apply the continuous dam that has constituted for solid-state elastomer by.In such an embodiment, apply by hand, perhaps preferably apply the continuous volume of two-sided tape with suitable thickness by robot.Apply for manual, for instance, can use in the bight, perhaps can use prolongation band in the bight bent around in abutting connection with so that the continuous linear belt of continuous dam to be provided.In this application scenario, in order to help in the bight bent around, preferably, the width of band is not excessive.Can automatically carry out the operation that applies of same way as, this is preferred with respect to manual method.Particularly for manual method, the bearing-surface that ceramic cooktops will be spaced away can be formed with groove, step or other positioner and correctly place and locate dam to assist.With can quick-setting dam the same, any " space " in the dam all should be enough little continuously, thereby avoid low viscosity silicone to reveal by dam.
In the 3rd embodiment, bearing-surface itself is provided with the dam of the projection shown in Reference numeral 5a among Fig. 8, and this dam for example forms by stamp out dam in ram frame.In this embodiment, dam self does not have spacing ability.For instance, the ceramic cooktops after the location may be slided under the situation that stove tilts, and perhaps may be pushed easily to bump against in the unsuitable position.Yet, can adopt bonding agent or stickum spraying dam, so that spacing ability to be provided.In this case,, bonding agent or stickum can be applied by hand, and the bonding agent spraying can be implemented very apace because dam is located.
Therefore, term " dam " broadly represents in the zone of the projection between the sidewall of the inner peripheral of bearing-surface and frame openings on the bearing-surface level, and dam can be eliminated or eliminate basically the siloxanes that can flow and flow through the mobile possibility of dam after ceramic cooktops has been arranged in opening and has rested on the dam." basically eliminate " is illustrated in the inside that the siloxanes of avoiding on the degree of the commercial validity of not damaging this method flowing flows into furnace roof.Can allow small leakage, yet, leakage rate should be enough little, thereby without any need for a large amount of cleaning operations, on the whole periphery between the bottom surface of dam and ceramic cooktops, perhaps the leakage rate of leaking by the slight void in the dam preferably is no more than 10ml, and most preferably is no more than 1ml.Most preferably, only separative stream of liquid droplets is crossed dam, does not perhaps have flowable siloxanes to flow through dam fully." dam " also represents continuous structure, i.e. Huan Xing structure, thus prevent above-mentioned leakage.Be enough to the discontinuous portion that the feasible siloxanes that can flow in a large number can flow through or pass through if discontinuous structure has its size, then this discontinuous structure is not the dam in the scope of the invention.Yet should be noted that dam also needs not be single monoblock type enclosed construction.For instance, as the helical member of lower convexity within the scope of the invention, passage long enough between inlet that the siloxanes that wherein can flow can flow through and the outlet, the viscosity of the feasible siloxanes that can flow and surface tension or its curing rate make siloxanes not flow out helical member and enter stove inside, the a plurality of concentric rings that have opening in adjacent ring are exactly that so it provides maze path for the siloxanes that can flow.Main consider to be that the function of dam, the siloxanes that prevents to flow are a large amount of leak and keep suitable spacing between bearing-surface and ceramic cooktops, and be not the concrete structure of dam.
No matter use any dam building method (or combination of method), next, furnace roof is placed on the bearing-surface, and makes the edge 8 of furnace roof and framework keep suitable spatial relationship.This operation is also preferably carried out by robot.
At last, between the edge 8 of the edge 9 of ceramic cooktops and framework, apply low viscous curable silicone 11.Though manual applying is feasible, and compares not more time-consuming with applying traditional high-viscosity silicone, it is preferred that robot applies mode.Though apply by hand and can save some times, still need hand tools to carry out refine usually, even this is to make the siloxanes self-balancing to realize the required precision of sealing even, attractive in appearance between the edge 8 and 9 because the most skilled workman can not reach.On the other hand, the quantitative output of bonding agent, the space rate of robot etc. are easy to regulate in small limit, thus the feasible hand tools that do not need.Therefore to apply be preferred in robot.Can calculate the sendout of siloxanes according to the apparent height of siloxanes between the volume that surrounds between the dam and edge 8 and 9.If " dam " is not to extend along cooktop periphery in the bight, then rate of administration can be regulated so that be the more siloxanes of bight supply.
Silicone composition is preferably the addition-curable composition with relatively low viscosity and appropriate gel time.Gel time and viscosity have reciprocal relation basically, and this is from levelling because of the expectation siloxanes, and promptly siloxanes flows filling any space, and forms level and smooth and smooth sealing between ceramic cooktop edge and furnace top frame.The viscosity of composition is high more, needs gel flowing time before long more.For substantially the same reason, the grain amount in the siloxanes is the grain amount in calking or the traditional sealant usually.Composition has color by containing such as pigments such as powdered whiting, titanium dioxide, black transparent iron oxide or carbon blacks usually, i.e. white, grey or black.The same with most pigments, requirement is less relatively usually.It is colourless translucent or transparent may expecting to make composition.For this composition, perhaps do not use the filler of any kind, perhaps use such as fillers such as very little silica of particle diameter or titanium dioxide, silica wherein, promptly aerosil is preferred.Hardening time is preferably between 5 to 30 minutes, more preferably between 5 to 20 minutes.Hardening time also can be longer, and as previously mentioned, can only just occur solidifying fully after using stove, but this is not the most satisfied.
The silicone composition of addition-curable, the silicone composition of polymer dam as previously described, contain with the ethene of Si bonding or acetylene unsaturated group and with the hydrogen and the hydrosilylation catalysts of Si bonding.The amount of catalyst is less than the amount of quick-setting protuberance siloxanes usually, and this is because slower composition is solidified in expectation.Those skilled in the art can easily regulate quantity to change gel time and solidification rate, perhaps even the condition of regulating the climate, i.e. the change speed of the temperature in the manufacturing shop.
Certainly adopt the curable liquid siloxanes of other type, for example adopt peroxide to promote the siloxanes that solidifies, perhaps condensation cured system, for example use silanol functional organopolysiloxane and alkoxy silane or oxyalkylsiloxane siloxanes, perhaps use to have and the silanol functional organopolysiloxane of the hydrogen of Si bonding and the siloxanes of silane or siloxanes (comprising polysiloxanes) as crosslinking agent.This curable RTV-2 and LTV-2 silicone elastomer are well-known, and can obtain from multiple source of supply.Can use the RTV-1 composition in principle, but it is not to be preferred, if can be for example in heat tunnel etc. the heating stove, then can use and contain the catalyst that only under the temperature of appropriateness rising, activates or the RTV-1 composition of initator.Yet the elastomer that needs the rising temperature is not the most satisfied.
Curable viscosity when levelling liquid polyorganosiloxane composition is applying preferably at 10mPas to the 100000mPas, more preferably at 5000mPas between the 15000mPas, most preferably at 8000mPas between the 10000mPas.Have been found that viscosity (25 ℃) is very favorable for the composition of 9000mPas.Because suitable viscosity depends on several factors, comprises between ceramic cooktop edge and the metal framework and the spacing distance between ceramic cooktops bottom surface and the bearing-surface, for some application scenario, the siloxanes of higher or lower viscosity may also be available.Viscosity should be after applying siloxanes increases with the speed of appropriateness, being that composition has time enough and flows and leveling.Curing should reach complete state of cure after for example still being not limited to 10-15 minute, thereby can operate stove or furnace roof and can not damage sealant, but solidification process can prolong even several days or a few week fully, perhaps can carry out when the temperature of utensil raises in the utensil use.Can solidify being generally under 15 ℃ to 30 ℃ the environment temperature from the levelling siloxanes, perhaps can under for example up to 150 ℃ high temperature, solidify, but this is not restrictive.
The low viscosity silicone that preferably can flow is the two component addition-curable siloxanes of viscosity in 6000mPas arrives the 9000mPas scope, most preferably, can be from the ELASTOSIL of Wacker Chemical Corporation and Wacker Chemie AG acquisition
RT 749.These siloxanes have 10 minutes hardening time under 150 ℃.
Therefore, in according to the preferred method of the present invention, as shown in Figure 6, the furnace roof that will have framework 5 places in the working range of robot, framework 5 has the size of holding ceramic cooktops 2 and has bearing-surface 5a, and robot distributes very viscosity and/or thixotropic quick curing RTV-2 siloxanes by nozzle or " spray gun " 12.Robot forms the roughly semicircular protuberance or " dam " 10 that is made of adhesive silicone elastomer of projection with the pre-position on bearing-surface by nozzle supply RTV-2 siloxanes 11, for example parallel with the edge of bearing-surface or parallel with the marginal position of the ceramic cooktops that applies after a while protuberance, the location of framework is preferably such that with the placement of dam protuberance always is in identical position with respect to the framework of each stove of same type.Dam is continuous basically, thereby prevents that the flowed siloxanes that applies after a while from revealing by dam.
Yet second robot places ceramic cooktops in the opening of framework, the bottom surface of ceramic cooktops is rested on the siloxanes protuberance (dam) of projection, thereby limit " sealing " district, this " sealing " district stretches out to frame facet or edge from the outer peripheral edges of dam, and extend upwardly to the level of the end face of furnace roof and framework, if the end face of furnace roof and framework is not in equal height, then extend upwardly to slightly the level of low end face among both.
At last, another robot (the uniform machinery people who perhaps has other siloxanes supply and/or nozzle) centers on the periphery of furnace roof to distribute the siloxanes 11 that can flow with the essentially identical volume of the seal area that limits between framework and furnace roof.The siloxanes that can flow can be filled the seal area that limited and leveling automatically, thus when its sclerosis (curings) between the edge of the edge of framework and furnace roof the seal 13 of the non-tool processes of formation.
In above preferred embodiment, of course not must have only one or two robot to carry out the function of all descriptions.In addition, furnace roof can be sent to robot, perhaps robot be sent to furnace roof.Can expect, most preferably and most economical manufacture method be on conveyer, to transmit stove or furnace roof through three robots, stop the sufficiently long time to carry out corresponding automatic function at each robot place.Obviously, a lot of versions all are feasible.
In the lower embodiment of preference degree, carry out according to the preferred embodiment basically, but have some variation.For example, in one embodiment, the siloxanes that can flow is the same with applying, and automatically applies dam.Yet furnace roof adopts manual location.In another embodiment, shown in the Reference numeral 5b among Fig. 8, do not apply polymer dam, and be to use the bearing-surface with bossing, this bossing plays the effect of dam.
Though for simplicity, preferably adopt and apply polymer dam in the same way for the furnace roof of same model, but certainly change position, width, height of the dam that robot applies etc., and data are remained in hardware or the software so that can calculate sealed volume respectively for each unit.Yet, though this embodiment obviously within the scope of the invention, is not most preferred.
Represent to exist dam such as terms such as " dam are set ", and no matter its protruding metal that is conduct is made when employing metal sheet ram frame partly provides, or conduct is with continuously or the continuous protuberance of solid-state bonding agent or quick curing adhesive applies.A framework by ceramic cooktops extends internally by part in the middle of the dam and the extension that is generally level above term " bearing-surface " expression.Bearing-surface is an one with framework preferably, but also can make separately and be installed on the framework.Since method of the present invention intrinsic higher positioning accuracy, can make the width of bearing-surface narrower than the width of the existing bearing support of top placement adhesive pad.As previously mentioned, " stove " comprises stove, cooking stove, embedded furnace roof etc.When not being subjected to viscosity limitation, " can flow " expression composition automatically flows under the effect of gravity.
Though illustrated and described embodiments of the invention, do not represented that these embodiment illustrate and described the possible form of institute of the present invention.On the contrary, word as used in this specification is a descriptive words and non-limiting word is appreciated that under the situation that does not break away from marrow of the present invention and scope and can carries out various variations.
Claims (20)
1, a kind of method that ceramic cooktops is installed in stove comprises:
A) provide framework with opening, this opening has the size of admitting ceramic cooktops and has periphery and bearing-surface, bearing-surface extends internally from the periphery of opening, the periphery of bearing-surface and opening is connected by the sidewall that between extends, and ceramic cooktops has bottom surface, end face and is connected end face and the edge of bottom surface;
B) provide the dam of extending continuously around bearing-surface on bearing-surface, the height of this dam is configured to, and when ceramic cooktops being placed the opening of framework and resting on the dam, the bottom surface of ceramic cooktops and at least a portion of bearing-surface are spaced apart;
C) ceramic cooktops is placed the opening of framework, the bottom surface of ceramic cooktops rests on the dam, and the edge of ceramic cooktops and the sidewall spacers of framework are opened;
D) between the edge of the sidewall of framework and ceramic cooktops, apply can flow, curable siloxanes, and make the siloxanes leveling between framework and ceramic cooktops, to obtain visible seal.
2, method according to claim 1 is characterized in that, described dam comprises the protuberance of the quick cure polymer that applies.
3, method according to claim 2 is characterized in that, described quick cure polymer is the RTV-2 silicone elastomer.
4, method according to claim 3 is characterized in that, described RTV-2 silicone elastomer is the elastomer of addition-curable.
According to each described method in the claim 2 to 4, it is characterized in that 5, described quick cure polymer is viscosity and/or thixotropic composition, said composition forms the dam with semicircle or fasciation semi-circular cross-section.
6, according to each described method in the claim 1 to 5, it is characterized in that, described dam is applied on the described bearing-surface by robot.
7, according to each described method in the claim 1 to 6, it is characterized in that, described ceramic cooktops is placed described opening by robot.
8, according to each described method in the claim 1 to 7, it is characterized in that, apply by robot describedly flow, curable siloxanes.
9, according to each described method in the claim 1 to 8, it is characterized in that, by the execution in step b of robot), c) and d) at least two steps.
10, according to each described method in the claim 1 to 9, it is characterized in that, apply described dam in the following manner: limit and extend to the seal area of the end face of visible seal, and apply volume and roughly the same the flowed siloxanes of seal area volume from the inner peripheral of dam.
11, method according to claim 10 is characterized in that, applies the described siloxanes that flows by robot.
12, according to each described method in the claim 1 to 11, it is characterized in that, after step d), do not need hand tools or cleaning operation.
13, according to each described method in the claim 1 to 12, it is characterized in that, adopt the solid elastomer that is applied on the described bearing-surface to form described dam.
14, method according to claim 13 is characterized in that, applies described solid elastomer by robot with the form of continuous band.
According to each described method in the claim 1 to 14, it is characterized in that 15, described dam is as the bossing of bearing-surface and provide.
16, method according to claim 15 is characterized in that, provides described bossing by the metal stamping operation.
17, method according to claim 15 is characterized in that, before step c), adopts stickum to apply described bossing.
18, according to each described method in the claim 1 to 17, it is characterized in that, describedly flow, curable siloxanes is the siloxanes of addition-curable.
19, according to each described method in the claim 1 to 18, it is characterized in that, describedly flow, the curable initial viscosity of siloxanes under 25 ℃ be that 6000mPas is to 9000mPas.
20, a kind of stove of making by the described method of claim 1, it has the ceramic cooktops that is arranged in metal framework, and has the siloxanes seal between metal framework and ceramic cooktops.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US71193105P | 2005-08-26 | 2005-08-26 | |
| US60/711,931 | 2005-08-26 | ||
| US11/240,127 | 2005-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101253370A true CN101253370A (en) | 2008-08-27 |
Family
ID=39956037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800312435A Pending CN101253370A (en) | 2005-08-26 | 2006-08-25 | Method for mounting ceramic cooktops in appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101253370A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2660524A1 (en) * | 2012-05-04 | 2013-11-06 | BSH Bosch und Siemens Hausgeräte GmbH | Method for producing a cooking hob |
| EP3106758A1 (en) * | 2015-06-16 | 2016-12-21 | BSH Hausgeräte GmbH | Hotplate device |
-
2006
- 2006-08-25 CN CNA2006800312435A patent/CN101253370A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2660524A1 (en) * | 2012-05-04 | 2013-11-06 | BSH Bosch und Siemens Hausgeräte GmbH | Method for producing a cooking hob |
| EP3106758A1 (en) * | 2015-06-16 | 2016-12-21 | BSH Hausgeräte GmbH | Hotplate device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20070044788A1 (en) | Method for mounting ceramic cooktops in appliance | |
| JP3920746B2 (en) | Thermally conductive composite sheet and method for producing the same | |
| CN101253370A (en) | Method for mounting ceramic cooktops in appliance | |
| HK1116208A1 (en) | Silicone composition for encapsulating luminescent element and luminescent device | |
| US20170342677A1 (en) | Waterproof sheet and method for waterproofing construction | |
| WO2006024735A3 (en) | Static seal | |
| CN102555331A (en) | Thermal-conductive silicon sheet and manufacturing method thereof | |
| JP4246702B2 (en) | Heat exchange plate, plate heat exchanger, and method of manufacturing heat exchange plate | |
| DE59913952D1 (en) | Room temperature curing silicone composition and its use | |
| KR100574289B1 (en) | Heat-dissipating member, manufacturing method and installation method | |
| JP2018501438A (en) | Piston for cartridge, cartridge, and exhaust method of cartridge | |
| DE69514513T2 (en) | AT AMBIENT TEMPERATURE CURING SILICONE COMPOSITIONS WITH KETOXIMINOSILANES SUBSTITUTED BY HYDROCARBON | |
| CA2090588A1 (en) | Sealing method of container-shaped structural body | |
| CN101164369A (en) | Compositions and processes for assembling appliances | |
| KR20130027709A (en) | Method for manufacturing led reflector | |
| JP2019014113A (en) | Method for producing low density silicone rubber | |
| JP7030597B2 (en) | How to attach the encapsulant | |
| KR100658945B1 (en) | Sealing method of rocker cover | |
| KR20190040677A (en) | Structure and Method for supporting pipe | |
| JP2013194113A (en) | Fluorosilicone rubber composition and molded article thereof | |
| CN207165538U (en) | Substrate loading device | |
| JP2012046878A (en) | Panel joint structure | |
| KR100631077B1 (en) | Heat resistant sealing plastic for injection molding | |
| CN108412865A (en) | Dispensing method, in-out box and electronic device | |
| JP7341638B2 (en) | Molding jig and its manufacturing method |
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 |
Open date: 20080827 |