CN104494276B - A kind of honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat - Google Patents
A kind of honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat Download PDFInfo
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- CN104494276B CN104494276B CN201410791084.5A CN201410791084A CN104494276B CN 104494276 B CN104494276 B CN 104494276B CN 201410791084 A CN201410791084 A CN 201410791084A CN 104494276 B CN104494276 B CN 104494276B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
Abstract
The present invention relates to a kind of honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat, by design specialized frock, honeycomb core is carried out end face tensioning, adopt the bulging hot air apparatus of linear type heater and linear type air outlet, by to the smooth instantaneous heating of glued membrane upper surface being covered in honeycomb core end face, it is made to be subject to thermal softening and internal recessed to honeycomb core lattice under gravity, axially glued membrane is reversely applied along honeycomb core checkerwork cell high-pressure hot air simultaneously, make glued membrane tympanites, break, shrink and be uniformly gathered in honeycomb core lattice seamed edge end face, realize the adhesive direct conversion from glued membrane state to honeycomb grid state, the present invention is by honeycomb core/glued membrane level of synchronization heating/air blast scanning, make full use of the uniform advantage of structural film adhesive surface density, realize large area honeycomb core end face disposable uniformly, gridding applying glue, meet large area honeycomb core gridding applying glue the change of adhesive chemical state is little, the uniform requirement of physical distribution state.
Description
Technical field
The invention belongs to honeycomb sandwich composite shaping structures technical field, relate to a kind of honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat, it is applied to spacecraft honeycomb sandwich construction molding applying glue, mainly the honeycomb core applying glue of solar wing substrate honeycomb sandwich construction.
Background technology
Honeycomb sandwich construction, " sandwich " form structure is formed with honeycomb core by glueing joint by two eyelid coverings, there is the performances such as the specific strength of excellence, specific stiffness and resisting fatigue, be widely used in the primary and secondary load-carrying construction such as spacecraft Bearing cylinder, solar wing substrate, section structure plate.
Honeycomb sandwich construction molding glue-applying technique method, is commonly divided into two classes: eyelid covering applying glue method and honeycomb core applying glue method, and the former is suitable for continuous eyelid covering such as aluminum skin honeycomb sandwich structure, and the latter is then applicable to discontinuous eyelid covering such as grid panel honeycomb sandwich construction.Honeycomb core applying glue method is that adhesive is distributed in honeycomb core six seamed edge, makes adhesive act on the splicing interface of sandwich completely, it is possible to be effectively improved structure efficiency, meets the performance requirements such as grid panel is ventilative, heat radiation, conducting simultaneously.
Honeycomb core glue applying method conventional at present is manual gluing method, is dissolved into certain density glue by structural film adhesive, manually with rubber roll brushing to honeycomb core six seamed edge.The method has the disadvantage in that (1) adhesive is poor at honeycomb core wall end face distributing homogeneity, causes that sandwich bonding property fluctuates；(2) glued membrane dissolves and introduces organic solvent, causes fugitive constituent remaining, and sandwich bonding property, permeability is unfavorable；(3) in order to control resin added and dry out solvent, technical process need to carry out brushing-low-temperature bake repeatedly, and the impact of adhesive chemical characteristic is big, affects sandwich bonding property；(4) brushwork gelatin drops down from honeycomb core wall end face, has the risk of blocking honeycomb core air-vent；(5) indissoluble/insoluble class adhesive it is not suitable for.
Summary of the invention
It is an object of the invention to overcome the above-mentioned deficiency of prior art, a kind of honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat is provided, the method passes through design specialized frock, adopt linear type heater and drum hot air apparatus, by to the smooth instantaneous heating of glued membrane upper surface being covered in honeycomb core end face, it is made to be subject to thermal softening and internal recessed to honeycomb core lattice under gravity, axially glued membrane is reversely applied along honeycomb core checkerwork cell high-pressure hot air simultaneously, make glued membrane tympanites, break, shrink and be uniformly gathered in honeycomb core lattice seamed edge end face, realize the adhesive direct conversion from glued membrane state to honeycomb grid state, realize large area honeycomb core end face disposable uniformly, gridding applying glue.
The above-mentioned purpose of the present invention is achieved mainly by following technical scheme:
A kind of honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat, comprises the steps:
Step (one), adopt special tooling that the honeycomb core treating applying glue is carried out clamping, specific as follows: described special tooling includes frock framework, multiple U-shaped fixtures and multiple fixing screw, the honeycomb core treating applying glue is placed in frock framework, by multiple U-shaped fixture clampings on the frame of frock framework, two sidewalls making U-shaped fixture are vertical with the frame of the frock framework of respective clamping, and make the two ends of U-shaped fixture clamp the lower edges of the honeycomb core treating applying glue respectively, and be fixed by fixing screw, the honeycomb core end face tensioning of applying glue will be treated, make the end face treating the honeycomb core of applying glue all parallel with the upper and lower end face of frock framework；
Step (two), by the structural film adhesive paving upper surface at the honeycomb core treating applying glue；
Step (three), special tooling step (two) obtained and the honeycomb core treating applying glue are placed between heater and drum hot air apparatus, and keep at a distance, wherein heater is positioned at the top of the honeycomb core treating applying glue, and drum hot air apparatus is positioned at the bottom of the honeycomb core treating applying glue；Described heater is linear type heater, the air outlet of described air-blast device linearly type；
Step (four), maintenance special tooling are fixed with the honeycomb core position treating applying glue, with constant rate of speed mobile heating device and drum hot air apparatus, the honeycomb core treating applying glue carries out flat scanning, the air outlet position making synchronization air-blast device is corresponding with the position of linear type heater, namely air-out position is corresponding with heating location, it is achieved the disposable gridding applying glue of honeycomb core end face；
Step (five), the honeycomb core turn-over of applying glue will be treated, repeat step (two)～(four), it is achieved treat the gridding applying glue of the honeycomb core lower surface of applying glue.
In the above-mentioned honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat, in step (), frock framework is rectangle, square, circle or triangle, the quantity of U-shaped fixture is determined according to the overall dimensions of the honeycomb core treating applying glue, lays a U-shaped fixture at interval of 150mm～200mm.
In the above-mentioned honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat, the open height of U-shaped fixture is be more than or equal to the thickness of honeycomb core, and it is 2～3 honeycomb core lattice that honeycomb core stretches into the distance of U-shaped fixture.
In the above-mentioned honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat, the external diameter of fixing screw is not more than honeycomb core core lattice inscribed circle diameter, and described frock framework material is aluminium section bar.
In the above-mentioned honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat, in step (two), structural film adhesive is flexible organic polymer glued membrane, is specially epoxy jelly membrane or cyanate glued membrane, and thickness is 0.01mm～0.25mm.
In the above-mentioned honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat, in step (three), special tooling is 50mm～150mm with the distance that distance is 200mm～300mm and drum hot air apparatus of linear type heater.
In the above-mentioned honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat, step (three) cathetus type heater is the heater of several heaters formation of linear array, and described heater is heat lamp.
In the above-mentioned honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat, linear type heater is relevant to the specification of honeycomb core with the synchronous scanning speed of drum hot air apparatus, for:Unit mm/s；Wherein: | | representing and round, L is the length of side of honeycomb core core lattice.
The present invention compared with prior art has the advantages that
(1), honeycomb core is carried out end face tensioning by design specialized frock by the present invention, adopt the bulging hot air apparatus of linear type heater and linear type air outlet, by to the smooth instantaneous heating of glued membrane upper surface being covered in honeycomb core end face, it is made to be subject to thermal softening and internal recessed to honeycomb core lattice under gravity, axially glued membrane is reversely applied along honeycomb core checkerwork cell high-pressure hot air simultaneously, make glued membrane tympanites, break, shrink and be uniformly gathered in honeycomb core lattice seamed edge end face, realize the adhesive direct conversion from glued membrane state to honeycomb grid state, the present invention is by honeycomb core/glued membrane level of synchronization heating/air blast scanning, make full use of the uniform advantage of structural film adhesive surface density, realize large area honeycomb core end face disposable uniformly, gridding applying glue, meet large area honeycomb core gridding applying glue the change of adhesive chemical state is little, the uniform requirement of physical distribution state；
(2), the present invention according to honeycomb core lattice size, obtained the relation of the linear type heater/air-blast device synchronous scanning speed to honeycomb core/glued membrane and the length of side L of honeycomb core core lattice by empirical equation and engineer testing, for:Unit mm/s；Realize disposable uniform, the broken applying glue of grid heat-transformation of large area honeycomb core；
(3), the present invention passes through design specialized frock, coordinate heater and the air-blast device of particular/special requirement, heating to honeycomb core/glued membrane and air blast are carried out according to linear mode, ensure that synchronization linear type heater is corresponding with the position of the linear type air outlet of air-blast device, the same linear position of honeycomb core glued membrane is heated and air blast, ensure that this place's glued membrane occurs heat broken completely, glued membrane heated time is short simultaneously, and the change of glued membrane chemical characteristic is little；
(4), honeycomb core special tooling of the present invention guarantees that the glued membrane of large area honeycomb core end face is broken once state of the art parameter in journey in heat and kept uniform, consistent；The frock framework cavity shape size adjustable of plane fixed cellular core is whole, to adapt to the honeycomb core of difformity area；The opening size adjustable of U-shaped fixture, to adapt to the honeycomb core of different-thickness size, strong adaptability, usage range is wide；
(5), the present invention can fully, directly utilize the uniform advantage of structural film adhesive surface density, meet large area honeycomb core gridding applying glue to the adhesive uniform requirement of physical distribution state, do not introduce organic solvent fugitive constituent, it is distributed in honeycomb core end face top after glued membrane heat is broken, on honeycomb core sidewall air-vent without impact, improve corresponding sandwich bonding property uniformity and reliability；
(6), the broken technique suitability of glued membrane heat of the present invention is wide, it is possible to for indissoluble/insoluble class formation glued membrane that manual gluing cannot operate.
(7), the broken technique of glued membrane heat of the present invention realizes that epoxy jelly membrane is disposable along aluminium honeycomb core end face, uniform gridization distribution；Test shows that the change of epoxy jelly membrane chemical characteristic is not more than 8%, less than the 12% of traditional-handwork coating technique；Test the peel strength of the broken technique honeycomb sandwich construction corresponding to traditional-handwork coating technique of glued membrane heat with reference to GJB130.8-86, test data show, the peel strength of present configuration is more than 3 times of traditional-handwork.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the honeycomb core end face gridding glue-applying technique method that the present invention breaks based on glued membrane heat；
Fig. 2 is special tooling and the honeycomb core assembling schematic diagram of the honeycomb core end face gridding glue-applying technique method that the present invention breaks based on glued membrane heat；
Fig. 3 is the process chart of the honeycomb core end face gridding glue-applying technique method that the present invention breaks based on glued membrane heat；
Fig. 4 is U-shaped clamp structure schematic diagram in special tooling of the present invention；
Fig. 5 is that in the embodiment of the present invention, typical case's glued membrane heat breaks once journey and shape appearance figure.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
It is illustrated in figure 1 the principle schematic of the honeycomb core end face gridding glue-applying technique method that the present invention breaks based on glued membrane heat；Being illustrated in figure 3 the process chart of the honeycomb core end face gridding glue-applying technique method that the present invention breaks based on glued membrane heat, the present invention specifically includes following steps based on the honeycomb core end face gridding glue-applying technique method that glued membrane heat is broken:
Step (one), adopt special tooling that the honeycomb core 3 treating applying glue is carried out clamping, it is illustrated in figure 2 special tooling and the honeycomb core assembling schematic diagram of the honeycomb core end face gridding glue-applying technique method that the present invention breaks based on glued membrane heat, specific as follows: special tooling includes frock framework 5, multiple U-shaped fixtures 6 and multiple fixing screw 7, the honeycomb core 3 treating applying glue is placed in frock framework 5, by multiple U-shaped fixture 6 clampings on the frame of frock framework 5, two sidewalls making U-shaped fixture 6 are vertical with the frame of the frock framework 5 of respective clamping, and make the two ends of U-shaped fixture 6 clamp the lower edges of the honeycomb core 3 treating applying glue respectively, and be fixed by fixing screw 7, the honeycomb core 3 end face tensioning of applying glue will be treated, make to treat that the end face of the honeycomb core 3 of applying glue is all parallel with the upper and lower end face of frock framework 5.
Frock framework 5 for plane fixed cellular core 3 can be rectangle, square, circle or triangle, frock framework 5 inner chamber size adjustable is whole, the opening size adjustable of U-shaped fixture 6, to adapt to the different-thickness size of honeycomb core 3, the quantity of U-shaped fixture 6 is determined according to the overall dimensions of the honeycomb core 3 with applying glue, and general interval 150mm～200mm lays a U-shaped fixture 6.
It is illustrated in figure 4 in special tooling of the present invention U-shaped clamp structure schematic diagram, U-shaped fixture 6 adopts structural steel material, side is connected by slide fastener with frock framework 5, can along the leg of frame along sliding, the U-shaped opening shape of opposite side, open height is be more than or equal to the thickness of honeycomb core 3, and it is 2～3 honeycomb core lattice that honeycomb core 3 stretches into the distance of U-shaped fixture 6.Frock framework 5 horizontal fixed cellular core 3/ structural film adhesive 2, it is ensured that in scanning process, the broken technological parameter of the heat of honeycomb core 3 surface all structural film adhesives 2 experience is consistent.
The external diameter of fixing screw 7 is not more than honeycomb core 3 core lattice inscribed circle diameter, and frock framework 5 material is aluminium section bar, it is desirable to light weight, good rigidity.
Step (two), by smooth for structural film adhesive 2 paving upper surface at the honeycomb core 3 treating applying glue, structural film adhesive is flexible organic polymer glued membrane, is specially epoxy jelly membrane or cyanate glued membrane, and thickness is 0.01mm～0.25mm.
Step (three), the special tooling that step (two) is obtained and the honeycomb core 3 treating applying glue be placed on heater 1 and drum hot air apparatus 4 between, special tooling distance linear type heater 1 distance be 200mm～300mm, distance drum hot air apparatus 4 distance be 50mm～150mm.Wherein heater 1 is positioned at the top of the honeycomb core 3 treating applying glue, and drum hot air apparatus 4 is positioned at the bottom of the honeycomb core 3 treating applying glue.Wherein linear type heater can be heat lamp or other heater of linear array, and drum hot air apparatus 4 is the air knife structure of air outlet linearly type, and the equal adjustable of heating power of the two, air blast pressure can adjust.
Step (four), special tooling is kept to fix with honeycomb core 3 position treating applying glue, with constant rate of speed mobile heating device 1 and drum hot air apparatus 4, the honeycomb core 3 treating applying glue carries out flat scanning, scanning process ensureing, the linear type air outlet position of synchronization air-blast device 4 is corresponding with the position of linear type heater 1, namely air-out position is corresponding with heating location, the same linear position of honeycomb core 3 is heated and dries by synchronization, ensure that this place's glued membrane occurs heat broken completely, glued membrane heated time is short simultaneously, the change of glued membrane chemical characteristic is little, the present invention makes glued membrane occur heat broken at honeycomb core lattice center, and uniform shrinkage, it is gathered in honeycomb core lattice seamed edge, realize the disposable gridding applying glue of honeycomb core 3 end face.
The heating power of linear type heater 1 and drum hot air apparatus 4 can be adjusted according to the softening point of structural film adhesive 2, and the air blast pressure of linear type drum hot air apparatus 4 can be adjusted according to the gauge of structural film adhesive 2.Linear type heater 1 is relevant to the specification of honeycomb core 3 with the synchronous scanning speed of drum hot air apparatus 4, for:Unit mm/s；Wherein: | | representing and round, L is the length of side of honeycomb core 3 core lattice.
According to structural film adhesive thickness, honeycomb core height, being determined air blast air pressure and blast temperature by engineer testing, high-pressure hot air makes glued membrane occur heat broken at honeycomb core lattice center, then cools down rapidly, bounces back and uniformly assemble.
Step (five), honeycomb core (3) turn-over of applying glue will be treated, repeat step (two)～(four), it is achieved treat the gridding applying glue of honeycomb core (3) lower surface of applying glue.
Due to the fact that honeycomb core 3/ structural film adhesive 2 is positioned at frock framework 5 thickness midline position, it is ensured that the broken technological parameter of the glued membrane heat that the structural film adhesive 2 of honeycomb core 3 second end face experiences is consistent with the structural film adhesive 2 of honeycomb core 3 first end face.Honeycomb core 3 first end face structure glued membrane 2 experienced by 2 the broken scanning of heat, its chemical characteristic, mainly procuring degree, relatively honeycomb core 3 second end face structure glued membrane 2 difference is less than 1%, this is mainly due to the cooling effect of the air blast of linear type drum hot air apparatus 4, and the quick single sweep operation of linear type heater 1 and linear type drum hot air apparatus 4.
Embodiment 1:
The honeycomb core 3 of the present embodiment, its material, specification are porose aluminium honeycomb core material-27-5-0.03 (LF2Y)-HB5443-T24, and overall dimensions is 1300mmX1900mm, namely honeycomb core 3 is aluminium honeycomb core, and the core lattice length of side is 5mm, core wall thickness 0.03mm, there are air-vent, honeycomb core thickness 24mm；The structural film adhesive 2 of the present embodiment is thickness is 0.1mm epoxies structural film adhesive.Require over the broken technique of heat, it is achieved epoxy jelly membrane 2 is distributed in the gridding of aluminium honeycomb core 3 end face, makes epoxy jelly membrane 2 be uniformly distributed along aluminium honeycomb core 3 six seamed edge.
Needed for the present embodiment can horizontal synchronization run linear type heater 1 and linear type drum hot air apparatus 2, linear type heater 1 adopts 2 groups of length of linear pattern to be the linear quartz heating-pipe of 1200mm, heating power is stepless adjustable between 0～2kw, drum hot air apparatus 2 adopts the air knife structure of built-in heating rod, length 2400mm, pressure-air injects in air knife cavity and is initially heated, then from the linear opening high-speed ejection of air knife, form uniform temperature, the hot-air of pressure, heating rod power is stepless adjustable between 0～2kw, it is stepless adjustable that pressure-air injected gas is pressed between 0～0.7MPa.
As shown in Figure 2, frock framework 5 needed for the present embodiment is adopted lightweight, high rigidity aluminium section bar to be connected by corner strip type and forms 2500mmX3000mm rectangular frame, there is inside framework slide bar, framework inner chamber size can be realized from 500mmX500mm to maximum sized adjustment, the thickness of frock framework 5 is 50mm, it is not less than the maximum gauge of respective cell core 3, it is ensured that honeycomb core is not prominent framework upper and lower surface after fixing.U-shaped fixture 6 adopts structural steel material, side is connected by slide fastener with frock framework 5, can along the leg of frame along sliding, another layer of U-shaped opening shape, A/F 50mm, it is not less than the maximum gauge of respective cell core 3, ensure that honeycomb core 3 can insert U-shaped fixture 6 smoothly, and U-shaped opening top and bottom are concordant respectively with frock framework 5, in U-shaped chucking opening correspondence, lower cantalever processing has tapped through hole, is used for installing fixing screw 7.
Concrete heat treatment process step is as follows:
(1) the intensification rheological curve of epoxy jelly membrane 2, is measured, obtaining its softening point temperature is 80 DEG C, differential scanning calorimetry (DSC method) is adopted to verify the constant temperature DSC of epoxy jelly membrane 2 under this softening point temperature, confirm at this temperature, epoxy jelly membrane 2 can maintain at least 1h and procuring degree change be not more than 10%.
At aluminium honeycomb core 3 upper surface paving fritter epoxy jelly membrane 2, use hand-held hair drier, arranging heating-up temperature is 80 DEG C, at a distance of 50mm, epoxy jelly membrane 2 brushing different pressure hot blast, observes the broken pattern of its heat, can make the minimum air pressure that epoxy jelly membrane 2 occurs heat broken is 0.06MPa, being designated as the broken air blast pressure of heat, blast temperature selects epoxy jelly membrane 2 softening point temperature 80 DEG C.
Linear type heater 1 adopts 2 level of synchronization sweep speeds of linear pattern, for the half of porose aluminium honeycomb core material-27-5-0.03 (the LF2Y)-HB5443-T24 aluminium honeycomb core core lattice length of side, i.e. 5/2 (mm/s), rounds as 3mm/s.
(2), the upper and lower end face that aluminium honeycomb core 3 contacts with epoxy jelly membrane 2 is cleaned up, dries.According to aluminium honeycomb core 3 overall dimensions, adjust special tooling framework 5 inner chamber size and meet 1300mmX1900mm, along frock framework 5 four limit, lay a U-shaped fixture 6 according to every spacing 150mm.Aluminium honeycomb core surrounding is filled in all 2 core lattice of U-shaped fixture 6 tapping, by fixing screw 7 through aluminium honeycomb core 2, is fixed on U-shaped fixture 6, stretches tight frock framework 5 inner chamber, make aluminium honeycomb core 3 in flat state, as shown in Figure 2；
(3), at one layer of epoxy jelly membrane 2 of the smooth paving in aluminium honeycomb core 3 one side end face；
(4), by frock framework 5 being placed between adjustment line style heater 1, line style drum hot air apparatus 4, the spacing of frock framework 5 and line style drum hot air apparatus 4 is 50mm, with linear type heater 1 apart from for 240mm.Arranging line style heater 1 heating-up temperature is 80 DEG C (heater can adjust conducting self-heating power according to glued membrane actual temperature feedback closed loop, to meet this target temperature), and line style drum hot air apparatus 4 heating-up temperature is 80 DEG C, and air blast pressure is 0.06MPa；
(5), arrange line style heater 1, line style drum hot air apparatus 4 horizontal scan rate is 3mm/s, aluminium honeycomb core 3/ epoxy jelly membrane 2 is carried out flat scanning, making epoxy jelly membrane 2 experience softening, tympanites, finally break, shrink and uniform, gridding is gathered in aluminium honeycomb core 3 core lattice wall end face, being illustrated in figure 5 in the embodiment of the present invention typical glued membrane heat breaks once journey and shape appearance figure.
(6), by aluminium honeycomb core 3 turn-over, step (three), step (four), step (five) are repeated, it is achieved applying glue of formatting that the heat of aluminium honeycomb core 3 second end face is scored a goal.
The broken technical process of experience glued membrane heat, it is achieved epoxy jelly membrane is disposable along aluminium honeycomb core end face, uniform gridization distribution；The change of epoxy jelly membrane chemical characteristic is not more than 8%, less than the 12% of traditional-handwork coating technique；Test the peel strength of the broken technique honeycomb sandwich construction corresponding to traditional-handwork coating technique of glued membrane heat with reference to GJB130.8-86, test data show, the peel strength of present configuration is more than 3 times of traditional-handwork.
The above; being only the detailed description of the invention that the present invention is best, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; the change that can readily occur in or replacement, all should be encompassed within scope.
The content not being described in detail in description of the present invention belongs to the known technology of professional and technical personnel in the field.
Claims (8)
1. the honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat, it is characterised in that comprise the steps:
Step (one), adopt special tooling that the honeycomb core (3) treating applying glue is carried out clamping, specific as follows: described special tooling includes frock framework (5), multiple U-shaped fixtures (6) and multiple fixing screw (7), the honeycomb core (3) treating applying glue is placed in frock framework (5), by multiple U-shaped fixture (6) clampings on the frame of frock framework (5), make two sidewalls of U-shaped fixture (6) vertical with the frame of the frock framework (5) of respective clamping, and make the two ends of U-shaped fixture (6) clamp the lower edges of the honeycomb core (3) treating applying glue respectively, and be fixed by fixing screw (7), honeycomb core (3) the end face tensioning of applying glue will be treated, make the end face treating the honeycomb core (3) of applying glue all parallel with the upper and lower end face of frock framework (5)；
Step (two), by structural film adhesive (2) paving upper surface at the honeycomb core (3) treating applying glue；
Step (three), special tooling step (two) obtained and the honeycomb core (3) treating applying glue are placed between heater (1) and drum hot air apparatus (4), and keep at a distance, wherein heater (1) is positioned at the top of the honeycomb core (3) treating applying glue, and drum hot air apparatus (4) is positioned at the bottom of the honeycomb core (3) treating applying glue；Described heater (1) is linear type heater, the air outlet linearly type of described bulging hot air apparatus (4)；
Step (four), maintenance special tooling are fixed with honeycomb core (3) position treating applying glue, with constant rate of speed mobile heating device (1) and drum hot air apparatus (4), the honeycomb core (3) treating applying glue carries out flat scanning, the air outlet position making synchronization drum hot air apparatus (4) is corresponding with the position of linear type heater (1), namely air-out position is corresponding with heating location, it is achieved the disposable gridding applying glue of honeycomb core (3) end face；
Step (five), honeycomb core (3) turn-over of applying glue will be treated, repeat step (two)～(four), it is achieved treat the gridding applying glue of honeycomb core (3) lower surface of applying glue.
2. a kind of honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat according to claim 1, it is characterized in that: in described step () frock framework (5) be rectangle, square, circle or triangle, the quantity of U-shaped fixture (6) is determined according to the overall dimensions of the honeycomb core (3) treating applying glue, lays a U-shaped fixture (6) at interval of 150mm～200mm.
3. a kind of honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat according to claim 1 and 2, it is characterized in that: the open height of described U-shaped fixture (6) is be more than or equal to the thickness of honeycomb core (3), and it is 2～3 honeycomb core lattice that honeycomb core (3) stretches into the distance of U-shaped fixture (6).
4. a kind of honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat according to claim 1 and 2, it is characterized in that: the external diameter of described fixing screw (7) is not more than honeycomb core (3) core lattice inscribed circle diameter, and described frock framework (5) material is aluminium section bar.
5. a kind of honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat according to claim 1, it is characterized in that: in described step (two), structural film adhesive is flexible organic polymer glued membrane, being specially epoxy jelly membrane or cyanate glued membrane, thickness is 0.01mm～0.25mm.
6. a kind of honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat according to claim 1, it is characterised in that: in described step (three), special tooling is 50mm～150mm with the distance that distance is 200mm～300mm and drum hot air apparatus (4) of linear type heater (1).
7. a kind of honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat according to claim 1, it is characterized in that: the heater that several heaters that described step (three) cathetus type heater (1) is linear array are formed, described heater is heat lamp.
8. a kind of honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat according to claim 1, it is characterized in that: described linear type heater (1) is relevant to the specification of honeycomb core (3) with the synchronous scanning speed of drum hot air apparatus (4), for:Unit mm/s；Wherein: | | represents and rounds, and L is the length of side of honeycomb core (3) core lattice.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410791084.5A CN104494276B (en) | 2014-12-18 | 2014-12-18 | A kind of honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat |
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| CN201410791084.5A CN104494276B (en) | 2014-12-18 | 2014-12-18 | A kind of honeycomb core end face gridding glue-applying technique method broken based on glued membrane heat |
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| Publication Number | Publication Date |
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| CN105172280B (en) * | 2015-10-10 | 2018-09-25 | 中国电子科技集团公司第四十八研究所 | Covering honeycomb sandwich board and preparation method thereof |
| CN106427075B (en) * | 2016-10-20 | 2018-09-25 | 江苏嘉斯顿船舶装备科技有限公司 | A kind of cellular board of built-in aluminium frame |
| CN106393710A (en) * | 2016-11-08 | 2017-02-15 | 深圳市知宇新材料应用研究院有限公司 | Gluing method, structure and parts of micro-perforated panel and honeycomb sandwich structure |
| JP6336700B1 (en) * | 2018-02-22 | 2018-06-06 | 株式会社テック | Method and apparatus for manufacturing honeycomb core with domed adhesive layer |
| CN109049175A (en) * | 2018-08-15 | 2018-12-21 | 广东红棉乐器股份有限公司 | A kind of two-sided board adhesion method of guitar |
| JP6646175B1 (en) * | 2019-06-29 | 2020-02-14 | 株式会社テック | Method and apparatus for manufacturing honeycomb material using domed adhesive layer |
| CN110789184B (en) * | 2019-10-31 | 2021-09-14 | 广东华粘新材料研究有限公司 | Process for increasing bonding strength of aluminum honeycomb plate |
| CN110789185B (en) * | 2019-10-31 | 2021-09-14 | 广东华粘新材料研究有限公司 | Continuous production process of aluminum honeycomb plate |
| TWI728570B (en) * | 2019-11-25 | 2021-05-21 | 易華電子股份有限公司 | Method to reduce the overflow of the ink of a flexible printed circuit board |
| CN113199097B (en) * | 2021-04-29 | 2022-04-12 | 大连理工大学 | Flexible fixing system and method for processing metal-based honeycomb material by linear cutting |
| CN113400768B (en) * | 2021-05-31 | 2022-11-29 | 上海复合材料科技有限公司 | Hot broken honeycomb of glued membrane is assisted straining device for solar wing shaping |
| CN113579773A (en) * | 2021-07-12 | 2021-11-02 | 哈尔滨工业大学 | Tool suitable for clamping honeycomb cores of various specifications and sizes |
| CN113580596A (en) * | 2021-07-12 | 2021-11-02 | 哈尔滨工业大学 | Process method for automatically processing hot breaking of adhesive film |
| CN113467547A (en) * | 2021-07-12 | 2021-10-01 | 哈尔滨工业大学 | Constant-temperature self-adaptive temperature control system for hot breaking of adhesive film |
| CN114229044B (en) * | 2021-11-18 | 2023-07-25 | 北京卫星制造厂有限公司 | Preparation method of revolving body heat-proof suit |
| CN114654864B (en) * | 2022-02-17 | 2023-06-09 | 成都飞机工业（集团）有限责任公司 | Preparation method of honeycomb sandwich structure acoustic liner plate |
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| CN102806701A (en) * | 2012-08-01 | 2012-12-05 | 西安交通大学 | Hot melt glue joint pyramid lattice metal sandwich plate and preparation method thereof |
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