• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A resinous material suitable for the fabrication of laminated structures comprising a first layer (10) of resin and at least one second layer (12) of filled resin contiguous with the first layer, the second layer being flowable under a compressive force. In the manufacture of a reticulated laminated structure of substantially uniform thickness, the thickness of the second layer varies in accordance with the number of first layers overlying one another at crossover nodes in the reticulated structure, with the second layerflowing from between the plies of the first layer at the nodes due to compressive forces applied to achieve such substantially uniform thickness.
    公开号:SU1041024A3
    申请号:SU802949054
    申请日:1980-07-04
    公开日:1983-09-07
    发明作者:Гамильтон Блэд Лейв；Фрэнсис Гриффин Чарльз
    申请人:Локхид Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    2. Resinous material of claim 1, characterized in that the first layer of polycarbonate or epoxy resin further comprises graphite fibers.
    3 A resinous material according to claim 1, characterized in that the second layer of epoxy resin is filled with microspheres,
    4. The resinous material according to claim 1, characterized in that a separating fiberglass is arranged between the first and second layers of epoxy resin.
    5. A mesh laminated structure comprising intersecting layers and nodal intersections from layers of resinous material containing a resin layer with a certain degree of curing, characterized in that, in order to obtain a uniform thickness construction, intersecting, nodal and interstitial intersections are made of layers of resinous material containing a layer of polycarbonate or epoxy resin with a degree of curing that prevents the resin from flowing under the influence of a compressive load, intersecting layers and inter-nodal intersections to contain a layer-filled epoxy resin having a degree of curing.
    providing for fluidity under the influence of compressive load, and the thickness of the layers of filled epoxy resin intersecting layers varies depending on the number of layers of polycarbonate or epoxy resin lying at the nodal intersections.
    6. A method of manufacturing a mesh laminated structure comprising intersecting the laying of layers of resinous material containing resin layers with a certain degree of curing, in accordance with a predetermined pattern, fixing nodal intersections and subsequent curing, characterized in that, in order to obtain a design of uniform thickness, Laying layers of resinous material containing the first layer of polycarbonate or epoxy resin with a degree of curing that prevents the resin from flowing under the influence of compressive loads, and a second sub-filled epoxy resin with a degree of cure that provides fluidity under the influence of a compressive load with a compressive force applied at the nodal intersections to remove a specified amount of the filled resin from the nodal intersections. .
    one
    The invention relates to resinous materials suitable for the manufacture of layered structures (structures) and, in particular, to resinous materials suitable for the manufacture of mesh laminated structures of substantially uniform thickness.
    In the manufacture of mesh structures, such as geodesics, it is desirable to be able to use the unique properties of promising composite materials, for example, termoreactive resins containing unidirectional fibers oriented parallel to the axis of the separate lines of action of the load in such structures. The multiple of layered bonds formed from resin and fibers,
    arranged in this way will give a statically indefinable construction, the fibers will be continuous and the loads will be transferred from one bond to another as a result of a shift in their intersections. One of the main requirements in the design and manufacture of viable geodetic structures
    10 is the stabilization of individual layers of connections between nodal intersections.  If the structure is composed of two intersecting links, each consisting of one or several how many alternating layers, a gap is formed between the layers in the gap between the nodal intersections. Similarly, if the structure is composed of three intersecting with connections, a gap is formed between the layers due to the connection, equal to the thickness. the skin is two layers.  Thus, the structure is unstable and very uneven in thickness.  In order to obtain a stable and uniform thickness of the mesh structure, the resinous material used to fill the gaps between the layers in the bonds must completely fill the gaps, but should be absent at the nodal intersections;.  In addition, since the ability of such resinous materials to withstand and transfer loads is always low, the presence of such resinous material at the nodal intersections makes the mesh structure much more weak.  .   A resinous material for reticulated laminated structures in the form of a continuous tape, which is an oriented glass fiber filler previously impregnated with a thermosetting resin, such as epoxy, and partially cured, is known. e.  the ability to flow under the influence of heat and flow and the known mesh network is a structure consisting of intersecting flagella, impregnated with a thermosetting binder, which at the intersection are intertwined with other C0 harness. There is a known method for manufacturing mesh structures, including the installation in accordance with with a pre-selected pattern of the first layer of resin-impregnated harness material, stacking on top of the said layer of material in accordance with the specified pattern of the second layer. the material is resin-impregnated harness, and their knotted intersections are interlaced with other bundles t 1 J.  A disadvantage of the known resinous material, the reticulated layered structure and the method of its production is that the laminated structure does not have a uniform thickness of the resin layers.  The aim of the invention is to obtain a structure of uniform thickness. The goal is achieved by the fact that the resinous material for a mesh laminated structure containing resin layers with a certain degree of curing contains a first layer of polycarbonate or epoxy resin with a degree of curing that prevents fluidity under the influence of a kimi load, and a second layer filled with epoxy - resins with a degree of curing that ensures fluidity under the influence of compressive load.  The first layer of polycarbonate or epoxy resin may additionally contain graphite fibers. The second layer of epoxy resin may be filled; microspheres.  A separating fiberglass can be located between the first and second layers of epoxy resin.  8, a cross-layered structure comprising intersecting layers and nodal intersections from layers of resinous material containing a resin layer with a certain degree of curing, intersecting, knotted and interstitial intersections are made in.  from layers of resinous material containing a layer of polycarbonate or epoxy resin with a degree of curing, which prevents the resin from flowing under the influence of szhinak-cheek loads, intersecting layers and inter-nodal intersections in addition. contain a layer of filled epoxy resin with a degree of curing that ensures fluidity under the influence of compressive load and thickness. on the layers of filled epoxy, the intersecting layers vary depending on the number of polycarbonate or epoxy layers lying in the nodal intersections.  According to the method of making a mesh laminated structure comprising intersecting the laying of layers of resinous material containing resin layers with a certain degree of curing, in accordance with a predetermined pattern, fixing the nodal intersections and subsequent curing, layering the layers of resinous material containing the first polycarbonate or epoxy resin with a degree of curing that prevents the resin from flowing under the influence of a compressive load, and a second layer of filled epoxy resin with a degree of about its approved, allowing flow under the influence of compressive force with the application of the compressive force at the nodal ne | intersection x to remove. of.  nodal intersections given, the amount of resin filled.  .  Fig. 1 schematically shows a first embodiment of the invention, a perspective view; in fig.  the same, the second option; in fig.  3 the same, tertr option; in fig.  flat mesh structure according to the invention with the intersection of two bonds; in fig.  5 - fragmentary perspective.  view (partly in section, on an enlarged scale. nodal intersection of the structure shown in.  FIG.  ); FIG. 6 is a section A-A in FIG.  five; in fig.  7, a three-element intersection flat grid structure of the invention, type XY; in fig.  8 is a fragmentary perspective view on an enlarged scale of the nodal intersection of the structure shown in FIG.  6; in fig.  9-11, illustrating the layering process at the nodal intersection shown in FIG.  8, with FIG. 1 shows section BB in FIG. 8; FIG.  12 is a flat grid construction of the invention with intersections of two, three and four links, a perspective view; Fig. 13 shows a cylindrical geodesic structure according to the invention, a fragmentary perspective view; in fig.  14 —the rig used to manufacture the structure shown in FIG.  9, in FIG.  15 — node I in FIG.  AND; in fig.  16 - section bb In FIG. N.  FIG.  1 shows a perspective view of a first embodiment of a resinous material according to the invention.  The layer 1 of a thermoplastic or thermosetting resin is coated with a resin filled cjjpeM 2, often referred to as a synthetic lining layer.  Layer 2 contains a multitude of particles 3 which may be, for example, glass microspheres with a diameter of about 60 microns, balls, mica or short staple fibers, and 9LOY 2 consists of a resin that can flow under the action of compressive force.  The fluidity can be increased by applying heat (for example,) to the layer 2 during the application of compressive force,. The resin layer 1 is usually about 0.007-0.010 inch thick (approximately 0-18-0.25 mm), and as soon as it is completely cured it becomes 0.005 inch thick. The thickness of the filled resin is usually 0.005 times the thickness of 0.005 inch. n, where n is the number of layers 1 that will intersect in the node when creating flat mesh or geodetic structures of the proposed resinous material cut 1 into tapes.  Usually, the material is prepared in the form of continuous pieces about 3 inches wide (76 mm), and then cut in the longitudinal direction into 0.1-0.5 inches wide (2, 7 mm) tape used in the above structures, however prepared tapes wider or already specified sizes.  As shown in FIG. 1, layer 1 may also contain fibers k (for example, graphite), oriented so as to give layer 1 an increased structure strength.  Typical thermoplastic or thermosetting resins that can be used for layer 1 are polycarbonate and epoxy resins, and a typical resin that can be used for filled layer 2 is epoxy resin, and layer 2 can be filled with 30 weight L microspheres.  FIG.  Figure 2 shows a second embodiment of a resinous material according to the invention, in which layer 1 and the filled layer 2 are separated by a separating dense woven canvas 5, which is used to prevent infiltration of filled resin through layer 1 when pressure is applied to create mesh structures.  Separating canvas 5 has a thickness of 0.002-0.003 inches (0.05-0.076 mm) and. consists of a plastic material (for example, fiberglass), compatible with resins, on which layers 1 and 2 are formed.  Resin layer 1 contains fibers and is suitable for those applications where the ability to withstand the load is not necessary, for example for use as a membrane.  The type of fibers used in layer 1 depends on whether the load is compressive, twisting, stretching or shearing.  As shown in FIG.  2, the thickness of layer 2 is twice the thickness of layer 1 and is suitable for applications where the intersection node is the intersection of three bonds.  FIG. "3 shows a third embodiment of the invention; in which the layer 1 has on both sides separating canvases 5 and 6, to which the filled layers 2 and 7 are attached.  The filled layers 2 and 7 contain micro spheres 3, the filled layer 2 has iTaKyib the same thickness as layer 1, and the thickness of filled layer 7 is twice the thickness of layer 1, This design is suitable for use in a mesh design with the intersection of four links .  As shown, layer 1 is also. contains a large amount of graphite or other type of fibers 4.  The material options shown in FIG.  1-3 can be made in various ways.  In accordance with one of the filling methods, the layer 2 and the filler 3 can be sprayed with the help of a two-nozzle device onto the resin layer 1 in the required proportions, and these materials are mixed in air at the exit of the nozzles.  The film and the filled coating pass chill. through a group of rollers to ensure proper thickness.  According to another method, a layer 2 of a filled resin can be prepared by mixing a known weight of the filler 3 with a metered amount of thermosetting resin.  Then, resin layer 1 is pulled through a set of rolls, with the mass of filled resin placed in the upper part of the roll joint.  The gap between the rollers is such that when layer 1 is pushed through it, the proper amount of resin filled wipes layer 1, forming layer 2.  In accordance with another option, the filled resin could be applied onto layer 1 and layer 2 under the doctor blade.  By pulling the layer 2 through the gap under the doctor blade on layer 1, an appropriate amount of resin filled would form, forming layer 2.  If it is necessary to use scrim 5, it is simply put on the resin layer 1 before applying the filled resin.  FIG.  4 shows a flat grid construction 8 of the invention with a plurality of intersections 9 of two bonds.  Structure 8 is composed of a large number of sheets of material, such as shown in FIG.  1, cut into a plurality of ribbon-like strips and stacked one on top of the other to provide the required construction of strength and integrity.  The configuration 8 is usually obtained by placing the first strip of tape in the first direction, the second strip of ribbon in the second direction, the third strip again in the first direction, and so on.  Since the structure 8 has a double intersection, the thickness of the structure 8 at the intersection 9 for each pair of intersecting strips of tape can only be equal to the thickness of two layers 1 for the structure 9 of uniform thickness.  Since the syntactic resin layer 1 is capable of flowing during compression, a sufficient compressive force is applied at each node intersection 9, causing the spreading of the syntactic resin layers 2. at the intersection, as a result of which, there is only a two-layer structure.  Obviously, in the zones of intersections E containing only one strip of tape, layer 1 and layer 2 together form a thickness equal to the thickness of the two layers 1 at the nodal intersections 9.  The resulting structure of any one of the nodal intersections 9 of the mesh structure 8 for a pair of intersecting strips of tape is shown in fmg.  5 and 6.  The nodal intersection n 9 “shown in FIG.  5, consists of the first layer 1.  with the first filled layer 2 on it and the second layer l with the second filled layer 2 on it.  How .  shown, layer 1 intersects layer 1, which is first laid down at the nodal intersection 9.  Upon application of pressure (and heat, if necessary), the filled layers 2 and 2 are 92% squeezed out - from intersection 9 and - flow into zones 10 adjacent to the intersection of two strips.  Outside of intersection 9, both the overlapped layers 2 and 2 remain unchanged, with the result that intersection 9 and exiting it have the same thickness.  .  FIG.  7 shows a plan view from above of a flat mesh structure 11 along fig.  a multi-triple intersection with 12 intersections.  The structure 11 is made by initially placing one complete set of strips of tape in the first direction, a full set of strips of tape in the third direction, a second full set of strips of tape again in the first direction, and so on.  Since the structure 11 contains the intersection of three links, each of the filled layers 2 is twice as thick as layer 1, and the structure 11 can be made of a plurality of strips of material, as shown in FIG.  2  , FIG.  8 shows a typical nodal intersection of structure 11 for three intersecting links.  For; Both livers of a uniform thickness of the mesh structure 11 in each tape put pressure under laying, for example, by means of a roller following the packing tape, a guide and providing application, a pressure of 25 psi.  inch (1.75. kg / cm) at the nodal intersections 12, and the position of the roller in the cell is set for three layers of ribbons.  When laying the first set of layers 1, 2. as shown in FIG.  9, which roller has no effect on the height of the first one. a set of layers.  When laying the second complex, the sum of the thicknesses of the first layers of 1 set of layers A, 2 and the second.  a set of layers 1, 2 is equal to the neck. These thicknesses: two thicknesses are separate: - layers 1, 1 / and four thicknesses - separate layers 2. , 2.  When prokh. During each intersection of the roller, four thicknesses of layers 2, 2 are compressed to a single thickness, as a result of which the obtained thickness of intersection 12 is three thicknesses:. two give layers 1, 1 and one layer 2.  The resulting construction of two sets of layers of the structure is shown in section.  . .  FIG.  ten.  Laying the third set.  Layers of l, 2 again gives six thicknesses in feathers, section 12: - three thicknesses of layers 1, 1 and 1, one remaining thickness. layer 2 and two - the thickness of layer 2.  After exposure.  intersection of the roller 12 all filled layers are squeezed out and only 1, 1 remain, as shown in fig fng.  eleven.  Thus, each of the three intersections.  12 has a three-thickness structure consisting of layers 1, l, and t, with each connecting section between the node intersections 12 also having a three-thickness structure consisting of one thickness of layers 1, l and l, and two thicknesses of layers 2, Z.  FIG.  12 shows a flat grid structure 13 having intersections of two, three and four of its own.  Zey.  Due to the presence of four intersections, tape is used.  As shown in FIG.  3, the cotbT5a has one layer thickness G and three.  the thickness of the filled resin constituting layers 2 and, 7. .  The amount of resin filled from each intersection depends on the number of bonds, trans. intersecting at each node.  For example, in the intersection.  And, where two bonds intersect, the final knot structure for each set of intersecting layers consists of two thicknesses of the resin layer and two thicknesses of the filled resin layer.  At a three-way intersection of 15, the final structure of the assembly for each set of intersecting layers will consist of three thicknesses of the resin layer and one thickness of the filled resin layer.  Finally, at intersection 16, where four bonds intersect, is finite.  The structure of the node for each set of intersecting layers will consist of four thicknesses of the resin layer and does not contain a single thickness, the resin filled layer, since all the material of the resin filled layer 2 is extruded into the surrounding nodal intersection 16 region.  FIG.  13 shows fragmentary. perspective view cylindrical; What geodesic structures according to the invention.  Geodetic design. 17 consists of three main intersections, such as intersections in construction 11 of FIG.  6, with about the same layering.  FIG.   illustrate the rigging and manufacturing method of the cylindrical geodesic structure 17 shown in FIG.  9.  As shown in FIG.  l4-l6, cylindrical wood opra. 18 is covered with a rubber layer 19 having a series of grooves 20 oriented in accordance with a specific pattern defining the configuration of the geodesic structure 17.  The strips consisting of layers 1, 2 of non-filled and filled resin are laid in the manner described for construction 11 in the grooves 20 and continuously; is wrapped around the mandrel 18 with a rubber layer 19, and after applying strips on one another, the syntactic resin is squeezed out from the nodal intersections.  As shown in FIG.  It, at each junction intersection, is provided for.  11 are ZONES 21 for spreading syntak. tichesky pitch.  A set of covering cylindrical tools 22, made of steel or aluminum and lined with skin 23, is installed around the mandrel 18 with a reaine layer 19.  The vacuum bag 24 surrounding the enclosing tool 22 is hermetically sealed to the rubber layer 19 and creates a vacuum therein.  Vacuum makes re. The zine layer 19 is stretched and pressed against the female tool 22, while itself. bag 4.  . 12 2k is attracted to tool 2, then the mandrel 18 is removed and the entire kit is then placed into the autoclave to isolate, for example, at, 100 psi.  inch in full in those. one hour to ensure polymerization of sheaves, compaction of layered intersections, removal of excess c. moles and gazoobraz. coy components.  The proposed resinous sheet) material. dp is suitable for making mesh laminated structures of uniform thickness.   .   .     l
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    权利要求:
    Claims (6)
    [1]
    1. A resinous material for mesh layered structures containing resin layers with a certain degree of cure, which is necessary in that, in order to obtain a structure of uniform thickness, it contains a first layer of polycarbonate or epoxy resin with the degree of cure, which excludes the fluidity of the resin under the influence of a compressive load, and the second layer of filled epoxy resin with a degree of cure / provides fluidity under the influence of a compressive load.
    [2]
    2. The resinous material according to claim 1, characterized in that the first layer of polycarbonate or epoxy resin further comprises graphite fibers.
    [3]
    3 / Resinous material according to π. 1, characterized in that the second layer of epoxy resin is filled with microspheres.
    [4]
    4. The resinous material according to p. 1, characterized in that between the first and second layers of epoxy resin is a separating fiberglass.
    [5]
    5. Mesh layered structure, including intersecting layers and nodal intersections from layers of resinous material containing a resin layer with a certain degree of curing, characterized in that, in order to obtain a uniform thickness structure, intersecting, nodal and interstitial intersections are made of layers of resinous material containing a layer of polycarbonate or epoxy resin with a degree of cure, excluding the fluidity of the resin under the influence of a compressive load, intersecting layers and interstitial intersections contain a filled epoxy resin layer with a degree of cure that provides fluidity under the influence of> compressive load, and the thickness of the layers of the filled epoxy resin of intersecting layers varies depending on the number of polycarbonate or epoxy resin layers lying at the nodal intersections.
    [6]
    6. A method of manufacturing a mesh layered structure, including intersecting stacking of layers of resinous material containing resin layers with a certain degree of cure, in accordance with a given pattern, fixing the nodal intersections and subsequent curing, characterized in that, in order to obtain a uniform thickness design, laying layers of resinous material containing a first layer of a polycarbonate or epoxy resin with a degree of cure, preventing the resin from flowing under the influence of compressive stress pouches, and a second layer of filled epoxy resin with a degree of cure, providing fluidity under the influence of a compressive load with the application of compressive force at the nodal intersections to remove from the nodal intersections a given amount of filled resin.
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    同族专利:
    公开号 | 公开日
    AU5244879A|1980-05-15|
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    WO1980000938A1|1980-05-15|
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    EP0011436B1|1983-01-12|
    US4284679A|1981-08-18|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/957,805|US4284679A|1978-11-06|1978-11-06|Filled resin coated tape|
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