Method for manufacturing of pipe from flaky composite material and pipe made of flaky composite material
FIELD: technological processes.
SUBSTANCE: inventions relate to pipe of flaky composite material and method of its manufacturing. Method for manufacturing of pipe includes winding of inner glass plastic layer onto mandrel, bonding of intermediate foam plastic layer and winding of ribs and outer layer of glass plastic. In intermediate foam plastic layer there are circular grooves arranged for location of ribs. Ribs and outer layer is wound in a single technological operation by bundle of cross threads. Bundles are equipped with longitudinal threads, using method of cross-fibred longitudinal-transverse winding. At the same time longitudinal threads are bent as bundle changes from winding of external layer to winding of ribs and back with filling of each groove by mentioned bundle till ribs are formed.
EFFECT: improved manufacturability and reliability of glass plastic pipes operation.
2 cl, 4 dwg
The group of inventions relates to the field of mechanical engineering and can be used to create a box plot of the launch tubes of the layered composite material of polygonal cross-section for missiles with fins.
Known the launch tube by USA patent No. 4646618, NCI 89-20, publ. 1987 containing layered fiberglass power shell.
Known launch tube according to French patent No. 2445922, MKI F16 L 9/12, 1980, containing power shell made of laminated composite material.
A known method of manufacture of the launch tubes and the launch tube on RU # 2153983 C2 from 30.04.98,, MKI7VS 53/82, which implements a method of manufacturing tubes of the layered composite material by the method of longitudinal-transverse winding.
A known method of manufacture of the launch tubes and the launch tube on RU # 2201345 from 29.05.2001,, MKI7VS 53/82, which implements a method of manufacturing tubes of the layered composite material by the method of circular winding.
The known method of the cross-longitudinal-transverse winding fiberglass power shells and power shell, made this way by the materials Handbook "Composite materials" Ed. by V.V. Vasiliev, M. engineering, 1990, p.46, 47, 473.
The known method of the cross-longitudinal-transverse winding fiberglass power shells, unveiled in Patan the e RU # 2236350, publ. 20.09. 2004, MCI7VS 53/82, "a Machine for the cross-longitudinal-transverse winding fiberglass".
Known the launch tube of polygonal cross-section, containing material layers and frames EN No. 2219470 from 06.02.2002,, MKI7F41F 3/042.
Also known a method of manufacturing the launch tubes and the launch tube RU # 2115056 from 20.06.96,, MKI7F41F 3/042.
In the known solution implements a method of manufacturing a pipe from a layered composite material comprising a winding on the mandrel of the inner layer of fiberglass, the intermediate bonding the foam layer, the winding frames and the outer layer of fiberglass.
Known tube made of a layered composite material consists of an inner and outer shells made of fiberglass, an intermediate foam layer and frames.
The disadvantage of this method is its poor processability due to the run winding of the frames and the outer sheath of independent operations. In addition, the disadvantage is the low quality of construction due to the low bonding strength of the frames with the outer shell, and the associated highest weight of the pipe.
A disadvantage of the known pipe is the low reliability of its work due to the low bonding strength of the frames with the outer shell, as well as the high mass of the structure.
Know the fair way and the famous trumpet, as the closest to the technical essence and the achieved result, selected as a prototype.
The technical challenge which sent a group of the claimed invention, is the creation of GRP pipes with advanced technology and high reliability.
The technical result that can be achieved by solving the problem for the method, is to improve the processability of the pipes due to overlapping operations for winding frames and the outer shell, as well as to improve design quality by increasing the strength of the connection of the ribs with the outer skin and the reduction of its weight.
The technical result that can be achieved by solving the problem for a device is to increase the reliability of the pipe by increasing the bonding strength of the frames with the outer skin and the reduction of its weight, as well as to improve manufacturability of the design.
Tasked with achievement of the technical result is achieved owing to the fact that the method of manufacturing tubes of the layered composite material includes a winding on a mandrel of the inner layer of fiberglass, the intermediate bonding the foam layer, the winding frames and the outer layer of fiberglass, and in accordance with the invention in the foam layer perform the annular grooves for the placement of the frames, reel up the frames and the outer layer of a single process operation beam transverse threads, providing bundles of longitudinal threads, using, for example, the method of the cross-longitudinal-transverse winding, performing the bends of the longitudinal filaments in the transition of the beam from the winding of the outer layer to the winding frames and back filling each groove of the said beam prior to the formation of the frames.
For device tasked with achievement of the technical result is solved in that the tube of laminated composite material consists of an inner and outer shells made of fiberglass, an intermediate foam layer and frames, and in accordance with the invention, the ribs and the outer casing is an integral part of the beam transverse filaments with longitudinal threads, and fastened together referred longitudinal threads, which on the last area of this bond is executed bends.
Distinctive features of this method are the following characteristics:
in the intermediate foam layer perform an annular groove for positioning of the frames is a sign of significant, provides a new sequence of operations aimed at solving the problem with the achievement of the technical result in the enhancement of product quality by reducing its mass, as the availability to navok provides winding them thinner frames without slipping layer;
- winded frames and the outer layer of a single process operation beam transverse threads is a sign of significant, provides a new sequence of operations and their new version, aimed at solving the problem with the achievement of the technical result at improving the processability due to overlapping operations;
- providing bundles of longitudinal threads, using, for example, the method of the cross-longitudinal-transverse winding is a sign of significant, provides new enforcement operations aimed at solving the problem with the achievement of the technical result on improving the workmanship in the design by increasing the strength of the elements at the location of the reinforcing material of the outer shell and the frames in the areas of basic loads;
- performing the bends of the longitudinal filaments in the transition of the beam from the winding of the outer layer to the winding frames and back filling each groove of the said beam prior to the formation of the frames is a sign of significant, provides a new sequence of operations and their new version, aimed at solving the problem with the achievement of the technical result at improving the manufacturability and quality of fabrication due to overlapping operations and increase the strength of the connection span is outow and the outer shell structural elements instead of adhesive bonding.
Distinctive features of the device are the following characteristics:
- the frames and the outer casing is an integral part of the beam transverse threads is a sign of significant, provides new elements, new location and a new relationship, aimed at the solution of the problem with the achievement of the technical result in the increase of technological design due to overlapping operations;
- with longitudinal threads is a sign of significant, provides for the presence of new elements aimed at solving the problem of achieving a technical result, to increase the reliability of the pipe by increasing the strength of the elements at the location of the reinforcing material of the outer shell and the frames in the areas of basic loads;
- bonded mentioned longitudinal threads, which on the last area of this bond is executed bends signs of significant, include new items, new location and a new relationship, aimed at solving the problem of achieving a technical result, to increase the reliability of the pipe by increasing the strength of the connection of the frames and the outer shell structural elements instead of adhesive bonding.
These distinctive when the Naki are significant, because each separately and all together aimed at solving the problem of achieving a technical result. The use of a single essential distinguishing features in the known solutions are not found, which describes the technical solutions according to the criterion of "novelty".
One set of new essential features of a General known provides the solution of the problem with the achievement of the technical result and describes the proposed technical solutions are significant differences in comparison with the prior art and analogues. These technical solutions are the result of research and experimental work to improve the manufacturability and reliability of launch tubes without the use of known design decisions, recommendations, materials and possess the obviousness that demonstrates their compliance with the criterion of "inventive step".
The invention is illustrated by drawings, where figure 1 shows a General view (a perspective view) of the pipe, figure 2 is a longitudinal section of the pipe, figure 3 - cross section of the pipe, figure 4 - cross section of the hull.
A method of manufacturing a tube 1 made of laminated composite material includes a winding on a mandrel of the inner layer 2 made of fiberglass, leilanie intermediate foam layer 3, the winding frames 4 and the outer layer 5 made of fiberglass. In the intermediate foam layer 3 perform the annular groove 6 for the location of the frames 4, reel up the frames 4 and the outer layer 5 of the unified technological operation beam transverse (circular) thread 7, providing the beams 7 of the longitudinal threads 8, using, for example, the method of the cross-longitudinal-transverse winding, performing the bends 9 longitudinal threads 8 at the transition of the beam from the winding of the outer layer 5 to the winding frames 4 and back filling each groove 6 of the said beam prior to the formation of the frames 4.
Pipe 1 made of laminated composite material consists of an inner 2 and outer 5 shells made of fiberglass, the intermediate foam layer 3 and the ribs 4. The frames 4 and the outer casing 5 made integral of the transverse beams(ring) thread 7, with longitudinal threads 8, and fastened together referred longitudinal threads 8, which on the last area of this bond is executed bends 9.
A variant of the method is that it is designed mainly for the production of the starting box of tubes for missiles with fins, where the implementation of the features of the invention are most effective. When using the invention implements a method of the cross-longitudinal-transverse winding, see the "prior art", see the guide "Composite materials" Ed. by VLA. According to the method of the winding are a bunch of threads, which is formed on the machine for winding, see patent RU No. 2236350, and lies on the mandrel rings due to the rotation of the latter with the formation of the weft threads 7. The longitudinal yarns 8 are formed by wrapping the bundle of threads 7 with special swivel. Bundle impregnated with a binder and rests on the smooth sections of the mandrel tape with the formation of oblique layers, and, due to the deformability of the cross section of the beam due to the optimum viscosity of the binder, "easily penetrates" in a fairly narrow groove 6 with the formation of intermediate frames 10 (ribs), greatly facilitating and enforcing design to improve the reliability of its operation due to the additional fastening of the frames 11 and 10 with the outer casing 5 bends 9 of the longitudinal fibers 8.
Works pipe 1 as follows. The pipe 1 is installed on the launch pad device support belt 11, which represents a reinforced frames 4, provided with connecting elements. The missile 12 with elements of plumage 13 comes when you start on guide elements 14 mounted on the intermediate 10 and 11 reinforced (base zones) frames.
Thus, the use of a group of inventions will allow you to create high-tech design of the pad to objetos pipe with high reliability of its work, and this confirms the intended use. The feasibility of inventions confirmed positive test results for samples and fragments of structures, development and manufacture of which is entirely based on the present description. In this regard, a new technical solution corresponds to the criterion "industrial applicability", i.e. the level of invention.
1. Method of making pipe from a layered composite material comprising a winding on the mandrel of the inner layer of fiberglass, the intermediate bonding the foam layer, the winding frames and the outer layer of fiberglass, characterized in that the intermediate foam layer perform the annular grooves for the placement of the frames, reel up the frames and the outer layer of a single process operation beam transverse threads, providing bundles of longitudinal threads, using, for example, the method of the cross-longitudinal-transverse winding, performing the bends of the longitudinal filaments in the transition of the beam from the winding of the outer layer to the winding frames and back filling each groove of the said beam prior to the formation of the frames.
2. Tube made of a layered composite material consisting of inner and outer shells made of fiberglass, an intermediate foam layer and frames, characterized in that the noise reduction is gouty and the outer casing is an integral part of the beam transverse threads, with longitudinal threads, and fastened together referred longitudinal threads, which on the last area of this bond is executed bends.
SUBSTANCE: guided missile transporting-launching container (TLC) comprises housing accommodating guided missile and lock to retain the latter by its tail part. TLC front half accommodates guides and pressure device. The latter represents a base with two crank-slide mechanisms arranged in inclined grooves. Slides of said mechanisms represent wedges interacting with guided missile housing, while cranks are furnished with handle and mounted on base skewed part.
EFFECT: lower vibration dynamic loads on guided missile during transportation.
4 cl, 5 dwg
SUBSTANCE: set of invention relates to weapons, particularly to designs of launching tubes and methods of their production. Launching tube 1 comprises outer shell 2 with inner erosion-proof layer 4 made from rubber-like film. Said outer shell has threaded holes 16 to receive screw plugs 7. Proposed method comprises producing threaded holes 16 in tube wall 5 and screwing screw plugs 7 in from inside. Every plug 7 is provided with recess 9 formed by thin-wall skirt with tapered edge, on the side of inner surface 8. In screwing plugs 7 adhesive 6 is forced into delamination 18 of erosion-proof 3 and sealing 4 layers on outer shell 2 caused by drilling holes 5, and skirt edge is buried into wall 5 of tube 1 by deforming outer shell 2, erosion-proof and sealing layers, thin wall and skirt edge.
EFFECT: hi-tech reliable launching tube.
6 cl, 3 dwg, 2 ex
FIELD: machine building.
SUBSTANCE: tight cover 1 of launching tube 2 consists of sectors fixed on load-carrying shell 5 of tube 2 via elastic gasket 6. Sectors 4 are made from laminar plastic material and arranged to form convex sphere-like surface 7 to be spaced apart. Elastic gasket 6 is made from rubber vulcanised together with sectors 4 fixed along inner surface 9 by gasket 6. The latter has ribs arranged in variable-size sectors 4.
EFFECT: higher reliability.
SUBSTANCE: invention refers to rocket and space equipment. Aerospace system includes carrier aircraft, carrier rocket and pay load, which are carried with the aircraft and arranged in heat-insulated transporter-launcher container and fixed in it by means of mounting elements, as well as carrier rocket booster staging system. Transporter-launcher container of carrier rocket is made in the form of two longitudinal semi-doors which are symmetrical relative to vertical plane and connected in the upper joint of longitudinal joints with hinged connection, and is provided with mechanism for opening semi-doors and for extending the rocket beyond the semi-doors of transporter-launcher container to carrier rocket start position. Inside the transporter-launcher container the semi-doors are equipped with transverse mutually joining heat-insulated partitions adjacent to carrier rocket surface and dividing inner space of transporter-launcher container into compartments for the head end and for each of the carrier rocket tanks separately. Transporter-launcher container is equipped with support system of stable thermal mode of carrier rocket content by means of control valves used on walls of compartments of transporter-launcher container for additional provision of temperature mode in compartments by controlling the intensity of bypass of thermostabilising gas to the gap between walls of tanks of carrier rocket and walls of the appropriate compartments of transporter-launcher container.
EFFECT: reducing thermal action and action of impact loads on carrier rocket.
SUBSTANCE: invention relates to rocketry, particularly to rocket launcher container or tube. Launcher tube 1 comprises load-bearing shell 3, disk 4 made from rubber tightly pressed against the face of load-bearing shell from outside and plate 5 made integral with disk 4. Circular step 6 is made in plate 5, all over its depth, to form ring 7 with said circular step. Gap 9 is provided between disk 4 and ring 7 filled by material of disk 4. Circular step of ring 7 extends beyond outer surface of launcher tube.
EFFECT: higher reliability.
FIELD: defense technology.
SUBSTANCE: transport-launcher container (TLC) comprises body (1), where launching pipes (7) are installed by means of diaphragms (5) and (6), and their length exceeds length of body (1). Between muzzle ends of launching pipes (7) and body (1) there is additional diaphragm (10) installed. Launching pipes (7) are fixed in additional diaphragm (10) by means of key joint (11). All diaphragms (5), (6) and (10) are arranged as composite from horizontal elements (12), (13) and (14), fixed to each other and to body (1) sides (3). When six launching pipes (7) are installed in TLC, they are located in two horizontal layers, and diaphragms (5), (6) and (10) consist of three horizontal elements (12), (13) and (14). Brackets (8) for coupling with transport-charging machine may be arranged on launching pipes (7) of two vertical rows.
EFFECT: simplified design, increased strength and reduced weight with preservation of possibility to replace launching pipes and to multiply use and charge container with charges in armed condition from transport-charging machine.
2 cl, 7 dwg
FIELD: weapons and ammunition.
SUBSTANCE: invention relates to weapons and can be used in designing hand grenade launcher complexes. Proposed complex comprises container hooked to fiberglass launching tube. Lockwork incorporates pulsed generator, coupling assembly, sights and belt. Aforesaid coupling assembly comprises locking mechanism and electric-contact device to transmit electric pulse from electric generator to grenade firing circuits. Locking mechanism represents shaped spring-loaded plate with two levers, that is, a hook fixed on launching tube. First of the above levers forms a gap with launching tube and features a chamfer made on its inner surface. The other lever incorporates a tooth to interact with circular groove made on container. First lever is covered, on the gap side, by spring-loaded ledge of bolt stop interacting with first lever chamfer, while inner generating surface of contact rings interacts with launching tube inner surface by its conical surface in contact with equidistant cone of container. Electric-contact device represents two eclectically-connected metal contact rings, reinforced in the area of aforesaid coupling assembly and connected by spring-loaded contacts with grenade firing circuits. Button-type circuit breaker is connected between contact rings and electric generator.
EFFECT: higher safety.
FIELD: combat equipment.
SUBSTANCE: invention relates to antitank missile complex (ATMC). ATMC comprises container with missile and connector socket arranged at container rear, if seen on the container loading side, and hooks representing two ledges with thrust flats arranged at the container front. Orientation assembly incorporates a guide representing a rigid partition with arc-like cutout and an additional rigid partition with the like arc-like cutout arranged at the launcher center. It comprises also a horizontal flat located ahead of the guides and in the guide thrust surface plane. Guide slots and connector plug have lead-in parts, while center of mass of container with missile is located between aforesaid additional container and guide slots. Distance from the connector plug lower generatrix to additional partition arc-like cutout lower generatrix exceeds that to partition arc-like cutout lower generatrix, but is smaller than that to container lower generatrix. Aforesaid partition with arc-like cutout can be located above connector plug, while distance between the hook ledges, in direction perpendicular to container loading direction, and extreme generatrixes of arc-like cutouts can equal the container diametre. Guide slot lead-in parts can represent vertical angular slopes, while those of connector plug can represent circular chamber facing the socket.
EFFECT: simpler design, lower weight.
FIELD: combat equipment.
SUBSTANCE: revolving rocket launcher comprises hollow launching tube coupled with the launcher and rocket spinning device that links rocket with launching tube. Adapter is fixed at the tube outlet cross section, along tube perimetre, while its side surfaces have lengthwise flow-pass slits arranged along adapter edges and tangentially to its surface in direction of rocket revolution. Cylindrical shell is arranged outside launching tube to move axially there along and stop flow-pass slits.
EFFECT: possibility to control powder gas efflux from slits and tangential reactive gasdynamic force.
FIELD: combat equipment.
SUBSTANCE: rocket launcher comprises open-face launching tube coupled with the carrier and open-face adapter fitted inside aforesaid tube. Adapter inner surfaces feature radial lengthwise cutouts seats inclined towards aforesaid cutouts that communicate with the former on the tube outlet side.
EFFECT: increased degree of injection stream killing.
FIELD: machine building.
SUBSTANCE: invention refers to pipe fabrication. The pressed shell containing layers of roll woven cloth with binding is made with circular layers of woven material in form of separate strips of length not less, than length of shell and width equal to perimetre of the latter with overlap.
EFFECT: increased reliability and expanded process functionality of pressed shell.
2 cl, 2 dwg
SUBSTANCE: meshed cover in the form of rotation body from composite materials includes spiral and circular ribs comprised of layers repeated throughout the cover wall thickness of the systems of crossing spiral and circular strips. Inclined strip passages between circular strips are equally offset relative to each other in circumferential and spiral directions and are made in the form of one family of congruent continuous circular zigzag-shaped spirals located along circular surfaces, which is common to circular surfaces of layers of the systems of crossing spiral and circular strips. Tops of zigzags are adjacent to circular strips of circular ribs crossing in the gap between them with spiral strips or spiral and circular strips of spiral and circular ribs correspondingly so that circular zigzag-shaped ribs are formed and mainly arranged on cover ends.
EFFECT: increasing rigidity, improving reliability and decreasing the weight of the design.
4 cl, 4 dwg
SUBSTANCE: invention is related to method for manufacturing of pipeline. Method provides for filling of space between ends of pipe composite layers by winding of fibrous material impregnated with binder, and attachment of composite layers is provided via winding of additional layers of fibrous material impregnated with binder on them and onto fibrous material with further polymerisation.
EFFECT: expansion of assembly resources and improved reliability after welding of pipe polymer layers.
SUBSTANCE: invention is related to the field of pipes from plastic masses. In method of combined pipe manufacturing, including arrangement of sealing thermoplastic layer on technological mandrel, winding of fibrous material with binder and polymerisation, sealing layer is arranged by winding of extruded thermoplastic tape onto mandrel with overlap and simultaneous heating of joint of the latter in process of winding, then layer of woven cellular fibrous material is wound with partial penetration into uncooled sealing layer, and fibrous material with binder is laid over this layer with further polymerisation.
EFFECT: improved reliability.
SUBSTANCE: invention is related to the field of pipes production from composite materials. In method for production of pipe, including installation of polymer pipe on mandrel, arrangement of primer layer on it, winding of fibrous material with binder and polymerisation, after installation of polymer pipe onto mandrel its surface layer is heated till yield state, and primer layer is arranged on it by means of woven cellular material winding on it, and then fibrous material is wound with binder and polymerised.
EFFECT: improved reliability.
FIELD: aircraft engineering.
SUBSTANCE: proposed air duct can feed air in the temperature range of minus 55°C to plus 85°C and at load with pressure difference relative to aircraft cabin inside pressure not exceeding ±500 GPa. Air duct outer or inner side is furnished with multi-layer reinforcing coat. Every layer has a number of coils formed by at least one continuous fiber. Coils of layers arranged one above another are wound in opposite directions to form the coat cellular structure. Air duct is made from foamed or dense plastic material. Aforesaid continuous fibers are enclosed by matrix made from either thermosetting plastic or thermoplastic polymer. Distance between said coils or angle of inclination between them and air duct lengthwise axis varies along said axis to change coils density along air duct lengthwise axis depending upon local requirements to air duct mechanical strain.
EFFECT: air duct reduced weight and increased strength.
12 cl, 8 dwg
FIELD: construction industry.
SUBSTANCE: method involves overlapped winding of annular woven fabric layers on elastic mandrel in the form of straps with length not less than length of cover and width equal to perimetre of the latter; each annular layer is fixed with spiral winding of textile fibre, and after all layers are wound and fixed, woven fabric is stitched with zigzag seam of thread made from fibrous material, woven fabric is soaked with bonding agent, drying, installation in split die, heating of assembly and polymerisation, and after it is completed, assembly is cooled, cover with mandrel is removed from die and taken from mandrel.
EFFECT: enlarging manufacturing capabilities and improving reliability.
FIELD: machine building.
SUBSTANCE: invention can be used for creation of pipeline in different fields of engineering, for instance in construction, communal services and in metal mining industry at transportation of polluted waste water, loose products, pulps, mountain mass and other liquids, containing solid phase. Pipe is implemented of multilayer composite - fibrous material. It is formed in the form of alternating mono-layers with transversal and longitudinal folding of reinforcing material, impregnated by binding. In structure of pipe material it is provided protective inner layer, which allows reduced content of binding and particularly is impregnated by longitudinal fibers as compared with other layers of pipe. Mono-layers of protective layer are oriented in longitudinal section of pipe by direction to its axis under acute angle to direction of flow of relocatable bodies.
EFFECT: there is increased durability of pipe ensured by increasing of hydroabrasive durability.
6 cl, 3 dwg
FIELD: machine building.
SUBSTANCE: polymeric pipe, wall of which allows external layer, internal layer at least one intermediate layer, herewith nearby layers are connected to each other, and, at least, one layer, excluding inner layer, is implemented in the capacity of functional layer, which a) contains thermoreactive polymer, which in comparison with thermoreactive polymer, at least of one, following by radius inside layer differs, at least, by one physical character: coefficient of elasticity is less, percentage elongation against rupture is more, softening temperature is less, and/or b) contains at least one additive, which in case of application of impact energy on external layer is irreversibly deformed.
EFFECT: shock strength increasing of pipes.
22 cl, 4 dwg
FIELD: technological processes.
SUBSTANCE: invention is related to the field of pipes manufacturing. In method for increase of leak-tight properties of pipes (vessels), made of composite materials, including winding of continuous thread, number of helical passes with positive winding angles is not equal to number of helical passes with negative winding angles.
EFFECT: higher leak-tightness of pipes due to reduction of breaking stresses in the first layer.
FIELD: machine building.
SUBSTANCE: invention relates to fabrication method of laminates by winding and can be used for manufacturing of friction bearing. Method includes application of polymer compound on inner parallel portion and flange in the form of coating by means of filling of clearance between flange and pattern by winding by layers of impregnated by polymer compound bunch with following moulding and solidification of polymer compound, removing of pattern and mechanical operation of coating. Before winding of bunch friction bearing and pattern are installed by sliding fit on one axis with formation of clearance between flange and pattern. Following winding of bunch is implemented directly on this axis, which after solidification of polymer compound is removed. In the capacity of axis it is used screw. Additionally moulding of polymer compound and bunch is implemented by bolt head by means of tightening of screw, which is located on opposite end of friction bearing.
EFFECT: increasing of durability of friction bearing ensured by improving of coating at moulding, increasing of uniformity by thickness of coating, absence of delamination; durability increasing and shock strength of friction bearing.
2 cl, 1 dwg