CN103682562B - A kind of composite material pedestal and preparation method thereof - Google Patents
A kind of composite material pedestal and preparation method thereof Download PDFInfo
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- CN103682562B CN103682562B CN201310695828.9A CN201310695828A CN103682562B CN 103682562 B CN103682562 B CN 103682562B CN 201310695828 A CN201310695828 A CN 201310695828A CN 103682562 B CN103682562 B CN 103682562B
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Abstract
The invention discloses a kind of composite material pedestal, comprise upper end cover and bottom end cover, described upper end cover comprises annular upper end cover body and is arranged at the first up-small and down-big cone below upper end cover body, described bottom end cover comprises bottom end cover body and is arranged at the second up big and down small cone above bottom end cover body, cylindrical shell is provided with between described upper end cover and bottom end cover, the upper inside wall of described cylindrical shell and the outer wall of the first cone closely cooperate, the lower inner wall of described cylindrical shell and the outer wall of the second cone closely cooperate, below described upper end cover and the arranged outside being positioned at cylindrical shell has reinforcement, described upper end cover, cylindrical shell, the material of reinforcement and bottom end cover is composite material.In addition, the invention also discloses the preparation method of this composite material pedestal.The each position of composite material pedestal of the present invention all adopts composite material to make, and has that axial rigidity is high, an advantage such as Heat stability is good, passive quality is few, the degree of modularity is high, good reliability, excellent combination property under the high and low temperature environment of space.
Description
Technical field
The invention belongs to technical field of composite materials, be specifically related to a kind of composite material pedestal and preparation method thereof.
Background technology
Satellite antenna loaded cylinder base is the important installation carrier for satellite antenna positioning.Therefore, the large overload that base need bear satellite launch, complicated mechanical environment that is motor-driven, that become the stages such as rail causes; Under the high and low temperature environment in space, also must have excellent dimensional stability, guarantee the normal work of antenna.
The loaded cylinder base of existing satellite antenna is all generally with metal material preparation, not only increases passive quality, and have that axial rigidity is low, the shortcoming such as poor heat stability under the high and low temperature environment of space; Cause the functional reliability of satellite antenna low.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned the deficiencies in the prior art, provides a kind of composite material pedestal.This each position of composite material pedestal all adopts composite material to make, and has that axial rigidity is high, an advantage such as Heat stability is good, passive quality is few, the degree of modularity is high, good reliability, excellent combination property under the high and low temperature environment of space.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of composite material pedestal, it is characterized in that, comprise upper end cover and bottom end cover, described upper end cover comprises annular upper end cover body and is arranged at the first up-small and down-big cone below upper end cover body, described bottom end cover comprises bottom end cover body and is arranged at the second up big and down small cone above bottom end cover body, described upper end cover body and the first cone are integral type structure, described bottom end cover body and the second cone are integral type structure, cylindrical shell is provided with between described upper end cover and bottom end cover, the upper inside wall of described cylindrical shell and the outer wall of the first cone closely cooperate, the lower inner wall of described cylindrical shell and the outer wall of the second cone closely cooperate, below described upper end cover and the arranged outside being positioned at cylindrical shell has reinforcement, described upper end cover, cylindrical shell, the material of reinforcement and bottom end cover is composite material.
Above-mentioned a kind of composite material pedestal, described first cone is hollow structure.
Above-mentioned a kind of composite material pedestal, the lower surface of described upper end cover body and the outer wall of cylindrical shell all offer the location notch matched with reinforcement.
Above-mentioned a kind of composite material pedestal, the conical surface of the described conical surface of the first cone and the angle of vertical direction and the second cone and the angle of vertical direction are all not more than 10 degree.
Above-mentioned a kind of composite material pedestal, the quantity of described reinforcement is multiple, and multiple reinforcement is distributed in below upper end cover.
In addition, present invention also offers a kind of method preparing above-mentioned composite material pedestal, it is characterized in that, the method comprises the following steps:
Step one, making molding die, adopt die press technology for forming to make upper end cover blank, bottom end cover blank and reinforcement respectively;
On step 2, upper end cover blank described in step one, machine work first cone obtains upper end cover, and on bottom end cover blank described in step one, machine work second cone obtains bottom end cover;
Step 3, make solubility core according to the shape and size at cylindrical shell position between the first cone and the second cone, then upper end cover described in solubility core and step 2 and bottom end cover are assembled together;
Lay fiber cloth between step 4, the upper end cover body of upper end cover in step 3 after assembling and the bottom end cover body of bottom end cover, then adopt wet-winding craft to be wound around fiber in the fiber cloth of laying;
Step 5, repetition step 4, to desired thickness, obtain to be formed, are then placed in curing oven by be formed, be cured shaping under vacuum, remove solubility core, obtain molded part after coming out of the stove;
Step 6, reinforcement described in step one is adhered on molded part described in step 5, obtains composite material pedestal.
Above-mentioned method, molding die described in step one is fiber reinforced plastic mold or metal die.
Above-mentioned method, the core of solubility described in step 3 is core mould, gypsum core or ceramic powder core.
Above-mentioned method, fiber cloth described in step 4 is one or more in nonwoven fabrics, unidirectional cloth, plain, twill and satin.
Above-mentioned method, fiber described in step 4 is one or more in glass fibre, carbon fiber and aramid fiber.
The present invention compared with prior art has the following advantages:
1, each position of composite material pedestal of the present invention all adopts composite material to make, and has that axial rigidity is high, an advantage such as Heat stability is good, passive quality is few, the degree of modularity is high, good reliability, excellent combination property under the high and low temperature environment of space.
2, the present invention by arranging the first up-small and down-big cone on the upper end cover of lower bottom base, bottom end cover arranges the second up big and down small cone, by with close-fitting first cylindrical shell of the first cone and the second cone by upper end cover, the first cylindrical shell together with bottom end cover secure fit, ensure that the fastness of composite material pedestal; Reinforcement is set by the below at upper end cover, ensure that pedestal can carry larger pressure.
3, preparation method of the present invention is simple, by difference machine work first cone and the second cone on the upper end cover and bottom end cover of compression molding, then between upper end cover body and bottom end cover body, alternately lay fiber cloth and be wound around fiber and carry out the shaping of cylindrical shell, special construction due to the first cone and the second cone can ensure the fiber of fiber cloth and the winding of laying and upper end cover and bottom end cover secure fit, not easily slippage, thus the fastness that ensure that pedestal entirety.
4, composite material pedestal applied range of the present invention, can be used for satellite antenna loaded cylinder base, satellite launch can not only be born, large overload that complicated mechanical environment that is motor-driven, that become the stage such as rail causes, and under the high and low temperature environment in space, there is excellent dimensional stability, the normal work of antenna can be guaranteed.
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the perspective view of composite material pedestal of the present invention.
Fig. 2 is the vertical view of composite material pedestal of the present invention.
Fig. 3 is the A-A cutaway view of Fig. 2.
Description of reference numerals:
1-upper end cover; 1-1-upper end cover body; 1-2-the first cone;
2-cylindrical shell; 3-reinforcement; 4-bottom end cover;
4-1-bottom end cover body; 4-2-the second cone.
Embodiment
Embodiment 1
As Fig. 1, shown in Fig. 2 and Fig. 3, the composite material pedestal of the present embodiment, comprise upper end cover 1 and bottom end cover 4, described upper end cover 1 comprises annular upper end cover body 1-1 and is arranged at the first up-small and down-big cone 1-2 below upper end cover body 1-1, described bottom end cover comprises bottom end cover body 4-1 and is arranged at the second up big and down small cone 4-2 above bottom end cover body, described upper end cover body 1-1 and the first cone 1-2 is integral type structure, described bottom end cover body 4-1 and the second cone 4-2 is integral type structure, cylindrical shell 2 is provided with between described upper end cover 1 and bottom end cover 4, the upper inside wall of described cylindrical shell 2 and the outer wall of the first cone 1-2 closely cooperate, the lower inner wall of described cylindrical shell 2 and the outer wall of the second cone 4-2 closely cooperate, below described upper end cover 1 and the arranged outside being positioned at cylindrical shell 2 has reinforcement 3, described upper end cover 1, cylindrical shell 2, the material of reinforcement 3 and bottom end cover 4 is composite material.
In the present embodiment, described first cone 1-2 is hollow structure.
In the present embodiment, the described lower surface of upper end cover body 1-1 and the outer wall of cylindrical shell 2 all offer the location notch matched with reinforcement 3.
In the present embodiment, the described conical surface of the first cone 1-2 and the conical surface of the angle of vertical direction and the second cone 4-2 and the angle of vertical direction are 1 degree.
In the present embodiment, the quantity of described reinforcement 3 is 20, and 20 reinforcements 3 are distributed in below upper end cover 1.
The present embodiment requires the pedestal being prepared as follows size: the external diameter of upper end cover body 1-1 is 500mm, internal diameter is 350mm, the external diameter of the first cone 1-2 lower surface is 450mm, and internal diameter is 410mm, and upper end cover 1 whole height is 15mm, the external diameter of bottom end cover body 4-1 is 480mm, the external diameter of the second cone 4-2 upper surface is 380mm, and bottom end cover 4 whole height is 10mm, and the thickness of cylindrical shell 2 is 30mm, the thickness of reinforcement 3 is 3mm, and the total height of pedestal is 155mm.
Preparation method is:
Step one, making molding die, with M40J plain weave charcoal cloth for raw material, adopt die press technology for forming to make upper end cover blank, bottom end cover blank and reinforcement 3 respectively; Described molding die is aluminum alloy mould;
On step 2, upper end cover blank described in step one, machine work first cone 1-2 obtains upper end cover 1, and on bottom end cover blank described in step one, machine work second cone 4-2 obtains bottom end cover 4;
Step 3, make solubility core according to the shape and size at cylindrical shell 2 position between the first cone 1-2 and the second cone 4-2, then upper end cover 1 described in solubility core and step 2 and bottom end cover 4 are assembled together; Described solubility core is solubility core mould;
Step 4, between the upper end cover body 1-1 of the upper end cover 1 in step 3 after assembling and the bottom end cover body 4-1 of bottom end cover 4, ZEF-001 epoxy resin is brushed (namely at the first cone 1-2 outer wall in position, second cone 4-2 outer wall and solubility core outer wall all brush ZEF-001 epoxy resin (Hubei precious posivtive spike new material Co., Ltd)), lay 2 layers of plain and (adopt the braiding of M40J high-modules carbon fibre, through broadwise ratio 1:2, broadwise along product axially), then adopt wet-winding craft on the plain laid, be wound around 1 layer of M40J high-modules carbon fibre (ZEF-001 is epoxy resin impregnated in employing),
Step 5, repetition step 4 are to cylindrical shell 2 desired thickness (30mm), obtain to be formed, then curing oven is placed in by be formed, be cured shaping under vacuum, the system of curing molding is: room temperature → 90 DEG C/2h → 130 DEG C/2h → 160 DEG C/6h → Temperature fall is to room temperature, remove solubility core after coming out of the stove, obtain molded part;
Step 6, to be positioned on the lower surface of upper end cover body 1-1 and the outer wall of cylindrical shell 2 at molded part described in step 5 and all to offer the location notch matched with reinforcement 3 described in step one, then in location notch, CJ-91 adhesive is coated with, by reinforcement 3 positioning bonding on location notch, 4h is solidified at 80 DEG C, reinforcement 3 strong bond, on the lower surface of upper end cover body 1-1 and the outer wall of cylindrical shell 2, obtains composite material pedestal.
The composite material pedestal of the present embodiment has that axial rigidity is high, the advantage such as Heat stability is good, passive quality is few, the degree of modularity is high, good reliability, excellent combination property under the high and low temperature environment of space, axial modulus >=100GPa, glass transition temperature 210 DEG C ~ 220 DEG C, quality is loss of weight 40% compared with alloy product.
Embodiment 2
As shown in Figure 1, Figure 2 and Figure 3, the structure of the composite material pedestal of the present embodiment is identical with embodiment 1, and wherein difference is: the described conical surface of the first cone 1-2 and the conical surface of the angle of vertical direction and the second cone 4-2 and the angle of vertical direction are 2 degree; The quantity of described reinforcement 3 is 16.
The present embodiment requires the pedestal being prepared as follows size: the external diameter of upper end cover body 1-1 is 300mm, internal diameter is 200mm, the external diameter of the first cone 1-2 lower surface is 250mm, and internal diameter is 220mm, and upper end cover 1 whole height is 15mm, the external diameter of bottom end cover body 4-1 is 280mm, the external diameter of the second cone 4-2 upper surface is 240mm, and bottom end cover 4 whole height is 10mm, and the thickness of cylindrical shell 2 is 5mm, the thickness of reinforcement 3 is 2mm, and the total height of pedestal is 100mm.
The preparation method of the composite material pedestal of the present embodiment is:
Step one, making molding die, with M40JB plain weave charcoal cloth for raw material, adopt die press technology for forming to make upper end cover blank, bottom end cover blank and reinforcement 3 respectively; Described molding die is steel mold;
On step 2, upper end cover blank described in step one, machine work first cone 1-2 obtains upper end cover 1, and on bottom end cover blank described in step one, machine work second cone 4-2 obtains bottom end cover 4;
Step 3, make solubility core according to the shape and size at cylindrical shell 2 position between the first cone 1-2 and the second cone 4-2, then upper end cover 1 described in solubility core and step 2 and bottom end cover 4 are assembled together; Described solubility core is solubility core mould;
Step 4, between the upper end cover body 1-1 of the upper end cover 1 in step 3 after assembling and the bottom end cover body 4-1 of bottom end cover 4, ZEF-002 epoxy resin is brushed (namely at the first reverse taper 1-2 outer wall in position, second reverse taper 4-2 outer wall and solubility core outer wall all brush ZEF-002 epoxy resin (Hubei precious posivtive spike new material Co., Ltd)), lay 1 layer of plain and (adopt high-strength 2 flint glass F fibrages, through broadwise ratio 1:2, broadwise along product axially), then adopt wet-winding craft on the plain laid, be wound around 1 layer of glass fibre (ZEF-002 is epoxy resin impregnated in employing),
Step 5, repetition step 4 are to cylindrical shell 2 desired thickness (5mm), obtain to be formed, then curing oven is placed in by be formed, be cured shaping under vacuum, the system of curing molding is: room temperature → 90 DEG C/2h → 130 DEG C/2h → 160 DEG C/6h → Temperature fall is to room temperature, remove solubility core after coming out of the stove, obtain molded part;
Step 6, to be positioned on the lower surface of upper end cover body 1-1 and the outer wall of cylindrical shell 2 at molded part described in step 5 and all to offer the location notch matched with reinforcement 3 described in step one, then in location notch, CJ-91 adhesive is coated with, by reinforcement 3 positioning bonding on location notch, 4h is solidified at 80 DEG C, reinforcement 3 strong bond, on the lower surface of upper end cover body 1-1 and the outer wall of cylindrical shell 2, obtains composite material pedestal.
The composite material pedestal of the present embodiment has that axial rigidity is high, the advantage such as Heat stability is good, passive quality is few, the degree of modularity is high, good reliability, excellent combination property under the high and low temperature environment of space, axial modulus >=25GPa, glass transition temperature 235 DEG C ~ 250 DEG C, quality is loss of weight 25% compared with alloy product.
Embodiment 3
As shown in Figure 1, Figure 2 and Figure 3, the structure of the composite material pedestal of the present embodiment is identical with embodiment 1, and wherein difference is: the described conical surface of the first cone 1-2 and the conical surface of the angle of vertical direction and the second cone 4-2 and the angle of vertical direction are 10 degree; The quantity of described reinforcement 3 is 10.
The present embodiment requires the pedestal being prepared as follows size: the external diameter of upper end cover body 1-1 is 400mm, internal diameter is 300mm, the external diameter of the first cone 1-2 lower surface is 350mm, and internal diameter is 320mm, and upper end cover 1 whole height is 20mm, the external diameter of bottom end cover body 4-1 is 380mm, the external diameter of the second cone 4-2 upper surface is 340mm, and bottom end cover 4 whole height is 15mm, and the thickness of cylindrical shell 2 is 10mm, the thickness of reinforcement 3 is 5mm, and the total height of pedestal is 155mm.
The preparation method of the composite material pedestal of the present embodiment is:
Step one, making molding die, with M40J plain weave charcoal cloth for raw material, adopt die press technology for forming to make upper end cover blank, bottom end cover blank and reinforcement 3 respectively; Described molding die is steel mold;
On step 2, upper end cover blank described in step one, machine work first cone 1-2 obtains upper end cover 1, and on bottom end cover blank described in step one, machine work second cone 4-2 obtains bottom end cover 4;
Step 3, make solubility core according to the shape and size at cylindrical shell 2 position between the first cone 1-2 and the second cone 4-2, then upper end cover 1 described in solubility core and step 2 and bottom end cover 4 are assembled together; Described solubility core is soluble ceramic powder core;
Step 4, between the upper end cover body 1-1 of the upper end cover 1 in step 3 after assembling and the bottom end cover body 4-1 of bottom end cover 4, LD-2001A/B resin is brushed (namely at the first reverse taper 1-2 outer wall in position, second reverse taper 4-2 outer wall and solubility core outer wall all brush LD-2001A/B resin (Shijiazhuang Li Ding Electron Material Co., Ltd), lay 1 layer of nonwoven fabrics successively, 1 floor twill and 1 floor satin (adopt No. 3 fibrages of domestic aramid fiber, through broadwise ratio 1:2, broadwise along product axially), then adopt wet-winding craft on the satin laid, be wound around 1 layer of aramid fiber (adopting LD-2001A/B resin-dipping) and 1 layer of carbon fiber (adopting LD-2001A/B resin-dipping),
Step 5, repetition step 4 are to cylindrical shell 2 desired thickness (10mm), obtain to be formed, then curing oven is placed in by be formed, be cured shaping under vacuum, the system of curing molding is: room temperature → 75 DEG C/2.5h → 90 DEG C/1h → 110 DEG C/2.5h → Temperature fall is to room temperature, remove solubility core after coming out of the stove, obtain molded part;
Step 6, to be positioned on the lower surface of upper end cover body 1-1 and the outer wall of cylindrical shell 2 at molded part described in step 5 and all to offer the location notch matched with reinforcement 3 described in step one, then in location notch, J133 adhesive is coated with, by reinforcement 3 positioning bonding on location notch, 2h is solidified at 80 DEG C, reinforcement 3 strong bond, on the lower surface of upper end cover body 1-1 and the outer wall of cylindrical shell 2, obtains composite material pedestal.
The composite material pedestal of the present embodiment has that axial rigidity is high, the advantage such as Heat stability is good, passive quality is few, the degree of modularity is high, good reliability, excellent combination property under the high and low temperature environment of space, axial modulus >=60GPa, glass transition temperature 110 DEG C ~ 120 DEG C, quality is loss of weight 40% compared with alloy product.
Embodiment 4
As shown in Figure 1, Figure 2 and Figure 3, the structure of the composite material pedestal of the present embodiment is identical with embodiment 1, and wherein difference is: the described conical surface of the first cone 1-2 and the conical surface of the angle of vertical direction and the second cone 4-2 and the angle of vertical direction are 5 degree; The quantity of described reinforcement 3 is 5.
The present embodiment requires the pedestal being prepared as follows size: the external diameter of upper end cover body 1-1 is 500mm, internal diameter is 350mm, the external diameter of the first cone 1-2 lower surface is 450mm, and internal diameter is 410mm, and upper end cover 1 whole height is 18mm, the external diameter of bottom end cover body 4-1 is 480mm, the external diameter of the second cone 4-2 upper surface is 380mm, and bottom end cover 4 whole height is 12mm, and the thickness of cylindrical shell 2 is 50mm, the thickness of reinforcement 3 is 10mm, and the total height of pedestal is 160mm.
The preparation method of the composite material pedestal of the present embodiment is:
Step one, making molding die, with M40JB plain weave charcoal cloth for raw material, adopt die press technology for forming to make upper end cover blank, bottom end cover blank and reinforcement 3 respectively; Described molding die is fiber reinforced plastic mold;
On step 2, upper end cover blank described in step one, machine work first cone 1-2 obtains upper end cover 1, and on bottom end cover blank described in step one, machine work second cone 4-2 obtains bottom end cover 4;
Step 3, make solubility core according to the shape and size at cylindrical shell 2 position between the first cone 1-2 and the second cone 4-2, then upper end cover 1 described in solubility core and step 2 and bottom end cover 4 are assembled together; Described solubility core is soluble plasters core;
Step 4, between the upper end cover body 1-1 of the upper end cover 1 in step 3 after assembling and the bottom end cover body 4-1 of bottom end cover 4, LD-2001A/B resin is brushed (namely at the first reverse taper 1-2 outer wall in position, second reverse taper 4-2 outer wall and solubility core outer wall all brush LD-2001A/B resin (Shijiazhuang Li Ding Electron Material Co., Ltd)), lay 1 layer of unidirectional cloth and 1 layer of plain (employing alkali-free glass fibre braiding successively, through broadwise ratio 1:2, broadwise along product axially), then adopt wet-winding craft on the plain laid, be wound around 1 layer of glass fibre (adopting LD-2001A/B resin-dipping) and 1 layer of carbon fiber (adopting LD-2001A/B resin-dipping) successively,
Step 5, repetition step 4 are to cylindrical shell 2 desired thickness (50mm), obtain to be formed, then curing oven is placed in by be formed, be cured shaping under vacuum, the system of curing molding is: room temperature → 75 DEG C/2.5h → 90 DEG C/1h → 110 DEG C/2.5h → Temperature fall is to room temperature, remove solubility core after coming out of the stove, obtain molded part;
Step 6, to be positioned on the lower surface of upper end cover body 1-1 and the outer wall of cylindrical shell 2 at molded part described in step 5 and all to offer the location notch matched with reinforcement 3 described in step one, then in location notch, CJ-91 adhesive is coated with, by reinforcement 3 positioning bonding on location notch, 4h is solidified at 80 DEG C, reinforcement 3 strong bond, on the lower surface of upper end cover body 1-1 and the outer wall of cylindrical shell 2, obtains composite material pedestal.
The composite material pedestal of the present embodiment has that axial rigidity is high, the advantage such as Heat stability is good, passive quality is few, the degree of modularity is high, good reliability, excellent combination property under the high and low temperature environment of space, axial modulus >=28GPa, glass transition temperature 110 DEG C ~ 120 DEG C, quality is loss of weight 25% compared with alloy product.
Embodiment 5
As shown in Figure 1, Figure 2 and Figure 3, the structure of the composite material pedestal of the present embodiment is identical with embodiment 1, and wherein difference is: the described conical surface of the first cone 1-2 and the conical surface of the angle of vertical direction and the second cone 4-2 and the angle of vertical direction are 2 degree; The quantity of described reinforcement 3 is 15.
The present embodiment requires the pedestal being prepared as follows size: the external diameter of upper end cover body 1-1 is 500mm, internal diameter is 350mm, the external diameter of the first cone 1-2 lower surface is 450mm, and internal diameter is 410mm, and upper end cover 1 whole height is 20mm, the external diameter of bottom end cover body 4-1 is 480mm, the external diameter of the second cone 4-2 upper surface is 380mm, and bottom end cover 4 whole height is 20mm, and the thickness of cylindrical shell 2 is 20mm, the thickness of reinforcement 3 is 5mm, and the total height of pedestal is 200mm.
The preparation method of the composite material pedestal of the present embodiment is:
Step one, making molding die, with M40J plain weave charcoal cloth for raw material, adopt die press technology for forming to make upper end cover blank, bottom end cover blank and reinforcement 3 respectively; Described molding die is titanium alloy mould;
On step 2, upper end cover blank described in step one, machine work first cone 1-2 obtains upper end cover 1, and on bottom end cover blank described in step one, machine work second cone 4-2 obtains bottom end cover 4;
Step 3, make solubility core according to the shape and size at cylindrical shell 2 position between the first cone 1-2 and the second cone 4-2, then upper end cover 1 described in solubility core and step 2 and bottom end cover 4 are assembled together; Described solubility core is soluble plasters core;
Step 4, between the upper end cover body 1-1 of the upper end cover 1 in step 3 after assembling and the bottom end cover body 4-1 of bottom end cover 4, MF-3205/ZH-110 epoxy resin is brushed (namely at the first reverse taper 1-2 outer wall in position, second reverse taper 4-2 outer wall and solubility core outer wall all brush MF-3205/ZH-110 epoxy resin (Hubei precious posivtive spike new material Co., Ltd)), lay 2 layers of plain and (adopt M40J fibrage, through broadwise ratio 1:2, broadwise along product axially), then adopt wet-winding craft on the plain laid, be wound around 1 layer of glass fibre (MF-3205/ZH-110 is epoxy resin impregnated in employing) successively, 1 layer of aramid fiber (MF-3205/ZH-110 is epoxy resin impregnated in employing) and 1 layer of carbon fiber (MF-3205/ZH-110 is epoxy resin impregnated in employing),
Step 5, repetition step 4 are to cylindrical shell 2 desired thickness (20mm), obtain to be formed, then curing oven is placed in by be formed, be cured shaping under vacuum, the system of curing molding is: room temperature → 100 DEG C/1h → 120 DEG C/2h → 160 DEG C/2h → Temperature fall is to room temperature, remove solubility core after coming out of the stove, obtain molded part;
Step 6, to be positioned on the lower surface of upper end cover body 1-1 and the outer wall of cylindrical shell 2 at molded part described in step 5 and all to offer the location notch matched with reinforcement 3 described in step one, then in location notch, J133 adhesive is coated with, by reinforcement 3 positioning bonding on location notch, 2h is solidified at 80 DEG C, reinforcement 3 strong bond, on the lower surface of upper end cover body 1-1 and the outer wall of cylindrical shell 2, obtains composite material pedestal.
The composite material pedestal of the present embodiment has that axial rigidity is high, the advantage such as Heat stability is good, passive quality is few, the degree of modularity is high, good reliability, excellent combination property under the high and low temperature environment of space, axial modulus >=80GPa, glass transition temperature 120 DEG C ~ 130 DEG C, quality is loss of weight 35% compared with alloy product.
The above; it is only preferred embodiment of the present invention; not any restriction is done to the present invention, every above embodiment is done according to invention technical spirit any simple modification, change and equivalent structure change, all still belong in the protection range of technical solution of the present invention.
Claims (8)
1. a composite material pedestal, it is characterized in that, comprise upper end cover (1) and bottom end cover (4), described upper end cover (1) comprises annular upper end cover body (1-1) and is arranged at up-small and down-big first cone (1-2) of upper end cover body (1-1) below, described bottom end cover comprises bottom end cover body (4-1) and is arranged at up big and down small the second cone (4-2) above bottom end cover body, described upper end cover body (1-1) and the first cone (1-2) are integral type structure, described bottom end cover body (4-1) and the second cone (4-2) are integral type structure, cylindrical shell (2) is provided with between described upper end cover (1) and bottom end cover (4), the upper inside wall of described cylindrical shell (2) and the outer wall of the first cone (1-2) closely cooperate, the lower inner wall of described cylindrical shell (2) and the outer wall of the second cone (4-2) closely cooperate, described upper end cover (1) below and the arranged outside being positioned at cylindrical shell (2) has reinforcement (3), described upper end cover (1), cylindrical shell (2), the material of reinforcement (3) and bottom end cover (4) is composite material, the described conical surface of the first cone (1-2) and the conical surface of the angle of vertical direction and the second cone (4-2) and the angle of vertical direction are all not more than 10 degree, the quantity of described reinforcement (3) is multiple, and multiple reinforcement (3) is distributed in upper end cover (1) below.
2. a kind of composite material pedestal according to claim 1, is characterized in that, described first cone (1-2) is hollow structure.
3. a kind of composite material pedestal according to claim 1, is characterized in that, the lower surface of described upper end cover body (1-1) and the outer wall of cylindrical shell (2) all offer the location notch matched with reinforcement (3).
4. prepare a method for composite material pedestal as described in claim arbitrary in claims 1 to 3, it is characterized in that, the method comprises the following steps:
Step one, making molding die, adopt die press technology for forming to make upper end cover blank, bottom end cover blank and reinforcement (3) respectively;
On step 2, upper end cover blank described in step one, machine work first cone (1-2) obtains upper end cover (1), and on bottom end cover blank described in step one, machine work second cone (4-2) obtains bottom end cover (4);
Step 3, the shape and size being positioned at position between the first cone (1-2) and the second cone (4-2) according to cylindrical shell (2) make solubility core, then upper end cover described in solubility core and step 2 (1) and bottom end cover (4) are assembled together;
Step 4, upper end cover (1) in step 3 after assembling lay fiber cloth between upper end cover body (1-1) and the bottom end cover body (4-1) of bottom end cover (4), then adopt wet-winding craft to be wound around fiber in the fiber cloth of laying;
Step 5, repetition step 4, to cylindrical shell (2) desired thickness, obtain to be formed, are then placed in curing oven by be formed, be cured shaping under vacuum, remove solubility core, obtain molded part after coming out of the stove;
Step 6, reinforcement described in step one (3) is adhered to molded part described in step 5 is positioned on the lower surface of upper end cover body (1-1) and the outer wall of cylindrical shell (2), obtain composite material pedestal.
5. method according to claim 4, is characterized in that, molding die described in step one is fiber reinforced plastic mold or metal die.
6. method according to claim 4, is characterized in that, the core of solubility described in step 3 is core mould, gypsum core or ceramic powder core.
7. method according to claim 4, is characterized in that, fiber cloth described in step 4 is one or more in nonwoven fabrics, unidirectional cloth, plain, twill and satin.
8. method according to claim 4, is characterized in that, fiber described in step 4 is one or more in glass fibre, carbon fiber and aramid fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310695828.9A CN103682562B (en) | 2013-12-17 | 2013-12-17 | A kind of composite material pedestal and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310695828.9A CN103682562B (en) | 2013-12-17 | 2013-12-17 | A kind of composite material pedestal and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN103682562A CN103682562A (en) | 2014-03-26 |
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| CN103913735A (en) * | 2014-04-09 | 2014-07-09 | 中国电子科技集团公司第十一研究所 | Satellite-borne corner reflector fixing structure |
| CN105239315B (en) * | 2014-06-30 | 2019-01-22 | 青岛海尔洗衣机有限公司 | A kind of split type speed-reducing clutch shell |
| CN104315069A (en) * | 2014-11-07 | 2015-01-28 | 偃师市华宝龙动力机械有限公司 | Bottom cylinder of motor vehicle damping device |
| CN108890230B (en) * | 2018-07-19 | 2019-10-01 | 湖南南方通用航空发动机有限公司 | A kind of loaded cylinder and its processing technology |
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| CN1564377A (en) * | 2004-03-17 | 2005-01-12 | 何根生 | Double cone tower small transmitting antenna |
| CN201513688U (en) * | 2009-09-22 | 2010-06-23 | 珠海端末金属制品有限公司 | Base for perpendicularly mounting pillar |
| US7982680B1 (en) * | 2009-06-30 | 2011-07-19 | Bae Systems Information And Electronic Systems Integration Inc. | Antennas providing near-spherical coverage with right-hand circular polarization for differential GPS use |
| CN202030197U (en) * | 2011-04-20 | 2011-11-09 | 中国十七冶集团有限公司 | Balance supporting device for transport of wind driven generator impellers |
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| CN1564377A (en) * | 2004-03-17 | 2005-01-12 | 何根生 | Double cone tower small transmitting antenna |
| US7982680B1 (en) * | 2009-06-30 | 2011-07-19 | Bae Systems Information And Electronic Systems Integration Inc. | Antennas providing near-spherical coverage with right-hand circular polarization for differential GPS use |
| CN201513688U (en) * | 2009-09-22 | 2010-06-23 | 珠海端末金属制品有限公司 | Base for perpendicularly mounting pillar |
| CN202030197U (en) * | 2011-04-20 | 2011-11-09 | 中国十七冶集团有限公司 | Balance supporting device for transport of wind driven generator impellers |
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