CN102152555A - Annular preform for manufacturing carbon/carbon composite material brake disc and knitting process method thereof - Google Patents
Annular preform for manufacturing carbon/carbon composite material brake disc and knitting process method thereof Download PDFInfo
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- CN102152555A CN102152555A CN2010105293161A CN201010529316A CN102152555A CN 102152555 A CN102152555 A CN 102152555A CN 2010105293161 A CN2010105293161 A CN 2010105293161A CN 201010529316 A CN201010529316 A CN 201010529316A CN 102152555 A CN102152555 A CN 102152555A
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Abstract
The invention relates to an annular preform for manufacturing a carbon/carbon composite material brake disc and a knitting process method thereof. The current used preform is manufactured through an orthogonal knitting process, wherein long fibers among layers are vertically arranged to form a square; and the square is cut into a ring. The utilization rate of a material is low. The invention aims to provide the annular preform for manufacturing the carbon/carbon composite material brake disc and the knitting process method thereof. The method comprises the following steps of: rotating all element layers at the angle of 10 to 85 DEG layer by layer in sequence; compositely superposing and laying the element layers up and down; vertically needling repeatedly; and then pressing to form the annular preform with the density of 0.5 to 0.58 g/cm<2>, the inner diameter of 200 to 300mm, the outer diameter of 500 to 600mm and the height of 30 to 36mm. The invention has the advantages that: the utilization rate of a raw material and the quality of a processed product are increased, nonorthogonal arrangement of the long fibers is adopted so as to realize the consistency of all mechanical properties, and the service life and the combination property of the carbon brake disc are improved.
Description
One, technical field
The present invention relates on the aircraft with making carbon/carbon compound material brake disc annular precast body and weaving method thereof.
Two, background technology
Present used precast body is the quadrature weaving, every interlayer long fibre capwise, and the back that is shaped is a square, is cut into the garden annular again.The precast body stock utilization that this basketry is produced is low
Employed precast body is the long fibre pre-oxygen silk screen tire (also claiming the carbon carpet veneer) that just accompanying each other in the manufacturing of carbon/carbon compound material airplane carbon brake disc, overlapping acupuncture squarely part, be used for the carbon deposition after being cut into annular again, the material except that annular is all discarded, and the utilization rate of material is very low like this.Press the used precast body of model aircraft carbon brake discs such as B757, A320 and calculate, the utilization rate of its material is 54%, and it is that leftover pieces are scrapped that 46% material is arranged.And used raw material all is 12K carbon fibers of the eastern beautiful or eastern nation production of Japan at present, because the price height, the per kilogram precast body (contains the leftover pieces supply) more than thousand yuan, and cost is very high.
Check on the net in State Intellectual Property Office: announced name on April 19th, 2006 and be called " preparation method of carbon/carbon composite brake disc " patent, the method that weaves is adopted in the making that mainly is matrix, avoided in the conventional method matrix material to use charcoal cloth, acupuncture charcoal felt, needle-punched carbon fiber etc., needed to shear, the process of lamination.The preparation method of carbon/carbon composite brake disc, mainly comprise braiding making, matrix moulding, the matrix of matrix vapour deposition or resin pickup charing, high-temperature heat treatment, machining, anti-oxidation processing, assemble at last, it is characterized in that the braiding preparation method of described matrix mainly may further comprise the steps:
A, be ready to the charcoal fiber that will use or pre-oxygen silk;
B, the needle gage of getting well according to calculating in advance fix crochet needle or mix up knitting needle on the adjustable inner and outer ring of diameter;
C, elder generation rotate matrix along X-axis or radial direction braiding one deck in 0～90 ° of scope;
D, again along Y-axis or hoop direction establishment one deck, in 0～90 ° of scope, rotate matrix;
E, repetition a, two steps of b are up to reaching required thickness;
F, Z is mixed up to the fibre length that inweaves at every turn according to matrix thickness;
G, with the fiber that mixes up along Z to going into knitting, Z can finish braiding according to requiring any adjustment to needle gage.
Check in again on the net in State Intellectual Property Office: announced name on May 10th, 2006 and be called " a kind of non-woven needle-punched fabric and quasi three-dimensional prefab " patent, mainly relate to a kind of by prefabricated thin layer adhesive-bonded fabric of polyacrylonitrile-based carbon fibre and woven cloth, and the quasi three-dimensional prefab that forms through the acupuncture of multi-turn lamination, having overcome existing employing is the defective of main lamination acupuncture prefabricated component with rectangular OPF woven cloth.It is made by short fiber superimposed and acupuncture at random, and said short fiber is the polyacrylonitrile-based carbon fibre substance, through steam or chemical modification handle, machinery is loose, unclog and readjust, to become surface density be the thin layer adhesive-bonded fabric of 40-120 gram/rice 2 in acupuncture.
Three, technology contents
The objective of the invention is to develop a kind of manufacturing carbon/carbon compound material brake disc annular precast body and weaving method thereof.Improve the quality of raw-material utilization rate and converted products.Change long stapled orthogonal arrangement simultaneously, reach mechanical performance each to uniformity, improve frictional behavior, mechanical characteristic and the combination property of carbon brake disc.
At present, the carbon dish that nonopiate precast body of the present invention produced can double service life.
Technical solution of the present invention: (understand technology contents for convenience, simultaneously referring to accompanying drawing and description of drawings, label is positioned at bracket.) carbon/carbon compound material brake disc annular precast body, it is characterized in that: by each elementary layer (8) α is between 10 °～85 ° angles layer by layer successively the anglec of rotation, up and down complex superposition lay, vertical acupuncture repeatedly, add that to be pressed into density be 0.5～0.58 gram per centimeter
2, internal diameter is 200～300 millimeters, external diameter is 500～600 millimeters, highly is 30～36 millimeters annular precast body.
Technical solution of the present invention also comprises:
Make described carbon/carbon compound material brake disc annular precast body weaving method, it is characterized in that: making step is as follows:
A, at normal temperatures and pressures will one deck polypropylene type carbon fiber filament (1) and the pre-oxygen silk screen of one deck polyacrylonitrile-radical tire (2) go up overlapping tiling down and form " 1+1 structure ", be fixed into long paper shape " felt body " with needing machine through vertical acupuncture; Its needling density is 10～30 pins/cm2;
B, with model this felt body blanking is become four of symmetry in twos, make the surplus minimum through stock layout, be combined into one deck garden annular with four, internal diameter is 200～300 millimeters, and external diameter is 500～600 millimeters, constitutes carbon felt part " elementary layer (8) ";
C, with above-mentioned each elementary layer (8) by long stapled direction a selected angle or selected angular range between the angles of α=10 °～85 °, rotate this α angle or this α angular range, complex superposition laying up and down more layer by layer successively, when being taped against elementary layer (8) for the 5-10 layer, begin with needing machine acupuncture up and down, make the long fibre in the polypropylene type carbon fiber filament (1) strain the location up and down, become one single " felt body " after finishing an annular acupuncture; Repave next elementary layer on this basis, repeat an acupuncture again, so circulation is complete " the felt body " of the annular that is strained and fixed after each elementary layer acupuncture, adds to be pressed into that to reach institute's required thickness be that 30～36 millimeters, density are 0.5～0.58 gram per centimeter
2The time, finish the weaving of full annular precast body (9).
Described manufacturing carbon/carbon compound material brake disc annular precast body weaving method, it is characterized in that: by long stapled direction selected angle between the angles of α=10 °～85 °, this angle is 15 °, 30 °, 45 °, 60 °, 75 ° special angle with said units layer (8).
Described manufacturing carbon/carbon compound material brake disc annular precast body weaving method, it is characterized in that: with said units layer (8) by long stapled direction selected angle between the angles of α=10 °～85 °, this angle is 38 ° of-42 ° of scopes, and the best is 40 ° of special angle.
Described manufacturing carbon/carbon compound material brake disc annular precast body weaving method, it is characterized in that: one deck polypropylene type carbon fiber filament (1) and the pre-oxygen silk screen of one deck polyacrylonitrile-radical tire (2) are gone up overlapping tiling formation " 1+1 structure " down, and its both mass ratios are 7: 3.
Described manufacturing carbon/carbon compound material brake disc annular precast body weaving method, it is characterized in that: one deck polypropylene type carbon fiber filament (1) and the pre-oxygen silk screen of one deck polyacrylonitrile-radical tire (2) are gone up overlapping tiling formation " 1+1 structure " down, be fixed into long paper shape " felt body " with needing machine through vertical acupuncture, its needling density is 9～30 pins/cm
2The said units layer by long stapled direction selected angle between 10 °～85 ° angles, is rotated this angle, complex superposition laying up and down layer by layer successively, fix with acupuncture about the needing machine, its needling density is 9～64 pins/cm
2
Advantage of the present invention and effect
1, advantage: cut out joining method owing to adopted, can reach more than 40% so save material; Can weave nonopiate precast body, reach the structure of the long stapled angle of the desired difference of design, improve the uniformity of mechanical strength, improve the service life of airplane carbon brake disc; Use domestic carbon fibre long filament and pre-oxygen silk screen tire " 1+1 " mixed structure, can satisfy the airplane carbon brake disc performance requirement, can reduce cost again; Technology is simple, realizes the production of extensiveization easily.
2, effect: the carbon/carbon compound material brake disc that the precast body that adopts the present invention to produce through the applicant deposits, not only technology simply is easy to realize, and it is even to detect every mechanical performance by sample, it is little to detect the every performance data discreteness in back, and easily forms the needed coarse tissue of friction material after microcosmic detects the carbon deposition; Improved the service life of carbon brake disc, the frictional behaviour of carbon dish also is improved.Through the inertia platform dynamic test of full-page proof, M curve is smooth steadily, and frictional behaviour is good, the seaworthiness that is content with very little condition.Use through installation, braking quality satisfies airworthiness requirement.
Four, description of drawings
Fig. 1 is the planar structure schematic diagram that prior art is made precast body; Fig. 2 is that " 1+1 structure " is fixed into long paper shape felt body structure schematic diagram through vertical acupuncture; Fig. 3 becomes symmetrical in twos four with model with the blanking of felt body, constitutes first kind of stock layout structural representation of carbon felt part " elementary layer "; Fig. 4 becomes the blanking of felt body among four of symmetry in twos two and Fig. 5 to constitute second kind of stock layout structural representation of carbon felt part " elementary layer " with model; Fig. 5 becomes the blanking of felt body among four of symmetry in twos two and Fig. 4 to constitute second kind of stock layout structural representation of carbon felt part " elementary layer " with model; Fig. 6 is the cross-sectional view that is woven into the full annular precast body; Fig. 7 is that A-A cuts open first elementary layer structural representation among Fig. 6; Fig. 8 is that B-B cuts open second elementary layer structural representation among Fig. 6; Fig. 9 is that C-C cuts open the 3rd elementary layer structural representation among Fig. 6; Figure 10 is the plane perspective structural representation that is woven into three annular element body shop layers;
Label declaration among the above-mentioned figure: 1-polypropylene type carbon fiber filament, be called for short long fibre; The pre-oxygen silk screen of 2-polyacrylonitrile-radical tire is called for short the net tire; 3-1/4 annular element layer; The 4-1/4 garden lacks elementary layer, 5-ground floor opposite joint, 6-second layer opposite joint, the 3rd layer of opposite joint of 7-, the 8-elementary layer, 9-precast body, D-brake disc external diameter, d-brake disc internal diameter, δ-allowance, α-opposite joint angle, each elementary layer is by the relative angle of laying of its long fibre direction in other words.
Five, the specific embodiment
Adjoint is done further statement, referring to Fig. 1, this is precast body 9 structural representations of original market sale, calculate with square 2 * (D+2 δ) areas during purchase, cost is high, and the precast body used as model aircraft carbon brake discs such as B757, A320, B747, A318, A319, A320 calculates, the ring in hollow and all around the angle all to discard, although this is that complex superposition is made about whole the elementary layer, dependable performance, cost is too high.Be spliced into annular airplane carbon brake disc sample if reduce the discarded of material, under the impregnable condition of each performance indications of airplane carbon brake disc, carbon/carbon compound material brake disc annular precast body weaving method is the target that the applicant studies.Among the figure brake disc outer diameter D generally be can 〉=600 millimeters, the brake disc inner diameter d generally is≤200 millimeters, allowance δ generally is 20～30 millimeters.
Referring to Fig. 2, at normal temperatures and pressures one deck polypropylene type carbon fiber filament 1 and the pre-oxygen silk screen of one deck polyacrylonitrile-radical tire are gone up overlapping tiling formation " 1+1 structure " 2 times, with the vertical acupuncture of needing machine warp, barb on the pin makes long fibre, and about in the of 1 the pull-up location, as cross do cloth shoes receive sole, long fibre 1 is up and down fixed " 1+1 structure " growth scroll " felt body "; General needling density is 0.3---0.6 scope, and material is selected from the domestic market, as 12K long fibre 1, different width is arranged, and thickness is generally 1～3 millimeter; Net tire 2 model 12K (place that is marked with is also referred to as thin carbon felt to the pre-oxygen silk screen of polyacrylonitrile-radical tire 2) also have different width, and thickness is generally 0.1～0.5 millimeter.The mass ratio of felt body medium-length fibre 1 and net tire 2 is in 7: 2～4 scopes, and thickness is at 1.1～3.5 millimeters.
Referring to Fig. 3, this is first kind of scheme that the felt type is cut into elementary layer 8, and its width is H
1=d+2 δ, simultaneously referring to Fig. 7, an annular element layer 8 is divided into four, symmetrical in twos, two 1/4 gardens lack the elementary layer 8 that an annular is formed or be combined into to elementary layer 3 and two 1/4 annular element layers 4, pass through surplus minimum after the cutting like this, and compare minimizing (having saved in other words) 40% originally.
Referring to Fig. 4 and Fig. 5, this is second kind of scheme that the felt type is cut into elementary layer 8, and Fig. 4 is the same with Fig. 3, and its felt body width is H
1=d+2 δ is used to cut out 1/4 annular element layer 3; Its felt body width of Fig. 5 is H
2=(D-d)/2+2 δ, being used to cut out 1/4 garden and lacking elementary layer 4, four elementary layers 8 of forming or being combined into an annular in like manner through surplus minimum after the cutting, and were compared minimizing (having saved in other words) 40% originally.
Referring to Fig. 6, Fig. 7, Fig. 8 and Fig. 9, precast body 9 is through acupuncture by a plurality of elementary layers 8, pressurization is fixed into certain density, allowance is arranged, also nonheat-treated annular disk body, wherein each elementary layer 8 is fixedly formed through acupuncture by four, a plurality of elementary layers 8 tile up and down successively has angle to require, past is quadrature (90 °), now use nonopiate arrangement, this is a main feature of the present invention, (simultaneously referring to Figure 10) elementary layer 8 is by long stapled direction a selected α angle or selected angular range between 10 °～85 ° angles, as selected α=15 ° (perhaps 30 °, 45 °, 60 °, 75 °, 85 °, 35 °, 40 °, 50 °, 65 ° of grades all can) angle, (other angles are 15 °～30 ° certainly for perhaps selected 35 °～50 ° angular ranges, 30 °～45 °, 45 °～55 °, 55 °～70 °, 70 °～80 °, 80 °～85 ° scopes all can), rotate this α angle or this angular range layer by layer successively, complex superposition is laid up and down, when being taped against the 5-10 layer, begin with needing machine acupuncture up and down, the long fibre that carbon fiber filament is not had in the latitude cloth 1 is strained the location up and down, and finishing becomes an annular " polynary layer " after the annular acupuncture; Re-lay next polynary layer on this basis, repeat an acupuncture again, so circulation is strained and fixed into the complete disk body of an annular after with each polynary layer acupuncture, add again be pressed into reach 30～36 millimeters of desired thickness, density is 0.5～0.58 gram per centimeter
2The time, finish the weaving of full annular precast body.After Overheating Treatment, be called " carbon brake disc base substrate " again.
It is emphasized that the said units layer by long stapled direction selected angle between 38 °～42 ° angles, the best is 40 ° of special angle, this is because the carbon brake disc of institute's organic type all adopts 9 key teeth at present, just say that also 360 ° of borders of carbon brake disc have 9 teeth to distribute, average each bottom angle is 40 °, this angle carbon brake disc key tooth is subjected to stress best, and service life is longer.Because the key tooth has individual arc length, so there is individual angular range to allow, adopted here between 38 °～42 ° angles, angle is selected in 40 ° ± 2 ° for well in other words.
Referring to Figure 10, this is the perspective view that lay on the plane, lays as α=40 ° angle, and three-layer unit layer 8 superpose changeing up and down and lays, ground floor opposite joint 5, and 6, the three layers of opposite joint 7 of second layer opposite joint are generally so approximately laid 30～40 layers of elementary layer 8 repeatedly.Finish whole the present invention through reaching required density, size after acupuncture, the pressurization.
Claims (6)
1. carbon/carbon compound material brake disc annular precast body is characterized in that: by each elementary layer (8) α is between 10 °～85 ° angles layer by layer successively the anglec of rotation, up and down complex superposition lay, vertical acupuncture repeatedly, add that to be pressed into density be 0.5～0.58 gram per centimeter
2, internal diameter is 200～300 millimeters, external diameter is 500～600 millimeters, highly is 30～36 millimeters annular precast body.
2. make the described carbon/carbon compound material brake disc annular of claim 1 precast body weaving method, it is characterized in that: making step is as follows:
A, at normal temperatures and pressures will one deck polypropylene type carbon fiber filament (1) and the pre-oxygen silk screen of one deck polyacrylonitrile-radical tire (2) go up overlapping tiling down and form " 1+1 structure ", be fixed into long paper shape " felt body " with needing machine through vertical acupuncture; Its needling density is 10～30 pins/cm2;
B, with model this felt body blanking is become four of symmetry in twos, make the surplus minimum through stock layout, be combined into one deck garden annular with four, internal diameter is 200～300 millimeters, and external diameter is 500～600 millimeters, constitutes carbon felt part " elementary layer (8) ";
C, with above-mentioned each elementary layer (8) by long stapled direction a selected angle or selected angular range between the angles of α=10 °～85 °, rotate this α angle or this α angular range, complex superposition laying up and down more layer by layer successively, when being taped against elementary layer (8) for the 5-10 layer, begin with needing machine acupuncture up and down, make the long fibre in the polypropylene type carbon fiber filament (1) strain the location up and down, become one single " felt body " after finishing an annular acupuncture; Repave next elementary layer on this basis, repeat an acupuncture again, so circulation is complete " the felt body " of the annular that is strained and fixed after each elementary layer acupuncture, adds to be pressed into that to reach institute's required thickness be that 30～36 millimeters, density are 0.5～0.58 gram per centimeter
2The time, finish the weaving of full annular precast body (9).
3. manufacturing carbon/carbon compound material brake disc annular precast body weaving method according to claim 2, it is characterized in that: by long stapled direction selected angle between the angles of α=10 °～85 °, this angle is 15 °, 30 °, 45 °, 60 °, 75 ° special angle with said units layer (8).
4. manufacturing carbon/carbon compound material brake disc annular precast body weaving method according to claim 2, it is characterized in that: with said units layer (8) by long stapled direction selected angle between the angles of α=10 °～85 °, this angle is 38 ° of-42 ° of scopes, and the best is 40 ° of special angle.
5. manufacturing carbon/carbon compound material brake disc annular precast body weaving method according to claim 2, it is characterized in that: one deck polypropylene type carbon fiber filament (1) and the pre-oxygen silk screen of one deck polyacrylonitrile-radical tire (2) are gone up overlapping tiling formation " 1+1 structure " down, and its both mass ratios are 7: 3.
6. manufacturing carbon/carbon compound material brake disc annular precast body weaving method according to claim 2, it is characterized in that: one deck polypropylene type carbon fiber filament (1) and the pre-oxygen silk screen of one deck polyacrylonitrile-radical tire (2) are gone up overlapping tiling formation " 1+1 structure " down, be fixed into long paper shape " felt body " with needing machine through vertical acupuncture, its needling density is 9～30 pins/cm
2The said units layer by long stapled direction selected angle between 10 °～85 ° angles, is rotated this angle, complex superposition laying up and down layer by layer successively, fix with acupuncture about the needing machine, its needling density is 9～64 pins/cm
2
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| CN201010529316.1A CN102152555B (en) | 2010-11-01 | 2010-11-01 | Annular preform for manufacturing carbon/carbon composite material brake disc and knitting process method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172398A (en) * | 2012-04-07 | 2013-06-26 | 西安航空制动科技有限公司 | Surface treatment method of fiber for carbon brake disc |
| CN104711774A (en) * | 2015-03-31 | 2015-06-17 | 赵晓明 | Full-carbon-fiber weftless cloth containing carbon-fiber filaments in positive and negative 45-degree directions and preparation method thereof |
| CN109228546A (en) * | 2018-08-22 | 2019-01-18 | 青岛高泰新材料有限公司 | A kind of preparation method of high density multi-angle establishment carbon fiber carbon carbon cylinder |
| CN109795180A (en) * | 2019-02-28 | 2019-05-24 | 山东道普安制动材料有限公司 | A kind of weaving method of the carbon fiber precast body of automobile brake disc |
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| US20060068150A1 (en) * | 2002-06-11 | 2006-03-30 | Martin Henrich | Tribological fiber composite component produced according to the tfp process |
| CN101418840A (en) * | 2008-11-26 | 2009-04-29 | 南京航空航天大学 | C/C composite material brake disc seam spreading method |
| CN101503843A (en) * | 2009-03-02 | 2009-08-12 | 宜兴市飞舟高新科技材料有限公司 | Pre-oxidized fiber filament / pre-oxidized fiber net tire composite pricking prefabricated body and method for manufacturing the same |
| CN101575766A (en) * | 2009-06-10 | 2009-11-11 | 西安超码科技有限公司 | Method for manufacturing needle-punched carbon fiber pseudo-three-dimensional preform |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060068150A1 (en) * | 2002-06-11 | 2006-03-30 | Martin Henrich | Tribological fiber composite component produced according to the tfp process |
| CN101418840A (en) * | 2008-11-26 | 2009-04-29 | 南京航空航天大学 | C/C composite material brake disc seam spreading method |
| CN101503843A (en) * | 2009-03-02 | 2009-08-12 | 宜兴市飞舟高新科技材料有限公司 | Pre-oxidized fiber filament / pre-oxidized fiber net tire composite pricking prefabricated body and method for manufacturing the same |
| CN101575766A (en) * | 2009-06-10 | 2009-11-11 | 西安超码科技有限公司 | Method for manufacturing needle-punched carbon fiber pseudo-three-dimensional preform |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172398A (en) * | 2012-04-07 | 2013-06-26 | 西安航空制动科技有限公司 | Surface treatment method of fiber for carbon brake disc |
| CN103172398B (en) * | 2012-04-07 | 2014-05-14 | 西安航空制动科技有限公司 | Treatment method of fiber for carbon brake disc |
| CN104711774A (en) * | 2015-03-31 | 2015-06-17 | 赵晓明 | Full-carbon-fiber weftless cloth containing carbon-fiber filaments in positive and negative 45-degree directions and preparation method thereof |
| CN109228546A (en) * | 2018-08-22 | 2019-01-18 | 青岛高泰新材料有限公司 | A kind of preparation method of high density multi-angle establishment carbon fiber carbon carbon cylinder |
| CN109228546B (en) * | 2018-08-22 | 2020-07-10 | 青岛高泰新材料有限公司 | Preparation method of high-density multi-angle woven carbon fiber carbon cylinder |
| CN109795180A (en) * | 2019-02-28 | 2019-05-24 | 山东道普安制动材料有限公司 | A kind of weaving method of the carbon fiber precast body of automobile brake disc |
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| CN102152555B (en) | 2014-06-04 |
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