CN103072258B - A kind of crashproof parts and its production and use - Google Patents
A kind of crashproof parts and its production and use Download PDFInfo
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- CN103072258B CN103072258B CN201210570684.XA CN201210570684A CN103072258B CN 103072258 B CN103072258 B CN 103072258B CN 201210570684 A CN201210570684 A CN 201210570684A CN 103072258 B CN103072258 B CN 103072258B
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Abstract
The invention discloses a kind of crashproof parts and its production and use, particularly, described crashproof parts are that the composite construction that acrylic resin impregnated in carbon fiber is spliced.Described crashproof parts preparation method comprises step: (a) forms preimpregnation sheet material; B () forms the stacking preimpregnation sheet material cut out through cutting; C () forms composite board; D () forms crashproof parts.Product of the present invention and method have that quality is light, energy-conserving and environment-protective, can serialization automated production in enormous quantities, shaping efficiency advantages of higher.
Description
Technical field
The present invention relates to crashproof component materials and crashproof parts manufacture technology field, the method for the crashproof parts particularly relating to a kind of fibre reinforced acrylic resin composite and use this fibre reinforced PP composite material to make.
Background technology
Safety, energy-saving and environmental protection are developing direction of current automotive field.Reduce oil consumption and reduce the key issue pollution of environment having been become to automobile industry development and the solution of social sustainable development urgent need.
Automotive light weight technology is one of most effective way reducing oil consumption.Each large automobile production commercial city, the world is in the automobile component manufacturing technology of competitively development of new lightweight materials used in auto manufacturing and respective material.In general, the observable index of automobile making and use is 1:10, and automotive light weight technology can make total energy consumption greatly reduce.According to data introduction, automotive dead weight alleviates 100 kilograms, travels 100 kilometers, can fuel-economizing 0.3 kilogram; Weight reduction 10%, fuel economy can improve 10%.
Composite is significantly alleviating car mass, also less power demand, little driving engine and suspension arrangement can be caused while improving fuel economy, and reduce danger of burst due to the minimizing of kinetic energy, this screw type result will make body quality alleviate further, and driving performance improves further.
Traditional composite is as fiber reinforced thermosetting resin based composites, and its molding time is long, and has the discharge of pernicious gas in forming process, is not easy to recycling.
Therefore, this area is simple in the urgent need to developing a kind of preparation method, is applicable to continuous automatic production in enormous quantities, and the crashproof parts of excellent performance.
Summary of the invention
The present invention improves material prescription and the production technology of crashproof parts, thus provide a kind of crashproof parts newly with and preparation method thereof.
A first aspect of the present invention provides a kind of preparation method of crashproof parts, comprises the following steps:
A () forms preimpregnation sheet material
Carbon fiber, acrylic resin and Kapton are imported the pre-dipping machine of dry state, obtained preimpregnation sheet material, the composite construction of wherein said preimpregnation sheet material is that acrylic resin impregnated in carbon fiber;
B () forms the stacking preimpregnation sheet material cut out through cutting
(b1) according to the size of target product, described preimpregnation sheet material being carried out cutting and cuts out, being formed through cutting the preimpregnation sheet material cut out; And according to the thickness of target product, the preimpregnation sheet material after described cutting being cut out carries out superposition laying, formed stacking through cutting the preimpregnation sheet material cut out; Or
(b2) according to the thickness of target product, described preimpregnation sheet material is carried out superposition laying, form stacking preimpregnation sheet material; And according to the size of target product, described stacking preimpregnation sheet material is carried out cutting and cuts out, formed stacking through cutting the preimpregnation sheet material cut out;
C () forms composite board
Stacking is prepared composite board through cutting the preimpregnation sheet material cut out by press; With
D () forms crashproof parts
By described composite board by after pre-heat transport apparatus preheating, the mould of inserting target product carries out punch forming, obtained crashproof parts.
In another preference, described crashproof parts comprise the anti-striker of automobile buffer beam, the anti-striker of toy, recreation facility and sports equipment.
In another preference, described step (a) to (d) is that automation is carried out continuously.
In another preference, described press is two steel band press.
In another preference, described two steel band press heating-up temperatures are 150 ~ 250 DEG C, more preferably, and 180 ~ 230 DEG C;
In another preference, the speed of service of described two steel band press is set as 0.2 ~ 5m/min, more preferably, and 0.5 ~ 2.5m/min.
In another preference, described carbon fiber comprises continuous carbon fibre; Described acrylic resin is selected from polypropylene continuous tow, polypropylene film, polypropylene non-woven fabric, polypropylene fibre felt;
In another preference, described continuous carbon fibre comprises continuous carbon fibre bundle, carbon fibre fabric; Wherein, described carbon fibre fabric comprises plain cloth, twills, satin fabric, one-way fabric, multi-axial tricot;
In another preference, be unidirectional preimpregnation sheet material with the preimpregnation sheet material that described continuous carbon fibre bundle is obtained, the preimpregnation sheet material obtained with described carbon fibre fabric is for textile type preimpregnation sheet material;
In another preference, described superposition laying both can be used alone unidirectional preimpregnation sheet material or a certain textile type preimpregnation sheet material carries out laying, also unidirectional preimpregnation sheet material can be mixed laying with textile type preimpregnation sheet material or different types of textile type preimpregnation sheet material mixes laying.
In another preference, the pre-dipping machine temperature of described dry state is set as 150 ~ 250 DEG C, more preferably, is 180 ~ 230 DEG C; And/or
The pre-dipping machine speed of service of described dry state is 0.2 ~ 5m/min, is more preferably 0.5 ~ 3m/min.
In another preference, described pre-heat transport apparatus heating-up temperature is 150 ~ 250 DEG C, and more preferably, 180 ~ 230 DEG C, the heat time is 30s ~ 300s.
In another preference, wherein step (d) also comprises the sub-step of heating, matched moulds pressurization, pressurize, die sinking, the demoulding, deburring, polishing, welding;
In another preference, described heating-up temperature is 180 ~ 230 DEG C, duration 30s ~ 300s; And/or
Matched moulds is forced into 1 ~ 10MPa, pressurize 20 ~ 300s, and mold temperature is 60 ~ 110 DEG C; And/or
Dwell time is 20 ~ 300s.
A second aspect of the present invention, provides a kind of crashproof parts, and described crashproof parts prepare by the method described in first aspect present invention.
In another preference, described crashproof parts are formed by multilayer composite board, and wherein each composite board is the composite that acrylic resin impregnated in carbon fiber.
A third aspect of the present invention, provides the purposes that second aspect present invention prepares crashproof parts, and it may be used for the anti-striker preparing automobile buffer beam, the anti-striker of toy, recreation facility and sports equipment.
A third aspect of the present invention, provides a kind of composite board, is to be prepared from by step (a)-(c) in first aspect present invention, wherein
A () forms preimpregnation sheet material
Carbon fiber, acrylic resin and Kapton are imported the pre-dipping machine of dry state, obtained preimpregnation sheet material, the composite construction of wherein said preimpregnation sheet material is that acrylic resin impregnated in carbon fiber;
B () forms the stacking preimpregnation sheet material cut out through cutting;
(b1) according to the size of target product, described preimpregnation sheet material being carried out cutting and cuts out, being formed through cutting the preimpregnation sheet material cut out; And according to the thickness of target product, the preimpregnation sheet material after described cutting being cut out carries out superposition laying, formed stacking through cutting the preimpregnation sheet material cut out; Or
(b2) according to the thickness of target product, described preimpregnation sheet material is carried out superposition laying, form stacking preimpregnation sheet material; And according to the size of target product, described stacking preimpregnation sheet material is carried out cutting and cuts out, formed stacking through cutting the preimpregnation sheet material cut out;
C () forms composite board
Stacking is prepared composite board through cutting the preimpregnation sheet material cut out by press.
A fourth aspect of the present invention, provides a kind of device systems preparing crashproof parts, comprising:
The pre-dipping machine of (i) dry state, the pre-dipping machine of described dry state is for the preparation of the preimpregnation sheet material described in first aspect present invention;
(ii) two steel band press;
(iii) conveyer is preheated;
(iv) target product mould;
(v) hydraulic press.
In another preference, the pre-dipping machine of described dry state comprises guide roller, carry-over pinch rolls, warm-up mill, backer roll, chill roll and wind-up roll; And/or
Described double-steel belt pressing machine comprises the thermal treatment zone, pressor areas and cooling zone, wherein said pressor areas applies pressure by setting backer roll spacing, and described backer roll spacing meets following formula: backer roll spacing (mm)=individual layer preliminary-dip piece thickness (mm) × laying number of plies; And/or
The described conveyer that preheats comprises heater, connecting gear;
Described hydraulic press is used in punch forming process, mould being carried out to matched moulds, applying pressure and die sinking;
In another preference, the pre-dipping machine temperature of described dry state is set as 150 ~ 250 DEG C, more preferably, is 180 ~ 230 DEG C; The described pre-dipping machine speed of service is 0.2 ~ 5m/min, is more preferably 0.5 ~ 3m/min;
In another preference, described two steel band press heating-up temperatures are 150 ~ 250 DEG C, more preferably, and 180 ~ 230 DEG C; The speed of service of described two steel band press is set as 0.2 ~ 5m/min, more preferably, and 0.5 ~ 2.5m/min;
In another preference, the described conveyer temperature that preheats is set as 150 ~ 250 DEG C, more preferably, and 180 ~ 230 DEG C;
In another preference, described hydraulic press pressure setting is 1 ~ 10MPa, and the dwell time is set as 2-~ 300S.
Should be understood that within the scope of the present invention, above-mentioned each technical characteristic of the present invention and can combining mutually between specifically described each technical characteristic in below (eg embodiment), thus form new or preferred technical scheme.As space is limited, tiredly no longer one by one to state at this.
Accompanying drawing explanation
Fig. 1 is the manufacturing process schematic diagram of fibre reinforced PP composite material preimpregnation sheet material in the embodiment of the present invention 1;
Wherein numeral is: 1. Kapton, 2. polypropylene fibre, 3. carbon fiber, 4. jockey pulley, 5. opens up yarn rod, 6. guide bars, 7. carry-over pinch rolls, 8-1.8-2 and 8-3. warm-up mill, 9. backer roll, 10. chill roll, 11. guide rollers, 12, wind-up roll.
Fig. 2 is the technical process schematic diagram for the preparation of fibre reinforced composite polypropylene board in the embodiment of the present invention 1 and 2;
Wherein numeral is: 13. wheel hubs, steel band on 14., 15. times steel bands, 16. heating plates, 17. coldplates, 18. pressure rollers, the unidirectional pre-preg layers laying of 19. fibre reinforced polypropylene, 20. Kaptons.
Fig. 3 is for making the technical process schematic diagram of automobile buffer beam Part I in the embodiment of the present invention 1 and 2;
Wherein numeral is the unidirectional sheet material of 21. fibre reinforced polypropylene, 22. heaters, 23. connecting gears, 24. formpistons, 25. formers, 26. automobile buffer beam Part I parts.
Fig. 4 is the longitudinal section making the automobile buffer beam Part II obtained in the embodiment of the present invention 1 and 2.
Fig. 5 is the process schematic in the embodiment of the present invention 1 and 2, collision prevention girders two parts being carried out electric resistance welding.
Wherein numeral is: 26. automobile buffer beam Part I parts, 27. automobile buffer beam Part II parts, 28. heating element heaters, 29. contact fixtures, 30. switches, 31. power supplys, 32. ammeters, 33. voltmeters.
Fig. 6 is the manufacturing process schematic diagram of fibre reinforced PP composite material preimpregnation sheet material in the embodiment of the present invention 2;
Wherein numeral is: 1.PI film, 6. guide bars, 7. carry-over pinch rolls, 8-1,8-2 and 8-3. warm-up mill, 9. backer roll, 10. chill roll, 11. guide rollers, 12, and wind-up roll, 34. carbon fibre fabrics, 35. polypropylene films.
Fig. 7 is the three-dimensional model diagram making the automobile buffer beam one integral piece product obtained in the embodiment of the present invention 1 and 2.
Detailed description of the invention
The present inventor is through extensive and deep research, be surprised to find that first, improve crashproof parts prepare material and progress after, the crashproof parts that the quality of production is light, intensity is high, shock resistance is good can be realized by continuous and automatic in enormous quantities, can in the extensive use of the industrial circle such as automobile, toy, and produce without noxious material in preparation process, energy-saving production technology environmental protection.
Carbon fiber
Carbon fiber be phosphorus content higher than 90% inorganic polymer fiber.Axial strength and the modulus of carbon fiber are high, and without creep, fatigue durability is good, and specific heat and electric conductivity are between nonmetal and metal, and thermal coefficient of expansion is little, good corrosion resistance, and the density of fiber is low.
Carbon fiber used in the present invention is not particularly limited, and can be continuous carbon fibre, described continuous carbon fibre comprises continuous carbon fibre bundle or carbon fibre fabric.
Described carbon fibre fabric comprises plain cloth, twills, satin fabric, one-way fabric, multi-axial tricot;
Described continuous carbon fibre bundle can be buied by commercially available, such as Japanese Torayca company's T 300-3K, T700S-12K, T700S-24K, Zoltek, USA Panex33, German SGL company 46K carbon fiber etc.
Wherein, be unidirectional preimpregnation sheet material with the preimpregnation sheet material that described continuous carbon fibre bundle is obtained, the preimpregnation sheet material obtained with described carbon fibre fabric is for textile type preimpregnation sheet material.
Acrylic resin
Acrylic resin is a kind of thermoplastic resin, has heat-resisting, corrosion-resistant, the characteristic that density is little, is the lightest general-purpose plastics.Shortcoming is that low-temperature impact resistance is poor, more aging.
Acrylic resin used in the present invention is not particularly limited, and can be various commercially available polyacrylic resin material.Preferably, acrylic resin of the present invention comprises propylene continuous tow, polypropylene film, polypropylene non-woven fabric, polypropylene fibre felt.
In addition, be applicable to acrylic resin of the present invention and also comprise various modification or unmodified acrylic resin.
Preimpregnation sheet material and preparation method thereof
Preimpregnation sheet material of the present invention is that acrylic resin and carbon fiber are imported the pre-dipping machine of dry state, and at certain temperature and velocity conditions by dry state preimpregnation machine-processed, wherein acrylic resin impregnated in carbon fiber.
Be bonded on pre-dipping machine roller for preventing acrylic resin in the process of preparation preimpregnation sheet material, preferably acrylic resin and carbon fiber are sandwiched between two layers of polyimide film, then by the pre-dipping machine of dry state, wherein, described Kapton removes or removes after preparation preimpregnation sheet material.
The pre-dipping machine of described dry state comprises guide roller, carry-over pinch rolls, warm-up mill, backer roll, chill roll and wind-up roll.
Wherein, described composite material presoaked machine heating roller temperature is set as 150 ~ 280 DEG C, more preferably, is 180 ~ 230 DEG C; The each roller speed of service of described composite material presoaked machine is 0.2 ~ 5m/min, is more preferably 0.5 ~ 3m/min.
In another preference, be unidirectional preimpregnation sheet material with the preimpregnation sheet material that continuous carbon fibre bundle is obtained, the preimpregnation sheet material be worth with carbon fibre fabric is for textile type preimpregnation sheet material.
Wherein, preimpregnation sheet material cut rear length should all large than target product mould correspondence direction size 1.0 ~ 3.0cm with width.
Composite board and preparation thereof
Composite board of the present invention, is that the preimpregnation sheet material of certain number of plies is carried out superposition laying by different laying directions according to target product thickness requirement by preimpregnation sheet material of the present invention after cutting, and is suppressed by press, thus obtained composite board.
Wherein, described press is preferably double-steel belt pressing machine.Described double-steel belt pressing machine comprises the thermal treatment zone, pressor areas and cooling zone; Described Heating Zone Temperature is set as 150 ~ 280 DEG C, more preferably, and 180 ~ 230 DEG C; The speed of service of described steel band is set as 0.2 ~ 5m/min, more preferably, and 0.5 ~ 2.5m/min; Described pressor areas applies pressure by setting backer roll spacing, and wherein backer roll spacing meets following formula: backer roll spacing (mm)=individual layer preliminary-dip piece thickness (mm) × laying number of plies.
In another preference, be bonded on the steel band of double-steel belt pressing machine to prevent acrylic resin in the process preparing fibre reinforced composite polypropylene board, be laid between two layers of polyimide film by superposing laying preimpregnation sheet material, Kapton length 5 ~ 10cm larger than described preimpregnation sheet material correspondence direction with width, then sends into double-steel belt pressing machine and prepares composite board.
When preimpregnation sheet material is carried out laying, can be used alone arbitrary unidirectional preimpregnation sheet material or arbitrary textile type preimpregnation sheet material carries out laying; Also unidirectional preimpregnation sheet material can be mixed laying with textile type preimpregnation sheet material, or by different types of textile type preimpregnation sheet material mixing laying.
Crashproof parts and preparation thereof
Crashproof parts of the present invention take carbon fiber as skeleton, and the composite construction of complex polypropylene resin is spliced, and may be used for the preparation-vehicles-as the anti-striker of the collision prevention girders of automobile, truck etc., the anti-striker of toy, recreation facility and sports equipment.
The method of the crashproof parts described in preparation comprises the following steps:
A) preimpregnation sheet material is formed
Carbon fiber, acrylic resin and Kapton are imported the pre-dipping machine of dry state, obtained preimpregnation sheet material, the composite construction of wherein said preimpregnation sheet material is that acrylic resin impregnated in carbon fiber;
B () forms the stacking preimpregnation sheet material cut out through cutting
(b1) according to the size of target product, described preimpregnation sheet material being carried out cutting and cuts out, being formed through cutting the preimpregnation sheet material cut out; And according to the thickness of target product, the preimpregnation sheet material after described cutting being cut out carries out superposition laying, formed stacking through cutting the preimpregnation sheet material cut out; Or
(b2) according to the thickness of target product, described preimpregnation sheet material is carried out superposition laying, form stacking preimpregnation sheet material; And according to the size of target product, described stacking preimpregnation sheet material is carried out cutting and cuts out, formed stacking through cutting the preimpregnation sheet material cut out;
C () forms composite board
Stacking is prepared composite board through cutting the preimpregnation sheet material cut out by press; With
D () forms crashproof parts
By described composite board by after pre-heat transport apparatus preheating, the mould of inserting target product carries out punch forming, obtained crashproof parts.
In addition the step of heating, matched moulds pressurization, pressurize, die sinking, the demoulding, deburring, polishing, electric resistance welding is also comprised in step (d); Preferably, described heating-up temperature is 180 ~ 230 DEG C, duration 30s ~ 300s; Matched moulds is forced into 1 ~ 10MPa, and the dwell time is 20 ~ 300s, and mold temperature is 60 ~ 110 DEG C;
Suite of devices
The suite of devices preparing crashproof parts of the present invention comprises:
The pre-dipping machine of (i) dry state; The pre-dipping machine of described dry state is for the preparation of preimpregnation sheet material.
In another preference, carbon fiber, acrylic resin and Kapton are imported the pre-dipping machine of dry state by the preparation method of described preimpregnation sheet material, obtained preimpregnation sheet material, and the composite construction of wherein said preimpregnation sheet material is that acrylic resin impregnated in carbon fiber;
(ii) double-steel belt pressing machine;
(iii) conveyer is preheated;
(iv) target product mould;
(v) hydraulic press.
Wherein, the pre-dipping machine of described dry state comprises guide roller, carry-over pinch rolls, warm-up mill, backer roll, chill roll and wind-up roll.
Described double-steel belt pressing machine comprises the thermal treatment zone, pressor areas and cooling zone, wherein said pressor areas applies pressure by setting backer roll spacing, and described backer roll spacing meets following formula: backer roll spacing (mm)=individual layer preliminary-dip piece thickness (mm) × laying number of plies.
The described conveyer that preheats comprises heater, connecting gear;
In another preference, the pre-dipping machine temperature of described dry state is set as 150 ~ 250 DEG C, more preferably, is 180 ~ 230 DEG C; The described pre-dipping machine speed of service is 0.2 ~ 5m/min, is more preferably 0.5 ~ 3m/min;
In another preference, described two steel band press heating-up temperatures are 150 ~ 250 DEG C, more preferably, and 180 ~ 230 DEG C; The speed of service of described two steel band press is set as 0.2 ~ 5m/min, more preferably, and 0.5 ~ 2.5m/min;
In another preference, the described conveyer temperature that preheats is set as 150 ~ 250 DEG C, more preferably, and 180 ~ 230 DEG C.
Described hydraulic press is used in punch forming process, mould being carried out to matched moulds, applying pressure and die sinking; In another preference, described hydraulic press pressure setting is 1 ~ 10MPa, and the dwell time is set as 2-~ 300S.
Main beneficial effect of the present invention comprises:
1. light, the energy-conserving and environment-protective of quality: composite of the present invention and collision prevention girders are after the Rigidity Calculation such as carrying out, and compared with traditional metal materials collision prevention girders, quality alleviates and reaches more than 60%, can realize making target product as automotive light weight technology, and reach the object of fuel-economizing, environmental protection.
2. can serialization automated production in enormous quantities, shaping efficiency is high: in the preparation process of composite of the present invention and collision prevention girders, each step all can realize serialization automated production in enormous quantities, and die needed temperature comparatively conventional method is low, save cool time, and punch forming is short compared with traditional heating molding time, in the present invention, punch forming is prepared parts and can be reached 10/hour, compared with 1 and 2 ~ 6 hours as shaping in epoxy resin cure of traditional same with thermosetting compound material 1 about per hour that thermoplastic composite is hot-forming, shaping efficiency improves greatly.
3. the recyclable recycling of material: compared with traditional thermosetting resin based composites, the matrix resin-acrylic resin described in the present invention is thermoplastic resin, and the composite therefore in the present invention is easy to reclaim, and can again utilize.
4. preparation technology is pollution-free: compared with adopting the technique of polyphenylene sulfide ethers material, do not have harmful poisonous gas (pernicious gas as sulfur-bearing) to produce in preparation process of the present invention.
5. preparation technology's energy consumption significantly declines: method of the present invention is preferably 180 ~ 230 DEG C in heating-up temperature, significantly lower than the heating-up temperature (290 ~ 350 DEG C) of polyphenylene sulfide ethers composite, reduce energy consumption time saving simultaneously, more meet the requirement of environmental protection.
Below in conjunction with accompanying drawing and specific embodiment, the present invention will be further described:
Embodiment 1
Material: eastern beautiful T700-12K continuous carbon fibre tow and specification are the continuous polypropylene fibre at 800 dawn;
1.1 as shown in Figure 1, continuous carbon fibre tow 3 from creel draw through exhibition yarn roller 5 open up yarn and after applying tension force with apply the continuous polypropylene fibre 2 after tension force through jockey pulley 4 and polyimides thin 1 converges at guide roller 6, wherein polypropylene fibre 2 divides equally the two-layer both sides being positioned at continuous carbon fibre tow 3 continuously, and Kapton is distributed in the both sides of two-layer continuous polypropylene fibre.Converge at the continuous carbon fibre tow 3 of guide roller 6, continuously polypropylene fibre 2, Kapton 1 and enter composite dry state preimpregnation machine through carry-over pinch rolls 7, successively through warm-up mill 8-1,8-2,8-3 heating, backer roll 9 are pressurizeed, chill roll 10 obtains the unidirectional preimpregnation sheet material of fibre reinforced polypropylene by wind-up roll 12 rolling after cooling rear and guide roller 11.
The speed setting of each roller of the pre-dipping machine of dry state is 1.0m/min, and the temperature of warm-up mill 8-1 is set as 180 DEG C, and the temperature of warm-up mill 8-2 is set as 200 DEG C, and the temperature of warm-up mill 8-3 is set as 200 DEG C, and the spacing between backer roll 9 is adjusted to 0.125mm.East used beautiful T700-12K continuous carbon fibre tow 3 totally 75 volumes, specification is continuous polypropylene fibre 2 totally 220 volumes at 800 dawn.
1.2 tear continuous carbon fibre preimpregnation sheet material obtained in 1.1 Kapton of surface off after cut into 220mm × 1220mm size, and with [0/90/0]
4smode laying, fibre reinforced polypropylene unidirectional preimpregnation sheet material laying 19 good for laying is placed between the two-layer Kapton 20 being of a size of 300mm × 1300mm, unidirectional for fibre reinforced polypropylene preimpregnation sheet material laying 19 and Kapton 20 are entered between the upper steel band 14 of double-steel belt pressing machine and lower steel band 15 through blowing district, behind the cooling zone between the pressor areas between the thermal treatment zone between heating plate 16, pressure roller 18, coldplate 17, obtains fibre reinforced composite polypropylene board successively.
The Speed Setting of double-steel belt pressing machine is 0.75mm/min, and the temperature of heating plate 16 is set as 200 DEG C, and the gap between upper steel band 14 and lower steel band 15 is set as 3.0mm, and the spacing setting between pressure roller 18 is 3.0mm.
1.31.2 composite board obtained in cuts burr after tearing the Kapton on surface off, cuts the composite board after burr and is of a size of 200.5mm × 1200.5mm.
1.4 are fixed on conveyer 23 by cutting the composite board after burr, be sent between heater 22, in 200 DEG C, heat 200s by conveyer 23 by fibre reinforced composite polypropylene board.
The continuous fiber reinforced polypropylene composite board heated is sent between the formpiston 24 of automobile buffer beam Part I and former 25 by conveyer 23 by 1.5, formpiston 24 and former 25 is closed, and is forced into 5MPa.Wherein formpiston 24 and former 25 temperature are set as 80 DEG C.
After 1.6 pressurize 100s, die sinking, the demoulding, obtains first 26 of collision prevention girders product.
The mould of collision prevention girders Part I in 1.4 ~ 1.6 changes as the mould of collision prevention girders Part II by 1.7, repeats 1.4 ~ 1.6 and to obtain in the Part II 27, Fig. 4 of collision prevention girders product the sectional view that 27 are the Part II of collision prevention girders product.
Heating element heater 28 is placed between collision prevention girders Part I 26 and collision prevention girders Part II by 1.8, two ends contact fixture 29 clamps, close a switch 30 energising welding under maintenance pressure condition, weldingvoltage and electric current is controlled by power supply 31, ammeter 32 and voltmeter 33, between taking off after having welded, namely finishing weld obtains the final products of composite anti-collision beam parts, and Fig. 7 is the 3 dimensional drawing of the final products of composite anti-collision beam parts.
The unidirectional preimpregnation sheet thickness of fibre reinforced polypropylene obtained in the present embodiment is 0.125mm, and fabric width is 600mm, and surface density is 132g/m
2wherein the fiber volume fraction of carbon fiber is 60.54%, fibre reinforced composite polypropylene board thickness obtained in the present embodiment is 2.9 ~ 3.0mm, and the hot strength obtaining composite board by standard A STMD3039 test is greater than 650Mpa, and stretch modulus is greater than 65Mpa; Obtain composite board bending strength by standard A STMD7264 three-point bend test and be greater than 683Mpa, bending modulus is greater than 62Gpa; The notch impact strength obtaining composite board by standard ISO 179 test is greater than 120KJ/ ㎡.The Rigidity Calculation such as process, obtained composite anti-collision beam parts are compared metal parts loss of weight and are reached 60%.
Embodiment 2
Material: eastern beautiful T300-3K carbon fiber twills and polypropylene fibre film;
Wherein the twill surface density of carbon fiber is 160g/m
2, fabric width is 600mm; The surface density of polypropylene film is 30g/m
2, fabric width is 600mm.
2.1 as shown in Figure 6, carbon fiber twills 34, polypropylene film 35, Kapton 1 are drawn and converged at guide roller 6, wherein two layers of polypropylene film 35 is positioned at the both sides of carbon fiber twills 34, and Kapton 1 is distributed in the both sides of two layers of polypropylene film 35.Converge at the carbon fiber fabric 34 of guide roller 6, polypropylene film 35, Kapton 1 enter composite dry state preimpregnation machine through carry-over pinch rolls 7, successively through warm-up mill 8-1,8-2,8-3 heating, backer roll 9 are pressurizeed, chill roll 10 cools and obtains fibre reinforced polypropylene fabric type preimpregnation sheet material by wind-up roll 12 rolling after guide roller 11.
The speed setting of each roller of the pre-dipping machine of dry state is 1.5m/min, and the temperature of warm-up mill 8-1 is set as 200 DEG C, and the temperature of warm-up mill 8-2 is set as 220 DEG C, and the temperature of warm-up mill 8-3 is set as 220 DEG C, and the spacing between backer roll 9 is adjusted to 0.25mm.
2.2 tear continuous carbon fibre textile type preimpregnation sheet material obtained in 1.1 Kapton of surface off after cut into 230mm × 1230mm size, and with the mode laying of [0/90/0/90/0/90] s, fibre reinforced polypropylene unidirectional preimpregnation sheet material laying 19 good for laying is placed between the two-layer Kapton 20 being of a size of 300mm × 1300mm, fibre reinforced polypropylene fabric type preimpregnation sheet material laying 19 and Kapton 20 are entered between the upper steel band 14 of double-steel belt pressing machine and lower steel band 15 through blowing district, the thermal treatment zone successively between heating plate 16, pressor areas between pressure roller 18, fibre reinforced composite polypropylene board is obtained behind cooling zone between coldplate 17.
The Speed Setting of double-steel belt pressing machine is 1.5mm/min, and the temperature of heating plate 16 is set as 220 DEG C, and the gap between upper steel band 14 and lower steel band 15 is set as 3.0mm, and the spacing setting between pressure roller 18 is 3.0mm.
Fibre reinforced composite polypropylene board thickness obtained in the present embodiment is 2.9 ~ 3.0mm.
2.3 tear fibre reinforced composite polypropylene board obtained in 2.2 Kapton of surface off after cut burr, cut the fibre reinforced composite polypropylene board after burr and be of a size of 201mm × 1200mm.
2.4 are fixed on conveyer 23 by cutting the fibre reinforced composite polypropylene board after burr, be sent between heater 22, in 220 DEG C, heat 150s by conveyer 23 by fibre reinforced composite polypropylene board.
The continuous fiber reinforced polypropylene composite board heated is sent between the formpiston 24 of automobile buffer beam Part I and former 25 by conveyer 23 by 2.5, formpiston 24 and former 25 is closed, and is forced into 3MPa.Wherein formpiston 24 and former 25 temperature are set as 100 DEG C.
After 2.6 pressurize 100s, die sinking, the demoulding, obtains first 26 of collision prevention girders product.
The mould of collision prevention girders Part I changes as the mould of collision prevention girders Part II by 2.4 ~ 2.6 by 2.7, repeats 2.4 ~ 2.6 and to obtain in the Part II 27, Fig. 4 of collision prevention girders product the sectional view that 27 are the Part II of collision prevention girders product.
Heating element heater 28 is placed between collision prevention girders Part I 26 and collision prevention girders Part II by 2.8, two ends contact fixture 29 clamps, close a switch 30 energising welding under maintenance pressure condition, weldingvoltage and electric current is controlled by power supply 31, ammeter 32 and voltmeter 33, between taking off after having welded, namely finishing weld obtains the final products of composite anti-collision beam parts, and Fig. 7 is the 3 dimensional drawing of the final products of composite anti-collision beam parts.
The unidirectional preimpregnation sheet thickness of fibre reinforced polypropylene obtained in the present embodiment is 0.25mm, and fabric width is 600mm, and surface density is 220g/m
2, wherein the fiber volume fraction of carbon fiber is 57.14%.Fibre reinforced composite polypropylene board thickness obtained in the present embodiment is 2.9 ~ 3.0mm, and the hot strength obtaining composite board by standard A STMD3039 test is greater than 605Mpa, and stretch modulus is greater than 58Mpa; Obtain composite board bending strength by standard A STMD7264 three-point bend test and be greater than 627Mpa, bending modulus is greater than 54Gpa; The notch impact strength obtaining composite board by standard ISO 179 test is greater than 125KJ/ ㎡.The Rigidity Calculation such as process, obtained composite anti-collision beam parts are compared metal parts loss of weight and are reached 60%.
The all documents mentioned in the present invention are quoted as a reference all in this application, are just quoted separately as a reference as each section of document.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after having read above-mentioned instruction content of the present invention.
Claims (9)
1. a preparation method for crashproof parts, is characterized in that, said method comprising the steps of:
A () forms preimpregnation sheet material
Carbon fiber, acrylic resin and Kapton are imported the pre-dipping machine of dry state, obtained preimpregnation sheet material, the composite construction of wherein said preimpregnation sheet material is that acrylic resin impregnated in carbon fiber;
B () forms the stacking preimpregnation sheet material cut out through cutting
(b1) according to the size of target product, described preimpregnation sheet material being carried out cutting and cuts out, being formed through cutting the preimpregnation sheet material cut out; And according to the thickness of target product, the preimpregnation sheet material after described cutting being cut out carries out superposition laying, formed stacking through cutting the preimpregnation sheet material cut out; Or
(b2) according to the thickness of target product, described preimpregnation sheet material is carried out superposition laying, form stacking preimpregnation sheet material; And according to the size of target product, described stacking preimpregnation sheet material is carried out cutting and cuts out, formed stacking through cutting the preimpregnation sheet material cut out;
C () forms composite board
Stacking is prepared composite board through cutting the preimpregnation sheet material cut out by press; With
D () forms crashproof parts
By described composite board by after pre-heat transport apparatus preheating, the mould of inserting target product carries out punch forming, obtained crashproof parts;
Wherein, the pre-dipping machine heating-up temperature of described dry state is set as 180 ~ 200 DEG C; The pre-dipping machine speed of service of described dry state is 0.5 ~ 3m/min;
Described press is two steel band press, and two steel band press heating-up temperature is 180 ~ 200 DEG C, and the speed of service of described two steel band press is set as 0.5 ~ 2.5m/min;
Described pre-heat transport apparatus heating-up temperature is 150 ~ 250 DEG C, and the heat time is 200-300s;
Wherein step (d) also comprises the sub-step of heating, matched moulds pressurization, pressurize, die sinking, the demoulding, deburring, polishing, welding, and pressure setting is 1 ~ 10MPa during punch forming, dwell time is set as 20 ~ 300s, and mold temperature set is 60 ~ 110 DEG C.
2. the method for claim 1, is characterized in that, described carbon fiber comprises continuous carbon fibre bundle and carbon fibre fabric; Described acrylic resin is selected from polypropylene continuous tow, polypropylene film, polypropylene non-woven fabric, polypropylene fibre felt.
3. the method for claim 1, is characterized in that, the pre-dipping machine heating-up temperature of described dry state is set as 200 DEG C.
4. method as claimed in claim 2, it is characterized in that, described carbon fibre fabric comprises plain cloth, twills, satin fabric, one-way fabric, multi-axial tricot.
5. crashproof parts, is characterized in that, described crashproof parts are prepared by method according to claim 1.
6. a purposes for crashproof parts according to claim 5, is characterized in that, may be used for the anti-striker preparing automobile buffer beam, the anti-striker of toy, recreation facility and sports equipment.
7. a composite board, is characterized in that, described composite board is prepared from by step (a)-(c) in claim 1, wherein
A () forms preimpregnation sheet material
Carbon fiber, acrylic resin and Kapton are imported the pre-dipping machine of dry state, obtained preimpregnation sheet material, the composite construction of wherein said preimpregnation sheet material is that acrylic resin impregnated in carbon fiber;
B () forms the stacking preimpregnation sheet material cut out through cutting;
(b1) according to the size of target product, described preimpregnation sheet material being carried out cutting and cuts out, being formed through cutting the preimpregnation sheet material cut out; And according to the thickness of target product, the preimpregnation sheet material after described cutting being cut out carries out superposition laying, formed stacking through cutting the preimpregnation sheet material cut out; Or
(b2) according to the thickness of target product, described preimpregnation sheet material is carried out superposition laying, form stacking preimpregnation sheet material; And according to the size of target product, described stacking preimpregnation sheet material is carried out cutting and cuts out, formed stacking through cutting the preimpregnation sheet material cut out;
C () forms composite board
Stacking is prepared composite board through cutting the preimpregnation sheet material cut out by press;
Wherein, the pre-dipping machine heating-up temperature of described dry state is set as 180 ~ 200 DEG C; The pre-dipping machine speed of service of described dry state is 0.5 ~ 3m/min;
Described press is two steel band press, and two steel band press heating-up temperature is 180 ~ 200 DEG C, and the speed of service of described two steel band press is set as 0.5 ~ 2.5m/min.
8. prepare a device systems for crashproof parts, it is characterized in that, described system comprises:
The pre-dipping machine of (i) dry state, the pre-dipping machine of described dry state is for the preparation of preimpregnation sheet material as claimed in claim 1, and the pre-dipping machine heating-up temperature of described dry state is set as 180 ~ 200 DEG C; The pre-dipping machine speed of service of described dry state is 0.5 ~ 3m/min;
(ii) two steel band press, described pair of steel band press is used for preimpregnation sheet material to be prepared into composite board, and described pair of steel band press heating-up temperature is 180 ~ 200 DEG C, and the speed of service of described two steel band press is set as 0.5 ~ 2.5m/min;
(iii) pre-heat transport apparatus, described pre-heat transport apparatus is used for described composite board to carry out preheating, and described pre-heat transport apparatus heating-up temperature is 150 ~ 250 DEG C, and the heat time is 200-300s;
(iv) target product mould, described target product mould is used for described composite board to carry out punch forming, obtained crashproof parts;
V () hydraulic press, described hydraulic press is used in punch forming process, mould being carried out to matched moulds, applying pressure and die sinking, and described hydraulic press pressure setting is 1 ~ 10MPa, and the dwell time is set as 2 ~ 300S.
9. system as claimed in claim 8, it is characterized in that, wherein, the pre-dipping machine of described dry state comprises guide roller, carry-over pinch rolls, warm-up mill, backer roll, chill roll and wind-up roll; And/or
Described double-steel belt pressing machine comprises the thermal treatment zone, pressor areas and cooling zone, wherein said pressor areas applies pressure by setting backer roll spacing, and described backer roll spacing meets following formula: backer roll spacing (mm)=individual layer preliminary-dip piece thickness (mm) × laying number of plies; And/or
Described pre-heat transport apparatus comprises heater, connecting gear.
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| CN106114429B (en) * | 2016-07-22 | 2019-01-01 | 吉林大学 | Composite construction bumper collision prevention girders and manufacturing method |
| CN106553063B (en) * | 2016-08-31 | 2019-02-12 | 杭州钱江万胜电器制造有限公司 | Compressor steel valve plate Integral producing apparatus and its application method |
| KR101858611B1 (en) * | 2017-04-12 | 2018-05-17 | 주식회사 새한산업 | Apparatus for manufacturing of impact beam of vehicle |
| CN107757320A (en) * | 2017-10-17 | 2018-03-06 | 奇瑞汽车股份有限公司 | A kind of crashworthy plate of vehicle door and preparation method, car door |
| CN111716781B (en) * | 2020-06-12 | 2022-08-05 | 杭州西奥电梯有限公司 | Production equipment and process and elevator traction belt produced by production equipment |
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| CN102514117A (en) * | 2011-12-05 | 2012-06-27 | 中国科学院宁波材料技术与工程研究所 | Carbon fiber enhanced polyphenylene sulfide composite material for automobile anticollision beam and method for manufacturing automobile anticollision beam |
| CN101845232B (en) * | 2010-04-29 | 2012-09-26 | 中国科学院宁波材料技术与工程研究所 | Thermoplastic resin-based carbon fiber composite and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101845232B (en) * | 2010-04-29 | 2012-09-26 | 中国科学院宁波材料技术与工程研究所 | Thermoplastic resin-based carbon fiber composite and preparation method thereof |
| CN102514117A (en) * | 2011-12-05 | 2012-06-27 | 中国科学院宁波材料技术与工程研究所 | Carbon fiber enhanced polyphenylene sulfide composite material for automobile anticollision beam and method for manufacturing automobile anticollision beam |
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