CN109486113A - A kind of basalt fiber cloth composite material automobile leaf spring and preparation method thereof - Google Patents
A kind of basalt fiber cloth composite material automobile leaf spring and preparation method thereof Download PDFInfo
- Publication number
- CN109486113A CN109486113A CN201811339356.2A CN201811339356A CN109486113A CN 109486113 A CN109486113 A CN 109486113A CN 201811339356 A CN201811339356 A CN 201811339356A CN 109486113 A CN109486113 A CN 109486113A
- Authority
- CN
- China
- Prior art keywords
- fiber cloth
- basalt fiber
- composite material
- leaf spring
- automobile leaf
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/345—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using matched moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/774—Springs
Abstract
The present invention relates to automotive light weight technology fields, it is related to a kind of elastic plate, specifically a kind of basalt fiber cloth composite material automobile leaf spring and preparation method thereof, a kind of basalt fiber cloth composite material automobile leaf spring are forming for 30%~40% polyurethane-modified epoxy resin and 60%~70% basalt fiber cloth by weight percent.The fabric elastic composite leaf springs of car of basalt fibre provided by the invention have the characteristics that high mechanical strength, do not crack, use temperature range is wide, it is fire-retardant it is smokeless, uvioresistant, weatherability, chemical corrosion resistance, moisture resistance are good, have the advantages that structurally reasonable, density is small simultaneously, it can reduce weight 60%~70% relative to conventional steel leaf springs of car, be suitable for light-weighted arc composite material for cars leaf spring.
Description
Technical field
The present invention relates to automotive light weight technology field, it is related to a kind of elastic plate, in particular to a kind of basalt fiber cloth is multiple
Condensation material leaf springs of car and preparation method thereof.
Background technique
Basalt fibre belongs to nonmetallic inorganic material, is 21 century energy-saving and environmental protection new material and free of contamination
" green industry material " is to be drawn using natural basalt ore through high-temperature fusion.Currently, gradually in the boat in China
It, automobile ship, petrochemical industry, weaponry, civil engineering traffic, energy conservation and environmental protection, firefighter uniform, the application of the fields such as sports equipment.
Traditional vehicle spring leaf spring is generally made of metal material, and the technique of existing composite material plate spring substantially has two
Kind: one is winding shaping process.By the tension and winding path that control glass fibre by the continuous glass of dipped resin adhesive liquid
Glass fiber passes through solidification, secondary operation, polishing, detection, forms product on to mould.Another kind is compression molding, work
Skill is that sheet prepreg first is made in glass fibre and matrix resin, by cutting, auxiliary material and preforming is prepared into prepreg
Have an effigurate green body, then through forming and hardening, polishing, detect, ultimately form product.Product made of above-mentioned technique has vertical
To cracking phenomena.Also useful carbon fiber does this elastic leaf springs, but carbon fiber price is expensive, and it is raw to be not suitable for big industry
It produces.How to solve above-mentioned technical problem becomes the direction that those skilled in the art make great efforts.
Summary of the invention
A kind of performance is provided it is an object of the invention to solve the deficiency of existing composite material plate spring based on problem above
Excellent and longitudinal indehiscent basalt fiber cloth vehicle spring leaf spring.
Another object of the present invention is to provide a kind of preparation methods of above-mentioned elastic leaf springs.
A further object of the present invention is to provide application of the above-mentioned elastic leaf springs on automotive composite material plate spring.
In order to solve the above technical problems, The technical solution adopted by the invention is as follows:
A kind of basalt fiber cloth composite material automobile leaf spring, including consisting of: epoxy resin, basalt fiber cloth.
As a preferred mode, the weight percent of epoxy resin is 30%~40%, the weight of basalt fiber cloth
Measuring percentage is 60%~70%.
As a preferred mode, for epoxy resin by polyurethane-modified, basalt fiber cloth is that plain weave enhances the Black Warrior
Rock fiber cloth.
A kind of preparation method of basalt fiber cloth composite material automobile leaf spring, comprising the following steps:
Step a, the preparation of prepreg cloth: by after coiled basalt fiber cloth uncoiling in glue groove epoxy resin-impregnated, then
Made-up belt is sent into the drying tunnel that can continuously bake, to remove the organic solvent in made-up belt, and carries out preliminary pre-polymerization, fabric drying is not glued
Go out drying tunnel after hand, winds, it is stand-by after passed examination.
Step b cuts out material: qualified prepreg fabric being cut into the size of needs, is put neat spare.
Step c, puts blank: by the requirement of products of different specifications, blank being stacked neatly.
Step d enters mould preheating: the blank for stacking neat being put into hot pressing die, cloth faces upward, and applies contact appropriate
Pressure, by blank holding, held for some time, in favor of heat transfer.Appropriate loosening pressure steam bleeding and continue to heat up after heat preservation.
Step e, hot-die are cured: increasing temperature and pressure suppresses adhesive plaster, observes the mobility status of glue, and glue mobility variation beats half
It presses, total pressure is beaten before gel, record the heat-insulation pressure keeping time.
Step f, demoulding: heat-insulation pressure keeping mould unloading after a certain period of time.
Step g, polishing: the molding after depanning needs to remove flash, and polishes smooth.Qualified through detection is finished product.
As a preferred mode, epoxy resin solids amount described in step a is 40%~60%, the asphalt mixtures modified by epoxy resin
Rouge is by polyurethane-modified.
As a preferred mode, the drying temperature for the drying tunnel that can be continuously baked described in step a be 40 DEG C of leading portion~
60 DEG C, 80 DEG C~100 DEG C of middle section, 110 DEG C~130 DEG C of back segment, control adhesive plaster volatile content is 2% and hereinafter, adhesive plaster glue contains
Amount is between 30%~40%.
As a preferred mode, basalt fiber cloth described in step a with a thickness of 0.10mm~0.30mm.
As a preferred mode, the temperature of hot pressing die described in step d is 90 DEG C~110 DEG C, and soaking time is
10 minutes.
As a preferred mode, molding temperature described in step e is 100 DEG C to 130 DEG C, molding pressure 5MPa
To 15MPa, the pressing time 20~40 minutes.
As a preferred mode, cooling and demolding temperature described in step f is for 130 DEG C and following.
Compared with prior art, the beneficial effects of the present invention are:
(1) present invention (while having radial fibre since the prepreg used (only radial fiber winding) is changed to prepreg cloth
Peacekeeping weft fiber), it avoids and does elastic leaf springs deficiency easy to crack with prepreg, made composite material automobile leaf spring is not opened
It splits, performance is good；
(2) present invention selects polyurethane-modified epoxy resin as adhesive, with the elasticity improvement asphalt mixtures modified by epoxy resin of polyurethane
Rouge solidify after brittleness, make its integrally curing object both steel and soft, to play the role of overcoming and adopting completely to epoxy resin roughening
With the deficiency of the easy embrittlement of epoxy resin；
(3) the previous composite material plate spring assembly of the present invention generally by composite body, grasswort, load box, rubber sheet gasket,
The components such as bolt form, and are linked together main body and grasswort in the present invention, thus optimize structure；
(4) supporting material basalt fiber cloth of the present invention is instead of glass fibre, many performances of elastic leaf springs obtained
It is more excellent, such as mechanical strength, high-low temperature resistant, weatherability, fire-retardant smokeless, uvioresistant, chemical corrosion resistance, moisture resistance；
(5) the density ratio steel of basalt fiber cloth prepreg solidfied material of the present invention are small by 3/4, elastic leaf springs weight obtained
It is the 1/3~1/5 of steel, can reduce 60%~70% in weight, can be used for composite material for cars leaf spring；
(6) the moulding compound pressing process that the present invention is combined using molding with lamination, collects two kinds of techniques a little, ensure that
The performance of product, such as the dimensionally stable that do not crack etc.；
(7) present invention use in, low temperature compacting, and in development process by original 200 DEG C, 2 hours solidification be reduced to
130 DEG C present, half an hour solidification, reduces solidification temperature, shortens curing time, saved the energy and time cost；
(8) automotive composite material plate spring anti-fatigue life made from basalt fiber cloth of the present invention is much higher than steel leaf spring and glass
The leaf spring of glass fiber cloth is far more than important finger as defined in national standard " GB/T 19844-2005 " especially for steel leaf spring
80,000 fatigue lives are marked, tool has very great significance.
Specific embodiment
The present invention is further illustrated below.Embodiments of the present invention include but is not limited to the following example.
Embodiment 1:
A kind of basalt fiber cloth composite material automobile leaf spring, the composition including following weight percent: 34% epoxy
Resin；66% basalt fiber cloth.
Epoxy resin is by polyurethane-modified.
Basalt fiber cloth is that plain weave enhances basalt fiber cloth.
A kind of preparation method of basalt fiber cloth composite material automobile leaf spring, comprising the following steps:
Step a, the preparation of prepreg cloth: by after coiled basalt fiber cloth uncoiling in glue groove epoxy resin-impregnated, then
Made-up belt is sent into the drying tunnel that can continuously bake, to remove the organic solvent in made-up belt, and carries out preliminary pre-polymerization, fabric drying is not glued
Go out drying tunnel after hand, winds, it is stand-by after passed examination.
Step b cuts out material: qualified prepreg fabric being cut into the size of needs, is put neat spare.
Step c, puts blank: by the requirement of products of different specifications, blank being stacked neatly.
Step d enters mould preheating: being put into neat blank is stacked in 105 DEG C of hot pressing die, cloth faces upward, and applies suitable
When contact pressure blank holding is kept the temperature 10 minutes, in favor of heat transfer.Appropriate loosening pressure steam bleeding and continue towards 130 after heat preservation
DEG C heating.
Step e, hot-die are cured: increasing temperature and pressure suppresses adhesive plaster, observes the mobility status of glue, and glue mobility variation beats half
It presses, total pressure is beaten before gel, record the heat-insulation pressure keeping time.
Step f, demoulding: mould unloading after the heat-insulation pressure keeping time.
Step g, polishing: the molding after depanning needs to remove flash, and polishes smooth.Qualified through detection is finished product.
Epoxy resin solids amount in step a is 52%, and epoxy resin is by polyurethane-modified.
The drying temperature for the drying tunnel that can continuously bake in step a is 50 DEG C of leading portion, and 90 DEG C of middle section, 120 DEG C of back segment, adhesive plaster is waved
Sending out object content is 1.2%, and adhesive plaster glue content is 36%.
Basalt fiber cloth in step a with a thickness of 0.20mm.
Molding temperature in step e is 130 DEG C, molding pressure 13MPa, the pressing time 30 minutes.
Cooling and demolding temperature in step f is 130 DEG C or less.
Basalt fiber cloth or band (through having reinforcement to broadwise), and basalt fibre has many property better than glass fibre
Energy.The service life of composite material elastic leaf springs can be increased；It selects polyurethane-modified epoxy resin as adhesive, uses polyurethane
Elastic modified epoxy resin solidify after brittleness, make its integrally curing object both steel and soft, to play to epoxy resin roughening
Effect.
Embodiment 2:
A kind of basalt fiber cloth composite material automobile leaf spring, the composition including following weight percent: 37% epoxy
Resin；63% basalt fiber cloth.
Epoxy resin is by polyurethane-modified.
Basalt fiber cloth is that plain weave enhances basalt fiber cloth.
A kind of preparation method of basalt fiber cloth composite material automobile leaf spring, comprising the following steps:
Step a, the preparation of prepreg cloth: by after coiled basalt fiber cloth uncoiling in glue groove epoxy resin-impregnated, then
Made-up belt is sent into the drying tunnel that can continuously bake, to remove the organic solvent in made-up belt, and carries out preliminary pre-polymerization, fabric drying is not glued
Go out drying tunnel after hand, winds, it is stand-by after passed examination.
Step b cuts out material: qualified prepreg fabric being cut into the size of needs, is put neat spare.
Step c, puts blank: by the requirement of products of different specifications, blank being stacked neatly.
Step d enters mould preheating: being put into neat blank is stacked in 110 DEG C of hot pressing die, cloth faces upward, and applies suitable
When contact pressure blank holding is kept the temperature 10 minutes, in favor of heat transfer.Appropriate loosening pressure steam bleeding and continue towards 130 after heat preservation
DEG C heating.
Step e, hot-die are cured: during increasing temperature and pressure suppresses adhesive plaster, observing the mobility status of glue, glue mobility is deteriorated
It beats half to press, total pressure is beaten before gel, record the heat-insulation pressure keeping time.
Step f, demoulding: mould unloading after the heat-insulation pressure keeping time.
Step g, polishing: the molding after depanning needs to remove flash, and polishes smooth.Qualified through detection is finished product.
Epoxy resin solids amount in step a is 50%, and epoxy resin is by polyurethane-modified.
The drying temperature for the drying tunnel that can continuously bake in step a is 60 DEG C of leading portion, 100 DEG C of middle section, 130 DEG C of back segment, adhesive plaster
Volatile content is 0.9%, and adhesive plaster glue content is 37%.
Basalt fiber cloth in step a with a thickness of 0.14mm.
Molding temperature in step e is 130 DEG C, molding pressure 14MPa, the pressing time 32 minutes.
Cooling and demolding temperature in step f is for 130 DEG C and following.
Comparison one:
The compound leaf spring of basalt fibre automobile is prepared in Example 1 to 2 respectively takes 5, takes the steel of conventional vehicle
Leaf spring 5, carry out the comparison of density mean values.
| Density | |
| Basalt fiber cloth composite material plate spring | 2.0g/cm3 |
| Steel leaf spring | 7.9g/cm3 |
The density that can be seen that steel from above-mentioned correlation data is 3.95 times of basalt composite material.In practical application
In, it is such as used in the light-duty logistic car steel leaf spring weight 19.8kg in city, composite material plate spring weight 5.7kg mitigates weight 14.1kg, the Black Warrior
Rock fiber cloth composite material plate spring can reduce 71.2% in weight.
Comparison two:
1 prepreg cloth of Example is made pressing plate 100mm × 100mm × 2mm 5 by the pressing process of embodiment 1 and opens, then takes
The steel plate 5 of same specification rises, and is placed under outdoor elements (such as solarization drenches with rain, humidity) storage half a year, surveys its mass loss
It see the table below:
| Contrast material | Mass loss (%) |
| Basalt fiber cloth composite panel | 0.8 |
| Steel plate | 11.2 |
The weatherability and moisture resistance that can be seen that basalt fiber cloth composite panel from above-mentioned correlation data are better than steel plate.
Comparison three:
Fiber cloth material is changed to the glass fabric of 0.14mm by basalt fiber cloth into, other materials is constant, by implementation
The technical process of example 2 makes glass fabric composite material plate spring, two kinds of composite material plate springs and steel leaf spring (national standard " GB/
T19844-2005 ") endurance number see the table below:
In conclusion the automotive composite material plate spring made from basalt fiber cloth compared with steel leaf spring, can mitigate weight
Amount 70% is conducive to the cruising ability for improving automobile, and moisture resistance, weatherability are conducive to improve leaf spring also superior to steel leaf spring
Service life.In addition automotive composite material plate spring anti-fatigue life made from basalt fiber cloth is much higher than steel leaf spring and glass
The leaf spring of fiber cloth is far more than important indicator as defined in national standard " GB/T 19844-2005 " especially for steel leaf spring
80000 fatigue lives, tool have very great significance.Furthermore the fabric automotive composite material plate spring of basalt fibre also has machine
Tool intensity is high, do not crack, temperature use scope is wide, fire-retardant smokeless, uvioresistant, weatherability, chemical corrosion resistance, humidity resistance
Good feature.
It as above is the embodiment of the present invention.Design parameter in above-described embodiment and embodiment is merely to understand table
Invention verification process is stated, the scope of patent protection being not intended to limit the invention, scope of patent protection of the invention is still with it
It is all with equivalent variations made by specification of the invention subject to claims, it similarly should be included in guarantor of the invention
It protects in range.
Claims (10)
1. a kind of basalt fiber cloth composite material automobile leaf spring, it is characterised in that: including following components: epoxy resin, the Black Warrior
Rock fiber cloth.
2. a kind of basalt fiber cloth composite material automobile leaf spring according to claim 1, it is characterised in that: the epoxy
The weight percent of resin is 30%~40%, and the weight percent of the basalt fiber cloth is 60%~70%.
3. a kind of described in any item basalt fiber cloth composite material automobile leaf springs, feature exist according to claim 1~2
In: the epoxy resin is by polyurethane-modified.
4. a kind of preparation method of basalt fiber cloth composite material automobile leaf spring, it is characterised in that: the following steps are included:
Step a, the preparation of prepreg cloth: by after coiled basalt fiber cloth uncoiling in glue groove epoxy resin-impregnated, then by band
Base is sent into the drying tunnel that can continuously bake, and to remove the organic solvent in made-up belt, and carries out preliminary pre-polymerization, after fabric drying is tack-free
Drying tunnel out is wound, stand-by after passed examination.
Step b cuts out material: qualified prepreg fabric being cut into the size of needs, is put neat spare.
Step c, puts blank: by the requirement of products of different specifications, blank being stacked neatly.
Step d enters mould preheating: the blank for stacking neat is put into hot pressing die, and cloth faces upward, and applies contact pressure appropriate,
By blank holding, held for some time, in favor of heat transfer.Appropriate loosening pressure steam bleeding and continue to heat up after heat preservation.
Step e, hot-die are cured: increasing temperature and pressure suppresses adhesive plaster, observes the mobility status of glue, and glue mobility variation is beaten half and pressed, coagulates
Total pressure is beaten before glue, records the heat-insulation pressure keeping time.
Step f, demoulding: heat-insulation pressure keeping mould unloading after a certain period of time.
Step g, polishing: the molding after depanning needs to remove flash, and polishes smooth.Qualified through detection is finished product.
5. a kind of preparation method of basalt fiber cloth composite material automobile leaf spring according to claim 4, feature exist
In: epoxy resin solids amount described in step a is 40%~60%, and the epoxy resin is by polyurethane-modified.
6. a kind of preparation method of basalt fiber cloth composite material automobile leaf spring according to claim 5, feature exist
In: the drying temperature for the drying tunnel that can continuously bake described in step a is 40 DEG C~60 DEG C of leading portion, 80 DEG C~100 DEG C of middle section, back segment
110 DEG C~130 DEG C, control adhesive plaster volatile content 2% and hereinafter, adhesive plaster glue content be 30%~40% between.
7. a kind of preparation method of basalt fiber cloth composite material automobile leaf spring according to claim 6, feature exist
In: basalt fiber cloth described in step a with a thickness of 0.10mm~0.30mm.
8. according to a kind of described in any item preparation methods of basalt fiber cloth composite material automobile leaf spring of claim 4~7,
It is characterized by: the temperature of hot pressing die described in step d is 90 DEG C~110 DEG C, soaking time is 10 minutes.
9. according to a kind of described in any item preparation methods of basalt fiber cloth composite material automobile leaf spring of claim 4~7,
It is characterized by: molding temperature described in step e is 100 DEG C to 130 DEG C, molding pressure is 5MPa to 15MPa, pressing time
20~40 minutes.
10. according to a kind of described in any item preparation sides of basalt fiber cloth composite material automobile leaf spring of claim 4~7
Method, it is characterised in that: cooling and demolding temperature described in step f is 130 DEG C or less.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811339356.2A CN109486113A (en) | 2018-11-12 | 2018-11-12 | A kind of basalt fiber cloth composite material automobile leaf spring and preparation method thereof |
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| CN201811339356.2A CN109486113A (en) | 2018-11-12 | 2018-11-12 | A kind of basalt fiber cloth composite material automobile leaf spring and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109483909A (en) * | 2018-12-24 | 2019-03-19 | 吉林省华阳新材料研发有限公司 | A kind of plate spring for vehicle and its processing technology |
| CN111497281A (en) * | 2020-05-28 | 2020-08-07 | 武汉海威船舶与海洋工程科技有限公司 | Thermoplastic composite plate spring and manufacturing method thereof |
| CN112590322A (en) * | 2020-12-14 | 2021-04-02 | 天津摩力工业设计有限公司 | Method for manufacturing insulating plate by using basalt fibers |
| CN114539718A (en) * | 2022-02-28 | 2022-05-27 | 山东莱蔚特复合材料有限责任公司 | Preparation method of mould pressing composite material plate spring |
| CN114855456A (en) * | 2022-06-08 | 2022-08-05 | 德阳科吉高新材料有限责任公司 | Technological treatment method for coating thermoplastic elastomer on surface of basalt fiber cloth |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109483909A (en) * | 2018-12-24 | 2019-03-19 | 吉林省华阳新材料研发有限公司 | A kind of plate spring for vehicle and its processing technology |
| CN111497281A (en) * | 2020-05-28 | 2020-08-07 | 武汉海威船舶与海洋工程科技有限公司 | Thermoplastic composite plate spring and manufacturing method thereof |
| CN112590322A (en) * | 2020-12-14 | 2021-04-02 | 天津摩力工业设计有限公司 | Method for manufacturing insulating plate by using basalt fibers |
| CN114539718A (en) * | 2022-02-28 | 2022-05-27 | 山东莱蔚特复合材料有限责任公司 | Preparation method of mould pressing composite material plate spring |
| CN114539718B (en) * | 2022-02-28 | 2024-01-26 | 山东莱蔚特复合材料有限责任公司 | Preparation method of die-pressed composite plate spring |
| CN114855456A (en) * | 2022-06-08 | 2022-08-05 | 德阳科吉高新材料有限责任公司 | Technological treatment method for coating thermoplastic elastomer on surface of basalt fiber cloth |
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