CN105600280B - High abrasion shock resistance aramid fiber core conveyer belt and its production technology - Google Patents
High abrasion shock resistance aramid fiber core conveyer belt and its production technology Download PDFInfo
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- CN105600280B CN105600280B CN201510973483.8A CN201510973483A CN105600280B CN 105600280 B CN105600280 B CN 105600280B CN 201510973483 A CN201510973483 A CN 201510973483A CN 105600280 B CN105600280 B CN 105600280B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/30—Belts or like endless load-carriers
- B65G15/32—Belts or like endless load-carriers made of rubber or plastics
- B65G15/34—Belts or like endless load-carriers made of rubber or plastics with reinforcing layers, e.g. of fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/02—Layered products comprising a layer of natural or synthetic rubber with fibres or particles being present as additives in the layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/554—Wear resistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2433/00—Closed loop articles
- B32B2433/02—Conveyor belts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Belt Conveyors (AREA)
Abstract
The present invention relates to a kind of conveyer belt, is specifically related to a kind of high abrasion shock resistance aramid fiber core conveyer belt and its production technology.It is made up of aramid fiber canvas casing play, shock resistance anti-tearing cushion, upper and lower covering glue layer and side glue-line, and the upper and lower sides of aramid fiber canvas casing play are provided with shock resistance anti-tearing cushion；Between aramid fiber canvas casing play and shock resistance anti-tearing cushion, between adjacent shock resistance anti-tearing cushion, between shock resistance anti-tearing cushion and upper and lower covering glue layer and side glue-line by bonding glue bond and shape is integral after over cure；For aramid fiber canvas for directly through straight latitude structure, its warp-wise is straight aramid fiber, the compound cotton rope of nylon66 fiber by the line of force, and certain proportion, which closes, after aramid fiber strand, nylon66 fiber strand twisting is twisted compound cotton rope.The band body pliability of high abrasion shock resistance aramid fiber core conveyer belt is appropriate, impact resistance enhancing.Increase shock resistance anti-tearing cushion, the application environment shock resistance requirement of different impacts can be met.
Description
Technical field
The present invention relates to a kind of conveyer belt, is specifically related to a kind of high abrasion shock resistance aramid fiber core conveyer belt and its production work
Skill, it is particularly a kind of using the directly high abrasion shock resistance aramid fiber core conveyer belt through straight latitude aramid fiber canvas as tensile layer.
Background technology
Conveyer conveying is a kind of most economical mode of movement, therefore achieves and be widely applied in all trades and professions.Conveying
The basic demand of machine auxiliary conveyor system is to use efficient, easy to maintenance, safe and reliable, energy-conserving and environment-protective.Because application environment is different,
The belt carcass material of conveyer belt is different with the performance requirement of rubber cover.Traditional conveyer belt framework material is using polyester as by the line of force
EP, EE canvas and conveyer belt is layered as the NN nylon canvas by the line of force using nylon 6, nylon66 fiber, accounts for total dosage more than 50%, it is heavy
Adhesive tape is mainly based on steel cord conveyor belt.For some large conveying quantities, HI high impact, conveying material is hard, transportation range is long and has
The changeable transportation environments such as turning climbing, all there is serious deficiency for the adhesive tape of two types.Layering adhesive tape band body is light, shock resistance
Performance is good, but long-term use of easily layering, and creep elongation is big, poor dimensional stability, is influenceed by the strength of materials, and band is strong more than 2000N/
Mm core bodys are too thick to be caused groove forming character difference and can not use, and service life is short.Steel wire rope rubber band strength is big, stability is good, but steel wire
The band body weight of rope conveyer belt, energy expenditure is big, is impacted the yielding braking effect intensity of steel wire rope for a long time by material, and broadwise is exoskeletal
Tear strips, long-term use of steel wire rope easy-to-rust broken belt, joint time length, larger is required to drive roller diameter.
It is that high intensity, high-modulus, density are small that aramid fiber, which has the characteristics of best combination property, most prominent,；Its surface
Intensity is 5~7 times, more than 2 times of general organic chemical fibres of steel up to more than 20.0CN/dtex；Density and common flower
Fine and it makes no odds, individual layer aramid fiber are that frame strength can reach 4000N/mm, can meet high, medium and low varying strength requirement.
Heat resistance is good, and under 130 DEG C of environmental condition, the loss late of intensity can be ignored, can be normal under conditions of 250 DEG C
Use, more than 500 DEG C just start to decompose.Toughness is 3 times of reinforcing glass fiber, ingrain fireproofing, the chemicals such as water-fast and soda acid
Corrosion.It is thin using the aramid fiber aramid fiber core conveyer belt elongation small, good stability of the dimension compacted as skeleton, core thickness, it can be applied to big
The complicated transport places such as freight volume, long range, high inclination-angle and curving movement.Aramid fiber skeleton is high, antifatigue with the bonding force of rubber
Property it is good, operation kinetic energy consumption less, simple in construction, joint is easy, service life length, be manufacture the preferable skeleton of high-performance conveyer belt
Material.Aramid cord has been applied widely in industries such as transmission belt, high-performance tire, high-pressure rubber pipes.Conveyer belt conveys thing
Doses is big, it is desirable to which the intensity of framework material is high.Due to the compression and fatigue resisting poor-performing of aramid fiber, it is impossible to using multiple-layer stacked
Improve intensity.Conveying circuit is longer, has certain regulation surplus but desired size stability is good.Therefore expensive virtue is utilized
Synthetic fibre is skeleton, it is important to by structure design, formula design, Design Processing, improve adhesive tape items physical and mechanical properties and
Whole matching, the premium properties of aramid fiber material is made full use of, overcome unfavorable factor, improve aramid fiber conveying belt to greatest extent
Service life.
The content of the invention
For technical problem present in prior art, it is an object of the invention to provide a kind of high abrasion shock resistance aramid fiber
Core conveyer belt and its production technology, by reasonable selection framework material, design optimization core, bond glue-line and covering glue layer
Formula design, Design Processing improve adhesive tape items physical and mechanical properties and whole matching, meet that HI high impact is strong wear-resisting defeated
Send performance requirement of the environment to aramid fiber conveying belt.
To achieve these goals, the technical solution adopted in the present invention is：A kind of high abrasion shock resistance aramid fiber core conveying
Band, it is made up of aramid fiber canvas casing play, shock resistance anti-tearing cushion, upper and lower covering glue layer and side glue-line, aramid fiber canvas bone
The upper and lower sides of rack-layer are respectively arranged with shock resistance anti-tearing cushion；Aramid fiber canvas casing play and shock resistance anti-tearing cushion it
Between, between adjacent shock resistance anti-tearing cushion, between shock resistance anti-tearing cushion and upper and lower covering glue layer and side glue-line lead to
Cross bonding glue bond and shape is integral after over cure；Aramid fiber canvas is directly through straight latitude structure, its warp-wise is straight by the line of force
The compound cotton rope of aramid fiber, nylon66 fiber, certain proportion closes and is twisted compound cotton rope after aramid fiber strand, nylon66 fiber strand twisting.
Nylon66 fiber strand and aramid fiber strand have good compatibility to impregnation slurry, and compound cotton rope is more conducive to dipping solution pair
Dipping, infiltration inside aramid filament.Nylon66 fiber strand does not undertake conveyance tension, and main function is to reduce between aramid cord strand
Mutually compression, abrasion, the defects of overcoming aramid fiber incompressible fatigability difference.The elastic performance of compound cotton rope is more preferable, Ke Yiti
High anti-material impact performance.Because the compound cotton rope of aramid fiber is in straightened condition, the intensity of aramid fiber is fully used.Recombination line
Rope has more preferable fatigue resistance, suitable elongation, controlled percent thermal shrinkage and dimensional stability compared with pure aramid cord,
Higher cost performance.The broadwise line of the straight latitude Composite aramid fiber canvas of diameter uses nylon66 fiber strand, in two faces of warp-wise cotton rope, passes through
Thin nylon66 fiber warp-wise connecting line shuttles up and down connects into an entirety footpath, parallel.Broadwise line protects warp-wise aramid fiber in two faces
Compound cotton rope.Because the skeleton of stress only has one layer, core body is very light and pliability is especially good, and flexible folding is antifatigue
Property run through conveyer belt whole life cycle.Band body, which can resist various chemical reactions well, to be influenceed, and will not be corroded by water etc.
Or rot, the service life of conveyer belt can be improved to greatest extent.
Shock resistance anti-tearing cushion is the straight burr or twill nylon66 fiber cord fabric laterally set, in order to further
The shock resistance of adhesive tape is improved, while anti-tear effect can be played.Upper covering glue layer is working face, same to material directly contact,
According to the size of impulsive force, 1~3 layer of shock resistance anti-tearing cushion can be set, lower covering glue layer is then arranged to 1 layer.
Adhesive rubber ensures aramid fiber skeleton and shock resistance anti-tearing cushion, shock resistance anti-tearing cushion between rubber cover
With enough bonding forces, ensure not delamination in the whole life cycle of products application.Require that flexion internal stress is low, resistance to anti-simultaneously
Multiple flexural fatigue.Count, be made up of the following raw material in parts by weight：30~50 parts of natural two sections of rubber, 70~50 parts of butylbenzene 1500,
1~2 part of antioxidant 4010 Na, 1~2 part of anti-aging agent RD, 3~8 parts of zinc oxide, 1~3 part of stearic acid, 25~35 parts of N330 carbon blacks,
10~15 parts of white carbons, 5~10 parts of terpene resins, 5~15 parts of environment-friendly type aromatic naphtha, 2~5 parts of adhesive PM-18,0.5~1.2
Part accelerant NOBS, 1.5~2.5 parts of Sulfurs.
Rubber cover requires wear-resisting, shock resistance, cut resistant, can protect the aramid fiber canvas casing play of costliness well.Overlying
Lid glue, lower rubber cover, side glue use formula of the same race, count, are made up of the following raw material in parts by weight：50~65 natural one section of rubber
Glue, 50~35 parts of butadiene rubbers, the chopped fine pre-dispersed material of 3~5 parts of aramid fibers, 1~2 part of antioxidant 4010 Na, 1~2 part of age resistor
RD, 0.5~2 part of microcrystalline wax, 3~7 parts of zinc oxide, 1~3 part of stearic acid, 40~70 parts of N234 carbon blacks, 0.5~2 part scattered
Agent, 5~10 parts of paraffin oils, 0.5~1.5 part of accelerant CZ, 0.2~0.8 part of altax, 1.2~2 parts of sulphur.
The production technology of the high abrasion shock resistance aramid fiber core conveyer belt of the present invention, step are as follows：
First, refining glue
(1), adhesive glue is kneaded：Plasticity of plasticating is added by weight up to 0.6~0.8 natural rubber and butadiene-styrene rubber, is mixed
Refining 60 seconds, add zinc oxide, stearic acid, antioxidant 4010 Na, anti-aging agent RD, terpene resin, adhesive PM-18 and be kneaded 30 seconds,
Carbon black, white carbon, environment-friendly aromatic oil are added, is kneaded to 135 DEG C of dumpings；Banbury is put into again after parking 8 hours, is kneaded to 60
DEG C, accelerant NOBS, sulphur are added, low speed is kneaded to 95 DEG C of dumpings, tabletting and received after parking 24 hours；
(2), rubber cover is kneaded：Naturally, the short pre-dispersed material of fibre of butadiene rubber, aramid fiber, it is kneaded 60 seconds, addition zinc oxide,
N234 carbon blacks, it is kneaded to 160 DEG C of dumpings；Mixer mixing is put into after parking 8 hours 75 seconds, add stearic acid, age resistor
4010Na, anti-aging agent RD, dispersant, microcrystalline wax, paraffin oil, it is kneaded to 140 DEG C of dumpings；Put into again after parking 8 hours close
Mill is kneaded to 60 DEG C, adds accelerant CZ, altax, sulphur, low speed is kneaded to 95 DEG C of dumping tablettings, after parking 24 hours
Receive；
2nd, calendering formation
(1) it is in four rod calenders that diameter is straight through cold feed extruder filter glue, heat refining after, adhesive rubber parks 24 hours
Latitude Composite aramid fiber canvas, the surface pressure rubberizing of shock resistance anti-tearing cushion two；Rubberizing pressure suitably increases, and improves sizing material to skeleton
Penetration degree；
(2) the straight latitude Composite aramid fiber canvas of diameter, the shock resistance anti-tearing cushion, after rubberizing are compound；Use covering sizing material
Side glue is extruded, the compound good face welt glue of belt carcass two, parks 4~8 hours and fits over glue；
(3), rubber cover is adjusted to the rubber cover needed after cold feed extruder filter glue and abundant heat refining on calender
Thickness, the belt carcass of forming, directly against upper and lower covering rubber is closed, park after cure in 8 hours on calender；
3rd, vulcanize
Band embryo is not required to stretch pot vulcanization, and conditions of vulcanization is：142~145 DEG C of curing temperature, sulfide stress 3.0~
3.5MPa；After band embryo dress pot, first make high pressure and preheat 2~3 minutes, fall pot exhaust, then make high pressure and normally vulcanize, cure time
(min)=20+1.1 × tape thickness (mm).
The high abrasion shock resistance aramid fiber core conveyer belt and its production technology, its advantage of the present invention is shown：
(1) the use of aramid fiber, the compound cotton rope of nylon66 fiber is warp-wise by the straight latitude aramid fiber canvas of diameter of the line of force it is, skeleton, skeleton
Layer straight burr setting up and down or twill nylon66 fiber cord fabric shock resistance anti-tearing cushion, additional high abrasion shock resistance rubber cover, bone
Rack-layer buffers interlayer together, cushion is pasted between rubber cover by adhesive rubber, and an entirety is bonded into after vulcanization, is suitable for height
Wear-resisting, shock resistance requirement application demand.The elastic performance of compound cotton rope is more preferable, can improve anti-material impact performance.Anti-impact
The shock resistance of adhesive tape can further be improved by hitting anti-tear cushion, while can play anti-tear effect.Covering glue layer is resistance to
Shock resistance is ground, increases the belt cutting-resisting property of rubber cover by adding aramid short fiber.Overall wear resistant and impact resistant performance is strengthened, together
When there is more preferable fatigue resistance, suitable elongation, controlled percent thermal shrinkage and dimensional stability, good troughability.
(2), due to having selected specific framework material, band body pliability is appropriate, impact resistance enhancing.Increase shock resistance
Anti-tear cushion, the application environment shock resistance requirement of different impacts can be met.The bonding force of adhesive rubber is big, to skeleton
The penetrating power of material is strong, and dynamic property is good, ensures the globality of the whole life cycle of adhesive tape.
(3) it is good, to cover the wear resistant and impact resistant performance of sizing material, by adding the short pre-dispersed material of fibre of aramid fiber, by rolling orientation,
The belt cutting-resisting property of rubber cover improves, and three-stage mixing compounding ingredient dispersing uniformity is good, and rubber strength increases, and anti-wear performance and resistance to bends
Scratch performance raising.
Brief description of the drawings
Fig. 1 is the structural representation of the high abrasion shock resistance aramid fiber core conveyer belt of the present invention.
In Fig. 1,1, side glue-line, 3, upper covering glue layer, 4, lower covering glue layer, 5, aramid fiber canvas casing play, 6, shock resistance prevents
Tear cushion, 7, bonding glue-line.
Embodiment
To further describe the high abrasion shock resistance aramid fiber core conveyer belt of the present invention and its production technology, below in conjunction with the accompanying drawings
It is described further.
Embodiment 1
A kind of high abrasion shock resistance aramid fiber core conveyer belt shown in Fig. 1, by aramid fiber canvas casing play 5, shock resistance anti-tearing
Cushion 6, upper covering glue layer 3, lower covering glue layer 4 and side glue-line 1 are formed, and the upside of aramid fiber canvas casing play 5 is provided with two
Layer shock resistance anti-tearing cushion 6, the downside of aramid fiber canvas casing play 5 is provided with one layer of shock resistance anti-tearing cushion 6；Aramid fiber
Between canvas casing play 5 and shock resistance anti-tearing cushion 6, between adjacent shock resistance anti-tearing cushion 6, anti-tear cushion
6 and pass through adhesive glue (in the conveyer belt structure after shaping be bonding glue-line 7) bonding between covering glue layer and side glue-line up and down
And shape is integral after over cure.
Embodiment 2
High abrasion shock resistance aramid fiber conveying belt specification 1250N/mm-1000mm (6+3), include the straight latitude aramid fiber sail of diameter
Cloth, shock resistance anti-tearing cushion, adhesive rubber glue-line, high abrasion shock resistance covering glue layer.Wherein：The straight latitude virtue of described diameter
Synthetic fibre warp yarn aramid fiber 3360dtex × 2 Z90 × 4S70+1880 dtex nylon66 fibers × 2 Z60 × 1S70, i.e. Grain lines aramid fiber
First twisted filament 3360dtex × 2, the twist (Z) 90, first dtex × 2 of twisted filament 1880 of nylon66 fiber, the twist (Z) 60, retwist is 4 strands of aramid fibers
First twist strand adds 1 strand of nylon66 fiber strand, the retwist twist (S) 70,44/dm of density.Dtex × 6 of nylon66 fiber broadwise line 1880
Z60,32/dm of density.2200 dtex of nylon66 fiber connecting line × 1Z100,88/dm of density.Aramid fiber canvas thickness 2.8mm, it is single
Position area weight 1.9kg/m2。
Individual layer shock resistance anti-tearing cushion is used up and down.
Adhesive glue formula, by weight：60 parts of natural rubber, 40 parts of butadiene-styrene rubber, antioxidant 4010 Na1.5 parts, prevent
Old agent RD1.5 parts, 6 parts of zinc oxide, 2 parts of stearic acid, 32 parts of N330 carbon blacks, 12 parts of white carbon, 7 parts of terpene resin, environment-friendly type virtue
10 parts of hydrocarbon ils, 3.5 parts of PM-18 adhesives, 1 part of accelerant NOBS, 1.8 parts of Sulfur.
Rubber cover and side glue formula, by weight：Natural 52 parts of one section of rubber, 48 parts of butadiene rubber, aramid fiber are short fine pre-
4 parts of disperse materials, antioxidant 4010 Na2 parts, 1 part of anti-aging agent RD, 1 part of microcrystalline wax, 4 parts of zinc oxide, 2.5 parts of stearic acid, N234
65 parts of carbon black, 0.6 part of dispersant, 8 parts of paraffin oil, 0.7 part of accelerant CZ, 0.5 part of altax, 1.6 parts of sulphur.
According to following technique productions：
First, refining glue
(1), adhesive glue is kneaded：Plasticity of plasticating is added by weight up to 0.6~0.8 natural rubber and butadiene-styrene rubber, is mixed
Refining 60 seconds, add zinc oxide, stearic acid, antioxidant 4010 Na, anti-aging agent RD, terpene resin, adhesive PM-18 and be kneaded 30 seconds,
Carbon black, white carbon, environment-friendly aromatic oil are added, is kneaded to 135 DEG C of dumpings；Banbury is put into again after parking 8 hours, is kneaded to 60
DEG C, accelerant NOBS, sulphur are added, low speed is kneaded to 95 DEG C of dumpings, tabletting and received after parking 24 hours；
(2), rubber cover is kneaded：Naturally, the short pre-dispersed material of fibre of butadiene rubber, aramid fiber, it is kneaded 60 seconds, addition zinc oxide,
N234 carbon blacks, it is kneaded to 160 DEG C of dumpings；Mixer mixing is put into after parking 8 hours 75 seconds, add stearic acid, age resistor
4010Na, anti-aging agent RD, dispersant, microcrystalline wax, paraffin oil, it is kneaded to 140 DEG C of dumpings；Put into again after parking 8 hours close
Mill is kneaded to 60 DEG C, adds accelerant CZ, altax, sulphur, low speed is kneaded to 95 DEG C of dumping tablettings, after parking 24 hours
Receive；
2nd, calendering formation
(1) it is in four rod calenders that diameter is straight through cold feed extruder filter glue, heat refining after, adhesive rubber parks 24 hours
Latitude Composite aramid fiber canvas, the surface pressure rubberizing of shock resistance anti-tearing cushion two；Rubberizing pressure suitably increases, and improves sizing material to skeleton
Penetration degree；
(2) the straight latitude Composite aramid fiber canvas of diameter, the shock resistance anti-tearing cushion, after rubberizing are compound；Use covering sizing material
Side glue is extruded, the compound good face welt glue of belt carcass two, parks 4~8 hours and fits over glue；
(3), rubber cover is adjusted to the rubber cover needed after cold feed extruder filter glue and abundant heat refining on calender
Thickness, the belt carcass of forming, directly against upper and lower covering rubber is closed, park after cure in 8 hours on calender；
3rd, vulcanize
Band embryo is not required to stretch pot vulcanization, and conditions of vulcanization is：142~145 DEG C of curing temperature, sulfide stress 3.0~
3.5MPa；After band embryo dress pot, first make high pressure and preheat 2~3 minutes, fall pot exhaust, then make high pressure and normally vulcanize, cure time
(min)=20+1.1 × tape thickness (mm).
The performance test results of products obtained therefrom are shown in Table 1：
Table 1 1250N/mm-1000mm (6+3) high abrasion shock resistance aramid fiber conveying belt performance
The data explanation of table 1：The through thickness longitudinal direction elongation rate of tensile failure of 1250N/mm bands only has 3.8%, illustrates to use at full capacity
Elongation is small, can meet long-distance transportation demand；Bonding strength is high, ensure that the entirety in the whole life cycle of conveyer belt
Property；60 ° of side carrying roller groove profile angle grooving degree is high, can meet the special transport places demand such as high inclination-angle；The intensity of rubber cover and resistance to
It is good to grind performance, the abrasion of adhesive tape rubber cover can be avoided to cause adhesive tape to damage premature failure, high abrasion is improved to greatest extent and resist
Impact the service life of aramid fiber conveying belt.
Embodiment 3
High abrasion shock resistance aramid fiber conveying belt specification 2500N/mm-1400mm (9+4), the straight latitude aramid fiber warp yarn virtue of diameter
3360 dtex of synthetic fibre × 9Z40 × 3S40+1880 dtex nylon66 fibers × 5 Z60 × 1S40, i.e. Grain lines aramid fiber just twisted filament
3360dtex × 9, the twist (Z) 40, first twisted filament 1880dtex × 5 of nylon66 fiber, the twist (Z) 60, retwist is 3 strands of aramid fiber first twist strands
Add 1 strand of nylon66 fiber strand, the retwist twist (S) 40,22/dm of density.Broadwise line 1880dtex nylon66 fibers × 9Z60, density 32
Root/dm.Connecting line 3300dtex nylon66 fibers × 1Z100,44/dm of density.Aramid fiber canvas thickness 3.2mm, weight per unit area
1.94.6kg/m2, upper rubber cover side uses two layers of shock resistance cushion, and 45 degree of the centerline dip with band is staggeredly placed.Under cover
Lid glue side uses individual layer shock resistance cushion, is laterally disposed vertically with casing play.Rubber cover and adhesive glue formula with embodiment 2,
The performance detection of conveyer belt is shown in Table 2：
Table 2 2500N/mm-1400mm (9+4) high abrasion shock resistance aramid fiber conveying belt performance
The data explanation of table 2：Reinforced belt in 2500N/mm, the through thickness longitudinal direction elongation rate of tensile failure of band is 4.2%, compared with
The full elongation rate of tensile failure of aramid fiber 3% of warp-wise suitably increases, and rigidity reduces, pliability increase, the fatigue performance enhancing of band.High groove profile
Grooving degree under angle is still very high, the defects of avoiding multiple layers of high strength adhesive tape groove forming character difference；The bonding strength of band is high, rubber cover
Intensity and anti-wear performance it is good, overall performance is good.
Above content is only to design example and explanation of the invention, affiliated those skilled in the art
Various modifications or supplement are made to described specific embodiment or is substituted using similar mode, without departing from invention
Design or surmount scope defined in the claims, protection scope of the present invention all should be belonged to.
Claims (1)
- A kind of 1. production technology of high abrasion shock resistance aramid fiber core conveyer belt, it is characterised in thatHigh abrasion shock resistance aramid fiber core conveyer belt is by aramid fiber canvas casing play, shock resistance anti-tearing cushion, upper and lower covering glue layer And side glue-line is formed, the upside of aramid fiber canvas casing play sets 1~3 shock resistance anti-tearing cushion, aramid fiber canvas skeleton The downside of layer sets 1 shock resistance anti-tearing cushion；Between aramid fiber canvas casing play and shock resistance anti-tearing cushion, it is adjacent Pass through adhesive glue between shock resistance anti-tearing cushion, between shock resistance anti-tearing cushion and upper and lower covering glue layer and side glue-line Bond and shape is integral after over cure；It is directly straight aramid fiber, nylon by the line of force through straight latitude structure, its warp-wise that aramid fiber canvas, which is, 66 compound cotton ropes, certain proportion closes and is twisted compound cotton rope after aramid fiber strand, nylon66 fiber strand twisting；Adhesive glue is counted in parts by weight, is made up of the following raw material：30~50 parts of natural two sections of rubber, 70~50 parts of butylbenzene 1500,1 ~2 parts of antioxidant 4010 Na, 1~2 part of anti-aging agent RD, 3~8 parts of zinc oxide, 1~3 part of stearic acid, 25~35 parts of N330 carbon blacks, 10~15 parts of white carbons, 5~10 parts of terpene resins, 5~15 parts of environment-friendly type aromatic naphtha, 2~5 parts of adhesive PM-18,0.5~1.2 Part accelerant NOBS, 1.5~2.5 parts of Sulfurs；Upper and lower covering glue layer and side glue-line are counted in parts by weight, are made up of the following raw material：50~65 natural one section of rubber, 50~35 Part butadiene rubber, the chopped fine pre-dispersed material of 3~5 parts of aramid fibers, 1~2 part of antioxidant 4010 Na, 1~2 part of anti-aging agent RD, 0.5~2 Part microcrystalline wax, 3~7 parts of zinc oxide, 1~3 part of stearic acid, 40~70 parts of N234 carbon blacks, 0.5~2 part of dispersant, 5~10 parts Paraffin oil, 0.5~1.5 part of accelerant CZ, 0.2~0.8 part of altax, 1.2~2 parts of sulphur；Shock resistance anti-tearing cushion is the straight burr or twill nylon66 fiber cord fabric laterally set；Production craft step is as follows：First, refining glue(1), adhesive glue is kneaded：Plasticity of plasticating is added by weight up to 0.6~0.8 natural rubber and butadiene-styrene rubber, is kneaded 60 Second, add zinc oxide, stearic acid, antioxidant 4010 Na, anti-aging agent RD, terpene resin, adhesive PM-18 and be kneaded 30 seconds, add Carbon black, white carbon, environment-friendly aromatic oil, it is kneaded to 135 DEG C of dumpings；Banbury is put into again after parking 8 hours, is kneaded to 60 DEG C, Accelerant NOBS, sulphur are added, low speed is kneaded to 95 DEG C of dumpings, tabletting and received after parking 24 hours；(2), rubber cover is kneaded：Naturally, the short pre-dispersed material of fibre of butadiene rubber, aramid fiber, it is kneaded 60 seconds, adds zinc oxide, N234 charcoals It is black, it is kneaded to 160 DEG C of dumpings；Mixer mixing is put into after parking 8 hours 75 seconds, add stearic acid, antioxidant 4010 Na, prevent always Agent RD, dispersant, microcrystalline wax, paraffin oil, it is kneaded to 140 DEG C of dumpings；Mixer mixing is put into after parking 8 hours again to 60 DEG C, accelerant CZ, altax, sulphur are added, low speed is kneaded to 95 DEG C of dumping tablettings, received after parking 24 hours；2nd, calendering formation(1) after, adhesive rubber parks 24 hours, through cold feed extruder filter glue, heat refining, the straight latitude of diameter is answered in four rod calenders Close aramid fiber canvas, the surface pressure rubberizing of shock resistance anti-tearing cushion two；Rubberizing pressure suitably increases, and improves sizing material and skeleton is oozed Saturating degree；(2) the straight latitude Composite aramid fiber canvas of diameter, the shock resistance anti-tearing cushion, after rubberizing are compound；Extruded using covering sizing material Side glue, the compound good face welt glue of belt carcass two, parks 4~8 hours and fits over glue；(3), for rubber cover after cold feed extruder filter glue and abundant heat refining, the rubber cover for being adjusted to need on calender is thick Degree, the belt carcass of forming, directly against upper and lower covering rubber is closed, park after cure in 8 hours on calender；3rd, vulcanizeBand embryo is not required to stretch pot vulcanization, and conditions of vulcanization is：142~145 DEG C of curing temperature, 3.0~3.5MPa of sulfide stress；Band After embryo dress pot, first make high pressure and preheat 2~3 minutes, fall pot exhaust, then make high pressure and normally vulcanize, cure time (min)=20 + 1.1 × tape thickness (mm).
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Denomination of invention: High wear-resistant and impact resistant aramid core conveyor belt and its production technology Effective date of registration: 20220308 Granted publication date: 20180112 Pledgee: Tongcheng Yinqiao financing Company limited by guarantee Pledgor: ANHUI OUNAI RUBBER & PLASTIC INDUSTRY CO.,LTD. Registration number: Y2022980002304 |
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Date of cancellation: 20230423 Granted publication date: 20180112 Pledgee: Tongcheng Yinqiao financing Company limited by guarantee Pledgor: ANHUI OUNAI RUBBER & PLASTIC INDUSTRY CO.,LTD. Registration number: Y2022980002304 |