CN105600280A - High-abrasion-resistance anti-impacting aramid fiber core conveying belt and production technology thereof - Google Patents
High-abrasion-resistance anti-impacting aramid fiber core conveying belt and production technology thereof Download PDFInfo
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- CN105600280A CN105600280A CN201510973483.8A CN201510973483A CN105600280A CN 105600280 A CN105600280 A CN 105600280A CN 201510973483 A CN201510973483 A CN 201510973483A CN 105600280 A CN105600280 A CN 105600280A
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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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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 invention relates to a conveying belt, in particular to a high-abrasion-resistance anti-impacting aramid fiber core conveying belt and a production technology thereof. The conveying belt is formed by an aramid fiber canvas skeleton layer, anti-impacting and anti-tearing buffering layers, an upper covering rubber layer, a lower covering rubber layer and a side rubber layer; the anti-impacting and anti-tearing buffering layers are arranged at the upper side and the lower side of the aramid fiber canvas skeleton layer, and the aramid fiber canvas skeleton layer and the anti-impacting anti-tearing buffering layers, the adjacent anti-impacting anti-tearing buffering layers as well as the anti-impacting anti-tearing buffering layers, the upper and lower covering rubber layers and the side rubber layer are bonded through bonding glue and vulcanized into a whole; aramid fiber canvas is of a straight warp and straight weft structure, and warp-wise stress threads are composite thread ropes formed by doubling and twisting straight aramid fiber, nylon 66 composite thread ropes, aramid fiber plied yarn and nylon 66 plied yarn after twisting. A belt body of the high-abrasion-resistance anti-impacting aramid fiber core conveying belt has proper softness, and the anti-impacting capacity is enhanced. The anti-impacting anti-tearing buffering layers are additionally arranged, and the requirement for anti-impacting performance of an application environment with different impact types is met.
Description
Technical field
The present invention relates to a kind of conveyer belt, specifically relate to a kind of high abrasion shock resistance aramid fiber core conveyer belt and production technology thereof,Particularly a kind of high abrasion shock resistance aramid fiber core conveyer belt using the straight latitude aramid fiber of straight warp canvas as tensile layer.
Background technology
It is most economical a kind of mode of movement that conveyer is carried, and has therefore obtained application widely in all trades and professions. Conveyer is joinedThe basic demand of cover conveyer belt is to use efficient, easy to maintenance, safe and reliable, energy-conserving and environment-protective. Due to applied environment difference,The belt carcass material of conveyer belt is different with the performance requirement of rubber cover. Traditional conveyer belt framework material with polyester for being subject to the line of forceEP, EE canvas and taking nylon 6, nylon 66 as being subject to the NN nylon canvas layering conveyer belt of the line of force, account for total consumption 50% withUpper, heavy adhesive tape is mainly taking steel cord conveyor belt as main. , transport hard for some large conveying quantities, HI high impact, convey materialsDistance and have the changeable transportation environment of the climbing etc. of turning, the adhesive tape of two types all exists serious deficiency. Layering adhesive tape bandBody is light, shock resistance good, but uses for a long time easy layering, and creep elongation is large, and poor dimensional stability is affected by the strength of materials,It is poor and cannot use that band exceedes by force the too thick groove forming character that causes of 2000N/mm core body, and service life is short. Steel wire rope rubber band strength is large,Good stability, but the band body weight of steel cord conveyor belt, energy consumption is large, is subject to material to impact for a long time the yielding fracture shadow of steel wire ropeRing intensity, the exoskeletal tear strips of broadwise, uses steel wire rope easy-to-rust broken belt for a long time, and the joint time is long, to drive roller diameterRequire larger.
Aramid fiber has best combination property, and the most outstanding feature is that high strength, high-modulus, density are little; Its surface is strongMore than Du Keda 20.0CN/dtex, be 5～7 times of steel, general the more than 2 times of organic chemistry fiber; Density and commonSpend fine and it makes no odds, individual layer aramid fiber is that frame strength can reach 4000N/mm, can meet high, medium and low difference strongDegree requirement. Heat resistance is good, and under the environmental condition of 130 DEG C, the loss late of intensity is negligible, at the bar of 250 DEG CUnder part, can normally use, more than 500 DEG C just start to decompose. Toughness is 3 times of reinforcing glass fiber, and body is fire-retardant, resistance toThe corrosion of the chemicals such as water and soda acid. That the aramid fiber core conveyer belt of wriggling taking aramid fiber as skeleton extends is little, good stability of the dimension, core body are thickSpend thinly, can be applied to the complicated transport places such as large conveying quantity, long distance, high inclination-angle and curving movement. The same rubber of aramid fiber skeletonThe bonding force of glue is high, fatigue resistance good, the consumption of operation kinetic energy less, simple in structure, joint is easy, long service life, is systemMake the desirable framework material of high-performance conveyer belt. Aramid cord obtains in industries such as driving-belt, high-performance tire, high-pressure rubber pipesObtained extensive use. Tape transport inventory is large, requires the intensity of framework material high. Because the compression resistant of aramid fiber is tiredLabor poor-performing, can not adopt multiple-layer stacked to improve intensity. Conveying circuit is longer, has certain adjusting surplus but requires sizeGood stability. Therefore utilize expensive aramid fiber for skeleton, key is by structural design, formula Design, processing technologyDesign, improves the every physical and mechanical properties of adhesive tape and whole matching, makes full use of the premium properties of aramid fiber material, overcomes notProfit factor, the service life of improving to greatest extent aramid fiber conveying belt.
Summary of the invention
For the technical problem existing in prior art, the object of the present invention is to provide a kind of high abrasion shock resistance aramid fiber core defeatedSend band and production technology thereof, by choose reasonable framework material, design optimization core, bonding glue-line and covering glue layer are joinedSide's design, Design Processing improve the every physical and mechanical properties of adhesive tape and whole matching, meet the strong wear-resisting conveying of HI high impactThe performance requirement of 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 conveyer belt,Formed aramid fiber canvas skeleton by aramid fiber canvas casing play, shock resistance anti-tearing cushion, upper and lower covering glue layer and limit glue-lineThe upper and lower sides of layer is respectively arranged with shock resistance anti-tearing cushion; Aramid fiber canvas casing play and shock resistance anti-tearing cushion itBetween, between adjacent shock resistance anti-tearing cushion, logical between shock resistance anti-tearing cushion and upper and lower covering glue layer and limit glue-lineCross adhesive glue bonding and after over cure shape in aggregates; Aramid fiber canvas is straight through straight latitude structure, and it is straight that its warp-wise is subject to the line of forceAramid fiber, the compound cotton rope of nylon 66, after aramid fiber strand, nylon 66 strand twistings, certain proportion closes and is twisted compound cotton rope.
Nylon 66 strands and aramid fiber strand have good compatibility to impregnation slurry, and compound cotton rope is more conducive to dipping solution to virtueDipping, the infiltration of synthetic fibre long filament inside. Nylon 66 strands are not born conveyance tension, and Main Function is to reduce aramid cord strandBetween mutually compression, abrasion, overcome the poor defect of the incompressible fatigability of aramid fiber. The elastic performance of compound cotton rope is better, canTo improve anti-material impact performance. Because the compound cotton rope of aramid fiber is in straightened condition, the intensity of aramid fiber is fully used.Compound cotton rope is compared and is had better fatigue resistance with pure aramid cord, suitable percentage elongation, controlled percent thermal shrinkage and sizeStability, higher cost performance. The broadwise line of the compound aramid fiber canvas of the straight latitude of diameter uses nylon 66 strands, at warp-wise cotton ropeTwo, shuttle back and forth up and down footpath, parallel connected into an entirety by thin nylon 66 warp-wise connecting lines. Broadwise line is twoThe compound cotton rope of face protection warp-wise aramid fiber. Because stressed skeleton only has one deck, core body is very light and pliability is good especially, easilyBending fold, fatigue resistance runs through the whole life cycle of conveyer belt. Belt body can be resisted various chemical reaction impacts well,Can do not corroded or rot by water etc., the service life that can improve to greatest extent conveyer belt.
Shock resistance anti-tearing cushion is straight burr or twill nylon 66 cord fabrics of horizontally set, and object is in order further to carryThe shock resistance of high adhesive tape, can play anti-tear effect simultaneously. Upper covering glue layer is working face, directly contacts with material,According to the size of impulsive force, 1～3 layer of shock resistance anti-tearing cushion can be set, lower covering glue layer is set to 1 layer.
Adhesive rubber guarantee aramid fiber skeleton and shock resistance anti-tearing cushion, shock resistance anti-tearing cushion are with having between rubber coverEnough bonding forces, not delamination in the whole life cycle of guarantee product application. Require to subdue internal stress low, repeatedly resistance to simultaneouslyFlexural fatigue. Meter by weight, made by following raw material: 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 partsN330 carbon black, 10～15 parts of white carbons, 5～10 parts of terpene resins, 5～15 parts of environment-friendly type aromatic naphtha, 2～5 parts are bondingAgent PM-18,0.5～1.2 part of accelerant NOBS, 1.5～2.5 parts of Sulfurs.
Rubber cover requires wear-resisting, shock resistance, resistance to cutting, can protect well expensive aramid fiber canvas casing play. Upper coveringGlue, lower rubber cover, limit glue adopt formula of the same race, and meter by weight, is made up of following raw material: 50～65 natural one sectionRubber, 50～35 parts of butadiene rubbers, 3～5 parts of short fine pre-dispersed material, 1～2 part of antioxidant 4010 Na, 1～2 of cutting of aramid fiberPart anti-aging agent 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 of dispersant, 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 high abrasion shock resistance aramid fiber core conveyer belt of the present invention, step is as follows:
One, refining glue
(1), adhesive glue is mixing: add by weight the plasticity of plasticating to reach 0.6～0.8 natural rubber and butadiene-styrene rubber, mixing60 seconds, add zinc oxide, stearic acid, antioxidant 4010 Na, anti-aging agent RD, terpene resin, adhesive PM-18 to mixRefine 30 seconds, add carbon black, white carbon, environment-friendly aromatic oil, mixing to 135 DEG C of binder removals; Park after 8 hours and again drop intoBanbury, mixing to 60 DEG C, add accelerant NOBS, sulphur, low speed is mixing to 95 DEG C of binder removals, and it is 24 little that compressing tablet is parkedTime after receive;
(2), rubber cover is mixing: natural, butadiene rubber, the pre-dispersed material of aramid fiber short fiber, mixing 60 seconds, add zinc oxide,N234 carbon black, mixing to 160 DEG C of binder removals; Park after 8 hours and drop into mixer mixing 75 seconds, add stearic acid, anti-oldAgent 4010Na, anti-aging agent RD, dispersant, microcrystalline wax, paraffin oil, mixing to 140 DEG C of binder removals; Park after 8 hoursAgain drop into mixer mixing to 60 DEG C, add accelerant CZ, altax, sulphur, low speed is mixing to 95 DEG C of binder removalsCompressing tablet, parks after 24 hours and receives;
Two, calendering formation
(1), adhesive rubber parks after 24 hours, through cold feed extruder filter glue, heat refining, at four rod calenders diameterThe straight compound aramid fiber canvas of latitude, the two surface pressure rubberizings of shock resistance anti-tearing cushion; Rubberizing pressure suitably strengthens, and improves sizing material pairThe penetration degree of skeleton;
(2), the compound aramid fiber canvas of the straight latitude of the diameter after rubberizing, shock resistance anti-tearing cushion are compound; Use covering sizing material to squeezeGo out limit glue, compound good two welt glue of belt carcass, park 4～8 hours laminating rubber covers;
(3), rubber cover is through cold feed extruder filter glue with fully after heat refining, adjusts to the rubber cover needing thick on calenderDegree, the belt carcass of forming on calender directly fit upper and lower covering rubber, park after cure in 8 hours;
Three, sulfuration
Band embryo does not need to stretch upper pot and vulcanizes, and conditions of vulcanization is: 142～145 DEG C of curing temperatures, sulfide stress 3.0～3.5MPa;After band embryo dress pot, first make high pressure preheating 2～3 minutes, pot exhaust that falls, then make high pressure and normally vulcanize, cure time (min)=20+1.1 × tape thickness (mm).
High abrasion shock resistance aramid fiber core conveyer belt of the present invention and production technology thereof, its beneficial effect shows:
(1), to use aramid fiber, the compound cotton rope of nylon 66 be skeleton for warp-wise is subject to the straight latitude aramid fiber of the diameter canvas of the line of force, skeletonLayer straight burr setting up and down or twill nylon 66 cord fabric shock resistance anti-tearing cushions, additional high abrasion shock resistance rubber cover,Casing play with between cushion, cushion is with pasting by adhesive rubber between rubber cover, is bonded into an entirety after sulfuration, suitableThe application demand requiring in high abrasion, shock resistance. The elastic performance of compound cotton rope is better, can improve anti-material impact performance.Shock resistance anti-tearing cushion can further improve the shock resistance of adhesive tape, can play anti-tear effect simultaneously. Rubber coverLayer wear resistant and impact resistant, by adding the belt cutting-resisting property of aramid short fiber increase rubber cover. Entirety wear resistant and impact resistant performance addsBy force, there is better fatigue resistance, suitable percentage elongation, controlled percent thermal shrinkage and dimensional stability, good one-tenth simultaneouslyGroove performance.
(2), owing to having selected specific framework material, belt body pliability is suitable, impact resistance strengthen. Increase shock resistanceAnti-tear cushion, can meet the different applied environment shock resistance requirements of impacting. The bonding force of adhesive rubber is large, to boneThe penetrating power of frame material is strong, and dynamic property is good, ensures the globality of the whole life cycle of adhesive tape.
(3), to cover the wear resistant and impact resistant performance of sizing material good, by adding the pre-dispersed material of aramid fiber short fiber, through rolling orientation,The belt cutting-resisting property of rubber cover improves, and three-stage mixing compounding ingredient dispersing uniformity is good, and rubber strength strengthens, anti-wear performance and resistance toFlexural property improves.
Brief description of the drawings
Fig. 1 is the structural representation of high abrasion shock resistance aramid fiber core conveyer belt of the present invention.
In Fig. 1,1, limit glue-line, 3, upper covering glue layer, 4, lower covering glue layer, 5, aramid fiber canvas casing play, 6, anti-Impact anti-tear cushion, 7, bonding glue-line.
Detailed description of the invention
For further describing high abrasion shock resistance aramid fiber core conveyer belt of the present invention and production technology thereof, below in conjunction with accompanying drawing to itBe described further.
Embodiment 1
A kind of high abrasion shock resistance aramid fiber core conveyer belt shown in Fig. 1, is delayed by aramid fiber canvas casing play 5, shock resistance anti-tearingPunching layer 6, upper covering glue layer 3, lower covering glue layer 4 and limit glue-line 1 form, the upside setting of aramid fiber canvas casing play 5Have two-layer shock resistance anti-tearing cushion 6, the downside of aramid fiber canvas casing play 5 is provided with one deck shock resistance anti-tearing cushion6; Between aramid fiber canvas casing play 5 and shock resistance anti-tearing cushion 6, between adjacent shock resistance anti-tearing cushion 6,Between anti-tear cushion 6 and upper and lower covering glue layer and limit glue-line, (in the conveyer belt structure after moulding, be sticky by adhesive glueRubber alloy layer 7) bonding and after over cure shape in aggregates.
Embodiment 2
High abrasion shock resistance aramid fiber conveying belt specification 1250N/mm-1000mm (6+3), include the straight latitude aramid fiber of diameter canvas,Shock resistance anti-tearing cushion, adhesive rubber glue-line, high abrasion shock resistance covering glue layer. Wherein: the straight latitude virtue of described diameterSynthetic fibre warp yarn aramid fiber 3360dtex × 2Z90 × 4S70+1880dtex nylon 66 × 2Z60 × 1S70, i.e. Grain lines aramid fiber first twistSilk 3360dtex × 2, the twist (Z) 90, nylon 66 just twisted filament 1880dtex × 2, the twist (Z) 60, retwist is 4 strands of virtuesSynthetic fibre first twist strand adds 1 strand of nylon 66 strand, the retwist twist (S) 70,44/dm of density. Nylon 66 broadwise lines 1880Dtex × 6Z60,32/dm of density. Nylon 66 connecting line 2200dtex × 1Z100,88/dm of density. Aramid fiber canvasThickness 2.8mm, weight per unit area 1.9kg/m2。
All use up and down individual layer shock resistance anti-tearing cushion.
Adhesive glue formula, by weight: 60 parts of natural rubbers, 40 parts, butadiene-styrene rubber, antioxidant 4010 Na1.5 part,1.5 parts of anti-aging agent RDs, 6 parts, zinc oxide, 2 parts of stearic acid, 32 parts of N330 carbon blacks, 12 parts of white carbons, terpene resin7 parts, 10 parts of environment-friendly type aromatic naphtha, 3.5 parts, PM-18 adhesive, 1 part of accelerant NOBS, 1.8 parts of Sulfurs.
Rubber cover and limit glue formula, by weight: 52 parts of natural one section of rubber, 48 parts of butadiene rubbers, aramid fiber short fiber is pre-4 parts of disperse materials, antioxidant 4010 Na2 part, 1 part of anti-aging agent RD, 1 part of microcrystalline wax, 4 parts, zinc oxide, stearic acid2.5 parts, 65 parts of N234 carbon blacks, 0.6 part of dispersant, 8 parts of paraffin oils, 0.7 part of accelerant CZ, altax 0.5Part, 1.6 parts, sulphur.
According to following explained hereafter:
One, refining glue
(1), adhesive glue is mixing: add by weight the plasticity of plasticating to reach 0.6～0.8 natural rubber and butadiene-styrene rubber, mixing60 seconds, add zinc oxide, stearic acid, antioxidant 4010 Na, anti-aging agent RD, terpene resin, adhesive PM-18 to mixRefine 30 seconds, add carbon black, white carbon, environment-friendly aromatic oil, mixing to 135 DEG C of binder removals; Park after 8 hours and again drop intoBanbury, mixing to 60 DEG C, add accelerant NOBS, sulphur, low speed is mixing to 95 DEG C of binder removals, and it is 24 little that compressing tablet is parkedTime after receive;
(2), rubber cover is mixing: natural, butadiene rubber, the pre-dispersed material of aramid fiber short fiber, mixing 60 seconds, add zinc oxide,N234 carbon black, mixing to 160 DEG C of binder removals; Park after 8 hours and drop into mixer mixing 75 seconds, add stearic acid, anti-oldAgent 4010Na, anti-aging agent RD, dispersant, microcrystalline wax, paraffin oil, mixing to 140 DEG C of binder removals; Park after 8 hoursAgain drop into mixer mixing to 60 DEG C, add accelerant CZ, altax, sulphur, low speed is mixing to 95 DEG C of binder removalsCompressing tablet, parks after 24 hours and receives;
Two, calendering formation
(1), adhesive rubber parks after 24 hours, through cold feed extruder filter glue, heat refining, at four rod calenders diameterThe straight compound aramid fiber canvas of latitude, the two surface pressure rubberizings of shock resistance anti-tearing cushion; Rubberizing pressure suitably strengthens, and improves sizing material pairThe penetration degree of skeleton;
(2), the compound aramid fiber canvas of the straight latitude of the diameter after rubberizing, shock resistance anti-tearing cushion are compound; Use covering sizing material to squeezeGo out limit glue, compound good two welt glue of belt carcass, park 4～8 hours laminating rubber covers;
(3), rubber cover is through cold feed extruder filter glue with fully after heat refining, adjusts to the rubber cover needing thick on calenderDegree, the belt carcass of forming on calender directly fit upper and lower covering rubber, park after cure in 8 hours;
Three, sulfuration
Band embryo does not need to stretch upper pot and vulcanizes, and conditions of vulcanization is: 142～145 DEG C of curing temperatures, sulfide stress 3.0～3.5MPa;After band embryo dress pot, first make high pressure preheating 2～3 minutes, pot exhaust that falls, then make high pressure and normally vulcanize, cure time (min)=20+1.1 × tape thickness (mm).
The performance test results of products obtained therefrom is in table 1:
Table 11250N/mm-1000mm (6+3) high abrasion shock resistance aramid fiber conveying belt performance
The longitudinal elongation rate of tensile failure of through thickness of table 1 data declaration: 1250N/mm band only has 3.8%, illustrates at full capacity and usesPercentage elongation is little, can meet long-distance transportation demand; Bonding strength is high, has ensured the entirety in the whole life cycle of conveyer beltProperty; 60 °, side carrying roller grooved angle grooving degree is high, can meet the special transport place demands such as high inclination-angle; The intensity of rubber cover andAnti-wear performance is good, can avoid the wearing and tearing of adhesive tape rubber cover to cause adhesive tape to damage and scrap too early, has improved to greatest extent high abrasionThe service life of shock resistance 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 of diameter warp yarn aramid fiber3360dtex × 9Z40 × 3S40+1880dtex nylon 66 × 5Z60 × 1S40, i.e. just twisted filament of Grain lines aramid fiber 3360dtex × 9,The twist (Z) 40, nylon 66 just twisted filament 1880dtex × 5, the twist (Z) 60, retwist is that 3 strands of aramid fiber first twist strands add 1Thigh nylon 66 strands, the retwist twist (S) 40,22/dm of density. Broadwise line 1880dtex nylon 66 × 9Z60, close32/dm of degree. Connecting line 3300dtex nylon 66 × 1Z100,44/dm of density. Aramid fiber canvas thickness 3.2mm, singlePosition area weight 1.94.6kg/m2, upper rubber cover side is used two layers of shock resistance cushion, hands over center line inclination 45 degree of bandWrong placement. Lower rubber cover side is used individual layer shock resistance cushion, laterally vertically places with casing play. Rubber cover and adhesive glue are joinedSide is with embodiment 2, and the Performance Detection of conveyer belt is in table 2:
Table 22500N/mm-1400mm (9+4) high abrasion shock resistance aramid fiber conveying belt performance
Table 2 data declaration: reinforced belt in 2500N/mm, the longitudinal elongation rate of tensile failure of through thickness of band is 4.2%,Suitably increase compared with full aramid fiber 3% elongation rate of tensile failure of warp-wise, rigidity reduces, and pliability increases, and the fatigue performance of band strengthens.Grooving degree under high grooved angle is still very high, has avoided the poor defect of multilaminar high strength degree adhesive tape groove forming character; Band bonding strength high,The intensity of rubber cover and anti-wear performance are good, and overall performance is good.
Above content is only that affiliated those skilled in the art are to institute to design example of the present invention and explanationThe specific embodiment of describing makes various amendments or supplements or adopt similar mode to substitute, only otherwise depart from the structure of inventionThink or surmount this scope as defined in the claims, all should belong to protection scope of the present invention.
Claims (5)
1. a high abrasion shock resistance aramid fiber core conveyer belt, is characterized in that, by aramid fiber canvas casing play, anti-Impact anti-tear cushion, upper and lower covering glue layer and limit glue-line and form, the upside setting of aramid fiber canvas casing play1～3 shock resistance anti-tearing cushion, it is slow that the downside of aramid fiber canvas casing play arranges 1 shock resistance anti-tearingPunching layer; Between aramid fiber canvas casing play and shock resistance anti-tearing cushion, adjacent shock resistance anti-tearing cushion itBetween, bonding and through over cure by adhesive glue between shock resistance anti-tearing cushion and upper and lower covering glue layer and limit glue-lineAfter changing, shape is in aggregates; Aramid fiber canvas is straight through straight latitude structure, and it is straight aramid fiber, nylon that its warp-wise is subject to the line of force66 compound cotton ropes, after aramid fiber strand, nylon 66 strand twistings, certain proportion closes and is twisted compound cotton rope.
2. high abrasion shock resistance aramid fiber core conveyer belt as claimed in claim 1, is characterized in that adhesive glueMeter by weight, made by following raw material: 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 of accelerant NOBS, 1.5～2.5 parts of Sulfurs.
3. high abrasion shock resistance aramid fiber core conveyer belt as claimed in claim 1, is characterized in that, covers up and downLid glue-line and limit glue-line are counted by weight, are made up of following raw material: 50～65 natural one section of rubber, 50～35 parts of butadiene rubbers, 3～5 parts of short fine pre-dispersed material, 1～2 part of antioxidant 4010 Na, 1～2 parts cut of aramid fiberAnti-aging agent RD, 0.5～2 part of microcrystalline wax, 3～7 parts of zinc oxide, 1～3 part of stearic acid, 40～70 parts of N234Carbon black, 0.5～2 part of dispersant, 5～10 parts of paraffin oils, 0.5～1.5 part of accelerant CZ, 0.2～0.8 part is shortEnter agent DM, 1.2～2 parts of sulphur.
4. high abrasion shock resistance aramid fiber core conveyer belt as claimed in claim 1, is characterized in that shock resistanceAnti-tear cushion is straight burr or twill nylon 66 cord fabrics of horizontally set.
5. a technique for production high abrasion shock resistance aramid fiber core conveyer belt as described in claim 1～4 any one,It is characterized in that, step is as follows:
One, refining glue
(1), adhesive glue is mixing: add by weight the plasticity of plasticating to reach 0.6～0.8 natural rubber and butylbenzene rubberGlue, mixing 60 seconds, add zinc oxide, stearic acid, antioxidant 4010 Na, anti-aging agent RD, terpene resin,Mixing 30 seconds of adhesive PM-18, adds carbon black, white carbon, environment-friendly aromatic oil, mixing to 135 DEG C of binder removals;Park after 8 hours and again drop into banbury, mixing to 60 DEG C, add accelerant NOBS, sulphur, low speedMixing to 95 DEG C of binder removals, compressing tablet is parked after 24 hours and is received;
(2), rubber cover is mixing: natural, butadiene rubber, the pre-dispersed material of aramid fiber short fiber, mixing 60 seconds, addEnter zinc oxide, N234 carbon black, mixing to 160 DEG C of binder removals; Park after 8 hours and drop into mixer mixing 75 seconds,Add stearic acid, antioxidant 4010 Na, anti-aging agent RD, dispersant, microcrystalline wax, paraffin oil, extremely mixing140 DEG C of binder removals; Park after 8 hours and again drop into mixer mixing to 60 DEG C, add accelerant CZ, promotionAgent DM, sulphur, low speed is mixing to 95 DEG C of binder removal compressing tablets, parks after 24 hours and receives;
Two, calendering formation
(1), adhesive rubber parks after 24 hours, through cold feed extruder filter glue, heat refining, in four rods calenderingsMachine is compound straight diameter latitude aramid fiber canvas, the two surface pressure rubberizings of shock resistance anti-tearing cushion; Rubberizing pressure is suitableStrengthen, improve the penetration degree of sizing material to skeleton;
(2), the compound aramid fiber canvas of the straight latitude of the diameter after rubberizing, shock resistance anti-tearing cushion are compound; Use is coveredLid sizing material is extruded limit glue, and compound good two welt glue of belt carcass are parked 4～8 hours laminating rubber covers;
(3), rubber cover is through cold feed extruder filter glue with fully after heat refining, on calender, adjusting to needsRubber cover thickness, the belt carcass of forming on calender directly laminating upper and lower covering rubber, park after 8 hoursSulfuration;
Three, sulfuration
Band embryo does not need to stretch upper pot and vulcanizes, and conditions of vulcanization is: 142～145 DEG C of curing temperatures, and sulfide stress 3.0～3.5MPa; After band embryo dress pot, first make high pressure preheating 2～3 minutes, pot exhaust that falls, then it is normal to make high pressureSulfuration, cure time (min)=20+1.1 × tape thickness (mm).
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| CN106987034A (en) * | 2017-05-14 | 2017-07-28 | 常州蓝森环保设备有限公司 | A kind of preparation method of rubber conveyer belt rubber cover |
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| CN115258892A (en) * | 2022-08-23 | 2022-11-01 | 上海扶联电梯配件有限公司 | High-strength handrail belt and preparation method thereof |
| CN115504159A (en) * | 2022-10-19 | 2022-12-23 | 吴善聪 | Ultrahigh wear-resistant anti-tearing conveying belt |
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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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