CN111761885B - Beach vehicle belt and formula and processing method thereof - Google Patents

Beach vehicle belt and formula and processing method thereof Download PDF

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Publication number
CN111761885B
CN111761885B CN202010519071.8A CN202010519071A CN111761885B CN 111761885 B CN111761885 B CN 111761885B CN 202010519071 A CN202010519071 A CN 202010519071A CN 111761885 B CN111761885 B CN 111761885B
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parts
belt
rubber
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mixing
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CN111761885A (en
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庞长志
鲍人平
邢俊杰
张杨
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Zhejiang Baoerli Rubber & Plastic Co ltd
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Zhejiang Powerbelt Co ltd
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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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/22—Component parts, details or accessories; Auxiliary operations
    • B29B7/28—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
    • B29B7/286—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control measuring properties of the mixture, e.g. temperature, density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D29/00—Producing belts or bands
    • 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
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/042—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • 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
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/14—Layered products comprising a layer of natural or synthetic rubber comprising synthetic rubber copolymers
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
    • 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
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16—Fibres; Fibrils

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a belt of a beach vehicle, and relates to the technical field of transmission belts. A bottom cloth layer, bottom glue, a framework layer, a top glue and a top cloth layer are sequentially arranged from inside to outside; bottom teeth are arranged on the bottom rubber, and top teeth are arranged on the top rubber; the framework layer is provided with aramid cords along the direction of the belt; aramid fibers are arranged in the bottom rubber along the direction vertical to the belt; the invention also discloses a formula and a processing method of the belt of the beach vehicle. The invention gives consideration to the temperature resistance, the transverse rigidity and the low-compression heat-generating performance of the belt.

Description

Beach vehicle belt and formula and processing method thereof
Technical Field
The invention relates to the technical field of transmission belts, in particular to a beach vehicle belt and a formula and a processing method thereof.
Background
The belt of the beach vehicle is an important part of the beach vehicle, belongs to friction transmission and is used for transmitting power by means of friction force between the belt and a belt wheel. In addition, the belt of the beach vehicle is also a speed-changing belt, and the acceleration and deceleration of the beach vehicle are realized by changing the diameters of the driving wheel and the driven wheel, namely the transmission ratio is steplessly adjusted. The whole beach vehicle runs by the power transmitted by the belt, the conditions are very harsh, and the requirements of common belts are difficult to meet.
In order to avoid the belt slipping during transmission, certain tension must be applied to the belt during transmission so as to generate positive pressure friction force for transmission. The belt is continuously bent and extruded in high-speed operation, the V-shaped belt is easy to heat under the action of friction force, the higher the rotating speed and the higher the load, the higher the temperature rise is, the belt becomes soft when the temperature rises, the transverse rigidity is also obviously reduced, and the belt turns on one side and fails.
Disclosure of Invention
The invention aims to provide a beach vehicle belt, a formula and a processing method thereof, which have the heat resistance, the transverse rigidity and the low compression heat generation performance of the belt.
In order to achieve the purpose, the invention provides the following technical scheme:
a belt of a beach vehicle is characterized in that a bottom cloth layer, bottom glue, a framework layer, a top glue and a top cloth layer are sequentially arranged from inside to outside; the bottom rubber is provided with bottom teeth, the top rubber is provided with top teeth, and the main consideration is to reduce bending stress and increase heat dissipation area; the framework layer is provided with aramid fiber ropes along the direction of the belt; aramid fiber is arranged in the bottom glue along the direction perpendicular to the belt.
Further, the bottom glue and the top glue are ethylene propylene diene monomer glue.
A formula of a beach vehicle belt, which is characterized in that,
the primer comprises the following components in parts by weight:
100 parts of ethylene propylene diene monomer; 18-23 parts of aramid fiber; 1.5-2.0 parts of zinc stearate; 3-6 parts of zinc oxide; 5-6.5 parts of an accelerator ZDMA; 2.0-3 parts of accelerator TAIC; 1-1.5 parts of anti-aging agent 4010 NA; 1-1.5 parts of anti-aging agent RD; 8-15 parts of white carbon black; 35-40 parts of N550 carbon black; 5-8 parts of paraffin oil; 0.4-0.6 part of scorch retarder; 5-7 parts of peroxide vulcanizing agent;
the top rubber comprises the following components in parts by weight:
100 parts of ethylene propylene diene monomer; 4-7 parts of aramid fiber; 18-20 parts of blue cotton powder; 3-6 parts of zinc oxide; 5-6.5 parts of an accelerator ZDMA; 2.0-3.5 parts of accelerator TAIC; 1-1.5 parts of anti-aging agent 4010 NA; 1-1.5 parts of an anti-aging agent RD; 1-2.0 parts of zinc stearate; 35-38 parts of N550 carbon black; 8-10 parts of white carbon black; 10-15 parts of calcium carbonate; 5-8 parts of paraffin oil; 0.4-0.5 part of scorch retarder; 5.0 to 6.0 portions of peroxide vulcanizing agent.
Further, the primer comprises the following components in parts by weight: 100 parts of ethylene propylene diene monomer; 20 parts of aramid fiber; 1.5 parts of zinc stearate; 5 parts of zinc oxide; 5 parts of an accelerator ZDMA; 3 parts of accelerator TAIC; anti-aging agent 4010NA1.5 parts; 1.5 parts of an anti-aging agent RD; 10 parts of white carbon black; 40 parts of N550 carbon black; 6 parts of paraffin oil; 0.4 part of a scorch retarder; 6 parts of peroxide vulcanizing agent.
Further, the top rubber comprises the following components in parts by weight:
100 parts of ethylene propylene diene monomer; 5 parts of aramid fiber; 20 parts of blue cotton powder; 5 parts of zinc oxide; 5 parts of an accelerator ZDMA; 3 parts of accelerator TAIC; anti-aging agent 4010NA1.5 parts; 1.5 parts of an anti-aging agent RD; 1.5 parts of zinc stearate; 35 parts of N550 carbon black; 10 parts of white carbon black; 15 parts of calcium carbonate; 6 parts of paraffin oil; 0.4 part of a scorch retarder; 5.5 parts of peroxide vulcanizing agent.
The method for processing the belt of the beach vehicle comprises rubber mixing, sheet discharging and splicing, and is characterized in that the rubber mixing comprises first-stage mixing and second-stage mixing;
first-stage mixing:
feeding the materials at the temperature of less than 90 ℃ in an internal mixer, and adding ethylene propylene diene monomer to mix for 30 seconds; then adding an anti-aging agent, an accelerator, zinc oxide, zinc stearate and aramid fiber and refining for 90 seconds; adding 2/3 of carbon black and refining for 60 seconds; adding 1/3 of carbon black and paraffin oil for refining for 60 seconds; lifting the top bolt for cleaning; continuously mixing for 90 seconds at the temperature of below 160 ℃, and discharging; then, pulling the sheet on an open mill for cooling, and controlling the temperature of the lower sheet at 110-120 ℃;
and (3) second-stage mixing:
the temperature of the internal mixer is less than 80 ℃, and the master batch mixed for one section is added for mixing for 30 seconds; adding an anti-scorching agent and a peroxide vulcanizing agent for refining for 120 seconds; lifting the top bolt for cleaning; continuously mixing for 60 seconds, and discharging the rubber at the temperature of less than 105 ℃; then the sheet is pulled on an open mill and cooled down.
Furthermore, blue cotton powder is added simultaneously in the process of adding an anti-aging agent, an accelerator, zinc oxide, zinc stearate and aramid fiber and refining for 90 seconds during the first-stage mixing.
Further, in the one-stage mixing, calcium carbonate was simultaneously added during 60 seconds of adding 2/3 of carbon black.
Further, the sheet discharging process is as follows: after the mixed rubber is parked for 24 hours, the sheet is taken out, the sheet thickness is 0.7mm +/-0.05 mm, and the sheet taking-out temperature is 95 +/-5 ℃.
Further, the splicing process is as follows: after the film is discharged, the film is spliced in a 90-degree reversing manner, so that the fibers in the film are transversely arranged.
Compared with the prior art, the invention has the beneficial effects that:
the main material of the invention adopts the ethylene propylene diene monomer with excellent aging resistance, and can be used for a long time in the environment of 120-150 ℃, thereby solving the problem of aging resistance of the belt; the compression heat generation of the base rubber is low, so that the problem of dynamic heat generation in a high-load environment is solved; aramid fiber is added into the primer, so that the wear resistance of the belt is greatly enhanced.
Drawings
Fig. 1 is an overall structure of the present invention.
In the figure: 1. a base cloth layer; 2. base glue; 21. a bottom tooth; 3. a framework layer; 31. aramid fiber cords; 4. a top layer; 41. a top tooth; 5. and a top cloth layer.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1, in the belt for a beach vehicle provided in this embodiment, a bottom fabric layer 1, a bottom rubber 2, a framework layer 3, a top rubber 4, and a top fabric layer 5 are sequentially disposed from inside to outside (from bottom to top in the figure), and in this embodiment, the bottom rubber 2 and the top rubber 4 are made of ethylene propylene diene monomer, which can be used at 120-150 ℃ for a long time, thereby solving the problem of belt aging. Be provided with the base tooth 21 on the base coat 2, be provided with top tooth 41 on the top glue 4, have lower bending stress during belt transmission, dynamic flexure can be good, and heat dispersion is good, has the advantage that reduces area body self temperature. The framework layer 3 is provided with the aramid fiber cord 31 along the belt direction, so that heat shrinkage is not generated during transmission, and the service life is prolonged. Aramid short fibers with the length of 1mm are arranged in the base rubber 2 along the direction perpendicular to the belt, so that the transverse rigidity of the belt is fully considered, the temperature resistance of the aramid fibers is good, the transverse rigidity of the belt can be kept at high temperature, namely the aramid fibers cannot deform transversely, and the framework layers are kept uniformly stressed all the time.
The second embodiment:
the embodiment provides a formula of the belt of the beach vehicle, which is characterized in that,
the primer comprises the following components in parts by weight:
100 parts of ethylene propylene diene monomer; 18-23 parts of aramid fiber; 1.5-2.0 parts of zinc stearate; 3-6 parts of zinc oxide; 5-6.5 parts of an accelerator ZDMA; 2.0-3 parts of accelerator TAIC; 1-1.5 parts of anti-aging agent 4010 NA; 1-1.5 parts of an anti-aging agent RD; 8-15 parts of white carbon black; 35-40 parts of N550 carbon black; 5-8 parts of paraffin oil; 0.4-0.6 part of scorch retarder; 5-7 parts of a peroxide vulcanizing agent;
referring to tables 1 and 2 below, the primer adopts the following two formulas in different parts by weight:
table 1: parts by weight and properties of primer formulation one
Figure BDA0002531234110000041
Figure BDA0002531234110000051
Table 2: the second formulation of primer is composed of the following components in parts by weight and properties
Figure BDA0002531234110000052
Figure BDA0002531234110000061
The top rubber comprises the following components in parts by weight:
100 parts of ethylene propylene diene monomer; 4-7 parts of aramid fiber; 18-20 parts of blue cotton powder; 3-6 parts of zinc oxide; 5-6.5 parts of an accelerator ZDMA; 2.0-3.5 parts of accelerator TAIC; 1-1.5 parts of anti-aging agent 4010 NA; 1-1.5 parts of an anti-aging agent RD; 1-2.0 parts of zinc stearate; 35-38 parts of N550 carbon black; 8-10 parts of white carbon black; 10-15 parts of calcium carbonate; 5-8 parts of paraffin oil; 0.4-0.5 part of scorch retarder; 5.0 to 6.0 portions of peroxide vulcanizing agent (40 percent).
Referring to tables 3 and 4 below, the top adhesive adopts the following two formulas in different parts by weight:
table 3: weight portion and performance of formula one of top rubber
Figure BDA0002531234110000071
Figure BDA0002531234110000081
Table 4: the second formula of the top rubber has the following weight portions and properties
Figure BDA0002531234110000082
Figure BDA0002531234110000091
For solving the problem of serious abrasion on the beachThe aramid fiber is added into the formula, and the abrasion resistance of the aramid fiber is very good, the abrasion resistance of the ethylene propylene diene monomer is also very good, and the abrasion loss of the base rubber is 65mm from the test result 3 The abrasion loss of the topping rubber was 94mm 3 The abrasion loss is very low.
In order to solve the problem of belt slippage under high load. The hardness is considered not to be too high in the formula design and is about 86; and the gel content is also higher: the bottom glue is 50 percent, the top glue is 47 percent, so that the high elasticity of the belt can be kept, and the two side surfaces of the belt are plush after being ground after the aramid fiber and the blue cotton powder are added, so that the friction coefficients of the two side surfaces of the belt can be greatly improved.
The belt is designed by adopting a scheme that the bottom rubber and the top rubber are separately designed, and the belt is different from the traditional design scheme that the bottom rubber and the top rubber are in the same formula. The separated design can be designed according to different stress states of the upper part and the lower part of the cord of the belt framework, so that the design is more reasonable.
18-23 parts of aramid fiber are added into the primer, so that the transverse rigidity of the belt is fully considered, the temperature resistance of the aramid fiber is good, the transverse rigidity of the belt can be kept at high temperature, namely the aramid fiber cannot deform transversely, and the framework layer is kept uniformly stressed all the time. To address the problem of dynamic heat generation under high load, the primer formulation has very low compression heat generation, only 20.5 ℃. The elongation at break is fully considered in the design of the top rubber, the elongation at break in the transverse direction is 261%, and the top rubber mainly takes stretching as a main factor.
Through bench test, this belt runs 500 hours after, the area body is intact, can satisfy the operation requirement of sandy beach car belt completely.
Example three:
the embodiment provides a method for processing a belt of a beach vehicle, which comprises the steps of mixing rubber, discharging pieces and splicing, and is characterized in that the mixing rubber comprises first-stage mixing and second-stage mixing;
first-stage mixing:
feeding materials at the temperature of the internal mixer being less than 90 ℃, and adding ethylene propylene rubber for refining for 30 seconds; then adding an anti-aging agent, an accelerator, zinc oxide, zinc stearate and aramid fiber (basket cotton powder is also added when rubber is top-mixed) and refining for 90 seconds; adding 2/3 carbon black for refining (adding calcium carbonate when rubber is refined) for 60 seconds; adding 1/3 of carbon black and paraffin oil for refining for 60 seconds; lifting the top bolt for cleaning; continuously mixing for 90 seconds at the temperature of below 160 ℃, and discharging; then, pulling the sheet on an open mill for cooling, and controlling the temperature of the lower sheet at 110-120 ℃;
and (2) two-stage mixing:
the temperature of the internal mixer is less than 80 ℃, and the master batch mixed for one section is added for mixing for 30 seconds; adding an anti-scorching agent and a peroxide vulcanizing agent for refining for 120 seconds; lifting the top bolt for cleaning; continuously mixing for 60 seconds, and discharging the rubber, wherein the rubber discharging temperature is less than 105 ℃; then the sheet is pulled on an open mill and cooled down.
The sheet discharging process is as follows: after the mixed rubber is parked for 24 hours, sheet discharging is carried out, the sheet discharging thickness is 0.7mm +/-0.05 mm, and sheet discharging is carried out so that fibers in the rubber material are fully guided along the calendering direction; the sheet-out temperature is 95 ℃. + -. 5 ℃.
The splicing process is as follows: after the film is discharged, the film is subjected to 90-degree reversing splicing, so that fibers in the film are transversely arranged, and the film is spliced and taken for later forming.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (6)

1. A belt of a beach vehicle is characterized in that a bottom cloth layer, bottom glue, a framework layer, a top glue and a top cloth layer are sequentially arranged from inside to outside; bottom teeth are arranged on the bottom rubber, and top teeth are arranged on the top rubber; the framework layer is provided with aramid cords along the direction of the belt; aramid fibers are arranged in the primer along the direction vertical to the belt;
the primer comprises the following components in parts by weight: 100 parts of ethylene propylene diene monomer; 20 parts of aramid fiber; 1.5 parts of zinc stearate; 5 parts of zinc oxide; 5 parts of an accelerator ZDMA; 3 parts of accelerator TAIC; antiager 4010NA1.5 parts; 1.5 parts of an anti-aging agent RD; 10 parts of white carbon black; 40 parts of N550 carbon black; 6 parts of paraffin oil; 0.4 part of a scorch retarder; 6 parts of a peroxide vulcanizing agent;
the top rubber comprises the following components in parts by weight:
100 parts of ethylene propylene diene monomer; 5 parts of aramid fiber; 20 parts of blue cotton powder; 5 parts of zinc oxide; 5 parts of an accelerator ZDMA; 3 parts of accelerator TAIC; antiager 4010NA1.5 parts; 1.5 parts of an anti-aging agent RD; 1.5 parts of zinc stearate; 35 parts of N550 carbon black; 10 parts of white carbon black; 15 parts of calcium carbonate; 6 parts of paraffin oil; 0.4 part of a scorch retarder; 5.5 parts of peroxide vulcanizing agent.
2. The method for processing the belt of the dune buggy on the basis of claim 1, comprising rubber mixing, sheet production and splicing, wherein the rubber mixing comprises one-stage mixing and two-stage mixing;
first-stage mixing:
feeding materials at the temperature of the internal mixer being less than 90 ℃, and adding ethylene propylene diene monomer to be mixed for 30 seconds; then adding an anti-aging agent, an accelerator, zinc oxide, zinc stearate and aramid fiber and refining for 90 seconds; adding 2/3 carbon black to smelt for 60 seconds; adding 1/3 of carbon black and paraffin oil for refining for 60 seconds; lifting the top bolt for cleaning; continuously mixing for 90 seconds at the temperature of below 160 ℃, and discharging; then, cooling the zipper pulls on an open mill, and controlling the temperature of the lower zipper pulls at 110-120 ℃;
and (3) second-stage mixing:
the temperature of the internal mixer is less than 80 ℃, and the master batch of the first-stage mixing is added for mixing for 30 seconds; adding an anti-scorching agent and a peroxide vulcanizing agent for refining for 120 seconds; lifting the top bolt for cleaning; continuously mixing for 60 seconds, and discharging the rubber at the temperature of less than 105 ℃; then the sheet is pulled on an open mill and cooled down.
3. The method of claim 2, wherein blue cotton powder is added during the mixing of the top rubber in one stage, and the anti-aging agent, the accelerator, the zinc oxide, the zinc stearate and the aramid fiber are added during the mixing for 90 seconds.
4. The method of claim 2, wherein calcium carbonate is added during 2/3 carbon black addition for 60 seconds during the one-stage mixing of the topping rubber.
5. The method for processing the belt of the beach vehicle as claimed in claim 2, wherein the sheet-out process is as follows: after the mixed rubber is parked for 24 hours, the sheet is taken out, the thickness of the sheet is 0.7mm +/-0.05 mm, and the temperature of the sheet is 95 +/-5 ℃.
6. The method for processing the belt of the beach vehicle as claimed in claim 5, wherein the splicing process is as follows: after the film is discharged, the film is spliced in a 90-degree reversing manner, so that the fibers in the film are transversely arranged.
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