CN111873571A - Mining wear-resistant steel wire wound rubber tube and preparation method thereof - Google Patents

Mining wear-resistant steel wire wound rubber tube and preparation method thereof Download PDF

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Publication number
CN111873571A
CN111873571A CN202010610800.0A CN202010610800A CN111873571A CN 111873571 A CN111873571 A CN 111873571A CN 202010610800 A CN202010610800 A CN 202010610800A CN 111873571 A CN111873571 A CN 111873571A
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parts
layer
rubber
steel wire
wear
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骆恺
瞿秋海
李猷
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Gates Hydraulic Technology Changzhou Co ltd
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Gates Hydraulic Technology Changzhou 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/02—Layer formed of wires, e.g. mesh
    • 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
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/06—Layered products comprising a layer of metal comprising metal 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/14—Layered products comprising a layer of metal 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • 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
    • B32B25/04—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
    • B32B25/08—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 synthetic resin
    • 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
    • B32B25/16—Layered products comprising a layer of natural or synthetic rubber comprising polydienes homopolymers or poly-halodienes homopolymers
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • 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
    • B32B3/10—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 discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/14—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 discontinuous layer, i.e. formed of separate pieces of material characterised by a face layer formed of separate pieces of material which are juxtaposed side-by-side
    • 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
    • B32B3/10—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 discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18—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 discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08L9/02—Copolymers with acrylonitrile
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B2038/0052—Other operations not otherwise provided for
    • B32B2038/0076—Curing, vulcanising, cross-linking
    • 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
    • B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
    • 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
    • B32B2307/552—Fatigue strength
    • 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
    • B32B2597/00—Tubular articles, e.g. hoses, pipes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/18—Applications used for pipes
    • 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
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • 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
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Ropes Or Cables (AREA)
  • Laminated Bodies (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

The invention discloses a mining wear-resistant steel wire wound rubber pipe and a preparation method thereof, which respectively comprise an inner rubber layer, a steel wire reinforcing layer, a bonding rubber layer and a wear-resistant layer from inside to outside; the inner rubber layer comprises the following components in parts by mass: nitrile rubber: 90-110 parts; light calcium carbonate: 40-50 parts; carbon black: 40-50 parts; aromatic oil: 8-16 parts; gumalong: 4-5 parts; nano zinc oxide: 2-3 parts of a solvent; dioctyl ester: 1-2 parts; an anti-aging agent: 1-2 parts; sulfur: 1-3 parts; accelerator (b): 1-2 parts; the adhesive layer comprises the following components in parts by mass: nitrile butadiene rubber: 50-60 parts; neoprene adhesive: 40-50 parts; carbon black: 60-90 parts; paraffin oil: 30-40 parts; silane coupling agent: 3-5 parts; zinc oxide: 3-5 parts; stearic acid: 1-2 parts; phenol formaldehyde resin: 3-4 parts; an anti-aging agent: 3-5 parts; protective wax: 3-5 parts; plasticizer: 5-9 parts of a solvent; sulfur: 2-3 parts of a solvent; accelerator (b): 1-2 parts. The rubber tube has excellent wear resistance, dynamic pulse resistance and fatigue resistance, and meets the requirements of mining customers on the wear resistance of the rubber tube.

Description

Mining wear-resistant steel wire wound rubber tube and preparation method thereof
Technical Field
The invention relates to a mining wear-resistant steel wire wound rubber tube and a preparation method thereof.
Background
At present, the steel wire wound rubber tube has been widely used in the fields of mineral development, engineering construction, ship transportation and the like due to excellent pressure bearing capacity and long service life. Due to the extremely special and harsh operating conditions of the mining industry, the use process is usually accompanied by high temperature, high vibration and high friction. The relatively high environmental temperature is influenced by external factors such as ozone, ultraviolet rays and the like, the thermal-oxidative aging of the outer rubber layer is accelerated, and the service life of the rubber is shortened. The high vibration and high friction cause the pipe body exposed outside to frequently receive impact and fatigue stress, often result in the outer rubber layer to be damaged, the steel wire framework layer is directly exposed in the working condition environment and is subjected to chemical actions such as acid, alkali and salt, so that the steel wire layer is corroded, as a main body for bearing pressure, the corrosion of the steel wire framework layer directly causes the service life of the rubber pipe to be greatly shortened, and the common rubber outer rubber steel wire winding pipe cannot meet the requirement of mining application on the service life of the rubber pipe.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a mining wear-resistant steel wire wound rubber tube which has excellent wear resistance, dynamic pulse resistance and fatigue resistance and meets the requirements of mining customers on the wear resistance of the rubber tube.
In order to solve the technical problems, the technical scheme of the invention is as follows: a mining wear-resistant steel wire wound rubber pipe comprises an inner rubber layer, a steel wire reinforcing layer, a bonding rubber layer and a wear-resistant layer from inside to outside; wherein the content of the first and second substances,
the inner rubber layer comprises the following components in parts by mass:
nitrile rubber: 90-110 parts;
light calcium carbonate: 40-50 parts;
carbon black: 40-50 parts;
aromatic oil: 8-16 parts;
gumalong: 4-5 parts;
nano zinc oxide: 2-3 parts of a solvent;
dioctyl ester: 1-2 parts;
an anti-aging agent: 1-2 parts;
sulfur: 1-3 parts;
accelerator (b): 1-2 parts;
the adhesive layer comprises the following components in parts by mass:
nitrile butadiene rubber: 50-60 parts;
neoprene adhesive: 40-50 parts;
carbon black: 60-90 parts;
paraffin oil: 30-40 parts;
silane coupling agent: 3-5 parts;
zinc oxide: 3-5 parts;
stearic acid: 1-2 parts;
phenol formaldehyde resin: 3-4 parts;
an anti-aging agent: 3-5 parts;
protective wax: 3-5 parts;
plasticizer: 5-9 parts of a solvent;
sulfur: 2-3 parts of a solvent;
accelerator (b): 1-2 parts.
Further, in the inner rubber layer, the nitrile rubber is a mixture of nitrile rubber 2865 and nitrile rubber 7510; wherein the content of the first and second substances,
2865 parts of nitrile rubber by mass, 40-50 parts of nitrile rubber;
the mass portion of the nitrile rubber 7510 is 50-60.
Further, in the inner rubber layer, the carbon black is N660 carbon black and/or the anti-aging agent is anti-aging agent RD and/or the accelerator is accelerator CBS.
Furthermore, in the bonding glue layer, the carbon black is N550 carbon black and/or the anti-aging agent is a mixture of the anti-aging agent 4010 and the anti-aging agent A and/or the accelerator is the accelerator M.
Further, the anti-aging agent is a mixture of anti-aging agent 4010 and anti-aging agent A; wherein the content of the first and second substances,
2-3 parts of an anti-aging agent 4010;
the mass portion of the anti-aging agent A is 1-2.
Further, the wear-resistant layer is a PVC plastic film.
The invention also provides a preparation method of the mining wear-resistant steel wire wound rubber pipe, which comprises the following steps:
extruding and covering an inner rubber layer on the surface of the core rod to obtain an inner rubber core rod;
sequentially winding corresponding layers of steel wires on the inner rubber core rod to form a steel wire reinforcing layer according to the number of steel wire strands and the pitch requirement of the manufacturing specification to obtain a wound semi-finished product;
extruding and covering a bonding adhesive layer on the surface of the winding semi-finished product to obtain a bonding adhesive core rod semi-finished product;
winding a PVC wear-resistant belt on the combined glue core rod semi-finished product according to a fixed screw pitch to form a wear-resistant layer to obtain a semi-finished product;
coating the protective isolation belt on the semi-finished product and then performing vulcanization molding;
and (4) unfastening the protective isolation belt and removing the core rod to obtain a finished product.
Further, in the step of extruding and coating the inner rubber layer on the surface of the core rod, the temperature of each area of the extruder is set to be 60-75 ℃ of the head temperature, 60-80 ℃ of the screw, 60-75 ℃ of the area 1 of the material cavity, 60-75 ℃ of the area 2 of the material cavity and 70-80 ℃ of the area 3 of the material cavity; and after the inner glue layer is extruded, carrying out water cooling on the extruded inner glue core rod to stabilize the final outer diameter of the extruded inner glue.
Further, in the process of obtaining the winding semi-finished product, the winding directions of the adjacent steel wire layers are opposite;
and/or the steel wire layer is coated with a brass layer which reacts with chemical components in the rubber after vulcanization.
Further, in the process of extruding and coating the bonding glue layer on the surface of the winding semi-finished product,
the temperature of each area of the extruder is set to be 75-90 ℃ of the head temperature, 70-90 ℃ of the screw, 70-85 ℃ of the material cavity 1 area, 70-85 ℃ of the material cavity 2 area and 75-85 ℃ of the material cavity 3 area, and the extruded semi-finished product of the combined glue core rod is cooled by water to stabilize the final extruded outer diameter of the combined glue.
After the technical scheme is adopted, through the design of the components and the component parts by mass of the inner rubber layer and the bonding rubber layer and the design of the extrusion process, the product has excellent wear resistance, dynamic pulse resistance and fatigue resistance, and meets the requirements of mining customers on the wear resistance of the rubber tube.
Drawings
FIG. 1 is a cross-sectional view of the mining wear-resistant steel wire-wound hose of the invention.
Detailed Description
The invention provides a mining wear-resistant steel wire wound rubber pipe and a preparation method thereof, and a person skilled in the art can realize the rubber pipe by properly improving process parameters by referring to the content. It is expressly intended that all such similar substitutes and modifications apparent to those skilled in the art are deemed to be within the scope of the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.
As shown in figure 1, the mining wear-resistant steel wire wound rubber pipe comprises an inner rubber layer 1, a steel wire reinforcing layer 2, a bonding rubber layer 3 and a wear-resistant layer 4 from inside to outside; wherein the content of the first and second substances,
the inner rubber layer 1 comprises the following components in parts by mass:
nitrile rubber: 90-110 parts;
light calcium carbonate: 40-50 parts;
carbon black: 40-50 parts;
aromatic oil: 8-16 parts;
gumalong: 4-5 parts;
nano zinc oxide: 2-3 parts of a solvent;
dioctyl ester: 1-2 parts;
an anti-aging agent: 1-2 parts;
sulfur: 1-3 parts;
accelerator (b): 1-2 parts;
the bonding glue layer 3 comprises the following components in parts by mass:
nitrile butadiene rubber: 50-60 parts;
neoprene adhesive: 40-50 parts;
carbon black: 60-90 parts;
paraffin oil: 30-40 parts;
silane coupling agent: 3-5 parts;
zinc oxide: 3-5 parts;
stearic acid: 1-2 parts;
phenol formaldehyde resin: 3-4 parts;
an anti-aging agent: 3-5 parts;
protective wax: 3-5 parts;
plasticizer: 5-9 parts of a solvent;
sulfur: 2-3 parts of a solvent;
accelerator (b): 1-2 parts.
The phenol-formaldehyde resin may specifically be phenol-formaldehyde resin 202.
Further, in the inner rubber layer 1, the nitrile rubber is a mixture of nitrile rubber 2865 and nitrile rubber 7510; wherein the content of the first and second substances,
2865 parts of nitrile rubber by mass, 40-50 parts of nitrile rubber;
the mass portion of the nitrile rubber 7510 is 50-60.
Further, in the inner rubber layer 1, the carbon black is N660 carbon black; the anti-aging agent is anti-aging agent RD; the accelerator is accelerator CBS.
Further, in the bonding glue layer 3, the carbon black is N550 carbon black; the anti-aging agent is a mixture of anti-aging agent 4010 and anti-aging agent A; the accelerator is an accelerator M.
Further, the anti-aging agent is a mixture of anti-aging agent 4010 and anti-aging agent A; wherein the content of the first and second substances,
2-3 parts of an anti-aging agent 4010;
the mass portion of the anti-aging agent A is 1-2.
Further, the wear-resistant layer 4 is a PVC plastic film.
The preparation method of the mining wear-resistant steel wire wound rubber pipe comprises the following steps:
extruding and covering an inner glue layer 1 on the surface of the core rod to obtain an inner glue core rod;
according to the requirements of the number of steel wire strands and the thread pitch of the manufacturing specification, sequentially winding corresponding layers of steel wires on the inner rubber core rod to form a steel wire reinforcing layer 2, and obtaining a winding semi-finished product;
extruding and covering a bonding adhesive layer 3 on the surface of the winding semi-finished product to obtain a bonding adhesive core rod semi-finished product;
winding a PVC wear-resistant belt on the combined glue core rod semi-finished product according to a fixed screw pitch to form a wear-resistant layer 4, and obtaining a semi-finished product;
coating the protective isolation belt on the semi-finished product and then performing vulcanization molding;
removing the nylon belt on the vulcanized rubber pipe by using a belt removing machine, and pushing the pipe body out of the core rod by using a motor to obtain a finished product;
and (4) pressure maintaining test: the hose was tested for no leakage for at least 2 minutes using 2 times hydrostatic working pressure.
The protective isolation belt can be a nylon belt, the nylon belt plays a role in protection and isolation in the vulcanization process, and the surface texture of the cloth grains is given to the rubber hose.
In the vulcanization molding process, a saturated steam one-step vulcanization molding mode is adopted, the saturated steam pressure is 3.0-3.1MPa, the vulcanization temperature is 151.7 ℃, and the vulcanization time is 60 min.
Further, in the step of extruding and coating the inner rubber layer 1 on the surface of the core rod, the temperature of each area of the extruder is set to be 60-75 ℃ of the head temperature, 60-80 ℃ of the screw, 60-75 ℃ of the area of the material cavity 1, 60-75 ℃ of the area of the material cavity 2 and 70-80 ℃ of the area of the material cavity 3; extrusion speed: 20-25ft/min of a 32mm (-20) drift diameter pipe; a 38mm (-24) drift diameter pipe 15-20 ft/min; a 51mm (-32) drift diameter pipe 10-15 ft/min; and after the inner rubber layer 1 is extruded, carrying out water cooling on the extruded inner rubber core rod to stabilize the final inner rubber extrusion outer diameter, and keeping the temperature of the cooling water at 4 ℃.
Further, in the process of obtaining the winding semi-finished product, 4 steel wire layers are wound on the inner rubber layer 1, the steel wire reinforcing layer 2 is positioned between the inner rubber layer 1 and the bonding rubber layer 3, a steel wire winding structure is adopted, and the winding directions between the adjacent steel wire layers are opposite, so that the purpose of stress balance is achieved. A thin rubber sheet is arranged between the steel wire layers to play a role in bonding. The surface of the steel wire is plated with a brass layer which reacts with chemical components in the rubber through vulcanization, so that good adhesive force between metal and the rubber is provided. The steel wire winding angle collocation adopts a balanced angle collocation method, so that the total steel wire winding angle is equal to 54.7 degrees.
Further, in the process of extruding and coating the bonding glue layer 3 on the surface of the winding semi-finished product,
the temperature of each zone of the extruder is set as the head temperature of 75-90 ℃, the screw temperature of 70-90 ℃, the temperature of 70-85 ℃ in the material cavity 1 zone, the temperature of 70-85 ℃ in the material cavity 2 zone, the temperature of 75-85 ℃ in the material cavity 3 zone, and the extrusion speed: a 32mm (-20) drift diameter pipe 10-12 ft/min; 9-10ft/min of a 38mm (-24) drift diameter pipe; a 51mm (-32) drift diameter pipe 8-10 ft/min; and (3) carrying out water cooling on the extruded semi-finished product of the combined glue core rod to stabilize the final extruded outer diameter of the combined glue, and keeping the temperature of cooling water at 4 ℃.
Forming wearing layer 4 on combining gluey plug semi-manufactured goods with the wear-resisting area of PVC according to fixed pitch winding, obtaining semi-manufactured goods's in-process, with the even winding of fixed pitch according to 1inch (25.4mm) of the wear-resisting area of polyvinyl chloride (PVC) on combining gluey plug semi-manufactured goods, bandage tension is set for about 1.5 kilograms, bandage speed: a 32mm (-20) drift diameter pipe 6.1 m/min; 38mm (-24) diameter pipe 5.9/min; a 51mm (-32) through-diameter pipe with a diameter of 4.9 m/min.
In order that the present invention may be more clearly understood, the following detailed description of the present invention is given with reference to specific examples.
Example one
A mining wear-resistant steel wire wound rubber pipe comprises an inner rubber layer 1, a steel wire reinforcing layer 2 comprising four steel wire layers formed by copper-plated steel wires, a bonding rubber layer 3 and a wear-resistant layer 4 from inside to outside; wherein the content of the first and second substances,
the inner rubber layer 1 comprises the following components in parts by mass:
nitrile rubber 2865: 40 parts of a mixture;
nitrile rubber 7510: 50 parts of the raw materials.
Light calcium carbonate: 40 parts of a mixture;
n660 carbon Black: 40 parts of a mixture;
aromatic oil: 8 parts of a mixture;
gumalong: 4 parts of a mixture;
nano zinc oxide: 2 parts of (1);
dioctyl ester: 1 part;
anti-aging agent RD: 1 part;
sulfur: 1 part;
accelerator CBS: 1 part;
the bonding glue layer 3 comprises the following components in parts by mass:
nitrile butadiene rubber: 50 parts of a mixture;
neoprene adhesive: 40 parts of a mixture;
n550 carbon Black: 60 parts;
paraffin oil: 30 parts of (1);
silane coupling agent: 3 parts of a mixture;
zinc oxide: 3 parts of a mixture;
stearic acid: 1 part;
phenol formaldehyde resin: 3 parts of a mixture;
anti-aging agent 4010: 2 parts of (1);
an anti-aging agent A: 1 part.
Protective wax: 3 parts of a mixture;
plasticizer: 5 parts of a mixture;
sulfur: 2 parts of (1);
accelerator M: 1 part.
The preparation method of the mining wear-resistant steel wire wound rubber pipe comprises the following steps:
extruding and covering an inner glue layer 1 on the surface of the core rod to obtain an inner glue core rod;
according to the requirements of the number of steel wire strands and the thread pitch of the manufacturing specification, sequentially winding corresponding layers of steel wires on the inner rubber core rod to form a steel wire reinforcing layer 2, and obtaining a winding semi-finished product;
extruding and covering a bonding adhesive layer 3 on the surface of the winding semi-finished product to obtain a bonding adhesive core rod semi-finished product;
winding a PVC wear-resistant belt on the combined glue core rod semi-finished product according to a fixed screw pitch to form a wear-resistant layer 4, and obtaining a semi-finished product;
coating the protective isolation belt on the semi-finished product and then performing vulcanization molding;
removing the nylon belt on the vulcanized rubber pipe by using a belt removing machine, and pushing the pipe body out of the core rod by using a motor to obtain a finished product;
and (4) pressure maintaining test: the hose was tested for no leakage for at least 2 minutes using 2 times hydrostatic working pressure.
The protective isolation belt can be a nylon belt, the nylon belt plays a role in protection and isolation in the vulcanization process, and the surface texture of the cloth grains is given to the rubber hose.
In the vulcanization molding process, a saturated steam one-step vulcanization molding mode is adopted, the saturated steam pressure is 3.0-3.1MPa, the vulcanization temperature is 151.7 ℃, and the vulcanization time is 60 min.
In the step of extruding and coating the inner rubber layer 1 on the surface of the core rod, the temperature of each area of the extruder is set to be 60-75 ℃ of the head temperature, 60-80 ℃ of the screw, 60-75 ℃ of the area of the material cavity 1, 60-75 ℃ of the area of the material cavity 2 and 70-80 ℃ of the area of the material cavity 3; extrusion speed: 20-25ft/min of a 32mm (-20) drift diameter pipe; a 38mm (-24) drift diameter pipe 15-20 ft/min; a 51mm (-32) drift diameter pipe 10-15 ft/min; and after the inner rubber layer 1 is extruded, carrying out water cooling on the extruded inner rubber core rod to stabilize the final inner rubber extrusion outer diameter, and keeping the temperature of the cooling water at 4 ℃.
In the process of obtaining the winding semi-finished product, 4 steel wire layers are wound on the inner rubber layer 1, the steel wire reinforcing layer 2 is positioned between the inner rubber layer 1 and the bonding rubber layer 3, a steel wire winding structure is adopted, and the winding directions of the adjacent steel wire layers are opposite, so that the purpose of stress balance is achieved. A thin rubber sheet is arranged between the steel wire layers to play a role in bonding. The surface of the steel wire is plated with a brass layer which reacts with chemical components in the rubber through vulcanization, so that good adhesive force between metal and the rubber is provided. The steel wire winding angle collocation adopts a balanced angle collocation method, so that the total steel wire winding angle is equal to 54.7 degrees.
In the process of extruding and coating the bonding adhesive layer 3 on the surface of the winding semi-finished product,
the temperature of each zone of the extruder is set as the head temperature of 75-90 ℃, the screw temperature of 70-90 ℃, the temperature of 70-85 ℃ in the material cavity 1 zone, the temperature of 70-85 ℃ in the material cavity 2 zone, the temperature of 75-85 ℃ in the material cavity 3 zone, and the extrusion speed: a 32mm (-20) drift diameter pipe 10-12 ft/min; 9-10ft/min of a 38mm (-24) drift diameter pipe; a 51mm (-32) drift diameter pipe 8-10 ft/min; and (3) carrying out water cooling on the extruded semi-finished product of the combined glue core rod to stabilize the final extruded outer diameter of the combined glue, and keeping the temperature of cooling water at 4 ℃.
Forming wearing layer 4 on combining gluey plug semi-manufactured goods with the wear-resisting area of PVC according to fixed pitch winding, obtaining semi-manufactured goods's in-process, with the even winding of fixed pitch according to 1inch (25.4mm) of the wear-resisting area of polyvinyl chloride (PVC) on combining gluey plug semi-manufactured goods, bandage tension is set for about 1.5 kilograms, bandage speed: a 32mm (-20) drift diameter pipe 6.1 m/min; 38mm (-24) diameter pipe 5.9/min; a 51mm (-32) through-diameter pipe with a diameter of 4.9 m/min.
Example two
A mining wear-resistant steel wire wound rubber pipe comprises an inner rubber layer 1, a steel wire reinforcing layer 2 comprising four steel wire layers formed by copper-plated steel wires, a bonding rubber layer 3 and a wear-resistant layer 4 from inside to outside; wherein the content of the first and second substances,
the inner rubber layer 1 comprises the following components in parts by mass:
nitrile rubber 2865: 50 parts of a mixture;
nitrile rubber 7510: 60 parts.
Light calcium carbonate: 50 parts of a mixture;
n660 carbon Black: 50 parts of a mixture;
aromatic oil: 16 parts of a mixture;
gumalong: 5 parts of a mixture;
nano zinc oxide: 3 parts of a mixture;
dioctyl ester: 2 parts of (1);
anti-aging agent RD: 2 parts of (1);
sulfur: 3 parts of a mixture;
accelerator CBS: 2 parts of (1);
the bonding glue layer 3 comprises the following components in parts by mass:
nitrile butadiene rubber: 60 parts;
neoprene adhesive: 50 parts of a mixture;
n550 carbon Black: 90 parts of a mixture;
paraffin oil: 40 parts of a mixture;
silane coupling agent: 5 parts of a mixture;
zinc oxide: 5 parts of a mixture;
stearic acid: 2 parts of (1);
phenol formaldehyde resin: 4 parts of a mixture;
anti-aging agent 4010: 3 parts of a mixture;
an anti-aging agent A: and 2 parts.
Protective wax: 5 parts of a mixture;
plasticizer: 9 parts of (1);
sulfur: 3 parts of a mixture;
accelerator M: and 2 parts.
The preparation method of the mining wear-resistant steel wire wound rubber pipe is the same as that of the first embodiment.
EXAMPLE III
A mining wear-resistant steel wire wound rubber pipe comprises an inner rubber layer 1, a steel wire reinforcing layer 2 comprising four steel wire layers formed by copper-plated steel wires, a bonding rubber layer 3 and a wear-resistant layer 4 from inside to outside; wherein the content of the first and second substances,
the inner rubber layer 1 comprises the following components in parts by mass:
nitrile rubber 2865: 45 parts of (1);
nitrile rubber 7510: and 55 parts.
Light calcium carbonate: 45 parts of (1);
n660 carbon Black: 45 parts of (1);
aromatic oil: 10 parts of (A);
gumalong: 4 parts of a mixture;
nano zinc oxide: 2 parts of (1);
dioctyl ester: 1 part;
anti-aging agent RD: 1 part;
sulfur: 2 parts of (1);
accelerator CBS: 2 parts of (1);
the bonding glue layer 3 comprises the following components in parts by mass:
nitrile butadiene rubber: 55 parts of (1);
neoprene adhesive: 45 parts of (1);
n550 carbon Black: 75 parts of a mixture;
35 parts of paraffin oil;
silane coupling agent: 4 parts of a mixture;
zinc oxide: 4 parts of a mixture;
stearic acid: 2 parts of (1);
phenol formaldehyde resin: 3 parts of a mixture;
anti-aging agent 4010: 2 parts of (1);
an anti-aging agent A: and 2 parts.
Protective wax: 4 parts of a mixture;
plasticizer: 7 parts;
sulfur: 2 parts of (1);
accelerator M: and 2 parts.
The preparation method of the mining wear-resistant steel wire wound rubber pipe is the same as that of the first embodiment.
The test data of the mining wear-resistant steel wire wound rubber tube prepared by the three embodiments are as follows:
Figure BDA0002560849690000091
Figure BDA0002560849690000101
Figure BDA0002560849690000111
the performance data of the mining wear-resistant steel wire wound rubber pipe prepared by the three embodiments are as follows:
Figure BDA0002560849690000112
from the two tables, it can be seen that all index data of the mining wear-resistant steel wire wound rubber tube prepared in the first to third embodiments meet the requirements, and the wear-resistant steel wire wound rubber tube has excellent wear resistance, dynamic pulse resistance and fatigue resistance and meets the design requirements.
The above embodiments are described in further detail to solve the technical problems, technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A mining wear-resistant steel wire wound rubber pipe is characterized by comprising an inner rubber layer (1), a steel wire reinforcing layer (2), a bonding rubber layer (3) and a wear-resistant layer (4) from inside to outside respectively; wherein the content of the first and second substances,
the inner rubber layer (1) comprises the following components in parts by mass:
nitrile rubber: 90-110 parts;
light calcium carbonate: 40-50 parts;
carbon black: 40-50 parts;
aromatic oil: 8-16 parts;
gumalong: 4-5 parts;
nano zinc oxide: 2-3 parts of a solvent;
dioctyl ester: 1-2 parts;
an anti-aging agent: 1-2 parts;
sulfur: 1-3 parts;
accelerator (b): 1-2 parts;
the bonding glue layer (3) comprises the following components in parts by mass:
nitrile butadiene rubber: 50-60 parts;
neoprene adhesive: 40-50 parts;
carbon black: 60-90 parts;
paraffin oil: 30-40 parts;
silane coupling agent: 3-5 parts;
zinc oxide: 3-5 parts;
stearic acid: 1-2 parts;
phenol formaldehyde resin: 3-4 parts;
an anti-aging agent: 3-5 parts;
protective wax: 3-5 parts;
plasticizer: 5-9 parts of a solvent;
sulfur: 2-3 parts of a solvent;
accelerator (b): 1-2 parts.
2. The mining wear-resistant wire-wound hose according to claim 1,
in the inner rubber layer (1), the nitrile rubber is a mixture of nitrile rubber 2865 and nitrile rubber 7510; wherein the content of the first and second substances,
2865 parts of nitrile rubber by mass, 40-50 parts of nitrile rubber;
the mass portion of the nitrile rubber 7510 is 50-60.
3. The mining wear-resistant wire-wound hose according to claim 1,
in the inner rubber layer (1), the carbon black is N660 carbon black and/or the anti-aging agent is anti-aging agent RD and/or the accelerator is accelerator CBS.
4. The mining wear-resistant wire-wound hose according to claim 1,
in the bonding glue layer (3), the carbon black is N550 carbon black and/or the anti-aging agent is a mixture of the anti-aging agent 4010 and the anti-aging agent A and/or the accelerator is the accelerator M.
5. The mining wear-resistant wire-wound hose according to claim 1,
the anti-aging agent is a mixture of anti-aging agent 4010 and anti-aging agent A; wherein the content of the first and second substances,
2-3 parts of an anti-aging agent 4010;
the mass portion of the anti-aging agent A is 1-2.
6. The mining wear-resistant wire-wound hose according to claim 1,
the wear-resistant layer (4) is a PVC plastic film.
7. The preparation method of the mining wear-resistant steel wire-wound rubber hose according to any one of claims 1 to 6, which is characterized by comprising the following steps:
extruding and covering an inner rubber layer (1) on the surface of the core rod to obtain an inner rubber core rod;
according to the requirements of the number of steel wire strands and the thread pitch of the manufacturing specification, sequentially winding corresponding layers of steel wires on the inner rubber core rod to form a steel wire reinforcing layer (2) to obtain a wound semi-finished product;
extruding and covering a bonding adhesive layer (3) on the surface of the winding semi-finished product to obtain a bonding adhesive core rod semi-finished product;
winding the PVC wear-resistant belt on the semi-finished product of the combined glue core rod according to a fixed screw pitch to form a wear-resistant layer (4) to obtain a semi-finished product;
coating the protective isolation belt on the semi-finished product and then performing vulcanization molding;
and (4) unfastening the protective isolation belt and removing the core rod to obtain a finished product.
8. The production method according to claim 7,
in the step of extruding and coating the inner rubber layer (1) on the surface of the core rod, the temperature of each area of the extruder is set to be 60-75 ℃ of the head temperature, 60-80 ℃ of the screw, 60-75 ℃ of the area of the material cavity 1, 60-75 ℃ of the area of the material cavity 2 and 70-80 ℃ of the area of the material cavity 3; and after the inner rubber layer (1) is extruded, carrying out water cooling on the extruded inner rubber core rod to stabilize the final outer extruded diameter of the inner rubber.
9. The production method according to claim 7,
in the process of obtaining the winding semi-finished product, the winding directions of the adjacent steel wire layers are opposite;
and/or the steel wire layer is coated with a brass layer which reacts with chemical components in the rubber after vulcanization.
10. The production method according to claim 7,
in the process of extruding and coating the bonding adhesive layer (3) on the surface of the winding semi-finished product,
the temperature of each area of the extruder is set to be 75-90 ℃ of the head temperature, 70-90 ℃ of the screw, 70-85 ℃ of the material cavity 1 area, 70-85 ℃ of the material cavity 2 area and 75-85 ℃ of the material cavity 3 area, and the extruded semi-finished product of the combined glue core rod is cooled by water to stabilize the final extruded outer diameter of the combined glue.
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