CN110776677A - Wear-resistant cold-resistant impact-resistant rubber sieve plate and manufacturing method thereof - Google Patents
Wear-resistant cold-resistant impact-resistant rubber sieve plate and manufacturing method thereof Download PDFInfo
- Publication number
- CN110776677A CN110776677A CN201911122894.0A CN201911122894A CN110776677A CN 110776677 A CN110776677 A CN 110776677A CN 201911122894 A CN201911122894 A CN 201911122894A CN 110776677 A CN110776677 A CN 110776677A
- Authority
- CN
- China
- Prior art keywords
- parts
- rubber
- resistant
- wear
- agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4618—Manufacturing of screening surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/14—Filters
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention discloses a wear-resistant cold-resistant impact-resistant rubber sieve plate and a manufacturing method thereof. The natural rubber/styrene butadiene rubber/butadiene rubber is selected as a main material, N234 carbon black is used as a reinforcing agent, a CMoSSI wear-resistant agent is added, the formula and the process are optimized, and the prepared wear-resistant, cold-resistant and impact-resistant rubber composite material is used as a covering layer of the rubber sieve plate.
Description
Technical Field
The invention relates to the technical field of industrial and mineral rubber products, in particular to a wear-resistant cold-resistant impact-resistant rubber lining plate and a manufacturing method thereof.
Background
The rubber sieve plate used in the industries of metallurgy, building materials, mines, hydropower, coal dressing and the like is required to have the characteristics of high wear resistance, impact resistance, good low-temperature resistance and the like due to the severe working environment and large impact load. Particularly, in mines and open pit mines in northeast and northwest areas of China, the low temperature in a severe cold period is below-50 ℃, the rubber sieve plate in the prior art is hardened and embrittled when used at the environmental temperature, the mechanical property is seriously reduced, the service life is short under the condition of impact load, and even the service performance is lost. In the prior art, researches on improving the wear resistance and the impact resistance of the rubber sieve plate under normal temperature and high temperature conditions are more, but researches on how to improve the mechanical property and the service life of the rubber sieve plate under low temperature and impact load conditions are less.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a wear-resistant, cold-resistant and impact-resistant rubber sieve plate which has excellent wear resistance and impact resistance, still has good mechanical properties and long service life under the conditions of low temperature and impact load, and meets the use requirements of rubber sieve plates in the industries of metallurgy, building materials, mines, hydropower, coal dressing and the like.
The second purpose of the invention is to provide a preparation method of the rubber sieve plate, which has simple process and easy manufacture.
The purpose of the invention is realized by the following scheme:
the wear-resistant cold-resistant impact-resistant rubber sieve plate comprises a nylon impregnated cord fabric framework layer, a nylon impregnated cord fabric adhesive layer, an upper covering adhesive layer, a lower covering adhesive layer and sieve pores, and is characterized in that the upper covering adhesive layer and the lower covering adhesive layer consist of the following components in percentage by weight:
20-30 parts of Natural Rubber (NR), 20-30 parts of styrene butadiene rubber (SBR 1500), 50 parts of butadiene rubber (BR 9000), 4-6 parts of zinc oxide, 1-3 parts of stearic acid, 1.5-2.0 parts of sulfur, 1.5-2.0 parts of an accelerator, 2-3 parts of an anti-aging agent, 1-2 parts of protective wax, 0.5-1 part of a scorch retarder CTP, 50-60 parts of carbon black (N234), 4-6 parts of a CMoSSI wear resistant agent, 4-6 parts of coumarone resin and 2-4 parts of aromatic oil.
The promoter is a combination of a promoter CZ and a promoter TMTD, and the anti-aging agent is a combination of an anti-aging agent RD and an anti-aging agent 4020.
The CMoSSI wear-resistant agent is a composition of graphite powder with the fineness of 1000 meshes, molybdenum disulfide with the fineness of 1000 meshes and a Si69 silane coupling agent, and the mass ratio of the three components is 75%/23%/2%.
The framework layer of the nylon impregnated cord fabric is formed by overlapping 1-3 layers of nylon impregnated cord fabrics which are adhered with glue, and the nylon impregnated cord fabrics can be selected from 2100dtex/2 type and 1400dtex/3 type nylon 6 or nylon 66 impregnated cord fabrics.
The thickness of the rubber sieve plate is 7.5-30mm, and the thickness ratio of the upper covering rubber layer to the lower covering rubber layer is 2: 1.
The sieve pores can be square, strip, round or oval.
The manufacturing method of the wear-resistant cold-resistant impact-resistant rubber sieve plate comprises the following steps:
(1) preparing an upper covering layer sizing material and a lower covering layer sizing material:
the sizing materials of the upper and lower covering glue layers comprise the following components in percentage by weight:
20-30 parts of Natural Rubber (NR), 20-30 parts of styrene-butadiene rubber (SBR 1500), 50 parts of butadiene rubber (BR 9000), 4-6 parts of zinc oxide, 1-3 parts of stearic acid, 1.5-2.0 parts of sulfur, 1.5-2.0 parts of an accelerator, 2-3 parts of an anti-aging agent, 1-2 parts of protective wax, 0.5-1 part of a scorch retarder CTP, 50-60 parts of carbon black (N234), 4-6 parts of a CMoSSI wear-resistant agent, 4-6 parts of coumarone resin and 2-4 parts of aromatic oil;
preparing the mixture into a two-stage rubber compound of an upper covering layer rubber compound and a lower covering layer rubber compound:
1) plasticating natural rubber:
plasticating the natural rubber by using an internal mixer, wherein the rotor speed of the internal mixer is 40 r/min, the plasticating time is 180-;
2) preparing a CmoSSI wear-resistant agent:
putting graphite powder with the fineness of 1000 meshes and molybdenum disulfide with the fineness of 1000 meshes into a kneader, heating and stirring at the stirring speed of 350-400 r/min, heating to 40-60 ℃, spraying a Si69 silane coupling agent, continuously heating and stirring, and stirring at the temperature of 110-120 ℃ for 10-15 min to prepare the CMoSSI wear-resistant agent, wherein the mass ratio of the graphite powder/the molybdenum disulfide/the Si69 in the CMoSSI wear-resistant agent is 75%/23%/2%;
3) first-stage mixing:
firstly, plasticated natural rubber, styrene butadiene rubber and butadiene rubber are put into an internal mixer for mixing for 40-50 seconds, carbon black (50%), a CMoSSI wear-resistant agent and aromatic oil are put into the internal mixer, mixing is continued for 150-180 seconds, then zinc oxide, stearic acid, an anti-aging agent, protective wax, carbon black (50%), coumarone resin are put into the internal mixer for further mixing for 150-180 seconds, the rubber discharge temperature is 140-150 ℃, sheets are taken out and cooled, a section of mixed rubber is prepared, and the mixed rubber is used after being placed for 8 hours;
4) and (3) second-stage mixing:
an internal mixer is used in the second-stage mixing, the rotor speed of the internal mixer is 20 r/min, the first-stage mixed rubber, sulfur, an accelerant and an anti-scorching agent are put into the internal mixer for mixing for 100 and 120 seconds, the rubber discharge temperature is 90-100 ℃, the rubber is discharged and cooled, the second-stage mixed rubber of the rubber materials of the upper and lower covering layers is prepared, and the second-stage mixed rubber is used after being placed for 8 hours;
(2) preparing a glue layer adhesive material of the nylon impregnated cord fabric:
the nylon impregnated cord fabric rubberizing layer sizing material selects a common fabric core conveying belt canvas rubberizing layer sizing material;
(3) rubberizing nylon impregnated cord fabric:
hot-pasting the nylon impregnated cord fabric with a glue layer by layer according to the thickness required by the process on the upper and lower surfaces of the nylon impregnated cord fabric by a cold feed extruder and a four-roll calender;
(4) rolling out a sheet:
preparing upper and lower cover layer rubber sheets from the upper and lower cover layer rubber materials according to the thickness required by the process by using a cold feed extruder and a four-roll calender;
(5) and (3) slab forming:
firstly, sticking rubberized cord fabrics together according to the number of layers required by the process by a forming machine, then sticking the rubberized cord fabrics with upper and lower covering layer films, and performing cold pressing to prepare a plate blank;
(6) plate vulcanization:
vulcanizing the plate blank by a vulcanizing press according to the pressure, temperature and time required by the process;
(7) scribing:
marking a line on the plate blank according to the drawing size requirement;
(8) cutting:
cutting the plate blank into the size required by the drawing according to the marking lines;
(9) punching:
inputting technical parameters of the sieve plate into a computer, and automatically punching holes on the plate blank by an automatic punching machine;
(10) assembling:
the tensioning hook, the fixed flat iron and the fixing screw are assembled with the punched rubber sieve plate through an automatic assembling machine, and the rubber sieve plate is the wear-resistant, cold-resistant and impact-resistant rubber sieve plate.
Compared with the prior art, the invention has the following beneficial effects:
the natural rubber/styrene butadiene rubber/butadiene rubber is selected as a main material, N234 carbon black is used as a reinforcing agent, a CMoSSI wear-resistant agent is added, the formula and the process are optimized, and the prepared wear-resistant, cold-resistant and impact-resistant rubber composite material is used as a covering layer of the rubber sieve plate.
Detailed Description
The following examples are given to aid in the understanding of the invention, but are not intended to limit the scope of the invention.
Example 1
The embodiment provides a wear-resisting cold-resistant rubber sieve plate that shocks resistance, including nylon gumming cord fabric casing ply, nylon gumming cord fabric rubberizing layer, upper covering glue film, lower covering glue film and sieve mesh, its characterized in that, upper covering glue film, lower covering glue film constitute by following component according to the weight ratio:
NR 20 parts, SBR 150030 parts, BR 900050 parts, zinc oxide 4 parts, stearic acid 3 parts, sulfur 2.0 parts, accelerator CZ 1 part, accelerator TMTD 1 part, anti-aging agent RD 1 part, anti-aging agent 40201 part, protective wax 2 parts, antiscorching agent CTP 0.5 part, carbon black N23450 part, CmoSSI wear-resistant agent 6 parts, coumarone resin 6 parts, and aromatic oil 2 parts.
The CMoSSI wear-resistant agent is a composition of graphite powder with the fineness of 1000 meshes, molybdenum disulfide with the fineness of 1000 meshes and a Si69 silane coupling agent, and the mass ratio of the three components is 75%/23%/2%.
The rubber sieve plate with the wear resistance, the cold resistance and the impact resistance is 7.5mm thick, the framework layer is a layer of 2100dtex/2 nylon 6 dipped cord fabric, the thickness of the upper covering rubber layer is 4mm, and the thickness of the lower covering rubber layer is 2 mm.
In the rubber sieve plate with wear resistance, cold resistance and impact resistance, the sieve pores are strip-shaped pores, and the size of the sieve pores is 16mm × 40 mm.
The embodiment provides a method for manufacturing a wear-resistant, cold-resistant and impact-resistant rubber sieve plate, which comprises the following steps:
(1) preparing an upper covering layer sizing material and a lower covering layer sizing material:
the sizing materials of the upper and lower covering glue layers comprise the following components in percentage by weight:
NR 20 parts, SBR 150030 parts, BR 900050 parts, zinc oxide 4 parts, stearic acid 3 parts, sulfur 2.0 parts, accelerator CZ 1 part, accelerator TMTD 1 part, anti-aging agent RD 1 part, anti-aging agent 40201 part, protective wax 2 parts, antiscorching agent CTP 0.5 part, carbon black N23450 part, CmoSSI wear-resistant agent 6 parts, coumarone resin 6 parts, and aromatic oil 2 parts.
Preparing the mixture into a two-stage rubber compound:
1) plasticating natural rubber:
plasticating the natural rubber by using an internal mixer, wherein the rotor speed of the internal mixer is 40 r/min, the plasticating time is 180-;
2) preparing a CmoSSI wear-resistant agent:
putting graphite powder with the fineness of 1000 meshes and molybdenum disulfide with the fineness of 1000 meshes into a kneader, heating and stirring at the stirring speed of 350-400 r/min, heating to 40-60 ℃, spraying a Si69 silane coupling agent, continuously heating and stirring, and stirring at the temperature of 110-120 ℃ for 10-15 min to prepare the CMoSSI wear-resistant agent, wherein the mass ratio of the graphite powder/the molybdenum disulfide/the Si69 in the CMoSSI wear-resistant agent is 75%/23%/2%;
3) first-stage mixing:
firstly, plasticated natural rubber, styrene butadiene rubber and butadiene rubber are put into an internal mixer for mixing for 40-50 seconds, carbon black (50%), a CMoSSI wear-resistant agent and aromatic oil are put into the internal mixer, mixing is continued for 150-180 seconds, then zinc oxide, stearic acid, an anti-aging agent, protective wax, carbon black (50%), coumarone resin are put into the internal mixer for further mixing for 150-180 seconds, the rubber discharge temperature is 140-150 ℃, sheets are taken out and cooled, a section of mixed rubber is prepared, and the mixed rubber is used after being placed for 8 hours;
4) and (3) second-stage mixing:
an internal mixer is used in the second-stage mixing, the rotor speed of the internal mixer is 20 r/min, the first-stage mixed rubber, sulfur, an accelerant and an anti-scorching agent are put into the internal mixer for mixing for 100 and 120 seconds, the rubber discharge temperature is 90-100 ℃, the rubber is discharged and cooled, the second-stage mixed rubber of the rubber materials of the upper and lower covering layers is prepared, and the second-stage mixed rubber is used after being placed for 8 hours;
(2) preparing a glue layer adhesive material of the nylon impregnated cord fabric:
the nylon impregnated cord fabric rubberizing layer sizing material of the embodiment is common fabric core conveying belt canvas rubberizing layer sizing material;
(3) rubberizing nylon impregnated cord fabric:
hot-pasting the nylon impregnated cord fabric with a glue layer by layer according to the thickness required by the process on the upper and lower surfaces of the nylon impregnated cord fabric by a cold feed extruder and a four-roll calender;
(4) rolling out a sheet:
preparing upper and lower cover layer rubber sheets from the upper and lower cover layer rubber materials according to the thickness required by the process by using a cold feed extruder and a four-roll calender;
(5) and (3) slab forming:
laminating the rubberized cord fabric with the upper and lower covering layer rubber sheets through a forming machine, and performing cold pressing to prepare a plate blank;
(6) plate vulcanization:
vulcanizing the plate blank by a vulcanizing press according to the pressure, temperature and time required by the process;
(7) scribing:
marking a line on the plate blank according to the drawing size requirement;
(8) cutting:
cutting the plate blank into the size required by the drawing according to the marking lines;
(9) punching:
inputting technical parameters of the sieve plate into a computer, and automatically punching holes on the plate blank by an automatic punching machine;
(10) assembling:
the tensioning hook, the fixing flat iron and the fixing screw are assembled with the punched rubber sieve plate through an automatic assembling machine, and the rubber sieve plate is the wear-resistant, cold-resistant and impact-resistant rubber sieve plate.
Example 2
The embodiment provides a wear-resisting cold-resistant rubber sieve plate that shocks resistance, including nylon gumming cord fabric casing ply, nylon gumming cord fabric rubberizing layer, upper covering glue film, lower covering glue film and sieve mesh, its characterized in that, upper covering glue film, lower covering glue film constitute by following component according to the weight ratio:
NR 25 parts, SBR 150025 parts, BR 900050 parts, zinc oxide 5 parts, stearic acid 2 parts, sulfur 1.8 parts, accelerator CZ 1 part, accelerator TMTD 0.8 part, antioxidant RD 1.5 parts, antioxidant 40201 parts, protective wax 1.5 parts, antiscorching agent CTP 0.8 part, carbon black N23455 parts, CMoSSI wear-resistant agent 5 parts, coumarone resin 5 parts, and aromatic oil 3 parts.
The CMoSSI wear-resistant agent is a composition of graphite powder with the fineness of 1000 meshes, molybdenum disulfide with the fineness of 1000 meshes and a Si69 silane coupling agent, and the mass ratio of the three components is 75%/23%/2%.
The rubber sieve plate with the wear resistance, the cold resistance and the impact resistance is 21mm thick, the framework layers are two layers of 1400dtex/3 type nylon 66 dipped cord fabrics, the thickness of the upper covering rubber layer is 12mm, and the thickness of the lower covering rubber layer is 6 mm.
The rubber sieve plate of this embodiment wear-resisting cold-resistant shock resistance, the sieve mesh is circular hole, sieve mesh diameter 45 mm.
The embodiment provides a method for manufacturing a wear-resistant, cold-resistant and impact-resistant rubber sieve plate, which comprises the following steps:
(1) preparing an upper covering layer sizing material and a lower covering layer sizing material:
the sizing materials of the upper and lower covering glue layers comprise the following components in percentage by weight:
NR 25 parts, SBR 150025 parts, BR 900050 parts, zinc oxide 5 parts, stearic acid 2 parts, sulfur 1.8 parts, accelerator CZ 1 part, accelerator TMTD 0.8 part, antioxidant RD 1.5 parts, antioxidant 40201 parts, protective wax 1.5 parts, antiscorching agent CTP 0.8 part, carbon black N23455 parts, CMoSSI wear-resistant agent 5 parts, coumarone resin 5 parts, and aromatic oil 3 parts;
preparing the mixture into a two-stage rubber compound:
1) plasticating natural rubber:
plasticating the natural rubber by using an internal mixer, wherein the rotor speed of the internal mixer is 40 r/min, the plasticating time is 180-;
2) preparing a CmoSSI wear-resistant agent:
putting graphite powder with the fineness of 1000 meshes and molybdenum disulfide with the fineness of 1000 meshes into a kneader, heating and stirring at the stirring speed of 350-400 r/min, heating to 40-60 ℃, spraying a Si69 silane coupling agent, continuously heating and stirring, and stirring at the temperature of 110-120 ℃ for 10-15 min to prepare the CMoSSI wear-resistant agent, wherein the mass ratio of the graphite powder/the molybdenum disulfide/the Si69 in the CMoSSI wear-resistant agent is 75%/23%/2%;
3) first-stage mixing:
firstly, plasticated natural rubber, styrene butadiene rubber and butadiene rubber are put into an internal mixer for mixing for 40-50 seconds, carbon black (50%), a CMoSSI wear-resistant agent and aromatic oil are put into the internal mixer, mixing is continued for 150-180 seconds, then zinc oxide, stearic acid, an anti-aging agent, protective wax, carbon black (50%), coumarone resin are put into the internal mixer for further mixing for 150-180 seconds, the rubber discharge temperature is 140-150 ℃, sheets are taken out and cooled, a section of mixed rubber is prepared, and the mixed rubber is used after being placed for 8 hours;
4) and (3) second-stage mixing:
the second-stage mixing uses an internal mixer, the rotor speed of the internal mixer is 20 r/min, the first-stage mixed rubber, sulfur, an accelerant and an anti-scorching agent are put into the internal mixer for mixing for 100 and 120 seconds, the rubber discharge temperature is 90-100 ℃, and the second-stage mixed rubber of the rubber material of the upper and lower covering layers is obtained after sheet discharging and cooling;
(2) preparing a glue layer adhesive material of the nylon impregnated cord fabric:
the nylon impregnated cord fabric rubberizing layer sizing material of the embodiment is common fabric core conveying belt canvas rubberizing layer sizing material;
(3) rubberizing nylon impregnated cord fabric:
hot-pasting the nylon impregnated cord fabric with a glue layer by layer according to the thickness required by the process on the upper and lower surfaces of the nylon impregnated cord fabric by a cold feed extruder and a four-roll calender;
(4) rolling out a sheet:
preparing upper and lower cover layer rubber sheets from the upper and lower cover layer rubber materials according to the thickness required by the process by using a cold feed extruder and a four-roll calender;
(5) and (3) slab forming:
firstly, sticking rubberized cord fabrics together according to the number of layers required by the process by a forming machine, then sticking the rubberized cord fabrics with upper and lower covering layer films, and performing cold pressing to prepare a plate blank;
(6) plate vulcanization:
vulcanizing the plate blank by a vulcanizing press according to the pressure, temperature and time required by the process;
(7) scribing:
marking a line on the plate blank according to the drawing size requirement;
(8) cutting:
cutting the plate blank into the size required by the drawing according to the marking lines;
(9) punching:
inputting technical parameters of the sieve plate into a computer, and automatically punching holes on the plate blank by an automatic punching machine;
(10) assembling:
the tensioning hook, the fixing flat iron and the fixing screw are assembled with the punched rubber sieve plate through an automatic assembling machine, namely the rubber sieve plate with wear resistance, cold resistance and impact resistance is the rubber sieve plate with the embodiment
Example 3
The embodiment provides a wear-resisting cold-resistant rubber sieve plate that shocks resistance, including nylon gumming cord fabric casing ply, nylon gumming cord fabric rubberizing layer, upper covering glue film, lower covering glue film and sieve mesh, its characterized in that, upper covering glue film, lower covering glue film constitute by following component according to the weight ratio:
30 parts of NR, 150020 parts of SBR, 900050 parts of BR, 6 parts of zinc oxide, 1 part of stearic acid, 1.5 parts of sulfur, 1 part of accelerator CZ, 0.5 part of accelerator TMTD, 2 parts of anti-aging agent RD, 40201 parts of anti-aging agent, 1 part of protective wax, 1 part of anti-scorching agent CTP, N23460 parts of carbon black, 4 parts of CMoSSI wear-resistant agent, 4 parts of coumarone resin and 4 parts of aromatic oil.
The CMoSSI wear-resistant agent is a composition of graphite powder with the fineness of 1000 meshes, molybdenum disulfide with the fineness of 1000 meshes and a Si69 silane coupling agent, and the mass ratio of the three components is 75%/23%/2%.
The rubber sieve plate with the wear resistance, the cold resistance and the impact resistance is 30mm thick, the framework layer is three layers of 2100dtex/2 type nylon 66 dipped cord fabric, the thickness of the upper covering rubber layer is 17mm, and the thickness of the lower covering rubber layer is 8.5 mm.
In the rubber sieve plate with wear resistance, cold resistance and impact resistance, the sieve pores are square pores, and the size of the sieve pores is 65 x 65 mm.
The embodiment provides a method for manufacturing a wear-resistant, cold-resistant and impact-resistant rubber sieve plate, which comprises the following steps:
(1) preparing an upper covering layer sizing material and a lower covering layer sizing material:
the upper and lower covering layer rubber compound comprises the following components in percentage by weight:
30 parts of NR, 150020 parts of SBR, 900050 parts of BR, 6 parts of zinc oxide, 1 part of stearic acid, 1.5 parts of sulfur, 1 part of accelerator CZ, 0.5 part of accelerator TMTD, 2 parts of anti-aging agent RD, 40201 parts of anti-aging agent, 1 part of protective wax, 1 part of anti-scorching agent CTP, N23460 parts of carbon black, 4 parts of CMoSSI wear-resistant agent, 4 parts of coumarone resin and 4 parts of aromatic oil.
Preparing the mixture into a two-stage rubber compound:
1) plasticating natural rubber:
plasticating the natural rubber by using an internal mixer, wherein the rotor speed of the internal mixer is 40 r/min, the plasticating time is 180-;
2) preparing a CmoSSI wear-resistant agent:
putting graphite powder with the fineness of 1000 meshes and molybdenum disulfide with the fineness of 1000 meshes into a kneader, heating and stirring at the stirring speed of 350-400 r/min, heating to 40-60 ℃, spraying a Si69 silane coupling agent, continuously heating and stirring, and stirring at the temperature of 110-120 ℃ for 10-15 min to prepare the CMoSSI wear-resistant agent, wherein the mass ratio of the graphite powder/the molybdenum disulfide/the Si69 in the CMoSSI wear-resistant agent is 75%/23%/2%;
3) first-stage mixing:
firstly, plasticated natural rubber, styrene butadiene rubber and butadiene rubber are put into an internal mixer for mixing for 40-50 seconds, carbon black (50%), a CMoSSI wear-resistant agent and aromatic oil are put into the internal mixer, mixing is continued for 150-180 seconds, then zinc oxide, stearic acid, an anti-aging agent, protective wax, carbon black (50%), coumarone resin are put into the internal mixer for further mixing for 150-180 seconds, the rubber discharge temperature is 140-150 ℃, sheets are taken out and cooled, a section of mixed rubber is prepared, and the mixed rubber is used after being placed for 8 hours;
4) and (3) second-stage mixing:
an internal mixer is used in the second-stage mixing, the rotor speed of the internal mixer is 20 r/min, the first-stage mixed rubber, sulfur, an accelerant and an anti-scorching agent are put into the internal mixer for mixing for 100 and 120 seconds, the rubber discharge temperature is 90-100 ℃, the rubber is discharged and cooled, the second-stage mixed rubber of the rubber materials of the upper and lower covering layers is prepared, and the second-stage mixed rubber is used after being placed for 8 hours;
(2) preparing a glue layer adhesive material of the nylon impregnated cord fabric:
the nylon impregnated cord fabric rubberizing layer sizing material of the embodiment is common fabric core conveying belt canvas rubberizing layer sizing material;
(3) rubberizing nylon impregnated cord fabric:
hot-pasting the nylon impregnated cord fabric adhesive layer rubber material on the upper surface and the lower surface of the nylon impregnated cord fabric according to the thickness required by the process by a cold feed extruder and a four-roller calender;
(4) rolling out a sheet:
preparing upper and lower cover layer rubber sheets from the upper and lower cover layer rubber materials according to the thickness required by the process by using a cold feed extruder and a four-roll calender;
(5) and (3) slab forming:
firstly, sticking rubberized cord fabrics together according to the number of layers required by the process by a forming machine, then sticking the rubberized cord fabrics with upper and lower covering layer films, and performing cold pressing to prepare a plate blank;
(6) plate vulcanization:
vulcanizing the plate blank by a vulcanizing press according to the pressure, temperature and time required by the process;
(7) scribing:
marking a line on the plate blank according to the drawing size requirement;
(8) cutting:
cutting the plate blank into the size required by the drawing according to the marking lines;
(9) punching:
inputting technical parameters of the sieve plate into a computer, and automatically punching holes on the plate blank by an automatic punching machine;
(10) assembling:
the tensioning hook, the fixing flat iron and the fixing screw are assembled with the punched rubber sieve plate through an automatic assembling machine, and the rubber sieve plate is the wear-resistant, cold-resistant and impact-resistant rubber sieve plate.
The test data for the above examples are shown in the following table:
Claims (6)
1. the utility model provides a wear-resisting cold-resistant rubber sieve that shocks resistance, includes nylon gumming cord fabric casing layer, nylon gumming cord fabric rubberizing layer, upper covering glue film, lower covering glue film and sieve mesh, its characterized in that, upper covering glue film, lower covering glue film constitute by following component according to the weight ratio:
20-30 parts of natural rubber NR, 150020-30 parts of styrene butadiene rubber SBR, 900050 parts of butadiene rubber, 4-6 parts of zinc oxide, 1-3 parts of stearic acid, 1.5-2.0 parts of sulfur, 1.5-2.0 parts of an accelerator, 2-3 parts of an anti-aging agent, 1-2 parts of a protective wax, 0.5-1 part of a scorch retarder CTP, 50-60 parts of carbon black N23450, 4-6 parts of a CMoSSI wear-resistant agent, 4-6 parts of coumarone resin and 2-4 parts of aromatic oil.
2. The wear-resistant cold-resistant impact-resistant rubber screen plate as claimed in claim 1, wherein: the promoter is a combination of a promoter CZ and a promoter TMTD.
3. The wear-resistant cold-resistant impact-resistant rubber screen plate as claimed in claim 1, wherein: the anti-aging agent is a combination of an anti-aging agent RD and an anti-aging agent 4020.
4. The wear-resistant cold-resistant impact-resistant rubber screen plate as claimed in claim 1, wherein: the CMoSSI wear-resistant agent is a composition of graphite powder with the fineness of 1000 meshes, molybdenum disulfide with the fineness of 1000 meshes and a Si69 silane coupling agent, and the mass ratio of the three components is 75%/23%/2%.
5. The wear-resistant cold-resistant impact-resistant rubber screen plate as claimed in claim 1, wherein: the framework layer of the nylon impregnated cord fabric is formed by overlapping 1-3 layers of rubberized nylon impregnated cord fabrics, and the nylon impregnated cord fabric is selected from 2100dtex/2 type and 1400dtex/3 type nylon 6 or nylon 66 impregnated cord fabric.
6. The method for preparing the wear-resistant cold-resistant impact-resistant rubber sieve plate as claimed in claim 1, which is characterized by comprising the following steps:
(1) preparing an upper covering layer sizing material and a lower covering layer sizing material:
the sizing materials of the upper and lower covering glue layers comprise the following components in percentage by weight:
20-30 parts of Natural Rubber (NR), 20-30 parts of styrene-butadiene rubber (SBR 1500), 50 parts of butadiene rubber (BR 9000), 4-6 parts of zinc oxide, 1-3 parts of stearic acid, 1.5-2.0 parts of sulfur, 1.5-2.0 parts of an accelerator, 2-3 parts of an anti-aging agent, 1-2 parts of protective wax, 0.5-1 part of a scorch retarder CTP, 50-60 parts of carbon black (N234), 4-6 parts of a CMoSSI wear-resistant agent, 4-6 parts of coumarone resin and 2-4 parts of aromatic oil;
preparing the mixture into a two-stage rubber compound of an upper covering layer rubber compound and a lower covering layer rubber compound:
1) plasticating natural rubber:
plasticating the natural rubber by using an internal mixer, wherein the rotor speed of the internal mixer is 40 r/min, the plasticating time is 180-;
2) preparing a CmoSSI wear-resistant agent:
putting graphite powder with the fineness of 1000 meshes and molybdenum disulfide with the fineness of 1000 meshes into a kneader, heating and stirring at the stirring speed of 350-400 r/min, heating to 40-60 ℃, spraying a Si69 silane coupling agent, continuously heating and stirring, and stirring at the temperature of 110-120 ℃ for 10-15 min to prepare the CMoSSI wear-resistant agent, wherein the mass ratio of the graphite powder/the molybdenum disulfide/the Si69 in the CMoSSI wear-resistant agent is 75%/23%/2%;
3) first-stage mixing:
firstly, plasticated natural rubber, styrene butadiene rubber and butadiene rubber are put into an internal mixer for mixing for 40-50 seconds, 50% of carbon black, CMoSSI wear-resistant agent and aromatic oil are put into the internal mixer, mixing is continued for 180 seconds after 150-fold addition of materials, then zinc oxide, stearic acid, anti-aging agent, protective wax, 50% of carbon black and coumarone resin are put into the internal mixer for 180 seconds after 150-fold addition of materials, the rubber discharge temperature is 140-fold addition of materials at 150 ℃, sheets are taken out and cooled, a section of mixed rubber is prepared, and the mixed rubber is used after being placed for 8 hours;
4) and (3) second-stage mixing:
an internal mixer is used in the second-stage mixing, the rotor speed of the internal mixer is 20 r/min, the first-stage mixed rubber, sulfur, an accelerant and an anti-scorching agent are put into the internal mixer for mixing for 100 and 120 seconds, the rubber discharge temperature is 90-100 ℃, the rubber is discharged and cooled, the second-stage mixed rubber of the rubber materials of the upper and lower covering layers is prepared, and the second-stage mixed rubber is used after being placed for 8 hours;
(2) preparing a nylon impregnated cord fabric adhesive layer sizing material;
(3) rubberizing the nylon dipped cord fabric;
(4) rolling out the sheet;
(5) forming a plate blank;
(6) vulcanizing a flat plate;
(7) scribing;
(8) cutting;
(9) punching;
(10) and (6) assembling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911122894.0A CN110776677A (en) | 2019-11-16 | 2019-11-16 | Wear-resistant cold-resistant impact-resistant rubber sieve plate and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911122894.0A CN110776677A (en) | 2019-11-16 | 2019-11-16 | Wear-resistant cold-resistant impact-resistant rubber sieve plate and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110776677A true CN110776677A (en) | 2020-02-11 |
Family
ID=69391649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911122894.0A Pending CN110776677A (en) | 2019-11-16 | 2019-11-16 | Wear-resistant cold-resistant impact-resistant rubber sieve plate and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110776677A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105061826A (en) * | 2015-08-06 | 2015-11-18 | 陆月霞 | Wear-resistant rubber |
| CN105295136A (en) * | 2015-11-03 | 2016-02-03 | 无锡宝通科技股份有限公司 | Super-cutting-resistant rubber material for sieve plate of vibrating screen and preparation method thereof |
| CN105713264A (en) * | 2016-05-09 | 2016-06-29 | 郭秀珍 | Wear-resistant glove for electric power |
-
2019
- 2019-11-16 CN CN201911122894.0A patent/CN110776677A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105061826A (en) * | 2015-08-06 | 2015-11-18 | 陆月霞 | Wear-resistant rubber |
| CN105295136A (en) * | 2015-11-03 | 2016-02-03 | 无锡宝通科技股份有限公司 | Super-cutting-resistant rubber material for sieve plate of vibrating screen and preparation method thereof |
| CN105713264A (en) * | 2016-05-09 | 2016-06-29 | 郭秀珍 | Wear-resistant glove for electric power |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104692027B (en) | Preparation method of basalt fiber conveying belt | |
| CN103753901B (en) | Preparation method of energy-saving high-strength carbon fiber conveying belt | |
| CN102604174B (en) | White carbon black reinforced high-wear-resistance covering rubber and preparation method thereof | |
| CN102942714A (en) | Energy-saving high strength aramid fiber conveyer belt and preparation method thereof | |
| CN110684247A (en) | Energy-saving wear-resistant steel wire rope core conveying belt and manufacturing method thereof | |
| CN1986625A (en) | Damping rubber block material for automobile | |
| CN104693537B (en) | A kind of oil resistant flame-retardant textile core conveyer belt | |
| CN102101990A (en) | Special adhesive layer and preparation method thereof | |
| CN110845777A (en) | Energy-saving wear-resistant low-smoke halogen-free flame-retardant steel wire rope core conveying belt and manufacturing method thereof | |
| CN102775688A (en) | High temperature resistant core glue for conveyer belt and preparation method thereof | |
| CN110843291A (en) | Energy-saving wear-resistant low-smoke halogen-free fabric laminated flame-retardant conveyor belt and preparation method thereof | |
| CN102585732A (en) | Intermediate adhesive for high-heat-resistant conveying belt and preparation method thereof | |
| CN109705412A (en) | A kind of oil resistant conveyer and its preparation process | |
| CN103012979A (en) | Rubber composition with low breathability | |
| CN114702917A (en) | Environment-friendly fabric core conveyer belt rubberizing and preparation method thereof | |
| CN102093599A (en) | High performance magnetic rubber composite and electromagnetic shielding gasket thereof | |
| CN102002175A (en) | Rubber and plastic mixture module and manufacturing method thereof | |
| CN110655699A (en) | Energy-saving wear-resistant mill rubber lining plate and manufacturing method thereof | |
| CN110776677A (en) | Wear-resistant cold-resistant impact-resistant rubber sieve plate and manufacturing method thereof | |
| CN110684248A (en) | Wear-resistant cold-resistant impact-resistant steel wire rope core conveying belt and manufacturing method thereof | |
| CN110834450A (en) | Wear-resistant cold-resistant impact-resistant fabric core conveying belt and manufacturing method thereof | |
| CN110643088A (en) | Wear-resistant cold-resistant impact-resistant rubber composite material and preparation method thereof | |
| CN103467801A (en) | Conveyer belt cover rubber with strong tensile strength and wear resistance and preparation method thereof | |
| CN102850600B (en) | Rubber track plastics for engineering vehicle and preparation method thereof. | |
| CN110804227A (en) | Energy-saving wear-resistant fabric core conveying belt and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200211 |
|
| RJ01 | Rejection of invention patent application after publication |