CN110283367A - Super abrasive conveyer belt coating rubber and preparation method thereof - Google Patents
Super abrasive conveyer belt coating rubber and preparation method thereof Download PDFInfo
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- CN110283367A CN110283367A CN201910641272.2A CN201910641272A CN110283367A CN 110283367 A CN110283367 A CN 110283367A CN 201910641272 A CN201910641272 A CN 201910641272A CN 110283367 A CN110283367 A CN 110283367A
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- 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
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- 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
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- 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
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- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/068—Ultra high molecular weight polyethylene
Abstract
The present invention relates to a kind of super abrasive conveyer belt coating rubbers comprising following each component: nanotube-natural rubber, butadiene-styrene rubber, butadiene rubber, anti-aging agent, nano zine oxide, stearic acid, softening agent, high styrene resin, reinforcing agent, pomegranate stone powder, ultra-high molecular weight polyethylene micro mist, sulphur and promotor；Preparation method include: plasticate, one section be kneaded, two-stage mixing and vulcanization.Super abrasive conveyer belt coating rubber material of the invention is applied to fabric core and steel cable core conveying belt, so that conveyer belt product is while keeping good physical mechanical property, has excellent antiwear characteristic, the service life of conveyer belt can substantially be extended, reduce the replacement frequency of conveyer belt, save the cost improves production efficiency.
Description
Technical field
The present invention relates to a kind of super abrasive conveyer belt coating rubbers and preparation method thereof, and the invention belongs to conveyer belt production technologies
Field.
Background technique
Super abrasive conveyer belt is mainly used for the industries such as mining site, harbour, is mainly used for transporting ore.In order to improve conveyer belt
Service life needs to improve the wear-resisting property of conveyor belt surface rubber cover.
Conveyer belt can be effectively improved as the covering glue material of transported material by formula design ultra-wearable rubber material
Wear-resisting property, to improve the service life of conveyer belt.
Summary of the invention
An object of the present invention is to overcome the deficiencies in the prior art, provide a kind of wear-resisting property it is good, using the longevity
Order long super abrasive conveyer belt coating rubber.
It is a further object of the present invention to provide a kind of preparation methods of super abrasive conveyer belt coating rubber.
According to technical solution provided by the invention, the super abrasive conveyer belt coating rubber includes following each component: 5~20 weights
Measure part nanotube-natural rubber, 5~30 parts by weight butadiene-styrene rubber, 50~90 parts by weight butadiene rubbers, 4~6 parts by weight anti-aging agents, 2
~5 parts by weight nano zine oxides, 1~3 parts by weight stearic acid, 1~6 parts by weight softening agent, 1~5 parts by weight of styrene resin, 30
~50 parts by weight reinforcing agents, 1~10 parts by weight pomegranate stone powder, 1~5 parts by weight ultra-high molecular weight polyethylene micro mist, 1~2.5
Parts by weight sulphur and 1~1.5 parts by weight promotor；
After nanotube-natural rubber is plasticated on a mill, put into together with butadiene-styrene rubber, butadiene rubber in mixer into
Row is kneaded, and anti-aging agent is then added, stearic acid, nano zine oxide, softening agent, carbon black, garnet micro mist, styrene resin, surpasses
High molecular weight polyethylene micro mist is refined；It turns refining after mixer discharge, obtains one section of film；One section of film slice is laggard
Row water cooling is parked；By in one section of film investment mixer, at the same promotor is added, sulphur is refined；Mixer discharge is laggard
Row turns refining, and slice carries out water cooling, parks after turning refining, and obtains two sections of films；It is pressed after film is carried out heat refining on a mill
Piece obtains super abrasive conveyer belt coating rubber.
The nanotube-natural rubber is nanoclay natural rubber NCR.
The anti-aging agent is one of anti-aging agent RD, antioxidant 4020, microwax or a variety of；
The softening agent is one of aromatic naphtha, light dydrocarbon resin, coumarone or a variety of；
The reinforcing agent is one or both of carbon black N220, N234, N326；
The promotor is one or both of accelerator NS, accelerant CZ, promotor TT；
The pomegranate stone powder is the pomegranate stone powder of 1250 mesh, and main component is silica, and silica
Weight percentage is 97%.
The molecular weight of the ultra-high molecular weight polyethylene micro mist is 200-900 ten thousand.
The weight percentage of styrene is 80% in the styrene resin.
A kind of preparation method of super abrasive conveyer belt coating rubber the following steps are included:
(1) it plasticates: 5~20 parts by weight nanotube-natural rubbers is plasticated on a mill, the roller temperature of open mill is 30
~50 DEG C, the time of plasticating is 5~10 minutes；
(2) one sections of mixings: nanotube-natural rubber and 5~30 parts by weight butylbenzene rubbers after plasticating first are added into mixer
Glue, 50~90 parts by weight butadiene rubbers, smelting temperature are 30~40 DEG C, are refined 1~2 minute；Then it is anti-that 4~6 parts by weight are added
Old agent, 2~5 parts by weight nano zine oxides, 1~3 parts by weight stearic acid, 1~6 parts by weight softening agent, 1~5 parts by weight of styrene
Resin, 30~50 parts by weight reinforcing agents, 1~10 parts by weight garnet micro mist, 1~5 parts by weight ultra-high molecular weight polyethylene micro mist,
Refining the time is 3~5 minutes, and refining temperature is 40~90 DEG C；After mixer dumping, then turned refining with open mill, open mill
Roller temperature is 40~60 DEG C, and roll spacing is adjusted to 1~1.5mm, is turned around for Bao Tong 3~4 times and 90 °；Finally adjustment roll spacing goes out to 8~10mm
Piece is placed in cooler pan after slice, and temperature is controlled at 20~40 DEG C, obtains one section of rubber compound after parking 6h；
(3) two-stage mixing: being adjusted to 8~10mm for open mill roll spacing, is put into one section of 3~4min of rubber compound freshening；Then plus
Enter 1~2.5 parts by weight sulphur, 1~1.5 parts by weight promotor, be kneaded 6~8min, melting temperature is 35~60 DEG C；By roll spacing tune
To 1~1.5mm, Bao Tong 3~4 times, roll spacing is then adjusted to 1.8~2.2mm, left and right cutting turns refining and slice, obtains two sections and mixes
Refining glue；
(4) vulcanize: the two-stage mixing glue that step (3) obtains being vulcanized on vulcanizing press, curing temperature 150
~155 DEG C, sulfide stress is 10~15MPa, and vulcanization time is 30~40min, obtains the super abrasive conveyer belt coating rubber.
Super abrasive conveyer belt coating rubber material of the invention is applied to fabric core and steel cable core conveying belt, so that conveyer belt
Product has excellent antiwear characteristic while keeping good physical mechanical property, can substantially extend making for conveyer belt
With the service life, the replacement frequency of conveyer belt is reduced, save the cost improves production efficiency.
Specific embodiment
The present invention is further explained in the light of specific embodiments.
In the present invention, nanoclay natural rubber NCR it by the advanced native rubber composite material engineering research in Hainan Province
Heart Co., Ltd provides, model NCR.
In the present invention, the molecular weight of ultra-high molecular weight polyethylene micro mist is 200-900 ten thousand, it is by the luxuriant and rich with fragrance sharp enlightening new material in Nanjing
Science and Technology Ltd. provides, model ATT-UHMWPE.
In the present invention, styrene resin is provided by Yantai Shi Yuan limited rubber company, model HS-80.
Embodiment 1
(1) it plasticates: 10 parts by weight nanotube-natural rubbers is plasticated on a mill, the roller temperature of open mill is 30 DEG C,
Plasticate the time be 5 minutes；
(2) one sections mixing: first into mixer be added plasticate after nanotube-natural rubber and 10 parts by weight butadiene-styrene rubber,
80 parts by weight butadiene rubbers are refined 1 minute, and smelting temperature is 30 DEG C；Then it is anti-old that 1 parts by weight anti-aging agent RD, 1 parts by weight are added
Agent 4020,2 parts by weight microwaxes, 2 parts by weight nano zine oxides, 1 parts by weight stearic acid, 1 parts by weight light dydrocarbon resin, 1 parts by weight
Styrene resin, 20 parts by weight reinforcing agent carbon black N326,10 parts by weight reinforcing agent carbon black N234,1 parts by weight garnet micro mist, 1
Parts by weight ultra-high molecular weight polyethylene micro mist, refining time are 3 minutes, and refining temperature is 40 DEG C；After mixer dumping, then with opening
Mill turns refining, and open mill roller temperature is 40 DEG C, and roll spacing is adjusted to 1mm, turns around for Bao Tong 3 times and 90 °；Finally adjustment roll spacing is extremely
8mm, slice.It is placed in cooler pan, temperature is controlled at 20 DEG C, obtains one section of rubber compound after parking 6h；
(3) two-stage mixing: being adjusted to 8mm for open mill roll spacing, is put into one section of rubber compound freshening 3min；Then 2.5 weights are added
Part sulphur, 0.9 parts by weight accelerant CZ, 0.1 parts by weight promotor TT are measured, 6min is kneaded, melting temperature is 35 DEG C；By roll spacing tune
To 1mm, Bao Tong 3 times, roll spacing is then adjusted to 1.8mm, left and right cutting turns refining and slice, obtains two-stage mixing glue；
(4) vulcanize: the two-stage mixing glue that step (3) obtains being vulcanized on vulcanizing press, curing temperature 150
DEG C, sulfide stress 10MPa, vulcanization time 30min obtain the super abrasive conveyer belt coating rubber material.The rubber cover
The physical mechanical property of material is as shown in table 1.
Embodiment 2
(1) it plasticates: 20 parts by weight nanotube-natural rubbers is plasticated on a mill, the roller temperature of open mill is 50 DEG C,
Plasticate the time be 10 minutes；
(2) one sections mixing: first into mixer be added plasticate after nanotube-natural rubber and 30 parts by weight butadiene-styrene rubber,
50 parts by weight butadiene rubbers are refined 2 minutes, and smelting temperature is 40 DEG C；Then it is anti-old that 2 parts by weight anti-aging agent RDs, 2 parts by weight are added
Agent 4020,2 parts by weight microwaxes, 5 parts by weight nano zine oxides, 3 parts by weight stearic acid, 3 parts by weight aromatic naphtha, 3 parts by weight are ancient
Ma Long, 5 parts by weight of styrene resins, 50 parts by weight reinforcing agent carbon black N220,10 parts by weight garnet micro mists, 5 parts by weight superelevation
Molecular weight polyethylene micro mist, refining time are 5 minutes, and refining temperature is 90 DEG C；After mixer dumping, then turned over open mill
Refining, open mill roller temperature are 60 DEG C, and roll spacing is adjusted to 1.5mm, are turned around for Bao Tong 4 times and 90 °；Roll spacing is finally adjusted to 10mm, slice.
It is placed in cooler pan, temperature is controlled at 40 DEG C, obtains one section of rubber compound after parking 6h；
(3) two-stage mixing: being adjusted to 10mm for open mill roll spacing, is put into one section of rubber compound freshening 4min；Then 1 weight is added
Part sulphur, 1.5 parts by weight accelerator NSs, are kneaded 8min, and melting temperature is 60 DEG C；Roll spacing is adjusted to 1.5mm, Bao Tong 4 times, then
Roll spacing is adjusted to 2.2mm, left and right cutting turns refining and slice, obtains two-stage mixing glue；
(4) vulcanize: the two-stage mixing glue that step (3) obtains being vulcanized on vulcanizing press, curing temperature 155
DEG C, sulfide stress 15MPa, vulcanization time 40min obtain the super abrasive conveyer belt coating rubber material.The rubber cover
The physical mechanical property of material is as shown in table 1.
Embodiment 3
(1) it plasticates: 5 parts by weight nanotube-natural rubbers is plasticated on a mill, the roller temperature of open mill is 50 DEG C, modeling
Refining the time is 10 minutes；
(2) one sections mixing: first into mixer be added plasticate after nanotube-natural rubber and 5 parts by weight butadiene-styrene rubber,
90 parts by weight butadiene rubbers are refined 2 minutes, and smelting temperature is 40 DEG C；Then it is anti-old that 2 parts by weight anti-aging agent RDs, 2 parts by weight are added
Agent 4020,1 parts by weight microwax, 4 parts by weight nano zine oxides, 2 parts by weight stearic acid, 2 parts by weight aromatic naphtha, 1 parts by weight are ancient
Ma Long, 3 parts by weight of styrene resins, 40 parts by weight reinforcing agent carbon black N220,6 parts by weight garnet micro mists, 3 parts by weight superelevation point
Sub- weight northylen micro mist, refining time are 5 minutes, and refining temperature is 90 DEG C；After mixer dumping, then turned over open mill
Refining, open mill roller temperature are 60 DEG C, and roll spacing is adjusted to 1.5mm, are turned around for Bao Tong 4 times and 90 °；Roll spacing is finally adjusted to 10mm, slice.
It is placed in cooler pan, temperature is controlled at 40 DEG C, obtains one section of rubber compound after parking 6h；
(3) two-stage mixing: being adjusted to 10mm for open mill roll spacing, is put into one section of rubber compound freshening 4min；Then 2 weight are added
Part sulphur, 1.3 parts by weight accelerator NSs, are kneaded 8min, and melting temperature is 60 DEG C；Roll spacing is adjusted to 1.5mm, Bao Tong 4 times, then
Roll spacing is adjusted to 2.2mm, left and right cutting turns refining and slice, obtains two-stage mixing glue；
(4) vulcanize: the two-stage mixing glue that step (3) obtains being vulcanized on vulcanizing press, curing temperature 155
DEG C, sulfide stress 15MPa, vulcanization time 40min obtain the super abrasive conveyer belt coating rubber material.The rubber cover
The physical mechanical property of material is as shown in table 1.
Comparative example 1
(1) it plasticates: 20 parts by weight of natural rubber is plasticated on a mill, the roller temperature of open mill is 50 DEG C, is plasticated
Time is 10 minutes；
(2) one sections of mixings: natural rubber and 30 parts by weight butadiene-styrene rubber, 50 weights after plasticating first are added into mixer
Part butadiene rubber is measured, is refined 2 minutes, smelting temperature is 40 DEG C；Then 2 parts by weight anti-aging agent RDs, 2 parts by weight anti-aging agents are added
4020,2 parts by weight microwaxes, 5 parts by weight nano zine oxides, 3 parts by weight stearic acid, 3 parts by weight aromatic naphtha, 3 parts by weight Gu horses
Grand, 50 parts by weight reinforcing agent carbon black N220, refining time are 5 minutes, and refining temperature is 90 DEG C；After mixer dumping, then with opening
Mill turns refining, and open mill roller temperature is 60 DEG C, and roll spacing is adjusted to 1.5mm, turns around for Bao Tong 4 times and 90 °；Finally adjustment roll spacing is extremely
10mm, slice.It is placed in cooler pan, temperature is controlled at 40 DEG C, obtains one section of rubber compound after parking 6h；
(3) two-stage mixing: being adjusted to 10mm for open mill roll spacing, is put into one section of rubber compound freshening 4min；Then 1 weight is added
Part sulphur, 1.5 parts by weight accelerator NSs, are kneaded 8min, and melting temperature is 60 DEG C；Roll spacing is adjusted to 1.5mm, Bao Tong 4 times, then
Roll spacing is adjusted to 2.2mm, left and right cutting turns refining and slice, obtains two-stage mixing glue；
(4) vulcanize: the two-stage mixing glue that step (3) obtains being vulcanized on vulcanizing press, curing temperature 155
DEG C, sulfide stress 15MPa, vulcanization time 40min obtain the super abrasive conveyer belt coating rubber material.The rubber cover
Physical mechanical property it is as shown in table 1.
Table 1
| Performance | Embodiment 1 | Embodiment 2 | Embodiment 2 | Comparative example 1 |
| Tensile strength/MPa | 18.2 | 18.5 | 17.1 | 19.5 |
| Elongation rate of tensile failure/% | 553 | 511 | 459 | 534 |
| Roller abrasion/mm3 | 15 | 24 | 10 | 75 |
As shown in table 1, this hair can be seen that by the performance comparison of embodiment 1, embodiment 2, embodiment 3 and comparative example 1
The physical mechanical property of the super abrasive conveyer belt coating rubber of bright design preparation is suitable with conventional wear-resisting formula, using DIN 53516
Wear tested, embodiment 1, embodiment 2, the abrasion loss of embodiment 3 reduce 60%-85%, and abrasion performance characteristic is obviously improved, has
Good antiwear characteristic.
Claims (6)
1. a kind of super abrasive conveyer belt coating rubber, it is characterized in that: it includes following each component: 5 ~ 20 natural rubbers of parts by weight nanometer
Glue, 5 ~ 30 parts by weight butadiene-styrene rubber, 50 ~ 90 parts by weight butadiene rubbers, 4 ~ 6 parts by weight anti-aging agents, 2 ~ 5 parts by weight are nano oxidized
Zinc, 1 ~ 3 parts by weight stearic acid, 1 ~ 6 parts by weight softening agent, 1 ~ 5 parts by weight of styrene resin, 30 ~ 50 parts by weight reinforcing agents, 1 ~ 10
Parts by weight pomegranate stone powder, 1 ~ 5 parts by weight ultra-high molecular weight polyethylene micro mist, 1 ~ 2.5 parts by weight sulphur and 1 ~ 1.5 parts by weight promote
Into agent；
After nanotube-natural rubber is plasticated on a mill, puts into mixer and mixed together with butadiene-styrene rubber, butadiene rubber
Then anti-aging agent, stearic acid, nano zine oxide, softening agent, carbon black, garnet micro mist, styrene resin, superelevation point is added in refining
Sub- weight northylen micro mist is refined；It turns refining after mixer discharge, obtains one section of film；Water is carried out after one section of film slice
It is cold, park；By in one section of film investment mixer, at the same promotor is added, sulphur is refined；It is turned over after mixer discharge
Refining, slice carries out water cooling, parks after turning refining, and obtains two sections of films；Tabletting is carried out after film is carried out heat refining on a mill, is obtained
To super abrasive conveyer belt coating rubber.
2. super abrasive conveyer belt coating rubber as described in claim 1, it is characterized in that: the nanotube-natural rubber is nanoclay
Natural rubber NCR.
3. super abrasive conveyer belt coating rubber as described in claim 1, it is characterized in that: the anti-aging agent is anti-aging agent RD, prevents always
One of agent 4020, microwax are a variety of；
Super abrasive conveyer belt coating rubber as described in claim 1, it is characterized in that: the softening agent be aromatic naphtha, light dydrocarbon resin,
One of coumarone is a variety of；
Super abrasive conveyer belt coating rubber as described in claim 1, it is characterized in that: the reinforcing agent be carbon black N220, N234,
One or both of N326；
Super abrasive conveyer belt coating rubber as described in claim 1, it is characterized in that: the promotor is accelerator NS, promotor
One or both of CZ, promotor TT；
Super abrasive conveyer belt coating rubber as described in claim 1, it is characterized in that: the pomegranate stone powder is the pomegranate of 1250 mesh
Stone powder.
4. super abrasive conveyer belt coating rubber as described in claim 1, it is characterized in that: the ultra-high molecular weight polyethylene micro mist
Molecular weight is 200-900 ten thousand.
5. super abrasive conveyer belt coating rubber as described in claim 1, it is characterized in that: in the styrene resin styrene weight
Measuring percentage composition is 80%.
6. a kind of preparation method of super abrasive conveyer belt coating rubber the following steps are included:
(1) it plasticates: 5 ~ 20 parts by weight nanotube-natural rubbers is plasticated on a mill, the roller temperature of open mill is 30 ~ 50 DEG C,
Plasticate the time be 5 ~ 10 minutes；
(2) one sections of mixings: nanotube-natural rubber and 5 ~ 30 parts by weight butadiene-styrene rubber, 50 after plasticating first are added into mixer
~ 90 parts by weight butadiene rubbers, smelting temperature are 30 ~ 40 DEG C, are refined 1 ~ 2 minute；Then 4 ~ 6 parts by weight anti-aging agents, 2 ~ 5 weights are added
Measure part nano zine oxide, 1 ~ 3 parts by weight stearic acid, 1 ~ 6 parts by weight softening agent, 1 ~ 5 parts by weight of styrene resin, 30 ~ 50 weight
Part reinforcing agent, 1 ~ 10 parts by weight garnet micro mist, 1 ~ 5 parts by weight ultra-high molecular weight polyethylene micro mist, refining time are 3 ~ 5 points
Clock, refining temperature are 40 ~ 90 DEG C；It after mixer dumping, then is turned refining with open mill, open mill roller temperature is 40 ~ 60 DEG C, by roller
Away from being adjusted to 1 ~ 1.5mm, turn around for Bao Tong 3 ~ 4 times and 90 °；Finally adjustment roll spacing is placed on cooler pan after slice to 8 ~ 10mm slice
In, temperature is controlled at 20 ~ 40 DEG C, obtains one section of rubber compound after parking 6h；
(3) two-stage mixing: being adjusted to 8 ~ 10mm for open mill roll spacing, is put into one section of 3 ~ 4min of rubber compound freshening；Then it is added 1 ~ 2.5
Parts by weight sulphur, 1 ~ 1.5 parts by weight promotor, are kneaded 6 ~ 8min, and melting temperature is 35 ~ 60 DEG C；Roll spacing is adjusted to 1 ~ 1.5mm,
It is thin 3 ~ 4 times logical, roll spacing is then adjusted to 1.8 ~ 2.2mm, left and right cutting turns refining and slice, obtains two-stage mixing glue；
(4) vulcanize: the two-stage mixing glue that step (3) obtains is vulcanized on vulcanizing press, curing temperature is 150 ~ 155
DEG C, sulfide stress is 10 ~ 15MPa, and vulcanization time is 30 ~ 40min, obtains the super abrasive conveyer belt coating rubber.
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| CN110951123A (en) * | 2019-12-11 | 2020-04-03 | 浙江威格尔传动股份有限公司 | Manufacturing process of super-wear-resistant belt |
| CN110951123B (en) * | 2019-12-11 | 2021-11-16 | 浙江威格尔传动股份有限公司 | Manufacturing process of super-wear-resistant belt |
| CN112080045A (en) * | 2020-08-28 | 2020-12-15 | 浙江奋飞橡塑制品有限公司 | Covering rubber for carborundum composite conveyor belt and super-wear-resistant diamond-steel-grit rubber conveyor belt |
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| CN113150402A (en) * | 2021-04-14 | 2021-07-23 | 无锡百年通工业输送有限公司 | Formula of energy-saving high-wear-resistance rubber |
| CN113233089A (en) * | 2021-04-18 | 2021-08-10 | 安徽中意胶带有限责任公司 | High-temperature-resistant canvas core flame-retardant conveying belt and manufacturing method thereof |
| CN113233089B (en) * | 2021-04-18 | 2022-12-27 | 安徽中意胶带有限责任公司 | High-temperature-resistant canvas core flame-retardant conveying belt and manufacturing method thereof |
| CN115785541A (en) * | 2022-12-09 | 2023-03-14 | 无锡百年通工业输送有限公司 | High-wear-resistance conveyer belt covering rubber and preparation method thereof |
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