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350 DEG C firing-resistant conveyer belt covering rubber and preparation method thereof
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A technology for covering glue and conveyor belt, applied in the field of covering glue for conveyor belt and its preparation, can solve the problems of low service life, cracks and wear, etc., and achieve the effect of improving service life, good physical properties and excellent flame retardant performance
Active Publication Date: 2013-11-27
QINGDAO HUIYANG MINING BELT
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Problems solved by technology
However, the existing heat-resistant conveyor belt cover rubber formula will soon crack and wear under the condition of 300 ℃ with an open flame, and the service life is low
Method used
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Embodiment 1
[0022] A conveyor belt covering rubber resistant to burning at 350°C. The covering rubber is composed of the following components in the following parts by weight: styrene-butadiene rubber 100, indirect methodzincoxide 5, stearin 1, anti-aging agent (4010NA) 2.0, anti-aging agent (MB) 1.5, antioxidant (RD) 2.0, carbon black (N220) 60, C9 petroleum resin 5.0, coumarone resin 3.0, dispersant 4.0, sulfur 1.5, vulcanization accelerator (TBBS) 2.0, vulcanization accelerator (DM )0.5, 52 # Chlorinated paraffin oil 5.0, coking agent (PNG-6) 12.0.
[0023] Prepare the above-mentioned covering glue weight ratio according to the following steps:
[0024] A) Add styrene-butadiene rubber to the internal mixer, then press the top bolt for 50 seconds to lift the weight, then add activator, resin, anti-aging agent, coking agent, dispersant and 1 / 2 carbon black, press the top bolt for 90 seconds to lift mound, then add the remaining carbon black and 52 # Chlorinated paraffin oil, press t...
Embodiment 2
[0028] A conveyor belt covering rubber resistant to burning at 350°C, the covering rubber is composed of the following components in the following parts by weight: styrene-butadiene rubber 100, indirect methodzincoxide 5, stearin 1, anti-aging agent (4010NA) 2.0, anti-aging agent (MB) 2.5, antioxidant (RD) 1.5, carbon black (N220) 60, C9 petroleum resin 4.0, coumarone resin 4.0, dispersant 4.0, sulfur 1.5, vulcanization accelerator (TBBS) 2.0, vulcanization accelerator (DM )0.5, 52 # Chlorinated paraffin oil 5.0, coking agent (PNG-6) 12.0.
[0029] A) Add styrene-butadiene rubber to the internal mixer, then press the top bolt for 45 seconds to lift the weight, then add activator, resin, anti-aging agent, coking agent, dispersant and 1 / 3 carbon black, press the top bolt for 90 seconds to lift mound, then add the remaining carbon black and 52 # Chlorinated paraffin oil, press the top plug for 120 seconds, reach 120 ° C, 20 rpm to remove glue;
[0030] B) Place the rubber ma...
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Abstract
The invention relates to conveyer belt covering rubber and a preparation method thereof and particularly relates to a 350 DEG G firing-resistant conveyer belt covering rubber and a preparation method thereof. The 350 DEG C firing-resistant conveyer belt covering rubber comprises the following components: 100 parts of butadiene styrene rubber, 3.5-8.5 parts of activating agent, 2.5-6.5 parts of anti-aging agent, 50-70 parts of carbon black, 3.5-5.5 parts of C9 petroleum resin, 2.5-4.5 parts of coumarone resin, 2.5-5.5 parts of dispersing agent, 1.0-5.0 parts of sulphur, 0.8-3.5 parts of vulcanization accelerator, 3.5-7.5 parts of 52# chlorinated paraffin and 8.0-16.0 parts of coking agent. The prepared 350 DEG C firing-resistant conveyer belt covering rubber can be used for conveying a material with the temperature of 350 DEG C, a rubber coked layer is formed on the surface of a conveyer belt body to take a thermal insulation protection effect, and therefore cracking and abrasion of a conveyer belt are avoided and the service life of the conveyer belt is prolonged. The 350 DEG C firing-resistant conveyer belt covering rubber product has good physical properties, low static electricityconductivity and excellent flame retardant property.
Description
technical field [0001] The invention relates to a conveyor belt covering glue and a preparation method thereof, in particular to a 350°C burning-resistant conveyor belt covering glue and a preparation method thereof. Background technique [0002] With the continuous improvement of productivity, industrial and mining enterprises such as steel mills have an increasing demand for conveyor belts. At the same time, because the ambient temperature of conveyor belts is getting higher and higher, even exceeding 800°C, the quality requirements for conveyor belts are getting higher and higher. Especially for the heat resistance and burning resistance of the covering glue on the working surface of the conveyor belt. However, the existing heat-resistant conveyor belt covering glue formula will soon crack and wear under the condition of 300°C with an open flame, and the service life is low. Contents of the invention [0003] The invention aims at the deficiencies in the prior art and ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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