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Preparation method of gearbox cooling water pipe
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A technology for cooling water pipes and gearboxes, which is applied in the automotive field and can solve problems such as thermal stability and sealing that cannot meet the needs and cracks, and achieve the effects of small compression deformation, improved service life, and narrow particle size distribution
Inactive Publication Date: 2017-10-27
ANHUI ZHONGDING HOSE PROD
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Abstract
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Problems solved by technology
Since heavy-duty vehicles, especially dump trucks, are often under conditions of heavy load, idling speed, sharp turn, large accelerator, and sudden braking, and the main component of the transmission cooling water pipe is rubber, the thermal stability and sealing performance cannot meet the requirements. In the process, there will be cracks and other situations, which need to be resolved urgently
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Embodiment 1
[0018] A preparation method for a gearbox cooling water pipe, comprising the steps of:
[0020] S2. Thinly pass the mixed material to form a film;
[0021] S3. Heat and vulcanize the film with a vacuum flat vulcanizer, and continue to vulcanize as the temperature rises to obtain a gearbox cooling water pipe.
Embodiment 2
[0023] A preparation method for a gearbox cooling water pipe, comprising the steps of:
[0024] S1. Plasticize 50 parts of EPDM rubber, 15 parts of nitrile rubber, and 2 parts of methyl vinyl silicone rubber by weight for 4 minutes, then add 7 parts of wood powder, 12 parts of mica powder compound, and 20 parts of sea foam Stone powder, 4 parts of diatomaceous earth, 1 part of zincoxide, 2 parts of stearic acid, 1 part of anti-aging agent, knead for 10 minutes, add 4 parts of dicumyl peroxide, 4 parts of tetramethylthiuram disulfide, 3 parts of color The powder was mixed for 6 minutes to obtain the mixed material;
[0025] S2. Thinly pass the mixed material 2-4 times to form a film with a thickness of 2-4mm;
[0026] S3. Heat the film to 165° C. for 4 minutes with a vacuum plate vulcanizer, and then heat up to 175° C. and continue to vulcanize for 50 seconds to obtain a gearbox cooling water pipe.
Embodiment 3
[0028] A preparation method for a gearbox cooling water pipe, comprising the steps of:
[0029] S1. Plasticize 80 parts of EPDM rubber, 5 parts of nitrile rubber, and 6 parts of methyl vinyl silicone rubber by weight for 2 minutes, then add 10 parts of wood powder, 8 parts of mica powder compound, and 26 parts of sea foam Stone powder, 2 parts of diatomaceous earth, 2 parts of zinc oxide, 1 part of stearic acid, 2 parts of anti-aging agent knead for 5 minutes, add 6 parts of dicumyl peroxide, 2 parts of tetramethylthiuram disulfide, 6 parts of color The powder was mixed for 2 minutes to obtain the mixed material;
[0030] The mica powder compound is prepared by the following process: mix urea and water evenly, add sodiumhydroxide and stir evenly, adjust the temperature, add dropwise magnesiumchlorideaqueous solution, continue stirring, add sodium oleate, mica powder, titanate, continue stirring, Suction filtration, washing, drying, and grinding to obtain the mica powder co...
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Abstract
The invention discloses a preparation method of a gearbox cooling water pipe. The preparation method comprises the following steps of plastifying ethylene propylene diene rubber, nitrile rubber and methyl vinyl silicone rubber; adding wood meal, micapowder complex, sea-foam stone powder, kieselguhr, zincoxide, stearic acid and an anti-aging agent for kneading; adding dicumyl peroxide, tetramethyl thiuram disulfide and a toner for mixing to obtain a mixture; carrying out thin-passing on the mixture and forming a film; and heating and vulcanizing the film by using a vacuum plate vulcanizing machine, raising the temperature and further vulcanizing to obtain the gearbox cooling water pipe. The preparation method is simple, low in cost, convenient to actual operation, and the obtained gearbox cooling water pipe is good in heat resistance, small in compressive deformation at a high temperature, good in sealing effect, free of leakage and long in service life.
Description
technical field [0001] The invention relates to the technical field of automobiles, in particular to a preparation method of a gearbox cooling water pipe. Background technique [0002] During the working period of the automobile engine, the maximum combustion temperature may be as high as 2500 ℃, and the parts in contact with the high-temperature gas are strongly heated. If it is not properly cooled, the engine will overheat, the inflation coefficient will decrease, and the combustion will be abnormal, resulting in deflagration and early combustion. Wait. Heavy-duty vehicles equipped with automatic transmissions generally use oil coolers to cool the automatic transmission oil. In order to make rational use of resources and compact installation, the automatic transmission oil coolers are generally connected in series to the engine cooling circuit, and the coolant in the engine cooling water tank As the cooling medium of the automatic transmission oil cooler, it exchanges hea...
Claims
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Application Information
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