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An elastic rubber pad and a production process technology, applied in the field of rubber, can solve the problems of easy permanent deformation, large rubber loss factor, and high price of natural rubber, and achieve the effects of increased elasticity, long service life, and not easy permanent deformation
Inactive Publication Date: 2016-08-03
BENGBU LONGHUA DIE CASTING MACHINE CO LTD
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Problems solved by technology
Although NR has a small loss factor, it has the best overall performance, excellent elasticity, good fatigue resistance, low heat generation, small creep, good adhesion to metal parts, cold resistance, electrical insulation and processing performance. , so NR is widely used for shock absorption purposes, but a single type of rubber has certain weaknesses, the price of natural rubber is high, and some rubbers have a large loss factor, and some rubbers are weak and prone to permanent deformation. Some have low toughness and are easy to crack
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Embodiment 1
[0021] A kind of production technology of elastic rubber pad, comprises the following steps,
[0022] (5), ingredients: equipped with raw materials, raw materials include 20 parts of natural rubber, 20 parts of styrene-butadiene rubber, 10 parts of nitrile rubber, 3 parts of toughening agent, 3 parts of elastic agent, 0.2 parts of calcium zincate, quartz powder by weight 3 parts, 3 parts of bentonite, 1 part of zinc oxide, 0.05 parts of stearic acid, 0.3 parts of plasticizer and 30 parts of anti-aging agent; the elastic agent is butyl conjugated diene, pentaerythritol oleate and maleic acid glycoside, the three The addition ratio is 1:2:1;
[0023] (6) Mixing: Fully mix the other substances in the raw materials except the elastic agent and put them into the mixer for mixing treatment. The mixing temperature is 70°C, and the mixing time is 20 minutes, and then lowered When the temperature reaches 40°C, add the powdered elastic agent and knead for 10 minutes;
[0024] (7) Mold...
Embodiment 2
[0031] A kind of production technology of elastic rubber pad, comprises the following steps,
[0032] (9), ingredients: equipped with raw materials, raw materials include 30 parts by weight of natural rubber, 30 parts of styrene-butadiene rubber, 20 parts of nitrile rubber, 8 parts of toughening agent, 8 parts of elastic agent, 1 part of calcium zincate, quartz powder 8 parts, 8 parts of bentonite, 1.5 parts of zinc oxide, 0.08 parts of stearic acid, 0.5 parts of plasticizer, and 30 parts of anti-aging agent; The addition ratio is 1:2:1;
[0033] (10) Mixing: Fully mix the other substances in the raw materials except the elastic agent and then put them into the mixer for mixing treatment. The mixing temperature is 80°C, and the mixing time is 30 minutes, and then reduce When the temperature reaches 60°C, add the powdered elastic agent and knead for 20 minutes;
[0034] (11), mold forming: use mold to carry out molding process to the raw material after kneading, then cool;
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Abstract
The invention relates to the technical field of rubber, in particular to a production technology of an elastic rubber pad. The production technology includes the following steps of preparation, wherein raw materials are prepared and include natural rubber, butadiene-styrene rubber, nitrile-butadiene rubber, a toughener, an elasticizer, calcium zincate, quartz powder, bentonite, zinc oxide, stearic acid, a plasticizer and an antiager, and the elasticizer includes butyl conjugated diene, pentaerythritol oleate and maleic anhydride at the addition proportion of 1:2:1; mixing, wherein the substances, except the elasticizer, in the raw materials are fully mixed and then put into a mixer for mixing treatment; mould forming, wherein the raw materials obtained after mixing are subjected to forming treatment with a mould and then cooled; vertical stress removing treatment, wherein formed rubber is soaked in clear water and then cooked for 5-10 min at 80-100 DEG C. The rubber produced with the production technology is low in price, high in elasticity and toughness, long in service life and not prone to permanent deformation.
Description
Technical field: [0001] The invention relates to the technical field of rubber, in particular to a production process of an elastic rubber pad. Background technique: [0002] The loss factor of the rubber material used for shock absorption is not only related to the structure of the rubber itself, but also related to temperature and frequency. At normal temperature, the loss factor of natural rubber (NR) and butadiene rubber (BR) is small, styrene-butadiene rubber (SBR), neoprene rubber (CR), ethylene-propylene rubber (EPR), polyurethane rubber (PU) and silicone rubber The loss factor is in the middle, and the loss factor of butyl rubber (HR) and nitrile rubber (NBR) is the largest. [0003] There are generally five types of rubber materials used for shock absorption, namely NR, SBR, and BR are ordinary rubber materials; NBR is used for oil-resistant vulcanized rubber; CR is used for weather-resistant vulcanized rubber; IIR is used for high damping vulcanized rubber; Heat ...
Claims
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Application Information
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