Hydraulic O-ring-ring silicone rubber PRECAUTIONSHydraulic O-ring-ring silicone rubber PRECAUTIONS

Hydraulic kneading silicone O-ring in accordance with the requirements of the specimen thickness showings must be cooked into after showings, stored in a rubber warehouse, placed on a flat, clean, dry metal plate is cooled to room temperature (efficient management method is to Make rubber deposited on the trolley to move freely), and then at 23 +/- 2 ? condition, parking 22-24 hours, and to prevent moisture absorption. Silicone back when needed refining, refining shall return roller pitch, roll back requirements mild refining time will be.

When storing mix should be properly managed, it may have quality problems, such as mild scorch like. Silica during storage, the temperature must be controlled and shorten storage time, to avoid scorching. Send and receive silicone, should register recorded, according to the order of use. Prone to scorch or stock performance unstable compound should be treated differently, not only to be stored separately, often overturned, so that timely dissemination of internal heat, but also to use as soon as possible. Easy to scorch the rubber flip once every 2-3 days, the general rubber flip once every 6-7 days. The returned plastic materials, particularly scrap, to be kept separate, not with the original film intermixing. On schedule, should be accurate, to reduce the backlog and shorten the cycle time.

Depending on the medium curing and curing method, heat curing can be divided into direct vulcanization, vulcanization and indirect gas mixing vulcanization three methods. ? direct vulcanization, the article directly into hot water or steam curing medium. ? indirect vulcanization products placed in hot air vulcanization, this method is generally used for demanding the appearance of certain products, such as shoes and so on. ? mixed sulfide gas, the first use of air vulcanization, and then switch to direct steam vulcanization. This method can overcome the shortcomings of both steam vulcanization affect product appearance to be overcome since the hot air heat slowly, and long cure time and easy aging drawbacks.

Excellent high-temperature silica gel: high temperature properties of silicone rubber elastomer can be said to be the best present. Silicone long-term use at 220 ?, 250 ? under short-term use; elongation silica gel can be maintained at about 100%, hardness of 90 to 95 degrees. After maintaining its aging in 350 ? hot air 16 hours of good elasticity, hot air aging at 400 ? after 110 minutes to maintain good flexibility, 400 ? hot air aging at 110 minutes after the spray containing carbon black, thermal black or carbon fiber rubber elongation increased by about 1/2 ~ 1/3, the intensity decreased about 1/2, still maintain good flexibility.

High summer temperatures, with particular attention to the management of silica gel. Common cool storage methods are: with a release agent, cooling water refrigeration cycle; the establishment of underground air-conditioned library or gum rubber compound library storage; water curtain can also glue library, the library walls with a plastic water pipe, water is sprayed onto the sacks to cool down. In short, the storage should pay attention to the following points:

(1) library ventilated rubber, silicone protected from direct sunlight, the indoor temperature should be lower, pay attention to summer cooling;

(2) should not be stacked too high silica, and regularly flip, in order to facilitate dissemination of internal heat;

Storage time (3) silica gel parked not too long after ripening.

Hydraulic kneading silicone O-ring in accordance with the requirements of the specimen thickness showings must be cooked into after showings, stored in a rubber warehouse, placed on a flat, clean, dry metal plate is cooled to room temperature (efficient management method is to Make rubber deposited on the trolley to move freely), and then at 23 +/- 2 ? condition, parking 22-24 hours, and to prevent moisture absorption. Silicone back when needed refining, refining shall return roller pitch, roll back requirements mild refining time will be.

When storing mix should be properly managed, it may have quality problems, such as mild scorch like. Silica during storage, the temperature must be controlled and shorten storage time, to avoid scorching. Send and receive silicone, should register recorded, according to the order of use. Prone to scorch or stock performance unstable compound should be treated differently, not only to be stored separately, often overturned, so that timely dissemination of internal heat, but also to use as soon as possible. Easy to scorch the rubber flip once every 2-3 days, the general rubber flip once every 6-7 days. The returned plastic materials, particularly scrap, to be kept separate, not with the original film intermixing. On schedule, should be accurate, to reduce the backlog and shorten the cycle time.

Depending on the medium curing and curing method, heat curing can be divided into direct vulcanization, vulcanization and indirect gas mixing vulcanization three methods. ? direct vulcanization, the article directly into hot water or steam curing medium. ? indirect vulcanization products placed in hot air vulcanization, this method is generally used for demanding the appearance of certain products, such as shoes and so on. ? mixed sulfide gas, the first use of air vulcanization, and then switch to direct steam vulcanization. This method can overcome the shortcomings of both steam vulcanization affect product appearance to be overcome since the hot air heat slowly, and long cure time and easy aging drawbacks.

Excellent high-temperature silica gel: high temperature properties of silicone rubber elastomer can be said to be the best present. Silicone long-term use at 220 ?, 250 ? under short-term use; elongation silica gel can be maintained at about 100%, hardness of 90 to 95 degrees. After maintaining its aging in 350 ? hot air 16 hours of good elasticity, hot air aging at 400 ? after 110 minutes to maintain good flexibility, 400 ? hot air aging at 110 minutes after the spray containing carbon black, thermal black or carbon fiber rubber elongation increased by about 1/2 ~ 1/3, the intensity decreased about 1/2, still maintain good flexibility.

High summer temperatures, with particular attention to the management of silica gel. Common cool storage methods are: with a release agent, cooling water refrigeration cycle; the establishment of underground air-conditioned library or gum rubber compound library storage; water curtain can also glue library, the library walls with a plastic water pipe, water is sprayed onto the sacks to cool down. In short, the storage should pay attention to the following points:

(1) library ventilated rubber, silicone protected from direct sunlight, the indoor temperature should be lower, pay attention to summer cooling;

(2) should not be stacked too high silica, and regularly flip, in order to facilitate dissemination of internal heat;

Storage time (3) silica gel parked not too long after ripening.