Do you often buy rubber joints, really understand the rubber joints? How is it made? Its an important process determines its quality, vulcanization, do you understand? Flexible rubber joints, also known as rubber flexible joints, soft joints, shock absorbers, pipe shock absorbers, shock absorbers, etc., are highly flexible, high-tightness, media-resistant and weather-resistant pipe joints. Shanghai flexible rubber joints have strong vibration absorption ability, good vibration damping and noise reduction effect, can withstand high working pressure, have large anti-knocking force, and have sufficient elasticity. They also provide displacement compensation for better compression, tension, and torsional deformation of pipelines. effect. There are a large variety of flexible rubber joints on the market. Users must first look for well-known manufacturers of flexible rubber joints during the purchase of flexible rubber joints, so that product quality will be more assured. Gongyi Credit Water Supply Co., Ltd. is a large flexible rubber joint manufacturer. It has been established for more than 20 years. Talk to everyone today about the importance of the vulcanization process for flexible rubber joints.
Flexible rubber joints require vulcanization during production. Vulcanization is an important link in the production of flexible rubber joints. The quality of the vulcanization process directly affects the quality of flexible rubber joints. Vulcanization conditions include accelerators, temperatures, reactants and pressure. When the flexible rubber joint is put into the vulcanizing tank and catalyzed by the accelerator, the rubber reacts chemically and is formed in the vulcanizing mold, and the flexible rubber joint formed according to the different reaction of the rubber type will have different The characteristics. Vulcanization is also a major process of forming flexible rubber joints. The flexible rubber joint is a layered rubber sheet before vulcanization. After vulcanization, the rubber joint ball part becomes an integral part. Its performance has been greatly improved.
The vulcanization process can be divided into four stages, each of which features:
Through the measurement of the rubber strength (or vulcanization instrument), it can be seen that the entire vulcanization process can be divided into four stages of vulcanization induction, pre-sulfur, positive vulcanization and super-sulfur (for natural rubber, vulcanization).
In the vulcanization induction period (scouling time), cross-linking has not yet started and the rubber has good fluidity. This stage determines the scorch and processing safety of the rubber compound. At the end of this phase, the rubber began to crosslink and lose its fluidity. The length of the induction period of vulcanization is related to the nature of the raw rubber, which mainly depends on the additives used. For example, the long-term scorch time can be obtained with the delay accelerator, and the processing safety is high.
After the induction period of vulcanization, it is a presulfiding stage that is crosslinked at a certain speed. The degree of cross-linking during the pre-vulcanization period is low, and even if the tensile strength of the vulcanizate is late, the elasticity cannot reach the expected level, but the performance of tearing and dynamic tearing is better than that of the corresponding vulcanization.
After reaching the vulcanization stage, the physical properties of the vulcanizate reach or close to the optimum point respectively, or reach the full balance of performance.
After the vulcanization stage (vulcanized flat area), it is the over-sulfur stage. There are two cases: natural rubber appears "back to the original" phenomenon (decreased tensile strength), most synthetic rubber (except butyl rubber) tensile strength Continue growing.
For any rubber, not only cross-linking occurs during vulcanization, but also due to heat and other factors, breakage of the production chain and the molecular chain occurs. This phenomenon runs through the entire curing process. In the oversulfur stage, if the cross-linking still dominates, the rubber will harden and the tensile strength will continue to rise. Conversely, if the rubber is soft, it will return to the original.
Gongyi integrity water supply equipment has been established so far, always adhere to: "science and technology as a precursor, depending on the quality of life, the user as God" business philosophy, adhere to the principle of excellence in product quality, professional R & D and production of various products and equipment. Our company adhering to the "innovation, excellence, unity, dedication," the spirit of enterprise, casting a batch after another batch of excellent quality, excellent performance of the famous products, new and old customers have won critical acclaim.
Flexible rubber joints require vulcanization during production. Vulcanization is an important link in the production of flexible rubber joints. The quality of the vulcanization process directly affects the quality of flexible rubber joints. Vulcanization conditions include accelerators, temperatures, reactants and pressure. When the flexible rubber joint is put into the vulcanizing tank and catalyzed by the accelerator, the rubber reacts chemically and is formed in the vulcanizing mold, and the flexible rubber joint formed according to the different reaction of the rubber type will have different The characteristics. Vulcanization is also a major process of forming flexible rubber joints. The flexible rubber joint is a layered rubber sheet before vulcanization. After vulcanization, the rubber joint ball part becomes an integral part. Its performance has been greatly improved.
The vulcanization process can be divided into four stages, each of which features:
Through the measurement of the rubber strength (or vulcanization instrument), it can be seen that the entire vulcanization process can be divided into four stages of vulcanization induction, pre-sulfur, positive vulcanization and super-sulfur (for natural rubber, vulcanization).
In the vulcanization induction period (scouling time), cross-linking has not yet started and the rubber has good fluidity. This stage determines the scorch and processing safety of the rubber compound. At the end of this phase, the rubber began to crosslink and lose its fluidity. The length of the induction period of vulcanization is related to the nature of the raw rubber, which mainly depends on the additives used. For example, the long-term scorch time can be obtained with the delay accelerator, and the processing safety is high.
After the induction period of vulcanization, it is a presulfiding stage that is crosslinked at a certain speed. The degree of cross-linking during the pre-vulcanization period is low, and even if the tensile strength of the vulcanizate is late, the elasticity cannot reach the expected level, but the performance of tearing and dynamic tearing is better than that of the corresponding vulcanization.
After reaching the vulcanization stage, the physical properties of the vulcanizate reach or close to the optimum point respectively, or reach the full balance of performance.
After the vulcanization stage (vulcanized flat area), it is the over-sulfur stage. There are two cases: natural rubber appears "back to the original" phenomenon (decreased tensile strength), most synthetic rubber (except butyl rubber) tensile strength Continue growing.
For any rubber, not only cross-linking occurs during vulcanization, but also due to heat and other factors, breakage of the production chain and the molecular chain occurs. This phenomenon runs through the entire curing process. In the oversulfur stage, if the cross-linking still dominates, the rubber will harden and the tensile strength will continue to rise. Conversely, if the rubber is soft, it will return to the original.
Gongyi integrity water supply equipment has been established so far, always adhere to: "science and technology as a precursor, depending on the quality of life, the user as God" business philosophy, adhere to the principle of excellence in product quality, professional R & D and production of various products and equipment. Our company adhering to the "innovation, excellence, unity, dedication," the spirit of enterprise, casting a batch after another batch of excellent quality, excellent performance of the famous products, new and old customers have won critical acclaim.
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