China Xiamen Juguangli Import & Export Co., Ltd Company News

advantage: Excellent high temperature resistance: Fluororubber can be used for a long time at temperatures up to 200 ° C to 250 ° C, and some special grades can even withstand higher temperatures. This makes it suitable for seals and O-rings that need to work in high-temperature environments. Excellent chemical resistance: Fluororubber has strong resistance to various chemicals such as fuels, oils, acids, and solvents. This makes it perform well in sealing applications in the automotive, aerospace, and chemical industries. Good aging resistance: Fluoroelastomer shows excellent anti-aging properties in long-term use, including anti-oxidation, ozone resistance and UV resistance. This ensures its long-term stability in harsh environments. Excellent oil and fuel resistance: Fluororubber maintains good sealing performance with minimal volume change when in contact with fuel, lubricants, and other hydrocarbon substances. This makes it an ideal material for automotive engines and fuel systems. Good physical performance: Fluororubber has high tensile strength, good elasticity, and wear resistance. These characteristics enable it to withstand mechanical stress and wear. Low breathability: Fluororubber has low breathability and can effectively prevent gas leakage. This makes it suitable for applications that require high sealing, such as pneumatic and hydraulic systems. Wide range of industrial applications: Fluororubber is widely used in the automotive, aerospace, chemical, medical, and electronics industries, especially in situations that require high-performance sealing. Disadvantages: high-cost: The production cost of fluororubber is relatively high, which makes its price more expensive than ordinary rubber materials such as natural rubber or nitrile rubber. This may be a limiting factor in some cost sensitive applications. High processing difficulty: The processing of fluororubber requires special equipment and technology because its vulcanization process is relatively complex. This increases the complexity and cost of the production process. Limited low-temperature performance: Fluororubber has poor performance in low-temperature environments and typically becomes brittle below -20 ° C to -30 ° C. This limits its application in extremely cold environments. Weak resistance to certain chemicals: Fluororubber has weaker resistance to certain polar chemicals such as ketones, esters, and certain amines. This may require the selection of other materials in certain specific chemical environments. Elasticity and wear resistance are not as good as some other rubbers: Compared with natural rubber or nitrile rubber, the elasticity and wear resistance of fluororubber may be slightly inferior. This may be a disadvantage in certain applications that require high elasticity and wear resistance. Limited food and medical applications: Some grades of fluororubber may not be suitable for food or medical applications unless specially processed and certified. This may be a limitation in situations where strict hygiene standards need to be met. Summary: Fluororubber is a high-performance material that is particularly suitable for applications that require high temperature, chemical resistance, and oil resistance. However, its high cost and processing difficulty may limit its use in certain situations. When selecting materials, it is necessary to weigh their advantages and disadvantages based on specific application requirements.

In order to improve the cold resistance of rubber materials, researchers have adopted various methods. These methods mainly include rubber copolymerization and chemical modification, rubber blending, addition of plasticizers, rational selection of vulcanization and filling systems, etc.   1. Rubber copolymerization and chemical modification Rubber copolymerization and chemical modification are effective methods to improve the cold resistance of rubber materials. By introducing monomers with large side groups for copolymerization, the regularity of rubber molecular chains can be disrupted, and their Tg and Tb can be reduced. For example, introducing monomers with flexible structures into fluororubber molecules can increase the flexibility of the molecular chain, reduce intermolecular forces, and thus improve the cold resistance of fluororubber. In addition, chemical modification methods such as epoxidation and isomerization can be used to alter the structure of rubber molecular chains and improve their cold resistance.   2.Rubber blending is a common method to adjust cold resistance in rubber formula design. By combining different types of rubber, their respective advantages can be comprehensively utilized to improve the cold resistance of rubber materials. For example, combining styrene butadiene rubber (SBR) with butadiene rubber (BR) can improve the cold resistance of the rubber. This is because SBR and BR have lower Tg and good molecular chain flexibility, and can still maintain a certain degree of elasticity at low temperatures.   3.Adding plasticizers is one of the effective measures to improve the cold resistance of rubber materials. Plasticizers can increase the flexibility of rubber molecular chains, reduce intermolecular forces, and make molecular segments easier to move. At low temperatures, plasticizers can act as lubricants, reducing friction and resistance between rubber molecular chains, thereby improving the cold resistance of rubber. Common plasticizers include petroleum based hydrocarbon solvent plasticizers and non solvent plasticizers.

What is the chemical stability of silicone products? Silicone products are widely used in medical, food, maternal and child care, electronics, industrial and other fields due to their safety, non toxicity, high temperature resistance, flexibility and durability. But many consumers still have doubts about its chemical stability - is silicone resistant to corrosion? Will it react with chemicals?   Chemical composition and properties of silicone gel Silicone rubber is a high molecular weight organic silicon compound, mainly composed of polysiloxane (- Si-O-Si -), and its unique molecular structure endows it with excellent chemical stability. Main features: High and low temperature resistance (-60 ℃~250 ℃) Resistant to aging and UV radiation Good flexibility and elasticity Non toxic and odorless, meeting food grade standards Strong chemical inertness, not easy to react with common substances   Chemical stability analysis of silicone products 1. Acid and alkali resistance Silicone has good tolerance to weak acids and bases, but strong acids and bases may have certain effects on it: Acid resistance: It can withstand dilute hydrochloric acid, dilute sulfuric acid, acetic acid, etc., but concentrated sulfuric acid and hydrofluoric acid can corrode silica gel. Alkali resistance: It can tolerate dilute solutions of sodium hydroxide (NaOH), but long-term contact with concentrated alkaline solution may cause silica gel to become brittle. 2. Solvent resistance Silicone is stable to common solvents such as water, alcohol, and vegetable oil, but some organic solvents may cause it to swell or degrade: Tolerance: water, ethanol, glycerol, edible oil Tolerance: Gasoline, xylene, carbon tetrachloride (long-term exposure may cause silica gel to expand or soften) 3. Oxidation resistance Silicone has good antioxidant capacity and is not easily destroyed by air or ozone, making it suitable for long-term outdoor use. 4. Salt spray resistance Silicone has strong resistance to seawater and salt spray, making it suitable for use in marine environments or high humidity areas.   How to determine the chemical stability of silicone products Refer to the certification standards: Food grade silicone: FDA, LFGB, SGS certified Medical grade silicone: ISO10993 biocompatibility testing Industrial grade silicone: acid alkali and oil resistance test report Experimental testing: Immersion test: Place the silicone sample in acid, alkali, or solvent to observe whether it deforms or dissolves. High temperature test: Heat to above 200 ℃ and check for odor or deformation. Observing physical properties: High quality silicone has good elasticity and is not easy to tear, while inferior silicone may become hard, brittle, or sticky. How to extend the service life of silicone products Avoid contact with strong acids, strong bases, and organic solvents such as concentrated sulfuric acid. Use neutral detergent when cleaning, do not use a hard brush to scrape. Store in a cool and dry place, avoid prolonged exposure to sunlight or high temperatures. Regularly check the aging condition, and replace it promptly if hardening or cracking is found.   In summary, silicone products have excellent acid and alkali resistance, solvent resistance, and oxidation resistance, and have performed outstandingly in fields such as food, medical, and industry. As long as used and maintained correctly, silicone products can maintain stable performance for a long time and are a safe and reliable choice!

Rebound rate, also known as rebound elasticity or impact elasticity, is an important performance indicator for measuring rubber elasticity. The ratio of the height of the rebound to the original height when using a pendulum to impact rubber at a certain height is called the rebound rate, expressed as a percentage (%). The larger the value, the higher the elasticity of the rubber.   Tear off permanent deformation, also known as permanent deformation, is an important indicator for measuring the elasticity of rubber. It is the ratio of the length increased by the deformed part of the rubber after it is stretched and pulled apart and parked for a certain period of time (usually 3 minutes) to the original length, expressed as a percentage (%). The smaller its diameter, the better the elasticity of the rubber. In addition, the elasticity of rubber can also be measured by compressive permanent deformation.   Tensile strength: also known as tensile strength. It refers to the force required per unit area for rubber to elongate to a certain length, that is, to elongate to 100%, 200%, 300%, 500%. Expressed in N/cm2. This is an important mechanical indicator for measuring the strength and toughness of rubber. The larger its value, the better the rubber's resilience, indicating that this type of rubber is less prone to elastic deformation.

How to control the hardness of silicone products? In the production process of silicone products, hardness control is a crucial link, which directly affects the performance and user experience of the product.   1. Hardness control method for silicone products Choose appropriate raw materials The different hardness of silicone raw materials directly affects the hardness of the final product. Normally, suppliers will provide silicone raw materials with different hardness, such as 30 degrees, 50 degrees, 70 degrees, etc. Producers can choose suitable hardness raw materials according to product requirements. Mixing silicone rubber material In actual production, it is often necessary to achieve the desired hardness value by blending different hardness rubber materials. By mixing high hardness and low hardness rubber materials, any hardness between the two can be formulated. Adjust hardness with silicone oil Silicone oil can be used to reduce the hardness of silicone gel. Adding an appropriate amount of silicone oil to silicone can effectively adjust the hardness of silicone products. However, it should be noted that excessive silicone oil may affect the physical properties and service life of silicone.   2. Adjustment formula for hardness of silicone products In practical operation, in order to accurately adjust the hardness of silicone products, the following two formulas can be used for calculation: Adjustment formula for high hardness of silicone rubber material If the measured hardness value is higher than the required hardness value, the weight of low hardness rubber material to be added can be calculated according to the following formula: [Weight of low hardness rubber material to be added in ext}=rac {(measured hardness value) - ext {required hardness value})} {(ext {required hardness value} - ext {low hardness value})} times the weight of ext {rubber material}] Adjustment formula for low hardness of silicone rubber material If the measured hardness value is lower than the required hardness value, the weight of the required high hardness rubber material can be calculated according to the following formula: [Weight of required high hardness adhesive for ext=rac {(ext {required hardness value} - ext {measured hardness value})} {ext {high hardness value} - ext {measured hardness value})} times the weight of ext {adhesive}] Through these two formulas, producers can adjust the hardness of silicone products according to actual needs to ensure that the products meet specific performance requirements.   The hardness control of silicone products is a precise technical process, through the reasonable selection of raw materials, the allocation of rubber materials and the use of adjustment formulas, can effectively control the hardness of silicone products to meet the needs of different application scenarios. Mastering these technologies is of great significance for improving product quality and production efficiency.    

Ensuring the processing accuracy of acrylic cover panels is an important step in producing high-quality products. Here are some key steps and strategies to help you achieve high precision during the machining process: 1. Use high-precision machining equipment CNC machining center: using computer numerical control (CNC) machining equipment to ensure high precision in cutting, engraving, and forming. CNC equipment can accurately control tool paths and speeds, reducing human errors. Laser cutting machine: For precision machining, laser cutting machines can provide extremely high precision and consistency, especially suitable for processing complex shapes and patterns. 2. Choose high-quality raw materials High quality acrylic sheet: Ensure that the acrylic sheet used has uniform thickness and high-quality surface to reduce errors during processing. Supplier certification: Select a reputable supplier and request quality inspection reports for raw materials. 3. Optimize processing parameters Cutting speed and feed rate: Adjust the cutting speed and tool feed rate according to the thickness and hardness of the material to avoid material deformation or damage. Tool selection: Use specialized tools suitable for acrylic processing to ensure sharpness and durability. Cooling system: Use a cooling system (such as water or air cooling) during the processing to reduce thermal deformation. 4. Strict quality control First article inspection: Before mass production, a detailed inspection of the first product is conducted to ensure that it meets the design requirements. Sampling inspection: Regularly sampling and inspecting products in production to ensure continuous compliance with accuracy standards. Full inspection: For products that require high precision, a 100% full inspection is conducted to ensure that each product meets quality requirements. 5. Accurate fixtures and fixing devices Customized fixtures: Design and use customized fixtures to ensure that acrylic sheets remain stable during processing, avoiding displacement or vibration. Vacuum adsorption: For thin plates or complex shapes, use a vacuum adsorption device to fix the material. 6. Environmental control Temperature and humidity control: Acrylic materials are sensitive to temperature and humidity, ensuring stable temperature and humidity in the processing environment to reduce material deformation. Clean environment: Keep the processing environment clean to avoid dust and particulate matter affecting processing accuracy. 7. Professional operators Training and experience: Ensure that operators have received professional training and possess rich processing experience. Standardized operating procedures: Develop detailed processing operation procedures and strictly implement them. 8. Advanced testing equipment Optical detection equipment: Use optical detection equipment (such as laser scanners, optical microscopes) for high-precision detection. Dimensional inspection tools: Use high-precision measuring tools such as micrometers and vernier calipers for dimensional inspection. 9. 3D modeling and simulation 3D modeling: Use 3D modeling software to simulate the machining process before processing to ensure the feasibility of the design. Virtual validation: Optimize machining parameters and process flow through virtual validation. 10. Continuous improvement Feedback mechanism: Establish a production feedback mechanism to promptly identify and resolve issues during processing. Process optimization: Regularly evaluate and optimize processing techniques, introduce new technologies and equipment to improve accuracy. summarize By using high-precision equipment, optimizing processing parameters, strict quality control, professional operators, and advanced testing tools, the processing accuracy of acrylic cover panels can be effectively ensured. Meanwhile, continuous improvement and innovation are key to maintaining high-precision machining. Whether your needs are simple or complex, we can provide reliable solutions to ensure that your products meet the expected accuracy and quality standards.

Do silicone parts have any requirements for raw materials? In modern industrial manufacturing, silicone parts are widely used in various fields due to their unique physical and chemical properties. However, the performance and quality of silicone parts largely depend on the selection of their raw materials. So, do silicone parts have any requirements for raw materials?   The primary requirement for raw materials in silicone parts is material purity. High purity silicone raw materials can ensure stable chemical properties of parts during the manufacturing process, reducing the impact of impurities on part performance. For example, in the medical field, silicone parts need to have high biocompatibility and chemical stability, which requires that the raw materials must not contain impurities that are harmful to the human body. Therefore, when selecting silicone raw materials, it is necessary to ensure that their purity meets relevant standards to meet the specific application requirements.   In addition to purity requirements, the hardness of silicone parts is also a key factor in the selection of raw materials. The hardness of silicone directly affects the support and flexibility of the parts. If the hardness is too high, the parts may be too rigid to adapt to complex shapes and stress changes; If the hardness is too low, the parts may be too soft and prone to deformation or damage. Therefore, when selecting silicone raw materials, it is necessary to choose silicone materials with appropriate hardness according to the specific purpose and working environment of the parts.   Temperature resistance is another important requirement of silicone parts for raw materials. Silicone parts need to maintain stable performance in different temperature environments, including resistance to brittleness at low temperatures and heat resistance at high temperatures. This requires raw materials to have excellent temperature resistance and be able to maintain stable chemical and physical properties under extreme temperature conditions. For example, in the automotive industry, silicone parts need to be able to withstand the high temperature environment inside the engine compartment, which requires raw materials to have excellent heat resistance.   Dimensional accuracy and shape integrity are also important requirements for silicone parts in terms of raw materials. Silicone parts usually need to be customized according to specific sizes and shapes, which requires raw materials to have high plasticity and processing performance. During the manufacturing process, raw materials need to undergo precise mold forming and processing to ensure the dimensional accuracy and shape integrity of the parts. If the plasticity and processing performance of raw materials are poor, it may lead to inaccurate dimensions or incomplete shapes of parts, thereby affecting their usability.   In addition, silicone parts also have certain requirements for the physical properties of raw materials. For example, elastic recovery ability and wear resistance are important properties that silicone parts need to possess during use. Silicone parts with strong elastic recovery ability can quickly recover to their original state after being subjected to external forces, maintaining stable shape and performance. Silicone parts with good wear resistance can reduce wear and damage during long-term use, extending their service life. These performance requirements need to be considered when selecting raw materials.   Chemical properties are another key requirement for raw materials in silicone parts. Silicone parts need to be able to maintain stable performance in the face of various chemical substances, including corrosive substances such as acids, alkalis, and salts. This requires raw materials to have excellent chemical corrosion resistance and maintain stable chemical properties when in contact with these chemicals. At the same time, raw materials also need to have good chemical stability to avoid performance degradation caused by chemical reactions during use.   Silicone parts have strict requirements for raw materials. These requirements cover multiple aspects such as purity, hardness, temperature resistance, dimensional accuracy, shape integrity, physical properties, and chemical properties.

The hot pressing process of silicone products has become an indispensable material in many fields in modern industrial production due to its excellent temperature resistance, corrosion resistance, and good physical properties. As a key technology in the production of silicone products, the precise process control of hot pressing technology is crucial for product quality.   1. Introduction to Hot Pressing Forming Process Hot pressing is a commonly used process in the production of silicone products, which mainly utilizes high temperature and pressure to transform solid silicone raw materials into the desired shape. The process flow is complex and requires precise control of parameters such as temperature, pressure, and time to ensure the quality and performance of the product.   2. Hot pressing process flow Raw material preparation: Select suitable silicone raw materials, usually in the form of milky white blocks. According to product requirements, add vulcanizing agents (ripening agents) and other additives such as colorants, luminescent powders, fluorescent powders, etc. Rubber mixing: Put the prepared raw materials and additives into the rubber mixing machine for mixing, usually for about 30 minutes. This step ensures the uniform mixing of raw materials and additives. Cutting: Cut the blended silicone raw materials into the required size for subsequent hot pressing molding. Awakening material: Place the cut silicone raw material on the awakening material rack and let it sit for a period of time, usually about 8 hours. This step helps bubbles in the raw materials escape, ensuring the compactness of the finished product. Hot pressing molding: Put the awakened silicone raw material into the mold of the hot press vulcanizing machine. Heat the mold to the set temperature, usually between 130 °C and 160 °C. Apply pressure to fill the mold cavity with silicone material. Maintain a certain holding time to allow the silicone to fully cure and form. Sulfurization: During hot pressing, the silicone raw material undergoes a vulcanization reaction to form a stable rubbery substance. Inspection: The molded silicone products need to undergo strict quality inspection, including inspection of appearance, size, performance, and other aspects. Edge removal: Take qualified products out of the mold and remove excess burrs and materials. Post processing: Based on product requirements, perform subsequent processing such as surface spraying, printing, engraving, etc. Final inspection: Conduct final inspection on all processed products to ensure that each product meets quality standards. Packaging: Packaging qualified products and preparing them for shipment.   In summary, through in-depth analysis of the hot pressing process of silicone products, we not only appreciate the complexity and precision of this technology, but also recognize its important role in promoting industry progress. With the continuous development of technology and changes in market demand, the hot pressing molding process will continue to be optimized and upgraded, bringing broader application prospects to the silicone products industry.

Is the material of silicone products soft or hard better? With the increasing popularity of silicone products today, consumers often encounter a key question when choosing: is the material of silicone products soft or hard better? This question troubles many people, as different levels of softness and hardness may bring vastly different user experiences and application effects.   1. Classification of softness and hardness of silicone products The softness and hardness of silicone products are usually measured by their hardness value, and the higher the hardness value, the harder the silicone; On the contrary, the softer it is. According to different hardness values, silicone products can be roughly divided into the following categories: Ultra soft silicone: With extremely low hardness and a soft and comfortable touch, it is commonly used in fields such as baby products and medical equipment that require extremely high softness. Soft silicone: Moderate hardness, with certain elasticity and softness, widely used in daily necessities, home accessories and other fields. Hard silicone: With high hardness, strong structural stability and load-bearing capacity, it is commonly used in industrial products, automotive parts,etc.   2. Advantages of Soft Silicone Products High comfort: Soft silicone products have a soft touch and do not cause pressure on the skin, making them suitable for long-term contact and use. Good elasticity: Soft silicone has good resilience, is not easily deformed, and can maintain shape stability under long-term use. High safety: Soft silicone is usually made of environmentally friendly and non-toxic materials, which are harmless to the human body and suitable for use in contact with food or medical fields.   3. Advantages of hard silicone products Structural stability: Hard silicone products have high hardness and strength, and can withstand significant pressure and tension, making them suitable for applications that require a certain amount of weight. Strong wear resistance: Hard silicone products have high surface hardness, are not easily scratched or worn, and have a long service life. Low processing cost: Compared to soft silicone, hard silicone is easier to form and demold during the processing, which helps to reduce production costs.   4. How to choose the appropriate silicone product for softness and hardness When choosing the softness and hardness of silicone products, the following factors should be considered comprehensively: Usage scenario: Determine the appropriate softness and hardness based on the usage environment and requirements of silicone products. For example, when used for baby products, ultra soft silicone should be selected to ensure comfort and safety; When used for industrial products, it may be necessary to choose hard silicone to ensure structural stability and load-bearing capacity. User experience: Consider the user's needs for the tactile sensation and user experience of silicone products. Soft silicone products are usually more popular among users who pursue comfort and softness; Hard silicone products are more suitable for users who pursue durability and structural stability. Cost effectiveness: Consider the processing and production costs of silicone products while ensuring quality. Choose the appropriate hardness and softness according to actual needs to maximize cost-effectiveness.

Silicone buttons can easily absorb dust without spraying, so after the molding process, we will spray a thin layer of ink on the surface of the silicone button, which can prevent dust and has a good hand feel. After spraying, it can enhance the feel and appearance of the product, making it feel smoother and look more three-dimensional. There are usually three spraying methods, each of which is different. We can choose the corresponding spraying method based on the customer's demand for the product effect.   Spray oil: Spray paint is a visible layer of ink sprayed onto the surface of silicone buttons, and the color can be adjusted according to the customer's needs for the product. Spray extinction: Matte ink is a type of matte feel ink with characteristics similar to PU ink. Spraying matte ink will make the surface of silicone buttons appear matte, and it can also spray a frosted effect, making the feel smoother! Spray PU: PU refers to a type of ink that has strong adhesion, wear resistance, good transparency, and other characteristics. Silicone buttons sprayed with PU also have a very good hand feel and wear resistance, making it a commonly used spraying method for silicone buttons.   The above three types are commonly known as "spray silicone buttons", which are commonly referred to as spray painting or spray painting.