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

What to do if the silicone product is not good for release: In the production process of silicone products, the release of silicone products is the most important step, no matter who more or less will encounter the problem of difficult release, such as the problem of difficult release is very serious, which will seriously affect the production efficiency of silicone products, then how to solve the problem of difficult release?   1. Mold surface treatment The molding mold of silicone products should be cleaned before the oil pressure molding machine, especially the new mold that has just been unloaded must be sandblasted first. Choose different detergents for mold. The sandblasted mold must be heated to a sufficient temperature before placing the mold, and the release agent must be sprayed well before forming. It is worth noting that the electroplating mold cannot be sandblasted, including resin sand.   2. Spray treatment In the molding process of silicone products, silicone products do not stick to which side of the mold, nor do they stick to which mold spray, but sometimes it is difficult to stick. Solution: Spray bottle or other clean water, if you want the product to stick, after spraying, the product will stick where you want it to stick.   3, mold temperature adjustment The product likes to stick to the lower half of the mold temperature. When the upper mold temperature is 175℃ and the lower mold temperature is 165℃, the product is usually stuck to the lower mold when the mold is lifted. In short, when the silicone product is difficult to release, do not replace the release agent with a better release agent, in order to facilitate drawing, or increase the use of release agent and frequency of use, too much release agent is easy to cause dirt on the surface of the mold, light will have a certain impact on the appearance of the product, the use of too much release agent will also affect the later screen printing, injection oil adhesion ability. If the above method is not very good, you can consider adding an appropriate amount of internal release agent when preparing the material, but it will increase the additional cost of the product.   How to release silicone products quickly Silicone manufacturers know that the more modules they can do in a day, the less the corresponding cost. The lower the unit price of silicone sleeve, the more obvious the price advantage. Silicone products factory Begit silicone products, as well as the secrets revealed by customers, silicone sleeves in order to improve the release speed, there are these methods. 1. After refining raw materials, adding release agent and rapid curing agent, the fluidity of silicone casing is stronger, and the original 200-second silicone casing can shorten the molding time by 30% under the same temperature and pressure. 2. The silicone products factory adjusts the temperature and pressure of the machine, usually the higher the temperature, the faster the formation time of the silicone sleeve, but too high the temperature will also produce the situation of explosive edge. 3. Reduce the number of exhaust of the machine, exhaust die up and down, mold speed is slow. If the silicone jacket is not particularly complex, the exhaust can be reduced twice. 4. The silicone products factory should work hard on the mold, open several more discharge cans, and let the rest of the materials come out. If the number of silicone sleeve is large, you can choose to open several more holes on the large mold to increase the output of each mold.

Silica gel products are mostly made of silicone rubber, forming process is also mostly hydraulic molding, the lower the hardness is not only conducive to the product of the swing material, but also because of its semi-fluid internal structure in the process of high temperature vulcanization bubbles, so we choose this kind of product silica gel material requirements are very high, but also must use the best vulcanizing agent, The solution is to increase the power of the vacuum machine and improve the mold structure.   The toughness and elasticity of silicone products are very good, not easy to deformation due to external forces, and there will be a layer of greasy substances on the surface layer, so it will feel smooth to the touch. It is mainly used in construction machinery, automobiles, electronic products, household appliances, toys, medical treatment, sports equipment ………… And other industries, with shock absorption, sealing, anti-static, high and low temperature resistance, wear resistance, flame retardant, acid and alkali corrosion resistance.   The adsorption of silica gel is mainly physical adsorption, which can be regenerated and used repeatedly. Add acid to the alkali metal silicate (such as sodium silicate) solution to acidify it, and then add a certain amount of electrolyte to stir, that is, to generate silica gel.   Or adding acid or ammonium salt to a concentrated sodium silicate solution can also produce silicic acid gel. Silica gel is left for a few hours to age, then washed with hot water to remove soluble salts, dried at 60 ~ 70 ° C and activated at about 300 ° C to obtain silica gel.   Under normal circumstances, the hardness of silicone products is 30-80°, which is also an ordinary silicone hardness, suitable for most of the production of silicone products. Let's take the silicone tube as an example: silicone tube, also known as silicone hose. Used as liquid, gas and other material flow and coating carrier. Hardness: 70±5, tensile strength: ≥6.5

1. Brief introduction of hot pressing process Hot pressing is a common process in the production of silica gel products, which mainly uses high temperature and pressure to convert solid silica gel raw materials into the desired shape. The process is complex and requires precise control of parameters such as temperature, pressure and time to ensure product quality and performance.   2. Hot pressing process   Raw material preparation: Select the appropriate silica gel raw material, usually milky white block. According to product requirements, add curing agent (ripening agent) and other additives, such as master color, luminous powder, phosphor, etc.   Rubber mixing: Put the prepared raw materials and additives into the rubber mixing machine, usually the rubber mixing time is about 30 minutes. This step ensures an even mixture of raw materials and additives.   Cutting material: The mixed silica gel raw material is cut to the required size to facilitate subsequent hot pressing.   Wake up: Put the cut silica gel raw material on the wake up rack for a period of time, usually about 8 hours. This step helps the air bubbles in the raw material escape and ensures the compactness of the finished product.   Hot press forming:   Put the awakened silica gel raw material into the mold of the hot press vulcanizer.   Heat the mold to a set temperature, usually between 130°C and 160°C.   Pressure is applied to fill the mold cavity with silica gel.   Maintain a certain pressure holding time, so that the silica gel is fully vulcanized.   Vulcanization: At the same time of hot pressing, the silica gel raw material will be vulcanized to form a stable rubber-like substance.   Inspection: The silicone products after molding need to carry out strict quality inspection, including inspection of appearance, size, performance and so on.   Edge removal: the qualified product is removed from the mold, and the excess raw edge and residual material are removed.   Post-treatment: According to product requirements, surface oil injection, printing, engraving and other subsequent processing.   Final inspection: The final inspection of all post-processed products is carried out to ensure that each product meets the quality standards.   Packaging: The qualified products are packaged and ready for shipment.

How many degrees of high temperature can silicone products withstand, silicone products with its excellent high temperature resistance and widely used in various industries. We will discuss the high temperature resistance of silicone products to help you understand the performance of this material in high temperature environments.   1. High temperature resistance of silicone products Silica gel, as a polymer material, has excellent high temperature resistance. It can maintain stability in high temperature environment and is not easy to age, so it has been widely used in aerospace, automobile manufacturing, electronic appliances and other fields.   2. High temperature resistance of silicone products Under normal circumstances, the highest temperature that silicone products can withstand is about 200°C to 250°C. However, the specific degree of temperature resistance will vary depending on the formula, production process and use of silica gel. Solid silica gel: high temperature resistance is good, usually can withstand 200°C to 250°C high temperature. Liquid silicone: high temperature resistance is relatively weak, usually can withstand 150°C to 200°C high temperature.   3. Factors affecting the high temperature resistance of silicone products Material formula: Different formulations of silica gel, its high temperature resistance will be different. Production process: vulcanization, molding and other processes will affect the high temperature resistance of silica gel. Use environment: in a high temperature environment for a long time, the high temperature resistance of silicone products may be affected.   4. How to improve the high temperature resistance of silicone products Choose the right high temperature silica gel raw materials: Choose the silica gel raw materials with good high temperature resistance. Optimize the production process: the use of advanced vulcanization, molding process to improve the high temperature resistance of silicone products. Add high temperature resistance additives: Add high temperature resistance additives to the silica gel formula to improve its high temperature resistance.   The high temperature resistance of silica gel products makes it widely used in various high temperature environments. Understanding the high temperature resistance of silicone products helps us to better choose and use this material. Through the introduction of this article, I believe that you have a more in-depth understanding of the high temperature resistance of silicone products.

In the rubber refining process to add the appropriate curing agent, if the amount of curing agent is not properly controlled, it will lead to burning or fire, so the rubber refining process still needs to increase the technical content. The color glue is repeatedly rolled with the raw material to become the synthetic color required by the product during the entire operation. Rubber mixing is a strong technical work, the average person will not do a good job, it is because of the work can not be done, according to the hardness of different products, use and tension to choose different raw materials.   First, let's talk about whether silicone breaks down toxins at high temperatures. Silicone rubber is an environmentally friendly material resistant to high temperature and high pressure. The substance does not undergo any chemical reaction in the temperature range between -60 ° C and 240 ° C. In addition, it is a harmless health material, its chemical composition is relatively stable, at 200 degrees of high temperature will not release toxic substances. Usually we wear silicone accessories, it is impossible to be in such an environment, so that toxic substances will not be released at high temperatures, and can be used at normal temperature. Mold process customization processing accounts for the majority, such products are mainly single structure, product monochrome can produce different concave and convex shape and LOGO, the best place is its high production efficiency, low cost. The main way to improve its appearance is to sun-print and post-processing printing. Silicone monochrome liners now account for the majority, because different creative structures can also add a bit of charm to the product.   Custom processing has become the main way of many silicone accessories, and the use of silicone materials as auxiliary materials is mainly the need for customization and mold opening, although many accessories are different from the existing mold, customized accessories can be diversified processing. This product can achieve no imitation and functional effect, compared with other materials, silicone raw materials can replace a variety of raw materials, to achieve safety, non-toxic, environmental protection effects, for the product tensile, tear resistance, high temperature resistance has excellent reaction function.

What are the environmental performance of silicone products? In today's society, with the continuous improvement of environmental awareness, people are paying more and more attention to the environmental performance of products. Silicone products, as a new type of polymer material, have attracted much attention because of their unique environmental protection characteristics. Silicone products not only have excellent physical and chemical properties, but also excellent performance in environmental protection, becoming the preferred material in many fields.   The primary reason why silicone products are favored is that they are non-toxic and harmless. Silica gel is a highly active adsorption material, chemically stable, insoluble in water and any solvent, non-toxic and tasteless. In the process of production and use, silicone products will not release harmful substances and are harmless to the human body and the environment. This feature makes silicone products widely used in food, medical, infant products and other fields. For example, silicone tableware, silicone pacifiers and other products are not only safe and reliable, but also can simulate the touch of breast milk, giving the baby the most gentle care.   In addition to being non-toxic and harmless, silicone products also have excellent biodegradability. In the natural environment, silicone products can gradually degrade through the action of microorganisms and ultimately transform into harmless substances. This biodegradability not only reduces the environmental pollution caused by landfill and incineration, but also helps to achieve resource recycling. Compared to traditional packaging materials such as plastic and metal, silicone products have significant advantages in environmental protection.   In addition, silicone products also have lower energy consumption and emissions during the production process. The production process of silicone materials is relatively simple and does not require complex processes such as high temperature and high pressure, resulting in lower energy consumption. At the same time, silicone products do not produce harmful substance emissions during the production process, and have a relatively small impact on the environment. This feature makes silicone products have broad application prospects in green manufacturing and sustainable development.   Silicone products also have good durability and reusability. Silicone materials have excellent elasticity, wear resistance, and aging resistance, making silicone products less likely to be damaged during use and having a longer service life. In addition, silicone products can be cleaned and disinfected for easy reuse. This durability and reusability not only reduce resource waste, but also help lower production costs and environmental pollution.   It is worth mentioning that silicone products also have certain advantages in recycling and processing. Due to the high thermal and chemical stability of silicone materials, they can be recycled and processed through methods such as pyrolysis and incineration. During the recycling process, silicone materials can be converted into valuable resources such as silicone oil, silicone rubber, etc., achieving the reuse of resources. This feature makes silicone products have broad application prospects in the field of circular economy.   The environmental performance of silicone products is also reflected in their wide range of application fields. Due to their non-toxic, biodegradable, and durable properties, silicone products are widely used in various fields such as electronics, home appliances, machinery, instruments, automobiles, sports equipment, kitchens and bathrooms, medical care, toys, and more. In these fields, silicone products not only exhibit their unique physical and chemical properties, but also make positive contributions to achieving green production and sustainable development.   For example, in the electronics industry, silicone products are used to make seals and shock pads for electronic products such as smartphones and tablets. These silicone products not only have good sealing and shock resistance, but also effectively prevent damage and malfunction of electronic products during use. At the same time, the biodegradability and environmental performance of silicone products also meet the environmental requirements of electronic products, which helps promote the green development of the electronics industry.   In the medical industry, silicone products are also widely used. Silicone materials are used in the production of medical devices and implants due to their excellent biocompatibility and corrosion resistance. These silicone products are not only safe and reliable, but also effectively reduce the risk of infection during medical processes. At the same time, the recyclability and environmental performance of silicone products also meet the environmental requirements of the medical industry, which helps promote the sustainable development of the medical industry.   Silicone products have many advantages in environmental protection, including non toxicity, biodegradability, low energy consumption and emissions, durability and reusability, as well as a wide range of application fields.

Silicone parts have no requirements for raw materials, in modern industrial manufacturing, silicone parts are widely used in various fields because of their unique physical and chemical properties. However, the performance and quality of silicone parts largely depend on the selection of their raw materials.   The primary requirement of silicone parts for raw materials is material purity. High purity silica gel raw materials can ensure that the parts have stable chemical properties during the manufacturing process, reducing the impact of impurities on the performance of the parts. For example, in the medical field, silicone parts need to have a high degree of biocompatibility and chemical stability, which requires that the raw material cannot contain impurities that are harmful to the human body. Therefore, when selecting silica gel raw materials, it is necessary to ensure that its purity meets the relevant standards to meet the needs of specific applications.   In addition to purity requirements, the hardness of silicone parts is also a key factor in the selection of raw materials. The hardness of silica gel directly affects the support and flexibility of parts. If the hardness is too high, the part may be too stiff to adapt to complex shape and stress changes; If the hardness is too low, the part may be too soft and easy to deform or damage. Therefore, when choosing silicone raw materials, it is necessary to select silicone materials with appropriate hardness according to the specific use 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 brittleness resistance at low temperatures and heat resistance at high temperatures. This requires that raw materials have excellent temperature resistance and can 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 in the engine compartment, which requires the raw material to have excellent heat resistance.   Dimensional accuracy and shape integrity are also important requirements for raw materials for silicone parts. Silicone parts often need to be customized according to specific sizes and shapes, which requires a high degree of plasticity and processability of the raw material. In the manufacturing process, raw materials need to be precisely moulded and processed to ensure the dimensional accuracy and shape integrity of the parts. If the plasticity and processing properties of raw materials are not good, it may lead to inaccurate parts size or incomplete shapes, which affects their use effect.   In addition, silicone parts also have certain requirements for the physical properties of raw materials. For example, elastic resilience and wear resistance are important properties that silicone parts need to have during use. The silicone parts with strong elastic recovery ability can recover quickly after being subjected to external force and maintain stable shape and performance. Silicone parts with good wear resistance can reduce wear and damage during long-term use and extend service life. These performance requirements need to be considered in the selection of raw materials.   Chemical properties are another key requirement of silicone parts for raw materials. Silicone parts need to be able to maintain stable performance in the face of various chemicals, including acid, alkali, salt and other corrosive substances. This requires that raw materials have excellent chemical resistance and can maintain stable chemical properties when exposed to these chemicals. At the same time, raw materials also need to have good chemical stability to avoid chemical reactions during use that lead to performance degradation.

Silicone sleeve because of soft texture, comfortable feel, strong protection, long use cycle and other characteristics of our favorite, but the most sad will be yellow after a long time. The newly bought silicone set became earthy after a while, I thought I bought a retro silicone set, the pure and transparent you became like this, what do I have to take to save you? How to do if the silicone sleeve turns yellow?   1. Rinse with water This is the common method. If there is grease on the silicone sleeve, it is recommended to apply some soapy water, then wipe the stain with a soft cloth, and then rinse with water. Finally, use a paper towel or a soft cloth to dry the silicone sleeve and put it in a cool, ventilated place to dry.   2. Use an eraser The eraser is very useful, in addition to wiping pens, it also has a great cleaning effect on other objects. In the silicone sleeve can also be used oh, especially for the fuselage with matte treatment effect of the model, just use a simple rubber to wipe, it is easy to clean out the stolen goods oh.   3. Alcohol wipe method As we all know, alcohol decontamination ability is very strong and volatile characteristics, in a very short time after wiping to restore to the dry state, it is not like water easy to penetrate into the machine is likely to cause short circuit of the power supply, etc., directly with paper towels to wipe it, but also play a disinfection role.   4. Clean with toothpaste Toothpaste is a good cleaning tool, apply toothpaste on the surface of the silicone sleeve, by repeatedly wiping with a mirror cloth, and finally rinse with water.

In the processing of silicone products, screen printing is an important process, because it can achieve character engraving in silicone products, this function is very important for silicone buttons and other products, good screen printing level can improve the quality of characters, but in the process of silicone products screen printing, sometimes the characters out of screen printing will fall out. So what is the cause of silicone products after screen printing characters will fall out?   The character wear resistance of silk-screen silicone products is poor Form of expression: the characters of silicone products printed by silk screen after several uses, the characters begin to blur Cause:   1. After the screen printing baking time is short or low temperature, pay attention to: the standard value of baking temperature and time difference is too far, and the temperature is too low   2. The quality of screen printing ink is too poor, pay attention to: the surface of silicone products will also affect The characters are wiped away after the screen printing Cause:   1. The surface of silicone products is too dirty, preventing the adsorption of screen printing ink and silicone, causing the character to be wiped away. Note: The amount of release agent used during molding should not be too high, and the surface should be kept clean during subsequent processing and storage.   2. The time or temperature of baking after screen printing is insufficient, pay attention to: screen printing ink should be fully cured   Solution: Check the set temperature of the baking tunnel furnace and the running speed of the tunnel furnace. Check again whether the tunnel furnace and circulating fan are open   3. Screen printing ink problem   Note: Can not use the wrong ink < silicone screen printing ink >   In SUMMARY: Screen printing is a very important process, in the operation process to correctly pay attention to whether the surface of the silicone products is clean, pay attention to the baking temperature and time after screen printing, especially in order to save costs with low quality screen printing ink and use others to replace, which will lead to the emergence of adverse conditions, affecting the quality of silicone products. In the end, it's not worth it!

What are the methods of silicone products to close the mold line? How do silicone products go to the mold line? To understand this, we must first understand the concept of the closing line, small series to tell you what is the closing line. Closing line, is the terminology of the mold in the line, refers to the convex, concave mold referred to as the upper and lower mold and two molds compressed together this is called closing mold. The interface line that will appear in the mold closing place after compression molding is called the mold closing line.   Generally, as long as it is open two pieces of inverted mold molding or injection molding products will appear the situation of mold line! So the mold line will directly affect the appearance of silicone products, for the mold line we have what methods to deal with it?   Silicone products to the mold line method 1: The use of flow polishing machine for grinding: this machine is a flow grinding method with higher grinding efficiency, composed of stepless speed regulation motor, fixed grinding cylinder and rotary chassis, driven by the rotary chassis, the internal material mechanical energy movement, the formation of eddy flow, in a short time to complete the grinding and polishing. Can the product mold line repair especially beautiful!   Silicone products to the mold line method two: the use of high-speed trimming gun, you can use the high-speed trimming gun to play the running-in mold line! But this grinding up a little troublesome, more manpower!   Silicone products to the mold line method three: The use of grinding and polishing machine, polishing machine is also known as grinding machine, often used as mechanical grinding, polishing and waxing. The working principle is: the motor drives the sponge or wool polishing disc installed on the polishing machine to rotate at high speed, because the polishing disc and polishing agent work together and friction with the surface to be polished, and then can achieve the purpose of removing paint pollution, oxidation layer and shallow marks. The speed of the optical disc is generally 1500-3000 r/min, mostly stepless variable speed, which can be adjusted at any time according to the need during construction.   Silicone products to the mold line method four: The silicone products are put into the grinder and the small particles of the grinding stone, the water is put into the grinding stone, the grinding machine is equipped with water and sand in the grinder bucket, the high-speed stirring, the grinder has a certain grinding, polishing characteristics, and the silicone products are rubbed back and forth with the sand and stone during the mixing process, the self-disassembly of the product and some surface defects are removed, which can achieve the grinding effect and mirror effect!   Now many customers are based on the appearance of silicone products to determine the quality, and the raw edge problem can be recognized at a glance, so the most obvious nature is the most important part, and the problem about the raw edge self-removal is mainly caused by two factors! First of all, whether there are corresponding measures in the cutting of the product, at present, if you want to maintain the yield and high quality of the product, you have to carry out artificial trimming, and the efficiency of artificial trimming is slow, and the quality is not fixed at all, and if you want to solve the problem of raw edges, you need to control the weight of the raw materials in the vulcanization process, and the raw edges around the self-removing edges will naturally increase and thicking. So to control the weight of the product is to control the quality of the product!   On the other hand, the accuracy of the mold, the upper and lower precision of the mold fails to reach the corresponding spacing, the raw edge and self-dismantling of the product will be thickened. And the gap between the mold line is too small to open the mold, so the difficulty of self-dismantling is here, to make a good self-dismantling and mold line is to determine the quality of the product is good, and a mold if the raw edge of the product is treated to be perfect, it also reduces a lot of trouble for the product in manual trimming treatment!