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Dongguan Mingzhen Rubber & Plastic Products Co., Ltd.

18 yearsFocus on R & D and production of silicone rubber products

Become a respected supplier of silicone rubber products

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+86-136 6988 8704

Dongguan Mingzhen Rubber & Plastic Products Co., Ltd.
18 years focus on silicone rubber products research and development and production
Professional customization

Dongguan Minz Rubber & Plastics Co., Ltd.

Add.: No.4, New Industrial Road, Shipai Tangwei, shipai town, Dongguan City
Tel: +86-0769-8665 2688
Fax: +86-796-8180 6477
Contact: Miss Li +86-136 6988 8704
Mailbox:lixiaoxia@dgminz.com.cn

What is the reason for the aging of silicone products?

What is the reason for the aging of silicone products?

2021-03-12 09:09:14

There are also many chemical reactions, such as ozone. Ozone not only affects the aging phenomenon of silica gel, but also affects various aspects of human air. For silica gel products, ozone has a greater impact on silica gel products in the sealing ring of humid climate and environmental problems. Long-term placement in that environment will cause cracks in the direct aging of silica gel materials, while oxygen has an associated reaction with silicone rubber, it will also change the performance of silicone rubber, the use of performance decline and so on. Perhaps many friends who like online shopping know silicone products. From a macro perspective, those so-called silicone gifts, silicone accessories, silicone kitchenware, silicone miscellaneous pieces, etc. are all a small category of silicone products. In this way, the word silicone products is very large. What kind of silicone products are so popular among netizens. Silica gel is a kind of silica gel is dehydrated by the appropriate particle size of different porous material, in the silica gel products have an open porous structure, can absorb many substances, including moisture in the air and the distribution of tiny dust in the air, but also a good desiccant, adsorbent and catalyst carrier. The statement that the performance is superior, non-toxic, tasteless and resistant to high and low temperatures may be known to all as silicone products. Is the performance really so superior in all aspects? This is actually not certain. Only in terms of silicone products, more than 80% of the products have no problems and the customers have responded well. However, there are also some products with quality problems, but the occurrence of defective rate is not impossible, users will gradually age after long-term use. What are the causes of silica gel products. First of all, there are many reasons for the aging of silica gel products. Although the material performance is good, the aging time is different when applied in different fields for a long time. Some applications in high temperature places have aging phenomenon faster. For example, cracks will appear when the temperature reaches a certain height in industrial manufacturing, silicone parts will improve the oxygen diffusion effect to speed up the oxidation reaction of silicone rubber key material, which is also our common thermal effect, one of the common phenomena leading to deformation and aging of silicone rubber, so in the use of the process should be long-term maintenance of climate temperature modulation, appropriate water cooling and so on.

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What is the difference between the laser carving process of silicone keys

What is the difference between the laser carving process of silicone keys

2021-03-11 17:13:31

Laser engraving of silicone keys is abbreviated as laser engraving, which is also called laser marking in the industry. It is a kind of surface treatment process of silicone keys. Its appearance effect is similar to that of silk screen printing of silicone keys. Words and various symbol patterns are printed on the surface of silicone keys. Laser carving is the use of optical principle in the surface of the silicone key processing, so that the silicone key surface to form the need for text and symbol patterns, is mainly used in mobile phones, electronic dictionary keyboard and remote control buttons. Under the condition of sufficient light source, the appearance of silicone keys using laser carving process is very similar to that of silk screen keys, and it is difficult to distinguish between the two if not professionals. If you touch the characters of the laser keys with your hand, you will feel concave, while the characters of the silk screen keys will feel convex. However, the concave-convex feeling is very slight and needs careful experience. The purpose of laser engraving is to use laser to burn the color oil sprayed on the surface of silicone keys to produce the required characters and patterns. Therefore, silicone keys that need laser engraving usually need oil injection. For example, a silicone key has a black surface and red characters. According to this appearance requirement, we can realize the silk screen printing method of printing black characters first and then red characters. However, if the red characters are required to transmit light, then the silk screen printing process cannot be realized, because the black background cannot transmit light, and then we need to use laser engraving. No corrosion to metal, temperature resistance, high temperature resistance, good aging resistance. After curing, the rubber elasticity is maintained in a wide temperature range, and the insulation performance is excellent. It does not shrink during curing, and has good waterproof, moisture-proof and anti-aging properties. It can seal and bond electronic components and does not pollute the surrounding environment, fully complying with the requirements of the EU ROHS directive. Power potting glue has good fluidity, excellent ozone resistance, ultraviolet light resistance, aging resistance, and has good flame retardancy and thermal conductivity, and can also improve the waterproof level. Make the electronic components work normally under harsh conditions. Thereby prolonging the service life of electronic components. Many large and medium-sized electronic enterprise products are used to heat conductive potting silicone, is an excellent choice for LED power supply. Features and uses: Good adhesion and insulation, flame retardancy, improve the reliability of sensitive circuits and components, and extend the service life. Insulation, shock absorption, impact resistance, wide range of working temperature and humidity. Weather resistance, chemical resistance, heat resistance. Outdoor use eliminates the adverse effects of UV light, ozone, moisture and chemicals.

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What is the difference between silicone rubber products and screen printing

What is the difference between silicone rubber products and screen printing

2021-03-10 11:20:12

Seal ring mold printing is much simpler than silk screen printing. The mold printing does not need the second process to complete, and is directly formed with the product at one time. The mold printing can only make some relatively simple patterns, such as logo and other patterns can be made through molds and directly formed. Silk screen printing and mold printing are also different in processing into liquid silica gel books. Relatively speaking, the cost of silk screen printing is much higher. Considering the cost, the choice of the two can be made according to the complexity of the graph. In the molding process of solid silicone rubber products, many people do not know how the raw materials are cured by high-temperature molding. Raw materials, temperature and mixing are essential processes, and there is also an auxiliary agent that is one of the main auxiliary materials. Vulcanized crosslinking agent, if only the raw materials are put into the mold and enter the silicone key manufacturer for high-temperature curing and molding, the product cannot reach the curing effect, so have you understood the function of vulcanizing agent. Vulcanizing agent can be used in different kinds of rubber. At present, rubber vulcanization is the same as silica gel vulcanization. Its main function is to put the curing agent into the raw material of the seal, completely mix the curing agent and the raw material evenly and completely mix the raw material to achieve the curing effect. After curing at high temperature and strong pressure of the machine, the silicone molecules are cured at high temperature and transformed into high density compatible products. This kind of industrial rubber product is the earliest suitable for natural rubber materials, at present, the rise of silicone products manufacturing industry. At present, the color of vulcanizing agent is transparent, and at present it can still reach the level of environmental protection and safety. The main defect of compatibility with silica gel lies in the odor of rubber key curing agent manufactured by some enterprises or the yellowing of silica gel products. The stability of catalytic effect is the key to it. Many silica gel processing plants also have various undesirable conditions of products due to curing agent, so the stability of curing agent is very important. Screen printing is a post-process after the product is formed. Screen printing is mainly used, which is different from mimeograph and color printing. The main tools are screen printing and oil brush. Screen printing is a pattern made of an iron frame or a wooden frame, and this pattern is a pattern printed on the product by silk silicone products. When screen printing products, align the screen plate with the plane where the products need to be printed, and coat the screen plate with ink. The ink will leak from the gap of the screen plate pattern to form the corresponding pattern on the products, and then put it into the silicone key of the baking oven to dry. The temperature should not be too high. According to different products, the baking time and temperature are generally different, compared with mold printing, silk screen printing can do slightly complex patterns, can also be multi-color printing.

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If how to improve the production efficiency of silicone products

If how to improve the production efficiency of silicone products

2021-03-09 10:22:11

Change the discharging method of silica gel raw materials, and try to make the silica gel raw materials fill the whole mold cavity gradually from the side wall of the mold cavity to the sealing ring during the pressurization process. The silica gel raw materials of silica gel products can be divided into ordinary silica gel and meteorological silica gel according to their performance. Change the exhaust frequency and exhaust stroke, which requires higher working experience of the conditioner, because according to common sense, the larger the exhaust stroke of liquid silica gel, the more exhaust times, will be more conducive to exhaust, but this is not the case, need to be determined according to the structure of the product, some silicone products exhaust stroke will appear bad bubbles, and small to solve, silicone products factory. Identify the actual material of silicone products in the following ways:. 1. Ignition method, extraction of test articles, burning in gas, observing and checking the condition, naturally, if through observation, ignition, color tone and taste, people will also be shown more information content for silicone key manufacturers, such as NBR/PVC and glue. When there is an open flame, the fire splashes randomly, like water, the fire is self-contained, the smoke is thick and has peculiar smell, it must be noted that sometimes the glue with halogen-free flame retardant but no seal halogen will also self-extinguish, which depends on other methods to further deduce. 2. Ultra-low temperature method, extract the test article, produce a suitable ultra-low temperature natural environment with dry ice and ethanol, soak the test article in the natural environment of ultra-low temperature rubber products for 2-5 minutes, and feel the hardness and softness level of the O-ring at the selected temperature, for example, at -40 ℃, the silica gel and fluorine rubber with good heat resistance, acid and alkali resistance will be softer. 3, measuring the proportion, rubber keys with high-precision electronic scales, plus a cup of water, a hair can be, generally speaking, fluorine rubber proportion is larger, about 1.8, CR,ECO is also more than 1.3, the proportion is significantly larger can consider this kind of glue. Nowadays, due to the characteristics of silica gel itself, it can be used in many fields, and it is worth mentioning that it is environmentally friendly. In this way, it can be used in life, but in actual production, silica gel products will always be affected by multiple factors. It is necessary to understand some improvement methods. Appropriately increase the amount of vulcanizing agent added in silica gel raw materials, or select rapid vulcanizing agent, so as to speed up the vulcanization molding of silica gel products. The structure of the product determines that as long as the silica gel keys of silica gel products are not deformed and numb, if it is silica gel keys, pay attention to whether the load will be high.

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What is the appropriate hardness control of silicone O-ring

What is the appropriate hardness control of silicone O-ring

2021-03-08 11:16:18

In order to make the appearance neat and beautiful, it must be removed. This process is called trimming, O-ring seal insulation silicone pad, excellent high temperature resistance, silicone (edible liquid silicone grade silicone) can withstand high temperature of 200 ℃ and can be used for a long time. The raw materials produced by this product meet SGS standards, pass FDA food grade silicone testing standards, are tasteless and non-toxic, and the manufacturer produces according to the mold. The color and shape can be customized by the silicone product factory, the requirements for trimming are accurate dimensions and neat appearance. Friends who often contact silicone products will find that some silicone products feel soft and some silicone products are hard. This is the hardness of silicone key products often mentioned by silicone manufacturers. Silicon pixel products have different requirements on the hardness of rubber and plastic products in different occasions and different use environments. For example, silicone breast augmentation prosthesis has lower hardness in order to achieve the real feeling with the chest. Needle seals choose silicone products with different hardness for use in different fields. The regular low hardness can reach about 10 degrees, or even lower than 3-5 degrees. The regular hardness of silicone products usually used is between 30 and 70 degrees. Rubber products are also the reference hardness of most products, but the hardness of silicone products with special materials can reach about 80-95 degrees. Another is the common silica gel processing technology, that is, the processing technology of solid silica gel products. At present, the processing technology of solid silica gel products in the whole silica gel industry can achieve a lower softness of 10 degrees and a higher hardness of 90 degrees. Although higher can be achieved, the defect rate is too high, the product is brittle, the cost is high, and it is not easy to demold. The choice of rubber O-ring hardness is more important, such as a power station pump turbine hardness of 70 sealing ring, often peeling, or even transverse cut (cut, cut), after the use of 85~90 sealing ring, the effect of silicone products want. Unvulcanized rubber O-ring rubber material is viscous fluid under high temperature and pressure. At the stage of molding and vulcanization, the rubber material quickly fills the mold cavity. The surplus part (in order to prevent rubber shortage, the rubber material filled in the mold cavity and the silicone key must maintain a certain excess) overflows vulcanization, forming overflowing rubber (also known as waste edge and flash). Silicone sealing ring is mainly used for fresh-keeping boxes, electric rice cookers, water cookers, water dispensers, drinking water dispensers and lunch boxes, waterproof sealing and preservation of daily necessities such as heat preservation boxes, heat preservation boxes, water cups, ovens, magnetic sealing rings, coffee pots, etc.

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