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Dongguan silicone products factory to tell you what kind of silicone seal ring suitable for the environment?

Release time:

2019-05-14 12:30

Source:

Dongguan silicone products factory tell youSilicone sealing ringSuitable for what kind of environment?
 
Silicone sealing ringThere are many advantages. First of all, its heat resistance can work in a very low temperature environment, reaching a minimum of minus 100 degrees. It has good oxidation and ozone resistance in the air. Due to the molecular structure of silica gel, silica gel sealing ring has good air permeability and good selectivity to gas. Dongguan Silicone Products Factory uses silica gel sealing ring in many food and medical industries because it is non-toxic and tasteless.
Excellent insulation performance is another advantage, but the appropriate addition of carbon black, nickel powder, aluminum powder, etc. in the material can increase its electrical conductivity. Silicone ring also has hygroscopic properties, has the function of absorbing moisture in the environment and plays a role in isolation, but the water vapor resistance is poor. said so many advantages of silicone rubber seals. In fact, his shortcomings are more obvious, and its shortcomings determine the environment in which it is not suitable for the use of silicone seals.
 
First of all, it is not suitable for use in a working environment with a working pressure of more than 50 pounds.Silicone sealing ringAlthough silicone rubber is compatible with most oils, compounds and solvents, and has good acid and alkali resistance, it has no resistance to alkanoic and aromatic oils. There is not recommended in most concentrated solvents, oil, concentrated acid and diluted caustic solution in the use of silica gel seals.
 
Some special silicone sealing rings with special ingredients also have the properties of radiation resistance, flame resistance and oil resistance. However, the disadvantage of silicone rubber is that its mechanical properties are poor. It is not recommended to use silicone sealing rings in the working environment with stretching, tearing and strong wear. Usually, it is only used as static seal. Silicone seal ring is a fixed ring cover made of various silica gel as raw materials, which can match the gap between the ring or gasket on the bearing to prevent various moisture or oil leakage tools.
 
It is mainly used for waterproof sealing and preservation of daily necessities such as fresh-keeping boxes, drinking fountains, lunch boxes, heat preservation boxes, safes, water cups, ovens, etc. It is easy to use, safe and environmentally friendly, and is deeply welcomed by everyone.

The shortcomings of the decision in which the environment is not suitable for the use of silicone seals?
 
At room temperature, the physical and mechanical properties of 1. are not as good as most synthetic rubbers (except nitrile silicon and fluorosilicone rubber), and the mechanical properties of tensile strength and tear strength are poor. It is not recommended to use silicone sealing ring for stretching, tearing and strong wear in the working environment. Normally, only static sealing is used.
 
Although 2. silicone rubber is compatible with most oils, compounds and solvents, it has good acid and alkali resistance, but it is not resistant to water vapor and has no resistance to alkane hydrogen and aromatic oils. Therefore, it is not suitable for use in environments where the working pressure exceeds 50 pounds. Another: in most of the concentrated solvent, oil, concentrated acid and diluted caustic soda solution medium is not recommended to use silica gel sealing ring.
 
3. price is relatively expensive compared to other silicone rubber products. Silicone sealing ring is a kind of sealing ring. It is made of various silica gel as raw materials for fixing the ring cover, so that it can match the gap between the ring or gasket on the bearing to prevent various moisture or oil leakage. tool. At present, it is mainly used for waterproof sealing and preservation of daily necessities such as fresh-keeping boxes, electric rice cookers, water dispensers, lunch boxes, heat preservation boxes, fresh-keeping boxes, water cups, ovens, magnetized cups, coffee pots, etc. It is easy to use, safe and environmentally friendly, and is deeply loved by everyone.
 
So today, let's take a look at the silicone seal ring. First of all, let's know what is silica gel?
Silica gel, is a kind of high activity adsorption material, is an amorphous material, is a kind of rubber material, its chemical formula is mSiO2 · nH2O. And insoluble in water and any solvent, non-toxic and tasteless, stable chemical properties, in addition to strong alkali, hydrofluoric acid does not react with any substance. Because of its special performance, wide temperature range and excellent chemical properties, it is a special rubber together with fluorine rubber. Therefore, silica gel is also widely used in the production of various seals to meet various sealing requirements in our mechanical production and life.
 
The characteristics and application of silicone sealing ring So what are the advantages of silicone sealing ring compared with other materials?
 
Wide range of 1. temperature resistance
1. Heat resistance: It has much better heat resistance than ordinary rubber. It can be heated at high temperature without deformation and harmful substances. It can be used almost forever at 150°C without performance change, can be used continuously for 10000 hours at 200°C, and can be used for a period of time at 350°C. Widely used in heat-resistant occasions, such as: hot water bottle sealing ring.
 
2, cold resistance: ordinary rubber late for -20 ℃ ~-30 ℃, and silicone rubber at -60 ℃ ~-70 ℃ still has good elasticity, some special formula of silicone rubber can also withstand very low temperature, such as: low temperature sealing ring, the lowest can reach -100 ℃.
 
Silicone rubber with good 2. insulation performance has excellent electrical insulation performance, corona resistance (the nature of resisting quality degradation) and arc resistance (the ability to resist deterioration caused by high-voltage arc) are also very good.
　
3. moisture absorption performance of silicone ring surface energy is low, the moisture in the environment has the function of absorption and play a role in isolation.
　
Excellent weather resistance of 4. weather resistance refers to a series of aging phenomena such as fading, discoloration, cracking, pulverization and strength decline due to the influence of external conditions such as direct sunlight, temperature changes, wind and rain, etc. Ultraviolet radiation is the main factor to promote the aging of products. The Si-O-Si bonds in silicone rubber are very stable to oxygen, ozone and ultraviolet rays, and have excellent resistance to ozone and oxide erosion. In the case of not adding any additives, it has excellent weather resistance, and even if it is used outdoors for a long time, cracks do not occur. It is generally believed that silicone rubber seals can be used outdoors for more than 20 years.
 
5. material safety and environmental protection silicone rubber has its unique physiological inertia, non-toxic, tasteless, odorless, good preservation effect, and less interference by the external environment, long-term use of yellow, do not fade.
 
6. high gas permeability and selectivity to gas permeation
                   

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What is the difference between silicone plug and rubber plug

Silicone plug and rubber plug which one effect is good? Then today we will popularize their difference to where the end point is. First of all, rubber plug products, as a common type of industrial products and accessories, or have strong advantages, such as dust and water resistance, wear resistance, tear resistance, aging resistance, oil seal resistance and ozone radiation resistance, etc., while rubber materials are divided into various types, and the side materials over there can be made of dozens of compound materials, so different attribute functions can be deployed for different needs, as for some industries such as mechanical tight closure, electronic tight closure, vehicle construction and even aerospace and military industry, rubber blocking is the most suitable. Silicone rubber plug and rubber plug have one thing in common. They can be molded in the molding vulcanizer of silicone product manufacturers. The difference is that they are more environmentally friendly, have good high and low temperature resistance, feel better when touching by color hands, and can be in contact with human body skin for a long time. Therefore, silicone plugs for earphones and medical grade silicone plugs are widely used even in food silicone appliances, mainly or because of the material in particular the nature of the achievements of its scope of application. Silicone plug is different. Its material is mainly based on environmental protection advantages, material texture and comfortable application. Therefore, it is used in some electronic products, survival products and small-scale waterproof and dustproof household appliances. Its raw materials are mixed by precipitation method silica gel, high-fine molecular silicone gum and white carbon black. The molecular chain of the product is called heart, soft and comfortable to use! Compared with the materials of silica gel and rubber, they can be compared as follows: new technologies are used in traditional industries. Rubber materials have been heard for a long time in early years, so the comparison of rubber materials accounts for the majority. Up to now, more and more silicone rubber products have been reused because they can replace larger usage compared with rubber, namely environmental protection performance and various technologies, such as shape, pattern and color, etc. www.mingzhen2006.com

What are the fields of application of silicone keys for equipment

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The convenience of the use of industrial silicone buttons

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What are the molding techniques of rubber products?

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How to print the pattern on the transparent key

Some laser marking machines have played opaque keys. While using laser typing to knock out the paint, they will also burn the plastic parts that can transmit light, but cannot transmit light! Changzhou laser marking machine has a special device, which can adjust the machine to the function of laser processing light-transmitting key. The laser can clean the paint sprayed on the surface very clean without burning light-transmitting plastic, thus realizing light-transmitting key laser processing! YAG laser marking machine, the general laser marking machine can not do through the key! Light transmission keys, also called light transmission buttons, are widely used in electronic products. In dark environments, they can accurately and accurately find each button. The light transmission keys include a light transmission key body, an electronic switch located below the key body, and a luminous body. The luminous body is arranged on the lower side of the key body. A light guide body is arranged below the key body, and the light guide body has a body, the upper side of the body extends an extension to the position where the electronic switch is located, the outer surface of the extension is a first reflective slope, the lower surface of the body is a second reflective slope and doubles as a light touch surface that can be contacted with the electronic switch, and a light input part connected with the extension part and arranged corresponding to the light emitting body, the light emitting body emits light, the light is emitted to the first reflective slope through the introduction portion, and is reflected by the first reflective slope into the body, and the light entering the body is reflected by the second reflective slope out of the key body. The structure makes the light emitted from the light emitting surface of the key body more uniform, the key is more beautiful, and the user can accurately find the corresponding function key. The pattern and text on the keys are processed by laser typing! In our life, there are many keys and buttons that use laser typing and can transmit light, such as mobile phone keys, car audio keys, computer keys, and various electronic and electrical keys! www.mingzhen2006.com