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Dongguan Minz Rubber & Plastics Co., Ltd.

Add.: No.4, New Industrial Road, Shipai Tangwei, shipai town, Dongguan City
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O-ring seal applications, advantages and the choice of hardness?

Release time:

2019-05-17 12:30

Source:

StandardO-ringused in various industries?
 
O-ring is suitable for installed in a variety of mechanical equipment, in the specified temperature, pressure, and different liquid and gas medium, in the static or motion state from the sealing effect.
 
In machine tools, ships, automobiles, metallurgical machinery, chemical machinery, construction machinery, construction machinery, mining machinery, petroleum machinery, plastic machinery, agricultural machinery, and various instruments, a large number of various types of sealing components are used. O-ring seal is mainly used for static seal and reciprocating motion seal.
 
Used for rotary motion sealing, in low speed rotary sealing device. O-ring seal is generally installed in the outer circle or inner circle on the cross-section of the rectangular groove from the sealing effect. O-ring in the oil, acid and alkali, grinding, chemical erosion and other environments still play a good sealing, shock absorption.
 
Therefore, O-ring is a kind of seal widely used in hydraulic and pneumatic transmission system,O-ringIts own sealing effect does not require periodic adjustment. When it is used for sliding sealing, the sealing effect can not be affected by the direction of movement. It is small in size and convenient to use. Because of the large adaptability of the sealing ring, the application range is very wide. However, it is easy to deform when the pressure peak reaches a certain pressure, and it is possible to extrude the gap. It is widely used in water conservancy projects.
The relationship between rubber O-rings and "hardness?
 
The choice of hardness of rubber O-ring is more important. Such as a power station pump turbine hardness of 70(Shore) sealing ring, often peeling, or even transverse cut, after the use of 85~90(Shore) sealing ring, the effect is ideal. Low hardness, easy installation, but prone to peeling, installation damage, extrusion and even pressure. The hardness is too high and the installation is inconvenient. Usually rubber O-ring hardness 40~90 IRHD, but in the use of general 70 IRHD is more appropriate, for silicone rubber is an exception, the general use of 60 IRHD.
 
What are the advantages of choosing rubber O-rings?
 
So, if you choose a rubber O-ring, what is his advantage? Mingzhen tells you that we refer to the following 6 points.
1. suitable for a variety of sealing forms: static seal, dynamic seal rubber O-ring seal suitable for a variety of materials, size and groove have been standardized, strong interchangeability
 
The 2. is suitable for various modes of movement: rotary movement, axial reciprocating movement or combined movement (such as combined rotary reciprocating movement)
 
The 3. is suitable for a variety of different sealing media: oil, water, gas, chemical media or other mixed media through the selection of appropriate rubber materials and appropriate formula design, to achieve effective sealing of oil, water, air, gas and various chemical media. The temperature range is wide (-60 ℃ ~ 220 ℃), and the pressure can reach 1500Kg/cm2 when fixed (used with reinforcing ring).
 
The 4. design is simple, the structure is small, and the assembly and disassembly are convenient. The rubber O-ring seal has a simple cross-sectional structure, a self-sealing effect, and reliable sealing performance. Because the rubber O-ring itself and the installation site structure are simple, and has been standardized, so the installation and replacement are very easy.
 
5. material variety rubber O-ring can be selected according to different fluids: (NBR), fluorine rubber (FKM), silicone rubber (SIL), ethylene propylene diene monomer (EPDM), chloroprene rubber (CR), natural rubber (NR), (HNBR), butyl rubber (IIR), silicone fluorine rubber (FLS), etc.
 
6. low cost to learn more about the problem of rubber O-rings, just inMingzhen Silicone Products FactoryOh!

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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

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