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Dongguan Mingzhen Rubber & Plastic Products Co., Ltd.

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Dongguan Minz Rubber & Plastics Co., Ltd.

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Do you know that the retaining ring is the "auxiliary seal" of the O-ring?

Release time:

2019-06-10 12:30

Source:

Retaining ring isO-ringThe "auxiliary seal" you know?
 
O-ringThe possibility of being squeezed out can be eliminated by using a retaining ring. At the same time, this will increase the pressure rating of the seal. The retaining ring is a support ring made of a sealing ring material that is harder than the O-ring itself, but has sufficient elasticity to deform under pressure to close the gap. The retaining ring is arranged on the opposite side of the compression side of the O-ring in the groove;
 
If the O-ring needs to be sealed under the action of two-way pressure, the retaining ring shall be set on both sides of the O-ring. The groove width shall be increased according to the number of retaining rings. Let me see what the sealing material for the retaining ring is?
 
Such as leather, hard rubber and PTFE, the latter is especially suitable for making some small-size retaining rings, and at the same time used in working environments and occasions such as dynamic sealing rings. He has the advantage of very low friction. The main requirement for a retaining ring is that it will not collapse or creep, which in turn depends to a large extent on the size of the ring to be used with the appropriate groove size.
 
The retaining ring can be a cut-out annular sealing ring cut off from a single ring. The cut of a retaining ring should not have any deflection or abnormal shape in other manufacturing aspects, which will cause local weakening, flattening from the surface under pressure, or making the O-ring seal likely to squeeze into the surface.
What is the rubber O-ring in the low pressure condition?
 
Basic knowledge about the sealing ring in low pressure conditions (working environment or occasions).
 
To the safety valve seal, for example, the safety valve seal is a system of working pressure automatically open and close the safety protection of a class of valves, according to the principle of action can be a direct acting safety valve seal and non-direct acting safety valve seal two categories, spring loaded safety valve seal ring and pilot safety valve seal ring are the two forms of the representative of the safety valve seal. Take these two commonly used safety valve seals as an example, let's take a look at the main application of rubber O-rings (working environment).
 
Safety valve sealing ring is an automatic valve, he does not rely on external driving force and sealing, the seat O-ring load mainly by the spring preload or the pressure of the working medium provided, O-ring load compared to other types of valves to small sealing ring more difficult.
 
When the set pressure is low, the spring preload or the pressure of the working medium is correspondingly small, the seat O-ring load is small, and other types of sealing forms are difficult to seal. Due to the high elasticity of the O-ring, the sealing mechanism can ensure that the sealing effect is achieved under a small negative load. Under the condition of low pressure, the O-ring seal selected at the valve seat is more reasonable.

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Analysis of several objective causes of O-ring failure

More information

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