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Dongguan Minz Rubber & Plastics Co., Ltd.

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12 kinds of common rubber sealing ring special material? its medium?

Release time:

2019-06-10 12:30

Source:

12 CommonRubber seal ringDedicated material? Its medium?
 
12 common ones.Rubber seal ringSpecial sealing materials, including nitrile rubber sealing ring, hydrogenated nitrile rubber sealing ring, silicone rubber sealing ring, fluorine rubber sealing ring, fluorine silicone rubber sealing ring, ethylene propylene rubber sealing ring, neoprene rubber sealing ring, butyl rubber sealing ring, acrylic rubber sealing ring, rubber sealing ring, metal rubber sealing ring.
 
1. CR neoprene sealing ring material: sunlight resistance, weather resistance is particularly good. Not afraid of dichlorodifluoromethane and ammonia and other refrigerants, resistant to dilute acid, silicone grease lubricating oil, but in the aniline point of low expansion of mineral oil. It is easy to crystallize and harden at low temperature. Suitable for all kinds of exposure to the atmosphere, sunlight, ozone environment and all kinds of fire resistance, chemical corrosion resistance of the sealed environment. Not recommended for use in strong acids, nitro hydrocarbons, esters, chloroform and ketones. The general use temperature range is -55~120 ℃.
 
2. IIR butyl rubber sealing ring: particularly good air tightness, heat resistance, sunlight resistance, ozone resistance, good insulation performance; the polar solvents such as alcohol, ketone, ester, etc. have good resistance, can be exposed to animal and vegetable oil or oxide. Suitable for chemical or vacuum resistant equipment. Not recommended for use with petroleum solvents, kerosene or aromatics. The general use temperature range is -50~110 ℃.
3. ACM acrylic rubber seal ring: some resistance to oil, high temperature resistance, weather resistance are good, but the mechanical strength, compression deformation rate and water resistance is slightly worse. Generally used in automobile transmission system and power steering system. Not suitable for hot water, brake oil, phosphate ester. The general use temperature range is -25~170 ℃.
4. NR rubber sealing ring material: has good wear resistance, elasticity, tensile strength and elongation. However, it is easy to age in the air, becomes sticky when exposed to heat, is easy to expand and dissolve in mineral oil or gasoline, and is resistant to alkali but not strong acid. It is suitable for use in automobile brake oil, ethanol and other liquids with hydroxide ions. The general use temperature range is -20~100 ℃. 5. PU polyurethane rubber sealing ring: the mechanical properties of polyurethane rubber is very good, wear resistance, high pressure resistance are far better than other rubber. Aging resistance, ozone resistance, oil resistance is also quite good, but high temperature is easy to hydrolyze. Generally used for high pressure, wear-resistant sealing links, such as hydraulic cylinders. The general use temperature range is -45~90 ℃.
 
6. metal rubber sealing ring material: made of stainless steel wire, does not contain any rubber components, has a strong use characteristics. For example: in high vacuum, high and low temperature, strong radiation, and a variety of corrosive environment to maintain normal work. The seal ring skin is made of different materials such as stainless steel, copper, PTFE and other materials according to different uses. The coated metal rubber component is used as the lining core, which has the advantages of high sealing strength, good effect and reusable. The sealing ring lining core is a component made of different metal wire diameter and density, which is suitable for different pressure occasions. The general use range is -80~800 ℃. Such sealing rings are relatively expensive due to their high cost. But good performance, a wide range of use environment, people's unanimous recognition.

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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

Characteristics and uses of silica gel Silicone is a kind of rubber. The vulcanized silicone rubber has heat resistance, cold resistance, ozone resistance, atmospheric aging resistance and good electrical insulation properties. The disadvantage of silicone rubber is that the tensile strength and elongation at break are small, and the compression deformation is large. Suitable for making parts used in high temperature, low temperature, sunlight, atmosphere, ozone environment and electrical insulation parts. Dimensional accuracy and recommend marking tolerance Trajectory material is an elastomer, compared to the plastic material, the direct impact of the shrinkage rate of many and complex factors, precision than plastic parts more difficult to do accurate, in the specific design should be fully considered, there should be no high precision. If the basic size is too large to meet the dimensional accuracy required by the design, it can be solved by the method of deformation of the positioning column with the substrate. Where dimensional accuracy is required, there must be room for convenient mold repair in the design. Etched text and patterns Silicone substrate can be designed out of the trademark pattern and text, in the molding products at the same time molding out. The group and text on the products are convex and concave two types, considering the convenience of mold processing, are generally designed as convex. In order to facilitate the replacement of marks or models, the marked parts can be designed as inserts during mold design. When the product model changes, only the marked parts in the mold cavity can be replaced to meet the needs of mark replacement. As part of this type of article, it should be designed to allow the presence of flash debris at the contour of the insert tile at the marked location. For conductive rubber, the stroke is generally 0.8~1.5mm; the exhaust groove (I. e. gas pit) is designed to prevent adsorption between the PCB and the key action. For tact switches, the stroke depends on the stroke of the switch itself (and the stroke for preventing misoperation), as described later. If the substrate is not bonded to the PCB board, the structural element of the air slot can be omitted. The key design has a hand feeling problem. Different graphs correspond to different hand feelings. According to experience, when (FP-FC)/FP is 40%-60%, the hand feeling is better. Key Typical Structure and Application According to the specific occasions where the keys are used, as well as the specific requirements of the product for the service life, pressing force, and hand feeling of the keys, the structure and application of the keys are shown in the following figure. The life of the silicone key is directly related to the material and the inclined wall structure, and is determined according to the design requirements. Part of the product silicone key life reference: Remote controller: 500000 times; Telephone type: 1 million times; Laptop computers: 4 million to 5 million times; Computer keyboard: 500~10 million; The life of silicone keys for monitoring products is defined as more than 500000 times; The ordinary life of B super silicone keys is defined as more than 1 million times,

The convenience of the use of industrial silicone buttons

In order to solve the above problems and technical defects, after continuous updating and design, a multi-station silicone button trimming machine was invented, and a utility model patent was applied. The utility model relates to a multi-position silicone button trimming machine, which comprises a base, a gantry frame and four cutting cylinders, and the four cutting cylinders are arranged vertically on the top of the gantry frame in a horizontal straight line. The beneficial effect achieved by the utility model is that the structure design is reasonable. By adopting the combination design of four reinforcement tables and four cutting blades on the gantry, the device can simultaneously trim four silicone button products. Thereby greatly improving the efficiency of trimming processing of silicone products. With the continuous expansion of the silicone button market, how to improve the processing efficiency of the silicone button has made producers pay more and more attention. The trimming of the silicone button is an important step in the production process of the silicone button, and the trimming of the traditional silicone button The processing efficiency cannot be improved, which affects the overall production efficiency of the silicone button. Various types of silica gel have different microporous structures due to their different manufacturing methods. The chemical composition and physical structure of silica gel determine that it has many characteristics that are difficult to replace other similar materials: high adsorption performance, good thermal stability, stable chemical properties, and high mechanical strength. Silica gel according to its pore size is divided into: macroporous silica gel, coarse pore silica gel, type B silica gel, fine pore silica gel. www.mingzhen2006.com

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