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欢迎进入慈溪市海升橡胶制品有限公司官网 Bookmark | Message | Sitemap | Contact Haisheng Welcome to the official website of Cixi Haisheng Rubber Products Co., Ltd.

National Consulting Hotline 400-0590-280

Hot Keywords: Watch O-ring Fluorine rubber O-ring High-precision lighter O-ring Electric heating tube Silicone sleeve Medical device sealing ring

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Contact Haisheng Rubber Products

Service Hotline: 400-0590-280
  • Phone: 0574-63405708
  • Fax: 0574-63408757
  • Email: owner@sealing-ring.com
  • Address of Company: Changhe Town Industrial Park, Cixi City, Zhejiang Province

Haisheng Rubber takes you to understand the functions and characteristics of fluoro rubber seals

Fluoro rubber seals-Function: (1) Fluoro rubber seals impart elasticity and resilience; (2) Appropriate mechanical strength, including expanded strength, elongation and tear resistance. (3) The fluorine rubber sealing ring is stable in function, difficult to swell in the medium, and has a small heat shrinkage effect (Joule effect). (4) The fluorine rubber sealing ring is easy to be formed, and can adhere to the fine scale. (5) The fluorine rubber seal ring does not corrode the contact surface and does not pollute the medium. Fluoro rubber sealing ring-advantages: 1. The sealing ring should have outstanding sealing function under the operating pressure and a certain temperature range, and it can actively improve the sealing function with the addition of pressure. 2. The friction between the seal equipment and the moving parts should be small, and the friction coefficient should be stable. 3. The seal ring has strong anti-corrosion ability, not easy to age, long operating life, good wear resistance,

19-08 03 19-08

Haisheng Rubber takes you to understand the causes of leaks in seals

Why does the seal leak or not seal during use? What should we do if we encounter these pressure relief problems? Haisheng Rubber will take you to analyze it. 1. Manufacturing and assembly factors: All hydraulic components and sealing components have strict dimensional tolerances, surface treatment, surface finish, and shape and position tolerances. If the tolerance is exceeded during the manufacturing process, such as: the piston radius of the cylinder, the depth or width of the seal groove, the tolerance of the hole size of the seal ring, or out-of-roundness due to processing problems, etc., the part itself has a congenital leakage point. Leaks occur after assembly or during use. 2. Assembly factors: The hydraulic components should be prevented from being subjected to brutal operation during assembly. If excessive force is applied, the parts will be deformed, especially the cylinder body and the sealing flange are beaten with copper rods. Will part

19-08 03 19-08

Haisheng Rubber takes you to understand the environment that the gasket is suitable for

There are many advantages of silicone gaskets. The first is that its heat resistance can work in a very low temperature environment, which can reach minus 100 degrees, and has good resistance to oxidation and ozone in the air. The structure makes the silicone sealing ring have good air permeability and good gas selectivity. Because it is non-toxic and tasteless, it is used in many food and medical industries. Outstanding insulation performance is another advantage, but if carbon black, nickel powder, aluminum powder, etc. are appropriately added to the material, it can increase its conductivity. Silicone sealing ring also has hygroscopic performance, which has the function of absorbing and isolating the moisture in the environment, but has poor resistance to water vapor. Said so many advantages of silicone seals. But silicone is not a panacea. Its disadvantages are also more obvious

19-08 03 19-08

Haisheng Rubber takes you to understand the causes of whitening of rubber products

In life, many people must have seen that rubber products will turn white after a period of use. For example, under high humidity conditions, paints tend to turn white. Oil injection is a liquid compounding agent such as softener, tackifier, lubricant, plasticizer, etc., which is separated on the rubber surface to form a layer of oil. In practice, the appearance of frost on the rubber surface is sometimes presented in one way, but sometimes it is presented in two or three ways together. (1) Inappropriate formula planning: Full spray: common in sulfur, accelerator, active agent, and antioxidant. Relocation spray: common in processing aids, relocating antioxidants. Antistatic agent generation and ejection: common in accelerators of sulfur vulcanization systems and the use of reaction products to stay in reaction: common in organic peroxide vulcanization systems, low molecular weight excessive stress ejection: common in inorganic fillers

19-08 03 19-08

Haisheng rubber takes you to know the performance of seals

The sealing ring has excellent sealing performance and high working life. The working life of dynamic pressure sealing is 5-10 times higher than conventional rubber sealing products, and it can reach tens of times. Under certain conditions, it can have the same life as the sealing base. The friction resistance of the seal ring is small, and the dynamic and static friction forces are equal. It is 1 / 2-1 / 4 of the friction force of the "0" rubber ring, which can eliminate the "crawl" phenomenon of low-speed and low-pressure movement. The seal ring is highly abrasion-resistant and has automatic elastic compensation function when the sealing surface is worn. Good self-lubricating performance of the seal ring. Can be used as oil-free lubrication seal. The sealing ring structure is simple and easy to install. Sealing ring working pressure: 0-300MPa; working speed: ≤15m / s; working temperature: -55 & mdash

19-08 03 19-08

Haisheng Rubber takes you to know how to choose the right O-ring for you

Do you know the factors to consider when choosing an O-ring? The following Haisheng Rubber will give you a brief introduction, hoping to help everyone. When choosing O-ring specifications, you must first determine the material of the O-ring. Currently in industrial parts, the materials of O-rings are NBR nitrile rubber, NR natural rubber, CR neoprene rubber, EPDM EPDM rubber, HNBR hydrogenated nitrile rubber, SILICOME silicone, FKM, VITON, fluorine rubber, FLS silicone fluorine rubber, PU polyurethane, SBR styrene butadiene rubber, Buna butadiene rubber, acrylic rubber ACM, PTFE, polytetrafluoroethylene and so on. Each of the above materials has its own purpose and purpose, including oil resistance, chemical resistance, high and low temperature resistance, wear resistance, and so on. So when choosing O-ring specifications

19-08 03 19-08

Haisheng Rubber takes you to understand the application fields of fluorosilicone O-rings

Fluorosilicone rubber O-ring O-shaped seal Because the main chain is a semi-inorganic silicone structure, it maintains the excellent properties of silicone materials such as heat resistance, cold resistance, high voltage resistance, weather resistance, etc. With the introduction of fluorine-containing groups, the fluorosilicone rubber ○ -ring ○ -shaped seal has excellent hydrogen-resistant solvents, oil resistance, acid and alkali resistance, and lower surface energy performance of organic fluorine materials. Fluorosilicone O-rings can be widely used in aerospace, aviation, automotive, power, electronics, textiles, machinery and construction. Let ’s take the example of fear of aerospace and automotive. 1. Aerospace industry In the aerospace industry, in the aircraft manufacturing industry, it is mainly used in the aviation industry to manufacture various seal products (seals / contacts) that are resistant to fuel oil, lubricants, hydraulic oils, solvents, etc. Such as various types of dynamic and static ○ ring

19-08 03 19-08

Haisheng Rubber takes you to understand the characteristics of silicone seals

Silicone seals are familiar to many people, but little is known about oily silicone seals. So what are the characteristics of oily silicone seals? Next Haisheng Rubber will answer for everyone. Oil-extending silicone is also known as oil self-lubricating silicone. In order to make the product look smoother, feel better, and facilitate assembly, oil-extending silicone is often selected for production. Oil-extending silicone seals have the following characteristics: 1 、 Good self-lubricating performance and processing performance; 2 、 Oil-emitting silicone seals have good heat resistance, electrical insulation, weather resistance, hydrophobicity, physiological inertia and small surface tension, in addition, they have low viscosity temperature Coefficient, high compression resistance, some varieties also have radiation resistance; 3, oil-releasing silicone seals have a certain slow-release effect, which guarantees the lubrication effect

19-07 16 19-07

Y-ring sealing principle

After we understand what a Y-ring is, we can deeply understand the sealing principle of the Y-ring. What is the sealing principle of the Y-ring? Next, let's take a closer look at its knowledge points. In order to obtain the initial seal, when designing the sealing lip of the Y-ring, there is a certain interference with the inner and outer lips. When the sealing ring is installed in the groove, the sealing lip only contacts the metal at the bottom of the groove on the sliding surface, which generates a certain prestress and achieves the effect of sealing. Under the action of pressure, contact stress is generated due to deformation in the circumferential direction of the sealing lip. As the liquid pressure increases, the deformation and contact pressure also increase, and the Y-ring achieves the effect of self-sealing. When there is no internal pressure, only a small contact pressure is generated due to the deformation of the lip tip. After the internal pressure is applied, the medium

18-10 27 18-10

What is a Y-ring

We used to know a lot of O-rings and were not very familiar with Y-rings. Today, let us understand the Y-rings and their characteristics. The Y-ring seal is a lip seal, which belongs to a type of lip seal. Lip-shaped seals refer to a class of seals in which the pressured surface of the seals is made into a lip shape and has a pressure-enhancing sealing effect. The structural forms are V-shaped, U-shaped, Y-shaped, L-shaped, J-shaped and various special shape. The Y-shaped sealing ring has a Y-shaped cross section, which has a small friction coefficient and easy installation. It is widely used in high- and low-hydraulic machinery, hydraulic and pneumatic machinery reciprocating piston or piston rod seals. The Y-ring can be adapted to the requirements of pressure and sealing performance by changing the cross-sectional structure and size. Y-shaped ring is characterized by a pressure of 1

18-10 25 18-10

Take you to know gasket seals

Gasket sealing occupies a very important position in modern industry, and it has been paid more and more attention by people. The development of gasket sealing technology has developed with the development of pressure vessels, and the application range has become wider and wider. With the rise of modern industry, especially the petrochemical industry, atomic energy industry, and large-scale power stations, the pressure vessels have developed toward high temperature, high pressure, high vacuum, deep cold and large-scale, and new requirements have been set for gasket sealing. Gaskets can be divided into circular, oblate, rectangular and oval shapes according to their shape. The circular gasket has many cross sections, such as rectangular, trapezoidal, corrugated, circular, toothed, etc. The requirements for gasket materials usually include the following. (1) It has good elasticity and resilience. (2) It has proper plasticity and can be compacted after compression.

18-10 11 18-10

The importance of choosing silicone products in life

Today, silicone products are used in a wide range of applications, such as face washers, tableware, watches, toys, medical machinery, and more. An integral part of life. Silicone products also have a great impact on our lives. For mischievous bear children, accidents often occur. According to media reports, a two-year-old child accidentally bite a spoon and swallowed it, causing stomach pain. Fortunately, he was sent to the hospital for treatment in time. It is understood that the plastic spoon is relatively hard, so I have trouble removing it. In order to prevent the child's digestive tract from being damaged, a sheet made of silicone products was placed in the stomach and the broken spoon was wrapped. This problem also arises from parents' choice of children's tableware toys. Accidents are often inevitable for infants, so parents

18-10 08 18-10

Take you easy to understand the application and process of rubber O-rings

There are many types of sealing products and different working conditions, such as heat resistance, oil resistance, chemical resistance, and working conditions (static, dynamic, rotating and swinging, etc.), speed, and working pressure. Therefore, the rubber seals used for mechanical seals must first consider the conditions of use or special conditions on the rubber, and then comprehensively consider the reasonable formula and processing technology in the vulcanization promotion system, reinforcing filling system, softening system, and protection system. Generally used for mechanical sealing, the rubber must have good elasticity and low compression set to meet the special performance requirements of different product conditions. As a dynamic seal, it is also required that the rubber material has a certain tensile strength, good abrasion resistance and tear resistance.

18-10 07 18-10

What is a natural rubber seal

Generally speaking, the performance of rubber seals refers to the properties of natural rubber. It is a solid material made from natural rubber latex collected from rubber trees and processed by coagulation and drying. Natural rubber is a natural polymer compound with polyisoprene as the main component. Its molecular formula is (C5H8) n. Its rubber hydrocarbon (polyisoprene) content is above 90. It also contains a small amount of protein, fatty acids, Sugar and ash. Natural rubber has high elasticity at room temperature, a little plasticity, very good mechanical strength, small hysteresis loss, low heat generation during multiple deformations, so its resistance to flexion is also very good, and because it is non-polar Rubber, so good electrical insulation. At present, most rubber seals on the market are synthetic rubber, which is the same as plastic and fiber.

18-09 28 18-09

Does friction affect the use of O-rings?

Friction and wear are important factors influencing O-ring damage. The degree of wear depends mainly on the amount of friction. When the liquid pressure is small, the friction of the O-ring depends on its pre-compression. When the working fluid is under pressure, the friction force increases with the increase of the working pressure. When the working pressure is less than 20 MPa, the relationship is approximately linear. When the pressure is greater than 20MPa, as the pressure increases, which increases the contact area between the O-ring and the metal surface, does the friction force affect the application of the O-ring gradually, and the increase in friction force is correspondingly slow. Under normal circumstances, the life of the O-ring will decrease with the increase of the liquid pressure in a approximately square relationship. The increase of friction force causes a large amount of frictional heat between the rotating or reciprocating shaft and the O-ring. Due to

18-08 10 18-08

What to do if there is a small problem in the use of rubber O-rings?

Rubber O-rings are often used in some places that need to be sealed. These places have a feature that the gaps are matched, and they are often engraved to match. It also plays a role in shock absorption. However, many people use it and find that the O-ring is squeezed open, some are squeezed between the gaps and bitten, and some are gradually distorted because of the use! So how did these phenomena occur? How should we solve it? 1. Gap bites Sealed parts have poor geometric accuracy (including roundness, ovality, cylindricality, coaxiality, etc.), misalignment between parts, and swell of the inner diameter under high pressure, which will cause seal gaps The expansion of the gap and the exacerbation of the gap extrusion phenomenon. Measures to prevent gap bites are the hardness and seal of the O-ring

18-08 07 18-08

5 methods to determine the quality of rubber products

1 Resistance to weight gain in media can be sampled from the finished product, immersed in the selected medium or media, weighed after a certain temperature time, and inferred the type of material according to the weight change rate and hardness change rate. For example, when immersed in 100 degree engine oil for 24 hours, the change rate of NBR, fluorine rubber, ECO, CR quality and hardness is small, while NR, EPDM, SBR have more than doubled the weight and the hardness changes greatly, and the volume expansion is obvious. 2 Hot air aging test Take a sample from the finished product and put it in the aging box for one day to observe the phenomenon after aging. Can be graded and gradually heated. For example, CR, NR, SBR will be broken at 150 degrees, NBR EPDM is also flexible. Normal NBR will be brittle when it rises to 180 degrees;

17-06 22 17-06

Material characteristics of Viton o-ring

Fluorine rubber (FKM) is a synthetic polymer elastomer containing fluorine atoms on the carbon atoms of the main or side chain. Due to the strong negative charge of fluorine atoms, its strong electron withdrawing ability makes the CC bond energy on the polymer molecular chain change greatly. The main valence bond is more stable; at the same time, since the volume of the fluorine atom is slightly larger than that of the hydrogen atom, it can form a shielding effect on the molecular chain and be protected from the external corrosive medium. These structural characteristics make it have incomparable properties with other rubbers, such as high temperature resistance, oil resistance, chemical resistance, good physical and mechanical properties and weather resistance, electrical insulation and radiation resistance, etc. The best overall performance. Applications: Fuel hoses, filler pipes, fuel pump and injection device seals, valve stem seals, power piston seals, crankshafts

17-06 22 17-06

O-ring rubber material English abbreviation

Material name Chemical description English abbreviation English alias Nitrile rubber Acrylonitrile-butadiene rubber NBRBuna-N Chlorobutyronitrile rubber Hydrogenated acrylonitrile-butadiene rubber HNBRHNBR EPDM ethylene-propylene-diene rubber EPDMEP EPT Neoprene Diene chloroprene rubber CRNeoprene silicone silicone rubber WMQPVMQ natural rubber natural rubber NRNR

17-06 21 17-06

Precautions for installing o-rings

(1) Check the appearance before installation. The surface must be free from defects such as burrs, impurities, dust and scratches, and the diameter of the section must be uniform; (2) Apply hydraulic oil or grease before installation; (3) During installation To prevent twisting or discounting or lifting. At the same time, prevent the appliance from being scratched. (4) The compression amount of the section diameter of the o-ring installation accounts for (δ1 + δ2) of 5% to 3.5%. It is used to obtain a large value for fixed seals and a small value for movable seals. (5) When installing, first consider the hardness of the o-ring to prevent it from being squeezed into the sealing gap. Select the appropriate hardness of the o-ring according to the sealing gap and working pressure. The rubber hardness should change with the working pressure and the gap size. , The pressure is high, the hardness should be slightly larger when the gap is large, otherwise it is slightly smaller. (6) To prevent bumps during installation, first use a file to smooth out sharp hairs

17-06 21 17-06
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