October 17, 2022

A brief overview of the dust ring and its sealing function.

The dust-proof ring is applied to the hydraulic pneumatic piston rod, which is mainly used to remove the dust attached to the outer surface of the piston cylinder block and prevent sand, water and pollutants from entering the sealed cylinder block. At present, most of the dust rings actually used are made of rubber materials. Their working characteristics are dry friction, which requires rubber materials to have particularly good wear resistance and low compression permanent deformation performance. In recent years, it has also gradually promoted the use of new dust seals with other mat

October 17, 2022

Superiority and application of fluorine rubber O-ring

Someone asked what is the fluorine rubber O-ring? Maybe not, but it has a wide range of uses and is indispensable in people's life. As the name implies, fluorine rubber O-ring is an O-ring made of fluorine rubber. In short, it is an annular product made of fluorine rubber. So what exactly is the fluorine rubber O-ring used for? All friends who are familiar with industrial products know that it is widely used in automobiles, electronic products, aerospace, ships and so on. Now the social industry is also developing rapidly. With the progress of the times, the fluorine glue material is al

October 08, 2022

How to do with mold on the top of the seal? Three ways to teach you to remove!

Seal performance is stable, will not occur thermal expansion and contraction phenomenon, while having good elasticity and resilience, in many industries have applications, after using the seal for a long time, inevitably will appear on the mold, then how to remove these mold spots? Today we will give you a specific introduction. 1.Use vinegar. In the removal of mold on the seal, you can use daily vinegar. In the cleaning time, not only can clean the moldy seal, but also clean the inside of the machinery and equipment, to achieve the effect of both to get rid of mold, but also

October 08, 2022

O-ring seal with abrasive grain wear

When the gap of the seal has relative motion, dust and sand in the working environment, etc. are adhered to the surface of the piston rod and brought into the cylinder with the reciprocating motion of the piston rod together with the oil film, becoming abrasive particles that invade the surface of the O-ring, accelerating the wear of the O-ring so that it loses its sealing properties. In order to avoid this situation, the dust ring must be used at the outstretched shaft end of the reciprocating seal. The roughness of the sliding surface is a direct factor affecting the frictio

September 29, 2022

Installation requirements for O-rings

First, installation of O ring (O rubber sealing ring) requirements Before installing the O-ring (rubber O-ring), check the following: 1. Whether the leading Angle is processed according to the drawing, whether the sharp edge is chamfered or rounded; 2. Whether the inner diameter is burr removed and there is no pollution on the surface; 3. Whether the seals and parts have been coated with grease or lubricating liquid (to ensure the medium compatibility of the elastomer, it is recommended to use the sealed liquid to lubricate); 4. Grease

September 29, 2022

Requirements and installation considerations for sealing ring devices

The sealing ring is the most important and effective means to solve the leakage problem of hydraulic system. If the sealing ring of the hydraulic system is poor, the sealing ring may not be allowed to leak out, and the leaking oil will pollute the environment; It may also cause air to enter the oil absorption chamber, affecting the performance of the hydraulic pump and the stability of the movement of the hydraulic actuator. Therefore, the reasonable selection and design of the sealing ring device is very important in the design of the hydraulic system, the sealing ring device requirements are

September 22, 2022

What is a static seal?

A static seal usually refers to a seal between two stationary surfaces. The so-called static seal refers to a seal that is in a static state without relative motion during the operation of the bearing. A seal without relative motion between the sealing couplings is called a static seal. A seal without relative motion between the two couplings at the sealed part of the static seal is called a static seal. 1. The so-called static seal refers to the seal that is in a static state without relative motion during the operation of the bearing. The static seal basically uses an "O" type

September 22, 2022

What are the scopes of fluorine rubber O-rings?

The sealing ring is very important for many machinery industries and industrial industries. Only when the sealing ring reaches a certain level of precision can the overall process level and mechanical level be able to meet the requirements. Fluorine rubber O-rings are widely used in automobiles, aerospace, ships and other fields where product quality is very strict, so what are its specific scope of application? Below we will introduce it to you. First of all, the overall use of fluorine rubber O-rings is very extensive. Because of its good wear resistance, it can withstand high

September 18, 2022

Maintenance, function and introduction of O-ring seals

For the compression amount of the O-ring, one is that it is only compressed radially in the non-working state, and its compression is 8% to 13%, and the other is that it is compressed both radially and axially in the non-working state, and its compression 4% to 5%. For sealing rings of other materials, the optimum compression should be obtained by testing. Of course, it is related to the hardness of the sealing ring. The higher the hardness, the smaller the compression. Therefore, the O-ring sealing ring is mainly designed with the customer to find a more reasonable hardness. O-ring

September 18, 2022

What details should be paid attention to in the oil seal

1. Preparations and precautions before starting a. Comprehensively check whether the mechanical seal, as well as the installation of auxiliary devices and pipelines are complete, and whether they meet the technical requirements. b. Before starting the mechanical seal, perform a static pressure test to check whether there is leakage of the mechanical seal. If there are too many leaks, the cause should be found out and tried to eliminate. If the Dongguan oil seal is still invalid, it should be disassembled, checked and reinstalled. The general static pressure test pressure

September 09, 2022

The structure and classification of pan plug sealing ring

Teflon (PTFE) is a sealing material with better chemical resistance and good heat resistance than perfluoroelastomer. It can be used in most chemical fluids, solvents, hydraulic oils and lubricating oils. The compression set) is very small, so it can exert the sealing performance for a long time, and HiPerSeal uses various special springs to overcome the elastic problem of Teflon or other high-performance rubber and plastics, and develops a replacement for the vast majority of applications in static or dynamic (reciprocating or Rotary motion) seals, the temperature range can be from refrigeran

September 09, 2022

What faults are prone to occur when using O-rings?

O-rings are prone to failure due to improper use of daily work and other factors, such as overheating of the rubber ring. The failure of the O-ring will not only delay the daily operation, but also waste manpower and material resources and cause losses. Therefore, you must be familiar with the solutions for different situations. 1. Overheating of the O-ring: If the O-ring is overheated, check the sealing chamber of the centrifugal pump and its cooling device as soon as possible. This inspection is mainly to check whether there is any blockage in the equipment. If there is a blockage

August 29, 2022

What are the scope of application of O-ring

O-rings are suitable for being installed on various mechanical equipment, under the specified temperature, pressure, and different liquid and gaseous media, to play a sealing role in static or moving states. Various types of seals are widely used in machine tools, ships, automobiles, aerospace equipment, metallurgical machinery, chemical machinery, construction machinery, construction machinery, mining machinery, petroleum machinery, plastic machinery, agricultural machinery, and various instruments and meters. element. O-rings are mainly used for static sealing and reciprocating sealing. When

August 29, 2022

The performance and advantages of the sealing ring

In addition to the general requirements for the material of the sealing ring, the sealing ring should also pay attention to the following conditions: (1) Elasticity and resilience; (2) Appropriate mechanical strength, including expansion strength, elongation and tear strength, etc. (3) The performance is stable, it is not easy to swell in the medium, and the thermal shrinkage effect (Joule effect) is small. (4) It is easy to process and form, and can maintain precise dimensions. (5) Does not corrode the contact surface, does not pollute th

August 21, 2022

The function and rational use of automobile oil seal

Automobile oil seal is a mechanical component used to seal grease (oil is a very common liquid substance in the transmission system, and also generally refers to a general liquid substance). Lubricating oil leaks. What is the function of the car oil seal? 1. Prevent sediment, dust, moisture, etc. from intruding into the bearing from the outside; 2. Limit the leakage of lubricating oil in the bearing. The requirements for the oil seal are that the size (inner diameter,

August 21, 2022

What are the factors that affect the oil seal effect?

The skeleton oil seal is a typical representative of the oil seal. Generally speaking, the oil seal refers to the skeleton oil seal. The effect of the oil seal is generally to block the parts that need to be lubricated in the transmission parts from the output parts, so as to prevent the leakage of lubricating oil. The skeleton is like the steel bar inside the concrete member, which has the effect of strengthening and enables the oil seal to maintain its shape and tension. According to the structure method, it can be divided into single lip skeleton oil seal and double lip skeleton oil s

August 13, 2022

How to install the hydraulic seal

Common hydraulic seals for hydraulic cylinders are of the following types: dust seals, piston rod seals, buffer seals, guide support rings, end cap seals, and piston seals. Hydraulic cylinder is an energy conversion hydraulic actuator that converts hydraulic energy into linear motion mechanical work. Before installation, the surface quality of the seal should be checked first, and the geometric size and accuracy of the seal should meet the standard requirements. Guohao has sorted out the method of installing hydraulic cylinder seals:

July 29, 2022

Common sense of general use of sealing rings

The following points need to be paid attention to when using the sealing ring: 1. Purchasing sealing rings: choose reputable brands or long-term cooperative suppliers and supply channels to ensure that the product quality can be well checked and maintain a stable quality level. 2. Storage: The storage temperature of the sealing ring is preferably below 30 deg

July 28, 2022

The difference between PTFE single lip oil seal and double lip oil seal

The difference between PTFE single-lip oil seal and double-lip oil seal is as follows: 1. Structure: The PTFE single-lip skeleton oil seal has only a single sealing lip, and the double-lip oil seal has two lips of sealing and dustproof. Both oil seals are made of PTFE material, which has good wear resistance and corrosion resistance, and has a long service life.

July 27, 2022

How is the size and diameter of O-rings graded?

Dimensioning of O-rings: Only the inner diameter and wire diameter are marked. According to the standard, the wire diameter is: 1.8, 2.65, 3.55, 5.3, 7 (because the standard is made in imperial units, so the metric units are replaced with decimals) There are many inner diameter specifications, usually relying on the standard.

July 26, 2022

Advantages and disadvantages of PU polyurethane sealing ring and Tianran rubber seal

PU polyurethane sealing ring Polyurethane has very good mechanical properties, wear resistance and high pressure resistance are far superior to rubber, aging resistance, ozone resistance and oil resistance are quite good. The disadvantage of PU polyurethane sealing ring is that it is easy to be hydrolyzed at high temperature. It is generally used in the sealing link of high pressure resistance and wear resistance. PU polyurethane sealing ring is widely used in the hydraulic industry, and the general operating temperature

July 25, 2022

Installation Guide for Skeleton Oil Seals

First, check whether the lip of the skeleton oil seal is intact before installation. If the damage occurs at the beginning, do not proceed to the next installation, otherwise the oil cylinder leakage cannot be avoided after installation. Next, check whether the lower spring is clamped, check whether the outer diameter is damaged, and the oil seal on the hand does not have the damage problem just mentioned, then it can be shown that this is a qualified skeleton oil seal that can be installed. Do not use the used oil seal for secondary installation. I

July 22, 2022

High performance rubber O-ring

Fluorocarbon rubber is a rubber containing fluorine in the molecule, and there are various types according to the fluorine content (ie monomer structure). The widely used hexafluoro rubber was first listed by DuPont under the trade name "Viton". High temperature resistance is better than silicone rubber, excellent chemical resistance, resistance to most oils and solvents (except ketones, esters), weather resistance and ozone resistance; poor cold resistance, the general working temperature range is -20~250 °C. Special formula can withstand low temperature to -40

July 20, 2022

The role of different types of bearing seals

Bearing seal ring, a kind of bearing seal, especially the ball bearing seal ring, the ball bearing seal ring has two upwardly extending circular protrusions on one end face of the ring, and the diameter of the ball bearing seal ring is small. The inner diameter of the protrusion matches the outer diameter of the inner ring of the ball bearing, and the protrusion with a larger diameter matches the outer diameter of the ball ring of the ball bearing; the inner diameter of the sealing ring is not smaller than the inner diameter of the inner diameter of the ball beari