July 18, 2022

What are the key points to pay attention to in the production and processing of sealing ring products?

Although the sealing ring is not large, if the quality is not up to standard, it will cause great confusion in our work and necessities of life. Therefore, when making seals, there are many things that must be paid attention to. Firs

July 14, 2022

Nitrile rubber O-ring seal, physical and chemical properties and application of O-ring

Hydrogenated nitrile rubber O-ring seal(HNBR) (1) Molecular structure (CH2-CH2)( CH2-CH)( CH=CH) (2) Theoretical performance Hydrogenated nitrile rubber O-ring The sealing ring is obtained by selectively hydrogenating the butadiene group in nitrile rubber. Hydrogenated nitrile rubber O-ring The perfor

July 11, 2022

O-ring, large size O-ring, thickness O-ring

O-ring O-ring is a rubber ring with a circular cross-section. Because its cross-section is O-shaped, it is called an O-ring. It is the most widely used one in hydraulic and pneumatic transmission systems. O-rings are annular rubber seals with a circular cross-section. They are mainly used for mechanical parts to prevent leakage of liquid and gaseous media under static conditions. I

July 08, 2022

How to judge the waterproof effect of silicone sealing ring

At present, many electronic products, mechanical products and automotive products on the market are becoming more and more aware of waterproofing, and they have further requirements in terms of environmental protection. Therefore, waterproof silicone rings are one of the most common sealing silicone products in modern product design. When it comes to waterproofing, it depends on the practical effect of the silicone rubber ring, but what I want to put forward today is that the waterproof effect of the silicone sealing ring is mainly formed by what factors?

July 06, 2022

Sealing ring material - how to choose hardness

The hardness and pressure of the sealing ring are related to the smoothness of the sealing surface. Simply speaking, the higher the hardness of the sealing ring, the stronger the compression resistance and the better the wear resistance. The surface finish is low, and the hardness of the sealing ring is low, but it should be noted that the hardness of the sealing material will decrease with the increas

July 05, 2022

Spring sealing ring

The pan plug seal is a U-shaped Teflon high-performance seal with a special spring inside. By the appropriate spring force plus the system fluid pressure, the sealing lip (surface) is pushed out and lightly pressed against the sealed metal surface to generate a very good sealing effect. The actuation effect of the spring can overcome the slight eccentricity of the metal mating surface and the wear of the sealing lip, while maintaining the expected sealing performance continuously.

July 04, 2022

Guide belt function and characteristics

The guide belt plays a guiding role. In order to prevent the wear of the cylinder barrel and the piston rod, it is extremely wear-resistant, low-friction, heat-resistant and chemical-resistant, allowing any foreign matter to be embedded in the guide wear-resistant ring to prevent the loss of particles to the cylinder and seals. . It has the properties of absorbing vibration, and has good wear resis

July 02, 2022

Material selection of pan plug seals in different working conditions

1. Pure PTFE: good chemical properties, wide temperature resistance range, small friction coefficient, small starting friction, easy to wear and crawl, in line with FDA certification, used in light load, chemical, food, pharmaceutical industries, operating temperature -60+ 260℃ 2. PTFE filled copper powder: good sliding and wear resistance, good crawling resistance, good compression resistance, good extrusion resistance; commonly used as ladder sealing ring, guide wear ring and other materials. 3. PTFE-filled carbon fiber: standard

July 01, 2022

How to distinguish the Y type seal between the shaft and the hole

How to distinguish the Y-type seal between the shaft and the hole can be confirmed by the following methods: 1. Distinguish from the inclination angle of the lip of the largest and smallest diameter sides of the Y-ring, that is, the inclination angle of the inner lip and the outer lip. If the inclination angle of the lip of the largest diameter side is smaller than the angle of the smallest diameter side, the side is used for the shaft, and vice versa for the hole. The Y-ring seals by the compression and tension of the inclined lip. The shaft

June 30, 2022

The difference between inner skeleton oil seal and outer skeleton oil seal

(TC, TB, TA) The inner skeleton oil seal is exposed, and the skeleton oil seal can be divided into single lip skeleton oil seal (SC, SB, SA) and double lip skeleton oil seal (TC, TB, TA) according to the structure. According to the skeleton type, it can be divided into inner skeleton oil seals (TC, SC), exposed skeleton oil seals (TA, TB, SB, SA), no skeleton oil seals and assembled oil seals. Nitrile rubber NBR skeleton oil seal, PTFE skeleton oil seal, polyurethane PU oil seal, etc.

June 29, 2022

The difference between piston seal and piston rod seal

The differences between piston seals and piston rod seals are: 1. Different sealing objects: the piston seal is the seal between the cylinder body and the piston, and the piston rod seal refers to the seal between the piston rod and the cylinder head. 2. Different effects and consequences: if the piston seal is not well sealed, it will affect the performance of the oil cylinder, and if the piston rod seal is not well sealed, oil will leak. 3. The position of the sealing groove is different:

June 28, 2022

What is the range of the interference of the sealing ring is generally appropriate?

The standard dynamic seal is generally 10~15% of the cut diameter, and the static seal is 15~20%. The interference of the O-ring is generally about 15%-30% in the static seal. In the dynamic seal, it is about 9%-25%, and the gas seal is halved. Other factors that affect the sealing performance of the sealing ring 1. The hardness of the O-ring O-ring material hardness is an important indicator for evaluating sealing performa

June 27, 2022

Y type seal specification

The cross-section of the Y-shaped sealing ring is Y-shaped and is a typical lip-shaped sealing ring. It is widely used in reciprocating sealing devices, and its service life is longer than that of O-rings. The applicable working pressure of the Y-shaped sealing ring is not more than 40MPa, and the working temperature is -30~80℃. According to the length and width ratio of the cross sectio

June 24, 2022

Fluorine rubber skeleton oil seal Fluorine rubber oil seal Inch skeleton oil seal specification

The oil seal is a typical representative of the oil seal. Generally speaking, the oil seal refers to the skeleton oil seal. The function of the oil seal is generally to isolate 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 bars in the concrete member, which acts as a reinforcement and enables the oil seal to maintain its shape and tension. According to the structure, it can be divided into single lip skeleton oil seal and double lip skeleto

June 23, 2022

Technical requirements for sealing rings

O-type rubber sealing ring is one of the most commonly used sealing rings at present. Many people are not very clear about the various performance and technical requirements such as sealing ring material and hardness when making choices. Since rubber is an elastic material, it will deform under load, especially in the case of high pressu

June 22, 2022

Excellent properties of polyurethane seals

Seals should generally have good physical and mechanical properties, high resilience, small compression set, reliable sealing, convenient processing and long service life. Silicone rubber seals are resistant to high temperature and low temperature, radiation resistance, vacuum resistance, non-polluting and non-toxic. The quality of the sealing ring directly affects the production efficiency of the mechanical equipment. If you buy inappropriate products, it will have a great impact on the efficiency of the equipment.

June 21, 2022

What factors are related to the shrinkage rate of rubber O-rings?

As a common sealing auxiliary accessory, rubber O-rings are also critical to the shrinkage rate of rubber O-rings. Dongguan Guohao Sealing Ring will share with you what factors are generally related to the shrinkage rate of rubber O-rings? 1. It is related to the vulcanization temperature, the higher the temperature, the greater the shrinkage;

June 20, 2022

How much do you know about rubber seals?

Advantages of rubber seals Suitable for a variety of sealing forms Suitable for a variety of purposes, materials, dimensions and grooves have been standardized, with strong interchangeability, suitable for dynamic sealing and static sealing.

June 18, 2022

Five details to pay attention to the sealing ring

In order to ensure the excellent quality and sealing performance of the sealing ring, five aspects should be paid attention to in the process of purchasing and applying the sealing ring: the production, storage, material details, installation and application of the seal. The manufacturer recommends that in order to prevent waste of high-q

June 18, 2022

Fluorine rubber O-ring selection matters

Fluorine rubber O-ring is a commonly used seal. In the process of design and selection, there are three most important matters: 1.Groove Size: The O-ring is installed in the groove. In order to achieve the best sealing effect, we should set an initial preload. Static and dynamic seals should be considered during groove design. The cross-sectional size of the fluorine rubber O-ring is proportional to the heigh

June 17, 2022

What you need to know about the production of pan-plug seals?

Pan plug seals are specially developed seals for the application environment of high temperature corrosion, difficult lubrication and low friction. With the combination of different Teflon composite engineering plastics and corrosion-resistant metal springs, the production of pan-plug seals can fully meet the increasingly stringent and diverse needs of the industry. Typical applications are as follows: 1. Axial seals for r

June 17, 2022

The main production materials of pan plug seals

Teflon (PTFE) is a sealing material with better chemical resistance than perfluoroelastomer and good heat resistance. It can be used in most chemical fluids, solvents, as well as hydraulic oil and lubricating oil. Its swelling is very small, so it can exert its sealing performance for a long time. Various special springs are used to overcome the elasticity problem of Teflon or other high-performance rubber and plastics, and most of the

June 16, 2022

Preservation methods of pan-plug seals in various environments

Under the influence of various external environmental factors, such as: distortion, oxygen, ozone, light, heat, moisture, oil, or chemical solvents, the O-ring may fail due to changes in its physical and chemical properties.. The storage, cleaning and maintenance of rubber seals are basically stipulated in DIN7716, ISO2230, DIN9088 and other standards.

June 16, 2022

The importance of seals to different industries

Although rubber and plastic seals are small, their role makes them become the basic components and accessories in the main industries of the national economy such as national defense, chemical industry, petroleum, coal, transportation and machinery manufacturing, and occupies a very important position in the development of the national economy.