Flame retardant rubber O ring O-ring seals manufacturer Kunshan imports
Flame retardant rubber O ring, is a flame retardant rubber material with special O ring, a self-made silicone rubber material, usually by the majority. Usually, people for the understanding of flame retardant rubber is in general combustion conditions, rubber does not burn it, in fact, this is a misunderstanding. Because there is no so-called general combustion conditions, polymer products can not be prevented in some form of combustion, the only way to change its combustion.
If the polymer is placed in a sufficiently long time, high enough temperature and enough oxygen to burn, then any fire prevention measures will be ineffective. So, when the fire burns up, the rubber is inevitable. Therefore, the so-called flame retardant refers to the rubber to delay the ignition time, reduce the flame propagation speed and the ability to quickly extinguish the fire after leaving the fire. In general, it uses the oxygen index to indicate that the higher the oxygen index, the better the flame retardant performance.
In general, halogen containing rubber and the main chain of the rubber (such as rubber, chlorinated polyethylene, silicone rubber, etc.) have excellent flame retardant properties.
We analyzed the main flame retardant rubber products, found using the rubber matrix products for the vast majority of chlorine containing polymers such as chlorosulfonated polyethylene rubber, chlorinated polyethylene rubber etc..
Two natural rubber, 1 kinds of flame retardants can be used, such as SbO325 and chlorinated paraffin 50 parts, can be flame retardant.
2 styrene butadiene rubber in terms of Sb2O315 and chlorinated paraffin 30 or Sb2O3 5, chlorinated paraffin 20, Al (OH) 325, can be flame retardant.
3 neoprene for chlorine (40%) with self extinguishing, but the addition of inorganic filler, such as Al (OH) 3, clay and calcium carbonate can improve the flame retardancy
4 the Sb2O315 of ethylene propylene rubber and chlorinated paraffin 30 and decreased, tensile strength of vulcanized rubber; phosphorus compounds added in polyethylene and polypropylene, can be self extinguishing. Our production of O-ring specifications are as follows:
Type O sealing ring O ring (O-rings) is a kind of circular cross section of the rubber sealing ring, because of its cross section is O, so it is also called the O ring, O ring. Began to appear in the middle of the nineteenth Century, when used as a steam engine cylinder sealing element.
O type ring O ring types are mainly UHSO type ring, UHPO ring specifications, UNO ring specifications, DHO type ring, piston rod type O ring, O ring high temperature, high pressure corrosion O ring, O ring, O ring wear. O type circle Application Introduction: hole with O type YX ring product uses: for reciprocating movement of the piston in the hydraulic cylinder seal. Scope of application: TPU: general hydraulic cylinder, general equipment hydraulic cylinder. CPU: hydraulic cylinder and high temperature, high pressure cylinder used for construction machinery. Material: polyurethane TPU, CPU, rubber. Hardness: HS85 + 2 ~ A working temperature: 40 ~ TPU:- +80 C +120 C ~ CPU:-40 working pressure: 32Mpa working medium: hydraulic oil. YX type hole with block O type ring product uses: this standard applies to the cylinder working pressure is greater than 16MPa when combined with the YX type sealing ring use, or when the cylinder eccentric force, the role of the protection of the sealing ring. Working temperature: -40 ~ +100 degree. Working medium: hydraulic oil, emulsion, water hardness: HS 92 + 5A material: ptfe. Shaft with O type YX ring product uses: for reciprocating motion hydraulic cylinder piston rod sealing application range: TPU: general hydraulic cylinder, general equipment hydraulic cylinder. CPU: hydraulic cylinder and high temperature, high pressure cylinder used for construction machinery. Material: TPU, CPU, polyurethane rubber product hardness: HS85 + 2 ~ A working temperature: +120 degrees TPU:- working pressure 40 ~ +80 ~ CPU:-40: C = 32Mpa, working medium: hydraulic oil. O type ring sealing performance is good, working life is high, dynamic pressure sealing work life than conventional rubber sealing products 5 - 10 times, up to several tens of times, under certain conditions can be sealed with the same life matrix. O type circle friction resistance is small, dynamic and static friction is equal, is "0" rubber ring friction 1/4 - 1/2, can eliminate the low speed, low pressure movement of "crawling" phenomenon. O type high wear resistance, sealing surface wear with automatic elastic compensation function. Good self lubrication performance of O type ring can be used as a non oil lubrication seal. O type ring structure is simple, easy to install. Ring type O working pressure: 0-300MPa; working speed: 15m/s; working temperature: -55-250 degrees. O type of circle applicable medium: hydraulic oil, gas, water, mud, crude oil, emulsion, water - ethylene glycol, acid.
Scope of application of 2.O type circle
The O type sealing ring is suitable for the installation on various mechanical devices, in the specified temperature, pressure, and different liquid and gas media, in a static or moving state of the seal. In machine tools, automobiles, ships, aerospace equipment, metallurgical machinery, chemical machinery, engineering machinery, construction machinery, mining machinery, petroleum machinery, plastic machinery, agricultural machinery, and all kinds of instruments and meters, a large number of applications of various types of the sealing element. The O type sealing ring is mainly used for the static seal and the reciprocating motion seal. When used for rotary motion, it is limited to the low speed rotary sealing device. The O type sealing ring is generally installed in the outer circle or the inner circle and the upper section of the inner circle is provided with a sealing effect in the groove of the rectangle. O type sealing ring in the oil, acid and alkali, grinding, chemical erosion and other environment is still playing a good seal, shock absorption. Therefore, the O type sealing ring is the most widely used in the hydraulic and pneumatic transmission system.
Advantages of 3.O type circle
Type O sealing ring compared with other type of sealing ring, has the following advantages: suitable for a variety of sealing form: static seal, dynamic seal materials for various purposes, the size and the groove has been standardized, strong interchangeability, suitable for a variety of sports:Rotary motion and axial reciprocating motion or motion (such as rotary reciprocating motion combination) -- suitable for a variety of sealing medium: oil, water, gas, or other chemical substances mixed medium by selecting appropriate rubber material and formula design appropriate, for oil, water, air, gas and chemical medium effective seal effect. Wide temperature range (- 60 C + 220 C), the use of a fixed pressure up to 1500Kg/cm2 (with the reinforcement ring and). -- simple design, compact structure, convenient assembly and disassembly of O - shaped ring section of the structure is extremely simple, and there is a self sealing effect, reliable sealing performance. As the O ring itself and the installation of parts of the structure is extremely simple, and has been standardized, so it is very easy to install and replace. Variety: materials can be selected according to different fluid: Dengqen rubber (NBR) and fluorine rubber (FKM), silicone rubber (VMQ) and ethylene propylene rubber (EPDM) and chloroprene rubber (CR), butyl rubber (BU), polytetrafluoroethylene (PTFE), natural rubber (NR) - etc. the low - friction resistance is relatively small
To map processing a variety of non-standard seals, welcome to call to discuss our sincere hope that your visit, the actual price consultation we are accurate
Sales Hotline: +86-0512-36826955 18068085052 Mr. Yi customer service QQ:1249436563
Sales Hotline: +86-0512-36826956 18068095051 manager customer service QQ:113562319