FFKM O-Ring
O型圈ORing
澳门新葡京8234 非标件Other parts
新葡京赌城网址 油启 Oil Seal
胶条&胶球 Cord&Ball
光滑件lubrications
新葡京赌城网址
组合垫圈Bonded Seal
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新葡京2711手机版 轴封 Mechanical seal
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澳门新葡京8234

地点(ADD)上海市奉贤区奉城工业园

minchang road,fengxian,shanghai,china
邮编(Postal Code):201411
Tel:+86-21-37588159

Fax:+86-21-37588091
Website:www.runlion-china.com
E-mail:[email protected]

润狮产物

产品名称:杜邦氟胶O型圈Dupont Viton ORing
产物 编号:RL20130201DUVITONORING00251
产品规格:
产品类别:O型圈ORing
放大检察:
产物阐明:
 

FKM/FPM

卓异的耐热性、耐候性、耐臭氧性、耐氧性和耐氧化剂性。极低的透气性。-澳门新葡京8234RUNLION  FKM (FPM) 密封件质料包孕 共聚物, 三元共聚物  四元共聚物品级和单酚取过氧化物加工体系。

FKM 弹性体是几乎不露配料的高度氟化聚合物。高温下极为稳固(运用时也许能蒙受 200°C / 400°F)相比较,传统弹性体正在氛围中该温度下的 24 小时以内更懦弱。一般情况下,FKM 硫化产物具有凸起的耐氧性、耐臭氧性、耐天气性、耐火焰性和耐氧化物化学品,和正在种种介质中卓着的抗收缩性。但它们取极性溶剂(如 M.E.K.)、局部有机酸(如甲酸)、局部基于甲醇和酯的液压液(如 Skydrol)、氨和局部胺不兼容。它们合适高达约 106 Rad -澳门新葡京投注网的高能量辐射情况。热水和蒸汽运用中能够需求 FKM 的特别品级。

若是配有单酚加工体系,FKM 弹性体则具有较下的耐压缩变形性。一样平常可用于 –30°C 以下,但专业品级(如 Endura® V91A)可供应 –45°C 以下的有用密封。电绝缘属性不是稀奇凸起,但足以用于耐高温、耐臭氧、耐化学性和不易燃的护套运用(比方轴封、O -新葡京赌城网址型圈和垫圈、膜片和电缆护套)。 

范例

FLUORINE CONTENT

长处/瑕玷

共聚物

65% - 65.5%

包罗两个单体(构建聚合物中的简朴单体)。 
密封运用中最通用常见、普遍运用的产物。最好的紧缩变形性和优越的抗液体性(紧缩变形对 O 型圈极为主要)。 
一般被称为 "A" "E" 型品级。
这些一般为最自制范例的化合物。

三元共聚物

67%

包罗三个单体。 
比共聚物具有更好的抗流体性和抗油/溶剂性,但耐压缩变形性较弱。-新葡京2711手机版
一般被称为 "B" 型品级。

四元共聚物

67% - 69%

包罗四个单体。
比其他范例更优越的抗流体、酸、溶剂性。比三元共聚物更好的耐压缩变形性。
偶然被称为 "G" 品级。 
另外,局部四元共聚物具有优越的高温灵活性。 
四元共聚物是以上所述三品种型中最高贵的范例。-2778.com

 

 

 

    

FKM/FPM

Outstanding resistance to heat, weather, ozone, oxygen and oxidisers. Very low gas permeability. PPE FKM (FPM) seal materials include, terpolymer and tetrapolymer grades and bisphenol and peroxide cure systems.

FKM elastomers are highly fluorinated polymers containing few compounding ingredients. They are stable at very high temperatures (they can withstand 200°C / 400°F indefinitely, in service). By comparison, conventional elastomers would become brittle in 24 hours at this temperature, in air. FKM vulcanisates, in general, have outstanding resistance to oxygen, ozone, weather, flame and oxidative chemicals, and excellent resistance to swelling in a wide variety of media. However, they are not compatible with polar solvents (e.g. M.E.K.), some organic acids (e.g. Formic acid), certain methanol and ester based hydraulic fluids (e.g. Skydrol), ammonia and some amines. They are suitable in high-energy radiation environments up to about 106 Rads. Special grades of FKM may be required for use in hot water and steam applications.

FKM elastomers provide high compression set resistance if compounded with bisphenol cure systems. Generally they are serviceable down to 30°C, but specialist grades (such as Endura® V91A) can provide effective sealing down to 45°C. Electrical insulation properties are not particularly outstanding, but would be adequate for sheathing where elevated temperatures, ozone, chemical and flame resistance are required (e.g. shaft seals, O-rings and gaskets, diaphragms and cable sheathing).

 

TYPE

FLUORINE CONTENT

ADVANTAGES/DISADVANTAGES


Copolymer

65% - 65.5%

Contains two monomers (simple molecules from which polymers are built).
General purpose, most common, most widely used for sealing. Best compression set and very good fluid resistance (compression set is very important for O-rings).
Often referred to as 'A' and 'E' type grades.
These are normally the least expensive types of compound.


Terpolymer

67%

Contains three monomers.
Better fluid and oil/solvent resistance than copolymer but at the expense of poorer compression set resistance.
Often referred to as 'B' types grades.


Tetrapolymer

67% - 69%

Contains four monomers.
Improved fluid, acid, solvent resistance over other types. Compression set better than terpolymers.
These are sometimes known as 'G' grades.
In addition, certain tetrapolymers have good low-temperature flexibility.
Tetrapolymers are the most expensive of the three types listed here.

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