The Most Common Reason For The Use Of Standard O Rings Damage Is Tearing

- Sep 13, 2017-

The most common reason for the use of Standard O Rings damage is tearing
Silicone Standard O Rings is one of the most widely used elastomers in recent years. Its greatest characteristic is good wear resistance, better than natural rubber, its strength and tear resistance, ozone resistance is also particularly excellent, but not resistant to ketones, acid, alkali, steam. The use of temperature range is generally -20 ~ 80 ℃. Usually used to do all kinds of wear-resistant products.
 Fluorine Standard O Rings is one of the special synthetic rubber elastomer material, the price is more expensive than any kind of rubber, its use temperature range -25-250 ℃. Usually used for high temperature, acid, petroleum base oil, aromatic hydrocarbons and other media rotating seal (oil seal) or O-ring rubber seal products.
Fluorine Standard O Rings market price is undoubtedly expensive and its own use of the material is a great relationship, high cost is the main reason for price increases, followed by the achievement of production technology is also a key factor affecting the price, and Junda of this technology has already reached the market requirements, worthy of choice.
 Fluorine Standard O Rings is one of the many seals, most of the seals used by the sealing material are basically high molecular elastomers, of course, the specific will be based on their own function, but also add some Of the material, including the ratio between the different is not the same, but no matter how the change, all the seals must be specific to the following performance:
1, with a certain mechanical and physical properties: such as tensile strength, tensile strength, elongation;
2, there is a certain degree of flexibility, hardness appropriate, and compression of permanent deformation is small;
 3, with the working medium to adapt, not easy to produce swelling, decomposition, hardening;
4, wear, have a certain tear resistance;
5, with high temperature, low temperature aging performance.
Of course, the above mentioned these requirements, not every one will have a very good, according to the different material ratio, the requirements of the degree of achievement will be how much difference, but ultimately for the production of the seal Seal effect to be comprehensive.
 Standard O Rings failure is most often seen in order to meet the application, the Standard O Rings is stretched during the assembly process. In this case, though, the Standard O Rings passed the initial leak test and was used for several weeks. For the damaged Standard O Rings it is impossible. Therefore, the Standard O Rings must be no damage during installation and initial pressure testing. This means that the Standard O Rings is certainly damaged during use, that is, when it is installed in the tank, this is a very rare case in a static Standard O Rings seal. Damage to this type of use can usually be traced back to one or two reasons.
The most common reason for the use of Standard O Rings damage is tearing, which is spread from the initial twist point. In this case, a part of the O-ring is crushed in the fitted metal part, usually when the groove is accidentally ejected during the installation. O-rings that are damaged in this manner will show signs of significant mechanical damage, including partial crushing, partial absence of O-rings, cuts in semicircular cross-section, and so on. In some cases, a tightened O-ring will pass through the initial leak test and is damaged during use, due to the initial shrinkage of the O-ring. However, there is no evidence of any shrinkage damage in these failed Standard O Rings.
Compatibility of Standard O Rings material with hydraulic oil: One of the sources of particulate contamination of hydraulic fluids is the "debris" or "debris" that does not correspond to the Standard O Rings material. The Standard O Rings is damaged and failed by the "debris" of the "debris" or "unbonded inorganic and filled reinforcing material" which is "damaged" by the " The formation of pollution caused by deterioration of hydraulic oil failure.

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