Design Rings
Here are Todays Awesome Design Rings Deals
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 PRONG SET NAVAL BELLY RING W CLEAR GEM FAIRY DANGLE $9.99 Time Remaining: 42m Bid now | Add to watch list |
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 Pair 316L Steel Star Plug Ear Tunnel Plugs 00G Gauge $6.80 Time Remaining: 32m Buy It Now for only: $8.80 Buy It Now | Bid now | Add to watch list |
 Solid 14K Gold CZ Star Nose Screw Nostril Ring CLR GEM $14.01 Time Remaining: 9d 2h 13m Buy It Now for only: $14.01 Buy It Now | Add to watch list |
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 PAIR Natural Buffalo Bone Wave Organic Ear Taper 10g 2g $8.39 Time Remaining: 10d 1h 28m Buy It Now for only: $8.39 Buy It Now | Add to watch list |
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 PINK GEM IRIDESCENT SILVER BUTTERFLY NAVAL BELLY RING $9.99 Time Remaining: 48m Bid now | Add to watch list |
 TONGUE RING FLEXIBLE BIOFLEX PLASTIC VARIOUS COLORS 14G $1.90 Time Remaining: 16d 4h 23m Buy It Now for only: $1.90 Buy It Now | Add to watch list |
 316L TWIST W PRONG SET RED HEART BELLY NAVAL RING $9.99 Time Remaining: 1h Bid now | Add to watch list |
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 HELLO KITTY PIRATE PATCH CAT Navel Belly Button Ring BODY JEWELRY Piercing 7HP3 $3.50 (1 Bid) Time Remaining: 1h 4m Bid now | Add to watch list |
 60 Multicolor Crystal Rhinestone Nose Lip Studs Rings Bar Body Piercing Surgical $4.49 Time Remaining: 25d 7h 13m Buy It Now for only: $4.49 Buy It Now | Add to watch list |
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 Surgical Stainless Steel Large Dangling CZ Heart Navel Ring Pink or Clear $6.99 Time Remaining: 10d 3h 31m Buy It Now for only: $6.99 Buy It Now | Add to watch list |
 10K Real Gold CZ Heart Belly Button Navel Ring Body Art $49.40 Time Remaining: 6h 46m Bid now | Add to watch list |
 GREEN OPEN HEART DANGLE OKTANT SWAROVSKI BELLY RING $9.99 Time Remaining: 1h 16m Bid now | Add to watch list |
 V091 Fake Cheaters Illusion Plugs 4G 2G 0G 00G 7 16 1 2 Black 5 6 8 10 11 12mm $6.95 Time Remaining: 13d 10h 8m Buy It Now for only: $6.95 Buy It Now | Add to watch list |
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 24pcs Stainless Steel Round Nose Stud Rings Body ring $5.05 Time Remaining: 15d 22h 30m Buy It Now for only: $5.05 Buy It Now | Add to watch list |
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 Tanzanite Flower Belly Button Ring Navel Naval B324 $6.98 Time Remaining: 46m Bid now | Add to watch list |
 BARREL RODEO BELLY NAVEL button RING $6.99 Time Remaining: 29d 4h 37m Buy It Now for only: $6.99 Buy It Now | Add to watch list |
 SILVER HOLLOW HEART W PINK CZ ACCENT BELLY NAVAL RING $9.99 Time Remaining: 54m Bid now | Add to watch list |
 PAIR HOLLOW Natural Sono Wood ORGANIC PLUGS Tunnels $7.99 Time Remaining: 22d 22h 13m Buy It Now for only: $7.99 Buy It Now | Add to watch list |
 SILVER HOLLOW HEART W CLEAR CZ ACCENT BELLY NAVAL RING $9.99 Time Remaining: 55m Bid now | Add to watch list |
 PINK FANCY HOLLOW HEART W BUTTERFLY BELLY NAVAL RING $9.99 Time Remaining: 57m Bid now | Add to watch list |
 12 Colors 1PC 14G Czech CZ Crystal Belly Navel Ring Stud Barbell Stainless Steel $5.99 Time Remaining: 8d 9h 51m Buy It Now for only: $5.99 Buy It Now | Add to watch list |
 316L Surgical Steel Navel Belly Button Ring Twist 7mm Round CZ 14 Gauge 14G $15.99 Time Remaining: 3d 6h 12m Bid now | Add to watch list |
 DETAILED Lotus Flower Buffalo Horn Organic Tunnel Plugs $9.35 Time Remaining: 9d 4h 48m Buy It Now for only: $9.35 Buy It Now | Add to watch list |
 SILVER PINK HEART CZ W FANCY HEART DANGLE BELLY RING $9.99 Time Remaining: 1h 15m Bid now | Add to watch list |
 FANCY SILVER HEART W CLEAR CZ ACCENT BELLY NAVAL RING $9.99 Time Remaining: 1h 1m Bid now | Add to watch list |
 V061 White Ear Stretchers Tapers Expanders 14 12 10 8 6 4 2 0 00 G Gauges n Kit $5.95 Time Remaining: 14d 11h 44m Buy It Now for only: $5.95 Buy It Now | Add to watch list |
 CLEAR FANCY HOLLOW HEART W BUTTERFLY BELLY NAVAL RING $9.99 Time Remaining: 1h 5m Bid now | Add to watch list |
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 GOLD TRIPLE HEART OPEN HEART CZ ACCENT BELLY RING $9.99 Time Remaining: 1h 6m Bid now | Add to watch list |
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More Great Information on Design Rings:
Design Considerations and Recommended Materials for O Rings Used in High Temperature Applications
O-rings are designed based on the applications in which they are used. There are typically two types of applications:
* Static applications, where the sealing faces are stationary, and
* Dynamic applications, where the sealing faces are in motion
Generally, static applications are more tolerant to the design limitations of the rings than the dynamic applications.
Apart from these two typical classifications, applications are also classified based on their operating temperature ranges. High temperature application is one such classification that requires O-rings to operate at temperatures in excess of 400 degrees F. While the compatibility between the O-rings and the fluid to be sealed is critical in designing an O ring, the operating temperature range is also important and particularly relevant to material selection. Other properties, such as hardness, tensile strength, groove depth, and permeation rates are factors that largely influence the design.
O-Ring Material Selection for High Temperature Applications:
O-ring materials chosen for high temperature applications are critically important. Some commonly used materials for making O-rings suited for high temperature applications include silicone and fluoroelastomers such as Viton(r). Apart from these materials, Kalrez(r) and Aflas(r) are other elastomers commonly used for making these O-rings. Each material has its own advantage and disadvantage as it reacts differently when exposed to different factors. The characteristics of these materials are discussed below.
Silicone Rubber:
Silicone rubber is a combination of silicone, oxygen, hydrogen, and carbon that is used to make O-rings for withstanding temperatures as high as 575 degrees F. Therefore, O-rings made of silicone rubber are widely adopted in automotive components and cookware. Another significant property of this material is its broad operating temperature range. However, O rings made of silicone rubber are found in some low temperature applications as well.
Fluoroelastomers (Viton(r)):
Viton(r) is yet another synthetic elastomer popular for its broad operating temperature ranges. Though the ideal operating temperature of O-rings made of this material ranges from -10 deg F to +400 deg F, the rings can withstand extremely high temperature of about 500 deg F for a short period. However, Viton(r) is not recommended for applications that demand exposure towards ketones, organic acids, hot water, and steam.
Aflas(r):
Aflas(r) is a proprietary fluoroelastomer that has also been adopted for high temperature O-ring applications. Based on an alternating copolymer of tetrafluoroethylene and propylene, these O-rings can withstand temperatures of up to 450 deg F in almost all media and even up to 500 deg F in steam applications. O-rings made from Aflas(r) also offer excellent resistance to oils, chemicals, as well as ozone.
Kalrez®:
Another proprietary elastomer commonly used in high temperature sealing applications is Kalrez(r). A type of fluoroelastomer that has excellent resistance to temperature, Kalrez(r), in some grades, can be used in continuous operating temperatures of up to 600 degrees F. In addition, this elastomer Kalrez(r) has excellent resistance to chemicals, oils, solvents, and acids.
Design Considerations for High Temperature Applications:
Though the most critical factor to be considered for a high temperature application is the material selection, the design of the gland and the way in which the O ring is mounted also plays a role. By making modifications to the gland design, O-rings can be used in a wide range of temperatures. Gland volume is increased to compensate the thermal expansion of the rings when designing for high temperature applications. For low temperature applications, the gland depth is reduced to obtain the required squeeze on the contracted O-ring. In addition, to compensate for the
Gough-Joule
effect, O-rings in high temperature applications are mounted in a tangentially compressed state. The
Gough-Joule
effect is essentially the inclination of elastomers to shrink if they are heated under tension, leading to seal failure in elastomeric O rings.
Hardness:
Another factor to be considered while selecting O-rings for high temperature applications is hardness. While O-rings designed with low durometer hardness can provide proper sealing at low temperature, high temperature applications may require O-rings with high durometer hardness. Generally, the Shore A durometer is used to measure the hardness of the rubber compounds.
If you need o-rings for your specific application, or simply more information, please check out a list of
o ring manufacturers
on Zycon.com.
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This entry was posted on Wednesday, September 29th, 2010 at 11:34 pm and is filed under Body Piercing. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.