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Trelleborg opens new combined manufacturing site
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AURORA, Ohio—Trelleborg Sealing Profiles U.S. Inc. welcomed visitors to a grand opening of its new 156,250-sq.-ft. manufacturing facility in Aurora. The new site brings three manufacturing...
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AURORA, Ohio—Trelleborg Sealing Profiles U.S. welcomed visitors to a grand opening of its new 156,250-sq.-ft. manufacturing facility in Aurora. AURORA, Ohio—Trelleborg Sealing Profiles U.S. welcomed visitors to a grand opening of its new 156,250-sq.-ft. manufacturing facility in Aurora. $AURORA, Ohio—Trelleborg Sealing Profiles U.S. welcomed visitors to a grand opening of its new 156,250-sq.-ft. manufacturing facility in Aurora.
Pirelli sees demand for noise canceling tire system
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NEW YORK—As cars have gotten quieter, calls for Pirelli C. & S.p.A.'s noise canceling tire system have gotten louder.The Pirelli Noise Canceling System, meant to reduce noise between...
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NEW YORK—As cars have gotten quieter, calls for Pirelli's noise canceling tire system have gotten louder. NEW YORK—As cars have gotten quieter, calls for Pirelli's noise canceling tire system have gotten louder. $NEW YORK—As cars have gotten quieter, calls for Pirelli's noise canceling tire system have gotten louder.
Giti planning to reinvigorate GT Radial brand in North America
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RICHBURG, S.C.—As the new kid in the North American manufacturing neighborhood, Giti Tire Manufacturing (USA) Ltd. has ambitious plans to make its mark in the regional tire market. Since...
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RICHBURG, S.C.—As the new kid in the North American manufacturing neighborhood, Giti Tire Manufacturing (USA) Ltd. has ambitious plans to make its mark in the regional tire market. RICHBURG, S.C.—As the new kid in the North American manufacturing neighborhood, Giti Tire Manufacturing (USA) Ltd. has ambitious plans to make its mark in the regional tire market. $RICHBURG, S.C.—As the new kid in the North American manufacturing neighborhood, Giti Tire Manufacturing (USA) Ltd. has ambitious plans to make its mark in the regional tire market.
Dana becomes lead investor in Hyliion
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MAUMEE, Ohio—Dana Inc., like many automotive suppliers, is being proactive about the change it sees on the horizon. Electrification is driving the automotive suppliers to partner with new...
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MAUMEE, Ohio—Dana Inc., like many automotive suppliers, is being proactive about the change it sees on the horizon. MAUMEE, Ohio—Dana Inc., like many automotive suppliers, is being proactive about the change it sees on the horizon. $MAUMEE, Ohio—Dana Inc., like many automotive suppliers, is being proactive about the change it sees on the horizon.
Will import duties cause shortage of TBR tires?
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AKRON—Will the newly imposed countervailing and antidumping import duty orders on truck and bus tires from China lead to shortages of tires and/or rising prices? That scenario seems to be...
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AKRON—Will the newly imposed countervailing and antidumping import duty orders on truck and bus tires from China lead to shortages of tires and/or rising prices? AKRON—Will the newly imposed countervailing and antidumping import duty orders on truck and bus tires from China lead to shortages of tires and/or rising prices? $AKRON—Will the newly imposed countervailing and antidumping import duty orders on truck and bus tires from China lead to shortages of tires and/or rising prices?
Manufacturing 4.0 brings opportunities, challenges for automotive suppliers
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NOVI, Mich.—As manufacturers move toward a more automated future, there are plenty of questions to work through, and a plethora of opportunities for those that can. Automation, machine...
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NOVI, Mich.—As manufacturers move toward a more automated future, there are plenty of questions to work through, and a plethora of opportunities for those that can. NOVI, Mich.—As manufacturers move toward a more automated future, there are plenty of questions to work through, and a plethora of opportunities for those that can. $ NOVI, Mich.—As manufacturers move toward a more automated future, there are plenty of questions to work through, and a plethora of opportunities for those that can.
Bridgestone wins design intellectual property case in China
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TOKYO—Bridgestone Corp. is claiming a win in a 3-year-old design-rights infringement lawsuit against Chinese tire maker Shengtai Group. The lawsuit claimed that Shengtai Group used a truck...
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TOKYO—Bridgestone is claiming a win in a 3-year-old design-rights infringement lawsuit against Chinese tire maker Shengtai Group. TOKYO—Bridgestone is claiming a win in a 3-year-old design-rights infringement lawsuit against Chinese tire maker Shengtai Group. $TOKYO—Bridgestone is claiming a win in a 3-year-old design-rights infringement lawsuit against Chinese tire maker Shengtai Group.
Evenflo Feeding creates strategic partnership with GoSili
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WEST CHESTER, Ohio—Evenflo Feeding Inc., an infant and juvenile feeding products brand, and GoSili Inc., a manufacturer of sustainable silicone tablewear, have entered into an equity...
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WEST CHESTER, Ohio—Evenflo Feeding, an infant and juvenile feeding products brand, and GoSili, a manufacturer of sustainable silicone tablewear, have entered into an equity agreement. WEST CHESTER, Ohio—Evenflo Feeding, an infant and juvenile feeding products brand, and GoSili, a manufacturer of sustainable silicone tablewear, have entered into an equity agreement. $WEST CHESTER, Ohio—Evenflo Feeding, an infant and juvenile feeding products brand, and GoSili, a manufacturer of sustainable silicone tablewear, have entered into an equity agreement.
Steelastic completes puzzle with new system
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HANOVER, Germany—Machinery maker Steelastic Co. L.L.C. has been a bit cryptic in its marketing efforts in recent weeks. The Cuyahoga Falls, Ohio-based producer of equipment used in tire...
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HANOVER, Germany—Machinery maker Steelastic has been a bit cryptic in its marketing efforts in recent weeks. HANOVER, Germany—Machinery maker Steelastic has been a bit cryptic in its marketing efforts in recent weeks. $HANOVER, Germany—Machinery maker Steelastic has been a bit cryptic in its marketing efforts in recent weeks.
Photos: Students dive into science, math careers at Goodyear STEM Career Day event
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AKRON—Sometimes, lesson plans burst into flame and go up in smoke. But that's a good thing. At least, it was on April 6, when Goodyear and the University of Akron partnered to present the...
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AKRON—Sometimes, lesson plans burst into flame and go up in smoke. But that's a good thing. At least, it was on April 6, when Goodyear and the University of Akron partnered to present the 20th annual STEM Career Day. AKRON—Sometimes, lesson plans burst into flame and go up in smoke. But that's a good thing. At least, it was on April 6, when Goodyear and the University of Akron partnered to present the 20th annual STEM Career Day. $AKRON—Sometimes, lesson plans burst into flame and go up in smoke. But that's a good thing. At least, it was on April 6, when Goodyear and the University of Akron partnered to present the 20th annual STEM Career Day.
Digital Edition
Digital Edition
Published on March 25, 2013

Detecting and measuring hot blisters in tires

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Date Published March 25, 2013
Category Technical Papers

Dennis Reynolds, Starrett-Bytewise Division of L.S. Starrett Co.

A hot blister is a bulge in the surface of a cured tire caused by entrapped gasses or steam. Such blisters can be observed in the hot tires when they exit curing. Blisters often shrink as the gases migrate outward or are absorbed into the tire materials. There is concern, however, that the entrapped steam and gases present during curing can weaken the laminate structure of the tire. Air entrapment has been observed frequently by the author during capability studies conducted on tire-building machines. This paper presents cases showing entrapped air between the inner liner and body ply in a typical green tire carcass construction. Such air pockets can remain between the layers and migrate outward during tire curing to produce blisters. Air can also be absorbed into the tire structure. Steam and gases also can be introduced into the tire structure during curing and emerge as blisters after curing. This paper presents a method to detect blisters after curing and to detect entrapped air pockets during the tire-building stage. Scans of both cases are presented. These cases demonstrate that automatic monitoring systems can be implemented to detect these conditions. The method uses high-speed line laser sensors to digitize the sidewall and/or tread of the un-inflated tire. The data set is rendered as a 3D model. The data is post-processed and searched for blisters. This same sensor technology is employed to scan tire sidewalls for bulges and depressions.

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Technical Paper, Detecting and Measuring Hot Blisters in Tires
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