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blowhole |
Also found in: Medical, Wikipedia, Hutchinson | 0.03 sec. |
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blowhole 1. the nostril, paired or single, of whales, situated far back on the skull 2. a hole in ice through which whales, seals, etc., breathe 3. a bubble-like defect in an ingot resulting from gas being trapped during solidification 4. Geology a hole in a cliff top leading to a sea cave through which air is forced by the action of the sea blowhole [′blō‚hōl] (geology) A longitudinal tunnel opening in a sea cliff, on the upland side away from shore; columns of sea spray are thrown up through the opening, usually during storms. (metallurgy) A pocket of air or gas formed in a metal during solidification. (vertebrate zoology) The nostril on top of the head of cetacean mammals. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The blow hole phenomena is far more prevalent in leadfree processing than in tin-lead. Slag inclusions, blow hole defects and eroded molding media and refractory material are all inclusions that can be minimized through the use of filters. The system also detects bridging or wettability solder faults, excessive or insufficient solder, blow holes and solder balls. |
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