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capillary action |
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capillary action, the process involving molecular adhesion by which the surface of a liquid in a tube is either elevated or depressed, depending on the cohesiveness of the liquid molecules. The more cohesive the molecules, the more depressed will be the surface of the liquid. Less cohesive liquid molecules will adhere to the surfaces of the tube in which they are contained and elevate the surface of the liquid. Also called capillary attraction, capillarity. 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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Small capillary gaps have a strong tendency to hold the solder because the capillary force in these cases is strong. With Cerdak, the exudate is permanently locked into the ceramic by a strong capillary force, ensuring a uni-directional flow of exudate. The flux must be sprayed on the board and flow into the barrels by its capillary force. |
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