| Тест твёрдости Янка |  |
Тест твёрдости Янка используется для оценки твёрдости древесины. Выражается в силе в фунтах, которую нужно приложить к металлическому шарику диаметром 0,444 дюйма, чтобы вдавить его в древесину на половину диаметра. Википедия
The Janka scale is used to determine the relative hardness of particular domestic or exotic wood species. The Janka test measures the amount of force ... |
The Janka Test is a measure of the hardness of wood. The Janka Test was developed as a variation of the Brinell hardness test. The test measures the force ... |
The Janka hardness test measures the resistance of a sample of wood to denting and wear. It measures the force required to embed an 11.28 millimeters (0.444 in) ... |
The Janka test measures the force (LBF) required to embed the .444″ ball halfway into the wood. So that would be a distance of .222″, or 5.64 mm. |
18 июл. 2022 г. · The Janka scale measures the resistance of a sample of wood to denting and wear and is typically expressed in lbf (pounds-force) or N (Newtons). |
18 февр. 2015 г. · The Janka Hardness Scale is determined by a controlled test. The scale aids hardwood and plank flooring shoppers determine the best wood ... |
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