Tools and materials required:<\/span> a.<\/strong><\/span> Firmness examination Slide Wood<\/strong><\/span> b.<\/strong><\/span> Shopping Firmness parallel examination Fiber<\/strong><\/span> c.<\/strong><\/span> Examination Density<\/strong><\/span> Calculate the density of the wood by the formula:<\/span>
\n – Press machine<\/span>
\n – Iron hemispherical steel in the hollow area of \u200b\u200b1 cm2 (\u00d8 1.13 cm)<\/span>
\n – Ruler measuring<\/span>
\n – Wooden size of 5 x 5 x 15 cm<\/span>
\n Investigation Method:<\/span>
\n – Prepare a test piece with a size of 5 x 5 x 15 cm<\/span>
\n – Put the specimen on a machine press<\/span>
\n – Samples tean with steel ball \u00d8 1.13 cm to the ball as deep as \u00bd x diameter<\/span>
\n – Testing of violence committed against both field \/ end and fourth field side.<\/span>
\n – Calculate the load of the field testing of the figures obtained average hardness of the end of the radial and tangential.<\/span>
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\n<\/strong> Tools and materials required:<\/span>
\n – Press machines and equipment<\/span>
\n – Saws<\/span>
\n – Wooden size of 3 x 4 x 8 cm<\/span>
\n Investigation Method:<\/span>
\n – Prepare the test specimen as in the picture<\/span>
\n – Place the specimen on the brace sought not to objects slide field continuously with a speed of 0.6 mm \/ min<\/span>
\n – Record the timber when the load shifted<\/span>
\n – Calculate the firmness of sliding parallel to the wood fibers<\/span>
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\n<\/strong> Tools and materials used<\/span>
\n – Engine drag and perlengkpannya<\/span>
\n – Drill \u00d8 2,5 cm<\/span>
\n – Saws<\/span>
\n – Ruler measuring<\/span>
\n – Wood 4 x 5 x 9.5 cm<\/span>
\n Investigation Method:<\/span>
\n – Prepare a test object such as a picture<\/span>
\n – The specimens were put on a tensile machine<\/span>
\n – Run the tensile machine with a speed of 2.5 mm per minute<\/span>
\n – The result is flawed p kg if bend test split<\/span><\/p>\n
\n Tools and materials required:<\/span>
\n – Oven<\/span>
\n – Scales the nearest 0.1 gram<\/span>
\n – Saws<\/span>
\n – Gauge \/ meter<\/span>
\n – Wood with a size of 5 x 5 x 5 cm<\/span>
\n Investigation Method:<\/span>
\n – Prepare the specimen with ukuran5 x 5 x 5 cm<\/span>
\n – Determination of the density of the test specimen has kadarair 15% and dry air<\/span>
\n – The test specimen is weighed for example (a gram)<\/span>
\n – Volume is measured by immersion method<\/span>
\n \uf0b7 Fill water in a measuring cup (.xml)<\/span>
\n \uf0b7 The specimens were soaked first few minutes<\/span>
\n \uf0b7 Put the specimen into a measuring cup containing water<\/span>
\n \uf0b7 After the specimen into the measuring cup, the water will rise to (Y ml)<\/span>
\n \uf0b7 The volume of the test object can be searched is Y minus X ml ml<\/span><\/p>\n
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