| 摘要 |
PURPOSE: A holding door panel having end grain is provided to improve strength and make a surface smooth by mixing wood flour of proper amount. CONSTITUTION: The manufacturing method of a holding door panel having end grain comprises the steps of mixing wood flour and hard polyvinyl chloride in a ratio of 30±5 to 70±5, then shaping in particulate substance by extruding, mixing the particulate substance, hard polyvinyl chloride and stabilizer, shaping primarily at 160¯180 deg.C and shaping secondarily at 150¯170 deg.C after 10 minutes.
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