| 摘要 |
PURPOSE: A top board of carbon composite material laboratory table is provided to improve durability, fire retardant characteristic, chemical resistance, abrasion resistance and lightness. CONSTITUTION: A top board of carbon composite material laboratory table comprises: a third press layer(310) surrounding an inorganic mixture layer(320); a carbon pad(220) surrounding the left, right and lower surface of a center part; a second carbon extrusion layer(210) surrounding the left, right and lower surface of the carbon pad; a first carbon surface-hardening layer(110) surrounding the left, right and lower surface of the second carbon extrusion layer; a fourth carbon finishing layer(410) connecting the center part, the carbon pad, the upper part of the second carbon extrusion layer, and the end of the first carbon surface-hardening layer; a fifth carbon chip-finishing layer(510) is formed on the upper part of the fourth carbon finishing layer and first carbon surface-hardening layer.
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