| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention relates to sheet material with orange peel coat that features good machinability and high Mohs' hardness. Proposed sheet coated material is characterised by the curve of filtered axial waviness (Wca) describing film outer surface in the range 0.35 mcm ëñ Wca ëñ 1.25 mcm and by mean distance between local peaks on the curve of filtered waviness (Wc-sm) in the range 2800 mcm ëñ Wc-sm ëñ 12500 mcm. Said sheet material features also an interface between film outer surface and its lower layer that has wavy structure. Preferably, proposed sheet material should satisfy the following conditions: waviness curve W revealed in analysis of interface between coat cross section outer layer and its lower layer comprises large waves in the range A ëñ 0.8 B, where A if the distance between coat outer surface S and the boundary of curvilinear waviness W, B makes mean thickness of outer layer film defined by mean distance between large waves that does not exceed 750 mcm. ^ EFFECT: higher efficiency, expanded applications, lower costs. ^ 17 cl, 4 dwg |
