| 摘要 |
<p>Process for making extrusions for the creation of multi-property composite tiles having: 1) a phase of accurate dry mixing of the following materials: A) magnesium oxide varying form 40 % to 70 % B) silica, or quartz sand, varying from 10 % to 40 % C) calcium carbonate, in the form of powdered marble, varying form 5 % to 30 % D) sawdust, varying form 3 % to 30 % E) cellulose fibre, varying from 3 % to 10 % F) glass fibres, in a percentage ranging from 1 % to 5 %; G) talc, varying 1 % to 5 % H) pigments, varying 2 % to 5% II) a subsequent phase of complete mixing with a watery solution of magnesium chloride and magnesium sulphate. III) an extrusion phase at a determined speed IV) a cyclic cutting phase during which the extrusion is cut.</p> |
