Patent CH-699734-B1 (CH)
Title: Method for producing objects, comprises drawing original form of the object in the section of millimeter paper and drawing hard foam plate, where the thickness of the plate depends on the size of the object
Inventor: URBANOVSKY JOZEF
IPC: B28B1/30
Filed: 2006-05-12
Abstract: The method for producing objects, where a negative form of any object made from plastic is produced by a stencil (1a) that serves to reach a positive form of the object with four layers to be applied from a special cement mixture and the negative form is removed from the positive form, comprises drawing the original form in the section of millimeter paper, drawing hard foam plate (1), where the thickness of the plate depends on the size of the object, cutting each single hard foam plate according to the size of the plan, gluing the hard foam plates to each other. The method for producing objects, where a negative form of any object made from plastic is produced by a stencil (1a) that serves to reach a positive form of the object with four layers to be applied from a special cement mixture and the negative form is removed from the positive form, comprises drawing the original form in the section of millimeter paper, drawing hard foam plate (1), where the thickness of the plate depends on the size of the object, cutting each single hard foam plate according to the size of the plan, gluing the hard foam plates to each other to a piece of cake-shaped hard foam stencils, applying a cement coating on the rear wall of the stencil so that a cement negative form exists, applying a fluid flexible plastic heated at 200[deg] C in cement form, cooling the plastic to form a plastic form, mounting a plastic edge on both sides of the plastic form through the application of plastic heated at 200[deg] C and allowing to cool for 10 minutes, pouring same single plastic form to reach the entire plastic form and/or the end form of the body, rowing the plastic forms to be obtained with clamps to the entire plastic form of the body to be produced, applying first cement layer from the special cement mixture of cement, smashed stones with grain size of 0-1 and 1-2 mm and water on the plastic form, hardening the first layer for 1-3 hours, applying a second cement layer from the same special mixture, where a prefabricated wire skeleton puts over and presses over the form after the application of the second cement layer and before hardening process so that the second coating combines with the wire skeleton during hardening and the form assumes the prefabricated plastic form, hardening the second layer for 1-3 hours, applying third cement layer from the same special mixture, hardening the third layer for 1-3 hours, applying a fourth cement layer rubbed to a special structure, with a special mixture of cement and smashed stones with a grain size of 4-8 mm and water, hardening the entire blank for 3 days, taking out the single, flexible plastic form parts, grinding the fourth layer by diamond grinding tool and cleaning by water high-pressure cleaners, applying a mixture of cement, pigments and stone exposure of 0-1 mm in order to distribute a color of the object, renewed grinding and cleaning by the water high pressure cleaner after further days of the hardening, completely drying the ground and cleaned object for 2-5 days, and treating the ground and cleaned surface of the object with a suitable means for stone care. For trimming the surface structure of pre-fabricated motifs, the second cement layer is superimposed and clenched after the application of the second cement layer and before hardening over the pre-fabricated motifs.