초록

A semi-finished product (24) composed of dry, loose covering layers (10,15) of reinforcing material and a debris material (9) of reaction resin (5) and elements (7) of variable form and volume as core (22) is used for the manufacture of moulded parts by hot pressing.

대표청구항 ▼

A process for the production of a post forming semi-finished product for manufacturing rigid molded parts in which a core is applied to a lower, continuously moving dry flexible covering layer having open recesses extending in the direction of the core, and in which the core is covered with a corres

A process for the production of a post forming semi-finished product for manufacturing rigid molded parts in which a core is applied to a lower, continuously moving dry flexible covering layer having open recesses extending in the direction of the core, and in which the core is covered with a corresponding upper dry flexible covering layer, the process comprising the steps of applying to the lower covering layer the core of tempered debris material of reaction resin and elements of compressible volume previously mixed together in proportions of from 1-10 to 1-100, applying the upper flexible covering layer to the core, producing a bond between the two covering layers, and allowing at least some of the open recesses in the covering layers to remain available for filling with reaction resin when the product is post formed, and the product being capable of being post formed by a combination of heat and compression of 1:2 to 1:20.