초록 ▼

The invention relates to an apparatus and a process for producing moldings from expandable plastic particles, it being favorable for already pre-expanded plastic particles to be used. The invention is intended to propose possible ways of reducing the energy and water consumption. According to the in

The invention relates to an apparatus and a process for producing moldings from expandable plastic particles, it being favorable for already pre-expanded plastic particles to be used. The invention is intended to propose possible ways of reducing the energy and water consumption. According to the invention, for this purpose the inside walling of a steam chamber is provided with a thermal insulation or a corresponding heat-insulating material is used as the chamber walling and, furthermore, ultrafine spraying heads are arranged on the rear-wall plates for cooling the mold and molding. The ultrafine spraying heads may also be led into the steam chamber through steam-chamber frames.

대표청구항 ▼

1. An apparatus for producing moldings from expandable plastic particles comprising:a mold formed by least two parts, wherein the mold comprises rear walls; a steam chamber, into which steam can be introduced for expanding and fusing the plastic particles, wherein the mold is accommodated in the ste

1. An apparatus for producing moldings from expandable plastic particles comprising:a mold formed by least two parts, wherein the mold comprises rear walls; a steam chamber, into which steam can be introduced for expanding and fusing the plastic particles, wherein the mold is accommodated in the steam chamber; means of heating at least the molds and means for providing cooling water for reducing the foaming pressure and stabilizing the plastic molding obtained by expanding and fusing; ultrafine spraying heads comprising bores with a diameter <1 mm and additional swirling elements which are arranged in the steam chamber in such a way that the rear walls of the mold can be finely sprayed on all sides, water can be fed to the ultrafine spraying heads at a predeterminable pressure by means of a pump, water can be respectively assigned at least to one ultrafine spraying head, and valves are arranged in feed lines.