| 摘要 |
The vacuum chamber is used in the welding industry for preparing vacuumed forms for plastic and metallic models, and core boxes. It is universal, because it is not necessary to commission it with distribution pipes. The vacuum chamber is divided horizontally into two independent sections : a top /7/ and a bottom /8/, by an interim plate /9/, statically fitted to a frame /3/. The top section is connected externally with a branch-out /10/ to a pipe union /5/, while the bottom section is supplied with a group of pipe unions /12/. The frame /3/ is made of profiles, while its bottom side holds a bottom /4/, which is composite and replaceable. To the top part of the frame are compactly fitted a model plate /1/ of a gas-promiscuous material and a perforated plate /2/ placed below it. Between the perforated plate and the bottom are supports /6/, regulable only in their top section /7/.
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