METHOD FOR MANUFACTURE OF PARTS FOR MEANS OF TRAVEL Russian patent published in 2009 - IPC D04H1/00 B29C45/56 B29C45/14 

FIELD: technological processes.

SUBSTANCE: invention is related to method for manufacture of at least partially plastic parts in means of travel in mold with at least one mold cavity. Method includes the following stages: mold is closed at least partially, at that at least one mold cavity is brought to the first position by means of at least one movable wall of at least one mold cavity. Then plastic is introduced in at least one mold cavity, after complete closure of mold and/or displacement, of at least one movable wall, at least one mold cavity is brought to the second position. At that at least one mold cavity in the second position has another volume compared to the first position, and then cavity is completely filled with plastic by means of at least one mold cavity installation from the first into the second position. At that mold is used, which has at least one mold cavity with at least one movable wall. At that control device is used for controlled displacement of wall between at least the first and second positions with the possibility to adjust wall displacement so that during use adiabatic release of heat takes place in plastic in mold cavity due to change of pressure in plastic and/or displacement. Part in means of travel may be manufactured by any method according to invention. Die mold for use in method according to invention has at least one cavity with movable wall, which is controlled for compression of plastic in mold cavity, when the mold is closed, as a result, adiabatic heat release takes place in plastic. Technical result is achieved during use of method and mold according to inventions.

EFFECT: reduction of pressure casting cycle duration, lowering of material consumption and reduction of undesirable stresses.

19 cl, 9 dwg