摘要:
Method for producing extruded structural profiles from aluminum or aluminum alloy scrap materials. The scrap materials are compacted under room temperature or under heat suitable for hot extrusion into a cylindrical body which is of such a dimension that is suitable for insertion into an extruder. The compacted body has an average density which is 70 to 86 percent of that of aluminum, and includes longitudinal air passages. Suction pressure is applied to the interior of the extruder during extruding process for removing air entrapped in the body, which may otherwise cause voids in the extruded products.
摘要:
Aluminum or aluminum alloy scraps or wastes are broken into chips and extruded under a high temperature to produce extruded structural profiles. The method is characterized by the fact that the interior of the extruder is evacuated prior to or simultaneously with the extrusion step so as to exhaust air entrapped in the body of the chips. There is also disclosed apparatus suitable for performing the method.
摘要:
Aluminum or aluminum alloy scraps or wastes are broken into chips and converted into a cylindrical body to be extruded under a temperature suitable to produce extruded structural profiles. The method is characterized by the fact that the interior of the extruder is evacuated prior to or simultaneously with the extrusion step so as to exhaust air entrapped in the cylindrical body.
摘要:
Aluminum or aluminum alloy scraps or wastes are broken into chips and extruded under a high temperature to produce extruded structural profiles. The method is characterized by the fact that the interior of the extruder is evacuated prior to or simultaneously with the extrusion step so as to exhaust air entrapped in the body of the chips. There is also disclosed apparatus suitable for performing the method.
摘要:
A process for producing a halogen-containing polycarbonate resin characterized by washing, with an aqueous washing liquid, an organic solvent solution of a mixture of a halogen-containing polycarbonate resin having a halogen content of not less than 4 wt % (hereinafter referred to simply as polycarbonate H) and a polycarbonate resin having a halogen content of not larger than 4 wt % (hereinafter referred to simply as polycarbonate P) the weight ratio of polycarbonate P to polycarbonate H being 0.05-4, and collecting a mixed polycarbonate resin having a halogen content of not less than 4 wt % from said solution.
摘要:
A nuclear fusion reactor (2) or nuclear fission reactor (22) is used as a heat source. A heat exchanger (11 or 37) that contains water to be heated (15) is used for water vapor generation. A circulating pipe (10 or 26) through which a fluid for cooling the nuclear fusion reactor or nuclear fission reactor or for conducting heat exchange circulates is disposed so as to extend in the heat exchanger and be in contact with the water to be heated. Water vapor is thus generated. This water vapor is jetted toward the sky at a state of collimation through a vapor discharge pipe (12 or 36). A cloud for blocking sunlight is formed in the sky from the water vapor jetted to reduce the temperature of the earth surface. This enables a weather modification without discharging any greenhouse gas, e.g., CO2.
摘要:
The supporting apparatus is disposed between a fixed portion and a moving portion facing the fixed portion at a predetermined distance, and supports the moving portion which vibrates while maintaining parallelism to the fixed portion. The moving portion and the fixed portion are respectively provided with receiving members 2F, 2M facing each other. The receiving members 2F, 2M sandwich, under pressure, a rocking member 4 which limits a movement of the moving portion in crosswise directions Y vertical to vibrating directions R of the moving portion while rocking about Its axis accompanying the vibration of the moving portion in the vibrating directions (R).