Abstract: A loader is provided, which is disposed in a low cleanliness room along a border between the low cleanliness room and a high cleanliness room, for transporting a dust free article between an inside of a container receiving the dust free article and the high cleanliness room, comprising a movable stage for mounting the container; an opening portion through which the dust free article is transported between the container and the high cleanliness room; a door for opening and closing the opening portion; a unifying means for unifying a cover of the container and the door when the container approaches the door; and a driving apparatus for moving the cover and the door unified within the loader to open and close the opening portion and the container.

Abstract: To clean the inside and outside of a container capable of containing dust-free objects for carrying, a cleaning apparatus is used within a clean room or a housing in which the cleaning apparatus is installed. The clean room or housing is kept highly cleaned. By the cleaning apparatus, the container is separated into a container body and a lid, the separated container body and lid are subject to cleaning conducted by cleaning means. Coupling means allows the cleaned container body and lid to be coupled again into the container. This coupling operation is performed automatically, the inside of the container that has already been cleaned will not be spoiled in its clean level.

Abstract: A loader disposed in a low cleanliness room along a border between the low cleanliness room and a high cleanliness room, for transporting a dust free article between an inside of a container receiving the dust free article and the high cleanliness room, which includes: (a) a stage for mounting the container; (b) an opening portion through which the dust free article is transported between the inside of the container and the high cleanliness room; (c) a door for opening and closing the opening portion; (d) unifying means for unifying a cover of the container and the door when the container approaches the door; and (e) a driving means for transferring the unified cover and door within the loader to simultaneously open and close the opening portion of the container.

Abstract: There is disclosed a method of producing an aluminum alloy for automotive parts, comprising adding a scrap of an aluminum wrought alloy or a pure aluminum ingot to an aluminum alloy casting scrap, melting the mixture to dilute impurities, and if necessary, adjusting elements of the resultant. According to the above method, aluminum alloy casting scraps, which contain large amounts of impurities and have been difficult to recycle into other articles until now, can be converted to an aluminum alloy material that is applicable as a wrought material usable as a higher-grade material.

Abstract: A loader disposed in a low cleanliness room along a border between the low cleanliness room and a high cleanliness room, for transporting a dust free article between an inside of a container receiving the dust free article to the high cleanliness room, which comprises: (a) a stage for mounting the container; (b) an opening portion through which the dust free article is transported between the inside of the container and the high cleanliness room; (c) a door for opening and closing the opening portion; (d) unifying means for unifying a cover of the container and the door when the container approaches the door; and (e) a driving means for transferring unified cover and door within the loader to simultaneously open and close the opening portion and the container.

Abstract: Disclosed is a method of adding silicon to aluminum. The method is characterized in that silicon particles having a diameter ranging between 2 mm and 50 mm are added to a molten aluminum together with a flux represented by the general formula XaMFb, where "X" represents an element included in the third or fourth period of the Periodic Table, "M" is a III or IV group element of the Periodic Table, and "F" is fluorine. A part of the flux may be added in the form of coating on the surface of the silicon particle.