Abstract: A method of preheating an unfinished stator as an intermediate product before a stator as a final product for a motor is provided in order to preheat a mold for molding together with the unfinished stator in short time by using preheating facilities with simplified structures. In the method, the mold has a hollow and longitudinal barrel portion and a flange portion extending outward from an end of the barrel portion. The flange portion is arranged at a horizontal position to turn the barrel portion upward and an end of a cylindrical and longitudinal frame is put on the flange portion in a state where a core of the unfinished stator is fitted in the frame. A heat-resistant box of which an underside is opened covers the frame and the mold to surrounded outsides of the frame and the mold.

Abstract: A method of preheating an unfinished stator as an intermediate product before a stator as a final product for a motor is provided in order to preheat a mold for molding together with the unfinished stator in short time by using preheating facilities with simplified structures. In the method, the mold has a hollow and longitudinal barrel portion and a flange portion extending outward from an end of the barrel portion. The flange portion is arranged at a horizontal position to turn the barrel portion upward and an end of a cylindrical and longitudinal frame is put on the flange portion in a state where a core of the unfinished stator is fitted in the frame. A heat-resistant box of which an underside is opened covers the frame and the mold to surrounded outsides of the frame and the mold.

Abstract: A magnesium alloy contains, in atomic percent: 5.7 at. % or more and 8.6 at. % or less of Al; 0.6 at. % or more and 1.7 at. % or less of Ca; 0.05 at. % or more and 0.27 at. % or less of Mn; and 0.02 at. % or more and 0.36 at. % or less of a rare earth element (RE); and any one of 0.1 at. % or more and 0.3 at. % or less of Zn and 0.02 at. % or more and 0.18 at. % or less of Sn, wherein the contents in atomic percent satisfy the condition of the inequality of the following Formula (1), and the balance is Mg and inevitable impurities. (Ca+RE)/Al>0.

Abstract: An improved Al—Mn-based magnesium alloy is provided which shows excellent heat resistance, creep resistance, and mechanical strength in a balanced manner. The magnesium alloy contains 4.0% by mass or more and 8.50% by mass or less of Al; 0.1% by mass or more and 0.6% by mass or less of Mn; 1.5% by mass or more and 6.0% by mass or less of Ca; and 0.1% by mass or more and 0.5% by mass or less of Sn; the balance being Mg and unavoidable impurities.

Abstract: A degradable Mg alloy containing: 3.9% by mass or more and 14.0% by mass or less of Al, from 0.1% by mass or more and 0.6% by mass or less of Mn, and 0.0% by mass or more and 1.0% by mass or less of Zn; 0.01% by mass or more and 10.0% by mass or less of Ni, Cu, or both of Ni and Cu; and the balance consisting of Mg and inevitable impurities is used to manufacture a degradable structural member made of a magnesium alloy having sufficient strength and degrading at an appropriate timing in an aqueous environment.

Abstract: A magnesium alloy contains, in atomic percent: 5.7 at. % or more and 8.6 at. % or less of Al; 0.6 at. % or more and 1.7 at. % or less of Ca; 0.05 at. % or more and 0.27 at. % or less of Mn; and 0.02 at. % or more and 0.36 at. % or less of a rare earth element (RE); and any one of 0.1 at. % or more and 0.3 at. % or less of Zn and 0.02 at. % or more and 0.18 at. % or less of Sn, wherein the contents in atomic percent satisfy the condition of the inequality of the following Formula (1), and the balance is Mg and inevitable impurities. (Ca+RE)/Al>0.

Abstract: An improved Al—Mn-based magnesium alloy is provided which shows excellent heat resistance, creep resistance, and mechanical strength in a balanced manner. The magnesium alloy contains 4.0% by mass or more and 8.50% by mass or less of Al; 0.1% by mass or more and 0.6% by mass or less of Mn; 1.5% by mass or more and 6.0% by mass or less of Ca; and 0.1% by mass or more and 0.5% by mass or less of Sn; the balance being Mg and unavoidable impurities.

Abstract: A closure with improved sealing end surface plates for enclosing connecting portions of a plurality of sizes of a communication cable. The closure includes a sleeve-like closure body divided longitudinally into portions. The two portions are fastened and sealed. Grooves are formed on an inner surface of the closure body at opposite ends thereof to accommodate the sealing end surface plates interposed between the cable and the closure body. Each of the sealing end surface plates includes an annular rubber end plate and a pair of plastic side plates.