Abstract: The present invention relates to a method for cooling a steel plate comprising the steps of: forming a water pool with jets of cooling water being injected to impinge on one another by using one slit nozzle and a plurality of induced laminar flow nozzles, the slit nozzle being provided in a position on an upper surface side of the steel plate, and the induced laminar flow nozzles being provided in a position on a lower surface side of the steel plate along a transfer direction and a direction perpendicular to the transfer direction; and passing the steel plate into the water pool, wherein when a top portion of the steel plate passes over the induced laminar flow nozzles located at least on the side of highest upstream, a volume of the cooling water to be injected from each of the induced laminar flow nozzles is reduced.

Abstract: The invention provides a titanium alloy having a narrow distribution of material properties in the thickness direction, allowing easy to finish the surface of the forged material after forging, during working the product to the final shape. The forged titanium alloy has a low sensitivity for cracking, excellent workability, and favorable ductility and fatigue properties, and provides a method for forging the titanium alloy. In order to attain the forged titanium alloy and the method for forging thereof, forging the titanium alloy, which has T&bgr; ° C. of the &bgr;-transus, is conducted, while keeping the relation of 400° C.≦Td and (T&bgr;−400)° C.≦Tm≦T&bgr; at a strain rate of a range from 2×10−4 s−1 to 1 s−1, further limiting the chemical composition of the titanium alloy, keeping the relation of [(Tm−Td)≦250° C.] during forging, where T&bgr; (° C.) is the &bgr;-transus of the titanium alloy, Tm(° C.

Abstract: To provide a titanium alloy which is a high-strength low-alloy with a 750 MPa or more in terms of tensile strength. A production method is capable of producing the titanium alloy by using a low-priced, low-grade sponge titanium as a raw material. This high-strength low-alloy titanium alloy has an alloy composition containing O of from 0.2 to 0.8%, C of from 0.01 to 0.15%, N of from 0.01 to 0.07%, Fe of from 0.3 to 1.0% and the balance being substantially Ti. At the time of production, a low-grade sponge Ti containing N of 0.01% or more and Fe of 0.2% or more is used in at least a portion of raw materials to allow it to be a source of the aforementioned Ni and Fe components.

Abstract: An initiator explosive for detonating a second explosive that includes nanocrystalline silicon containing a plurality of pores and a solid state oxidant disposed within said pores.

Abstract: An oxidizer package for a propellant system for a motor in which the oxidizer is separated from fuel grain, the oxidizer package comprising oxidizer material and an ignition system therefor in a wrapping or sealing material. A hybrid rocket comprising oxidizer material and fuel grain, the oxidizer material being separated from the fuel grain and being in the form of a single package or plurality of packages of oxidizer material and an ignition system therefor, said packages generally conforming to the shape of the rocket. A grid of a pyrotechnic material. A propulsion system for a hybrid rocket comprising oxidizer material in a matrix, mesh, wool, foamed metal or wires of structural or pyrotechnic material.

Abstract: A buttress to fit inside a tire between its beads, said beads being abutted by respective wheel rims. The buttress is formed by joining a plurality of arcuate segments. Each segment has an arcuate central and two edge walls. Each one of a plurality of blades is integral with all of the walls. The blades are parallel so the entire segment can be made by an injection molding process.

Abstract: A support ring for a runflat tire system which comprises an annular body made of an elastic material having a radially inner circumferential surface which fits to a mounting portion of a wheel rim when mounted thereon, and a radially outer circumferential surface which comes into contact with the inside of the tread portion of a pneumatic tire mounted on the wheel rim when the tire is deflated and loaded, wherein the outer circumferential surface is wider in the axial width than the inner circumferential surface, and in a cross section including the central axis of the support ring, the outline of the annular body is substantially a trapezoidal shape of which two parallel long and short sides are the outer and inner circumferential surfaces, respectively, and the remaining two sides are inclined at acute angles with respect to the long side.

Abstract: A two-piece tire assembly has a removable tread belt 12 for installing about the circumference of a tire carcass 14. The tread belt has a pair of lateral ends each axially extending beyond the inflated unloaded carcass 14 at the circumferential surface by a distance of at least 4% of the width as measured at the tread belt 12 and carcass 14 interface. The carcass 14 has an abrasion resistant rubber layer 82A at the tread belt interface. The tread belt 12 also has the abrasion resistance tread compound 82B at the carcass 14 interface.

Abstract: A two-piece tire assembly has a removable tread belt 12 for installing about the circumference of a tire carcass 14. The tread belt has a pair of lateral ends each axially extending beyond the inflated unloaded carcass 14 at the circumferential surface by a distance of at least 4% of the width as measured at the tread belt 12 and carcass 14 interface. The carcass 14 has an abrasion resistant rubber layer 82 at the tread belt interface. The tread belt 12 also has the abrasion resistance tread compound 82 at the carcass 14 interface. The tread belt 12 has a tread portion 80 that includes a tread cap 80A and a tread base 80B.

Abstract: A pneumatic radial ply passenger tire (10) having a tread (20), a casing with two sidewalls (14, 16), one or more radial plies (18) extending from and wrapped about two annular beads (13) and a belt reinforcement structure (15) located radially between the tread and the plies. The tread has a first contour-defining curve extending outwards from the equatorial plane of the tire towards the sidewalls, an adjacent second contour-defining curve disposed between the first contour defining curve and the sidewalls and an adjacent third contour defining curve extending outwards from the second contour defining curve and the sidewalls. The first, second and third contour-defining curves have first (R1) and second (R2) and third (R3) radii chosen such that R2>R1>R3.

Abstract: An assembly to be mounted in an axial spindle for communicating pressurized air from the axle to a rotary union in a tire inflation system. The assembly includes an arbor having an air flow channel extending therethrough, a flange intermediary of the arbor ends and an axially inclined portion proximate the flange. A sealing member is carried by the flange for forming an airtight seal with the axle spindle. A split ring locking assembly is disposed about the inclined portion of the arbor that is comprised of a plurality of segments held by an expansible retention spring. The segments move radially outwardly upon the locking assembly being moved along the inclined arbor portion and engage the axle spindle, securing the plug assembly within the spindle. A fastening member threadably engages the arbor for urging the locking assembly along the inclined arbor portion to effect securement of the plug assembly within the axle spindle.

Abstract: A run-flat tire-wheel assembly having, in an inside cavity of the tire/rim, a run-flat support formed by a ring-shaped metal shell and rubber elastic members or a ring-shaped metal shell and rubber elastic members composed of a rubber composition containing 100 parts by weight of a peroxide cross-linkable rubber and 1 to 30 parts by weight of a peroxide cross-linking agent, wherein the contact surfaces of the ring-shaped metal shell with the rubber elastic members are subjected to an electrolytic polymerization with 6-mono- or di-allylamino-1,3,5-triazine-2,4-dithiol or its mono- or di-salt, whereby the bondability between the ring-shaped metal shell and rubber elastic members is improved.

Abstract: A pneumatic tire which facilitates separation of a rubber layer and is excellent in recyclability and retreadability and a method of scrapping the same. A pneumatic tire comprises a partition layer buried adjacent to a rubber layer, the partition layer including at least one cord repeatedly bent to turn around at its bent portion and arranged in a plane and rubber portions interposed between adjacent portions of the cord. Herein, the cord is arranged in a direction intersecting with the tire circumferential direction. The cord of the partition layer is pulled in an in-plane direction of the partition layer to sequentially cut the rubber portions interposed between the adjacent portions of the cord. The rubber layer adjacent to the partition layer is thus separated.

Abstract: A supply of sheet stock material for use in a cushioning conversion machine is disclosed. The supply of stock material includes at least one ply of sheet stock material rolled or folded into a compact configuration such as a roll of wound stock material or a stack of fan-folded stock material. The ply has disposed on a leading or trailing end thereof, a pressure sensitive adhesive layer and a removable release liner covering the pressure sensitive adhesive layer. When a supply of sheet stock material is almost spent, a succeeding supply of stock material may be spliced to the almost spent supply by removing the release liner to expose the adhesive and then applying the leading or trailing end, having the adhesive thereon, to a trailing end of the almost spent supply of stock material or leading end of the succeeding supply of stock material.

Abstract: A process and apparatus are provided for applying double-layered rigidity strips to a sealable foil web which is transported in sequences. V-shaped loops are formed at predetermined foil sections set at a distance from one another in the web transport direction. The sides of the loops are subsequently sealed together in such a way that the thus formed rigidity strips, extending transversely to the direction of transport, project collar-like from the foil web. Each foil section at which a loop is formed, a controlled auxiliary loop is arranged which serves for adaptation to changes in format regarding the distances between the foil sections. A drum, having a relatively large diameter serves as a transport roller, which drum has devices arranged around its circumference for the purpose of forming a plurality of loops and auxiliary loops.

Abstract: An apparatus and method for forming a lenticular optical system is provided in which a composite image is viewable through a molded lens from a first angle and an object or image placed at a preselected distance beneath the composite image is viewable from a second angle. The apparatus of the present invention provides for registration of the lenticular lenses with the printed image when the lenses are formed.

Abstract: A device and method for producing individual folded labels having miter folded tabs includes a first cutting station for partially cutting the ribbon of labels to form a tab at each edge of the ribbon of labels and an interior base cut. The ribbon of label remains intact at a pair of connection points separating the tabs. The tabs are folded at an angle to produce a miter fold at a folding station. A second cutting station ultrasonically cuts the miter folded ribbon of labels along the connection points to subdivide the ribbon of labels into separate, individual folded labels.

Abstract: A method of making a composite part including an insert and an elastomer layer that is bonded to the insert. The insert is placed in a mold and an uncured elastomer is sprayed into the mold to form a composite part. The inherent adhesive properties of the uncured elastomer is the sole mechanism for bonding the elastomer to the insert.

Abstract: The specification and drawings describe and show embodiments of the present invention in the form of a combination closure tape and tear strip, an object comprising the combination closure tape and tear strip, and a method of sealing and later opening said object utilizing the combination closure tape and tear strip. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to ascertain quickly the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

Abstract: Selection criteria for dyes that predicts efficiency and performance for plastics welding. A first stage quantitative calculation screens dyes that possess an absorption band that can be matched to a laser that is suitable for plastic welding. It also identifies absorption troughs in the visible spectrum and establishes relationships between the relative optical densities of the absorption band and trough. A second stage quantitative calculation screens dyes for their contribution to the transparency of the substrate. By combining these two stages, the usefulness of a candidate dye can be quickly, easily and inexpensively determined.

Abstract: A first substrate, a second substrate, an intermediate and a plurality of particles form a laminated structure. The first substrate has a first conjunction portion and a second conjunction portion, and the second substrate has a third conjunction portion and a fourth conjunction portion which are characterized by a first hardness. The intermediate is disposed between the first substrate and the second substrate. The particles provided with a second hardness greater than the first hardness are coated on the third conjunction portion to contact the first conjunction portion and coated on the fourth conjunction portion to contact the second conjunction portion. A height difference with reference to the base surface of the second substrate exists between the end surface of the third conjunction portion and the end surface of the fourth conjunction portion.

Abstract: A method of producing and using a preprinted label with pressure sensitive adhesive and an electron beam cured release coating is described. The label is formed from a web on which surface printing and the release coating are provided on one side. The pressure sensitive adhesive is pattern applied to the opposite side of the web. One or more processing additives in the release coating include a functional group which reacts into the electron beam cured network during cross-linking. The reacted-in additives are non-migratory and do not bloom out of the coating or adversely affect the PSA when the web is wound up in a roll.

Abstract: A method for packing transparent layers for image sensor packages of the invention includes the steps of: providing a plurality of clean transparent layers; placing the plurality of clean transparent layers in a predetermined tray; providing a frame attached to a tape; adhering the tray carrying the plurality of transparent layers to the tape, which is further attached to the frame in advance, such that the transparent layers are adhered by the tape; and transporting the frame to which the transparent layers are adhered.

Abstract: The present invention relates to activatable webs having fibrous substrates coated with activatable adhesive and methods of forming the webs into articles by indirectly activating the adhesive using microwave energy. The activatable web may further include a protective coating of a material that is compatible with the adhesive. One or more activatable webs can be formed into the shape of an article such as by wrapping the activatable webs around a mandrel. The activatable webs can be subjected to microwave energy shortly before being formed into the shape of the article or while they are held in the appropriate shape. The microwave energy is absorbed by moisture retained within the fibrous substrate, which becomes heated. The heated moisture activates the adhesive, causing it to bond to any webs in which the activatable web has been brought into contact and to stiffen.

Abstract: A method and a device for locally removing coatings from components, a component (5) provided with a coating at least in certain areas being provided, an absorbent medium being provided, the medium being supplied with a coating removal liquid, and the medium containing the coating removal liquid being brought into contact with the area of the component (5) from which the coating is to be removed (FIG. 2).

Abstract: Disclosed herein are slurry compositions for use in CMP (chemical mechanical polishing) process of metal wiring in manufacturing semiconductor devices, comprising a peroxide, an inorganic acid, a propylenediaminetetraacetate (PDTA)-metal complex, a carboxylic acid, a metal oxide powder, and de-ionized water, wherein the PDTA-metal complex plays a major role in improving overall polishing performance and reproducibility thereof by preventing abraded tungsten oxide from readhesion onto the polished surface, as well as in improving the dispersion stability of the slurry composition.

Abstract: The invention provides methods and apparatuses for controlling critical dimension (CD) uniformity of a photomask by neutralizing CD variation associated with pattern density and process fluctuation.

Abstract: A label applicator for cutting labels to be applied to objects such as newspapers, letters, or flat mailpieces. The label applicator includes a movable blade and a fixed blade for cutting a label from label material fed through the label applicator. The fixed blade may be located on a cutting assembly via registration pins. The label applicator may include a paddle for applying the label to an object. The applicator may be incorporated into a mail processing system and controlled by various controllers.

Abstract: A flange for a tire building drum having a transverse central plane and including a central shaft having a longitudinal axis which defines a rotational axis of the drum including first and second sets of outer-circumference defining shoes which are expandable from radially retracted positions internally of the drum to radially extended positions to define first and second mirror image circumferential radial flanges which are disposed on respective ones of the opposite sides of, and parallel to, the transverse central plane of the drum, each set of shoes including a plurality of individual shoes, each of which is a generally triangular geometry when viewed in a plan view thereof and having respective apices, bases and opposite sides.

Abstract: An apparatus is provided for transferring components from a pick-up position amongst a supply of components to a placement position on a receptor, such as a die pad, during semiconductor processing. It includes a first delivery device and a second delivery device operative to alternatively transfer the components from the pick-up position to the placement position. The second delivery device is arranged opposite the first delivery device about a line passing through the pick-up position and the placement position.

Abstract: A filler for finishing architectural panel joints comprising masticized tape having a preferential distribution of mastic along its working surface. The preferential distribution of mastic facilitates finishing of the architectural panel joints. The preferential distribution of mastic may comprise the formation of a non-planar layer of mastic on the tape. The distribution may further comprise a greater volume of mastic along the edge portions of the tape than in the center portion of the tape, or vice versa, or a greater portion in one region of the tape than in another region of the tape. A tool is also provided comprising a mechanism for dispensing masticized tape connected to a tool body. The mechanism comprises a flow valve having a working surface suitable for preferential distribution of the mastic onto the tape. The mechanism further comprises mastic shrouds for containing the flow of mastic and a sprocket cap.

Abstract: An ergonomic dispenser of a roll of adhesive film facilitates application of that film to a surface with minimum manipulation by the user. The dispenser has a low profile where the cutting blade, axis of rotation of the adhesive film roll and dispenser handle lie in closely aligned planes. This creates a low profile dispenser which places the roll of adhesive film in close proximity to the application surface. A flexible shield overlies the cutting blade to prevent unwanted user contact with the blade. Various means are used to manage the loose end of film after it is cut off the roll so that it does not adhere to the roll or double over on itself Unidirectional movement of the roll is also used to manage the loose end of tape after cutoff. Optionally, blade means may be added to the dispenser's handle for use in opening cartons, cutting string or the like.

Abstract: A protective pad which removably attaches to the rim of a wheel thereby protecting the wheel from damage during tire mounting and demounting when such mounting or demounting is performed manually using a tire working implement.

Abstract: The invention provides a sliding screen door having a net guide that moves in association with the opening and closing movement of a net, wherein the opening and closing operation of the screen door can be performed smoothly while providing a buffering effect with an adequate resistance, without hindering the opening and closing operability of a movable edge member, by enabling a reaction force, which is required for its bending, to be used as a buffering force against the operating force of the movable edge member, the net guide being formed by connecting guide pieces. In order to do so, a net guide 12 fed out from and drawn into the lower end of the vertical frame member 6 in association with the opening and closing operation of the net 4, is provided for guiding the lower end of the net 4. The net guide 12 is formed by connecting with a tape member 16 a number of guide pieces 14 formed substantially into a U-shape with a bottom portion 14a and a stabilizing portion 14b.

Abstract: A horizontal Venetian blind slat structure includes a plurality of horizontal rods and binding cords wherein the horizontal rods are made of elongated natural materials such as bamboo or wooden sticks, and the binding cords are of different colors and patterns. The horizontal rods arranged in parallel are bound into a large piece via the binding cords weaving up and down the horizontal rods for combination thereof. Fastening glue is applied onto the binding cords to strengthen the combination thereof, and fissures are formed at the space between every two horizontal rods with no binding cords attached thereto. The large piece of horizontal rods bound via the binding cords is then cut into a blind slat of proper length with two cord-passage holes disposed at both ends thereof; whereby, via the binding cords of different colors and patterns, the blind slat is variably changed in beautiful display.

Abstract: This device is related to an operating rope wound on a sprocket of clutch for operating a sunshade. When a user pulls the operating rope to either opening or closing direction, a shaft being attached to the sprocket and clutch is rotated to open or close the sunshade. The operating rope comprises a primary rope (4) and a plurality of beads (5) being integrally fixed on the primary rope (4) with equidistant intervals. The primary rope (4) passes through the center of the beads (5) being made of plastic. The beads (5) are also formed with the directional indicators to avoid the wrong operation of the sunshade. The plurality of beads having a different cross section at the top and bottom with respect to the center is aligned in series to indicate an operating direction.

Abstract: A curtain construction, specifically designed for windows and furnishings, comprises a length of cloth supported by a supporting frame, which encompasses said length of cloth on the four sides thereof latching and sliding means.

Abstract: A foldable shade having a four-sided shape comprises an elongated, magnetic base having a section of U, a plurality of parallel slats wherein each of the odd numbered slats includes a plurality of longitudinal grooves adjacent either side, and two pairs of a plurality of projections, each pair being disposed between the grooves and the side, and each of the even numbered slats includes a plurality of longitudinal projections adjacent either side, and two pairs of a plurality of grooves, each pair being disposed between the projections and the side; and a plurality of suction cups fixedly provided at the slat farthest from the base. The slat next to the base is inserted therein. In a folded state the grooves of each of the remaining slats are inserted in the projections of the immediate next slat proximate the base.

Abstract: The invention provides a combined decorative and utility unit, which has a decorative screen assembly as its basic element. The screen assembly can be combined with other appliances to achieve a variety of utility purposes such as sun blinds, screen windows, window privacy partitions, decor wall panels, and decorative storage units. The screen assembly has a laminar member, preferably having a graphic display, attached to frame members. Relative positions of the frame members may be adjusted by a cam arrangement to vary tension in the laminar member. The screen assembly can be horizontally attached to a wall to work as a decor wall panel, or vertically attached to a wall as a divider or a poster. When combined with supporting elements, the screen assembly can stand on the ground to work as sun blinds or window privacy partitions.

Abstract: The invention provides for methods for producing pulp (comprising cellulose) and lignin from lignocellulosic material, such as wood chips. The methods involve acid catalyzed hydrolysis. Lignocellulosic material having a relatively high moisture concentration can be used as the starting material. The lignocellulosic material is impregnated with an acid (preferably nitric acid) and heated. During the heating lignin is depolymerized at relatively low temperatures, and the acid catalyst is distilled off. The acid catalyst can be collected and recycled after impregnation and heating. The lignocellulosic material is then digested in an alkaline solution under heat, dissolving the lignin and allowing the pulp to be removed. Acid is added to the black liquor to precipitate the lignin which is then removed. The resultant amber liquor can be further processed into other ancillary products such as alcohols and/or unicellular proteins.

Abstract: A method and system for determining trace oversize contaminant particles in a paper-making pulp employs a screen assembly having a screen housing with a screen mounted therein, and ports for introduction of aqueous pulp and rinsing and flushing fluids, and for withdrawal of screened aqueous pulp, the screen housing has no port designated for the sole purpose of removing accumulated contaminant particles from the screen housing; instead the port employed for introduction. of aqueous pulp and which may also be employed for introduction of rinsing fluid to the housing, is employed as the flushing port for removal of contaminant particles.

Abstract: The present invention refers to a procedure for the manufacture of a multi-layer pulp product, preferably paper or cardboard. Said procedure consists of applying a filler between at least two layers of fibre material in motion prior to the final joining together of them. The filler is preferably of inorganic origin, though it can consist of organic components, and calcium sulphate is preferably used.

Abstract: The specification discloses papers suitable for liquid electrophotographic printing (“LEP”) and a method for making such papers. According to the method, a papermaking furnish containing cellulosic fibers is formed into a fibrous web on a papermaking machine and at least partially dried. The web is then treated with a sizing composition comprising starch, an acrylic acid polymer, an organic material having an HLB value of from about 2 to about 14 such as a polyglycerol ester, and water. The treated web is dried and calendered to a final desired caliper. Since the sizing composition is an aqueous mixture, it may be applied to the web on-line during production of the paper on the papermaking machine, thereby avoiding the expense and inconvenience of conventional off-line methods used to make existing LEP papers. The resulting paper exhibits at least 80% and preferably above 90% toner adhesion as measured by the tape pull tests used for the assessment of papers printed by LEP.

Abstract: A process for producing a fade-resistant paper in which a cationic charged dye fixative is thoroughly mixed with fibers in a pulper, and a fade resistant pigment is added. To this mixture is added a three component retention system and the paper is formed on a Fourdrinier paper machine. After initial drying, the paper is treated with ethylated starch on a size press, and then finally dried.

Abstract: The invention relates to a method for improving the manufacturing and usage economy of a filler, in particular a calcium carbonate based filler, used in the manufacture of paper and board, which calcium carbonate based filler is prepared by precipitating calcium carbonate particles onto the surface of noil fibrils. The invention also relates to a method by means of which it is possible to manufacture and/or produce said filler in a form that can be used directly in paper and board applications. Further, an object of the invention is to provide a method for manufacturing paper and/or board, which method makes use of chemical pulp having said filler incorporated therein as dried in chemical pulp bales.

Abstract: A method comprising adding a suspension of a paper-property-enhancing substance, such as but not limited to, a wax suspension, to a paper product precursor. The suspension may be added to the paper product precursor in a production line prior to making a finished paper product. The suspension may be manufactured at a site where the paper product precursor is produced. A finished paper product may be made from the paper product precursor. An article is also described comprising a finished paper product made by adding a suspension of a paper-property-enhancing substance to a paper product precursor.

Abstract: Containers for collecting and discharging particulate lignocellulosic material are disclosed, including a cylindrical upper portion, a lower portion tapering towards a bottom elongated space, an exit pipe below the bottom, a pair of parallel screws mounted on parallel shafts in the elongated space in a common horizontal plane for feeding the particulate lignocellulosic material towards the exit pipe, a pair of distributors disposed on the parallel screws above the exit pipe comprising radial discs, and a pump below the exit pipe for transporting the particulate lignocellulosic material to a subsequent step.

Abstract: A method and machine for the manufacture of a fiber web, in particular of a tissue web or of a hygienic web, in which the fiber web is formed on a soft clothing with fine pores and the clothing is guided over a surface subject to suction and in which the fiber web is transferred from a soft clothing with fine pores directly onto a TAD wire of a TAD drying apparatus. An optimum quality of the respective final product is achieved with an energy effort which is as low as possible, in particular, the energy effort required with vacuum generation in the dewatering of the fiber web is reduced.

Abstract: Provided is an evaporative pattern casting process wherein a casting process plan capable of attaining the optimal discharge of generated gas can easily be decided. The present invention is an evaporative pattern casting process for casting a product, which comprises pouring a molten metal in a mold in which a pattern made of an expanded synthetic resin is embedded in molding sand, and evaporating the pattern with the molten metal, while gas generated by evaporation of the pattern is discharged outside the mold through a discharging passage comprising a discharged gas suppressing means, wherein the ventilation of the discharging passage is controlled on the basis of the material and the shape of the pattern and the kind of the molten metal and the temperature of the molten metal.

Abstract: An aluminum casting process using a casting mold in which after the cavity (25) is filled with an inert gas, magnesium is introduced into the cavity to have a magnesium layer (58a) deposited on the cavity wall. Then, nitrogen gas is introduced into the cavity to form magnesium nitride (58b) on the surface of the magnesium layer after the cavity wall is heated to a specific temperature. Then, molten aluminum is supplied to have an aluminum casting molded, while the surface of the molten aluminum (39) is reduced with magnesium nitride. This makes it possible to form magnesium nitride within a short time and decrease the amount of nitrogen gas as required.