Abrégé

A manufacturing method for a cast bar and tube made of a magnesium alloy, includes steps of preparing a manufacturing device; depressurizing a vacuum chamber through a depressurization device; heating a vicinity of an opening of a hollow tube; inserting the opening of the hollow tube into a molten metal; switching a valve member to be open; introducing the molten metal into a cylindrical part, and filling the cylindrical part with the molten metal; cooling the hollow tube; and continuously vibrating the hollow tube until completing solidification of the molten metal in the cylindrical part.

Classes IPC  ?

• B22D 18/06 - Coulée par le vide, c.-à-d. utilisant le vide pour remplir le moule
• B22D 21/00 - Coulée de métaux non ferreux ou de composés métalliques, dans la mesure où leurs propriétés métallurgiques affectent le procédé de couléeUtilisation de compositions appropriées
• B22D 27/04 - Action sur la température du métal, p. ex. par chauffage ou refroidissement du moule
• B22D 27/08 - Secouage, vibration, ou retournement des moules
• B22C 9/26 - Moules pour pièces de forme particulière pour pièces évidées pour tuyaux à ailettesMoules pour pièces de forme particulière pour pièces évidées pour radiateurs
• B22D 9/00 - Machines ou installations pour la coulée des lingots
• B22D 11/00 - Coulée continue des métaux, c.-à-d. en longueur indéfinie
• B22D 11/10 - Alimentation en métal liquide ou traitement du métal liquide
• B22D 11/114 - Traitement du métal liquide en utilisant des moyens agitateurs ou vibrants
• C22C 21/00 - Alliages à base d'aluminium
• C22C 23/00 - Alliages à base de magnésium

Abrégé

A cast rod/pipe manufacturing device is provided with: a molten metal furnace (10) that holds a molten casting material; a hollow pipe (20) that has a molten metal entry part (23) which molten metal enters and that is able to be inserted into and retreated from the molten metal furnace (10); a pressure reducing unit (30) that reduces pressure; a connection member (40) that connects the hollow pipe (20) and the pressure reducing unit (30); and an openable and closable valve member (50) that is provided in the connection member (40). By reducing the pressure in the pressure reducing unit (30) side from the valve member (50) by the pressure reducing unit (30) with the valve member (50) brought into a closed state, inserting an opening (25) of the hollow pipe (20) into the molten metal furnace (10), and bringing the valve member (50) into an open state, the pressure in the molten metal entry part (23) is reduced, the molten metal enters the molten metal entry part (23), and by solidifying the molten metal that has entered in the molten metal entry part (23), a long member is manufactured. Consequently, a cast rod or cast pipe used as a material for casting, plastic working, or the like can be obtained easily in a short time at low cost.

Classes IPC  ?

• B22D 18/06 - Coulée par le vide, c.-à-d. utilisant le vide pour remplir le moule
• B22D 27/08 - Secouage, vibration, ou retournement des moules