EXTRUSION COMPOSITE MATERIAL AND ITS MANUFACTURING METHOD

• Main Author: KUMAGAI MASAKI
• Format: Patent
• Language: English; Japanese
• Published: 18.07.2019
• Subjects: ALLOYS; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METALLURGY; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

To provide an extrusion composite material having an excellent performance equal to or more than that of the composite material provided according to a powder metallurgy process, and to provide a manufacturing method of the extrusion composite material capable of manufacturing the extrusion composite material at a low cost.SOLUTION: A die 41 is pushed against a matrix lump 20 to rotate the die 41 in such a state that the matrix lump 20 as metal matrix 2 is brought into contact with dispersion-planned material 30 as dispersoid 3. The matrix lump 20 is caused to plastically flow by rotation of the die 41 and the dispersion-planned material 30 is dispersed into the matrix lump 20. Thereafter, the matrix lump 20 is extruded from the die 41 and, thereby, extruded composite material 1 which has the metal matrix 2 and the dispersoid 3 which are dispersed in the metal matrix 2 can be manufactured.SELECTED DRAWING: Figure 3 【課題】粉末冶金法により得られる複合材と同等以上の優れた性能を有する押出複合材及びこの押出複合材を安価に製造することができる押出複合材の製造方法を提供する。【解決手段】金属マトリクス２となるマトリクス塊２０と分散質３となる分散予定材３０とが接触した状態で、マトリクス塊２０にダイス４１を押し当ててダイス４１を回転させる。ダイス４１の回転によってマトリクス塊２０を塑性流動させ、分散予定材３０をマトリクス塊２０中に分散させる。その後、マトリクス塊２０をダイス４１から押し出すことにより、金属マトリクス２と、金属マトリクス２中に分散した分散質３とを有する押出複合材１を作製することができる。【選択図】図３