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    • 10. 发明专利
    • Mat material, exhaust gas treating device, and muffler
    • MAT材料,排气处理装置和MUFFLER
    • JP2009085091A
    • 2009-04-23
    • JP2007255888
    • 2007-09-28
    • Ibiden Co Ltdイビデン株式会社
    • OKABE TAKAHIKO
    • F01N3/28B01D53/86
    • D04H1/48C04B26/00C04B28/00C04B2111/00793C04B2111/0081D04H1/4209F01N1/10F01N3/0211F01N2310/02F01N2470/02Y02T10/20Y10T428/24273C04B14/38
    • PROBLEM TO BE SOLVED: To provide a mad material having suitable inter-layer strength, and improved in a handling property. SOLUTION: The mat material includes inorganic fibers; and has a plurality of needle traces extending from first and second surfaces to opposite surfaces, and formed by performing a needling treatment. At least a part of the needle traces extending from the first surface has "penetration depth" D which is grater than a half of the thickness of the mat material and smaller than the thickness of the mat material. At least a part of the needle traces extending from the second surfaces reaches depth greater than a value obtained by subtracting the "penetration depth" D from the thickness of the mat material. Substantially no protrusion of an inorganic fiber bundle exists at a position on the second surface that is on a line extending from a needle trace extending from the first surface, when viewed from the second surface. Substantially no protrusion of an inorganic fiber bundle exists at a position on the first surface that is on a line extending from a needle trace extending from the second surface, when viewed from the first surface. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供具有合适的层间强度的生物材料,并且提高处理性能。 解决方案:垫材包括无机纤维; 并且具有从第一表面和第二表面延伸到相对表面的多个针迹,并且通过进行针刺处理而形成。 从第一表面延伸的针迹的至少一部分具有比垫材料的厚度的一半更大的“穿透深度”D,并且小于垫材料的厚度。 从第二表面延伸出的针迹的至少一部分达到比通过从垫材料的厚度减去“穿透深度”D所获得的值的深度。 当从第二表面观察时,基本上没有无机纤维束的突出部位于从从第一表面延伸的针迹线延伸的线上的第二表面上的位置处。 当从第一表面观察时,在从第二表面延伸的针纹延伸的线上的第一表面上基本上不存在无机纤维束的突起。 版权所有(C)2009,JPO&INPIT