Holding material for catalyst converter and manufacturing method of same

A method for manufacturing a holding material for a catalyst converter, comprising:

• pouring an aqueous slurry containing inorganic fibers into a dewatering molding tool sectioned into a deeper region, a shallower region, and a region having a depth gradually decreased toward the shallower region from the deeper region;
• dewatering molding the aqueous slurry to obtain a wet molded article;
• and drying the wet molded article while compressing the whole wet molded article in a thickness direction.

A method for manufacturing a holding material for a catalyst converter, comprising:

• pouring an aqueous slurry containing inorganic fibers into a dewatering molding tool sectioned into a region having a largest aperture ratio, a region having a smallest aperture ratio, and a region having an aperture ratio gradually decreased toward the region having a smallest aperture ratio from the region having a largest aperture ratio;
• dewatering molding the aqueous slurry to obtain a wet molded article;
• and drying the wet molded article while compressing the whole wet molded article in a thickness direction.

(canceled)

A method for manufacturing a holding material for a catalyst converter, comprising:

• pouring an aqueous slurry containing inorganic fibers into a dewatering molding tool having a region in which a depth is gradually increased up to a first depth at one side and a region in which a depth is gradually increased up to a second depth at the other side, on the basis of a region having a shallower depth as a starting point;
• dewatering molding the aqueous slurry to obtain a wet molded article;
• and drying the wet molded article while compressing the whole wet molded article in a thickness direction.

A method for manufacturing a holding material for a catalyst converter, comprising:

• pouring an aqueous slurry containing inorganic fibers into a dewatering molding tool having a region in which an aperture ratio is gradually increased up to a first aperture ratio at one side and a region in which an aperture ratio is gradually increased up to a second aperture ratio at the other side, on the basis of a region having a smallest aperture ratio as a starting point;
• dewatering molding the aqueous slurry to obtain a wet molded article;
• and drying the wet molded article while compressing the whole wet molded article in a thickness direction.