Elements made by paper-making technique for the production of molded articles and production method thereof
First Claim
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1. An element made by papermaking for use in the production of a cast, which comprises:
- an organic fiber;
a carbon fiber; and
at least-two binders existing among the individual fibers, whereinthe organic fiber content is 10 to 60 parts by weight, the carbon fiber content is 4 to 40 parts by weight, and the at least two binders content is 10 to 85 parts by weight each per 100 parts by weight of the total of the organic fiber, the carbon fiber, and the at least two binders,the carbon fiber has an average length of 0.5 to 10 mm,the element is hollow,the element has no joint seams,the element contains a flow passage for molten metal,the element has both an inlet and an outlet through which a fluid can flow, the outlet being separated from the inlet, andthe at least two binders comprise an organic binder and an inorganic binder.
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Abstract
An element made by papermaking for use in the production of a casting cast which comprises an organic fiber, an inorganic fiber, and a binder. The contents of the organic fiber, the inorganic fiber, and the binder are preferably 10 to 70 parts by weight, 1 to 80 parts by weight, and 10 to 85 parts by weight, respectively. The binder is preferably an organic binder. The organic fiber is preferably pulp fiber.
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Citations
18 Claims
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1. An element made by papermaking for use in the production of a cast, which comprises:
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an organic fiber; a carbon fiber; and at least-two binders existing among the individual fibers, wherein the organic fiber content is 10 to 60 parts by weight, the carbon fiber content is 4 to 40 parts by weight, and the at least two binders content is 10 to 85 parts by weight each per 100 parts by weight of the total of the organic fiber, the carbon fiber, and the at least two binders, the carbon fiber has an average length of 0.5 to 10 mm, the element is hollow, the element has no joint seams, the element contains a flow passage for molten metal, the element has both an inlet and an outlet through which a fluid can flow, the outlet being separated from the inlet, and the at least two binders comprise an organic binder and an inorganic binder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11, 12)
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8. A method of producing the element according to claim l, which comprises the steps of:
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obtaining a slurry comprising the organic fiber and the carbon fiber; forming a molded article from the slurry; and incorporating at least two binders into the molded article so as to obtain said element, wherein the at least two binders comprise an organic binder and an inorganic binder.
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13. A method of producing a cast, which utilizes therein an element which is hollow, which has no joint seams, comprises an organic fiber, a carbon fiber, and at least two binders existing among the individual fibers, wherein the organic fiber content is 10 to 60 parts by weight, the carbon fiber content is 4 to 40 parts by weight, and the at least two binders content is 10 to 85 parts by weight each per 100 parts by weight of the total of the organic, fiber, the carbon fiber, and the at least two binders;
- wherein the carbon fiber has an average length of 0.5 to 10 mm, the element contains a flow passage for molten metal, the element has both an inlet and an outlet through which a fluid can flow, the outlet being separated from the inlet, and the at least two binders comprise an organic binder and an inorganic binder;
said method comprising the steps of; feeding molten metal into the inlet and flow passage for molten metal of the element; and obtaining said cast. - View Dependent Claims (14, 15)
- wherein the carbon fiber has an average length of 0.5 to 10 mm, the element contains a flow passage for molten metal, the element has both an inlet and an outlet through which a fluid can flow, the outlet being separated from the inlet, and the at least two binders comprise an organic binder and an inorganic binder;
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16. A casting mold, comprising:
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an element made by papermaking for use in the production of a cast, which comprises; an organic fiber; a carbon fiber; and at least two binders existing among the individual fibers, wherein the organic fiber content is 10 to 60 parts by weight, the carbon fiber content is 4 to 40 parts by weight, and the at least two binders content is 10 to 85 parts by weight each per 100 parts by weight of the total of the organic fiber, the carbon fiber, and the at least two binders, the carbon fiber has an average length of 0.5 to 10 mm, the element is hollow, the element contains a casting mold having a vent, and the element contains both an inlet and an outlet through which a fluid can flow, the outlet being separated from the inlet, wherein the at least two binders comprise an organic binder and an inorganic binder. - View Dependent Claims (17, 18)
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Specification
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Current AssigneeKAO Corporation
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Original AssigneeKAO Corporation
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InventorsKobayashi, Hiroaki, Nakai, Shigeo, Takagi, Yoshimasa, Sono, Tokihito, Tsuura, Tokuo
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Primary Examiner(s)FORTUNA, JOSE A
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Application NumberUS10/468,597Publication NumberTime in Patent Office2,780 DaysField of Search162/218, 162/222, 162/100, 162/141, 162145-150, 162152-156, 162/157.1, 162/158, 162/164.1, 162/164.3, 162/164.6, 162/165, 1621681-1683, 162/169, 162/181.1, 162/181.8, 264 86- 87, 264101-102, 264/109, 264112-113, 264/122, 264/172, 264/173.1, 264/175, 264/294, 264/344, 264/914, 428 341- 343, 164/349, 164/369, 164/447, 164/520US Class Current162/218CPC Class CodesB22C 1/167 Mixtures of inorganic and o...B22C 9/046 Use of patterns which are e...B22C 9/08 Features with respect to su...Y10T 428/13 Hollow or container type ar...
