摘要:
A part prepared through a sheet-making process for use in producing castings which comprises an organic fiber preferably in an amount of 10 to 70 parts by weight, an inorganic fiber preferably in an amount of 1 to 80 parts by weight, and a binder preferably in an amount of 10 to 85 parts by weight. The binder is preferably an organic binder, and the organic fiber is preferably a pulp fiber.
摘要:
A member for producing castings which is prepared by forming a base paper for a paper-jointing tube into a tubular shape and comprises an organic fiber, an inorganic fiber, and a binder. The base paper for a paper jointing tube is preferably formed into a tubular shape through winding. 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 organic fiber is preferably a pulp fiber.
摘要:
A method of producing pulp moldings having a paper-making process comprising the steps of assembling split mold halves (11, 12) having suction passageways (14) to form a paper-making mold (10), feeding pulp slurry of predetermined set feed concentration into the cavity (13) in the paper-making mold (10), and sucking the pulp slurry through the suction passageways (14) to form a pulp layer (15) on the inner surface of the paper-making mold (10), wherein the concentration of the pulp slurry in the cavity (13) in the initial and/or final period of formation of the pulp layer (15) in the paper-making process is lower than the above-mentioned set feed concentration of the pulp slurry.
摘要:
A method of manufacturing a pulp mold formed body, comprising the steps of feeding pulp slurry into a cavity (4) of a paper mold (1) having the cavity of a specified shape so as to form a main formed body (7) comprising a pulp mold formed body (7a) having an opening and a release part (7b) connected continuously to the end surface of the opening and having a flange (7c), inserting a core (8) into the main formed body (7), expanding the core (8) so as to press the main formed body (7) against a paper surface, taking out the main formed body (7) from the paper mold (1), and cutting the main formed body (7) at a connection part between the release part (7b) and pulp mold formed body (7a) of the main formed body (7).
摘要:
A heater which is easy to handle when in use, small in temperature variation and simple to produce, and which is provided with a cap (20) formed by joining and fixing together curved peripheral edges (10a) as respective peripheral edges of two semi-elliptic heater-containing sheets (10) of generally the same shape, each sheet (10) comprising a waterproof inner layer sheet (2), an air-permeable sheet (5) disposed so as to cover the entire front surface of the inner layer sheet (2) and a plurality of heating elements (3) held between and fixed by the inner layer sheet (2) and the air-permeable sheet (5) and adapted to generate heat on contact with air, the heating elements (3) being distributed over the entire surface of the cap (20), the heater-containing sheets (10) being joined and fixed together with respective inner layer sheets (2) facing inward.