Abstract: A method of packaging a particle-like material includes: creating a state where an inert gas introduction pipe and an inert gas exhaust pipe being inserted into an airtight container, and where the airtight container being filled up with a particle-like material, and then temporarily closing the opening portion; introducing an inert gas through the inert gas introduction pipe into the airtight container, and discharging the inert gas introduced into the airtight container out through the inert gas exhaust pipe, to thereby replace the inside of the airtight container with the inert gas; and, removing the inert gas introduction pipe and the inert gas exhaust pipe out from the airtight container, and then closing the opening portion of the airtight container.

Abstract: The present invention relates to a panel-shaped molded product having a laminated structure which is produced from a resin and used for side doors, back doors, hoods, roofs, etc., and exhibits a more excellent finishing accuracy without occurrence of bleed-out along an inner periphery of a frame part and fine distortions on a design part.

Abstract: The present invention relates to a panel-shaped molded product having a laminated structure which is produced from a resin and used for side doors, back doors, hoods, roofs, etc., and exhibits a more excellent finishing accuracy without occurrence of bleed-out along an inner periphery of a frame part and fine distortions on a design part.

Abstract: A mold assembly comprising a mold, an insert block assembly 20 having an insert block 30, and a first electrode 60A and a second electrode 60B, the insert block 30 comprises an insert-block body 31, and an insulating layer 33, the insert block assembly 20 further comprises a heat-generating member 41 that is electrically connected to the first electrode 60A and the second electrode 60B, that is fixed on the insulating layer 33, that constitutes part of the cavity 15 and that generates Joule heat.

Abstract: An apparatus for introducing a pressurized gas includes a pressurized-gas supply-source, a plurality of measuring tanks, a first pressurized-gas supply-line, pressurized-gas supply valves in the first pressurized-gas supply-line, second pressurized-gas supply-lines and pressurized-gas discharge-control valves disposed in the second pressurized-gas supply-lines. A combination of the measuring tanks is determined on the basis of the amount of a pressurized gas required for forming a hollow portion in a molded article, and the pressurized-gas discharge-control valves disposed in the second pressurized-gas supply-lines are controlled on the basis of the above determination.

Abstract: An apparatus for introducing a pressurized gas comprises a pressurized-gas supply-source 10, a plurality of measuring tanks 20A, 20B and 20C, a first pressurized-gas supply-line 30, pressurized-gas supply valves 31A, 31B and 31C somewhere in the first pressurized-gas supply-line 30, second pressurized-gas supply-lines 32 and pressurized-gas discharge-control valves 33A, 33B and 33C disposed somewhere in the second pressurized-gas supply-lines 32, in which a combination of the measuring tanks 20A, 20B and 20C is determined on the basis of the amount of a pressurized gas required for forming a hollow portion in a molded article, and the pressurized-gas discharge-control valves 33A, 33B and 33C disposed in the second pressurized-gas supply-lines 32 are controlled on the basis of the above determination.

Abstract: An injection-molding apparatus comprises a mold assembly having a first-molten-resin injection portion for injecting a first molten thermoplastic resin into a cavity of the mold assembly, a second-molten-resin injection portion for injecting a second molten thermoplastic resin into the cavity, and a pressurized-fluid introducing portion for introducing a pressurized fluid into the second molten thermoplastic resin injected into the cavity. The injection-molding apparatus also comprises a first injection cylinder communicating with the first-molten-resin injection portion, and a second injection cylinder communicating with the second-molten-resin injection portion.

Abstract: An injection-molding apparatus comprises;

Abstract: A chassis is formed of a one-piece thermoplastic or thermosetting resin body. A bottom member extends in a bottom plane, and has at least three side members extending in respective planes. Junction portions join the bottom member and the side members. Ribs are intermittently molded as one piece to bottom member and to side member and extend from the bottom plane from the bottom member through the junction portion to the side plane of the side member. An opening portion helps to prevent angular deformation of the resin body between the bottom member and the side member from a desired angle between the bottom plane and the side plane when the one-piece body is molded by minimizing differences in the cooling rate at different parts adjacent to the junction portion in the one-piece body. The opening portion is located between the ribs at least adjacent to and along the junction portion. The opening portion has a length along the junction portion that is at least five/ten the length of the junction portion.

Abstract: A molded article is formed of a thermoplastic or thermosetting resin and has two planes joining each other in a junction portion; at least one of the two planes has an opening portion or a thin wall portion in the vicinity of the junction portion in order to decrease warpage of the molded article.