B29K2505/12

Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the same

The present invention relates to ferrite particles for bonded magnets and a resin composition for bonded magnets which can provide a bonded magnet molded product capable of realizing a high magnetic force and a complicated multipolar waveform owing to such a feature that the ferrite particles are readily and highly oriented against an external magnetic field in a flowing resin upon injection molding, as well as a bonded magnet molded product obtained by injection-molding the above composition. According to the present invention, there are provided ferrite particles for bonded magnets which have a crystallite size of not less than 500 nm as measured in an oriented state by XRD, and an average particle diameter of not less than 1.30 μm as measured by Fisher method; a resin composition for bonded magnets; and a molded product obtained by injection-molding the composition.

METHOD FOR MANUFACTURING MOLDING DIE, AND MOLDING DIE
20230382042 · 2023-11-30 ·

A method for manufacturing a molding die used with an injection molder, the method including plasticizing a creating material containing metal particles and resin to produce a plasticized material, and dispensing the plasticized material toward a stage to stack layers on each other to create a laminate that forms at least a portion of the molding die, with an average particle diameter D50 of the metal particles being smaller than or equal to 23 μm.

Injection-molded physical unclonable function

A physical unclonable function is disclosed. A highly random distribution of magnetic particles within a thermoplastic polymer is created by magnetizing magnetizable particles in solid pellet feed material before feeding the solid pellets into an injection molding machine. Other devices and processes are disclosed.

RESIN COMPOSITION FOR FORMING MAGNETIC MEMBER AND METHOD FOR MANUFACTURING MAGNETIC MEMBER

A resin composition for forming a magnetic member of the present invention, which is used for compression molding, includes a thermosetting resin, magnetic particles, and non-magnetic particles having a lower specific gravity and a smaller cumulative 50% particle diameter D.sub.50 than the magnetic particles, in which the resin composition for forming a magnetic member is solid at 25° C.

Slot sealing compound, slot seal, and method for producing a slot seal

The invention relates to a slot sealing compound (7) for an electrical machine that comprises at least one slot (2) with a slot opening (5) for receiving an electrical conductor arrangement (3). Said slot sealing compound (7) contains a magnetic filler material, particularly a soft-magnetic filler material, and a reactive resin mixture that comprises at least one resin component. In the interests of improving storage stability for said slot sealing compound (7), the components thereof are selected to be suitable for cationic polymerisation. A catalyst, provided to accelerate the cationic polymerisation of said reactive resin mixture, is also added to said slot sealing compound (7).

Manufacturing method of an annular insert molded article
11131565 · 2021-09-28 · ·

A method of manufacturing an annular insert molded article that suppresses contamination of a metal mold and generation of foreign matter without increase in material costs for an adhesive or contamination of a transfer jig, and has a high adhesion strength so that, when the annular insert molded article is attached to a rotating body, the adhesive does not peel off from the insert or remain as foreign matter in the rotating body. An annular insert molded article 1 is manufactured by injection molding in a state where a thermoset resin adhesive A is applied to a joining surface of an annular insert 2 attachable to a rotating body to an annular plastic 3 and then the annular insert 2 and the annular plastic 3 are placed in a metal mold.

COMPOSITE COMPONENT COMPRISING RING-SHAPED BONDED MAGNET AND METHOD OF MANUFACTURING THE SAME

The present invention relates to a composite component including a metal component having a substantially cylindrical shape or a substantially annular shape, and a ring-shaped bonded magnet disposed on the outer periphery of the metal component, the ring-shaped bonded magnet containing a thermoplastic resin, magnetic particles, and rubber particles.

Injection-Molded Physical Unclonable Function

A physical unclonable function is disclosed. A highly random distribution of magnetic particles within a thermoplastic polymer is created by magnetizing magnetizable particles in solid pellet feed material before feeding the solid pellets into an injection molding machine. Other devices and processes are disclosed.

INJECTION-MOLDED PHYSICAL UNCLONABLE FUNCTION

A physical unclonable function is disclosed. A highly random distribution of magnetic particles within a thermoplastic polymer is created by magnetizing magnetizable particles in solid pellet feed material before feeding the solid pellets into an injection molding machine. Other devices and processes are disclosed.

METHOD OF 3D PRINTING METAL PART
20210069969 · 2021-03-11 ·

A composition for use with a direct light processing apparatus and a method of manufacture. The composition includes a photopolymerizable resin of less than 200 mPa.Math.s measured at 25 degrees Celsius. The photopolymerizable resin cures when exposed to a light of a 405 nanometer wavelength or less. The composition also include a photoinitiator and a metallic powder. The metallic powder has a volumetric concentration greater than 50% of the total volume of the composition. The composition has a viscosity of less than 4000 mPa.Math.s.