B22F3/004

Sintered bearing and method for manufacturing sintered bearing

A sintered bearing is made of a sintered compact containing nickel silver (Cu—Ni—Zn) as a base. In the sintered bearing, P is not added in the sintered compact. Alternatively, a content of P in the sintered compact is less than 0.05 mass % in terms of mass ratio to a total mass. Consequently, crystal grains constituting the sintered compact can be micronized. In particular, in the sintered bearing, an average crystal particle diameter of the crystal grains constituting the sintered compact is 20 μm or less. Consequently, the mechanical strength and the vibration resisting properties can be improved, and the rotation shaft can be prevented from being damaged.

Method for Determining a Parameter of a Material and Pressing Tool for the Production of a Green Compact
20220339699 · 2022-10-27 ·

At least one parameter of a material is determined with a pressing tool usable for producing a green compact and a pressing tool for producing at least one green compact. The pressing tool has at least one planar surface which is formed at least in part by a die which, starting from the surface, extends along an axial direction and, on the surface, has a cavity which extends from the surface along the axial direction and has an inner circumferential surface; wherein the cavity forms a receptacle for a powdery material which can be pressed in the cavity by at least one punch plunging into the cavity along the axial direction to form the green compact.

SPHEROIDAL TUNGSTEN CARBIDE PARTICLES

The disclosure relates generally to tungsten carbide particles, and more particularly to textured spheroidal tungsten carbides, composites formed thereof, and methods of applying the composites. In one aspect, a powder blend comprises fused tungsten carbide particles. The fused tungsten carbide particles have a spheroidal or substantially spherical shape having ratio of a first length along a major axis to second length along a minor axis that is 1.20 or lower. The fused tungsten carbide particles have a surface that is textured to have a grain boundary area fraction greater than 5.0%.

ISOSTATICALLY PRESSED PRODUCT FOR USE IN HANDLING OF MOLTEN METAL AND METHOD FOR PRODUCTION
20220332010 · 2022-10-20 ·

An isostatically pressed product (10, 11, 12, 13, 14) for use in handling of molten metals comprising: a body (20) made from a first refractory composition (50); the body (20) comprises a surface (21); and at least one liner section (30.1) applied partially onto the surface (21) of the body (20); the at least one liner section (30.1) is made from a second refractory composition (51); the at least one liner section (30.1, 30.2) forming the liner (30) of the body (20); whereas in at least one cross-section of the product, the surface (21) of the body (20) in a region covered with the liner (30), comprises at least one convex (41) and at least two concave (42) sections and a method for manufacturing an isostatically pressed product (10, 11, 12, 13, 14) for use in handling of molten metals.

Facility for the manufacture of objects from material powder with provision of the powder in line form
11472110 · 2022-10-18 · ·

The invention relates to a facility (1) for the manufacture of three-dimensional objects from material powder, through layerwise consolidation of said material powder present on a process surface (42) in such places of the particular layer (40) that correspond, in accordance with geometrical data, to the object about to be manufactured, wherein the facility (1) comprises a process floor (46) surrounding the process surface and a powder feed device (10) to feed, provide and distribute the powder on the process surface (42), wherein the powder feed device (10) comprises: a conveying element (12) for feeding powder into the powder feed device (10), a reservoir (14), into which the at least one conveying element (12) feeds the powder, a process conveying element (16), which can act on powder in the reservoir (14), in order to provide this in dosed quantity on the process floor (46) adjacent to the process surface (42), a process pusher (18) for distributing the powder provided adjacent to the process surface (42) over the process surface (42), wherein the process conveying element (16) is designed, such that the powder adjacent to the process surface (42) can be provided in the form of a line.

Facility for the manufacture of objects from material powder with provision of the powder in line form
11472110 · 2022-10-18 · ·

The invention relates to a facility (1) for the manufacture of three-dimensional objects from material powder, through layerwise consolidation of said material powder present on a process surface (42) in such places of the particular layer (40) that correspond, in accordance with geometrical data, to the object about to be manufactured, wherein the facility (1) comprises a process floor (46) surrounding the process surface and a powder feed device (10) to feed, provide and distribute the powder on the process surface (42), wherein the powder feed device (10) comprises: a conveying element (12) for feeding powder into the powder feed device (10), a reservoir (14), into which the at least one conveying element (12) feeds the powder, a process conveying element (16), which can act on powder in the reservoir (14), in order to provide this in dosed quantity on the process floor (46) adjacent to the process surface (42), a process pusher (18) for distributing the powder provided adjacent to the process surface (42) over the process surface (42), wherein the process conveying element (16) is designed, such that the powder adjacent to the process surface (42) can be provided in the form of a line.

Methods of making metal bond abrasive articles and metal bond abrasive articles

Methods of making metal bond abrasive articles via powder bed jetting are disclosed. Metal bond abrasive articles prepared by the method include abrasive articles having arcuate or tortuous cooling channels, abrasive segments, abrasive wheels, and rotary dental tools.

Aluminum alloy, manufacturing method of laminated molding and laminated molding

The present disclosure provides an aluminum alloy to be used in laminate molding containing Si, Fe, Mn and inevitable impurities, in which α-phase Al—Si—Fe intermetallic compound is present in the aluminum alloy. In addition, a manufacturing method of a laminated molding is provided which laminate molds using powder of this aluminum alloy. Further, a laminate molding of this aluminum alloy is provided.

ULTRA THIN TWO PHASE HEAT EXCHANGERS WITH STRUCTURAL WICK
20230060439 · 2023-03-02 ·

Methods and system are provided for a heat exchanger. In one example, a system, comprises a mobile electronic device comprising a front cover and a rear cover, a heat exchanger arranged between the front cover and the rear cover, the heat exchanger comprising a fluid chamber arranged between an inner surface of a first plate and an inner surface of a second plate, and a wick material arranged within the fluid chamber, the wick material comprising a sintered material configured to allow a plurality of fluid passages to extend therethrough.

METHOD FOR CONTINUOUS MANUFACTURING OF PERMANENT MAGNETS
20230062147 · 2023-03-02 · ·

A method for continuous manufacture of permanent magnets. A material sheet is formed into an open tube, having a lengthwise opening. Magnetic powder may be poured into the lengthwise opening on a continuous basis. The tube opening is then formed closed and sealed. The magnetic powder is magnetically pre-aligned by subjecting it to a first magnetic field. The tube containing the powder may be compressed into a desired shape, forming an elongated permanent magnet. After compression, the elongated magnet is magnetized by a second magnetic field in two-step process, wherein the elongated permanent magnet is subjected to a magnetic field from first magnetizing coil that is pulsed with a first electric current in a first direction, followed by a second magnetizing coil being pulsed with a second magnetizing electric current in a second direction. The elongated magnet may be formed into any arbitrary shape, such as a ring or coil.