摘要:
A solder bath contains a solder bath main body that contains solder, and a heating member that heats the solder. The heating member is mounted on outer surfaces of a bottom and sides of the solder bath main body. The heating member contains a thermal diffusion member that is made of stainless steel, which is mounted on the outer surfaces of a bottom and sides of the solder bath main body, a porous heat insulator that is mounted on and attached to the thermal diffusion member, and a heating element that is buried in the porous heat insulator. The heating element is also away from the thermal diffusion member.
摘要:
A multi-layer sliding part is prepared by a process including mixing 1 - 50 parts by volume of a Cu-plated solid lubricant powder with 100 parts by volume of a Cu-based alloy powder comprising 5 - 20 mass % of Sn and a remainder of Cu to form a mixed powder, sintering the mixed powder in a reducing atmosphere at 750 - 850°C to form a sintered mass, pulverizing the sintered mass to form a powder, dispersing the powder formed by pulverizing on a steel backing plate, and sintering the dispersed powder to bond grains of the dispersed powder to each other and to the backing plate.
摘要:
A multi-layer sliding part has a Cu-plated solid lubricant uniformly dispersed in the matrix of a sintered bronze powder. The sintered alloy layer is densified by pressing, and the surface of the bearing alloy layer is coated with a resin having sliding properties. In a method of manufacturing a multi-layer sliding part, a mixture of a bronze powder and a Cu-plated solid lubricant are initially sintered, and the initially sintered mass is pulverized. The pulverized powder is sintered on both sides of a backing plate. After sintering of the pulverized powder on both sides of the backing plate to form bearing alloy layers, the bearing alloy layers are pressed and densified. After densification, the bearing alloy layers are annealed, again pressed, and then coated with a resin having sliding properties.
摘要:
An apparatus (1) coats flux on a projection of a part mounted on a printed circuit board (P). The projection passes through the printed circuit board (P) and projects from the printed circuit board (P). The apparatus (1) contains a printed-circuit-board-holding member that holds the printed circuit board, a nozzle (3) having an opening through which the projection comes in the nozzle (3) and comes off the nozzle (3), a nozzle-moving member (4) that moves the nozzle (3) to a predetermined position, and a flux-supplying member (9a) that supplies the flux to the nozzle (3). The flux is coated on at least the projection by dipping the projection in the flux contained in the nozzle (3) through the opening.
摘要:
A lead-free journal bearing includes a cylindrical ferrous backing and a bearing alloy layer comprising a bearing alloy powder consisting essentially of 7 - 13 mass percent of Sn, 0.7 - 2 mass percent of Ag, optionally at most 0.5 mass percent of molybdenum disulfide, optionally at most 2 mass percent of graphite, and a remainder of Cu sintered to an inner surface of the backing. The bearing is particularly suitable for use in construction equipment.
摘要:
A multi-layer sliding part has a Cu-plated solid lubricant uniformly dispersed in the matrix of a sintered bronze powder. The sintered alloy layer is densified by pressing, and the surface of the bearing alloy layer is coated with a resin having sliding properties. In a method of manufacturing a multi-layer sliding part, a mixture of a bronze powder and a Cu-plated solid lubricant are initially sintered, and the initially sintered mass is pulverized. The pulverized powder is sintered on both sides of a backing plate. After sintering of the pulverized powder on both sides of the backing plate to form bearing alloy layers, the bearing alloy layers are pressed and densified. After densification, the bearing alloy layers are annealed, again pressed, and then coated with a resin having sliding properties.