摘要:
An object of this invention is to provide a cleaner composition that has a desirable cleaning property and is easily separable from pre-rinsing water even when cleaning an object produced by using a lead-free soldering flux; and a lead-free soldering flux removal system using a pre-rinsing method that can reduce the amount of waste fluid.The invention uses a cleaner composition for lead-free soldering flux, comprising (A) specific glycol ethers; (B) a specific polyoxyalkylene amine; and (C) a chelating agent that is at least one member selected from the group consisting of (c1) aliphatic hydroxycarboxylic acid chelating agents and (c2) (poly)phosphoric acid chelating agents.
摘要:
An object of this invention is to provide a cleaner composition that has a desirable cleaning property and is easily separable from pre-rinsing water even when cleaning an object produced by using a lead-free soldering flux; and a lead-free soldering flux removal system using a pre-rinsing method that can reduce the amount of waste fluid.The invention uses a cleaner composition for lead-free soldering flux, comprising (A) specific glycol ethers; (B) a specific polyoxyalkylene amine; and (C) a chelating agent that is at least one member selected from the group consisting of (c1) aliphatic hydroxycarboxylic acid chelating agents and (c2) (poly)phosphoric acid chelating agents.
摘要:
An object of this invention is to provide a cleaner for the removal of water-soluble, lead-free soldering flux, the cleaner capable of cleaning off, in a short period of time, water-soluble flux residues generated during soldering with lead-free solder using water-soluble flux, the cleaner further having excellent dissolution property as well as excellent narrow gap cleaning property. The cleaner for removing water-soluble, lead-free soldering flux of the present invention comprises 5 to 100 parts by weight of a glycol ether compound (A) per 100 parts by weight of water.
摘要:
An object of this invention is to provide a cleaner for the removal of water-soluble, lead-free soldering flux, the cleaner capable of cleaning off, in a short period of time, water-soluble flux residues generated during soldering with lead-free solder using water-soluble flux, the cleaner further having excellent dissolution property as well as excellent narrow gap cleaning property. The cleaner for removing water-soluble, lead-free soldering flux of the present invention comprises 5 to 100 parts by weight of a glycol ether compound (A) per 100 parts by weight of water.
摘要:
A die for extrusion molding includes an extrusion port configured to extrude a plastic composition, and a plastic flow channel configured to cause the supplied plastic composition to flow to the extrusion port. The plastic flow channel includes a supply flow channel, and an extrusion flow channel. The supply flow channel is configured to be supplied with the plastic composition. The extrusion flow channel has an upstream end coupled to the supply flow channel, and downstream end having the extrusion port. In the extrusion flow channel, a flow channel cross-sectional area perpendicular to the flow direction of the plastic composition in the extrusion flow channel gradually changes to the extrusion port, and an inner wall surface of a flow channel has a protruding surface protruding toward an inside of the flow channel in a cross section including an extrusion central axis and parallel to the extrusion central axis.
摘要:
A fixing device receives a recording material having a toner image and applies pressure and heat to fix the toner image. The fixing device includes a fixing member, a sliding member, a pressing member, and a heating member. The fixing member has a rotatable endless belt shape that includes an inner circumferential resin layer. The sliding member is pressed against the inner circumferential surface of the fixing member with a lubricant interposed between the sliding member and the inner circumferential surface. The sliding member has a resin coating layer and slides on the inner circumferential surface. The pressing member presses the recording material toward an outer circumferential surface of the fixing member. The heating member generates heat to heat the recording material. A surface hardness of the inner circumferential surface of the fixing member is smaller than a surface hardness of the sliding surface of the sliding member.
摘要:
A wick includes a porous body. The porous body includes a plurality of bubbles, a plurality of composite cells, and a plurality of communication holes. The plurality of bubbles has sizes in a range from 0.1 μm to 50 μm, both inclusive, in a cross section obtained when the porous body is cut. The plurality of composite cells is formed by spherical bubbles partially overlapping each other. Bubbles of pore sizes from 5 μm to 10 μm, both inclusive, are most present among the plurality of composite cells. The plurality of communication holes of 5 μm or smaller is between the plurality of bubbles.
摘要:
A disclosed loop heat pipe includes an evaporator configured to absorb heat from outside by a wall to evaporate a working fluid from a liquid phase gas phase; a condenser configured to condense a gas phase working fluid introduced from the evaporator into a liquid phase; an elastic wick configured to contact an inner wall of the evaporator by an elastic force from the elastic wick; and a wick deformation member configured to deform the elastic wick increase a contact pressure of the elastic wick against the inner wall of the evaporator.
摘要:
An LED unit includes: a plurality of LED modules each having an LED chip for generating ultraviolet ray provided in a package which has an opening formed on one surface and a lens formed to cover the opening of the package; a substrate-shaped base block where the LED modules are mounted in a first direction; and a heat radiation member where a plurality of the base blocks is provided in a second direction perpendicular to the first direction. The heat radiation member has a plurality of inclined surfaces where each of the base blocks is disposed. Further, one inclined surface and the other inclined surface of the heat radiation member are inclined to face each other in the second direction.
摘要:
A plating apparatus can perform a plating process on an entire surface of a substrate uniformly. A plating apparatus 20 includes a substrate holding/rotating device 110 configured to hold and rotate a substrate 2; a discharging device 21 configured to discharge a plating liquid toward the substrate 2 held on the substrate holding/rotating device 110; and a controller 160 configured to control the substrate holding/rotating device 110 and the discharging device 21. Further, the discharging device 21 includes a first nozzle 40 having a multiple number of discharge openings 41 arranged in a radial direction of the substrate 2 or having a discharge opening 42 extended in the radial direction of the substrate 2; and a second nozzle 45 having a discharge opening 46 configured to be positioned closer to a central portion of the substrate 2 than the discharge opening of the first nozzle 40.