摘要:
A process for soldering a metal substrate coated with an electrodeposited non-peelable coating comprising 35-65 wt parts of methacryl ester, 10-40 wt parts of acrylonitrile, 2-15 wt parts of methacrylic acid, 3-10 wt parts of acrylamide and/or vinyl acetate, in 100 parts of resin.
摘要:
A water dispersion varnish suitable for electrodepositon is prepared by a process comprising reacting:The reaction product ofA. a polyesterimide having a carboxyl group in its chain or at the terminus of the chain and having an ester group and an imide group in its repeating unit or a polyesteramideimide having a carboxyl group in its chain or at the terminus of the chain and having an ester group, an imide group and an amide group in its repeating unit andB. an organic compound having at least two hydroxyl groups withC. a polybasic acid or its anhydride in the presence or absence of a solvent yielding a modified polyesterimide or polyesteramideimide;Dissolving said modified polyesterimide or polyesteramideimide in an organic solvent;Dispersing said modified polyesterimide or polyesteramideimide solution in an aqueous solution containing a surfactant and a volatile base; and removing the volatile components.
摘要:
Acrylonitrile, an acrylic ester such as ethyl acrylate, n-propyl acrylate, n-butyl acrylate, isopropyl acrylate, n-hexyl acrylate and the like are copolymerized with a cross-linkable monomer, an unsaturated organic acid and a vinyl monomer in a one-step or two-step operation to prepare a water-dispersion varnish for electrodeposition which has excellent dispersion stability and gives a coated film having excellent scrape abrasion resistance and high cut-through temperature.
摘要:
A fixing device includes a heater, a fixing rotator, a pressure rotator to press against the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium is conveyed, a moving device to move the pressure rotator in directions in which the pressure rotator comes into contact with and separates from the fixing rotator, a thermal expansion amount predictor to predict an amount of thermal expansion of the fixing rotator while the recording medium is conveyed, and a nip width adjuster to control a moving distance of the pressure rotator moved by the moving device toward the fixing rotator, depending on the amount of thermal expansion of the fixing rotator predicted by the thermal expansion amount predictor, so as to adjust a width of the fixing nip to maintain a substantially constant width of the fixing nip.
摘要:
A fixing device includes a heating rotator and a pressure rotator pressed against the heating rotator to form a fixing nip therebetween, through which a recording medium bearing a toner image is conveyed. A plurality of first recesses is scattered on a circumferential face of the heating rotator. A plurality of second recesses is scattered on a circumferential face of the pressure rotator. Each of the second recesses is greater than each of the first recesses.
摘要:
The present invention is an electrostatic chuck including a ceramic base body and an adsorption electrode provided inside of or on the lower surface of the ceramic base body and having a portion where a Mn content is 1×10−4% by mass or less in a region from the upper surface of the ceramic base body to the adsorption electrode.
摘要:
According to one embodiment, a method is disclosed for manufacturing a semiconductor light emitting device. The method can include forming a nitride semiconductor layer including a light emitting layer on a first substrate having an unevenness, bonding the nitride layer to a second substrate, and separating the first substrate from the nitride layer by irradiating the nitride layer with light. The forming the nitride layer includes leaving a cavity in a space inside a depression of the unevenness while forming a thin film on the depression. The film includes a same material as part of the nitride layer. The separating includes causing the film to absorb part of the light so that intensity of the light applied to a portion of the nitride layer facing the depression is made lower than intensity of the light applied to a portion facing a protrusion of the unevenness.
摘要:
A polishing agent which comprises a composition containing an inorganic acid, an amino acid, a protective film-forming agent, an abrasive, an oxidizing agent, an organic acid and water, adjusted to a pH of 1.5-4, wherein the amount of potassium hydroxide required to raise the pH of the composition without the organic acid to 4 is at least 0.10 mol with respect to 1 kg of the composition without the organic acid, and the organic acid contains at least two carboxyl groups, wherein the logarithm of the inverse of the first acid dissociation constant (pKa1) is no greater than 3.
摘要:
A fixing device includes a fixing rotary body, an opposed member opposing the fixing rotary body to form a nipping portion, and a heater to heat the fixing rotary body. The heater includes heat generators arranged in a width direction of a recording medium and separately supplied with power. When an unfixed image on the medium has an image area and a non-image area, power supplied to each of the heat generators is controlled so that, of the heat generators, a first heat generator corresponding to the image area becomes a higher temperature and second heat generators corresponding to the non-image area becomes a lower temperature. When the second heat generators are adjacent to each other, power supplied to one of the second heat generators closer to the image area is set to be greater than power supplied to another of the second heat generators farther from the image area.
摘要:
A high pressure fuel pipe construction for an internal combustion engine, such as a direct injection engine. A conduit for the fuel is open at each end and a ball having a throughbore is slidably positioned over one end of the conduit. A reinforcing sleeve is positioned inside the end of the conduit so that the sleeve extends entirely through the ball. The sleeve, ball and the end of the conduit are then brazed together to attach the ball and conduit together. A double chamfer is provided at one end of the ball throughbore to facilitate inspection of the brazing quality. Additionally, a loop is formed in the conduit and a dampener is attached to the loop.