摘要:
The present invention provides a tin-based two-layered plating film exhibiting suppressed whisker growth comprising a lower layer of a tin plating film or tin alloy plating film comprising 5% by weight or less of at least one metal selected from the group consisting of cobalt, copper, bismuth, silver, and indium, and 95% by weight or more of tin, and an upper layer of a tin plating film or tin alloy plating film comprising 5% by weight or less of at least one metal selected from the group consisting of cobalt, copper, bismuth, silver and indium, and 95% by weight or more of tin. The tin-based plating film of the present invention is a lead-free tin plating film or tin alloy plating film, exhibits suppressed whisker growth over an extended period, and can further be formed relatively easily without complicated steps.
摘要:
The object of the present invention is to provide an electrophotography photosensitive body substrate, photosensitive body, and electrophotography device used in a contact charging process that can prevent the occurrence of minor insulation damage of around diameter 0.1-0.5 mm. In an electrophotography photosensitive body substrate having a sealed aluminum anodic oxidation film on its surface, the anodic oxidation film is sealed by a sealing agent in which an anion surface active agent is beneficially added.
摘要:
An electrophotographic photoconductor and method for producing same, the electrophotographic photoconductor including an electroconductive substrate; and a photosensitive film laminated on said electroconductive substrate, wherein the electroconductive substrate comprises an aluminum substrate which has an anodic oxidation film on at least one surface thereof and which has been treated with a sealing agent mixture including an additive selected from the group consisting of a phosphate ester surfactant, a naphthalene sulfonate formaldehyde condensate, and a bisphenol A sulfonate formaldehyde condensate and a sealing agent.
摘要:
A method for making a composite aluminum article comprises the steps of electrochemically or chemically adsorbing fine particles of a polytetrafluoroethylene to the surface of a hard anodic oxide film of an aluminum material or an aluminum alloy material, and drying the aluminum material or the aluminum alloy material. Thereafter, the aluminum material or the aluminum alloy material and an opposite member which slides along the aluminum material or the aluminum alloy material are rubbed together, and a lubricating film is thereby formed.
摘要:
A method for making a composite aluminum article comprises the steps of electrochemically or chemically adsorbing fine particles of a polytetrafluoroethylene to the surface of a hard anodic oxide film of an aluminum material or an aluminum alloy material, and drying the aluminum material or the aluminum alloy material. Thereafter, the aluminum material or the aluminum alloy material and an opposite member which slides along the aluminum material or the aluminum alloy material are rubbed together, and a lubricating film is thereby formed.
摘要:
A substrate for an electrophotographic photoconductor having an anodic oxidation film on the surface is subjected to two-step sealing treatment in which the substrate is sealing treated with nickel fluoride as a sealing agent, and then with nickel acetate as a sealing agent. Therefore, an electrophotographic photoconductor using the substrate for an electrophotographic photoconductor is small in charge potential difference between the first turn and the second turn and after, and does not generate a fogged image defect or the like even without preliminary charging before printing.
摘要:
Aluminum alloy castings and aluminum alloy die castings are treated in the process comprising the steps of chemically polishing the castings, processing the chemically polished castings by barreling and/or by blasting and subjecting successively the castings to degreasing, anodic oxidation, dyeing and sealing.