Patent
Formation of heating surface on aluminum material
Reads0
Chats0
TLDR
In this article, the authors proposed a method to form a heating surface with superior characteristics by chemically treating an Al material with an acid-contg. treating soln. in succession.Abstract:
PURPOSE:To form a heating surface with superior characteristics by chemically treating an Al material with an acid-contg. treating soln. and with a specified treating soln. in succession. CONSTITUTION:An Al material is chemically treated with an acid-contg. treating soln. to form a chemical film such as a chromate film, a zirconium film or a phosphate film beforehand. Next, the material is chemically treated with a treating soln. of 6-12pH contg. silicate such as sodium silicate or potassium silicate at 0.0005- 1.0mol/l concn., tannic acid or its salt at 0.001-1.0mol/l concn. or silica sol at 0.0001-40% concn. as SiO2 for 1-60min to form a rough heating surface film with superior characteristics.read more
Citations
More filters
Patent
Frame for laying wooden bricks
TL;DR: In this article, a road can be paved with water-permeable, expansible and contractible wooden bricks, which are held in the retainer sections of a bridge.
Patent
Precoated metal sheet superior in press formability, and manufacturing method therefor
TL;DR: In this article, a precoated metal sheet superior in press formability has a chemical conversion coating layer on one side or both sides, which contains, at least either of tannin or tannic acid, a silane coupling agent, and fine silica powders, altogether as solid contents.
Patent
Surface treated aluminum material and aluminum formed body
Keitaro Yamaguchi,恵太郎 山口 +1 more
TL;DR: The porosity of the anodic oxide coating is <=30% as discussed by the authors, which is the smallest porosity known to exist for an anodic-coated surface treatment of an aluminum material.
Patent
Chromium-free silicon passivation solution for passivating aluminum or aluminum alloy surface as well as preparation and using methods
TL;DR: In this article, a chromium-free silicon passivation solution for passivating an aluminum or aluminum alloy surface is described, which is free of chromium, fluorine or other toxic substances.
Patent
Method for controlling meandering of rolled stock
TL;DR: In this paper, the authors proposed a method to prevent a steel sheet from meandering by detecting respective meandering amounts in the inlet and outlet sides of each rolling mill, operating a difference between meaving amounts as a meandering amount deviation, and adjusting respective leveling or roll bending differences so that the deviation becomes zero.