Pre-coated aluminum alloy sheet and method for manufacturing stamped product
An aluminum alloy plate, pre-coating technology, applied to metal layered products, chemical instruments and methods, coatings, etc., can solve problems such as difficulty in lubricating oil removal, poor production efficiency, and increased manufacturing costs, and achieve good results Operability, anti-swelling, and excellent lubricity effects
Inactive Publication Date: 2016-08-31
FURUKAWA SKY ALUMINUM CORP
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- Description
- Claims
- Application Information
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Problems solved by technology
However, the increase in viscosity or the use of an oil-based agent with a high lubricating effect makes it difficult to remove lubricating oil after molding
As a result, it is necessary to strengthen the cleaning in the next process, thereby increasing the manufacturing cost and prolonging the cleaning time, so that the production efficiency is deteriorated
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0078] This example is an example in which a plurality of samples (precoated aluminum alloy sheets) corresponding to the examples and comparative examples were produced, and press-formed products were produced using these precoated aluminum alloy sheets.
[0079] Such as figure 1 As shown, the precoated aluminum alloy plate 1 of this embodiment includes an aluminum plate 2 and a lubricating film 3 covering at least one surface of the aluminum plate 2 . The lubricating film 3 is directly formed on the aluminum plate 2 without chemically synthesizing the film or the like. That is, the lubricating film 3 is laminated and formed on the aluminum plate 2 in direct contact.
[0080] The lubricating film 3 contains specific acrylic resins, urethane resins, and waxes in predetermined proportions.
[0081] The precoated aluminum alloy plate 1 is used for press forming, and lubricating oil is supplied to the precoated aluminum alloy plate 1 during press forming. Moreover, the lubricat...
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Abstract
The present invention is: a pre-coated aluminum alloy sheet (1) comprising an aluminum sheet (2) and a lubrication film (3) for coating at least one of the surfaces thereof, the pre-coated aluminum alloy sheet (1) being used for supplying lubricating oil during press molding; and a method for manufacturing a press-molded article using same. The lubrication film (3) is formed directly on the aluminum sheet (2) without an interposed chemical conversion coating. The lubrication film (3) contains a predetermined acrylic resin, a predetermined urethane resin, and a predetermined wax in a predetermined blend ratio. The lubrication film (3) can be removed from the aluminum plate by contact with an aqueous alkali solution having a pH of 8 or higher.
Description
technical field [0001] The present invention relates to a precoated aluminum alloy sheet for supplying lubricating oil during press forming, and a method for manufacturing a press-formed product formed by press forming the aluminum alloy plate. Background technique [0002] From the standpoint of miniaturization, weight reduction, and high designability, the material of electronic equipment casings is changing from steel to aluminum alloy. In particular, the casings of most digital cameras are made of aluminum alloy casings. The manufacturing process of this kind of electronic equipment casing is: firstly, lubricating oil is coated on the aluminum alloy plate, after stamping and forming, after solvent cleaning, alkali cleaning or pickling, anti-corrosion passivation treatment is carried out. [0003] Recently, due to the miniaturization, weight reduction, high designability, and complex shape of electronic equipment, not only high-strength aluminum alloys but also high-form...
Claims
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IPC IPC(8): B32B15/082B21D22/20B32B15/095C23C26/00C09D123/06C09D133/00C09D175/04C09D191/06C10M107/04C10M109/00C10M145/14C10M149/14C10M169/04C10N20/00C10N20/04C10N20/06C10N30/00C10N30/06C10N40/24C10N50/02
CPCB21D22/22C08L75/04C09D133/04C09D133/10C09D191/06C10M177/00C10N2050/025C10N2050/14C08L23/06
Inventor 初野圭一郎
Owner FURUKAWA SKY ALUMINUM CORP