Plated steel sheet, composite resin-coated steel sheet, and manufacturing method of the same
A technology for coating composition and composite resin, which is applied in the field of plated steel sheet, steel sheet coated with combined resin, and the manufacturing field of the steel sheet, and can solve the problem of poor fuel resistance and corrosion resistance, increase of coating thickness, generation of dust, etc. problem, to achieve the effect of high fuel resistance and corrosion resistance, and high seam weldability
Active Publication Date: 2018-04-06
浦项股份有限公司
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Problems solved by technology
However, this technique increases coating thickness, manufacturing cost, and difficulties in processing, and causes dust and defects during handling
[0006] Although techniques for coating steel sheets using relatively expensive hot-dip Zn-Sn alloys have been commercialized, these techniques incur high costs and result in parts formed by deep drawing methods having poor fuel resistance due to the absence of sacrificial protection for corrosion and poor corrosion resistance
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[0030] Exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings.
[0031] However, this disclosure may be illustrated in many different forms and should not be construed as limited to the specific embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
[0032] In the drawings, the shapes and dimensions of elements may be exaggerated for clarity, and the same reference numerals will be used throughout to designate the same or like elements.
[0033] Exemplary embodiments of the present disclosure provide a plated steel sheet, a composite resin-coated steel sheet that is relatively inexpensive and has a high degree of weldability and a high degree of fuel resistance, and a method of manufacturing the steel sheet.
[0034] Exemplary embodiments of the present disclosur...
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Abstract
The invention provides a plating steel sheet with a pit fraction of 15% or less, plating amount of 20g / m2-60g / m2, and alloying degree of 7%-15%, a composite resin coating steel sheet made from a coating layer containing polyurethane-acrylic acid dendritic polymer resin, and method for manufacturing the plating steel and the composite resin coating steel sheet. The plating steel and the composite resin coating steel sheet are high in fuel-resistance performance, corrosion resistance performance, and weldability.
Description
[0001] Cross References to Related Applications [0002] This application claims the benefit of Korean Patent Application No. 10-2014-0173734 filed with the Korean Intellectual Property Office on December 5, 2014, the contents of which are incorporated herein by reference. technical field [0003] The present disclosure relates to a plated steel sheet, a steel sheet coated with a composite resin, and a manufacturing method thereof. Background technique [0004] Examples of steel sheets widely used to form automobile fuel tanks and the like include hot-dip Al—Si plated steel sheets, Zn—Ni electrogalvanized steel sheets, and Zn—Sn electrogalvanized steel sheets. Such coated steel sheets are of high quality but are expensive to manufacture because the metals used for the coated steel sheets are relatively expensive. [0005] In addition, a steel sheet that is galvanized and then mainly coated with a polymer resin has high resistance to fuels and corrosion resistance, but has p...
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IPC IPC(8): C09D187/00C09D7/61
CPCC23C2/14C23C2/20C23C2/28C23C22/00C23C28/00
Inventor 赵斗焕郑云太郑暎勋
Owner 浦项股份有限公司