摘要:
The present invention aims at provision of an organic composite galvanized steel sheet having its characteristics such as corrosion resistance and workability improved. Thus, the present invention provides an organic composite galvanized steel sheet that is formed by sequentially depositing on a surface of a steel sheet a galvanization layer, a zinc phosphate layer containing Mg, and an organic layer, and is characterized in that a value of Mg/P (weight ratio) in the zinc phosphate layer is 0.15 or larger and an amount of Mg contained in the zinc phosphate layer is 20 mg/m2 or more. Preferably, the zinc phosphate layer contains one or two or more of Ni, Mn, Co, Fe, Cu, Al, and Ca. In one preferred embodiment, the organic layer is formed as a composite layer containing an organic resin and one or two kinds or more of powder or colloid selected from SiO2, Al2O3, MgO, Fe2O3, Fe3O4, ZrO2, TiO2, and SnO2.
摘要翻译:本发明的目的在于提供一种具有耐腐蚀性,加工性等特性的有机复合镀锌钢板。 因此,本发明提供一种有机复合镀锌钢板,其通过在钢板的表面依次沉积镀锌层,含有Mg的磷酸锌层和有机层而形成,其特征在于,Mg 磷酸锌层中的/ P(重量比)为0.15以上,磷酸锌层中所含的Mg的量为20mg / m 2以上。 优选地,磷酸锌层含有Ni,Mn,Co,Fe,Cu,Al和Ca中的一种或两种以上。 在一个优选实施方案中,有机层形成为含有有机树脂和选自SiO 2,Al 2 O 3,MgO,Fe 2 O 3,Fe 3 O 4,ZrO 2,TiO 2和SnO 2中的一种或两种以上的粉末或胶体的复合层。
摘要:
The aim of the present invention is to provide a phosphate treated zinc coated steel sheet with excellent workability. A steel sheet coated with a zinc based alloy has a phosphate treated coating on the surface thereof. The phosphate treated coating comprises mainly granulated crystals, specifically, crystals in which the average ratio of the major axis to the minor axis is not less than 1.00 and not more than 2.90. Moreover, the method for producing the phosphate treated coating uses a phosphate treatment solution in which the amount of Mg ions is ≧6 g/l and the amount of Zn ions is ≧0.5 g/l, or a phosphate treatment solution in which the amount of Mg ions is ≧10 g/l, the amount of Zn ions is 0≦ and
摘要翻译:本发明的目的是提供一种具有优异的可加工性的磷酸盐处理的镀锌钢板。 涂有锌基合金的钢板在其表面上具有磷酸盐处理的涂层。 磷酸盐处理的涂层主要包括粒状晶体,特别是长轴与短轴的平均比不小于1.00且不大于2.90的晶体。 此外,磷酸盐处理被膜的制造方法使用磷酸盐处理溶液,其中Mg离子的量≥6g/ l,Zn离子的量= 0.5g / l,或磷酸盐处理溶液,其中 Mg离子的量≥10g/ l,Zn离子的量为0 <=和<0.5g / l,硝酸离子的量> 40g / l。 此外,磷酸盐处理的镀锌钢板也具有优异的耐腐蚀性,因为磷酸盐处理的涂层中的Mg的量不小于10mg / m 2,并且涂覆量被控制在0.5至3.0时具有优异的焊接性 g / m 2。
摘要:
A galvanized steel plate for use in a vehicle body, having corrosion resistance and workability that are well-balanced and being suitable for outer plates of a vehicle body is provided. The plate includes a galvanized steel plate having a zinc coating plated on both surfaces thereof; a zinc phosphate coating layer formed on one of the surfaces of the plate that serves as an outer surface of a vehicle body; and a phosphate-containing composite coating formed on the other of the surfaces that serves as an inner surface of a vehicle body, the composite coating being composed of a zinc phosphate coating layer and a phosphate coating containing Mg. The phosphate-containing composite coating preferably contains 2 wt % or more of Mg, and is preferably applied in an amount greater than or equal to 0.5 g/m2.
摘要翻译:本发明提供一种车体用镀锌钢板,其耐腐蚀性和加工性良好平衡,适用于车身外板。 该板包括在其两个表面上镀锌涂层的镀锌钢板; 形成在作为车身的外表面的板的一个表面上的磷酸锌被覆层; 以及在作为车身内表面的另一个表面上形成的含磷酸盐复合涂层,所述复合涂层由磷酸锌被覆层和含Mg的磷酸盐涂层构成。 含磷酸盐复合涂层优选含有2重量%以上的Mg,优选以0.5g / m 2以上的量进行涂布。