摘要:
The present invention has an object to provide a surface-treated steel sheet which has highly balanced corrosion resistance and formability, and satisfies fundamental properties required mainly for steel sheets for automobile body, and a manufacturing method thereof. The surface-treated steel sheet of the invention is excellent in corrosion resistance and formability, comprising an amorphous inorganic film containing at least 5% magnesium and having a weight within a range of from 0.1 to 2.0 g/m2, formed on the surface of a zinc or zinc alloy plated steel sheet; wherein the inorganic film is soluble in an acidic solution and hardly soluble in a neutral or alkaline solution, and a manufacturing method thereof is provided. A zinc phosphate film may be provided between the galvanized steel sheet and the amorphous inorganic film. The inorganic film should preferably comprise one or more selected from the group consisting of phosphoric acid, phosphates, biphosphates, various condensed phosphoric acids, various condensed phosphates, organic phosphoric acid, and organic phosphates.
摘要翻译:本发明的目的是提供一种具有高度平衡的耐腐蚀性和成形性的表面处理钢板,并且满足主要用于汽车车身的钢板的基本特性及其制造方法。 本发明的表面处理钢板的耐腐蚀性和成形性优异,其特征在于,含有至少含有5%的镁,重量在0.1〜2.0g / m 2范围内的无定形无机膜, 锌或锌合金镀钢板; 其中无机膜可溶于酸性溶液,难溶于中性或碱性溶液,其制造方法。 可以在镀锌钢板和无定形无机膜之间设置磷酸锌膜。 无机膜应优选包含选自磷酸,磷酸盐,二磷酸盐,各种缩合磷酸,各种缩合磷酸盐,有机磷酸和有机磷酸盐中的一种或多种。
摘要:
The present invention provides phosphate-treated galvanized steel sheet excellent in corrosion resistance and paintability, including: a phosphate-treated galvanized steel sheet excellent in corrosion resistance and paintability, comprising a phosphate film in an amount of at least 0.5 g/m2, containing at least 2 wt. % of Mg, and at least 0.5 wt. % in total of Ni and/or Mn, with at least 4 wt. % in total of Mg and Ni and/or Mn, formed on a zinc or zinc alloy plated steel sheet; and a phosphate-treated galvanized steel sheet excellent in corrosion resistance and paintability, comprising a phosphate film in an amount of at least 0.3 g/m2, preferably at least 1 g/m2, containing at least 2 wt. % of Mg, and at least 0.5 wt. % in total of Ni and/or Mn, with at least 5 wt. % in total of Mg and Ni and/or Mn, formed on a zinc or zinc alloy plated steel sheet.
摘要翻译:本发明提供耐腐蚀性和可涂饰性优异的磷酸盐处理的镀锌钢板,包括:耐腐蚀性和可涂饰性优异的磷酸盐处理的镀锌钢板,其含有至少0.5g / m 2的磷酸盐膜, 至少2重量% %的Mg和至少0.5wt。 Ni和/或Mn总量的%,至少4wt。 在锌或锌合金镀覆钢板上形成的Mg和Ni和/或Mn的总和% 以及耐腐蚀性和可涂饰性优异的磷酸盐处理的镀锌钢板,其含有至少0.3g / m 2,优选至少1g / m 2的磷酸盐膜,其含有至少2wt。 %的Mg和至少0.5wt。 Ni和/或Mn总量的%,至少5wt。 在锌或锌合金镀覆钢板上形成的Mg和Ni和/或Mn的总和%。
摘要:
The present invention provides an inorganic-organic composite-treated zinc-plated steel sheet whose treated coatings do not contain any chromium and which is excellent in corrosion resistance after degreasing, coating adhesion and electrodeposition coating performance. The inorganic-organic composite-treated zinc-plated steel sheet, which is obtained by forming a zinc phosphate coating, in a coating weight of 0.3 to 5 g/m2, on the zinc-plated steel sheet surface and forming thereon a post-treatment coating, in a coating weight of 0.01 to 1 g/m2, by using a post-treatment composition containing at least one compound (A) selected from the group consisting of thiocarbonyl group-containing compounds, sulfide group-containing compounds and guanidyl group-containing compounds, an organic resin (B), a crosslinking agent (C) and an inorganic corrosion inhibitor (D).
摘要翻译:本发明提供了一种无机 - 有机复合处理的镀锌钢板,其经处理的涂层不含任何铬,并且在脱脂,涂层粘附性和电沉积涂布性能之后具有优异的耐腐蚀性。 通过在镀锌钢板表面上以0.3〜5g / m 2的涂布量形成磷酸锌被膜而得到的无机 - 有机复合处理镀锌钢板,并在其上形成 通过使用含有至少一种选自含硫代羰基的化合物,硫化物基团的化合物(A)的后处理组合物,涂覆重量为0.01〜1g / m 2的后处理涂布, 含有化合物和含胍基的化合物,有机树脂(B),交联剂(C)和无机缓蚀剂(D)。
摘要:
The present invention provides an inorganic-organic composite-treated zinc-plated steel sheet whose treated coatings do not contain any chromium and which is excellent in corrosion resistance after degreasing, coating adhesion and electrodeposition coating performance.The inorganic-organic composite-treated zinc-plated steel sheet, which is obtained by forming a zinc phosphate coating, in a coating weight of 0.3 to 5 g/m2, on the zinc-plated steel sheet surface and forming thereon a post-treatment coating, in a coating weight of 0.01 to 1 g/m2, by using a post-treatment composition containing at least one compound (A) selected from the group consisting of thiocarbonyl group-containing compounds, sulfide group-containing compounds and guanidyl group-containing compounds, an organic resin (B), a crosslinking agent (C) and an inorganic corrosion inhibitor (D).
摘要翻译:本发明提供了一种无机 - 有机复合处理的镀锌钢板,其经处理的涂层不含任何铬,并且在脱脂,涂层粘附性和电沉积涂布性能之后具有优异的耐腐蚀性。 通过在镀锌钢板上以0.3〜5g / m 2的涂布量形成磷酸锌被膜而得到的无机 - 有机复合处理的镀锌钢板 通过使用含有至少一种选自下组的化合物(A)的后处理组合物,其表面和其上形成后处理涂层,涂层重量为0.01至1g / m 2, 含硫基羰基化合物,含硫化物基化合物和含胍基的化合物,有机树脂(B),交联剂(C)和无机缓蚀剂(D)。
摘要:
A zinc phosphate treated galvanized steel sheet capable of securing sufficient white rust resistance and non-uniform dew condensation resistance without requiring a sealing chromate treatment has high white color and is excellent in color tone uniformity. The galvanized steel sheet has a zinc phosphate film containing at least 2% of Mg and 0.01 to 1% of at least one element selected from the group consisting of Ni, Co and Cu, and the adhesion value of the zinc phosphate film is at least 0.7 g/m2.
摘要翻译:能够在不需要密封铬酸盐处理的情况下确保足够的耐白锈和耐均匀的耐凝结性的磷酸锌处理的镀锌钢板具有高的白色,并且色调均匀性优异。 镀锌钢板具有含有至少2%的Mg和0.01〜1%的选自Ni,Co和Cu中的至少一种元素的磷酸锌膜,并且磷酸锌膜的粘附值至少为 0.7g / m 2。
摘要:
The present invention is intended to provide an inorganic-organic composite-treated zinc-plated steel sheet whose treated coatings do not contain any hazardous chromate and which is excellent in corrosion resistance after alkaline degreasing and coating adhesion. An inorganic-organic composite-treated zinc-plated steel sheet which has a zinc phosphate coating, in a coating weight of 0.3 to 5 g/m2, on the zinc-plated steel sheet surface and, thereon, a post-treatment coating, in a coating weight of 0.01 to 1 g/m2, containing an organic resin (A), a zirconium compound (B), an inorganic corrosion inhibitor (C) and an organic corrosion inhibitor (D).
摘要翻译:本发明旨在提供一种无机 - 有机复合处理的镀锌钢板,其经处理的涂层不含有任何有害的铬酸盐,并且在碱性脱脂和涂层粘合之后具有优异的耐腐蚀性。 一种无机 - 有机复合处理的镀锌钢板,其镀锌钢板表面上镀锌重量为0.3至5g / m 2,并在其上进行后处理 以含有有机树脂(A),锆化合物(B),无机腐蚀抑制剂(C)和有机缓蚀剂(D)的涂布量为0.01〜1g / m 2进行涂布。
摘要:
The present invention is intended to provide an inorganic-organic composite-treated zinc-plated steel sheet whose treated coatings do not contain any hazardous chromate and which is excellent in corrosion resistance after alkaline degreasing and coating adhesion.An inorganic-organic composite-treated zinc-plated steel sheet which has a zinc phosphate coating, in a coating weight of 0.3 to 5 g/m2, on the zinc-plated steel sheet surface and, thereon, a post-treatment coating, in a coating weight of 0.01 to 1 g/m2, containing an organic resin (A), a zirconium compound (B), an inorganic corrosion inhibitor (C) and an organic corrosion inhibitor (D).
摘要翻译:本发明旨在提供一种无机 - 有机复合处理的镀锌钢板,其经处理的涂层不含有任何有害的铬酸盐,并且在碱性脱脂和涂层粘合之后具有优异的耐腐蚀性。 一种无机 - 有机复合处理的镀锌钢板,其镀锌钢板表面上镀锌钢板表面上涂覆重量为0.3至5g / m 2的磷酸锌涂层 (A),锆化合物(B),无机腐蚀抑制剂(C)和无机防腐蚀剂(C)的涂布重量为0.01〜1g / m 2 有机腐蚀抑制剂(D)。
摘要:
The present invention provides a method of production of hot dip galvannealed steel sheet with excellent workability compared with the Sendzimir method or non-oxidizing furnace method and further with excellent powdering or slidability, that is, a method of production of hot dip galvannealed steel sheet with excellent workability, powdering, and slidability characterized by processing a slab containing, by mass %, C: 0.01 to 0.12%, Mn: 0.05 to 0.6%, Si: 0.002 to 0.1%, P: 0.05% or less, S: 0.03% or less, sol. Al: 0.005 to 0.1%, and N: 0.01% or less and having a balance of Fe and unavoidable impurities by hot rolling, pickling, cold rolling, then annealing at 650 to 900° C., cooling to 250 to 450° C., holding at said temperature range for 120 seconds or more, then cooling to room temperature, pickling, preplating Ni or Ni—Fe without intermediate temper rolling, heating by 5° C./sec or more down to 430 to 500° C., galvanizing in a galvanization bath, wiping, then heating by a rate of temperature rise of 20° C./sec or more up to 460 to 550° C., not providing any soaking time or holding for soaking for less than 5 seconds, then cooling by 3° C./sec or more, and final temper rolling by a 0.4 to 2% elongation rate.
摘要:
Exemplary embodiments of the present invention can provide a method for producing hot dip galvannealed steel sheet which exhibits high strength, high ductility, and a significant degree of alloying. Such exemplary method can be applied to, e.g., a pickled hot rolled steel sheet or an annealed and pickled cold rolled steel sheet containing between about 0.02% and about 0.2% C and between about 0.15% and about 2.5% Mn, and may include one or more procedures for rinsing the sheet, preplating the sheet with Ni, rapidly heating the sheet in a nonoxidizing atmosphere to a sheet temperature of about 430° C. to 500° C., then hot dip plating the sheet in a galvanizing bath containing between about 0.05% and about 0.2% Al, and then immediately heating the sheet rapidly for an alloying treatment. Such exemplary method can provide an improved alloying speed, improved plating appearance and better plating adhesion.
摘要:
Exemplary embodiments of the present invention can provide a galvanization method for hot-rolled steel sheet, cold-rolled steel sheet, or plating sheet of various compositions, which can avoid nonplating defects by using an Ni preplating procedure. For example, an exemplary galvanization method can be provided for pickled hot-rolled steel sheet or annealed cold-rolled steel sheet which is free from non-plating defects which includes cleaning the surface of the plating sheet, preplating it with Ni, rapidly heating the sheet in a nonoxidizing or reducing atmosphere to a sheet temperature of about 430 to 500° C. at a heating a rate of about 20° C./sec or more, and then hot dip plating the sheet in a galvanization bath. The exemplary amount of Ni preplating can be determined based on the plate type and amount of Si in the sheet steel to produce a hot dip galvanization that is free from non-plating defects.