JPH03183797A - Galvanized steel sheet excellent in press formability and chemical conversion treatability - Google Patents
Galvanized steel sheet excellent in press formability and chemical conversion treatabilityInfo
- Publication number
- JPH03183797A JPH03183797A JP1320450A JP32045089A JPH03183797A JP H03183797 A JPH03183797 A JP H03183797A JP 1320450 A JP1320450 A JP 1320450A JP 32045089 A JP32045089 A JP 32045089A JP H03183797 A JPH03183797 A JP H03183797A
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- galvanized steel
- chemical conversion
- zinc
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000126 substance Substances 0.000 title claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 21
- 229910001335 Galvanized steel Inorganic materials 0.000 title abstract description 20
- 239000008397 galvanized steel Substances 0.000 title abstract description 20
- 239000011701 zinc Substances 0.000 claims description 36
- 229910052725 zinc Inorganic materials 0.000 claims description 30
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 16
- 238000000034 method Methods 0.000 abstract description 12
- 239000011248 coating agent Substances 0.000 abstract description 10
- 238000000576 coating method Methods 0.000 abstract description 10
- 239000010960 cold rolled steel Substances 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 abstract description 3
- 238000007740 vapor deposition Methods 0.000 abstract description 3
- 238000007747 plating Methods 0.000 description 16
- 239000010410 layer Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 5
- 229910052804 chromium Inorganic materials 0.000 description 5
- 239000011651 chromium Substances 0.000 description 5
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 5
- 229910001297 Zn alloy Inorganic materials 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000007739 conversion coating Methods 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229920000620 organic polymer Polymers 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- FMRLDPWIRHBCCC-UHFFFAOYSA-L Zinc carbonate Chemical compound [Zn+2].[O-]C([O-])=O FMRLDPWIRHBCCC-UHFFFAOYSA-L 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 229910052745 lead Inorganic materials 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000012286 potassium permanganate Substances 0.000 description 2
- 239000011667 zinc carbonate Substances 0.000 description 2
- 229910000010 zinc carbonate Inorganic materials 0.000 description 2
- 235000004416 zinc carbonate Nutrition 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- BKCGDVXAGFLTDN-UHFFFAOYSA-N [F].P(O)(O)(O)=O.[Zn] Chemical compound [F].P(O)(O)(O)=O.[Zn] BKCGDVXAGFLTDN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、プレス性、化成処理性に優れた亜鉛系めっき
鋼板に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a zinc-based plated steel sheet with excellent pressability and chemical conversion treatment properties.
亜鉛めっき鋼板のプレス性を向上させる方法として、例
えば特開昭６２−１８５８８３号公報のごとくめっき鋼
板表面に電解クロメート処理を施しＣｒ、 Ｏ。As a method of improving the pressability of a galvanized steel sheet, for example, as disclosed in JP-A-62-185883, the surface of the galvanized steel sheet is subjected to electrolytic chromate treatment to contain Cr and O.
の酸化物皮膜を生成せしめる方法や、特開昭６２−１９
２５９７号公報のごとく鉄亜鉛合金めっきを施す方法等
の亜鉛系めっき鋼板上に硬い皮膜を形威し。A method for producing an oxide film of
A hard film is formed on a zinc-based plated steel sheet, such as a method of applying iron-zinc alloy plating as disclosed in Publication No. 2597.
プレス時のめっきとダイスのかじりを防止してプレスの
潤滑性の向上をはかることが開示されている。It is disclosed that the lubricity of the press is improved by preventing galling of plating and dies during press.
又特開平１−１３６９５２号公報のごとく、めっき鋼板
の表面に有機潤滑皮膜や潤滑油等の有機物を塗布、また
は被覆しプレス性を向上させることが開示されている。Furthermore, as in JP-A-1-136952, it is disclosed that the surface of a plated steel sheet is coated or coated with an organic substance such as an organic lubricating film or lubricating oil to improve pressability.
しかしながら、このような製品は自動車ユーザーの使用
において、以下のような不十分な点がある。However, such products have the following disadvantages when used by automobile users.
自動車ユーザーでの使用工程の概略は、鋼板を油で洗浄
する工程、プレス、脱脂、化成処理、塗装となっており
、電解クロメートは化成処理での化成処理皮膜が形成せ
ず、潤滑油や潤滑皮膜などを鋼板に塗布したものは、洗
浄油で油が落ちるので十分な潤滑性能を発揮しない、さ
らには、化成処理前の脱脂工程の負荷がかかりコストが
高くなる。また、亜鉛系めっき鋼板に鉄亜鉛合金フラッ
シュめっきを施したものは電解クロメート処理に比較し
て鋼板のコストが高くなる１等の問題点があり、低コス
トで、化成処理が可能で、脱脂等の工程に負荷をかけず
、プレス性に優れる亜鉛系めっき鋼板の開発が望まれて
いる。The outline of the process used by automobile users is the process of cleaning steel plates with oil, pressing, degreasing, chemical conversion treatment, and painting. Steel sheets coated with a film or the like do not exhibit sufficient lubrication performance because the oil is removed by cleaning oil, and furthermore, the degreasing process before chemical conversion treatment is burdensome, increasing costs. In addition, zinc-plated steel sheets with iron-zinc alloy flash plating have the first problem of higher cost compared to electrolytic chromate treatment. There is a desire to develop a galvanized steel sheet that does not place any stress on the process and has excellent pressability.
本発明はこのような要求を有利に満足するためになされ
たものである。The present invention has been made to advantageously satisfy these requirements.
本発明の要旨とするところは、
亜鉛系めっき鋼板の表面にＭｎ酸化物皮膜を、Ｍｎとし
て５ Ｂ／ ｒｄ以上５００ｍｇ／ ｒｄ以下被覆した
ことを特徴とするプレス性、化成処理性に優れた亜鉛系
めっき鋼板、に関するものである。The gist of the present invention is to provide zinc with excellent pressability and chemical conversion treatment properties, characterized in that the surface of a zinc-based plated steel sheet is coated with a Mn oxide film containing 5 B/rd or more and 500 mg/rd or less of Mn. This relates to galvanized steel sheets.
本発明の対象とする亜鉛系めっき鋼板とは、例えば溶融
めっき法、電気めっき法、蒸着めっき法。The zinc-based plated steel sheet that is the object of the present invention includes, for example, hot-dip plating, electroplating, and vapor deposition plating.
溶射法などの各種の製造方法によるものがあり。There are various manufacturing methods such as thermal spraying.
めっき組成としては純Ｚｎの他、ＺｎとＦｅ、ＺｎとＮ
ｉ、ＺｎとＡｌ、ＺｎとＭｎ、ＺｎとＣｒ、 Ｚｒ＋
とＴｉ。The plating composition includes pure Zn, Zn and Fe, and Zn and N.
i, Zn and Al, Zn and Mn, Zn and Cr, Zr+
and Ti.
ＺｎとＭｇなどＺｎを主成分として、耐食性など諸機能
の向上のためＦｅ、 Ｎｉ、 Ｇｏ、 ＡＩ、 Ｐｂ、
Ｓｎ。With Zn as the main component, such as Zn and Mg, we also use Fe, Ni, Go, AI, Pb, etc. to improve various functions such as corrosion resistance.
Sn.
Ｓｂ、Ｃｕ、Ｔｉ、ＳＬ、Ｂ、Ｐ、Ｎ、Ｓｔ Ｏ等の１
種ないし２種以上の合金元素および不純物元素を含み、
またＳ ｉ Ｏ＊ ｔ Ａ ｌｘ Ｏｓなどのセラミッ
ク微粒子、Ｔｉｅ、、ＢａＣｒＯ４などの酸化物、アク
リル樹脂などの有機高分子をめっき層中に分散させたも
のがあり、めっき層の厚み方向で単一組成のもの、連続
的あるいは層状に組成が変化するものがあり、さらに多
層めっき鋼板では、最上層に、めっき組成としては純Ｚ
ｎの他、ＺｎとＦｅ、ＺｎとＮｉ、ＺｎとＡｌ、Ｚｎと
Ｍｎ、ＺｎとＣｒ、ＺｎとＴｉ。1 such as Sb, Cu, Ti, SL, B, P, N, St O, etc.
Contains a species or two or more alloying elements and impurity elements,
There are also ceramic fine particles such as S i O * t A lx Os, oxides such as Tie, BaCrO4, and organic polymers such as acrylic resin dispersed in the plating layer, so that they are dispersed in a single layer in the thickness direction of the plating layer. There are those whose composition changes continuously or in layers, and in multi-layer plated steel sheets, the top layer contains pure Z as a plating composition.
In addition to n, Zn and Fe, Zn and Ni, Zn and Al, Zn and Mn, Zn and Cr, and Zn and Ti.
ＺｎとＭｇなどＺｎを主成分として、耐食性などの諸機
能の向上のため１種ないし２種以上の合金元素および不
純物元素を含み、また、 ＳｉＯ□、 Ａ１．Ｏ。The main component is Zn such as Zn and Mg, and contains one or more alloying elements and impurity elements to improve various functions such as corrosion resistance, and also contains SiO□, A1. O.
などのセラミックス微粒子、Ｔｉｅ、、ＢａＣｒＯ４な
どの酸化物、アクリル樹脂などの有機高分子をめっき層
中に分散させたものがある。There are ceramic fine particles such as Tie, oxides such as BaCrO4, and organic polymers such as acrylic resin dispersed in the plating layer.
例えば、溶融亜鉛めっき鋼板、蒸着亜鉛めっき鋼板、鉄
−亜鉛合金化溶融亜鉛めっき鋼板、亜鉛を主とするアル
ミニウム、鉄などの合金溶融亜鉛めっき鋼板、めっき周
断面方向で下層が合金化されている合金化溶融亜鉛めっ
き鋼板（一般にハーフアロイと称する）１片面鉄−亜鉛
合金化溶融亜鉛めっき層、他面溶融亜鉛めっき層からな
るめっき鋼板、これらのめっき層上に電気めっき、蒸着
めっき等により亜鉛、または亜鉛を主成分として鉄、ニ
ッケルを主成分とする金属をめっきした鋼板、あるいは
、電気亜鉛めっき鋼板、亜鉛、ニッケル、クロム等合金
電気めっき鋼板等、更に単一合金層又は多層合金電気め
っき鋼板、亜鉛および亜鉛含有金属の蒸着めっき鋼板等
がある。その他。For example, hot-dip galvanized steel sheets, vapor-deposited galvanized steel sheets, iron-zinc alloyed hot-dip galvanized steel sheets, hot-dip galvanized steel sheets made of zinc-based alloys such as aluminum and iron, and the lower layer of the coating is alloyed in the circumferential cross-sectional direction. Alloyed hot-dip galvanized steel sheet (generally referred to as half-alloy) A coated steel sheet consisting of an iron-zinc alloyed hot-dip galvanized layer on one side and a hot-dip galvanized layer on the other side. Zinc is applied to these plating layers by electroplating, vapor deposition plating, etc. or steel sheets plated with metals mainly composed of zinc and iron or nickel, or electrogalvanized steel sheets, electroplated steel sheets with alloys such as zinc, nickel, chromium, etc., and single alloy layer or multilayer alloy electroplated steel sheets. There are steel sheets, steel sheets coated with zinc and zinc-containing metals, etc. others.
Ｓｉｎ、、Ａｌ、０３などのセラミックス微粒子、 Ｔ
ｉＯ２酸化物微粒子及び有機高分子などを亜鉛又は亜鉛
合金めっき中に分散させた分散めっき鋼板がある。Ceramic fine particles such as Sin, Al, 03, T
There is a dispersion-plated steel sheet in which iO2 oxide fine particles, organic polymers, etc. are dispersed in zinc or zinc alloy plating.
このような亜鉛系めっき鋼板表面に、Ｍｎ酸化物皮膜を
、Ｍｎとして５ ｍｇ／ ｎｆ以上５００ｍｇ／ ｒｄ
以下被覆することにより、プレス性、化成処理性を向上
しようとするものである。A Mn oxide film is applied to the surface of such a zinc-based plated steel sheet at a concentration of 5 mg/nf or more of Mn to 500 mg/rd.
The following coating is intended to improve pressability and chemical conversion treatment properties.
即ち、プレスの潤滑性をめっき鋼板に付与するには、め
っき鋼板表面に硬質の皮膜を形成することが有効である
。この点で電解クロメート処理、鉄亜鉛合金めっきは有
効であるが、前者は化成処理皮膜が形成できない、後者
は処理量が多くコスト高になる。That is, in order to impart press lubricity to a plated steel plate, it is effective to form a hard film on the surface of the plated steel plate. Electrolytic chromate treatment and iron-zinc alloy plating are effective in this regard, but the former cannot form a chemical conversion film, and the latter requires a large amount of treatment and is expensive.
これらの解決には、硬質皮膜つまり、酸化物皮膜であり
、かつ化成処理液中で溶解し、化成皮膜を形成できると
ともに、皮膜成分が化成処理液に溶は出しても化成処理
に悪影響を与えないことが必要である。The solution to these problems is to use a hard film, that is, an oxide film, which can dissolve in the chemical conversion treatment solution and form a chemical conversion film, and which does not adversely affect the chemical conversion treatment even if the film components dissolve into the chemical conversion treatment solution. It is necessary that there be no.
我々は、このような観点から、亜鉛系めっき鋼板表面に
Ｍｎ酸化物皮膜を形成すれば良いことを見いだした０Ｍ
ｎ酸化物皮膜はクロメート皮膜と同様ガラス状の皮膜と
なり、プレス時にめっきのダイスへのかじりを抑制し、
摺動性を良好とする。From this point of view, we have discovered that it is sufficient to form a Mn oxide film on the surface of a zinc-based coated steel sheet.
The n-oxide film becomes a glass-like film similar to the chromate film, and suppresses galling of the plating to the die during pressing.
Good sliding properties.
さらに、化成処理液には溶解するためクロメート皮膜と
異なり、化成処理皮膜を形成することができ、また、化
成処理皮膜の成分でもあるため、化成処理液に溶出して
も悪影響はない。Furthermore, since it dissolves in the chemical conversion treatment solution, it can form a chemical conversion coating unlike a chromate coating, and since it is also a component of the chemical conversion coating, there is no adverse effect even if it is eluted into the chemical conversion treatment solution.
Ｍｎ酸化物皮膜の構造は明確ではないが、Ｍｎ−０結合
からなるネットワークが主体で、部分的に−ＯＨ，Ｃｏ
、、Ｐｂ、基等が、さらにはめっきから供給される金属
が置換したアモルファス状の巨大分子構造であろうと推
定している。The structure of the Mn oxide film is not clear, but it is mainly a network consisting of Mn-0 bonds, and partially -OH, Co
, Pb, groups, etc., and it is presumed that it is an amorphous macromolecular structure in which metals supplied from plating are substituted.
また、本皮膜は酸化物皮膜のため、油による洗浄工程や
、脱油工程でも溶解しないため、潤滑性能の低下や、他
の工程に負荷をおよぼさない。Furthermore, since this film is an oxide film, it does not dissolve even in the cleaning process with oil or the deoiling process, so it does not reduce the lubricating performance or impose a burden on other processes.
本皮膜の密着性や成膜性を良好にするために、リン酸、
はう酸、硫酸、硝酸、塩酸などの無機酸や、それからな
る塩を添加することは効果的である。In order to improve the adhesion and film formability of this film, phosphoric acid,
It is effective to add inorganic acids such as halonic acid, sulfuric acid, nitric acid, and hydrochloric acid, and salts made from them.
さらに、この皮膜中には、処理浴中やめつきに含まれる
物質を不純物として含んでいてもよい。Furthermore, this film may contain substances contained in the treatment bath or coating as impurities.
これら不純物としてはＺｎ、 ＡＩ、 Ｃｒ、 Ｃｏ、
Ｎｉ。These impurities include Zn, AI, Cr, Co,
Ni.
Ｐｂ、Ｓｎ、Ｃｕ、Ｔｉ、Ｓｉ、Ｂ、Ｎ、Ｓ、Ｐ、Ｃ１
゜Ｋ、Ｎａ、Ｍｇ、Ｃａ、Ｂａ、Ｉｎ、Ｃ，Ｆｅ、Ｖ、
Ｗ。Pb, Sn, Cu, Ti, Si, B, N, S, P, C1
゜K, Na, Mg, Ca, Ba, In, C, Fe, V,
W.
Ｍｏ、などがある。Mo, etc.
次に、本発明の皮膜の成膜量範囲について述べる。Next, the range of film formation amount of the film of the present invention will be described.
この皮膜の皮膜量はプレス性を良好とするには。The amount of this film should be determined to improve pressability.
Ｍｎとして５ｓ＋ｇ／ｎｒ以上あればよいが、皮膜量が
５００ｍｇ／ ｒｒｒを越えると化成処理皮膜の形成が
不十分となる。It is sufficient if the Mn content is 5s+g/nr or more, but if the amount of the film exceeds 500mg/rrr, the formation of the chemical conversion film will be insufficient.
ゆえに、適正な皮膜量は、Ｍｎとして５ ｍｇ７ ％以
上５００ｍｇ／ｄ以下である。Therefore, the appropriate coating amount is 5 mg7% or more and 500 mg/d or less as Mn.
次に、実施例について述べる。Next, examples will be described.
本発明の実施例を比較例とともに第１表に挙げる。実施
例の恥１の処理条件は、過マンガン酸カリウム：５０ｇ
／ｌ リン酸：１０ｇ／ｌ硫酸３ｇＩＱ、炭酸亜鉛：５
ｇ／Ｑの溶液３０℃で被処理鋼板を陰極として、ｐｔ電
極を陽極にし７Ａ／ｄｎ（で１．５秒電解を行った後、
水洗、乾燥した。他のものは、過マンガン酸カリウム、
リン酸、硫酸、炭酸亜鉛の濃度及び溶液の温度、浸漬時
間又は電解量を調整して作成した。第１表に示すごとく
１本発明法によれば、化成処理性を損なうこと無く、プ
レス性が比較例に比して格段に向上していることが明ら
かである。Examples of the present invention are listed in Table 1 along with comparative examples. The processing conditions for Shame 1 in Example are: potassium permanganate: 50g
/l Phosphoric acid: 10g/l Sulfuric acid 3gIQ, Zinc carbonate: 5
g/Q solution at 30°C, using the steel plate to be treated as the cathode and the PT electrode as the anode, electrolyzing at 7 A/dn (for 1.5 seconds, then
Washed with water and dried. Others are potassium permanganate,
It was created by adjusting the concentration of phosphoric acid, sulfuric acid, and zinc carbonate, the temperature of the solution, the immersion time, or the amount of electrolysis. As shown in Table 1, it is clear that according to the method of the present invention, the pressability is significantly improved compared to the comparative example without impairing the chemical conversion treatment properties.
注１）めっき鋼板の種類： ＡＳ：合金化溶融亜鉛めっ
き鋼板（Ｆｅ１０％、 Ａｌ １０．２５％、残Ｚｎ）
、 ＥＧ：電気亜鉛めっき鋼板、 ＧＩ：溶融亜鉛めっ
き鋼板（Ａｌ Ｏ，３％。Note 1) Type of plated steel sheet: AS: Alloyed hot-dip galvanized steel sheet (Fe10%, Al 10.25%, remaining Zn)
, EG: Electrogalvanized steel sheet, GI: Hot-dip galvanized steel sheet (AlO, 3%.
Ｆｅ Ｏ，８％、Ｐｂ０．１％、残Ｚｎ）、 ＨＡ：半
合金柑溶融亜鉛めっき鋼板（Ｆｅ ５％、 Ａｔ Ｏ，
３％、残Ｚｎ）。Fe O, 8%, Pb 0.1%, balance Zn), HA: semi-alloy hot-dip galvanized steel sheet (Fe 5%, At O,
3%, remaining Zn).
ＣＲ：冷延鋼板、鋼板厚はいずれも０．８１■の普通鋼
性２）プレス性試験条件および評価方法：サンプルサイ
ズ：１７■■×３００−一、引張り速度：５００ｍｍ／
ｗｉｎ、角ビート肩Ｒ：１−０／３−Ｏｍｍｅ摺動長：
２００ｓ＋ｎ、塗油：ノックスラスト５３０Ｆ （バー
カー興産株式会社）４０．１ｇ／ｎ（の条件で１面圧を
１００〜６００ｋｇｆの間で数点試験を行い、引き抜き
加重を測定し、面圧と引き抜き加重の傾きから摩擦係数
を求めた。CR: Cold-rolled steel plate, steel plate thickness is 0.81mm, normal steel 2) Pressability test conditions and evaluation method: Sample size: 17mm x 300-1, tensile speed: 500mm/
win, square beat shoulder R: 1-0/3-Omme sliding length:
200s+n, oiling: Nox Last 530F (Barker Kosan Co., Ltd.) 40.1g/n (under the condition of 1 surface pressure between 100 and 600kgf, several points were tested, the pull-out load was measured, and the surface pressure and pull-out load The friction coefficient was calculated from the slope of .
注３）皮膜量：（）は測定元素
注４）化成処理性試験条件
化成処理液（亜鉛−リン酸−弗素系処理浴）には５Ｄｓ
ｏｏｏ （日本ペイント社製）を用い、処方どおり脱脂
。Note 3) Film amount: () indicates the measured element Note 4) Chemical conversion treatment test conditions Chemical treatment solution (zinc-phosphoric acid-fluorine treatment bath) contains 5Ds.
Degrease using ooo (manufactured by Nippon Paint Co., Ltd.) as prescribed.
表面調整を行った後化成処理を行った。化成処理皮膜の
判定は、ＳＥＸ （２次電子線像）により、均一に皮膜
が形成されているものは０、部分的に皮膜形成されてい
るものはΔ。After surface conditioning, chemical conversion treatment was performed. Chemical conversion coatings are judged by SEX (secondary electron beam image): 0 if the coating is uniformly formed, and Δ if the coating is partially formed.
皮膜が形成されていな いものは×と判定した。No film is formed. The items were judged as ×.
かくすることにより、プレスにおいて摺動性を冷延鋼板
並以上に向上し、かつ化成処理皮膜も形成可能とするこ
とができる。これによって、従来より低コストで、また
ユーザーの工程に負荷を低減でき、プレスによる生産性
を向上させることができるなどの優れた効果が得られる
。By doing so, it is possible to improve the sliding properties in a press to a level higher than that of a cold-rolled steel sheet, and also to form a chemical conversion coating. As a result, it is possible to achieve excellent effects such as being able to lower costs than before, reducing the burden on the user's process, and improving the productivity of the press.
Claims (1)
して５ｍｇ／ｍ＾２以上５００ｍｇ／ｍ＾２以下被覆し
たことを特徴とするプレス性，化成処理性に優れた亜鉛
系めっき鋼板。A zinc-based plated steel sheet having excellent pressability and chemical conversion treatment properties, characterized in that the surface of the zinc-based plated steel sheet is coated with a Mn oxide film in an amount of 5 mg/m^2 to 500 mg/m^2 as Mn.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1320450A JPH0635678B2 (en) | 1989-12-12 | 1989-12-12 | Galvanized steel sheet with excellent pressability and chemical conversion treatability |
| EP91900051A EP0456834B1 (en) | 1989-12-12 | 1990-12-11 | Galvanized steel plate having excellent capability of press working, chemical conversion and the like, and production of said plate |
| KR1019910700888A KR940001032B1 (en) | 1989-12-12 | 1990-12-11 | Galvanized steel plate-having excellent capability of press working, chemical conversion and the like, and production of said plate |
| PCT/JP1990/001615 WO1991009152A1 (en) | 1989-12-12 | 1990-12-11 | Galvanized steel plate having excellent capability of press working, chemical conversion and the like, and production of said plate |
| DE69027428T DE69027428T2 (en) | 1989-12-12 | 1990-12-11 | GALVANIZED STEEL SHEET WITH EXCELLENT PRESS FORMING, CHEMICAL SURFACE CONVERSION AND SIMILAR PROPERTIES AND THE PRODUCTION OF SUCH A SHEET |
| AU68889/91A AU629724B2 (en) | 1989-12-12 | 1990-12-11 | Deep drawing galvanised steel plate for press working and conversion coating |
| CA002046288A CA2046288C (en) | 1989-12-12 | 1990-12-11 | Zinc-base galvanized sheet steel excellent in press-formability, phosphatability, etc. and process for producing the same |
| US08/108,937 US5525431A (en) | 1989-12-12 | 1993-08-19 | Zinc-base galvanized sheet steel excellent in press-formability, phosphatability, etc. and process for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1320450A JPH0635678B2 (en) | 1989-12-12 | 1989-12-12 | Galvanized steel sheet with excellent pressability and chemical conversion treatability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03183797A true JPH03183797A (en) | 1991-08-09 |
| JPH0635678B2 JPH0635678B2 (en) | 1994-05-11 |
Family
ID=18121586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1320450A Expired - Lifetime JPH0635678B2 (en) | 1989-12-12 | 1989-12-12 | Galvanized steel sheet with excellent pressability and chemical conversion treatability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0635678B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100600033B1 (en) * | 1999-12-24 | 2006-07-13 | 재단법인 포항산업과학연구원 | Fabrication method of Mn-vapor deposited galvanized steel sheet |
| JP2006265578A (en) * | 2005-03-22 | 2006-10-05 | Jfe Steel Kk | Galvanized steel sheet for chemical conversion, its manufacturing method, and chemically treated steel sheet |
| EP3299497A1 (en) * | 2016-09-27 | 2018-03-28 | ATOTECH Deutschland GmbH | Method for treatment of a chromium surface |
-
1989
- 1989-12-12 JP JP1320450A patent/JPH0635678B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100600033B1 (en) * | 1999-12-24 | 2006-07-13 | 재단법인 포항산업과학연구원 | Fabrication method of Mn-vapor deposited galvanized steel sheet |
| JP2006265578A (en) * | 2005-03-22 | 2006-10-05 | Jfe Steel Kk | Galvanized steel sheet for chemical conversion, its manufacturing method, and chemically treated steel sheet |
| EP3299497A1 (en) * | 2016-09-27 | 2018-03-28 | ATOTECH Deutschland GmbH | Method for treatment of a chromium surface |
| WO2018060166A1 (en) * | 2016-09-27 | 2018-04-05 | Atotech Deutschland Gmbh | Method for treatment of a chromium finish surface |
| US11214881B2 (en) | 2016-09-27 | 2022-01-04 | Atotech Deutschland Gmbh | Method for treatment of a chromium finish surface |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0635678B2 (en) | 1994-05-11 |
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