JPH0317282A - Production of galvanized steel sheet excellent in press formability - Google Patents
Production of galvanized steel sheet excellent in press formabilityInfo
- Publication number
- JPH0317282A JPH0317282A JP15128089A JP15128089A JPH0317282A JP H0317282 A JPH0317282 A JP H0317282A JP 15128089 A JP15128089 A JP 15128089A JP 15128089 A JP15128089 A JP 15128089A JP H0317282 A JPH0317282 A JP H0317282A
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- galvanized steel
- zinc
- plating
- press formability
- 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.)
- Pending
Links
- 229910001335 Galvanized steel Inorganic materials 0.000 title claims abstract description 27
- 239000008397 galvanized steel Substances 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 8
- 239000002344 surface layer Substances 0.000 claims abstract description 8
- 239000010409 thin film Substances 0.000 claims abstract description 6
- 239000007864 aqueous solution Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000007747 plating Methods 0.000 claims description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 239000011701 zinc Substances 0.000 claims description 13
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 11
- 229910052725 zinc Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 150000002739 metals Chemical class 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 2
- 238000007598 dipping method Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract description 13
- 238000000151 deposition Methods 0.000 abstract description 2
- 229910021580 Cobalt(II) chloride Inorganic materials 0.000 abstract 1
- 229910021577 Iron(II) chloride Inorganic materials 0.000 abstract 1
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 abstract 1
- 238000005275 alloying Methods 0.000 abstract 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 abstract 1
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 abstract 1
- 238000007654 immersion Methods 0.000 description 10
- 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
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- PWHVEHULNLETOV-UHFFFAOYSA-N Nic-1 Natural products C12OC2C2(O)CC=CC(=O)C2(C)C(CCC2=C3)C1C2=CC=C3C(C)C1OC(O)C2(C)OC2(C)C1 PWHVEHULNLETOV-UHFFFAOYSA-N 0.000 description 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- -1 chlorine ions Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
Landscapes
- Coating With Molten Metal (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
生業±旦祉里允互
本発明は、ブレス或形性にすぐれる亜鉛系めつき鋼板の
製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a galvanized steel sheet having excellent pressability and shapeability.
災来坐及査
近年、自動車用調板に対する耐食性向上の要求がますま
す高まる傾向にあり、なかでも、合金化溶融亜鉛めっき
鋼板は、塗装後の耐食性、塗膜の密着性、経済性等の点
から、広く用いられるに至っている。特に、腐食環境の
厳しい部位においては、耐穴あき性改善のために、めっ
き付着量を増加することが要求されており、厚日付けの
亜鉛めっき鋼板が多用される傾向にある。In recent years, there has been an increasing demand for improvements in the corrosion resistance of automotive panels, and in particular, alloyed hot-dip galvanized steel sheets have improved corrosion resistance after painting, adhesion of the paint film, economic efficiency, etc. Since then, it has come to be widely used. Particularly in areas with severe corrosive environments, it is required to increase the amount of plating to improve puncture resistance, and galvanized steel sheets with thicker dates tend to be used more frequently.
しかしながら、厚日付けの合金化溶融亜鉛めっき鋼板は
、プレス成形したときに、表面部に加わる摺動変形抵抗
が大きく、めっき剥離が多いという問題を有する。工具
との摺動面におけるめっき剥離は、めっき付着量と密接
な関係にあって、厚目付け鋼板の場合に特に問題となる
。However, thick-dated alloyed hot-dip galvanized steel sheets have a problem in that, when press-formed, the sliding deformation resistance applied to the surface portion is large and the plating peels off frequently. Peeling of the plating on the sliding surface with the tool is closely related to the amount of plating deposited, and is particularly a problem in the case of thickly coated steel plates.
■が″冫しようと る遠因
亜鉛系めっき鋼板は、めっき付着量が多くなるにつれて
、プレス加工した場合に、めっき剥離が生じやすくなる
。その原因の一つとして、プレス加工の際に、亜鉛系め
っきの表層部に加わる摺動変形抵抗が大きいことが挙げ
られよう。この傾向は、合金化溶融亜鉛めっき鋼板にお
いて、特に、著しい。As the amount of coating on zinc-plated steel sheets increases, the plating tends to peel off when press-formed. One of the reasons for this is that zinc-based One example of this is that the sliding deformation resistance applied to the surface layer of the plating is large.This tendency is particularly remarkable in alloyed hot-dip galvanized steel sheets.
そこで、本発明らは、上記変形抵抗を低減するための手
段を種々研究した結果、合金化溶融亜鉛めっき鋼板より
も、硬度が幾らか高いＦｅ， Ｎｉ及びＣｏから選ばれ
る１種又は２種以上の金属からなる薄膜を上記亜鉛系め
っき鋼板の表層部に置換析出させることによって、プレ
ス或形性にすぐれる亜鉛系めっき鋼板を得ることができ
ることを見出して、本発明に至ったものである。Therefore, as a result of researching various means for reducing the deformation resistance, the present inventors have developed one or more types selected from Fe, Ni, and Co, which have a somewhat higher hardness than alloyed hot-dip galvanized steel sheets. The present invention was achieved based on the discovery that a zinc-based plated steel sheet with excellent pressability can be obtained by displacing and precipitating a thin film made of the above metal on the surface layer of the above-mentioned zinc-based plated steel sheet.
従って、本発明は、前述した従来の亜鉛系めっき鋼板の
製造における問題を解決するためになされたものであっ
て、プレス戒形性にすぐれる亜鉛系めっき鋼板の製造方
法を提供することを目的とする。Therefore, the present invention was made in order to solve the above-mentioned problems in the production of conventional galvanized steel sheets, and an object of the present invention is to provide a method for producing zinc-coated steel sheets with excellent press shapeability. shall be.
ｉ ″冫 るための
本発明によるブレス成形性にすぐれる亜鉛系めっき鋼板
の製造方法は、ＦｅＣ１ｚＳＮｘＣ１ｇ及びＣｏＣ１．
から選ばれる１種又は２種以上を合計量にて０． １モ
ル／ｌ以上含有するｐＨＬＯ〜２．０の水溶液に温度５
０〜９０゜Ｃにて５〜２０秒間、亜鉛系めっき鋼板を浸
漬し、Ｆｅ， Ｎｉ及びＧｏから選ばれる１種又は２種
以上の金属からなる薄膜を上記亜鉛系めっき鋼板の表層
部に置換析出させることを特徴とする。The method for manufacturing a galvanized steel sheet with excellent press formability according to the present invention for the purpose of manufacturing FeC1zSNxC1g and CoC1.
The total amount of one or two or more selected from 0. An aqueous solution containing 1 mol/l or more of pHLO ~ 2.0 at a temperature of 5
A zinc-based plated steel sheet is immersed at 0 to 90°C for 5 to 20 seconds, and a thin film made of one or more metals selected from Fe, Ni, and Go is replaced on the surface layer of the zinc-based plated steel sheet. It is characterized by precipitation.
Ｆｅ， Ｎｔ及びＣｏの析出電位は、合金化溶融亜鉛め
っきの析出電位より責であるため、浸漬めっき、即ち、
置換めっきが可能である。即ち、ｐ ｅ ２ ＋Ｎｉ”
及びＣ０２゛から選ばれる１種又は２種以上の金属塩を
含有する水溶液に合金化溶融亜鉛めっき鋼板を浸漬すれ
ば、次のような置換反応が起こって、合金化溶融亜鉛め
っき表層部にＦｅ， Ｎｉ及びＣＯから選ばれる１種又
は２種以上の薄膜が形威される。Since the deposition potential of Fe, Nt and Co is higher than that of alloyed hot-dip galvanizing, immersion plating, i.e.
Displacement plating is possible. That is, p e 2 +Ni”
When an alloyed hot-dip galvanized steel sheet is immersed in an aqueous solution containing one or more metal salts selected from , Ni, and CO.
（Ｆｅ”″″，Ｎｉ”及びＣｏ”］ ＋ Ｚｎ＝
［Ｆｅ， Ｎｉ及びＣｏｌ ＋ Ｚｎ” （１）第１
図に示すように、合金化溶融亜鉛めっき鋼板（ＧＡ）の
表層部に置換めっきを施すことによって、表面の動摩擦
抵抗を低減させることができる。(Fe""", Ni" and Co"] + Zn=
[Fe, Ni and Col + Zn” (1) 1st
As shown in the figure, by applying displacement plating to the surface layer of an alloyed hot-dip galvanized steel sheet (GA), the dynamic frictional resistance on the surface can be reduced.
上記置換反応速度は、金属塩の種類及び濃度、浴ｐｌｌ
、浴温等によって異なる。本発明においては、金属塩と
しては塩化物を用いる。塩素イオンによって、置換めっ
きが促進され、また、均一な被膜を得ることができるか
らである。塩化物以外を用いる浴によれば、置換反応が
遅く、ブレス戒形性の改善が十分でない。The above substitution reaction rate depends on the type and concentration of metal salt, bath pll
, varies depending on bath temperature, etc. In the present invention, chloride is used as the metal salt. This is because displacement plating is promoted by chlorine ions, and a uniform coating can be obtained. If a bath using something other than chloride is used, the substitution reaction will be slow and the breathability will not be sufficiently improved.
本発明においては、塩素イオン濃度は０． １モル／ｌ
以上であることが必要である．しかし、この条件が満た
されるときは、浴は、塩素イオン以外の陰イオンを含有
していてもよい。In the present invention, the chloride ion concentration is 0. 1 mol/l
It is necessary that it is above. However, when this condition is met, the bath may contain anions other than chloride ions.
第２図に、浴におけるＦＢＣＩ！濃度とブレス戒形性と
の関係を示す。プレス成形性は、後述するクランクプレ
ス後のテーピングによるめっき剥離量によって５段階に
て評価した。ＦｅＣＩｚ ｌ度が高くなるにつれて、ブ
レス或形性は改善され、ＦｅＣ１ｇ濃度が０．１モル／
ｌ以上にてめっき剥離が生じない。Figure 2 shows the FBI in the bath! The relationship between concentration and breathability is shown. Press formability was evaluated on a five-point scale based on the amount of plating peeled off by taping after crank pressing, which will be described later. As the FeCl concentration increases, the breathability improves, and the FeCl concentration increases to 0.1 mol/g.
Plating peeling does not occur at 1 or more.
第３図に、浸漬温度とプレス戒形性との関係を？す．浴
温５０゜Ｃ以上にて置換めっきを施すとき、プレス成形
性が著しく改善される。浴温が５ ０ ℃よりも低いと
きは、置換めっきが不十分であることが示される。Figure 3 shows the relationship between immersion temperature and pressability. vinegar. When displacement plating is performed at a bath temperature of 50°C or higher, press formability is significantly improved. A bath temperature lower than 50° C. indicates insufficient displacement plating.
第４図に、浴ｐＨとプレス戊形後のめつき剥ｆｉｔｆｆ
ｆｉとの関係を示す。浴ｐｌ１が２． ０を越えるとき
は、プレス戊形後のめつきｉ＋＋Ｕｉが多い。Figure 4 shows the bath pH and plating peeling fitff after press forming.
shows the relationship with fi. Bath pl1 is 2. When it exceeds 0, the plating i++Ui after press forming is large.
第５図に、浸漬時間とプレス或形性との関係を示すよう
に、浸漬時間が５秒よりも短いときは、置換めっきが不
十分であるので、ブレス成形性の改善効果も乏しい。し
かし、浸漬温度が９０゜Ｃを越え、浴ｐ＋＋が１．０未
満にて、２０秒を越える時間、浸漬するときは、合金化
溶融亜鉛めっき層中に割れがかなりに発生し、引張変形
に対するめつき層の加工性が著しく劣化する。As shown in FIG. 5, which shows the relationship between immersion time and press formability, when the immersion time is shorter than 5 seconds, displacement plating is insufficient and the effect of improving press formability is also poor. However, when the immersion temperature exceeds 90°C, the bath p++ is less than 1.0, and the immersion time exceeds 20 seconds, a considerable amount of cracking occurs in the alloyed hot-dip galvanized layer, and the resistance to tensile deformation increases. Workability of the plated layer deteriorates significantly.
以上から、本発明においては、置換めっきは、ｐｅｃｌ
ｚ、ＮｉＣ１■及びＣＯＣｌ２から選ばれる少１種又は
２種以上を合計量にてＯ．■モル／ｌ以上含有す名ｐＨ
１． ｏ〜２．０の水溶液に温度５０〜９０℃にて５
〜２０秒間、浸漬する。From the above, in the present invention, displacement plating is performed using pecl
z, one or more selected from NiC1 and COCl2 in total amount. ■Contains more than mol/l pH
1. 5 at a temperature of 50 to 90°C to an aqueous solution of o to 2.0
Soak for ~20 seconds.
発』レｌ九果
以上のように、本発明によれば、所定の条件下に亜鉛系
めっき鋼板の表層部にＦｅ， Ｎｉ及びＣｏから選ばれ
る１種又は２種以上の金属からなる薄膜を置換析出させ
ることによって、ブレス或形性にすぐれる亜鉛系めっき
鋼板を得ることができる。As described above, according to the present invention, a thin film made of one or more metals selected from Fe, Ni, and Co is applied to the surface layer of a galvanized steel sheet under predetermined conditions. By substitution precipitation, a zinc-based plated steel sheet with excellent press shapeability can be obtained.
特に、本発明は、亜鉛系めっき鋼板として、合金化溶融
亜鉛めっき鋼板を用いる場合に好適である。In particular, the present invention is suitable when an alloyed hot-dip galvanized steel sheet is used as the galvanized steel sheet.
亥４４置
以下に実施例を挙げて本発明を説明するが、本発明はこ
れら実施例により何ら限定されるものではない。The present invention will be described below with reference to Examples, but the present invention is not limited to these Examples in any way.
合金化溶融亜鉛めっき鋼板（めっき目付け量６０／６０
ｇ／ｒｒｆ、鉄１１％）、亜鉛一鉄電気めっき鋼板（め
っき日付け１６ ０ ｇ／ボ、鉄１５％）及び亜鉛−ニ
ッケル電気めっき鋼板（めっき日付け１４ ０ ｇ／ｒ
ｒｆ，ニッケル１１％）のそれぞれに第１表に示す濃度
にて金属塩を含有する浴に第１表に示す条件にて置換め
っきを施した。Alloyed hot-dip galvanized steel sheet (coating weight 60/60
g/rrf, 11% iron), zinc-iron electroplated steel sheet (plating date 160 g/rf, iron 15%) and zinc-nickel electroplated steel sheet (plating date 140 g/r
displacement plating was performed under the conditions shown in Table 1 in a bath containing metal salts at the concentrations shown in Table 1.
得られた置換めっき鋼仮について、クランクプレス試験
及びドロービード試験にてブレス戒形性を評価した。結
果を第１表に示す。The obtained displacement plated steel was evaluated for its press shapeability in a crank press test and a drawbead test. The results are shown in Table 1.
本発明の方法によれば、プレス成形性にすぐれる亜鉛系
めっき鋼仮を得ることができる。According to the method of the present invention, it is possible to obtain a temporary zinc-plated steel having excellent press formability.
尚、試験方法は次のとおりである。The test method is as follows.
Ｌ土７ ７ ７”２１児哉
第６図に示すように、縦横各５０ｍｍの角筒金型ｌを用
いて、３０Ｘ１００ｍａ＋の試験片２をポンチ３にてプ
レス速度３００ｍｍ／分、戒形高さ７０ａｉ、防錆油な
しにてしごきＵ曲げ試験を行なった。このＵ［Ｉｈげ後
、テーピングによって、めっきｉｌｌ Ｍ状況を観察し
た。As shown in Figure 6, a 30 x 100 ma+ test piece 2 was pressed with a punch 3 at a pressing speed of 300 mm/min and a preform height using a rectangular tube mold l with length and width of 50 mm. 70ai, an ironing U-bending test was conducted without rust-preventing oil.After this U-bending, the plating condition was observed by taping.
上上ニ］≧二Ｌ或狭
試験片４を３ ０ Ｘ ３ ０ ｍｍに切断し、防錆油
を塗布した後、第７図に示すように、矢印方向に引抜き
速度３００ｍｍ／分、荷重２５０ｋｇにてドロービード
シξユレーションを行なった。試験片は、連続１０枚を
引き抜いて、１０本の試料の評価面５及び金型をテーピ
ングし、テープに付着したバウダーを原子吸光分析にて
定量分析した。After cutting the 2L or narrow test piece 4 into 30 x 30 mm and applying anti-rust oil, it was pulled out in the direction of the arrow at a speed of 300 mm/min and a load of 250 kg, as shown in Fig. 7. Drawbead simulation was performed at . Ten test pieces were pulled out in succession, the evaluation surface 5 of the ten samples and the mold were taped, and the border attached to the tape was quantitatively analyzed by atomic absorption spectrometry.
第１図は、合金化溶融亜鉛めっき鋼板自体と置換めっき
した合金化溶融亜鉛めっき鋼板の摩擦係数の関係を示す
グラフ、第２図は、浸漬浴におもナるＦｅＣｌ．４度と
置換めっきした合金化溶融亜鉛めっき鋼板のブレス成形
性との関係を示すグラフ、第３図は、浸漬温度と置換め
っきした合金化溶融亜鉛めっき調板のプレス成形性との
関係を示すグラフ、第４図は、浸漬浴ｐｉｔとプレス戒
形後のめつき剥離量との関係を示すグラフ、第５図は、
浸漬時間とプレス成形後のめつき剥Ｍ量との関係を示す
グラフである。第６図は、クランクプレス試験を説明す
るための図、第７図は、ドロービード試験を説明するた
めの図である。
１・・・角筒金型、２・・・試験片、３・・・ポンチ、
４・・・試験片、５・・・試料の評価面。
第２図
第１図
第８図
ＧＡ
（，Ａ＋，ｉタ注享’ＪＪｈ７さ
痔偏益（クＣ）
第４図
第５図
ＡζＩ癒関（令リ
第６図FIG. 1 is a graph showing the relationship between the friction coefficient of the alloyed hot-dip galvanized steel sheet itself and the displacement-plated alloyed hot-dip galvanized steel sheet. A graph showing the relationship between immersion temperature and the press formability of an alloyed hot-dip galvanized steel sheet that has been displacement plated. Figure 3 shows the relationship between the immersion temperature and the press formability of an alloyed hot-dip galvanized steel sheet that has been displacement plated. The graph, FIG. 4, is a graph showing the relationship between the immersion bath pit and the amount of plating peeled off after pressing, and FIG.
It is a graph showing the relationship between the immersion time and the amount of plating peeled off after press molding. FIG. 6 is a diagram for explaining the crank press test, and FIG. 7 is a diagram for explaining the drawbead test. 1... Square cylinder mold, 2... Test piece, 3... Punch,
4...Test piece, 5...Evaluation surface of sample. Fig.2 Fig.1 Fig.8
Claims (2)
から選ばれる少１種又は２種以上を合計量にて０．１モ
ル／ｌ以上含有するｐＨ１．０〜２．０の水溶液に温度
５０〜９０℃にて５〜２０秒間、亜鉛系めつき鋼板を浸
漬し、Ｆｅ、Ｎｉ及びＣｏから選ばれる１種又は２種以
上の金属からなる薄膜を上記亜鉛系めつき鋼板の表層部
に置換析出させることを特徴とするプレス成形性にすぐ
れる亜鉛系めつき鋼板の製造方法。(1) FeCl_2, NiCl_2 and CoCl_2
Zinc-based plating is applied to an aqueous solution with a pH of 1.0 to 2.0 containing at least one or more selected from the following in a total amount of 0.1 mol/l or more at a temperature of 50 to 90°C for 5 to 20 seconds. Zinc with excellent press formability characterized by dipping a steel plate and displacing and precipitating a thin film made of one or more metals selected from Fe, Ni, and Co on the surface layer of the zinc-plated steel plate. A method for manufacturing galvanized steel sheets.
であることを特徴とする請求項第１項記載の亜鉛系めつ
き鋼板の製造方法。(2) The method for manufacturing a zinc-based galvanized steel sheet according to claim 1, wherein the zinc-based galvanized steel sheet is an alloyed hot-dip galvanized steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15128089A JPH0317282A (en) | 1989-06-14 | 1989-06-14 | Production of galvanized steel sheet excellent in press formability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15128089A JPH0317282A (en) | 1989-06-14 | 1989-06-14 | Production of galvanized steel sheet excellent in press formability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0317282A true JPH0317282A (en) | 1991-01-25 |
Family
ID=15515232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15128089A Pending JPH0317282A (en) | 1989-06-14 | 1989-06-14 | Production of galvanized steel sheet excellent in press formability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0317282A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996010103A1 (en) * | 1994-09-27 | 1996-04-04 | Nkk Corporation | Galvanized steel sheet and process for producing the same |
| US5849423A (en) * | 1995-11-21 | 1998-12-15 | Nkk Corporation | Zinciferous plated steel sheet and method for manufacturing same |
| US7673485B2 (en) | 2001-10-23 | 2010-03-09 | Sumitomo Metal Industries, Ltd. | Hot press forming method |
-
1989
- 1989-06-14 JP JP15128089A patent/JPH0317282A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996010103A1 (en) * | 1994-09-27 | 1996-04-04 | Nkk Corporation | Galvanized steel sheet and process for producing the same |
| AU696903B2 (en) * | 1994-09-27 | 1998-09-24 | Jfe Steel Corporation | Zinciferous plated steel sheet and method for manufacturing same |
| US5861218A (en) * | 1994-09-27 | 1999-01-19 | Nkk Cororation | Zinciferous plated steel sheet and method for manufacturing same |
| US5849423A (en) * | 1995-11-21 | 1998-12-15 | Nkk Corporation | Zinciferous plated steel sheet and method for manufacturing same |
| US7673485B2 (en) | 2001-10-23 | 2010-03-09 | Sumitomo Metal Industries, Ltd. | Hot press forming method |
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