JPH02258961A - Equipment for producing galvanized steel sheet having excellent weldability - Google Patents
Equipment for producing galvanized steel sheet having excellent weldabilityInfo
- Publication number
- JPH02258961A JPH02258961A JP7918289A JP7918289A JPH02258961A JP H02258961 A JPH02258961 A JP H02258961A JP 7918289 A JP7918289 A JP 7918289A JP 7918289 A JP7918289 A JP 7918289A JP H02258961 A JPH02258961 A JP H02258961A
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- equipment
- oxide film
- plating
- galvanized steel
- 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 12
- 239000008397 galvanized steel Substances 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 229910052742 iron Inorganic materials 0.000 claims abstract description 21
- 238000004140 cleaning Methods 0.000 claims abstract description 15
- 238000005096 rolling process Methods 0.000 claims abstract description 14
- 238000009713 electroplating Methods 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 39
- 238000005246 galvanizing Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- 238000002203 pretreatment Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000007747 plating Methods 0.000 abstract description 28
- 229910052725 zinc Inorganic materials 0.000 abstract description 13
- 238000005275 alloying Methods 0.000 abstract description 11
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 229910000640 Fe alloy Inorganic materials 0.000 abstract description 2
- 230000004913 activation Effects 0.000 abstract 2
- 229910007570 Zn-Al Inorganic materials 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 238000000137 annealing Methods 0.000 abstract 1
- 239000011247 coating layer Substances 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 239000010410 layer Substances 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 12
- 239000011701 zinc Substances 0.000 description 12
- 239000000243 solution Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000005868 electrolysis reaction Methods 0.000 description 5
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000611 Zinc aluminium Inorganic materials 0.000 description 1
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 1
- PGTXKIZLOWULDJ-UHFFFAOYSA-N [Mg].[Zn] Chemical compound [Mg].[Zn] PGTXKIZLOWULDJ-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- WJZHMLNIAZSFDO-UHFFFAOYSA-N manganese zinc Chemical compound [Mn].[Zn] WJZHMLNIAZSFDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- DPTATFGPDCLUTF-UHFFFAOYSA-N phosphanylidyneiron Chemical compound [Fe]#P DPTATFGPDCLUTF-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Coating With Molten Metal (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、溶接性に優れた亜鉛系メッキ鋼板の製造設備
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to equipment for manufacturing zinc-based plated steel sheets with excellent weldability.
［従来の技術と発明が解決しようとする課題］亜鉛メッ
キ鋼板（金合金化亜鉛メッキ鋼板）の溶接性を向上させ
るため、メッキ鋼板表面に酸化膜（＾１２０ｓ＋ ５ｉ
０２． ＴｉＯ□等）を生成し、溶接電極に亜鉛が溶解
付着することを防止する方法（特開昭５５−１１０７８
３号公報）、又特開昭［１Ｏ−６３３９４号公報のごと
く、メッキ鋼板表面に不活性皮膜を形成させ溶接性を向
上させることも知られている。[Prior art and problems to be solved by the invention] In order to improve the weldability of galvanized steel sheets (gold alloyed galvanized steel sheets), an oxide film (^120s+5i) is applied to the surface of the galvanized steel sheets.
02. A method for preventing zinc from dissolving and adhering to welding electrodes by generating (TiO□, etc.) (Japanese Patent Application Laid-Open No. 55-11078
It is also known to improve weldability by forming an inert film on the surface of a plated steel sheet, as disclosed in Japanese Patent Application Laid-open No. 3 (Japanese Patent Application Laid-Open No. 10-63394).
しかして、溶接性を向上させるための酸化物を工業的規
模で安定して、メッキ鋼板の製造、メッキ鋼板表面への
酸化膜の生成を連続的に行ない高生産性を維持しつつ製
造することが強く要求されるところである。Therefore, it is necessary to stably produce oxides for improving weldability on an industrial scale, and to continuously manufacture plated steel sheets and form oxide films on the surface of the plated steel sheets while maintaining high productivity. is strongly required.
本発明は、このような要求を有利に満足する技術を提供
するものである。The present invention provides a technique that advantageously satisfies these requirements.
［課題を解決するための手段］
本発明の特徴とするところは、溶融亜鉛メッキ装置と、
溶融亜鉛系メッキ鋼板前処理装置とｍ′に圧延機と鉄系
電気メッキ装置と、洗滌装置と、溶接性向土用酸化膜化
成装置と、洗滌装置と、乾燥装置を連設した溶接性に優
れた亜鉛系メッキ鋼板の製造設備、及び溶融亜鉛系メッ
キ装置と、溶融亜鉛メッキ鋼板前処理装置と、鉄系電気
メッキ装置と、洗滌装置と、溶接性向上用酸化膜化成装
置と、洗滌装置と、乾燥装置と、調質圧延機を連設した
、溶接性に優れた亜鉛系メッキ鋼板の製造設備に関する
ものである。[Means for Solving the Problems] The present invention is characterized by a hot-dip galvanizing apparatus,
Excellent weldability with hot-dip galvanized steel plate pre-treatment equipment, rolling mill, iron-based electroplating equipment, cleaning equipment, oxidation film conversion equipment for weldable soil, cleaning equipment, and drying equipment connected to m'. manufacturing equipment for galvanized steel sheets, hot-dip galvanizing equipment, hot-dip galvanized steel sheet pre-treatment equipment, iron-based electroplating equipment, cleaning equipment, oxide film conversion equipment for improving weldability, and cleaning equipment. This invention relates to manufacturing equipment for zinc-plated steel sheets with excellent weldability, which is equipped with a drying device and a temper rolling mill.
上記のごとき、溶融亜鉛メッキ装置としては例えば通常
用いられている鋼板（帯）の前処理炉を付設した連続溶
融亜鉛メッキ装置であって、亜鉛浴槽直上に、加熱処理
により熱拡散で鉄−亜鉛合金化処理する合金化炉を装備
するメッキ装置であって、メッキ鋼板（ＩＦ）としては
、例えば亜鉛、亜鉛−アルミニウム、亜鉛−マンガン、
亜鉛−マグネシウム等の用途に応じた亜鉛主体のメッキ
を施す、付着量としては用途により異なるが２０〜１０
０ｇ／ｍ’が適当であり、メッキ後、必要に応じて、上
記合金化炉で加熱し、鉄をメッキ層中へ拡散するもので
ある。The hot-dip galvanizing equipment described above is, for example, a continuous hot-dip galvanizing equipment equipped with a commonly used pre-treatment furnace for steel plates (strips), in which iron-zinc is deposited directly above the zinc bath by thermal diffusion through heat treatment. This is a plating device equipped with an alloying furnace for alloying, and the plated steel sheets (IF) include, for example, zinc, zinc-aluminum, zinc-manganese,
Zinc-magnesium or other zinc-based plating is applied depending on the application.The amount of coating varies depending on the application, but it is 20 to 10
0 g/m' is appropriate, and after plating, if necessary, it is heated in the alloying furnace described above to diffuse iron into the plating layer.
このようなメッキ鋼帯（板）をメッキ鋼板前処理装置で
メッキ表面を清浄化する、つまり後述のごとき、鉄系電
気メッキ、酸化膜化成に際し、確実に被覆するための処
理である。The plated surface of such a plated steel strip (plate) is cleaned using a plated steel plate pre-treatment device, that is, the plated surface is cleaned to ensure reliable coating during iron-based electroplating and oxide film formation as described below.
即ち、亜鉛メッキに際してはメッキ浴中ヘアルミニウム
を若干添加し、洛中でメッキ層と鋼板表面の境面に脆い
亜鉛−鉄合金層生成を抑制する。このため、メッキ層表
面にＡ２２０．が混在しており、これは不働態化してお
り、上記のごとく、後の鉄系電気メッキに際し、密着性
を阻害する等の難点がある。That is, during galvanizing, a small amount of aluminum is added to the plating bath to suppress the formation of a brittle zinc-iron alloy layer at the interface between the plating layer and the surface of the steel sheet. For this reason, A220. are mixed, which is in a passivated state, and as mentioned above, there are problems such as inhibiting adhesion during the subsequent iron-based electroplating.
そこで、メッキ鋼板前処理装置で、メッキ鋼帯を処理す
る、例えば、アルカリ水溶液（１〜２０％）で浸漬又は
電解により浄化し、Ｎｚｏｓ等を除去し、メッキ表面を
活性化するものである。Therefore, the plated steel strip is treated with a plated steel sheet pretreatment device, for example, by immersion in an alkaline aqueous solution (1 to 20%) or purified by electrolysis to remove Nzos and the like and activate the plated surface.
このようなメッキ鋼板は、メッキ時又は合金化処理時に
加熱され、鋼板としての形状が悪化しているので、調質
圧延により形状矯正等を施すものである。Such plated steel sheets are heated during plating or alloying treatment, and the shape of the steel sheet deteriorates, so the shape is corrected by temper rolling.
この調質圧延は、メッキ鋼板を巻取る前に施してもよい
、従って例えば、巻取機と乾燥装置の間に調質圧延機を
配置してもよい。This temper rolling may be performed before the plated steel sheet is wound up, and therefore, for example, a temper rolling mill may be disposed between the winding machine and the drying device.
このようにして調質圧延後、鉄系電気メッキ装置へ導き
溶融亜鉛メッキ層の上層に鉄系メッキを施す、この鉄系
メッキは、溶接性を向上するとともに、カチオン電着塗
装性を向上するためであり、例えば、鉄、鉄−亜鉛、鉄
−燐。After temper rolling in this way, the iron-based plating is carried out to the iron-based electroplating equipment to apply iron-based plating to the upper layer of the hot-dip galvanized layer.This iron-based plating improves weldability as well as cationic electrodeposition coating properties. For example, iron, iron-zinc, iron-phosphorus.
等々・・・の鉄を主体とするメッキを施すものであって
、付着量としては、５〜２Ｑａ＋ｇ／ｍ２が適当である
。etc., etc., etc., and the coating amount is suitably 5 to 2Qa+g/m2.
メッキ装置としては、不溶性電極により、金属イオン含
有水溶液中で電解する。タイプとしては、水平、竪型等
を採用することができる。The plating device performs electrolysis in an aqueous solution containing metal ions using an insoluble electrode. As for the type, a horizontal type, a vertical type, etc. can be adopted.
このようにメッキした後、洗滌装置へ導き、水洗、湯洗
等により洗滌し、表面のメッキ液を十分除去する。次い
で、溶接性向上用酸化膜化成装置へ導き、メッキ表面に
酸化膜を生成するものである。After plating in this manner, the plate is led to a cleaning device and washed with water, hot water, etc. to sufficiently remove the plating solution on the surface. Next, it is guided to an oxide film forming device for improving weldability, and an oxide film is formed on the plating surface.
この酸化膜は溶接性（スポット溶接性等）を向上するた
めのものであり、酸化膜により、溶接時の加熱によフて
溶解したメッキ金属が電極に付着することを防止し、溶
接電流の抵抗増大を防止して溶接性を向上するとともに
電極の耐久性を向上するものである。This oxide film is intended to improve weldability (spot weldability, etc.).The oxide film prevents the plated metal melted by heating during welding from adhering to the electrode, and reduces the welding current. This prevents an increase in resistance, improves weldability, and improves the durability of the electrode.
酸化膜の生成方法としては、塩酸、蓚酸水溶液に漫潰し
、メッキ表面に酸化物を生成せしめる。又亜鉛イオンと
酸化剤からなる酸性洛中で、メッキ鋼板を陰極として電
解により亜鉛系酸化物を生成する。酸化膜量としては０
．０２４〜２．４ｇ／ｍ’ （亜鉛系酸化膜の場合は
、亜鉛量として０．０３〜３．０ｇ／ｒａ’が適当であ
る）で十分である。The method for producing an oxide film is to mash it in an aqueous solution of hydrochloric acid or oxalic acid to produce an oxide on the plating surface. In addition, zinc-based oxides are generated by electrolysis in an acidic environment consisting of zinc ions and an oxidizing agent, using a plated steel plate as a cathode. The amount of oxide film is 0
．． 0.024 to 2.4 g/m' (in the case of a zinc-based oxide film, an appropriate amount of zinc is 0.03 to 3.0 g/ra').
次いで、洗滌装置へ導き、水洗、湯洗等により、洗滌し
た後、乾燥装置（温風、加熱ロール接触等）へ導き、乾
燥して、製品として巻取るものである。Next, the material is introduced into a washing device, and after being washed with water, hot water, etc., it is introduced into a drying device (warm air, heated roll contact, etc.), dried, and rolled up as a product.
［実 施 例］ 次に本発明の実施例を挙げる。[Example] Next, examples of the present invention will be given.
実施例−１
第１図に示す実施例設備において、前処理炉１、溶融亜
鉛浴槽２からなる溶融亜鉛系メッキ装置３へ鋼帯４を導
き、メッキ後、必要に応じて合金化炉５において、合金
化処理を施し、亜鉛メッキ前処理装置６へ導き、メッキ
表面を活性化した後、調質圧延機７でメッキ鋼帯４に圧
延し、形状矯正を施す。Example-1 In the example equipment shown in FIG. 1, a steel strip 4 is introduced into a hot-dip zinc plating apparatus 3 consisting of a pre-treatment furnace 1 and a molten zinc bath 2, and after plating, it is passed through an alloying furnace 5 as necessary. After being subjected to alloying treatment and guided to a galvanizing pretreatment device 6 to activate the plated surface, it is rolled into a plated steel strip 4 in a temper rolling mill 7 and subjected to shape correction.
次いで、鉄系金属イオン含有メッキ液を満たした鉄系電
気メッキ装置８（水平メッキ装置）へ導き、不溶性電極
を用いメッキ鋼帯４を、陰極として電気メッキを施す。Next, the plated steel strip 4 is guided to an iron-based electroplating apparatus 8 (horizontal plating apparatus) filled with a plating solution containing iron-based metal ions, and electroplated using an insoluble electrode with the plated steel strip 4 serving as a cathode.
図中９はメッキ液の循環タンクで、鉄系金属粒を充填し
た補給層１Ｇへメッキ液を循環し、鉄系イオンを溶解補
給する。Reference numeral 9 in the figure is a circulation tank for plating solution, which circulates the plating solution to the replenishment layer 1G filled with iron-based metal particles to dissolve and replenish iron-based ions.
鉄系メッキ後、洗滌装置１１へ導き、水洗によりメッキ
鋼帯４表面に付着しているメッキ液を除去する。After iron-based plating, the plated steel strip 4 is guided to a cleaning device 11, and the plating solution adhering to the surface of the plated steel strip 4 is removed by washing with water.
次いで、溶接性向上用酸化膜化成装置１２（水平化成装
置）へ導き、電解によりメッキ鋼帯４表面に酸化膜を生
成せしめた後、洗滌装置１１ａへ導き水洗し、乾燥装置
１３で乾燥し、ループカー１４を介して製品として巻取
る。Next, it is led to an oxide film forming device 12 (horizontal chemical forming device) for improving weldability, and an oxide film is generated on the surface of the plated steel strip 4 by electrolysis, and then led to a washing device 11a, where it is washed with water, and dried in a drying device 13. It is wound up as a product via the loop car 14.
実施例−２
第２図に示す実施例設備において、溶融亜鉛系メッキ装
置３へ鋼帯４を導き、メッキを施した後、必要に応じて
合金化炉５で加熱して合金化処理を施し、次いでメッキ
鋼板前処理装置６へ導き、メッキ鋼１１Ｆ４表面を活性
化する。Example 2 In the example equipment shown in Fig. 2, a steel strip 4 is introduced into a hot-dip zinc plating device 3, plated, and then heated in an alloying furnace 5 to perform alloying treatment as necessary. Then, it is guided to the plated steel sheet pretreatment device 6 to activate the surface of the plated steel 11F4.
次いで、鉄系電気メッキ装置８へ導き、メッキ鋼帯４上
層へ鉄系電気メッキを施した後、洗滌装置１１へ導き、
メッキ鋼帯４表面に付着しているメッキ液を除去する。Next, it is led to an iron-based electroplating device 8, and after applying iron-based electroplating to the upper layer of the plated steel strip 4, it is led to a cleaning device 11,
The plating solution adhering to the surface of the plated steel strip 4 is removed.
次いで、溶接性向上用酸化膜化成装置１２（竪型）へ導
き、電解によりメッキ鋼帯４表面へ酸化膜を生成した後
、洗滌装置１１ａへ導か、洗滌し、乾燥装置１３へ導き
、乾燥後、調質圧延機７により圧延しメッキ鋼帯４の形
状矯正を施し、製品として巻取る。Next, it is led to an oxide film forming device 12 (vertical type) for improving weldability, and after generating an oxide film on the surface of the plated steel strip 4 by electrolysis, it is led to a cleaning device 11a, where it is washed, and then guided to a drying device 13, where it is dried. The shape of the plated steel strip 4 is corrected by rolling it using a temper rolling mill 7, and then winding it up as a product.
［発明の効果］
本発明によれば、溶接性に優れた亜鉛系メッキ鋼板を工
業的規模で安定して製造することができ、自動車用、家
電用等大量需要に確実に対応でき、産業上大きい効果を
奥するものである。[Effects of the Invention] According to the present invention, zinc-plated steel sheets with excellent weldability can be stably manufactured on an industrial scale, and mass demand for automobiles, home appliances, etc. can be reliably met. It has a profound effect.
第１図及び第２図は、本発明の実施例設備を示す説明図
である。
１・・・前処理炉 ２・・・溶融亜鉛浴槽３・・
・溶融亜鉛系メッキ装置
４・・・鋼帯 ５・・・合金化炉６・・・亜
鉛メッキ前処理装置
７・・・調質圧延機 ８・・・鉄系電気メッキ装置
９・・・メッキ液循環タンク
ｌＯ・・・補給槽 １１．ｌｌａ・・・洗滌装
置１２・・・溶接性向上用酸化膜化成装置１３・・・乾
燥装置FIG. 1 and FIG. 2 are explanatory diagrams showing an example of equipment of the present invention. 1... Pretreatment furnace 2... Molten zinc bath 3...
・Hot dip galvanizing equipment 4... Steel strip 5... Alloying furnace 6... Galvanizing pre-treatment equipment 7... Temper rolling mill 8... Iron based electroplating equipment 9... Plating Liquid circulation tank lO...supply tank 11. lla...Cleaning device 12...Oxide film formation device for improving weldability 13...Drying device
Claims (1)
理装置と、調質圧延機と、鉄系電気メッキ装置と、洗滌
装置と、溶接性向上用酸化膜化成装置と、洗滌装置と乾
燥装置を連設した溶接性に優れた亜鉛系メッキ鋼板の製
造設備 ２ 溶融亜鉛系メッキ装置と、溶融亜鉛メッキ鋼板前処
理装置と、鉄系電気メッキ装置と、洗滌装置と、溶接性
向上用酸化膜化成装置 と、洗滌装置と乾燥装置と、調質圧延機を連設した、溶
接性に優れた亜鉛系メッキ鋼板の製造設備[Claims] 1. A hot-dip galvanizing device, a hot-dip galvanized steel plate pre-treatment device, a temper rolling mill, an iron-based electroplating device, a cleaning device, an oxide film conversion device for improving weldability, Manufacturing equipment for zinc-plated steel sheets with excellent weldability that is equipped with washing equipment and drying equipment 2 Hot-dip galvanizing equipment, hot-dip galvanized steel sheet pre-treatment equipment, iron-based electroplating equipment, cleaning equipment, and welding A manufacturing facility for zinc-plated steel sheets with excellent weldability, which is equipped with an oxide film forming device for improving properties, a cleaning device, a drying device, and a temper rolling mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7918289A JPH02258961A (en) | 1989-03-30 | 1989-03-30 | Equipment for producing galvanized steel sheet having excellent weldability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7918289A JPH02258961A (en) | 1989-03-30 | 1989-03-30 | Equipment for producing galvanized steel sheet having excellent weldability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02258961A true JPH02258961A (en) | 1990-10-19 |
Family
ID=13682836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7918289A Pending JPH02258961A (en) | 1989-03-30 | 1989-03-30 | Equipment for producing galvanized steel sheet having excellent weldability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02258961A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002046487A1 (en) * | 2000-12-08 | 2002-06-13 | Vai Clecim | Installation for producing a metal strip with protective coating |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59104463A (en) * | 1982-12-06 | 1984-06-16 | Nippon Steel Corp | Preparation of molten zinc plated steel plate excellent in weldability |
| JPS60224791A (en) * | 1984-04-23 | 1985-11-09 | Nippon Steel Corp | Installation for producing double-layered galvanized steel sheet |
-
1989
- 1989-03-30 JP JP7918289A patent/JPH02258961A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59104463A (en) * | 1982-12-06 | 1984-06-16 | Nippon Steel Corp | Preparation of molten zinc plated steel plate excellent in weldability |
| JPS60224791A (en) * | 1984-04-23 | 1985-11-09 | Nippon Steel Corp | Installation for producing double-layered galvanized steel sheet |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002046487A1 (en) * | 2000-12-08 | 2002-06-13 | Vai Clecim | Installation for producing a metal strip with protective coating |
| FR2817876A1 (en) * | 2000-12-08 | 2002-06-14 | Vai Clecim | INSTALLATION FOR PRODUCING A METAL STRIP WITH PROTECTIVE COATING |
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