JPS60181285A - Treatment of heated belt-like material - Google Patents
Treatment of heated belt-like materialInfo
- Publication number
- JPS60181285A JPS60181285A JP3517584A JP3517584A JPS60181285A JP S60181285 A JPS60181285 A JP S60181285A JP 3517584 A JP3517584 A JP 3517584A JP 3517584 A JP3517584 A JP 3517584A JP S60181285 A JPS60181285 A JP S60181285A
- Authority
- JP
- Japan
- Prior art keywords
- molten salt
- strip
- salt
- rolls
- roll
- 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
- 239000000463 material Substances 0.000 title abstract description 5
- 150000003839 salts Chemical class 0.000 claims abstract description 51
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 27
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 239000004033 plastic Substances 0.000 claims abstract description 5
- 239000007864 aqueous solution Substances 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 abstract description 26
- 239000010959 steel Substances 0.000 abstract description 26
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 abstract description 6
- 239000007800 oxidant agent Substances 0.000 abstract description 4
- 235000010333 potassium nitrate Nutrition 0.000 abstract description 3
- 239000004323 potassium nitrate Substances 0.000 abstract description 3
- 238000013329 compounding Methods 0.000 abstract 1
- 239000011833 salt mixture Substances 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 4
- 235000010344 sodium nitrate Nutrition 0.000 description 3
- 239000004317 sodium nitrate Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 150000001447 alkali salts Chemical class 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- DWVSYMBABQVQCC-UHFFFAOYSA-M [N+](=O)([O-])[O-].[Na+].[OH-].[Na+] Chemical compound [N+](=O)([O-])[O-].[Na+].[OH-].[Na+] DWVSYMBABQVQCC-UHFFFAOYSA-M 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 159000000011 group IA salts Chemical class 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- BYTCDABWEGFPLT-UHFFFAOYSA-L potassium;sodium;dihydroxide Chemical compound [OH-].[OH-].[Na+].[K+] BYTCDABWEGFPLT-UHFFFAOYSA-L 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- -1 sodium hydroxide-potassium hydroxide-sodium nitrate Chemical compound 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Description
【発明の詳細な説明】
〔本発明の技術分野〕
本発明は、加熱帯鋼のような加熱帯状物の脱スケール前
処理として、該帯状物の表面に溶融塩または水溶液を連
続的に薄く均一に塗布する加熱帯状物の処理方法に関す
る。特に、本発明は、製鉄のＡＰラインに有効に適用で
きる加熱帯状物の処理方法に関する。Detailed Description of the Invention [Technical Field of the Invention] The present invention provides a method for pre-descaling a heating strip such as heating strip steel by continuously and uniformly applying a molten salt or an aqueous solution to the surface of the strip. The present invention relates to a method for treating a heated strip coated on a surface. In particular, the present invention relates to a method for treating heated strips that can be effectively applied to AP lines in steel manufacturing.
〔従来の脱スケール手段及びその欠点〕従来、製鉄のＡ
Ｐラインにおいて、帯鋼の表面を連続して溶融塩で処理
しスケールを可溶性のものに変質させるため、溶融塩と
して水酸化ナトリウム及び硝酸ナトリウム混合物を主成
分としたものを用い、４００〜５００Ｃの溶融塩槽（塩
浴）に浸せきして難脱スケール成分の酸化クロム皮膜に
（１）式に示す酸化反応を生ぜしめ、可溶性のものに変
えている。[Conventional descaling means and their drawbacks] Traditionally, A of steel manufacturing
In the P line, in order to continuously treat the surface of the steel strip with molten salt to transform the scale into a soluble one, a molten salt containing a mixture of sodium hydroxide and sodium nitrate as the main components was used, and the molten salt was heated at 400 to 500C. By immersing it in a molten salt bath (salt bath), the chromium oxide film, which is a difficult-to-remove scale component, undergoes the oxidation reaction shown in equation (1), making it soluble.
ｃｒ２ｏ５＋ ４ＮａＯＨ＋３４ｏ２（酸化剤）＝２Ｎ
ＩＬ２Ｃｒ０４・・・（１）帯鋼に付着した余分の溶融
塩は、鉄ロールにて絞り取っているが溶融塩は比較的粘
稠であり、帯鋼に付着して持出される溶融塩の厚さは２
０ｖｎ ／ ｗｉｎのラインでも１０μｍ 以上に達す
る。cr2o5+ 4NaOH+34o2 (oxidizing agent) = 2N
IL2Cr04... (1) Excess molten salt adhering to the steel strip is squeezed out with iron rolls, but the molten salt is relatively viscous, and the thickness of the molten salt adhering to the steel strip and being taken out is Saha 2
Even a line of 0vn/win reaches 10 μm or more.
この溶融塩の損失量はライン速度の増大に伴い著しく増
加するため、運転費の増大及び環境汚染の問題を生じて
いる。また、溶融塩中で鉄ロールと接触するので、スリ
ップにより帯鋼表面に傷つき易（、これが製品価値を低
下させる欠点もある。This loss of molten salt increases significantly as the line speed increases, resulting in increased operating costs and environmental pollution problems. In addition, since it comes into contact with iron rolls in molten salt, the surface of the steel strip is easily damaged due to slippage (this also has the disadvantage of reducing product value).
本発明は、上述した欠点を排除し、脱スケール前処理に
必要な量の溶融地ないしはその水浴液を均一に塗布する
ことができる加熱帯状物の処理方法を提供することを目
的とする。It is an object of the present invention to eliminate the above-mentioned drawbacks and to provide a method for treating a heated strip, which can uniformly apply the molten material or its water bath solution in the amount necessary for descaling pretreatment.
そして、本発明は、上記目的を達成する手段として、す
なわち、加熱帯状物の表面に必要蓋の溶融塩ないしはそ
の水溶液を均一に塗布する手段として、ロールを使用す
る点にある。すなわち、本発明は、
１、 加熱帯状物の表面を溶融地で前処理する方法にお
いて、軟化点が２００Ｃ以下の水酸化ナトリウム及び水
酸化カリウムの混合物を主成分とする溶融塩またはその
水溶液を用い、ロールにて塗布することを特徴とする加
熱帯状物の処理方法
２ ロールがゴムまたはプラスチックライニングしたも
のである特許請求の範囲第１項記載の加熱帯状物の処理
方法
である。The present invention uses a roll as a means for achieving the above object, that is, as a means for uniformly applying the required lid molten salt or its aqueous solution to the surface of the heating strip. That is, the present invention provides the following features: 1. A method for pre-treating the surface of a heated strip with a molten salt, using a molten salt or an aqueous solution thereof whose main component is a mixture of sodium hydroxide and potassium hydroxide having a softening point of 200C or less. Method 2 for treating a heated strip, characterized in that coating is carried out using a roll.A method for treating a heated strip according to claim 1, wherein the roll is lined with rubber or plastic.
帯鋼表面のスケール層の厚さは、冷延鋼板の場合約１μ
ｍ以下であり、前記（１）式の反応で必要とするアルカ
リ溶融塩の厚さは、その当量及び比重から計算し１μｍ
あれば充分である。従って塩浴中に浸せきしなくても
、本発明の手段、すなわち均一に約１μｍ の厚さで溶
融塩ないしはその水溶液をロールで塗布することにより
、塩浴浸せきと同様の脱スケール前処理としての効果を
上げ、余分な溶融塩の持出損失を防止できる。The thickness of the scale layer on the surface of the steel strip is approximately 1μ in the case of cold-rolled steel sheets.
The thickness of the alkali molten salt required for the reaction of formula (1) above is 1 μm, calculated from its equivalent weight and specific gravity.
It is enough. Therefore, even without immersion in a salt bath, by applying the method of the present invention, that is, applying molten salt or its aqueous solution uniformly to a thickness of about 1 μm with a roll, it can be used as a descaling pretreatment similar to salt bath immersion. It is possible to increase the effectiveness and prevent the loss of excess molten salt.
溶融塩として水酸化ナトリウム−硝酸ナトリウム混合物
を用いる場合にはその使用温度が４００〜５００Ｃであ
るため、このような環境で耐用性のある適当なロール材
料は鉄鋼に限定され、従って、塩浴中で鉄ロールと帯鋼
とが接触し、帯鋼表面に傷つくことは免れ難い。また、
この温度では、溶融塩の代りにアルカリ塩の水溶液を加
熱鋼板に直接塗布し、鋼板の保有熱を利用して水分を蒸
発させ、溶融塩にすることは困難で、それは水溶液の塗
布時に水分の沸騰蒸発が烈しく生成する水蒸気皮膜がロ
ールと鋼板との接触を妨げるためと考えられる。When using a sodium hydroxide-sodium nitrate mixture as the molten salt, the operating temperature is 400-500C, so suitable roll materials that can withstand such environments are limited to steel; It is inevitable that the iron roll and the steel strip will come into contact with each other and the surface of the steel strip will be damaged. Also,
At this temperature, it is difficult to apply an aqueous solution of alkali salt instead of molten salt directly to the heated steel plate and use the heat retained in the steel plate to evaporate the water and turn it into molten salt. This is thought to be because the steam film produced by boiling and evaporating intensely prevents contact between the roll and the steel plate.
水酸化ナトリウム１部に対し％〜３部の水酸化カリウム
を配合した混合塩、または、これに更に硝酸ナトリウム
、硝酸カリウムなどの酸化剤を配合した混合物では、そ
の軟化点を１５０〜２００Ｃに低下させることができ、
前記（１）式の反応を２００〜３００Ｃの温度で行はせ
ることができる。このような混合塩の水溶液を溶融塩の
代りに、温度３００Ｃ付近で加熱帯鋼に塗布した場合、
水蒸気膜生成による抵抗は著しく低下しロールの押付は
力を少し上げれば排除できる程度になるので、加熱帯鋼
上に水溶液の塗布により溶融塩皮膜の生成が可能である
。従って、溶融塩皮膜の厚さは供給する水溶液の濃度に
よっても制御可能であり、その厚さが１μｍ以下の場合
には機械的方法よりも制御か容易である。Mixed salts containing 1 part of sodium hydroxide to 3 parts of potassium hydroxide, or mixtures containing an oxidizing agent such as sodium nitrate or potassium nitrate, lower the softening point to 150 to 200C. It is possible,
The reaction of formula (1) above can be carried out at a temperature of 200 to 300C. When an aqueous solution of such a mixed salt is applied to heated strip steel at a temperature of around 300C instead of molten salt,
The resistance due to the formation of a water vapor film is significantly reduced and the pressing force of the rolls can be eliminated by increasing the force a little, so it is possible to form a molten salt film on the heating strip by applying an aqueous solution. Therefore, the thickness of the molten salt film can also be controlled by the concentration of the aqueous solution supplied, and when the thickness is 1 μm or less, it is easier to control than the mechanical method.
また、このように処理温度が２００〜３００Ｃになり、
水溶液の使用が可能であるので、ロール材質は鉄鋼に限
定することはなく弗素系のゴム、プラスチック等をライ
ニングしたロールの使用も可能である。従ってライニン
グしたｐ−ルの使用により、帯鋼表面の傷の生成を防止
でき、さらに、ロール押付力を増して帯鋼に多少の凹凸
や歪みがあっても均一に塗布することが可能になる。In addition, in this way, the processing temperature is 200 to 300C,
Since an aqueous solution can be used, the roll material is not limited to steel, and rolls lined with fluorine rubber, plastic, etc. can also be used. Therefore, by using a lined P-ru, it is possible to prevent the formation of scratches on the surface of the steel strip, and by increasing the roll pressing force, it is possible to apply uniformly even if the steel strip has some unevenness or distortion. .
以上詳記したように、本発明では軟化点２００Ｃ以下の
水酸化ナトリウム及び水酸カリウムの混合物を主成分と
する溶融塩を使用するものであるが、これは、前述した
ように、２００７？を越える溶融塩である場合、この温
度に耐えるロール材料としては鉄鋼製のものに限られて
しまう。そして、この鉄鋼製ロールでは、骸ロールと加
熱帯状物とが接触し、この加熱帯状物の表面を傷つける
ことになるからである。As described in detail above, the present invention uses a molten salt mainly composed of a mixture of sodium hydroxide and potassium hydroxide with a softening point of 200C or less, but as described above, this is a molten salt mainly composed of a mixture of sodium hydroxide and potassium hydroxide with a softening point of 200C or less. If the molten salt exceeds this temperature, roll materials that can withstand this temperature are limited to those made of steel. This is because, with this steel roll, the shell roll and the heating strip come into contact with each other, which may damage the surface of the heating strip.
本発明において、上記溶融塩としては、軟化点１５０〜
２−０００Ｑ水酸化ナトリウム−水酸化カリウム混合塩
（混合比１対％〜３）が好ましく、また、この混合塩に
硝酸ナトリウムや硝酸カリウムなどの酸化剤を配合した
混合物（軟化点１５０〜２００Ｃ）が好ましい。In the present invention, the molten salt has a softening point of 150 to
2-000Q sodium hydroxide-potassium hydroxide mixed salt (mixing ratio 1:% to 3) is preferable, and a mixture of this mixed salt with an oxidizing agent such as sodium nitrate or potassium nitrate (softening point 150-200C) is preferable. preferable.
また、本発明では、上記混合塩ないしは混合物の水溶液
も使用することができるものである。Further, in the present invention, an aqueous solution of the above mixed salts or mixtures can also be used.
以下、第１図及び第２図に基づいて本発明の詳細な説明
する。第１図は本発明の実施例である加熱帯鋼の処理装
置の側断面図であり、第２図は、本発明の他の実施例で
ある同処理装置の側断面図である。Hereinafter, the present invention will be explained in detail based on FIGS. 1 and 2. FIG. 1 is a side sectional view of a processing apparatus for heated strip steel, which is an embodiment of the present invention, and FIG. 2 is a side sectional view of the same processing apparatus, which is another embodiment of the present invention.
第１図において、加熱帯鋼１は下方へ移動しており、鉄
製の塗布ロール２により該加熱帯鋼１０両面に水酸化ナ
トリウム−水酸化カリウム−硝酸ナトリウム溶融塩を塗
布する。溶融塩４は複数の供給ロール３を経て塗布ロー
ルへ供給される。溶融塩の供給量は、３の相対的な回転
速度、回転方向、及びロールの数などにより調節でき、
塗布溶融塩膜の厚さが約１μｍ になるように帯鋼の移
動速度、スケール性状などに応じて調節する。ロール洗
浄装置５でブラシ水洗等により、ロール表面に固着した
異物や塩を除去し、常にロール表面を清浄に保つ。In FIG. 1, the heating strip 1 is moving downward, and a coating roll 2 made of iron applies molten sodium hydroxide-potassium hydroxide-sodium nitrate to both sides of the heating strip 10. The molten salt 4 is supplied to the coating roll via a plurality of supply rolls 3. The amount of molten salt supplied can be adjusted by the relative rotation speed, rotation direction, number of rolls, etc.
The thickness of the applied molten salt film is adjusted according to the moving speed of the steel strip, scale properties, etc. so that the thickness of the applied molten salt film is about 1 μm. The roll cleaning device 5 removes foreign matter and salt stuck to the roll surface by washing with brushes or the like to keep the roll surface clean at all times.
第２図には、ライニングロール及び水溶′８Ｊ１．を用
いた例を示すものであって、塗布ロール２は弗素系のゴ
ムライニング６がしてあり、アルカリ塩水溶液４′は供
給ロール３を経て塗布ロール２に供給される。この場合
、塗布溶融塩膜の厚さは使用するアルカＩＪ ｕ水溶液
の濃度によっても調節でき、第１図の例に比較して、更
に薄い均一な膜の塗布が可能である。FIG. 2 shows a lining roll and aqueous '8J1. The coating roll 2 is lined with a fluorine rubber lining 6, and the aqueous alkali salt solution 4' is supplied to the coating roll 2 via the supply roll 3. In this case, the thickness of the applied molten salt film can also be adjusted by the concentration of the alkali IJu aqueous solution used, and it is possible to apply a thinner and more uniform film than in the example shown in FIG.
本発明は、以上詳記したように、軟化点２００Ｃ以下の
溶融塩ないしはその水溶液を、ロールを用いて加熱帯状
物に塗布するものであるから、該加熱帯状物の表面に連
続的に薄く、しかも、均一に塗布することができる効果
を奏し、溶融塩ないしはその水溶液の損失量を極小とす
ることができる効果を奏するものである。また、本発明
では、軟化点が２００Ｃ以下の溶融塩な用いるものであ
るから、塗布用ロールの相質を鉄鋼製のものとする必要
がなく、該ロールとしてゴムまたはプラスチックをライ
ニングしたものを使用することができるので、加熱帯状
物の表面を傷つけることがない効果が生ずるものである
。As detailed above, the present invention involves applying a molten salt or an aqueous solution thereof having a softening point of 200C or less to a heating strip using a roll, so that the surface of the heating strip is continuously and thinly coated. Moreover, it has the effect of being able to be applied uniformly, and the amount of loss of the molten salt or its aqueous solution can be minimized. In addition, in the present invention, since a molten salt with a softening point of 200C or less is used, there is no need for the coating roll to be made of steel, and the roll is lined with rubber or plastic. As a result, the surface of the heating strip is not damaged.
第１図は本発明の実施例である加熱帯鋼の処理装置の側
断面図であり、第２図は本発明の他の実施例である同処
理装置の側断面図である。
１・・・加熱帯鋼
２・・・塗布日−ル
３・・・供給に一ル
４・・・溶融塩
４１・・・アルカリ塩水溶液
５・・・ロール洗浄装置
６・・・ゴムライニング
復代理人 内 １） 明
復代理人 萩 原 亮 −FIG. 1 is a side sectional view of a processing apparatus for heated strip steel, which is an embodiment of the present invention, and FIG. 2 is a side sectional view of the same processing apparatus, which is another embodiment of the present invention. 1...Heating strip steel 2...Coating date 3...1 supply 4...molten salt 41...alkaline salt aqueous solution 5...roll cleaning device 6...rubber lining recovery Agents 1) Meifuku agent Ryo Hagiwara -
Claims (1)
て、軟化点が２００Ｃ以下の水酸化ナトリウム及び水酸
化カリウムの混合物を主成分とする溶融塩またはその水
溶液を用い、ロールにて塗布することを特徴とする加熱
帯状物の処理方法。 ２、 ロールがゴムまたはプラスチックライニ、ングし
たものである特許請求の範囲第１項記載の加熱帯状物の
処理方法。[Claims] t. A method of pre-treating the surface of a heating strip with a molten salt, using a molten salt or an aqueous solution thereof whose main component is a mixture of sodium hydroxide and potassium hydroxide having a softening point of 200C or less, A method for treating a heated strip, characterized by applying the coating using a roll. 2. The method for treating a heated strip according to claim 1, wherein the roll is lined with rubber or plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3517584A JPS60181285A (en) | 1984-02-28 | 1984-02-28 | Treatment of heated belt-like material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3517584A JPS60181285A (en) | 1984-02-28 | 1984-02-28 | Treatment of heated belt-like material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60181285A true JPS60181285A (en) | 1985-09-14 |
Family
ID=12434511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3517584A Pending JPS60181285A (en) | 1984-02-28 | 1984-02-28 | Treatment of heated belt-like material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60181285A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03191078A (en) * | 1989-12-20 | 1991-08-21 | Sumitomo Heavy Ind Ltd | Method and apparatus for descaling with molten salt |
| WO1994003651A3 (en) * | 1992-08-05 | 1994-08-18 | Kolene Corp | Method, apparatus and salt for descaling metal strip |
| US5505786A (en) * | 1992-08-05 | 1996-04-09 | Kolene Corporation | Method for treating surface oxides on a metal alloy strip |
| JP2002332582A (en) * | 2001-05-09 | 2002-11-22 | Parker Corp | Pretreatment method for descaling stainless steel |
| JP2002371395A (en) * | 2001-06-15 | 2002-12-26 | Parker Corp | High-speed descaling of stainless steel. |
| JP2014237176A (en) * | 2009-01-20 | 2014-12-18 | レーザーコイル・テクノロジーズ、エルエルシーＬａｓｅｒｃｏｉｌ Ｔｅｃｈｎｏｌｏｇｉｅｓ， ＬＬＣ | Laser blanking from coil strip contour conveyer system |
-
1984
- 1984-02-28 JP JP3517584A patent/JPS60181285A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03191078A (en) * | 1989-12-20 | 1991-08-21 | Sumitomo Heavy Ind Ltd | Method and apparatus for descaling with molten salt |
| WO1994003651A3 (en) * | 1992-08-05 | 1994-08-18 | Kolene Corp | Method, apparatus and salt for descaling metal strip |
| US5505786A (en) * | 1992-08-05 | 1996-04-09 | Kolene Corporation | Method for treating surface oxides on a metal alloy strip |
| JP2002332582A (en) * | 2001-05-09 | 2002-11-22 | Parker Corp | Pretreatment method for descaling stainless steel |
| JP2002371395A (en) * | 2001-06-15 | 2002-12-26 | Parker Corp | High-speed descaling of stainless steel. |
| JP2014237176A (en) * | 2009-01-20 | 2014-12-18 | レーザーコイル・テクノロジーズ、エルエルシーＬａｓｅｒｃｏｉｌ Ｔｅｃｈｎｏｌｏｇｉｅｓ， ＬＬＣ | Laser blanking from coil strip contour conveyer system |
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