JPH04180595A - Method for controlling alloy layer of tin-plated steel sheet - Google Patents
Method for controlling alloy layer of tin-plated steel sheetInfo
- Publication number
- JPH04180595A JPH04180595A JP30719590A JP30719590A JPH04180595A JP H04180595 A JPH04180595 A JP H04180595A JP 30719590 A JP30719590 A JP 30719590A JP 30719590 A JP30719590 A JP 30719590A JP H04180595 A JPH04180595 A JP H04180595A
- Authority
- JP
- Japan
- Prior art keywords
- plated steel
- heating
- steel sheet
- tin
- strip
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 21
- 239000010959 steel Substances 0.000 title claims abstract description 21
- 239000000956 alloy Substances 0.000 title claims abstract description 11
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- 238000010791 quenching Methods 0.000 abstract description 13
- 230000006698 induction Effects 0.000 abstract description 11
- 238000007747 plating Methods 0.000 abstract description 11
- 230000000171 quenching effect Effects 0.000 abstract description 6
- 229910000640 Fe alloy Inorganic materials 0.000 abstract 1
- 229910020900 Sn-Fe Inorganic materials 0.000 abstract 1
- 229910019314 Sn—Fe Inorganic materials 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 230000002950 deficient Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 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
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005275 alloying Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Electroplating Methods And Accessories (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、錫めっき鋼板の合金層制御方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for controlling an alloy layer of a tin-plated steel sheet.
（従来技術と発明が解決しようとする課題）錫めっき鋼
板は、一般にめっき後鏡面仕上げとして、リフロー処理
（めっき金属を溶融処理）し、次いで連設したタンク内
水中へ浸漬するクエンチ処理を施すものである。(Prior art and problem to be solved by the invention) Tin-plated steel sheets are generally subjected to reflow treatment (melting treatment of the plated metal) to give a mirror finish after plating, and then subjected to quench treatment by immersing it in water in a series of tanks. It is.
このようなリフロー処理においては、第２図に示すごと
く、リフロー装置１人側とクエンチ装置出側に通電ロー
ル２，２ａを配設し、めっき鋼板３（帯）に通電し、電
気抵抗加熱による加熱するとともに、リフロー装置ｌｌ
出側で電気誘導加熱装置４による加熱付加で、約２５０
℃に加熱してリフロー処理を終え、クエンチタンク５へ
導き、クエンチ処理を施すものモある。In such a reflow process, as shown in Fig. 2, energizing rolls 2 and 2a are provided on the one-person side of the reflow apparatus and the exit side of the quench apparatus, and electricity is applied to the plated steel plate 3 (band) to heat the plated steel plate by electrical resistance heating. Along with heating, reflow equipment
Approximately 250
There is also a method in which the reflow process is completed by heating to a temperature of 0.degree.
このリフロー出側からクエンチまでの間は、設備によっ
て若干具なるが、１．５〜２．５ｍ大気に曝されて移動
する、いわゆる空走距Ｍ（時間）になっており、この空
走距離の移動中にも電気抵抗加熱による加熱が続けられ
ている。The distance from this reflow outlet to the quench is 1.5 to 2.5 m exposed to the atmosphere, which varies slightly depending on the equipment, and is a so-called empty running distance M (time). Heating by electrical resistance heating continues even during movement.
従って、めっき前処理工程、めっき工程のトラブル、品
質チエツク等により、通板速度を低速に移行すると、空
走時間が長くなり、めっき金属（錫）と鉄（鋼板）の合
金量が過多になりめっき表面が乳白色となり、鏡面仕上
げにならず商品価値をなくすことになる。Therefore, if the threading speed is shifted to a lower speed due to problems in the plating pretreatment process, plating process, quality checks, etc., the idle running time becomes longer and the amount of alloy between the plating metal (tin) and iron (steel sheet) becomes excessive. The plating surface becomes milky white, does not have a mirror finish, and loses its commercial value.
特にめっき付着量１．５ｇ／ｎｆ以下の薄付着めっきの
場合には、顕著である等の欠点をともなうものである。In particular, in the case of thinly deposited plating with a plating amount of 1.5 g/nf or less, there are disadvantages such as conspicuous.
（課題を解決するための手段）
本発明は、錫めっき鋼板のリフロー処理に際し、めっき
鋼板を電気抵抗加熱により予熱後、該電気抵抗加熱を停
止し、次いで、電気誘導加熱により錫融点〜２５０℃に
加熱した後、クエンチ処理することを特徴とする、錫め
っき鋼板の合金層制御方法に関するものである。(Means for Solving the Problems) In the present invention, when reflowing a tin-plated steel plate, the plated steel plate is preheated by electric resistance heating, the electric resistance heating is stopped, and then the tin melting point is heated to 250°C by electric induction heating. The present invention relates to a method for controlling an alloy layer of a tin-plated steel sheet, which is characterized by heating to a temperature and then performing a quenching treatment.
本発明の一例を図面に基いて説明する。An example of the present invention will be explained based on the drawings.
第１図において、リフロー装置１人側と、電気誘導加熱
装置４の前に通電ロール２，２ａを配設し ｉｔめっき
鋼板３（帯）に通電して、電気抵抗加熱により予熱する
。この予熱温度としては、１８０〜２００℃に予熱し１
次いで電気誘導加熱装置４により、めっき金属（＃ｌ）
の融点（２３２℃）〜２５０℃に加熱し、リフロー処理
を終え次いでクエンチタンク５へ導きクエンチ処理を施
すものである。In FIG. 1, energizing rolls 2 and 2a are disposed on the one-person side of the reflow apparatus and in front of the electric induction heating apparatus 4, and electricity is applied to the IT-plated steel plate 3 (strip) to preheat it by electric resistance heating. The preheating temperature is 180~200℃.
Then, using the electric induction heating device 4, the plated metal (#l)
The melting point (232 DEG C.) to 250 DEG C. is heated, the reflow treatment is completed, and the material is then led to a quench tank 5 where it is subjected to a quench treatment.
しかして、上記電気誘導加熱後、クエンチ処理に至るま
での間は加熱がないので、合金層の成長がほとんどなく
、従って電気誘導加熱温度の設定で確実に合金量を調整
でき、耐食性１表面仕上げ（ｆｉ面仕上げ）を施すこと
ができる。However, since there is no heating after the electric induction heating described above until the quenching process, there is almost no growth of the alloy layer. Therefore, the amount of alloy can be reliably adjusted by setting the electric induction heating temperature, and the corrosion resistance 1 surface finish is achieved. (fi surface finish) can be applied.
又上記予熱温度の１８０〜２００℃は、次いで加熱（誘
導加熱）により、めっき金属の融点〜２５０℃の加熱が
迅速にでき、しかも合金過多が確実に防止できる温度で
あり好適なものである。Further, the above preheating temperature of 180 to 200°C is suitable because it is then able to rapidly heat the plating metal to the melting point of the plated metal to 250°C by heating (induction heating), and also reliably prevents over-alloying.
（実施例） 次に本発明方法の実施例を挙げる。(Example) Next, examples of the method of the present invention will be given.
注ｌ：めっき鋼板（帯）厚は０．２２ｍ。Note 1: The plated steel plate (strip) thickness is 0.22m.
注２＝錫めっきは通常の電気めっきによる。Note 2 = Tin plating is done by normal electroplating.
注３：実施例：予熱温度は、電気抵抗加熱により施し、
予熱温度に到達後、加熱を停止し、次いで電気誘導加熱
により、所定温度に加熱した。Note 3: Example: The preheating temperature was applied by electric resistance heating,
After reaching the preheating temperature, heating was stopped and then heated to a predetermined temperature by electric induction heating.
比較例：電気抵抗加熱後、電気誘導加熱時も併用加熱し
た。Comparative example: After electric resistance heating, electric induction heating was also performed.
注４：クエンチ迄の時間は電気誘導加熱後、加熱停止か
らクエンチまでの時間。（比較例は、クエンチ迄電気抵
抗加熱を施した）
注５＝表面状況は目視判定。Note 4: Time until quenching is the time from stopping heating to quenching after electric induction heating. (In the comparative example, electrical resistance heating was applied until quenching.) Note 5: Surface condition was determined visually.
（発明の効果）
かくすることにより、合金層量の制御が確実にでき、表
面仕上げが美れい（１面）にでき商品価値を向上させる
ことができる。(Effects of the Invention) By doing so, the amount of alloy layer can be reliably controlled, the surface finish can be made beautiful (one surface), and the commercial value can be improved.
又合金層量が適正に制御でき耐食性を向上させることが
できる等の優れた効果が得られる６In addition, excellent effects such as being able to control the amount of alloy layer appropriately and improving corrosion resistance can be obtained6.
第１図は、本発明の一例を示す説明図、第２図は従来の
細めつき鋼板のリフロー処理及びクエンチ処理を示す説
明図である。
１・・・リフロー装置
２．２ａ・・・通電ロール
３・・・めっき鋼帯
４・・・電気誘導加熱
５・・・クエンチタンク
２０ ｌFIG. 1 is an explanatory diagram showing an example of the present invention, and FIG. 2 is an explanatory diagram showing a conventional reflow treatment and quench treatment of a thinned steel plate. 1... Reflow device 2.2a... Current roll 3... Plated steel strip 4... Electric induction heating 5... Quench tank 20 l
Claims (1)
抵抗加熱により予熱後、該電気抵抗加熱を停止し、次い
で電気誘導加熱により、錫融点〜２５０℃に加熱した後
、クエンチ処理することを特徴とする、錫めっき鋼板の
合金層制御方法。When reflowing a tin-plated steel sheet, the plated steel sheet is preheated by electric resistance heating, the electric resistance heating is stopped, and then the tin-plated steel sheet is heated to the melting point of tin to 250° C. and then quenched. , a method for controlling the alloy layer of tin-plated steel sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30719590A JPH04180595A (en) | 1990-11-15 | 1990-11-15 | Method for controlling alloy layer of tin-plated steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30719590A JPH04180595A (en) | 1990-11-15 | 1990-11-15 | Method for controlling alloy layer of tin-plated steel sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04180595A true JPH04180595A (en) | 1992-06-26 |
Family
ID=17966187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30719590A Pending JPH04180595A (en) | 1990-11-15 | 1990-11-15 | Method for controlling alloy layer of tin-plated steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04180595A (en) |
-
1990
- 1990-11-15 JP JP30719590A patent/JPH04180595A/en active Pending
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