JPH02155642A - Preparation of resin coated steel plate excellent in draw and wiping-resistant processability - Google Patents
Preparation of resin coated steel plate excellent in draw and wiping-resistant processabilityInfo
- Publication number
- JPH02155642A JPH02155642A JP30966588A JP30966588A JPH02155642A JP H02155642 A JPH02155642 A JP H02155642A JP 30966588 A JP30966588 A JP 30966588A JP 30966588 A JP30966588 A JP 30966588A JP H02155642 A JPH02155642 A JP H02155642A
- Authority
- JP
- Japan
- Prior art keywords
- film
- steel strip
- resin
- draw
- wiping
- 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
- 229920005989 resin Polymers 0.000 title claims abstract description 45
- 239000011347 resin Substances 0.000 title claims abstract description 45
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- 238000001816 cooling Methods 0.000 claims abstract description 13
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 12
- 239000011651 chromium Substances 0.000 claims abstract description 12
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000007747 plating Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 229920006267 polyester film Polymers 0.000 claims abstract description 3
- 238000010409 ironing Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000576 Laminated steel Inorganic materials 0.000 description 2
- 229920006127 amorphous resin Polymers 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000001166 anti-perspirative effect Effects 0.000 description 1
- 239000003213 antiperspirant Substances 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 235000014171 carbonated beverage Nutrition 0.000 description 1
- 229920006038 crystalline resin Polymers 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 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、ビール缶、炭酸飲料缶、ジュース缶等の食品
缶用素材及び、制汗剤、除毛剤等を内容物としたエアゾ
ール缶用素材として好適な樹脂被覆鋼板の製造方法に関
する。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to materials for food cans such as beer cans, carbonated beverage cans, and juice cans, and aerosol cans containing antiperspirants, hair removers, etc. The present invention relates to a method of manufacturing a resin-coated steel sheet suitable as a material for use in industrial applications.
（従来の技術）
食品缶等の容器用材料としては、これまで錫めっき鋼板
、クロム処理鋼板、ニッケルめっき鋼板等の素材に対し
て熱硬化性樹脂をコーティングしたものが使用されてい
る。このコーティングは、溶液状にした樹脂を使用して
いるため、溶剤の蒸発や塗料の硬化に時間がかかり、ま
た熱エネルギーを多量に消費することになる。しかも、
−度に充分な厚みをもつ塗膜を形成することが困難なた
めに、塗装・焼付を複数回繰り返すことや、塗膜の密着
性を向上するために鋼帯表面に塗装前処理を施すことが
必要となる。この点で、更に生産性及び省エネルギーに
問題があるものとなる。(Prior Art) As materials for containers such as food cans, materials such as tin-plated steel sheets, chromium-treated steel sheets, and nickel-plated steel sheets coated with thermosetting resin have been used. Since this coating uses a resin in the form of a solution, it takes time for the solvent to evaporate and the paint to harden, and it also consumes a large amount of thermal energy. Moreover,
- Because it is difficult to form a coating film with sufficient thickness, it is necessary to repeat painting and baking multiple times, and to apply pre-painting treatment to the surface of the steel strip to improve the adhesion of the coating film. Is required. In this respect, there are further problems in terms of productivity and energy saving.
そこで、このような表面処理鋼板に代わるものとして、
樹脂ラミネート鋼板が開発されている。Therefore, as an alternative to such surface-treated steel sheets,
Resin-laminated steel sheets have been developed.
たとえば、特公昭６１−３６７６号公報では、有機樹脂
フィルムを仮圧着し、次いで鋼帯温度を昇温して樹脂フ
ィルムを本圧着している。For example, in Japanese Patent Publication No. 61-3676, an organic resin film is temporarily pressed, and then the temperature of the steel strip is raised to permanently press the resin film.
しかし、−船釣な市販の樹脂フィルムは結晶質のもので
ある。この結晶質の樹脂フィルムは、非結晶質の樹脂フ
ィルムに比較して、鋼帯に対する密着性が弱く、僅かな
力が加わることによっても下地の鉄層からＩ、す離する
。また、耐加工性にも劣り、樹脂フィルムに亀裂を生じ
、下地の鉄層が露出する。したがって、この積層鋼板に
対して深絞り・しごき等の苛酷な加工を加えて缶材を製
造するとき、樹脂層に亀裂・剥離が生じ、下地の鉄層が
内容物に触れ、腐食が進行することになる。このため従
来の樹脂被覆鋼板は深絞り・しごき等の苛酷な加工には
適用できなかった。However, commercially available resin films are crystalline. This crystalline resin film has weaker adhesion to the steel strip than an amorphous resin film, and even when a slight force is applied, it separates from the underlying iron layer. It also has poor processing resistance, causing cracks in the resin film and exposing the underlying iron layer. Therefore, when this laminated steel plate is subjected to severe processing such as deep drawing and ironing to produce can stock, cracks and peeling occur in the resin layer, and the underlying iron layer comes into contact with the contents, causing corrosion to progress. It turns out. For this reason, conventional resin-coated steel sheets cannot be applied to severe processing such as deep drawing and ironing.
（発明が解決しようとする課題）
本発明は、このような樹脂被覆口板のもつ問題を克服し
、優れた密着性と耐加工性とを有する非結晶質樹脂層を
鋼板表面に形成することにより、耐絞り・しごき加工性
の優れた樹脂被覆鋼板を提供することを目的とする。(Problems to be Solved by the Invention) The present invention overcomes the problems of such a resin-coated mouth plate and forms an amorphous resin layer having excellent adhesion and process resistance on the surface of a steel plate. The purpose of the present invention is to provide a resin-coated steel sheet with excellent drawing resistance and ironing workability.
（課題を解決するための手段）
本発明の要旨は、鋼帯の片面に０．３ ｇ／ｒｒＴ以上
の錫めっき層、また、他面に５ｍｇ／ｒｒｒ以上のクロ
ム処理層を有した両面異層被覆鋼帯のクロム処理面に厚
さ１５〜１００−の融点（Ｔｍ）が１５０〜２６２℃の
ポリエステル系フィルムを接着するにあたり、両面異層
被覆鋼帯をＴｍ−１００℃〜Ｔｍ＋１００℃に加熱して
該フィルムを圧着し、続いて該フィルムをＴ＋ｙ＋ −
Ｔｍ ＋ １５０℃に昇温しで融着せしめた後、１０℃
／秒以上の冷却速度で冷却して非結晶質割合を５０〜１
００％とすることを特徴とする耐絞り・しごき加工性の
すぐれた樹脂被覆鋼板の製造方法にある。(Means for Solving the Problems) The gist of the present invention is to provide a steel strip having a tin plating layer of 0.3 g/rrT or more on one side and a chromium treatment layer of 5 mg/rrr or more on the other side. When adhering a polyester film having a thickness of 15 to 100°C and a melting point (Tm) of 150 to 262°C to the chromium-treated surface of the double-sided coated steel strip, the double-sided coated steel strip is heated to Tm - 100°C to Tm + 100°C. to press the film, and then press the film to T+y+ −
After fusing by raising the temperature to Tm + 150℃, 10℃
The amorphous ratio is reduced to 50 to 1 by cooling at a cooling rate of 1/sec or more.
00% of the resin-coated steel sheet with excellent drawing resistance and ironing workability.
以下、本発明をさらに詳細に説明する。The present invention will be explained in more detail below.
第１図は錫めっき量と絞り・しごき加工性との関係を示
す。絞り・しごき加工を行なうためには、０．３ｇ／ｒ
＋（以上の錫めっき量が必要である。Figure 1 shows the relationship between the amount of tin plating and the drawing and ironing workability. For drawing and ironing, 0.3g/r
The amount of tin plating greater than + (is required.
また、第２図はクロム処理面のクロム付着量による樹脂
フィルムと鋼板との密着性の関係を示す。Furthermore, FIG. 2 shows the relationship between the adhesion between the resin film and the steel plate depending on the amount of chromium deposited on the chromium-treated surface.
良好な密着性を得るためにはクロム付着量として５■／
ボ以上を必要とする。In order to obtain good adhesion, the amount of chromium deposited should be 5■/
Requires more than 100%.
第３図にポリエステル系樹脂フィルム厚を変化させた場
合の絞り・しごき加工後の樹脂フィルムの健全性（接着
性、被覆性）を示す。樹脂フィルム厚みとして１５μｍ
以上が必要である。FIG. 3 shows the soundness (adhesiveness, coverage) of the resin film after drawing and ironing when the thickness of the polyester resin film was varied. 15μm as resin film thickness
The above is necessary.
しかし、第４図かられかるように樹脂フィルムコストは
厚みにほぼ比例して増加するため性能を発揮するに足る
厚みとする必要があり、１００−を越えるとその効果が
飽和するので上限は１００μｍとする。However, as can be seen from Figure 4, the resin film cost increases almost in proportion to the thickness, so it is necessary to make it thick enough to exhibit its performance, and the effect is saturated when it exceeds 100 μm, so the upper limit is 100 μm. shall be.
樹脂の種類はポリオレフィン系、ビニル系等あるが、成
膜性及び耐加工性、耐食性、化学的安定性等の点からポ
リエステル系を使用する。Types of resin include polyolefin type, vinyl type, etc., but polyester type is used from the viewpoint of film formability, process resistance, corrosion resistance, chemical stability, etc.
第５図に圧着温度を変化させた場合の鋼帯への樹脂フィ
ルムの密着性を示す。Ｔｍ−１００℃以上にて良好な密
着性を示す。但し、Ｔｍ＋１００℃を越えると圧着ロー
ルマークが樹脂面に転写され、表面疵となる。FIG. 5 shows the adhesion of the resin film to the steel strip when the compression temperature was varied. Shows good adhesion at temperatures above Tm-100°C. However, if the temperature exceeds Tm+100°C, the pressure roll mark will be transferred to the resin surface, resulting in surface flaws.
第６図に、冷却開始直前温度と加工後樹脂フィルム健全
性との関係を示す。Ｔｍ以上にて加工後も良好な樹脂フ
ィルム健全性を示す。しかし、１”ｍ −１−１５０℃
を越えると発煙し樹脂特性が劣化する。FIG. 6 shows the relationship between the temperature immediately before the start of cooling and the soundness of the resin film after processing. Good resin film integrity is shown even after processing at temperatures above Tm. However, 1"m -1-150℃
If it exceeds this, smoke will be generated and the resin properties will deteriorate.
第７図に非結晶質割合と加工後樹脂フィルム健全性との
関係を示す。加工後においても樹脂フィルノ９の健全性
を保つためには非結晶質割合として５０％以」二必要で
ある。第８図に冷却速度と非結晶質割合との関係を示す
。非結晶質割合５０％以りを得るためには、冷却速度１
０℃／秒以上を必要とする。FIG. 7 shows the relationship between the amorphous proportion and the soundness of the resin film after processing. In order to maintain the integrity of the resin FILNO 9 even after processing, it is necessary that the amorphous content be 50% or more. FIG. 8 shows the relationship between cooling rate and amorphous proportion. In order to obtain an amorphous proportion of 50% or more, the cooling rate is 1.
0°C/sec or higher is required.
（実施例）
以下、図面を参照しながら、実施例により本発明を説明
する。(Examples) Hereinafter, the present invention will be explained by examples with reference to the drawings.
第９図は、本発明に従って樹脂被覆鋼板を製造するライ
ンを概略的に説明する図である。FIG. 9 is a diagram schematically illustrating a line for manufacturing resin-coated steel sheets according to the present invention.
本実施例において、樹脂フィルム１が被覆される鋼帯２
は、矢印で示すように右方向に連続的に走行している。In this embodiment, the steel strip 2 covered with the resin film 1 is
is running continuously to the right as shown by the arrow.
他方、樹脂フィルム１は、シート状として銅帯１０１面
に送り込む。送り込まれた樹脂フィルム１は、上下圧着
ロール４，５によって、加熱装置３にて加熱された鋼帯
２の表面に押し付けられる。On the other hand, the resin film 1 is fed in the form of a sheet onto the surface of the copper strip 101. The fed resin film 1 is pressed by upper and lower pressure rolls 4 and 5 onto the surface of the steel strip 2 heated by the heating device 3.
樹脂フィルム１が押し付けられた鋼帯２は、次いで加熱
装置６によって必要な温度まで昇温された後、冷却装置
７にて冷却されることにより耐絞り・しごき加工性のす
ぐれた樹脂被覆鋼板となる。The steel strip 2 to which the resin film 1 has been pressed is then heated to a required temperature by a heating device 6, and then cooled by a cooling device 7, thereby forming a resin-coated steel sheet with excellent drawing resistance and ironing resistance. Become.
表１に実際に樹脂被覆鋼帯を製造した例を示す。Table 1 shows examples of actually manufacturing resin-coated steel strips.
いずれも耐絞り・しごき加工性のすぐれた鋼板が表１．
力侃列
得られている。All of the steel plates shown in Table 1 have excellent drawing resistance and ironing workability.
Power has been gained.
（発明の効果）
本発明よれば、耐絞り・しごき加工性にすぐれた樹脂被
覆鋼板を提供することができる。(Effects of the Invention) According to the present invention, a resin-coated steel sheet with excellent drawing resistance and ironing workability can be provided.
第１図は絞り・しごき加工性と錫めっき量との関係、第
２図は銅帯への樹脂フィルム密着性とクロム付着量との
関係、第３図は加工後樹脂フィルム健全性と樹脂フィル
ム厚との関係、第４図は樹脂フィルムコストと樹脂フィ
ルム厚との関係、第５図は鋼帯への樹脂フィルム密着性
と圧着温度との関係、第６図は加工後樹脂フィルム健全
性と冷却開始直前温度との関係、第７図は加工後樹脂フ
ィルム健全性と非結晶質割合との関係、第８図は非結晶
質割合と冷却速度との関係を夫々示す線図、第９図は樹
脂被覆鋼帯の製造ラインの例を示す概略図である。
１：樹脂フィルム、２：鋼帯、３：加熱装置、４：下圧
着ロール、５：下圧着ロール、６：加熱装置、７：冷却
装置。
第１図
７．０
揚砂・；量外２
第２図
り［Ｊムイ′ｆ＊ｖ ”ｚヅンち、２１ノＮ ７ｘ
ノＬｌ−Ｒ、ＩＩ ７”樹脂力ｙｉｌＪｉ 、ｔｌｍ
第８図
玲「販
°彷
第５因
圧肴漫度
Ｃ
第６図
稗開鉛直荊温度
第９図
３：４３匹に惺
６：加弗辰１Figure 1 shows the relationship between drawing and ironing workability and the amount of tin plating, Figure 2 shows the relationship between the adhesion of the resin film to the copper strip and the amount of chromium deposited, and Figure 3 shows the soundness of the resin film after processing and the amount of tin plating. Figure 4 shows the relationship between resin film cost and resin film thickness, Figure 5 shows the relationship between resin film adhesion to steel strip and compression temperature, and Figure 6 shows the relationship between resin film soundness after processing. Figure 7 is a diagram showing the relationship between the temperature immediately before the start of cooling, the relationship between the soundness of the resin film after processing and the amorphous ratio, Figure 8 is a diagram showing the relationship between the amorphous ratio and the cooling rate, and Figure 9 1 is a schematic diagram showing an example of a production line for resin-coated steel strips. 1: Resin film, 2: Steel strip, 3: Heating device, 4: Lower pressure roll, 5: Lower pressure roll, 6: Heating device, 7: Cooling device. Fig. 1 7.0 Unloaded sand・; out of quantity 2 2nd plan
ノ Ll-R, II 7"Resin power yilJi,tlm Fig. 8 Ling "Sales ° 5th factor pressure appetizing degree C Fig. 6 Open vertical axis temperature Fig. 9 3: 43 fish 6: Addition Dragon 1
Claims (1)
、他面に５ｍｇ／ｍ＾２以上のクロム処理層を有した両
面異層被覆鋼帯のクロム処理面に厚さ１５〜１００μｍ
の融点（Ｔｍ）が１５０〜２６２℃のポリエステル系フ
ィルムを接着するにあたり、両面異層被覆鋼帯をＴｍ−
１００℃〜Ｔｍ＋１００℃に加熱して該フィルムを圧着
し、続いて該フィルムをＴｍ〜Ｔｍ＋１５０℃に昇温し
て融着せしめた後、１０℃／秒以上の冷却速度で冷却し
て非結晶質割合を５０〜１００％とすることを特徴とす
る耐絞り・しごき加工性のすぐれた樹脂被覆鋼板の製造
方法。A steel strip coated with a double-sided different layer has a tin plating layer of 0.3 g/m^2 or more on one side and a chromium treatment layer of 5 mg/m^2 or more on the other side, and the chromium-treated surface has a thickness of 15 ~100μm
When bonding a polyester film with a melting point (Tm) of 150 to 262°C, a steel strip coated with different layers on both sides is bonded to a Tm-
The film is compressed by heating to 100°C to Tm + 100°C, then the film is heated to Tm to Tm + 150°C to fuse, and then cooled at a cooling rate of 10°C/sec or more to form an amorphous material. A method for producing a resin-coated steel sheet with excellent drawing resistance and ironing workability, characterized in that the ratio is 50 to 100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63309665A JP2691756B2 (en) | 1988-12-07 | 1988-12-07 | Method for producing resin-coated steel sheet with excellent resistance to cresting and ironing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63309665A JP2691756B2 (en) | 1988-12-07 | 1988-12-07 | Method for producing resin-coated steel sheet with excellent resistance to cresting and ironing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02155642A true JPH02155642A (en) | 1990-06-14 |
| JP2691756B2 JP2691756B2 (en) | 1997-12-17 |
Family
ID=17995790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63309665A Expired - Fee Related JP2691756B2 (en) | 1988-12-07 | 1988-12-07 | Method for producing resin-coated steel sheet with excellent resistance to cresting and ironing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2691756B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997037846A1 (en) * | 1996-04-10 | 1997-10-16 | Toyo Kohan Co., Ltd. | Metallic sheet covered with polyester resin film and having high workability, and method of manufacturing same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5882717A (en) * | 1981-11-13 | 1983-05-18 | Toyo Kohan Co Ltd | Manufacture of polyester resin film-coated metal plate |
| JPS60168643A (en) * | 1984-02-14 | 1985-09-02 | 東洋製罐株式会社 | Coated steel plate for drawing die can and drawing die can |
| JPS61149340A (en) * | 1984-12-25 | 1986-07-08 | Toyo Kohan Co Ltd | Manufacture of polyester resin film-covered metal plate |
-
1988
- 1988-12-07 JP JP63309665A patent/JP2691756B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5882717A (en) * | 1981-11-13 | 1983-05-18 | Toyo Kohan Co Ltd | Manufacture of polyester resin film-coated metal plate |
| JPS60168643A (en) * | 1984-02-14 | 1985-09-02 | 東洋製罐株式会社 | Coated steel plate for drawing die can and drawing die can |
| JPS61149340A (en) * | 1984-12-25 | 1986-07-08 | Toyo Kohan Co Ltd | Manufacture of polyester resin film-covered metal plate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997037846A1 (en) * | 1996-04-10 | 1997-10-16 | Toyo Kohan Co., Ltd. | Metallic sheet covered with polyester resin film and having high workability, and method of manufacturing same |
| US6482526B2 (en) | 1996-04-10 | 2002-11-19 | Toyo Kohan Co., Ltd | Metallic sheet covered with polyester resin film and having high workability, and method of manufacturing same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2691756B2 (en) | 1997-12-17 |
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