JPH0441003A - Exterior use aluminum or aluminum alloy plate and its manufacture - Google Patents
Exterior use aluminum or aluminum alloy plate and its manufactureInfo
- Publication number
- JPH0441003A JPH0441003A JP14908390A JP14908390A JPH0441003A JP H0441003 A JPH0441003 A JP H0441003A JP 14908390 A JP14908390 A JP 14908390A JP 14908390 A JP14908390 A JP 14908390A JP H0441003 A JPH0441003 A JP H0441003A
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- surface roughness
- aluminum alloy
- alloy plate
- rolling
- 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
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims abstract description 22
- 230000003746 surface roughness Effects 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 19
- 238000005422 blasting Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 6
- 230000007547 defect Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 5
- 238000003754 machining Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000007788 roughening Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000010731 rolling oil Substances 0.000 description 1
- 238000004439 roughness measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/227—Surface roughening or texturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/005—Rolls with a roughened or textured surface; Methods for making same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B2003/001—Aluminium or its alloys
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は建築物、車輌等の外装板に用いられる外装用ア
ルミニウムまたはアルミニウム合金板に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an exterior aluminum or aluminum alloy plate used for exterior panels of buildings, vehicles, etc.
〔従来の技術］
建築物や車輌等の外装板としてアルミニウムまたはアル
ミニウム合金板が広く用いられているが、これらの用途
には比較的面積の広いものが用いられ、しかもその殆ど
がアルマイト処理やその他の表面処理されて使用されて
いる。[Prior Art] Aluminum or aluminum alloy plates are widely used as exterior plates for buildings, vehicles, etc., but plates with relatively large areas are used for these purposes, and most of them are anodized or otherwise coated. It is used after surface treatment.
従って外装板として第１に要求されるのは広い面積に亘
って均一な色調を保持しかつ表面欠陥のないことである
。Therefore, the first requirement for an exterior plate is to maintain a uniform color tone over a wide area and to be free from surface defects.
板の外観へ不均一を与える要因としては、１つは板の表
面粗度の不均一であり、他の１つは板の金属組織の不均
一である。One of the factors contributing to non-uniformity in the appearance of the plate is the non-uniformity of the surface roughness of the plate, and the other is the non-uniformity of the metal structure of the plate.
表面粗度の不均一による欠陥としては、送りマーク、ヘ
リングボーン、コーティングむら、ロールマーク、工、
ジマークと呼ばれるものが代表的なものであり、金属組
織の不均一による欠陥としては、ストラフチャー・スト
リークが代表的なものである。Defects caused by uneven surface roughness include feed marks, herringbones, coating unevenness, roll marks, machining,
A typical example is what is called a dim mark, and a typical defect due to non-uniform metal structure is a struture streak.
そして前者の発生防止には圧延条件の厳しい設定と、外
装材をロールに通板させる前にダミー材を通板させて、
ロール表面に均一な酸化層を生成させると共に、圧延油
の調整をばかっている。To prevent the former from occurring, strict rolling conditions must be set, and a dummy material must be passed through the rolls before the exterior material is passed through the rolls.
This creates a uniform oxidized layer on the roll surface and also allows for easy adjustment of the rolling oil.
後者の発生防止には、均一で微細な再結晶組織を有する
板を得るために鋳塊の組織コントロールから始まって熱
間圧延率、冷間圧延率および熱処理条件など全工程にま
たがって厳密な管理が必要となっている。To prevent the latter from occurring, in order to obtain a plate with a uniform and fine recrystallized structure, strict control is required throughout the entire process, starting from controlling the structure of the ingot, including the hot rolling rate, cold rolling rate, and heat treatment conditions. is needed.
しかしながら、上記のように鋳造から最終圧延に至るま
で厳密な条件設定を行っても、コントロールする要因が
あまりにも多く、しかも各条件の許容範囲が非常に狭い
ため、表面欠陥を完全に防止することはきわめて困難で
ある。However, even if strict conditions are set from casting to final rolling as described above, there are too many factors to control and the tolerance range for each condition is very narrow, making it impossible to completely prevent surface defects. is extremely difficult.
本発明はかかる状況に鑑み鋭意検討の結果、板にある程
度の表面欠陥を有していても表面処理後それを顕在化さ
せない方策を開発したものであり、請求項１の発明は、
最終圧延のロールにより、表面が表面粗度Ｒａ ＝０．
３〜１．６μｍに無方向に梨地処理されていることを特
徴とする外装用アルミニウムまたはアルミニウム合金板
であり、請求項２の発明は、ショツトブラスト法により
、表面粗度Ｒａ ＝０．５〜３．０ＪＩＩｌに梨地処理
したロールを用い、圧下率０．５〜１０％の最終圧延を
施すことにより、表面粗度Ｒａ ＝０．３〜１．６μに
無方向に梨地処理することを特徴とする外装用アルミニ
ウムまたはアルミニウム合金板の製造方法である。In view of this situation, the present invention has developed a method to prevent surface defects from becoming apparent after surface treatment even if the board has some degree of surface defects.
The surface roughness Ra = 0.
It is an exterior aluminum or aluminum alloy plate characterized by being non-directionally matte-finished to a thickness of 3 to 1.6 μm, and the invention according to claim 2 provides surface roughness Ra = 0.5 to 0.5 by shot blasting. It is characterized by using a roll that has been satin-finished to 3.0 JIIl and subjected to final rolling at a reduction rate of 0.5-10%, thereby imparting a satin-finishing process in a non-directional manner to a surface roughness Ra = 0.3-1.6μ. This is a method for manufacturing aluminum or aluminum alloy plates for exterior use.
ここにおいて、ＲａはＪＩＳ ＢＯ６０１に規定された
表面粗度測定法による数値である。Here, Ra is a value determined by the surface roughness measurement method specified in JIS BO601.
本発明は、アルミニウムまたはアルミニウム合金板の表
面を軽度に粗面化することにより、微細な表面欠陥の顕
在化を防止するという技術思想に基づくものである。The present invention is based on the technical idea of preventing minute surface defects from becoming apparent by slightly roughening the surface of an aluminum or aluminum alloy plate.
即ち、アルマイト処理および透明塗料の塗装後に検出さ
れる表面欠陥は無方向な入射光に対して、局部的に方向
性をもった反射光が発生し、これが欠陥として見えるも
のであり、すべての入射光に対してその反射光が無方向
であれば欠陥とはならないのである。In other words, surface defects detected after alumite treatment and the application of transparent paint are caused by the generation of locally directional reflected light in response to non-directional incident light, which is visible as a defect; If the reflected light is directionless, it is not a defect.
表面の粗面化の方法としては二種類の方法が考えられる
。一つは圧延後の板を使用直前に化学的処理により梨地
化する方法であり、もう一つは、梨地化処理された圧延
ロールを用いてその模様を板に転写する方法である。There are two possible methods for roughening the surface. One method is to chemically treat the rolled board to give it a satin finish immediately before use, and the other is to transfer the pattern onto the board using a matte finish roll.
しかしながら前者の方法の場合金属組織の不均一による
ストラフチャーストリーク等はむしろ顕在化することに
なり、かえって逆効果を招いてしまう。However, in the case of the former method, stracture streaks and the like due to non-uniformity of the metallographic structure become more apparent, causing the opposite effect.
後者の方法は圧延の最終通板時に、すでに梨地処理され
ている圧延ロールを用いて０．５〜１０％の軽圧下率圧
延により、その模様を板に転写するもので金属組織の影
響は全くうけない。The latter method transfers the pattern onto the plate by rolling at a light reduction rate of 0.5 to 10% using rolls that have already been satin-finished during the final passing of the plate, and there is no effect on the metal structure. I don't accept it.
圧延ロールの梨地処理の方法としてはショツトブラスト
法、放電加工法、およびレーザー加工法によるものが現
用されているが、本発明の用途にはジョンドプラスト法
によるのが最良である。The shot blasting method, the electrical discharge machining method, and the laser machining method are currently in use as a satin finish treatment method for a roll, but the John de Plast method is the best method for the use of the present invention.
その理由は放電加工法は局部的にスパークを生したり、
取り扱いが困難であり、レーザー加工法は無方向な反射
光を得るのには適さなく、もっとも容易に均一な無方向
の反射光を得やすいのはショツトブラスト法であるから
である。The reason is that the electric discharge machining method produces local sparks,
This is because it is difficult to handle and the laser processing method is not suitable for obtaining non-directional reflected light, whereas the shot blasting method is the easiest to obtain uniform non-directional reflected light.
次に本発明における種々の限定理由について説明する。Next, various reasons for limitations in the present invention will be explained.
板の梨地処理における表面粗度をＲａ０．３〜１．６−
と限定したのはＲａが０．３ ｔｎｈ未満の場合は表面
欠陥の顕在化を防止することができず１．６−を超える
と表面が荒れ過ぎて美観を損なうからである。The surface roughness of the plate in matte finish is Ra0.3~1.6-
The reason for this limitation is that if Ra is less than 0.3 tnh, surface defects cannot be prevented from becoming apparent, and if it exceeds 1.6, the surface becomes too rough and the appearance is impaired.
圧延ロールの表面を粗面化する方法をショア）ブラスト
法に限定した理由は、上記の通りであるが表面粗度を０
．５〜３．０ｔｎａと限定したのは圧延ロールの粗度は
板に１００％転写されるのではなく、板の硬度と圧下率
にもよるが高々７０％程度であることから、このように
限定したものである。すなわち０．５μ未満では圧下率
を変えても板に必要な表面粗度を与えることができず、
３．０−を超えると、逆に過剰の表面粗度を与えてしま
うからである。The reason why we limited the method of roughening the surface of the rolling roll to the shore blasting method is as mentioned above.
．． The roughness of the rolling roll was limited to 5 to 3.0 tna because the roughness of the rolling roll is not 100% transferred to the plate, but is only about 70% at most, depending on the hardness and rolling reduction of the plate. This is what I did. In other words, if it is less than 0.5μ, the required surface roughness cannot be given to the plate even if the rolling reduction ratio is changed.
This is because if it exceeds 3.0-, excessive surface roughness will result.
また最終圧延の圧下率を０．５〜１０％と限定した理由
は０．５％未満では充分な表面粗度を板に与えることが
できず、１０％を超えると、通常の圧延と変わらず板は
模様のない平滑面となってしまうからである。Also, the reason why the rolling reduction ratio in the final rolling was limited to 0.5-10% is that if it is less than 0.5%, sufficient surface roughness cannot be given to the plate, and if it exceeds 10%, it is no different from normal rolling. This is because the board becomes a smooth surface with no pattern.
次に実施例により本発明を更に具体的に説明する。 Next, the present invention will be explained in more detail with reference to Examples.
実施例１
建築用外板として使用されるＪＩＳ １１００−ＨＩ３
材で表面欠陥として金属組織によるストラフチャースト
リークを有する板を用いロールの表面粗度および圧下率
を変えて圧延し板の表面粗度Ｒａを０．１〜２０μｍに
調整して、板の表面を観察した。Example 1 JIS 1100-HI3 used as architectural exterior panel
The surface roughness Ra of the plate was adjusted to 0.1 to 20 μm by rolling a plate having stracture streaks due to metallographic structure as a surface defect by changing the surface roughness and rolling reduction of the roll. observed.
その結果を第１表に示す。The results are shown in Table 1.
第１表から明らかなようにＪＩＳ １１００−ＨＩ３材
のような軟質合金では本発明範囲内の圧下率０．５〜ｌ
Ｏ％、表面粗度Ｒａ−０，３〜１．６−の場合良好な結
果が得られている。As is clear from Table 1, for soft alloys such as JIS 1100-HI3 material, the rolling reduction is within the range of the present invention from 0.5 to l.
Good results were obtained when the surface roughness Ra was 0.3 to 1.6.
これに対し本発明の範囲から外れる圧下率、表面粗度の
場合は良好な結果が得られなかった（比較例）。On the other hand, good results were not obtained when the rolling reduction and surface roughness were outside the range of the present invention (comparative example).
実施例２
パン車用ルーフ材として用いる月５５０５ｉ Ｈ３４材
で表面欠陥として圧延によるロールマークや若干のへリ
ングボーンを有する板を用い、実施例１と同様な実験を
行い板の表面を観察した。その結果を第２表に示す。Example 2 An experiment similar to Example 1 was conducted using a board made of Tsuki 5505i H34 material used as a roof material for a bread truck and having roll marks due to rolling and some herringbones as surface defects, and the surface of the board was observed. The results are shown in Table 2.
Ｘ＜Ｏ−＞？
Ｘ＜Ｏ）？
第２表から明らかなようにＪＩＳ ５０５２− Ｈ３４
材のような中硬質合金では本発明範囲内の圧下率０．５
〜６％、表面粗度Ｒａ ＝０．５〜１．３−の場合良好
な結果が得られた。X<O->? X<O)? As is clear from Table 2, JIS 5052-H34
For medium hard alloys such as steel, the reduction rate is 0.5 within the range of the present invention.
Good results were obtained when the surface roughness Ra was 0.5 to 1.3%.
これに対し、本発明の範囲から外れる、圧下率、表面粗
度の場合良好な結果が得られなかった。On the other hand, good results were not obtained when the rolling reduction and surface roughness were outside the scope of the present invention.
以上述べたように本発明によれば建築用、車輌用の外装
用アルミニウムまたはアルミ合金板を比較的容易に製造
することが出来、工業上顕著な効果を奏するものである
。As described above, according to the present invention, aluminum or aluminum alloy plates for exterior use in buildings and vehicles can be produced relatively easily, and industrially, significant effects are achieved.
Claims (2)
０．３〜１．６μｍに無方向に梨地処理されていること
を特徴とする外装用アルミニウムまたはアルミニウム合
金板。(1) The surface roughness Ra=
An aluminum or aluminum alloy plate for exterior use, characterized by being non-directionally matte-finished to a thickness of 0.3 to 1.6 μm.
〜３．０μｍに梨地処理したロールを用い、圧下率０．
５〜１０％の最終圧延を施すことにより、表面粗度Ｒａ
＝０．３〜１．６μｍに無方向に梨地処理することを特
徴とする外装用アルミニウムまたはアルミニウム合金板
の製造方法。(2) Surface roughness Ra=0.5 by shot blasting method
A roll with a satin finish of ~3.0 μm was used, and the rolling reduction was 0.
By applying final rolling of 5 to 10%, the surface roughness Ra
1. A method for producing an aluminum or aluminum alloy plate for exterior use, characterized by performing a matte finish in a non-directional manner to a thickness of 0.3 to 1.6 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14908390A JPH0441003A (en) | 1990-06-07 | 1990-06-07 | Exterior use aluminum or aluminum alloy plate and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14908390A JPH0441003A (en) | 1990-06-07 | 1990-06-07 | Exterior use aluminum or aluminum alloy plate and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0441003A true JPH0441003A (en) | 1992-02-12 |
Family
ID=15467327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14908390A Pending JPH0441003A (en) | 1990-06-07 | 1990-06-07 | Exterior use aluminum or aluminum alloy plate and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0441003A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0690142A1 (en) * | 1994-06-09 | 1996-01-03 | The Furukawa Electric Co., Ltd. | Aluminium alloy sheet for auto body sheet, method for manufacturing same and method for forming same |
| EP1166905A2 (en) * | 2000-06-29 | 2002-01-02 | Corus Aluminium N.V. | Method for producing an aluminium sheet |
| WO2012098060A1 (en) * | 2011-01-17 | 2012-07-26 | Hydro Aluminium Rolled Products Gmbh | Exterior wall metal sheet made of aluminium having a high surface roughness |
| WO2014150417A1 (en) * | 2013-03-15 | 2014-09-25 | Novelis Inc. | Rolled surfaces having a dulled gloss finish |
| CN105327936A (en) * | 2015-11-23 | 2016-02-17 | 武汉威华铝业有限公司 | Board machining method and board |
| JP2017517401A (en) * | 2014-05-12 | 2017-06-29 | アルコニック インコーポレイテッドＡｒｃｏｎｉｃ Ｉｎｃ． | Apparatus and method for rolling metal |
| CN108909747A (en) * | 2018-06-22 | 2018-11-30 | 中车青岛四方机车车辆股份有限公司 | Crossbeam and train with it |
-
1990
- 1990-06-07 JP JP14908390A patent/JPH0441003A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0690142A1 (en) * | 1994-06-09 | 1996-01-03 | The Furukawa Electric Co., Ltd. | Aluminium alloy sheet for auto body sheet, method for manufacturing same and method for forming same |
| EP1166905A2 (en) * | 2000-06-29 | 2002-01-02 | Corus Aluminium N.V. | Method for producing an aluminium sheet |
| EP1166905A3 (en) * | 2000-06-29 | 2003-04-02 | Corus Aluminium N.V. | Method for producing an aluminium sheet |
| WO2012098060A1 (en) * | 2011-01-17 | 2012-07-26 | Hydro Aluminium Rolled Products Gmbh | Exterior wall metal sheet made of aluminium having a high surface roughness |
| DE202012012923U1 (en) | 2011-01-17 | 2014-04-07 | Hydro Aluminium Rolled Products Gmbh | Exterior facade panel with high surface roughness |
| WO2014150417A1 (en) * | 2013-03-15 | 2014-09-25 | Novelis Inc. | Rolled surfaces having a dulled gloss finish |
| US9914160B2 (en) | 2013-03-15 | 2018-03-13 | Novelis Inc. | Methods for forming a work roll and a dulled gloss finish on a metal substrate |
| JP2017517401A (en) * | 2014-05-12 | 2017-06-29 | アルコニック インコーポレイテッドＡｒｃｏｎｉｃ Ｉｎｃ． | Apparatus and method for rolling metal |
| JP2021028086A (en) * | 2014-05-12 | 2021-02-25 | アーコニック テクノロジーズ エルエルシーＡｒｃｏｎｉｃ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｌｌｃ | Apparatus and method for rolling metal |
| JP2023010723A (en) * | 2014-05-12 | 2023-01-20 | アーコニック テクノロジーズ エルエルシー | Apparatus and method for rolling metal |
| CN105327936A (en) * | 2015-11-23 | 2016-02-17 | 武汉威华铝业有限公司 | Board machining method and board |
| CN108909747A (en) * | 2018-06-22 | 2018-11-30 | 中车青岛四方机车车辆股份有限公司 | Crossbeam and train with it |
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