WO2017158989A1 - 紫外線反射材用アルミニウム箔およびその製造方法 - Google Patents
紫外線反射材用アルミニウム箔およびその製造方法 Download PDFInfo
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 269
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 269
- 239000011888 foil Substances 0.000 title claims abstract description 203
- 239000000463 material Substances 0.000 title claims abstract description 97
- 238000004519 manufacturing process Methods 0.000 title claims description 37
- 230000003746 surface roughness Effects 0.000 claims abstract description 61
- 239000002245 particle Substances 0.000 claims abstract description 46
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- 241000894006 Bacteria Species 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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- 102220570201 Pyridoxal-dependent decarboxylase domain-containing protein 1_S40A_mutation Human genes 0.000 description 1
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
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- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
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- 235000004835 α-tocopherol Nutrition 0.000 description 1
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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- 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
- B21B1/24—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 in a continuous or semi-continuous process
- B21B1/26—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 in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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- 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
- B21B1/24—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 in a continuous or semi-continuous process
- B21B1/28—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 in a continuous or semi-continuous process by cold-rolling, e.g. Steckel cold mill
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- 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
- B21B1/38—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 sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
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- 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
- B21B1/40—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 foils which present special problems, e.g. because of thinness
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- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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- B21B1/46—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 metal immediately subsequent to continuous casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B21B1/38—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 sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
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- B21B2003/001—Aluminium or its alloys
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- B21B2261/04—Thickness, gauge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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- B21B2261/14—Roughness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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Abstract
Description
本実施の形態に係るアルミニウム箔1(図1参照)において、予め定められた表面積の領域内に存在し、かつ当該領域に圧入もしくは付着しているアルミニウム粒子の総表面積は、当該領域の表面積に対して0.05%以下である。上記領域内に存在する晶出物の総表面積が、当該領域の表面積に対して2%以下である。上記晶出物の1個当たりの平均表面積が2μm2以下である。上記領域の表面粗さRaが20nm未満である。
次に、本実施の形態に係るアルミニウム箔の製造方法の一例について説明する。図4に示されるように、本実施の形態に係るアルミニウム箔の製造方法は、鋳塊を準備する工程(S10)、鋳塊に均質化処理を行う工程(S20)、鋳塊を熱間圧延する工程(S30)、熱間圧延により得られた熱延材を冷間圧延する工程(S40)、冷間圧延により得られた冷延材を最終仕上げとして冷間圧延(以下、最終仕上げ冷間圧延という)してアルミニウム箔を形成する工程(S50)とを備える。さらに、本実施の形態に係るアルミニウム箔の製造方法は、最終仕上げ冷間圧延により得られた冷延在を表面洗浄する工程(S60)を備えることが好ましい。
本発明者らは、このようなアルミニウム箔1が従来のアルミニウム箔と比べて波長域250nm~400nmの紫外線に対して高い反射率を有していることを確認した(詳細は後述する実施例参照)。
図6に示されるように、アルミニウム箔の製造方法は、図4に示される表面洗浄工程(S60)に代えて、最終仕上げ冷間圧延により得られた冷延材11(図5参照)の表面を電解研磨する工程(S70)を備えていてもよい。冷延材11において電解研磨される表面は、最終仕上げ冷間圧延工程(S50)において表面粗さRaが40nm以下である圧延ロール101(図5参照)により延ばされた表面11A(図5参照)を含んでいる。このようにしても、最終仕上げ冷間圧延工程において冷延材の表面に圧入または付着したアルミニウム粒子は、電解研磨により研磨されて除去または縮小され得る。そのため、図6に示されるアルミニウム箔の製造方法によっても、予め定められた表面積の領域内に存在し、かつ当該領域に圧入もしくは付着しているアルミニウム粒子の総表面積が、当該領域の表面積に対して0.05%以下であるアルミニウム箔を製造することができる。さらに、電解研磨によりアルミニウム箔の表面の平滑性を高めることができる。
表1に示す組成A~Eのアルミニウムを用いて、表2に示す製造工程に従って、表3に示す実施例1~10と比較例1~15のアルミニウム箔の試料を作製した。なお、表1において「その他元素計」とは、JISで規定される元素以外の不可避不純物元素(B、Bi、Pb、Naなど)の合計含有量を示す。
Claims (9)
- 予め定められた表面積の領域に圧入もしくは付着しているアルミニウム粒子の総表面積が前記領域の表面積に対して0.05%以下であり、
前記領域内に存在する晶出物の総表面積が前記領域の表面積に対して2%以下であり、
前記晶出物の1個当たりの平均表面積が2μm2以下であり、
前記領域の表面粗さRaが20nm未満である、紫外線反射材用アルミニウム箔。 - 圧延方向と垂直な方向の表面粗さRzJISが100nm以下である、請求項1に記載の紫外線反射材用アルミニウム箔。
- 当該アルミニウム箔の厚みが4μm以上300μm以下である、請求項1または請求項2に記載の紫外線反射材用アルミニウム箔。
- 前記領域の上に形成された保護層を備え、
波長域254nm以上265nm以下の深紫外線に対する前記保護層の表面の全反射率が80%以上である、請求項1~3のいずれか1項に記載の紫外線反射材用アルミニウム箔。 - 前記保護層を構成する材料は、シリコーン組成物およびフッ素樹脂の少なくともいずれかを含む、請求項4に記載の紫外線反射材用アルミニウム箔。
- 前記保護層の前記表面の表面粗さRaは10nm以下である、請求項4または5に記載の紫外線反射材用アルミニウム箔。
- 請求項1~請求項6のいずれか1項に記載の紫外線反射材用アルミニウム箔を製造する方法であって、
表面粗さRaが40nm以下である圧延ロールを用いて圧下率が25%以上の条件でアルミニウム箔を最終仕上げ冷間圧延する工程を備える、紫外線反射材用アルミニウム箔の製造方法。 - 前記最終仕上げ冷間圧延する工程後に、前記アルミニウム箔の表面の少なくとも一部を、酸溶液またはアルカリ溶液を用いて洗浄する、または電解研磨する工程をさらに備える、請求項7に記載の紫外線反射材用アルミニウム箔の製造方法。
- 前記最終仕上げ冷間圧延する工程後に、前記表面の少なくとも一部上にシリコーン組成物およびフッ素樹脂の少なくともいずれかを含む保護層を形成する工程をさらに備える、請求項7または8に記載の紫外線反射材用アルミニウム箔の製造方法。
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