JP6831399B2 - 複合圧延押し出し方法およびそれを実行するための装置 - Google Patents
複合圧延押し出し方法およびそれを実行するための装置 Download PDFInfo
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- 238000001125 extrusion Methods 0.000 title claims description 42
- 238000005096 rolling process Methods 0.000 title claims description 29
- 239000002131 composite material Substances 0.000 title claims description 10
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 54
- 238000000034 method Methods 0.000 claims description 44
- 229910052751 metal Inorganic materials 0.000 claims description 30
- 239000002184 metal Substances 0.000 claims description 30
- 238000010438 heat treatment Methods 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 17
- 238000005266 casting Methods 0.000 claims description 15
- 229910045601 alloy Inorganic materials 0.000 claims description 14
- 239000000956 alloy Substances 0.000 claims description 14
- 229910000838 Al alloy Inorganic materials 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 238000005058 metal casting Methods 0.000 claims description 6
- 235000012438 extruded product Nutrition 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 5
- 150000002739 metals Chemical class 0.000 claims description 5
- 239000002826 coolant Substances 0.000 claims 1
- 239000000047 product Substances 0.000 description 14
- 239000012467 final product Substances 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000009749 continuous casting Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000004804 winding Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 229910016952 AlZr Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- VRAIHTAYLFXSJJ-UHFFFAOYSA-N alumane Chemical compound [AlH3].[AlH3] VRAIHTAYLFXSJJ-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012430 stability testing Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/0665—Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating
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- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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- 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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- 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
- C22F1/043—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 of alloys with silicon as the next major constituent
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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
- C22F1/047—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 of alloys with magnesium as the next major constituent
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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
- C22F1/05—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 of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
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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
- B21B1/46—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
- B21B1/463—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 in a continuous process, i.e. the cast not being cut before rolling
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- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0078—Extruding the rolled product
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- B21C23/00—Extruding metal; Impact extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/06—Rod-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
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Description
ほぼ3.5m/分から6m/分の範囲の低速で、薄い平板の連続鋳造を与える、金型を取り付けた鋳造マシンと、
急速加熱ユニットと、
リバースタイプの2つの組みあわされたスタンドに取り付けられたステッケル圧延ミルと、
新しく凝固した薄い平板の厚みを減少させることができる、少なくともひとつの圧延スタンドであって、鋳造マシンのすぐ下流でかつ急速加熱ユニットの上流の製造ラインに設置されたスタンドとを有する。急速加熱ユニットは、粗いスタンドを通過するとき、薄い平板の温度損失を少なくとも補償する誘導加熱炉の形式で作成され、また、誘導加熱炉の下流側の製造ラインにおいて、少なくとも2つのコアを取り付けた巻き取りおよび巻き戻しデバイスが存在し、それは、鋳造マシンから出てくるストリップを巻き取る機能、または、ステッケル圧延ミルへ送り出すために巻き戻す機能を交互に実行ことを可能にする。
巻き取りを可能にしつつ、10mmから40mmの値まで厚さを減少させるよう、少なくともひとつの粗いスタンド内で薄い平板を圧延処理する工程と、
圧延操作工程と、
冷却操作工程と、
ストリップの形状で、最終製品の巻き取り操作を行う工程と、
鋳造操作に続く製造ライン部で、および、粗い圧延操作中に、少なくともひとつの熱損失を補償するよう電磁誘導によって急速加熱操作工程と、
上述した急速加熱操作の後に実行される、2つのコアを具備する巻き取りおよび巻き戻しデバイスによって実行される巻き取りおよび巻き戻し工程と、
を有し、
同時に、上述した巻き取りおよび巻き戻しデバイスにより巻き戻されたストリップの圧延の上記操作は、3つ以下のダブルパス内の2つのリバーシブルスタンドが与えられたステッケル圧延ミルで実行され、1.2mmから16mmの厚さを有するストリップ形式の最終製品を得ることができる。2つのスタンドステッケル圧延ミルの第1のスタンド内の圧延パスの各々内の厚さ損失割合は、25%から50%であり、一方第2スタンド内のストリップの厚さ損失割合は、30%以下である。
ワークゲージを形成する無限長の溝形成ロールおよびフィン付きロールを形成する回転金型であって、その出口において、ダイがダイフォルダの溝内に設置され、鋳造鋼片の温度制御デバイスがロールの上流に設置され、一方ガイドエレメントがワークゲージの上流に配置され、押し出し軸に対してある角度でまたは平行に鋳造鋼片を固定できるように設置され、フィン付きロールフィンの上部は、T字形状の表面を有し、溝が形成されたロールはいくつかのフィンを有し、フィン付きロールは、フィンおよび溝が互いに関してロールのラビリンス結合を形成するように、互いに対して配置されたいくつかの溝を有し、ダイは、ダイおよびダイフォルダ内に作成された溝およびフィンを嵌合することにより、ダイフォルダに関してその位置を固定することが可能であるように形成され、ロールの表面とワークゲージ内のダイとの間にギャップが存在する。
鋳造鋼片を結晶化する工程と、
鋳造鋼片が予め設定した温度で、2つのロールによって形成されたワークケージ内に送られる工程であって、そこで鋼片圧延が実行され、その後ダイへ送られ、それを通じて鋳造押し出しが実行される、ところの工程と、
ワークゲージ内に鋳造鋼片を送る前に、鋳造鋼片の温度が、付加的加熱または冷却によって調節され、既製の押し出し製品が得られる工程と、
ワークゲージ内への鋳造鋼片の送りが、押し出し軸線に対してある角度で、またはそれと平行に実行される工程と、
を有し、
鋳造鋼片がワークゲージ内に送られたたとき、金属または合金のクラッド層が、ロールとダイとの間に形成されたギャップを通じて、鋳造鋼片を押し出すことによって、ロールの表面に作成される。
液体アルミニウムまたはアルミニウム合金2を有する均熱炉1、無限長の鋳造鋼片4を形成する回転金型3、鋳造鋼片用の温度制御デバイス5、ガイドエレメントのローラ6、溝つきロール7およびフィン付きロール8、および半最終製品10を押し出すための閉止したワークゲージ(図2)を形成するダイ9、および半最終製品冷却デバイス11を有する。
デバイスの実際の使用例として、実験的な製造ラインLPA6上での連続鋳造鋼片の変形の例が与えられる。断面が40mm×37mmの連続鋳造鋼片を得るための鋳造が、直径1510mmの回転金型内で実行された。連続の複合圧延押し出しが、3から12rpmのロールの回転速度の直径428mmの冷却ロールによって、CREPユニット上で実行された。融解温度は750℃であり、回転金型の出口での鋳造鋼片の温度は520℃であり、ゲージへの入口での温度安定デバイス後の鋳造鋼片の温度は、380〜420℃に維持された。以下の重量%濃度(0.1のシリコン、0.25の鉄、0.28のジルコニウム、残りはアルミニウム)を含む耐熱AlZr合金が使用された。押し出しは、5.2から16.8の押し出し速度μを有するダイによって実行され、続いて押し出されたバーの冷却および巻き取りが実行された。体積6tの9.5mmのAlZr合金のワイヤロッドのパイロットバッチが得られた。最大抗張力および電気伝導度テスト用のサンプルが、押し出されたバーから切断された。その最大抗張力σ、相対伸張率、特定の電気伝導度がテスト結果に基づいて推定された。得られたコイルは、熱アニールにさらされた。熱アニールの後、最大抗張力および電気伝導度テスト用にサンプルが取られた。押し出しバーおよびワイヤのサンプルのテスト結果が表1に与えられる。
Claims (10)
- 金属または合金の複合圧延押し出し方法であって、
鋳造鋼片を結晶化する工程と、
2つのロールによって形成されたワークゲージ内に、予め設定した温度の前記鋳造鋼片を送る工程であって、前記鋳造鋼片の圧延を実行し、その後ダイへ移動し、それを通じて鋳造押し出しが実行される、ところの工程と、
を備え、
前記ワークゲージ内に前記鋳造鋼片を送る前に、前記鋳造鋼片の温度が付加的な加熱または冷却によって調節されつつ、既製の押し出し製品が得られ、
前記ワークゲージ内への前記鋳造鋼片の送りが、押し出し軸に関してある角度でまたは平行に実行され、
前記鋳造鋼片が、前記ワークゲージ内に送られるとき、前記ロールの表面と前記ダイとの間に形成されるギャップを通じて、前記鋳造鋼片を押し出すことにより、金属または合金のクラッド層がロールの表面上に作成される、ことを特徴とする方法。 - 得られる前記既製の押し出し製品は、5.2から16.8の相対伸張率を有する、ことを特徴とする請求項1に記載の方法。
- 金型内への金属の鋳込みが前記金型の水平軸線に平行に実行される、ことを特徴とする請求項1に記載の方法。
- 前記鋳造鋼片の温度は、前記ロールの表面に送られる前に、380から420℃に維持される、ことを特徴とする請求項1に記載の方法。
- 前記鋳造鋼片の温度は、前記ロールの表面に送られる前に、400から420℃の範囲に維持される、ことを特徴とする請求項4に記載の方法。
- その温度が設定温度より低ければ、前記鋳造鋼片は誘導加熱される、ことを特徴とする請求項1に記載の方法。
- その温度が所望の温度より高ければ、前記鋳造鋼片はその表面に冷媒を供給することにより冷却される、ことを特徴とする請求項1に記載の方法。
- 前記鋳造鋼片は、押し出し軸線に対して、0から20度の角度で、前記ロールの表面に送られる、ことを特徴とする請求項1に記載の方法。
- 前記鋳造鋼片は、前記押し出し軸線に対して、10から20度の角度で、前記ロールの表面に送られる、ことを特徴とする請求項8に記載の方法。
- 使用される金属はアルミニウムであり、使用される合金はアルミニウム合金である、ことを特徴とする請求項1に記載の方法。
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