JP6875530B2 - コンパクトな連続焼き鈍し溶体化熱処理 - Google Patents
コンパクトな連続焼き鈍し溶体化熱処理 Download PDFInfo
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- JP6875530B2 JP6875530B2 JP2019537057A JP2019537057A JP6875530B2 JP 6875530 B2 JP6875530 B2 JP 6875530B2 JP 2019537057 A JP2019537057 A JP 2019537057A JP 2019537057 A JP2019537057 A JP 2019537057A JP 6875530 B2 JP6875530 B2 JP 6875530B2
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- metal strip
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- metal
- rotors
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- H—ELECTRICITY
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Description
本出願は、「ROTATING MAGNET HEAT INDUCTION」という名称で2016年9月27日に出願された米国仮特許出願第62/400,426号、および「ROTATING MAGNET HEAT INDUCTION」という名称で2017年5月14日に出願された米国仮特許出願第62/505,948号の恩恵を主張し、それらの開示全体は参照により本明細書に組み込まれる。
Claims (18)
- 熱処理ラインであって、
下流方向に移動する金属ストリップを受け入れるための加熱ゾーンと、
前記金属ストリップを受け入れ、かつ前記ピーク金属温度を一定の継続時間維持するための、前記加熱ゾーンの下流に位置決めされたソーキングゾーンと、
前記金属ストリップを前記ピーク金属温度から急速に焼き入れするための、前記ソーキングゾーンの下流に位置決めされた焼き入れゾーンと、を備え、
前記加熱ゾーンが、前記金属ストリップをピーク金属温度に加熱するために、前記金属ストリップに渦電流を誘発するための複数の磁気回転子を備えかつ前記ソーキングゾーンが、前記金属ストリップを浮上させるための、追加の複数の磁気回転子を備え、
前記加熱ゾーンおよび前記ソーキングゾーンの磁気回転子の各々が、前記下流方向に直角な、かつ前記金属ストリップの横方向の幅に平行な回転軸の周りで回転するように配置され、
前記ソーキングゾーンの各磁気回転子が、複数の横方向に離間した磁気源からなり、前記ソーキングゾーンの連続する磁気回転子内の磁気源の横方向の位置は、すぐ後に続く磁気回転子の横方向に離間配置された磁気源に対して互いにオフセットされて、その結果千鳥状の磁気源アレイがもたらされる、熱処理ライン。 - 前記複数の磁気回転子が、複数の磁気回転子対を備え、前記複数の磁気回転子対の各々が、上部磁気回転子から前記金属ストリップとは反対に位置決めされた底部磁気回転子を備える、請求項1に記載の熱処理ライン。
- 前記複数の磁気回転子の各々が、前記回転軸の周りで回転するように位置決めされた複数の永久磁石を備える、請求項1に記載の熱処理ライン。
- 前記ソーキングゾーンが、前記金属ストリップと前記追加の複数の磁気回転子との間に位置決めされたチャンバ壁をさらに備え、前記チャンバ壁が、前記金属ストリップを受け入れるためのチャンバを画定し、前記チャンバが、ガスの供給部に連結可能である、請求項1に記載の熱処理ライン。
- 前記ソーキングゾーンが、前記追加の複数の磁気回転子の回転によって、前記金属ストリップにおいて誘発される温度上昇を相殺するための、1つ以上の冷却デバイスをさらに備える、請求項1に記載の熱処理ライン。
- 前記金属ストリップをコイルから前記加熱ゾーンに提供するための、前記加熱ゾーンの上流に位置決めされたアンコイラと、
前記金属ストリップの平坦度を制御するための、前記焼き入れゾーンの下流に位置決めされたレベリングローラと、
前記金属ストリップを加熱するための、前記レベリングローラの下流に位置決めされた再加熱ゾーンであって、前記再加熱ゾーンが、1つ以上の追加の磁気回転子を備える、再加熱ゾーンと、をさらに備える、請求項1に記載の熱処理ライン。 - 前記金属ストリップの張力を調整するための、張力調整ゾーンをさらに備え、前記張力調整ゾーンが、前記下流方向に直角な、かつ前記金属ストリップの前記横方向の幅に平行な回転軸の周りで回転可能な1つ以上の磁気回転子を備える、請求項1に記載の熱処理ライン。
- 前記金属ストリップをスタータコイルから前記加熱ゾーンに提供するための、前記加熱ゾーンの上流に位置決めされたアンコイラと、前記金属ストリップを熱処理後に受け入れ、かつ前記金属ストリップを終端コイルに巻き取るための、前記焼き入れゾーンの下流に位置決めされたリコイラと、をさらに備え、通過線が、前記アンコイラと前記リコイラとの間に画定され、それに沿って前記金属ストリップが、アキュムレータを通過することなく、前記加熱ゾーン、前記ソーキングゾーン、および前記焼き入れゾーンを通過する、請求項1に記載の熱処理ライン。
- 前記金属ストリップの進行中に後続の金属ストリップを前記金属ストリップに溶接するための、前記加熱ゾーンの上流に位置決めされた移動溶接機をさらに備える、請求項1に記載の熱処理ライン。
- 連続熱処理の方法であって、
金属ストリップを加熱ゾーン中で下流方向に通過させることであって、前記金属ストリップをピーク金属温度に加熱することと、
前記金属ストリップをソーキングゾーンに通過させることであって、前記金属ストリップを前記ソーキングゾーンに通過させることが、前記金属ストリップの前記ピーク金属温度を一定の継続時間維持することと、
前記金属ストリップを前記ピーク金属温度から焼き入れすることと、を含む、連続熱処理の方法であって、
前記加熱ゾーンが複数の磁気回転子を有しかつ前記ソーキングゾーンが複数の追加の磁気回転子を有し、前記金属ストリップは前記複数の磁気回転子に隣接して下流方向に通過させ、前記加熱ゾーンおよび前記ソーキングゾーンの磁気回転子の各々が前記下流方向に垂直なかつ前記金属ストリップの横方向の幅に平行な回転軸回りで回転するように構成され、
前記方法が
各々の回転軸回りで前記複数の磁気回転子を回転させることを含み、前記複数の磁気回転子を回転することが前記金属ストリップをピーク金属温度に加熱するために、前記金属ストリップに渦電流を誘発することと、
前記複数の磁気回転子が、複数の磁気回転子対を備え、前記複数の磁気回転子対の各々が、間隙によって分離された底部磁気回転子と、上部磁気回転子と、を備え、前記金属ストリップを前記複数の磁気回転子に隣接して通過させることが、前記金属ストリップを前記複数の磁気回転子対の間隙に通過させることを含み、
前記ソーキングゾーンを通過させて金属ストリップを浮上させることを含み、金属ストリップが浮上することが金属ストリップに近接して各回転軸回りで前記追加の複数の回転子を回転すること、とを含み、
前記ソーキングゾーンの各磁気回転子が、複数の横方向に離間した磁気源からなり、前記ソーキングゾーンの連続する磁気回転子内の磁気源の横方向の位置は、すぐ後に続く磁気回転子の横方向に離間配置された磁気源に対して互いにオフセットされて、その結果千鳥状の磁気源アレイがもたらされる、
ことを特徴とする連続熱処理の方法。 - 前記複数の磁気回転子のうちの磁気回転子を回転させることが、複数の永久磁石を前記回転軸の周りで回転させることを含む、請求項10に記載の方法。
- 前記金属ストリップを前記ソーキングゾーンに通過させることが、
前記金属ストリップを、前記金属ストリップと前記追加の複数の磁気回転子との間に位置決めされたチャンバ壁によって画定されたチャンバに通過させることと、
ガスの供給部から前記チャンバにガスを供給することと、を含む、請求項10に記載の方法。 - 前記ピーク金属温度を維持することが、前記追加の複数の磁気回転子の回転によって、前記金属ストリップにおいて誘発される温度上昇を相殺するために、前記金属ストリップに冷却流体を塗布することを含む、請求項10に記載の方法。
- 前記金属ストリップをスタータコイルから巻き出すことと、
前記金属ストリップを焼き入れした後に、前記金属ストリップをレベリングすることと、
前記金属ストリップをレベリングした後に、前記金属ストリップを再加熱することであって、前記金属ストリップを再加熱することが、前記金属ストリップに隣接する1つ以上の追加の磁気回転子を回転させる、再加熱することと、を含む、請求項10に記載の方法。 - 前記金属ストリップを通板させることをさらに含み、前記金属ストリップを通板させることが、
磁気回転子を下流方向に回転させることであって、前記磁気回転子が、前記複数の磁気回転子および追加の磁気回転子の組からなる群から選択される、回転させることと、
前記磁気回転子によって、前記金属ストリップの端部を通過させることと、
前記磁気回転子を上流方向に回転させるために、前記磁気回転子の回転を逆転させることと、をさらに含む、請求項10に記載の方法。 - 前記金属ストリップを前記複数の磁気回転子に隣接して通過させる前に、前記金属ストリップをスタータコイルから巻き出すことと、
前記金属ストリップを焼き入れした後に、前記金属ストリップを終端コイルに巻き戻すことであって、前記終端コイルの前記金属ストリップが、熱処理されている、巻き戻すことと、
前記金属ストリップの巻き出しと前記金属ストリップの巻き戻しとの間に前記金属ストリップをアキュムレータに通過させないことと、をさらに含む、請求項10に記載の方法。 - 前記金属ストリップを後続の金属ストリップに接合することをさらに含み、前記金属ストリップを接合することが、
前記金属ストリップの進行中に前記金属ストリップおよび前記後続の金属ストリップを接合部で当接させることと、
前記金属ストリップの進行中に移動接合デバイスを前記接合部の上に通過させることと、
前記金属ストリップの進行中に前記接合部を接合することと、を含む、請求項10に記載の方法。 - 前記金属ストリップをコーティングまたは潤滑することのうちの少なくとも一方と、次いで前記コーティングまたは潤滑された金属ストリップを再加熱することと、をさらに含む、請求項10に記載の方法。
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