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    • 62. 发明申请
    • HEAT TREATMENT WITH AN AUTOREGULATING HEATER
    • 具有自动加热器的热处理
    • WO1985004069A1
    • 1985-09-12
    • PCT/US1985000368
    • 1985-03-06
    • METCAL, INC.
    • METCAL, INC.DERBYSHIRE, Rodney, L.BUSCH, Paul, F.
    • H05B06/00
    • C21D11/00C21D1/34C21D9/08
    • Apparatus and process for selectively heat treating at least a portion of an article in the field with autoregulated heating. The autoregulated heating is provided by heater (110) including at least a first magnetic material (202) disposed along the portion of the article (100) to be head treated. The first magnetic material (202) has a magnetic permeability which sharply changes at temperatures at or near the autoregulating (AR) temperature thereof. The changes in permeability result in corresponding changes in the skin depth of the first magnetic material (202) and, hence, the heating produced therein responsive to a.c. current passing therethrough. By maintaining the a.c. current constant in amplitude and frequency, the first magnetic material (202) and the portion of the article (100) are regulated at substantially the AR temperature of the first magnetic material. By selecting the first magnetic material (202) to have AR temperature substantially corresponding to the temperature at which metal anneals, tempers, hardens, softens stress relieves or the like, heat treating at an autoregulated temperature is achieved. The autoregulated heater can be incorporated into the article or can be applied to the article (100) thereafter, in each case permitting in field heat treating. Autoregulated heating can also be achieved by any of various multilayer structures to provide desired autoregulation effects.
    • 用于使用自动调节加热选择性地热处理场中物品的至少一部分的装置和方法。 自动调节加热由加热器(110)提供,该加热器包括沿待处理的物品(100)的部分设置的至少第一磁性材料(202)。 第一磁性材料(202)具有在其自调节(AR)温度或其附近温度下急剧变化的磁导率。 渗透性的变化导致第一磁性材料(202)的皮肤深度的相应变化,并因此导致其响应于a.c.产生的加热。 电流通过。 通过维持a.c. 振幅和频率的电流常数,第一磁性材料(202)和制品(100)的部分基本上被调节在第一磁性材料的基本上的AR温度。 通过选择第一磁性材料(202)使AR温度基本上对应于金属退火,温度,硬化,软化应力消除等的温度,实现了在自动调节温度下的热处理。 自动调节的加热器可以并入到制品中,或者可以在每种情况下允许进行现场热处理的情况下应用于制品(100)。 也可以通过各种多层结构中的任何一种来实现自动调节加热,以提供期望的自动调节效果。
    • 65. 发明申请
    • CONTINUOUS ANNEALING APPARATUS FOR STRIP AND CONTINUOUS ANNEALING METHOD FOR SAME
    • 连续退火装置用于条带和连续退火方法
    • WO2015099402A1
    • 2015-07-02
    • PCT/KR2014012705
    • 2014-12-23
    • POSCO
    • KWAK JAI-HYUNLEE KYOO-YOUNGCHO HANG-SIKRYU JOO-HYUNPARK MAN-YOUNG
    • C21D9/56C21D1/26C21D9/573
    • C21D9/52C21D1/26C21D1/34C21D1/40C21D1/42C21D1/52C21D1/60C21D1/613C21D1/773C21D9/56C21D9/561C21D9/573C21D9/60C21D2211/005C22C38/001C22C38/002C22C38/004C22C38/02C22C38/04C22C38/06C22C38/14Y02P10/253
    • The present invention relates to a continuous annealing apparatus for a strip, capable of manufacturing a high-strength and highly ductile cold-rolled steel sheet having both excellent strength and ductility, and to a continuous annealing method for a strip. The continuous annealing apparatus, according to the present invention, is capable of continuous annealing by cooling after heating, and then reheating, unlike an existing continuous annealing apparatus which heats only once and then cools or provides an overaging treatment. As a result, the continuous annealing apparatus, according to the present invention, can preliminarily render a homogeneous texture or control the texture as desired, and then perform another reheating heat treatment to stabilize the texture or control the shape thereof to a desired state. Also, provided is the continuous annealing apparatus and the continuous annealing method using the apparatus, the continuous annealing apparatus also capable of manufacturing high-strength steel having excellent processability and strength by using a low alloy, and capable of manufacturing a zinc-plated strip having excellent plated surfaces by controlling the thickness of elements and oxides enriched on the surface of the strip.
    • 本发明涉及一种能够制造具有优异的强度和延展性的高强度和高延展性的冷轧钢板以及连续退火方法的带材的连续退火装置。 根据本发明的连续退火装置,与现有的仅加热一次然后冷却或提供过时效处理的连续退火装置不同,可以通过加热后的冷却,然后再加热进行连续退火。 结果,根据本发明的连续退火装置可以预先形成均匀的织构或根据需要控制纹理,然后进行另一种再热处理以使织构稳定或将其形状控制到期望的状态。 此外,提供了使用该装置的连续退火装置和连续退火方法,该连续退火装置还能够通过使用低合金制造具有优异的加工性和强度的高强度钢,并且能够制造具有 通过控制富含在条带表面上的元素和氧化物的厚度来获得优异的电镀表面。