Circuit arrangement for protection of a heating element from overheating heating device and method for fused protection of the heating device
    2.
    发明授权
    Circuit arrangement for protection of a heating element from overheating heating device and method for fused protection of the heating device 有权
    用于保护加热元件免于过热加热装置的电路布置以及加热装置的熔断保护方法

    公开(公告)号:US08440942B2

    公开(公告)日:2013-05-14

    申请号:US10582925

    申请日:2004-12-10

    IPC分类号: H05B1/00

    CPC分类号: H05B1/0283 G05D23/2401

    摘要: A circuit arrangement is provided for protecting from overheating a heating element whose resistance value is a function of its temperature. The circuit arrangement includes a power supply, a switch, and a switch control circuit, a current sensor providing a signal proportional to the current flowing through the heating element, and a first scaling device whose output provides a signal proportional to the supply voltage of the heating element. An evaluation circuit compares the difference signal determined by a first detector having an output that provides a difference signal formed from the signals of the current sensor and the first scaling device with a reference signal and the switch control circuit can be switched from a conducting state when the switch control circuit is in a first state to a non-conducting state when the switch control circuit is in a second state.

    摘要翻译: 提供一种电路装置,用于防止电阻值为其温度的函数的加热元件过热。 电路装置包括电源,开关和开关控制电路,电流传感器,其提供与流过加热元件的电流成比例的信号;以及第一定标装置,其输出提供与所述加热元件的电源电压成正比的信号 加热元件 评估电路将由具有从电流传感器和第一缩放装置的信号形成的差分信号的输出的第一检测器确定的差分信号与参考信号进行比较,并且开关控制电路可以从导通状态切换 当开关控制电路处于第二状态时,开关控制电路处于非导通状态的第一状态。

    PROCESS FOR COATING STEEL STRIPS AND COATED STEEL STRIP
    3.
    发明申请
    PROCESS FOR COATING STEEL STRIPS AND COATED STEEL STRIP 审中-公开
    涂层钢带和涂层钢带的工艺

    公开(公告)号:US20120305139A1

    公开(公告)日:2012-12-06

    申请号:US13508167

    申请日:2010-10-25

    IPC分类号: C23C8/26 B32B15/01

    摘要: In a method for coating steel strips having a base material composition (in weight-%) of: C 0.04-1.0; Mn 9.0-30.0; Al 0.05-15.0; Si 0.05-6.0; Cr≦6.5; Cu≦4; Ti+Zr≦0.7; Nb+V≦0.5, remainder iron including unavoidable steel-incidental elements, the steel strip undergoes annealing and subsequently is coated electrolytically with a coat formed from zinc or a zinc-containing alloy. During the course of annealing of the steel strip at temperatures between 800 and 1000° C. under a N2-H2 containing atmosphere, a surface-near zone is formed which is enriched with nitrides through reaction with elements contained in the steel, thereby preventing molten zinc from penetrating into the base material during welding of the coated steel strip.

    摘要翻译: 在用于涂覆基材组成(重量%):C 0.04-1.0的钢带的方法中, 锰9.0-30.0; Al 0.05-15.0; Si 0.05-6.0; Cr≦̸ 6.5; Cu≦̸ 4; Ti + Zr≦̸ 0.7; Nb + V≦̸ 0.5,剩余的铁包括不可避免的钢附着元素,钢带经历退火,随后用由锌或含锌合金形成的涂层电解涂覆。 在含氮气氛的800〜1000℃的钢带退火过程中,通过与钢中含有的元素反应而形成富含氮化物的表面附近区域,从而防止熔融 在涂覆的钢带焊接期间,锌渗入基材。

    Circuit Arangement for Protection of a Heating Element from Overheating Heating Device and Method for Fused Protection of the Heating Device
    5.
    发明申请
    Circuit Arangement for Protection of a Heating Element from Overheating Heating Device and Method for Fused Protection of the Heating Device 有权
    用于保护加热元件免于过热加热装置的电路布置和加热装置的熔断保护方法

    公开(公告)号:US20080023464A1

    公开(公告)日:2008-01-31

    申请号:US10582925

    申请日:2004-12-10

    IPC分类号: H05B1/00

    CPC分类号: H05B1/0283 G05D23/2401

    摘要: A circuit arrangement is provided for protecting from overheating a heating element whose resistance value is a function of its temperature. The circuit arrangement includes a power supply, a switch, and a switch control circuit, a current sensor providing a signal proportional to the current flowing through the heating element, and a first scaling device whose output provides a signal proportional to the supply voltage of the heating element. An evaluation circuit compares the difference signal determined by a first detector having an output that provides a difference signal formed from the signals of the current sensor and the first scaling device with a reference signal and the switch control circuit can be switched from a conducting state when the switch control circuit is in a first state to a non-conducting state when the switch control circuit is in a second state.

    摘要翻译: 提供一种电路装置,用于防止电阻值为其温度的函数的加热元件过热。 电路装置包括电源,开关和开关控制电路,电流传感器,其提供与流过加热元件的电流成比例的信号;以及第一定标装置,其输出提供与所述加热元件的电源电压成正比的信号 加热元件 评估电路将由具有从电流传感器和第一缩放装置的信号形成的差分信号的输出的第一检测器确定的差分信号与参考信号进行比较,并且开关控制电路可以从导通状态切换, 当开关控制电路处于第二状态时,开关控制电路处于非导通状态的第一状态。