Corrosion-inhibiting method for steel materials in concrete
    1.
    发明授权
    Corrosion-inhibiting method for steel materials in concrete 失效
    混凝土中钢材的腐蚀抑制方法

    公开(公告)号:US4365999A

    公开(公告)日:1982-12-28

    申请号:US214004

    申请日:1980-11-02

    IPC分类号: C04B28/02 C04B7/35

    摘要: A corrosion-inhibiting method for protecting steel materials in concrete or mortar, characterized in that a nitrite, a compound of general formula NH(R)CH.sub.2 COOH (wherein R represents a H atom or an alkyl group having 1 to 4 carbon atoms) or salts thereof, and a hydrazine hydrate are incorporated into the concrete or mortar is provided. The corrosion-inhibiting method is particularly available for construction of steel reinforced concrete structures in which chloride-containing sea sand is used as aggregates and does not affect a property of the concrete or mortar.

    摘要翻译: PCT No.PCT / JP79 / 00053 Sec。 371日期:1980年11月2日 102(e)1980年9月10日PCT申请1979年3月2日PCT公布。 出版物WO80 / 01802 1980年9月4日,一种用于保护混凝土或砂浆中钢材的腐蚀抑制方法,其特征在于亚硝酸盐,通式为NH(R)CH 2 COOH的化合物(其中R表示H原子或具有1个 至4个碳原子)或其盐,并且将水合肼加入混凝土或砂浆中。 腐蚀抑制方法特别适用于钢筋混凝土结构的建造,其中使用含氯化物的海砂作为骨料,不影响混凝土或砂浆的性能。

    Regulator valve fault checking method
    2.
    发明授权
    Regulator valve fault checking method 有权
    调压阀故障检查方法

    公开(公告)号:US09285058B2

    公开(公告)日:2016-03-15

    申请号:US13598562

    申请日:2012-08-29

    申请人: Toru Kashima

    发明人: Toru Kashima

    CPC分类号: F16K37/0083 G05B23/0243

    摘要: An operating device pressure Po into a regulator valve and a degree of opening X from the regulator valve are sampled. A speed of change vPo (k) of the Po (k) is calculated from the current Po (k) and the previous Po (k −1). A speed of change vX (k) of the X (k) is calculated from the current X (k) and the previous X (k −1). If both vPo (k) and vX (k) are small, then a weighting value w1 (k) is set to 1 (and set to 0 otherwise), where a fault check indicator Fq (i) for each degree-of-opening category i during a fault check evaluation time interval is calculated from the vPo (k) and vX (k) when w1 (k) is 1 and from a linear approximation formula F1 that indicates the steady-state input/output relationships in the regulator valve when operating properly.

    摘要翻译: 对调节阀的操作装置压力Po和来自调节阀的开度X进行采样。 从当前Po(k)和先前的Po(k-1)计算Po(k)的变化速度vPo(k)。 从当前的X(k)和先前的X(k-1)计算X(k)的变化速度vX(k)。 如果vPo(k)和vX(k)都小,则加权值w1(k)被设置为1(否则设置为0),其中每个开度的故障检查指示符Fq(i) 在w1(k)为1时从vPo(k)和vX(k)计算故障检查评估时间间隔内的类别i,以及指示调节阀中的稳态输入/输出关系的线性近似公式F1 操作正常时