公开(公告)号：US6077418A

公开(公告)日：2000-06-20

申请号：US166548

申请日：1998-10-05

申请人： Hajime Iseri ,  Kuniyuki Takahashi ,  Yutaka Yoneda

发明人： Hajime Iseri ,  Kuniyuki Takahashi ,  Yutaka Yoneda

IPC分类号： G01N17/00 ,  G01N17/04

CPC分类号： G01N17/043

摘要： Corrosion of a metal member under heat transfer condition is monitored by using a test coupon made of the same material as that of the metal member. The test coupon may have a welded portion and a crevice. One substantial surface of the test coupon is heated by a sheet shaped heating element, and at least one portion of the other surface of the test coupon is contacted with the corrosive fluid. After detecting a status of corrosion of the test coupon, the corrosion of the metal member is monitored based on the results of the detection. In case a counter electrode or reference electrode is used, the electrode is immersed in the corrosive fluid, and electrical signals between the test coupon and the electrode are measured. Then, the corrosion of the metal member is monitored.

摘要翻译： 通过使用与金属构件相同的材料制成的试样来监测金属构件在传热条件下的腐蚀。 试样可具有焊接部分和缝隙。 试样的一个实质表面被片状加热元件加热，并且试样的另一个表面的至少一部分与腐蚀性流体接触。 在检测到试样的腐蚀状态之后，基于检测结果监测金属构件的腐蚀。 在使用对电极或参比电极的情况下，将电极浸入腐蚀性液体中，并测量试样与电极之间的电信号。 然后，监测金属构件的腐蚀。

公开(公告)号：US08163105B2

公开(公告)日：2012-04-24

申请号：US11085578

申请日：2005-03-22

申请人： Yutaka Yoneda ,  Hajime Iseri ,  Shintaro Mori

发明人： Yutaka Yoneda ,  Hajime Iseri ,  Shintaro Mori

IPC分类号： C23C28/02 ,  C23C22/08

CPC分类号： C23C22/68 ,  C23F11/184

摘要： The present invention provides a corrosion inhibition method which minimizes environmental adverse effects by using phosphate base anticorrosives without using zinc salt base anticorrosives and by reducing the concentration of the phosphate base anticorrosives, enables stable formation of an effective initial protective film, and does not affect water treatment after the formation of the initial protective film. In an initial protective film formation process of forming an initial protective film on a surface of an iron-based metallic member of a water system by adding anticorrosives to the water system, at least one selected from a group consisting of pyrophosphoric acids and pyrophosphates is employed as the anticorrosives and the initial protective film formation process is conducted such that the initial pH at the start of the initial protective film formation process is adjusted to be 5 or more and less than 7 so that the pH at the end of the initial protective film formation process becomes 7 or more.

摘要翻译： 本发明提供一种腐蚀抑制方法，通过使用磷酸盐基防腐剂而不使用锌盐基防腐蚀剂并且通过降低磷酸盐基防腐剂的浓度来最小化环境不利影响，能够稳定地形成有效的初始保护膜，并且不影响水 形成初始保护膜后进行处理。 在通过向水系添加抗腐蚀剂而在水系铁基金属构件的表面上形成初始保护膜的初始保护膜形成方法中，使用选自焦磷酸和焦磷酸盐中的至少一种 作为防腐蚀剂和初始保护膜形成工艺，使得初始保护膜形成工序开始时的初始pH被调节至5以上且小于7，使得初始保护膜的末端的pH 形成工序变为7以上。

公开(公告)号：US20050221013A1

公开(公告)日：2005-10-06

申请号：US11085578

申请日：2005-03-22

申请人： Yutaka Yoneda ,  Hajime Iseri ,  Shintaro Mori

发明人： Yutaka Yoneda ,  Hajime Iseri ,  Shintaro Mori

IPC分类号： C23C22/68 ,  C23F11/18 ,  B05D3/12

CPC分类号： C23C22/68 ,  C23F11/184

摘要： The present invention provides a corrosion inhibition method which minimizes environmental adverse effects by using phosphate base anticorrosives without using zinc salt base anticorrosives and by reducing the concentration of the phosphate base anticorrosives, enables stable formation of an effective initial protective film, and does not affect water treatment after the formation of the initial protective film. In an initial protective film formation process of forming an initial protective film on a surface of an iron-based metallic member of a water system by adding anticorrosives to the water system, at least one selected from a group consisting of pyrophosphoric acids and pyrophosphates is employed as the anticorrosives and the initial protective film formation process is conducted such that the initial pH at the start of the initial protective film formation process is adjusted to be 5 or more and less than 7 so that the pH at the end of the initial protective film formation process becomes 7 or more.

摘要翻译： 本发明提供一种腐蚀抑制方法，通过使用磷酸盐基防腐剂而不使用锌盐基防腐蚀剂并且通过降低磷酸盐基防腐剂的浓度来最小化环境不利影响，能够稳定地形成有效的初始保护膜，并且不影响水 形成初始保护膜后进行处理。 在通过向水系添加抗腐蚀剂而在水系铁基金属构件的表面上形成初始保护膜的初始保护膜形成方法中，使用选自焦磷酸和焦磷酸盐中的至少一种 作为防腐蚀剂和初始保护膜形成工艺，使得初始保护膜形成工序开始时的初始pH被调节至5以上且小于7，使得初始保护膜的末端的pH 形成工序变为7以上。

公开(公告)号：US06451212B2

公开(公告)日：2002-09-17

申请号：US09947469

申请日：2001-09-07

申请人： Hajime Iseri ,  Yutaka Yoneda ,  Kuniyuki Takahashi

发明人： Hajime Iseri ,  Yutaka Yoneda ,  Kuniyuki Takahashi

IPC分类号： C02F150

CPC分类号： G01N33/1866 ,  C02F1/008 ,  C02F1/50 ,  C02F2103/023 ,  C02F2209/04 ,  G01N17/008

摘要： According to the method of treating water in a cooling water system, adhesion of fouling is on-line monitored by a compact and inexpensive apparatus and a slime control treatment is intensified according to the result of on-line monitoring. The water treatment is intensified in response to the change of electric potential of a sensor monitoring microbial fouling 11 made of sensitized metallic material. When the electric potential of the sensor exceeds a threshold value, an agent is added through both chemical feeding pumps 15 and 17. When the electric potential lowers to the normal value, the agent is added only through the pump 15.

摘要翻译： 根据在冷却水系统中处理水的方法，通过紧凑廉价的装置在线监测污垢粘附，并且根据在线监测的结果增强了粘液控制处理。 响应于由感光金属材料制成的传感器监测微生物污垢11的电位变化，水处理增强。 当传感器的电位超过阈值时，通过化学供给泵15和17两者添加试剂。当电位降低到正常值时，仅通过泵15添加试剂。