公开(公告)号：US6045860A

公开(公告)日：2000-04-04

申请号：US91

申请日：1998-01-16

申请人： Junichi Ito ,  Tetsuro Atsumi ,  Makoto Yonemitsu ,  Yoshihiro Nishimoto ,  Hiroshi Okamura

发明人： Junichi Ito ,  Tetsuro Atsumi ,  Makoto Yonemitsu ,  Yoshihiro Nishimoto ,  Hiroshi Okamura

IPC分类号： C23C18/16 ,  C23C18/31 ,  B05D7/22

CPC分类号： C23C18/54 ,  C23C18/1651 ,  C23C18/168 ,  C23C18/31

摘要： A process for manufacturing a copper tube with a tinned inner surface by circulating a substitution-type electroless tin plating solution inside the copper tube. The process is characterized by comprising a first plating step wherein the rate of deposition of a tin film is adjusted so that the total copper ion concentration in the plating solution, immediately after flowing from the copper tube, after having been circulated inside the tube divided by the tin (II) ion concentration in this plating solution is 0.8 or less, and a second plating step wherein plating is carried out at a plating solution temperature higher than the plating solution temperature in the first plating step. A plating solution comprising 0.05-0.3 mol/l of Sn.sup.2 ion, 0.5-2.0 mol/l of thiourea, 0.5-2.0 mol/l of sulfuric acid, 0.05-2.0 mol/l of alkyl benzene sulfonic acid, and 0.5-5.0 g/l of a nonionic surface active agent is preferably used. The process ensures manufacture of long coiled tubes with tinned internal surface which are used as water supply tubes, hot water supply tubes, and tubes in heat exchangers. The tin plate film has a uniform thickness and exhibits superior adhesion properties and corrosion resistance.

摘要翻译： PCT No.PCT / JP97 / 01752 Sec。 371日期1998年1月16日 102（e）日期1998年1月16日PCT提交1997年5月22日PCT公布。 WO97 / 46732 PCT公开号 日期1997年12月11日通过在铜管内循环取代型无电镀锡溶液来制造具有镀锡内表面的铜管的方法。 该方法的特征在于包括第一电镀步骤，其中调节锡膜的沉积速率，使得在铜管流动之后立即从铜管流出之后的电镀溶液中的总铜离子浓度在管内循环之后除以 该电镀溶液中的锡（II）离子浓度为0.8以下，第2镀敷工序为在第1镀敷工序中电镀液温度高于电镀液温度的电镀液。 将包含0.05-0.3mol / l Sn2离子，0.5-2.0mol / l硫脲，0.5-2.0mol / l硫酸，0.05-2.0mol / l烷基苯磺酸和0.5-5.0g / l的非离子表面活性剂。 该过程确保制造具有镀锡内表面的长卷管，其用作供热管，热水供应管和热交换器中的管。 锡板膜具有均匀的厚度并且具有优异的粘附性和耐腐蚀性。

公开(公告)号：US4776384A

公开(公告)日：1988-10-11

申请号：US933910

申请日：1986-11-24

申请人： Atsushi Kawabe ,  Katsumi Yasui ,  Masaki Yamamoto ,  Koji Nagata ,  Tetsuro Atsumi ,  Mamoru Nishikawa

发明人： Atsushi Kawabe ,  Katsumi Yasui ,  Masaki Yamamoto ,  Koji Nagata ,  Tetsuro Atsumi ,  Mamoru Nishikawa

IPC分类号： F28B9/00 ,  C23F11/18 ,  F28B11/00 ,  F28F19/00 ,  F28F19/01 ,  F28G1/12 ,  F28G15/00 ,  G01B7/06 ,  G01N17/02 ,  F28G9/00

CPC分类号： C23F11/18 ,  F28B11/00 ,  F28F19/004 ,  F28G1/12 ,  G01B7/06 ,  G01N17/02

摘要： A method of monitoring the inner surfaces of copper-alloy condenser tubes of a condenser through which seawater flows as a coolant by controlling a ferrous-ion injecting operation to inject ferrous ions into the coolant for forming a protective film on the inner surfaces of the condenser tubes, and a sponge-ball cleaning operation to clean the inner tube surfaces by passing sponge balls through the condenser tubes. During an initial period of exposure of the condenser tubes to the coolant after installation of the condenser tubes in the condenser, the ferrous ions are injected into the coolant to form the protective film on the inner surfaces of the condenser tubes until the polarization resistance of the condenser tubes has reached 10.sup.4 .OMEGA.cm.sup.2. Subsequently, the ferrous-ion injecting operation and the sponge-ball cleaning operation are executed while the polarization resistance and heat transfer rate of the condenser tubes are monitored. The injecting and cleaning operations are performed to maintain within suitable ranges the polarization resistance and the heat transfer rate of the condenser tubes. These ranges may vary, depending upon whether the coolant is non-chlorinated seawater, chlorinated seawater, or sulfide-ion polluted seawater.

摘要翻译： 一种监测冷凝器的铜合金冷凝器管的内表面的方法，其通过控制用于在冷凝器的内表面上形成保护膜的亚铁离子注入冷却剂中的作为冷却剂的海水流过的冷凝器的内表面 管和海绵球清洁操作，以通过将海绵球通过冷凝器管来清洁内管表面。 在将冷凝器管安装在冷凝器中之后冷凝管暴露于冷却剂的初始阶段，将亚铁离子注入冷却剂中，以在冷凝管的内表面上形成保护膜，直到冷凝器的极化电阻 冷凝器管已达到104欧米伽cm2。 随后，在监测冷凝管的极化电阻和传热速率的同时执行亚铁离子注入操作和海绵球清洗操作。 执行注入和清洁操作以在合适的范围内保持冷凝器管的极化电阻和传热速率。 这些范围可能会有所不同，具体取决于冷却液是否为非氯化海水，氯化海水或硫化离子污染的海水。

公开(公告)号：US4762168A

公开(公告)日：1988-08-09

申请号：US933927

申请日：1986-11-24

申请人： Atsushi Kawabe ,  Katsumi Yasui ,  Masaki Yamamoto ,  Koji Nagata ,  Tetsuro Atsumi ,  Mamoru Nishikawa

发明人： Atsushi Kawabe ,  Katsumi Yasui ,  Masaki Yamamoto ,  Koji Nagata ,  Tetsuro Atsumi ,  Mamoru Nishikawa

IPC分类号： F28B9/00 ,  F28B11/00 ,  F28F19/00 ,  F28F19/01 ,  F28F19/02 ,  F28G1/12 ,  G01N17/00 ,  F28G9/00

CPC分类号： F28F19/02 ,  F28B11/00 ,  F28G1/12 ,  Y10S165/002

摘要： A condenser including a plurality of condenser tubes through which a coolant is caused to flow, a device for injecting ferrous ions into the coolant before it passes through the condenser tubes to form a protective film on an inner surface of the condenser tubes, and a device for introducing sponge balls into the condenser tubes for cleaning their inner surfaces. The condenser has a by-pass line extending outside the body of the condenser, in parallel connection with the condenser tubes. The by-pass line has a monitor tube of the same material and size as the condenser tubes, so that the coolant flows through the monitor tube under the same conditions as the coolant flowing through the condenser tubes. The monitor tube is equipped with a device for measuring a polarization resistance of the monitor tube, and a device for sensing a fouling condition of the inner surface of the monitor tube. The injection of ferrous ions into the condenser tubes and the cleaning of their inner surfaces with the sponge balls are adjusted in response to the measured or sensed polarization resistance and fouling condition of the monitor tube.

摘要翻译： 一种冷凝器，包括多个冷凝器管，冷却剂通过该冷凝器流动，用于在冷凝器通过冷凝器管之前将亚铁离子注入冷却剂中以在冷凝器管的内表面上形成保护膜的装置，以及装置 用于将海绵球引入冷凝管中以清洁其内表面。 冷凝器具有与冷凝器管并列连接的冷凝器外部的旁路管线。 旁路管线具有与冷凝器管相同的材料和尺寸的监控管，使得冷却剂在与冷凝器管流动的冷却剂相同的条件下流过监控管。 显示器管配备有用于测量监视管的极化电阻的装置和用于感测监视管的内表面的结垢状况的装置。 响应于监测管的测量或感测的极化电阻和结垢状况，调节亚铁离子注入冷凝管和用海绵球清洗其内表面。