公开(公告)号：US4692191A

公开(公告)日：1987-09-08

申请号：US869783

申请日：1986-06-02

申请人： Shigeyoshi Maeda ,  Masahiro Yamamoto ,  Hiroyasu Omata ,  Hideya Okada

发明人： Shigeyoshi Maeda ,  Masahiro Yamamoto ,  Hiroyasu Omata ,  Hideya Okada

IPC分类号： B44C1/00 ,  B44C1/02 ,  C23C22/73 ,  C23C22/50

CPC分类号： B44C1/005 ,  B44C1/02 ,  C23C22/73

摘要： A method of improving the functions of the surface of alloy steel by means of the irradiation of a laser beam is disclosed. In this method, the alloy steel is kept in contact with the aqueous solution of oxidizing acid or salt thereof and the irradiation of a laser beam is applied on the surface of the alloy steel through the aqueous solution, thereby concentrating an alloy component on the surface of the alloy steel. The aqueous solution contains at least one selected from the group consisting of nitric acid or nitrate, chromic acid or chromate, or permanganic acid or permanganate. In addition, the irradiation of the laser beam is applied so as to depict a given pattern on the surface, and a computer controls the shape and the size of the beam, the position of the alloy steel, and the like. The present method enables the improvement of a surface function of the alloy steel by providing various kinds of color-patterns.

摘要翻译： 公开了一种通过激光束照射改善合金钢表面功能的方法。 在该方法中，合金钢与氧化性酸或其盐的水溶液保持接触，并且通过水溶液将合金钢的表面照射激光束，从而将合金成分浓缩在表面上 的合金钢。 水溶液含有选自硝酸或硝酸盐，铬酸或铬酸盐或高锰酸或高锰酸盐中的至少一种。 此外，施加激光束的照射以在表面上描绘给定的图案，并且计算机控制光束的形状和尺寸，合金钢的位置等。 本方法能够通过提供各种颜色图案来提高合金钢的表面功能。

公开(公告)号：US06513462B1

公开(公告)日：2003-02-04

申请号：US09937600

申请日：2001-09-28

申请人： Tadashi Shiraishi ,  Takehiko Ichioka ,  Hideya Okada ,  Fumitoshi Nakao ,  Toshiyuki Kinugasa

发明人： Tadashi Shiraishi ,  Takehiko Ichioka ,  Hideya Okada ,  Fumitoshi Nakao ,  Toshiyuki Kinugasa

IPC分类号： F22B3754

CPC分类号： B08B3/102 ,  F22B37/483 ,  F28G1/166 ,  F28G13/00

摘要： A scale removing device for removes scale adhering to the interior of a shell-and-tube-heat-exchanger-type steam generator. The scale removing device is provided with a flexible lance (58) holding a high-pressure water hose (91) movable with respect to a tube plate, tube support plates, and heat-transfer tubes. A cleaning head (60) is mounted to the forward end of the flexible lance. Formed inside the cleaning head is a cavitation generating nozzle hole (99a, 99b) communicating with the high-pressure water hose. Bubbles are generated at the time of cleaning, and the impact pressure generated when the bubbles collapse is propagated to remove scale over a wide range.

摘要翻译： 一种除垢装置，用于去除附着在壳管式热交换器型蒸汽发生器内部的垢。 除垢装置设置有柔性喷枪（58），其保持相对于管板，管支撑板和传热管可移动的高压水软管（91）。 清洁头（60）安装到柔性喷枪的前端。 在清洁头内部形成有与高压水软管连通的气蚀产生喷嘴孔（99a，99b）。 在清洁时产生气泡，并且当气泡破裂时产生的冲击压力被传播以在宽范围内移除氧化皮。