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2. 发明专利

JPS59169581A Coating method for interior surface of pipe 失效
标题翻译：管内表面涂层方法
公开(公告)号：JPS59169581A
公开(公告)日：1984-09-25
申请号：JP4295983
申请日：1983-03-14
申请人： Poriyunion Kogyo Kk , Sumikin Kokan Koji Kk , Sumitomo Metal Ind Ltd
发明人： SAKUMOTO TOSHIKAZU , TOMABECHI MASATOSHI , WAKAO RIYOUSUKE , AKIMOTO KIYOSHI , TSURU MASAYUKI , OKAMOTO TOKUJI , SAKURAI TADAO , DAIKU SADAKUNI
IPC分类号： B05D7/22 , F16L58/02
CPC分类号： F16L58/02
摘要： PURPOSE: To uniformly coat the inside of a pipe even which may have a bent part of small radius of curvature, by forming at least rear one of two pigs between solventless paint is interposed from a spherical body having elasticity, and transferring each pig with fluid pressure from the backside.
CONSTITUTION: A preceding pig 2 and a rear pig 3 comprising an elastic spherical body are inserted into a pipe body 1 such as a steel pipe, and solventless paint 4 is interposed in a space therebetween. The backside of the pig 3 is affected by fluid pressure such as air pressure, pressure difference is held between the front and rear sides of the pig 3, and said paint 4 is transferred through the pig 3. Hence, the film of said paint 4 is formed on the inner surface of the pipe body 1. As a material for forming the pig 3, rubber, soft synthetic resin, etc. may be used. As said paint, a substantially solventless type is preferable, and its viscosity is 200W600 poise at an ordinary temp. (0W40°C). By this method, the formation of a uniform coating film can be performed, said uniform coating can be applied onto piping even which may have small radius of curvature, and the labor of treatment after the application processing can be remarkably curtailed.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过在无溶剂涂料之间形成至少两只猪之后的至少一只猪，即使具有小曲率半径的弯曲部分的均匀地涂覆管道内部，也可以从具有弹性的球体中移出，背压的压力。构成：将前述的猪2和包括弹性球体的后猪3插入诸如钢管的管体1中，并且在其间的空间插入无溶剂涂料4。猪3的背面受到诸如空气压力的流体压力的影响，猪3的前侧和后侧之间保持压差，并且所述油漆4通过猪3转移。因此，所述油漆4的膜形成在管体1的内表面上。作为用于形成猪3的材料，可以使用橡胶，软质合成树脂等。作为所述涂料，优选基本无溶剂型，其常压下的粘度为200-600泊。（0-40℃）。通过这种方法，可以进行均匀的涂膜的形成，即使可以具有小的曲率半径，也可以在管道上施加所述均匀涂布，并且可以显着地减少涂布处理后的处理量。

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