Nissan Motor Company Limited

Other

Taikisha Ltd.

Hirokazu Sugiyama

Toshihiko Koike

Genji Nakayama

Yasuo Takamizu

Hiromi Nonomura

Takashi Arakawa

Youji Honda

Shigeyoshi Okada

Kenshichiro Shima

Yasuo c/o Taikisha Ltd Takamizu

There is provided an electrodeposition coating apparatus for dipping a body into an electrodeposition coating liquid filled in an electrodeposition tank, which includes a first circulation system for causing a flow direction of the coating liquid in a surface area and an intermediate area through which the body passes in the electrodeposition tank to be opposite to a moving direction of the body, and a second circulation system for causing a flow direction of the coating liquid in a bottom area in the electrodeposition tank to be equal to the moving direction of the body.

Dip type surface treatment apparatus and dip type surface treatment method

The invention relates to a system for treating a surface of an article with a liquid material by dipping. This system includes (a) a major tank having therein the liquid material for dipping the article thereinto; and (b) a circulatory mechanism for circulating the liquid material through the major tank. The circulatory mechanism is arranged to make a flow of the liquid material through the major tank such that the majority of the flow is in one direction that is substantially along the longitudinal direction of the major tank. Thus, contaminants and/or bubbles are not distributed over the entire major tank, but are effectively promptly removed from the major tank. The flow of the liquid material may include a first flow of the liquid material in the major tank and a second flow that is lower than the first flow in position. The first and second flows run substantially in parallel with each other, before the first and second flows reach a downstream end thereof in the major tank. The major tank may be formed at the downstream end with a wall having a special configuration such that the first and second flows separate or diverge from each other at the downstream end, and thus the flow of the liquid material through the major tank becomes very smooth.

Dip surface-treatment system and method of dip surface-treatment using

A work is dipped in electrodeposition paint, and then the work is baked. Between the dipping step and baking step of the work, there is provided a step for spraying hot water mist to the work. It is preferable that the temperature of the hot water mist is in a range equal to or higher than 40.degree. C. and lower than 100.degree. C. Water or vapor may be used instead of the hot water mist.

Electrodeposition method

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Kanagawa-ken, Japan

Hirokazu Sugiyama