公开(公告)号：US09844789B2

公开(公告)日：2017-12-19

申请号：US14154286

申请日：2014-01-14

Applicant: NHK Spring Co., Ltd.

Inventor： Shinpei Kakiuchi ,  Eijiro Furuta ,  Takashi Ando

IPC: B05B1/30 ,  C23C18/16 ,  C23C18/32

CPC classification number: B05B1/30 ,  C23C18/1655 ,  C23C18/1662 ,  C23C18/1664 ,  C23C18/32

Abstract: A viscous liquid feed nozzle has a nozzle body having a thin and long hole with a front end serving as a feed port. The nozzle is used with a viscous liquid feed unit to feed a viscous liquid such as a viscous adhesive from the feed port. The nozzle has a lubricative plated layer at least on the inside and outside of the feed port. The lubricative plated layer is formed by electroless plating by immersing the nozzle in a plating tank containing a lubricative plating solution. A base end of the nozzle body may have a wide port. In this case, the lubricative plated layer is formed by immersing the nozzle body in the plating tank containing the lubricative plating solution so that the lubricative plating solution enters the wide port and by applying pressure or gravity to the lubricative plating solution in the wide port to pass the lubricative plating solution through the thin and long hole of the nozzle body and discharge the same from the feed port. The viscous liquid feed nozzle with the lubricative plated layer is capable of stably feeding a very small quantity of a viscous liquid.