Slurry application device and slurry application method

Patent metadata

Field	Value
Publication number	US-2017282206-A1
Application number	US-201515507925-A
Country	US
Kind code	A1
Filing date	Sep 2, 2015
Priority date	Sep 5, 2014
Publication date	Oct 5, 2017
Grant date	—

Abstract

A slurry application device includes: a slurry supply unit configured to supply slurry to a surface of a traveling base material; a slurry application unit including a first roll body disposed at the downstream side in relation to the slurry supply unit and configured to press the first roll body against the slurry to apply the slurry onto the surface and to adjust an adhesion amount of the slurry such that a film thickness of the slurry becomes one time or more and two times or less of a target film thickness; and a slurry adhesion amount adjustment unit including a second roll body disposed at the downstream side in relation to the slurry application unit and configured to press the second roll body against the slurry to adjust the slurry adhesion amount such that the film thickness of the slurry becomes the target film thickness.

First claim

1 . A slurry application device comprising:
a slurry supply unit configured to supply slurry to a surface of a traveling base material; a slurry application unit including a first roll body disposed at the downstream side in a travel direction of the base material in relation to the slurry supply unit and configured to press the first roll body against the slurry supplied to the surface of the base material to apply the slurry onto the surface of the base material and to adjust an adhesion amount of the slurry applied on and adhering to the surface of the base material such that a film thickness of the slurry of the surface of the base material becomes one time or more and two times or less of a target film thickness; and a slurry adhesion amount adjustment unit including a second roll body disposed at the downstream side in the travel direction of the base material in relation to the slurry application unit and configured to press the second roll body against the slurry applied on the surface of the base material to adjust the slurry adhesion amount such that the film thickness of the slurry on the surface of the base material becomes the target film thickness.

2 . The slurry application device according to claim 1 ,
wherein the second roll body is a groove attachment rubber roll whose outer circumferential surface is provided with a plurality of grooves arranged in a width direction of the base material and inclined with respect to the travel direction of the base material, and wherein the groove attachment rubber roll adjusts the slurry adhesion amount in such a manner that the outer circumferential surface provided with the plurality of grooves is pressed against the slurry of the surface of the base material.

3 . The slurry application device according to claim 2 , wherein the plurality of grooves are formed such that an angle of 15° to 75° is formed with respect to the travel direction of the base material.

4 . The slurry application device according to claim 1 , wherein rotation directions of the first roll body and the second roll body are same as the travel direction of the base material at contact portions of the first roll body and the second roll body with respect to the slurry of the surface of the base material.

5 . The slurry application device according to claim 1 , further comprising a gas ejection unit configured to level an outer surface of the slurry without changing the slurry adhesion amount by ejecting a gas to the slurry whose adhesion amount is adjusted by the slurry adhesion amount adjustment unit.

6 . A slurry application method comprising:
a slurry supply step of supplying slurry onto a surface of a traveling base material; a slurry application step of pressing a first roll body disposed at the downstream side in a travel direction of the base material in relation to a slurry supply unit supplying the slurry against the slurry supplied to the surface of the base material to apply the slurry onto the surface of the base material and to adjust an adhesion amount of the slurry applied on and adhering to the surface of the base material such that a film thickness of the slurry of the surface of the base material becomes one time or more and two times or less of a target film thickness; and a slurry adhesion amount adjustment step of pressing a second roll body disposed at the downstream side in the travel direction of the base material in relation to a slurry application unit applying the slurry against the slurry applied on the surface of the base material to adjust the slurry adhesion amount such that the film thickness of the slurry on the surface of the base material becomes the target film thickness.

7 . The slurry application method according to claim 6 , wherein the slurry adhesion amount adjustment step adjusts the slurry adhesion amount by pressing an outer circumferential surface of the second roll body serving as a groove attachment rubber roll whose outer circumferential surface is provided with a plurality of grooves arranged in a width direction of the base material and inclined with respect to the travel direction of the base material against the slurry of the surface of the base material.

8 . The slurry application method according to claim 7 , wherein the plurality of grooves are formed such that an angle of 15° to 75° is formed with respect to the travel direction of the base material.

9 . The slurry application method according to claim 6 , wherein rotation directions of the first roll body and the second roll body are same as the travel direction of the base material at contact portions of the first roll body and the second roll body with respect to the slurry of the surface of the base material.

10 . The slurry application method according to claim 6 , further comprising a gas ejection step of leveling an outer surface of the slurry without changing the slurry adhesion amount by ejecting a gas to the slurry of which the adhesion amount is adjusted by the slurry adhesion amount adjustment step.

Assignees

• Jfe Steel Corp

Inventors

• Kobayashi Hirokazu
• Harada Yushi

Classifications

• B05D3/00

  Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials (successively applying liquids or other fluent materials B05D1/36; drying ovens F26B) · CPC title

• B05C11/06 Primary

  with a blast of gas or vapour · CPC title

• B05C11/025 Primary

  with an essentially cylindrical body, e.g. roll or rod · CPC title

• B05D7/24

  for applying particular liquids or other fluent materials · CPC title

• B05B1/14

  with multiple outlet openings (B05B1/02, B05B1/26 take precedence); with strainers in or outside the outlet opening · CPC title