Flame treatment device, apparatus for producing coated metal plate, and method for producing coated metal plate

Patent metadata

Field	Value
Publication number	US-11241714-B2
Application number	US-201916963912-A
Country	US
Kind code	B2
Filing date	Jan 17, 2019
Priority date	Jan 26, 2018
Publication date	Feb 8, 2022
Grant date	Feb 8, 2022

Abstract

The present invention addresses the problem of providing a flame treatment device which is capable of performing a flame treatment on a metal-based base material without requiring a preheat treatment. For the purpose of solving the above-described problem, a flame treatment device according to the present invention comprises: a first temperature measurement unit which measures the temperature of a metal-based base material before a flame treatment; a control unit which determines the combustion energy of flame on the basis of the temperature before a flame treatment, said temperature having been measured by the first temperature measurement unit, so that the surface temperature of the metal-based base material during the flame treatment is 56° C. or higher; and a flame treatment unit which performs a flame treatment on the metal-based base material on the basis of the combustion energy, which has been determined by the control unit.

First claim

The invention claimed is:

1. A flame treatment apparatus, comprising:
a first temperature measuring section that measures a temperature before flame treatment of a metal-based base material;
a control section that, based on the temperature before flame treatment measured by the first temperature measuring section, determines flame combustion energy so that a surface temperature of the metal-based base material is 56° C. or more during flame treatment;
a flame treatment section that, based on the combustion energy determined by the control section, flame-treats the metal-based base material; and
a conveyance section that conveys the metal-based base material,
wherein the first temperature measuring section and the flame treatment section are disposed in this order along a conveyance direction of the conveyance section.

2. The flame treatment apparatus according to claim 1 , further comprising a second temperature measuring section that measures a temperature after flame treatment of the metal-based base material, wherein:
the control section determines the combustion energy based on the temperature before flame treatment and the temperature after flame treatment.

3. The flame treatment apparatus according to claim 2 , further comprising a humidity measuring section that measures outdoor air humidity, wherein:
the control section determines the combustion energy based on the outdoor air humidity, the temperature before flame treatment, and the temperature after flame treatment.

4. An apparatus for producing a coated metal plate, comprising:
a coating film forming section that forms a coating film by coating a metal plate with a coating material; and
the flame treatment apparatus according to claim 1 , wherein:
the flame treatment apparatus performs flame treatment of the coating film formed by the coating film forming section.

5. A method for producing a coated metal plate, comprising:
forming a coating film on a metal plate having a thermal conductivity of 10 W/mK or more by coating the metal plate with a coating material;
first measuring a temperature of the metal plate including the coating film formed on the metal plate; and
determining flame combustion energy based on the temperature measured in the first measuring of the temperature so that a surface temperature of the coating film is 56° C. or more during flame treatment and then performing flame treatment.

6. The method for producing a coated metal plate according to claim 5 , wherein:
the flame treatment includes determining the combustion energy based on the temperature measured in the first measuring of the temperature and the thermal conductivity of the metal plate.

7. The method for producing a coated metal plate according to claim 5 , wherein:
the flame treatment is performed so that the surface temperature of the coating film is 56° C. or more and 150° C. or less during the flame treatment.

8. The method for producing a coated metal plate according to claim 5 , further comprising second measuring the temperature of the metal plate including the coating film formed on the metal plate after the flame treatment, wherein:
the flame treatment includes determining the combustion energy based on at least the temperature measured in the first measuring of the temperature and the temperature measured in the second measuring of the temperature.

9. The method for producing a coated metal plate according to claim 8 , further comprising measuring outdoor air humidity, wherein:
the flame treatment includes determining the combustion energy based on at least the temperature measured in the first measuring of the temperature, the temperature measured in the second measuring of the temperature, and the humidity measured in the measuring of the humidity.

10. The method for producing a coated metal plate according to claim 5 , wherein:
the flame treatment is performed while the metal plate including the coating film formed on the metal plate is conveyed in a constant direction; and
the flame treatment includes determining the combustion energy based on at least the temperature measured in the first measuring of the temperature and conveyance speed of the metal plate.

11. The method for producing a coated metal plate according to claim 5 , wherein:
the flame treatment includes determining the combustion energy based on at least the temperature measured in the first measuring of the temperature and a type of a combustion gas supplied during the flame treatment.

12. The method for producing a coated metal plate according to claim 5 , wherein:
the coating material contains a silicone resin.

Assignees

• Nippon Steel Corp

Inventors

• Satou Masaki
• Suzuki Seiju
• Sugita Shuichi

Classifications

• B05C9/14

  the auxiliary operation involving heating {or cooling} · CPC title

• B05D3/0254 Primary

  After-treatment · CPC title

• B05D2202/10

  based on Fe · CPC title

• B05D1/28

  performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers · CPC title

• B05D7/14

  to metal, e.g. car bodies (involving a chemical reaction between the metal and the coating C23) · CPC title