Global Patent Index - EP 2055805 A3

EP 2055805 A3 20110629 - Degreasing method and degreasing apparatus

Title (en)

Degreasing method and degreasing apparatus

Title (de)

Verfahren und Vorrichtung zur Entfettung

Title (fr)

Procédé et appareil de dégraissage

Publication

EP 2055805 A3 20110629 (EN)

Application

EP 08018915 A 20081029

Priority

  • JP 2007286181 A 20071102
  • JP 2008229996 A 20080908

Abstract (en)

[origin: EP2055805A2] Prior to immersion of an object to be treated in a degreasing liquid, an aqueous solution 20 having a pH of 5.5 to 10. 0 is put into a sac-shaped portion of a vehicle body 2. Even when the vehicle body 2 is passed through the degreasing liquid, the aqueous solution 20 is not replaced with the degreasing liquid, and alkaline solid substances do not remain in the hemmed portion 2a. This prevents the water in the sac-shaped portion from having the high alkalinity even when water comes into the hemmed portion 2a later. The degreasing method can prevent the decrease in corrosion resistance of the joint portion of the object to be treated.

IPC 8 full level

C23G 1/14 (2006.01); C11D 11/00 (2006.01); C23C 22/78 (2006.01); C23G 1/16 (2006.01); C23G 1/20 (2006.01); C23G 1/26 (2006.01)

CPC (source: EP)

B08B 3/04 (2013.01); B08B 3/08 (2013.01); C23C 22/78 (2013.01); C23G 1/14 (2013.01); C23G 1/16 (2013.01); C23G 1/20 (2013.01); C23G 1/26 (2013.01); C25D 13/20 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA MK RS

DOCDB simple family (publication)

EP 2055805 A2 20090506; EP 2055805 A3 20110629; EP 2055805 B1 20140402

DOCDB simple family (application)

EP 08018915 A 20081029