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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB8492/26A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
METALS PROTECTION Corp
Original Assignee
METALS PROTECTION Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by METALS PROTECTION CorpfiledCriticalMETALS PROTECTION Corp
Publication of GB257571ApublicationCriticalpatent/GB257571A/en
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
B23K5/00—Gas flame welding
B23K5/213—Preliminary treatment
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Nonmetallic Welding Materials
(AREA)
Abstract
257,571. Metals Production Corporation, (Assignees of Humphries, C. H.). Aug. 31, 1925, [Convention date]. Fluxes.-In the welding of iron or sheet articles the surface of the article is treated, before welding, with a solution of chromic acid. The solution is applied by dipping or with a brush or a sprayer and the surfaces are allowed to dry before welding. In an example the solution comprises 64 parts by weight of commercial chromic acid, 1 part of sulphuric acid and 267 parts of water.
Improvements in or relating to methods of treating latex or in or relating to latex adhesives or in or relating to methods of forming bonds by the use of such adhesives