SCIENTIFIC ABSTRACT SCHULLER, A. - SCHULZ, K.F.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001447610001-7
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 23, 2000
• Sequence Number: 1
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT


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KAPITOLA, J.; BLEHA, 0.; SCHULLEROVAI.M.; DIENSTBIER, Z. I .

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PIVRNEG, Jan, dr.; SCHUMANN, Janj,dr,
Chitlncik for two-whpal mntor vehicles. Automobil 7 no.2!3U315

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SCH"I";THEISZ, 6-Y.; FOILL",
Embossina rolls used for hot rolling of nluminnA and.aluall-aun alloys nud

H/olli/60/000/010/001/0.04
~E190/E580
A.UTHORS. Kdhler, linre, Dipl. met. eng. Schulthe i sz Gyul a, Diplr
met. eng. and.Gyenes, Liu,: o j'ip --c-Ti-eniTs
TITLE.~ Roll Lubrication~in the Hot,Rolling of Aluminium and
the Testing.of Lubricants
PERIODICAL: Kohaszati.lapok, 1960,,No.10, pp-433 439
TEXT: Lubricants used in the-hot rolling of aluminium-.and its
alloys have.to satisfy a number of.of-ten.contiradict.ory requirements.
The present paper describes experiments carried.out on a two-high
production rolling-mill,with.Ahe aim of.developing a suitable
me of
-lubricant. The ii ar- ineral oils used originally could not
prevent the.build-up.of a heavy roll coating and the necessity 'of
intermittent water cooling led to ~crazling the roll surface, ~r
'These difficulties have Lbeen overcome with,emulsions.. A good
emulsion Is stable (particle size 1-5,11), lubricates.well without
staining,,prevents corrosion, wlets, the roll surface,-,it has a long
life, can be filtered.~and is'-suitable for the lubrication of roll,
neck bearings, besides. being non-toxicland.:cheap. Spindle-oil and
cutting-fluid*type emulsions were considered to satisfy these
requirements best-and were the subject.ofextended tests,. A*
CardA/3

Roll Lubricatioriin the Hot H/01/i/60/000/010/00.1/004
E190/E580
concentrate consisting of 85%,spindle 011, 10% oleic acid and
Wtriethanolamine as-emulsifier was used in a 1-0concentration.
The emulsion was difficult to.prepare and-it was unstable; its
-wetting and lubricating properties were pooIr for sev.aral days.. but
improved-in use. However,.its' life was short and,staining was
heavy.-,'From staining tests,carried out-in Erichsen'domes..by
evaporating the emulsion at 3500clit wa.s.concluded thato leates
are the most.likely cause.of staining.* Roll coating~was rather
heavy and unstable. Attempts at improving wetting by''increasing
the triethanolam.ine concentration..resulted in loss of emulsion
stability., Emulsions m Iade of 0.5-1% cutting flui-d:and.Oil%
Isfactory-
sulphonated fatty alcohol as a..wettin&,~agent gave.sat
0C
results when used at -55. and led to increased production. For
50
a routine check,of concentration,:11 ml of emulsion was added.in a
butyrometer-tube on top.o.f.10 ml'H 2so~ followed by I ml* amyl-
alcohol. After heating at 65% 'for Min, the~mixture was
centrifuged at 1000 P.M.-for 5.min and the amount of separated
oil read. The sulphonat,ed fatty alcohol was actually.in.the form-
-illy,
of the Na salt and its concentration was determined iodometricz
Card.2/3

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