Document R9475g2BjpaDwVjQZ5OMQBr7

.-- ,niii*rn 'nutfw') j iafiwg.Vi-w.' <tV,* 1ihr,^jW>i.Mfc. LEAD INDUSTRIES ASSOCIATION MTW row 17, v. mill n m ii > ii iii III >11- .......................... .. ...- i Fbr4i7 19, Iftft to imbin of th* ted load DlvUiofti rapw 9f saSOTJKTt mtas cr m tap rarwn o re Tcu will find *aelo**d 4 roprlnt of th* papor oo th* *ff*ci of rod load point* oa th* voiding of otructorol iUtl< popor contain* th* rrcult* of 4 project ca*pl*td U*t j t mt , apoa> orod bjr th* L**d Induitrio* i*oclatloc *t B*tt*U* KworiU ZnctltaU* Or J.'twfr mr technical Director Bed U*d Dirltloa * fr fc ? ....i n iii i i Ot Studies on the Effects of Red Lead Paints on the Quality of Metal-Arc Welds in Structural Steel* 3f x w. Bmm, j l a wmiM ** c . & ***** TUa pH" h fc>n< I w4jr cl (W liwO n4 M U pdau a* tkc Mkty cl *Mc la cuwtwtl "mi. C--i irniDy a**ftfeN iW Im4 pyu u*4 inwil raft N4 k m4- p<wl pMt* *n u4 (kttr dkti a ii>i c m> Mn4 *tu (kow UK ch u-- >1 ha ^KfU m4 t --W Ki TV wruil c Wu t k t k u o d tka fartratec, tkc atr*l nui m cf tkt viM m> * M a*iMni tna *m m4 m mum Nr rum)--tia tkc raNUaa 4arts W tkc lariwB ytc M nlln| m4 *c*4 f*4iy. Tkc taato kk<u< ik*L N |iiait. mm4m~ \my *aMa c m ka yarta4 m cud *nk *c tad ! , cf ft tlftirfallkaMMi wcHiftC* putintUrfy )m Uh ni|WUtk < wjr krft proportion* of red kai. Ob the Wait of the toitiftl tr*U anrcrtl nd feftd I pifmrol pftiata, witk reduced proportion cf rad lr*d ift ihr ppwat, tan H (<r fonW livtBipta. B*piurfttury trvU mdintcd thftt aatidftctory wddiai br door oo pUlr* cotUd with then ptmt*. Fa M am cuoprthnatt wrld*nf (Mi vm the* i with rat of the red kftd Bised-piftBcat psiftti ftftd Ikt Rftiltt of that Mi ftv dnautd bdov. For eon* ptfdnB. coapftBcoa- tr*tt were ibo m pUtn, ud o b pUtco totted with nc chmnlr 1 point! ind hi|h4nd<o!tnt red bd boor pMitt, IN THE put, fpeciftcatioaa far tho welding ct (ted grimily inland that li pamt, me tmui|\ __ pi, ai dtft and Mbn tarin tuliap or waUnauati bt ttnond frueu the knot pt*M tu welding. Recent nprrirarc hoi fhowu that withal (nnubk kouta. this film* ad paint. Line or tal are out kmunl^r ktmfaL Cooequeiitly, ooenr pmficatioaa Dow permit the himtod appbcatioa of pwittirt Una la Mm prior to welding. Thc axitrtuuo ef thr UMiaaqr oa paiot* ud athrr rooting* ia that ban. clru mrfotet an atiB to br peeIrmd when tbr atmaet is wrbJ-Joort anility rod rebabilMy ia dmnd. Far (boar iaotucra when paisUanprr- out ted. tbm ie u yet Do (rami agreement oa the condi* boa which an acceptable. Owing la (be doacerpaarira ia armtable data, ana tbr arvnty af information aa tbr effect ad eariow pout* a metal an weM*. thr Lead Inductile* Aenonaboa utbarurd BattrDr Mrawral Inttituta la ready ceetaia oapret* od Uu* iptMioa. Tbr object!er traa to evaluate the cuenparatrr* effect* id wlected type* ad pnmeng paint* oa the *tnorth, durtihty aod Iraindnm at Mtrtal-an weld*. The effret* od tbeer paint* oa tba oprtmtmf cha/acteeiclk * id thr rlectrude* oananaly mo m ia ftrvdoral weWlinf (nrdoeninairtty A.W ff. CWea F.flOlOl wm aha to br ftndied. Aftrr tbr fret tvailablt lepeU aa tbr effect* ad paint* ia weidinf bad bran atodird. the EetuQr taveatifaUa woe fteeted with liMi ad a ceAeddeTabt* airnilwe <d red Wad Iio m aod nac chruaut* ba<* point*, and fhimri reelleiiunr earWxie prufewtiuei* id different ptfment*. In fenetU. lb* intlueae* cl tbr enituv* paint* aa thr letnnftb ad the welled jl* ** an( varr preAuuacad. "rerejc tar tttnaHhr thak paint Una itowevre, tbm wai kaartnaea * nuUnabt* ademt effect aa the tan ad aa* W Can l !**? r*>d Mod Tbr poiat* and ia tbia iovretifatioa wen upaSad by tbr Red Lead Technical Coenmitte* ad tbr Lena Inin trice Aeoneiatina. and are luted ia Table 1. Fur null ad thr trata, oar-cuat paint* wen fpnyed aa picklrd or reit blutrd Mcrl pi*tee to a dry Un thirkam ad 1 to 3 md* <0.001 to 0X103 .). The 6hn tluckneae waa neoaured with a MafwOafr. aod *pat duck* were and* with a mecTuenetef. A lumtad atunoer od tat* w m and* with plate* (a wtuck point wo* applied ia nahiplr cuata to a incknaa ad aboat 10 mda. With tew taatpliam, *1 ptOaai-nO-t-|e--dwTItplQlfa*Qiat* were aOoered to dry thuroofhly brfoea 5wd Tbr fteed nrd thraarboat tbia iaeatifatioa waa /, ud Vein, mrdtumcaibua Meet plat*, coadorawaata Saey IWpartnmt Sprcifiratma Iwi. Geode M. Tka bark tip tooferial b*ra for anflr-V batt joint* wa* VVto. bot-rud taedium-rarboa atrip id wellinf quality. Tba toot plate* wen rut to fin ud beetled, when required, by bar rutlinf. The auHor* ccmbticai od tbr pintoo prkw to pointing wa* tilhrt: (I) no receierd, with oul real* intart. (2) periled to a hr* wlpbaric add fotatiaa coatamng aa inhibitor, foOuwtd by arioar In a 1% phoa* pkuor and enlutioa or (1) fell UaaMd. WUi*t KUdrcim Thr electrode* and far thr toot* am roaaaiiirUI brudtud the loGowing type* aod etna: A.WJL Clm KffOlO t'.noil Mull nam Wang, la Va aod '/ */o and / / XU /* FepnaadAeei Too hi Jaaieac lUaaaacu Ikmeaaet .Mewwiw net \ N2778.01