Giáo trình ma sát học - Chương 1 ppsx

Glao trinh " Ma sat hQc" c1U'~cvltit nhc\m phl;!c vl;! cho cac lejp cao hQc ngimh kY thu~t Cd khL Ngoai ra no cCingcO th~ dung c1~tham khao cho sinh v~n Cd khf cac nam cuOI, cOng nhU' nhO'ng al cO mong ·muOn tfm h~u v~ ma sat d~ cO hU'dng nghi€:n cli'u v~ linh vl.!C nay. Glao trlnh nay cO sl.! tham khao nh~u tall~u cua cae me gta trong va ngoai nU'CJc~ linh vl.!C ma sat, Song vdi trinh d~ cOn nhi~u h~n ch~ cCing nhl1 v~c n~m bc1tthOng tin cOn nh~u kha khan, thO! glan chuAn bf It ~ il6n ch~c chan khOng tranh khoi nh~u sai S()t. Tac gia mong muOn dU'~c Sl.! gap 'i va ph~ blnh d4 l6.nsau cOth~ lam tot hdn. Chan thanh earn dill Ngua bi€:n ~n. itb. -p~ -pt"t .4,. 1 ~" ". ic;Crtt1d'NGl , DAI CU'dNG VB KY THUAT.MA,SAT , . • 1. Khil nl,itl'chung: " , c"," ( •. ~ , Ma sat Ia h~n tU'c;Kl9tOn~l trong tl[ nhi&rl,'imang ~i cho oon ngU'a nhklt' va; 'tL\'a;' a.o' ptlep- t\am con't3u, OtOdang eh~y vdi tOedQnhanhtro'tlg khOanh khae, ghi giQngnoi oon ngua ~n dia ' '- " E>6nnay v~ nhi&uphLfdngd~n, masatVlin can ta mQtdi6u bi ~n. Trong qua trinh ma ~tv2f Chi trong qua trlnh do da dOngthdi xay ra cae qua'trfl'lfi' 6<1' hQe,d~n, nh~t, hOa va rung d~ng. Ma sat cOth' tam tang h~e giam dQ b6n, hlQng cacbon '{rongklfn'~, tam thAm h~e m'tHydro, b~n dOi vang,'~cfi ram thanh Oxyt, dann bOngChiOOth~e han chting:'M.,'Sit,ta'qua trinh tl[ t6 chUe,trong do cae hklrin;~g -~Yl"a 'thee> mQttrinh tl[ me djnh va hQPIY. cae h~n tUQIlgnay dan d'n Sl[ pha huy bA'm~t, h~e ngU'Ci'C~i ~o"tiffn~t h~ giam d~ ~ ;r ,!" .• - . mon, va,mil sat. ,.' Gcinli6n va ma sat ta mQt'1rOngnhong vein d~ cAp th~t nhAt : s,-! hao mon cUa'may m6cva th~t bi. Chi phi cho ~e sUa chua may rOOcdo'tfae\fnon reit ldo va tang ~n hang nam. 'Keo'daftti61'''th:qclia may du " mue d~ khOngldo et1ngngang va ~d·(flta vao mQt I,-!e hlQngsan xuAt dang k~. VAn d~n§ydllQ6sirquan ~m dOngdao cUa cae nha thitit k' cOrig~; 'nhUng ngua sa dllng va cae nha bae hQecUa nht6u<nganh khae nhau nham dua ra nhUng bkln phap '" 'lh~tk~ cOng ngh~ 2 cOngnhlt sU'dl:lng d~ n~ng cao tuOi th9 ctia may; d~u nay lam phcit tr~n b~c,.tbu~1 ~,~a sat - mai mon va b6i trem. Khao ,hge n~y 4.Lt9(rriSh~n Cliu r¢ng rai trong cae nha may, "cae trii(in~'<Lji tipc, @(; ',vi)ii ~ngh~cU'u va da d~t dltge nhung thanh tl!U rat quan tr9ng. SU'dl:lng nhllng thanh tL!Uay eho phep ta :n~ngp~oJo r~t W~ "'9 v.ad¢till~Y: q;.a ma,y. • 2~"NhinethgMntH GbMab:~ r.a.;ir: >,11"" , " '"j, ~" - -=' '$I'lj~" ,', " . 4" . ~ . -, . __ •. ' . - , " ."_ "'-~ '. :: '! .i: - SL!bOitran; "~~.ctUJy~lLdich SQ, ~;,-, >-, _ ':'~ ~ l1gem~ ~t;- ,:)~ao.4TlQOi ,'" , :~,:,~lDt~mGn;- " to: pr,},-, C'!' .,'~. ,:> ,:-~ ••-; ,.,.', ," - .• H6,$O barn·diIlh; " . , ~J" , ,'~H.~ fJ@fJPrit;" 'J.~_~__ ~i-"'~" ,: -,HciaJlocJnasat; , ~ . " .' '.' j -' "I" C ,·-Kkn·Iea; hnG,~ng;=i ., ;" "''''r''~ '\!l-'-':••• J. , __·,e~~ ~_~ , J, _" JL'~:"- __·~,; .'__~-" < • ~ thuAt ~~., ". -",r'y, ,',.~ . @Ci\ ~r t',.' , ' ~l,.l1~rna~~t;, ',;-,~,h{ • LL!Cma sat tinh Idn nhat; ,r; ,,,:tHll'}.C masat; !" ~!sat ~,bOitrdn~ .~.Masat d~ng; '. , Ma satkbOng~i~;,.,~ .•Ma, sat Jan; , -Ma,~1ngqcilij. •.·Ma:sat tinh;: . ; • ~a sat trltQtj St1m§I~rnc:,n; 3 - V~n tOetntc;rt; - V~t I~u bOitran. • 3. N9i dung h'ftoi~CiuakY thu •.t ma sat h9G : 3,1. ~~ng, ehti cc:ieI<'t ~u ma sat khOng mon nhl1 n~rig cao dQ cung M m~t ma sat (th~m Cacbon, Nito, Xyanua, m~ CrOm,tOib~ m~t ). T~t nh~n trong trLt~g.hQP ap ,~uc!lt~u~.!dn thif<;:a,?phl10ng pbap.tr~n -khOrig'cOnthich hQpna~;.~~di.J.~~)~~~~gh~n cuu mQt kha nsmgdap ung dl1Qclhi'dilg hQPd6 fa phl1d1lgphap djeh chuy~n chQnlQekhi ma sat. , 3.:r 81.0 v~chiti6t khoi.•sl1mai mon,My'oro,do la . '. , .' , .• ,. ,,1ft .', . 5t! ~P:~~~:H.~~rc>. ~r,~tm~~ch~ ~.lfl(tg:~~,~~u. P6i tran, nfflih I~u, mtdC )1am fang nhan,hslf mal mono '., 3;:?; ~~~cncUO!>h~On? .P~~P~~J~:,~ng~rcuOi khOng1i~h\l1.Thl!e ch~t Ia ~ m~t chi t~t ma sat dl1Qe phu n1QtJapman Lalin;ibronzo, h()~edOngb~ng ph'uang phap-chuy~ndjch kim lo~i khi ma sat. Trl1dekhi phu, b~ m~t dltQCi!y ~ch d!u m6,vad~~ phu bc\ng.,Glyx~rin hay h6n hQpGlyx~rin + A1fSulfuatlc ~~~ 1'0%). Trong qua trfnh ma sat mQt lap 6xyt tr~n ~ m~t thep bj pha hUy, tst rri~t hex>kim dOng dltQCdeo h6a va-x~m thl!e vao thip: iCfll1iu day' tOp dOng hay' Latin djeh ct1~y~n khoang 1d~n 2 JJl11 . . _ ." _:- '. r .•• 3.4. Hoan'th~n h~ thOngbOitroo va mo r~ng san xu"t .chung. Trong' 'vl~e.ell' ~o ca'e h~ thOng b6i trdll n!y' -phai k~ dtin hang "FR6GHEN" cuaE)uc hay "mASON" cUa My , , ~, ,'" , ;! , .'. "i :'''~' ,"'! : •. ,,', ,; , ,'.001; ,,3.5. N~dung eua 'Iy thuy~t v~. ma sat va_.mai mono ' :j ~_._ 4 . ~!sat ~,bOitrdn~ .~.Masat d~ng; '. , Ma satkbOng~i~;,.,~ . Ma, sat Jan; , -Ma, ~1ngqcilij. •. Ma: sat tinh;: . ; • ~a sat trltQtj St1m§I~rnc:,n; 3 - V~n tOetntc;rt; - V~t I~u bOitran. •. .P~~P~~J~:,~ng~rcuOi khOng1i~hl1.Thl!e ch~t Ia ~ m~t chi t~t ma sat dl1Qe phu n1QtJapman Lalin;ibronzo, h()~edOngb~ng ph'uang phap-chuy~ndjch kim lo~i khi ma sat. Trl1dekhi phu, b~ m~t dltQCi!y. "'9 v.ad¢till~Y: q;.a ma, y. • 2~"NhinethgMntH GbMab:~ r.a.;ir: > ,11 "" , " '"j, ~" - -= ' '$I'lj~" ,', " . 4" . ~ . -, . __ •. ' . - ,