Izmeneniâ v obodʹâh železnodorožnyh koles s raznym profilem poverhnosti kataniâ v processe èkspluatacii

(1)

ZESZYTY NAUKOWE P O L I T E C H N I K I ŚLĄSKIED

S e r i a : TRANSPORT z . 1 5 N r k o l . 1 0 9 4

___________ 1 9 9 0

ïpHÜ TAPAH, BacHJiHii ECAyjIOB CBeijiaHa rYBEHKO,

^OJIBrA

&EMHAOBA

te e n p o n e ip o B C K H ii u e T a jix y p r jK e c K H f i H H CXHxyx

H31IEHEHHH B OEOAbilX KEHE3H0A0P0ï{HUX KOJIEC C PA3EHM nîOîHJIEM nOBEPXHOCl'H KATAHHH B TOOUECCE OKCIUiyATAUHH

Pe3PM e. P accuoxpeH ti cxpyKxypHbte H3ueHeHHfl

b

cxajiH

bc S a h sb n o s e p x -

HocTH K aTanaa z:eae3HoAopo2cHtoc K oxec o npesejBHHM

h 3 h o o o m

oOoAbeB.

HooneAoBajiKCB

K o o i e c a

o

h j i o c k o k o h r ^ o c k h m h k p h b o j i h h ô ü h u m n p o j u u i e u

noBepxHociH KaxaHHH.

I l 0 K a 3 a H 0 , h î o b n p o u e c c e

sKcnAyaTanHH

h 3 k o o

noBepxiiocTH KaxaHHA

c o n p o B o s n a e i c s

noHBxemieM

s o h h

njtaciH secK ofl

a © -

$ o p u a u n a h

"C ejio ro

c a o h " ,

KanecxBeHno c ip y K iy p H u e H3uoHeHHH

ajix o6oux n p o ^ n a e K n o B e p x H o c m oAHHaKOBH, o A H a s o , y p o B e H b i u i a o T H a e o K o a AeÿopM anH B h r a y f i H H a s x o f i 30Hbt n o mnpHHe of io A a a iw box pas AH UH tj.

3 l O CBH3aH0 O p a 3

JIHHHHMH

n o B e AHBHHe KOKTaKTHhWB H an pas eK H B M K , a TaK—

s e COOTBeXCTBHeM npO$HAA KpHBOJIHHetHOa nOBepXHOCTH K ai aH H A X a p a K T e -

py

H 3 E o o a *eae3HOAoposHux Koxéc npH o K o n a y a i a i i H H .

n o A y a e H U H e p e 3 y j n > i a i n y K a 3 H B a o T n a n e c o B e p ia e H O T B o n A o c K O K o m m e c - k o 8 n o B e p x H o c T H K a i a H n a

c

yKAOHauH 1 : 2 0 a 1 : 7 , cn o c o f ic T B y D ią e f l

HeoA-

HOpOAHOMy p a 3 B H T H » UAaCTHECCKHX CABKTOB B6AH3H nOBepXHOCTH Ka iaH HH H yCKOpCHHOMy K 3 H 0 0 y KOJieC.

M s h o c ateAesH O AopoüiH ux K O A ec c o n p o B o a c A a e rc fl cTpyKTypHHM M h s m © - HeHHHMH, npOHCXOAHUHMH B TOHKOM nOBepXHOCTHOM CAOe 0(50ÁbSB. 3 t H H3M6H8HHÍ1 CBH3EHU C pE3BMTH6M n A EC TH H EC K H X CA B H rO B OT A e îiC TB H H BHeDHHx H a r p y 3 0 K , t o h a o b u x H a n p H xsH H ü n p n TopMoxceHHH, a T a m te o ó - pa3OBaHH0M "d e A H x c a o s b " npH H a r p e B e t o h k o t o n o s e p x H O C T H o ro c a o s b aycTeHHTHyio o tíA a c T b o t T e r u a TopMostaHHH m p e s K o r o oxAaxw eHHH n p n OTKAXmeHHH TO p M 0 30 B • Se aE H E nOBHmeHHfl HaneKH O CTH H AOArOBSHHOCTH KOAec C B H 3 a H a c n epexoflO M H a n 3 ro T O B A e H H 8 h x H3 B a K yyM H p o sa H H O íí CTaAH,

a

TaK S¡8 C COBepUI8HOTBOBaHH0M HX K O H C T p yK U H Îl, B TOM 'HHCAe Pa3paÓ 0TK0ÍÍ OnTHM EAbHOrO n p O $H A fl nO BepXHO CTH K E T a H H H ■

H ccA SA O BaH U u e A b H O K a T a H u e K O A e c a , n p o p aô o TaB Œ H e 5 a s t n o n n a c - cawipcKHM co cTE B O M M a p a p y T a Í H e a p o n e ip o B C K - M o cK B a ,

Koxaco ft I

HM8A0 C TaH A ap TH U Ü nAOCKOKOHHH0CKH£î, KOA8CO ft 2 - KpHBOAHH0ÍÍHHíí npOi*

9HAb nOBepXHOCTH K aTEH H H . XHMHH8CKHÜ C O C T a B CTEAH H C C A 0 A O B a H - Ht|X K0A8C n p H B 8 A 6 H B T E Ć A .

I . B

p 8 3 y A b T a T 8 n e p 0 T O H 0 K ÓHA nOAHOCTbD W aA0H TepM HHeCKH OtípaÓ OTaHHHÍÍ CAOÜ .

(2)

2 4 6 10. TapaH h Apyrge

TaßjiHca 1

X H M îi'je o K H it c o c T a B c T a a e i ł H c c j i e a o B a H H H x x o j i e c

HoMep CoflepKEHne ojieMeHTOB, 0 6 .%

xojieca

C Mn S i.

S

^P

C e Al i eu

I

0 ,5 9 0 ,7 2 0 ,3 4 0 ,0 2 5 0 ,0 1 2 0 ,1 4 0 ,1 5 0,2C 2 0 , 5 7 0 , 7 3 0 ,3 4 0 ,0 2 3 0 ,0 1 2 0 ,1 4 0 ,1 6 0,21

ílp n BH 3ya^bH 0M OCMOTpS K0J18C HE nOB8pXHOCTH KETEHHH KOJIBCa )fl o ó H a p y *e H u T a x n e seęeK TU x a x n o ji3 y H eytnHUMHtiíí, HaBOJiaKHBEHne M eiax- j i a , oTCJiosHHK, H a n jiu B MeTayiJia c n o B e p x H o c ra xaTaHHH Ha HapyKHya 6o- KOBy ) rp a H b o ó o ^ a , ycT a jio c T H o -ic o p p o 3 H O H H u K h3h o c. Ha n o B e p x H o c ra KaTaHHH K O jie c a B2 h m b io t c s y n a c T X H xo p p o 3 H O H H o ro pa3pymeHHH u Hetío- jibraoH n p o x a T . B o r a n n a e o t x o jie c a M , y x o jie c a $ 2 He n p o n3 o a u io a s - H o ro HCKaateHHH npoçpHJifl x o x e c a b n p o u e c c e o x c n jiy a T a u H H , T a x k e k hbt r p y ó o b upajKeH H oro H a n x u B a .

M

3

KOJiec BupesajiH nonepenH ne TeMnaera h b stom ceneHHH H3yna- jih xapaKTep CTpyxTypu x o jiec no wHpHHe o d o a a . MuxpocTpyKTypHHii ana- JIH3 npoBoflHXH Ha onranecxoM MHKpocKone "M&apbot-¿I", Onpe^ejiaaH napaMBTpu CTpyxTypHoii HeoflHopoAHOcra ct&jih (rayöHHy

3 0

H c pa3JWH- hoîî CTpyxTypoK, cTenenb BUTHHytooth se p e H )

[ _ 2 J

. MuxpoTBepaocTb CTEJIH

^B

TOHKOM HOBepXHOCTHOM CJI08 M3M6pHJIH Ha npHÓOpe

HM T-3

npH Harpy3Ke Ha m w eH iep 0,48 H. S xa&floM CTpyxTypnofi 30He npoBoaKXH 8-15 3aMepoB. Pe3yjibTaTH H3MepeHHH napaM eipoB CTpyKTypa h MHxpoTBepAOC- TH OÓpaÓETHBajIH CTETMCTHHeCKHM M8TOAOM. IblOTHOCTb AHCJIOKaUHÍÍ

B 110-

BepxHOCTHOM c n o e onpe^ejiHjiH peHTreHocTpyxTypHHM aHajiH30M npH

3

ann- CH peHTreHorpaMM Ha peHTreHOBCXOM AHiJipaKTOMepe

ÄP0H

-

2 ,0 .

MnxpocTpyxTypa

(

x

2 0 0 )

oöohx x o jib c b ó jih sh nosepxHOCTH xaTawtH xapaxTepH3yeTCH HajiHweM

3 0 h h

AeiopMHpoBaHHUx 3epeH (p n c .

l a )

h ynacTXOB "öejioro exon" ( p n c . 1 6 ) . FlonBJieHHe s o h h aefopMHpoBaHHHX 3epeH CBH3aHO CO CMHTH8M M8T£UUia

B

XOHTaXTS C pejIbCOM OT ÆaBJieHHH*

lljiaCTHHeOKHe CABHrH

B

TOHKOM nOBepXHOCTHOM CJI08 npOiDJIH

B

'yCaOBHSX

OTHOCHTea.bHO BUCOKHX AEBJieHHii

H

BHXJIHM8CXH H3MeHH!01HeííCfl T8MnepaTy-

pH. XapaKTep MHxpocTpyxTypti CBHaeTeabCTByeT

0

HeoAHopoAHOM npoTe-

KEHHH

r u a c r a n e c x o K

ae$ppMauHH no

cenaHHio

o6 o ^ a x o x e c a

M . B 3 0

He

BUXpyiKKH 3epHa 3HaHHTejIbHO BHTHHyTH H H3M6JIbH8HU, HpH BHXOfle HE

noBepxHOCTb xaTanna 3 ep n a xpynH ee,

c T e n e n b BH TH H yTocra

hx

H ecxoxb-

Ko CHHataeTCH h c t e h o b h t c h B ee MeHbme npH noAXOAe x cepeAHHe noBepx-

HOCTH XaTEHHH. ílpH yAajieHHH 0T CepBAHHH nOBepXHOCTH KâTaHHH X HpO'

THBOrpeÖHSBOil CTOpOHe CTeneHb BHTHHyTOCTH 38peH BHOBb BospacTasT

h CTàHOBHTCH 3HâHHTejibHoii y

x p a a

o ó o ^ a . XapaKTep CTpyxTypu b otoü

n a c r a noBepxH ocra xaTaHKH CBHA8T8jibCTBy8T

0

SHanHTejibHOM Teñeran

CTajIH

B

3T0H 30H e, npHB8AlU8M X H3M8H8HH10 npolHJlfl

K O jie ca .

(3)

IÍ3M6H6HHH B O Ö O Ä L flX . .

247 P u c . 1

B

3 0 H e H a n jiH B a oÓHapyjKOHH p a c c jio e H H H , op w eH Tnp o B aH H ue n a p a ji - JiejibHo n o B e p xH O C TH ¡ c a T a r o « .

Kas

n p aB H .n o , ohh p a c n o jia r a s T C H H a r p a - HHUe Mesmy OÖJiaCTHMH C p e 3 K 0 p a3J!H H H 0 ií M H K p O C T p yK T yp O il Yi p a 3 4 6 ^ H - ST 3ohh B H T H H yt u x u paB H O ocH H X 3 6 p e H .

HanaaB

n p o H C xo flH Ji n O c x e n e H - H o, CJIOflMH, K O TO p ue npH CB08M CMBmeHHH ÆeçtlOpMHpOBanHCb . flpM 3TOM b h h x B 0 3 H H x a jiH x p y n x n e Tp en p iH H , cn o co d cx B y io m H e p asp yin e m n o M e x a jijia

b

c jio H x

. Ha

caMOM Kpaœ H a n jiH B a H a d o x o B yio r p a H b o d o a a H aB H caiox j i e - neCTKH C CHJIbHO 46ę[)OpMHpOBaHHOi5 c x p y ic x y p o n ( p n c . I b ) . Ohh T a io se

(4)

24 8 K). lapaH h Apyrae

C BH jieTejibCTByioT o nocAoüHOM MexaHH3Me H a n x tiB a . ińejKAy o th m m c a o h m h , à Taxace Mexmy HaiiAHBQHM M e ia x jio M h ó o k o b oK rp a H b io b k a h u Tpeium m .

T jiy ó H H a 30HH flQifiopMHpoBaHHbix 3epeH n o ajHpHHö o ó o ^ a ne o a h h e - KoBa ( T a 6 x . 2 ) . H a tfó o jie e r A y ó o x o n x a c T H n e c x a fl ae^opM auH H p a c n p o c T - p a H H jia cb B MOCTe BuxpyxiKH rp e ö H H n b 30He H aiiAUBa y x p a s o tío A a . C re n e H b BHTHHyTOCTH 3epeH <£ no3EOAH8T cyA H T b o CTeneHH A o yo p M a-

« h h oiajia b n o B e p x H O C T R O M c a o e o Ö O A a . B 3 0 Ke BŁiKpyKKn BejiHinHü

8 ao-

o i H r a x i T

65-75%,

^{3 a i e u} cnaxasoxca n p H Ö J iH 3 H x e jiL H O a o

22-25%

^b cepc A B K e n o - B s p x n o o T H K a i a H H H a SHaaaxejibHo B 0 3 p a c T a B T (ao 9 0 # ) b 3oue HanjiuBa.

X a p a K T e p k3M 6H8K hh M H xp oT B e p A o e ra a H a jio r a n e H . Î I a o t h o c t b AHCAOxaLWñ, onp eA e xe H H a a p e H T re H O C T p y x T y p H tw m ö to a o m , T a x x e He OAHHaxoBa b pa 3 - AHHHHX MeCTax IlOBepxHOCTH KaTaHHH ( t a 6 A . 2 ) .

y

HacTKH ó e A o r o e jió n npeACTaBXHiOT e o ó o ft ô e c c ïp y x r y p H H H M ap'reH- CHT (ra p A 8 H H T ) ( p x c . I ó ) . 3 t o x p y n x a n c T p y x T y p H a n cocTaB AH nm aa, x o - T o p a a BUxpamnBaeTCH b n p o u e c c e paóoTbi x o x e c a . rio H B x a e T c a "ó eA K ñ CAOfi" BCA8ACTBX8 H a rp e B a TO H Koro no B e p xH o cT H O i’ o CAOH o t T e n x a T o p - M0K8Hxa a o T 8M n e p aT yp B üàe Ag u n o c A S A y a m e ro p e s x o r o o x a o ^ a s h h a n o c x e OTiíAsiaeHHa TopM03HHx k o a o a o k . illH pxHa " ó e x o r o c a o h * c o c ra B A a - 8T 2 0 - 4 0 MXM•

XaöAHixa 2

3aaaeEHS BexaHEH c x e n e u a B u i s i i y i o c i H s e p e H ^ fi , rjiyÖ HH H 3 o h h n a a o iH a e c - K K X C A B H TO B h H IU IO T H O C TH A H C A O K aA H Ü <p_¡_ B p a 3 H H X y a a O I K a X n o B e p X H O C -

TH K a x a H i a K o a e c E 1 h ® 2

»

x o x e ^ ^{£ } ■ %} MKM J 0 ± , C M " 2

c a

<ti

«

>»

0-4 X25 fq

Ci X

§<D

© O

«35

X cd W

&

« 21 W

cdX

§© CU© o

25

§X

cdui

«

>*

u:Cu 35 W

cdX s fcC©

© o

«25

* X5 -

I 6 3 - 7 5 2 2 - 2 5 9 0 3 0 0 3 0 6 0 0 9 , 2 2 - I O 1 1

6 , 5 4 - I O 1 0

3 , 7 3 2 - 1 0 9 9 , 6 0 4 -IO11

8 , 0 6 - I O 11

2 6 0 1 0 7 0 1 6 0 2 0 - 4 0 4 2 0 6 , 4 1 - I O 8

X a p a K T e p M H x p o c T p y K T y p ti n e p B o r o x o a e c a b ô x h 3 H n o se p x H O C T H x a - T a n n a ^bH anp aB A 8H H H xaTaH M H a H a a o r a a e H paccM O TpeH H O tf b u b s r a h n o n e - p e a H o r o c e a e H H a , O A H ax o , c T e n e H b B H T H H y T o cT H 3 e p e H b npoAOAbHOM H a- n p aB A 8 H X H 3 H a a H T 8 A b H 0 ^BŁJH8.(IpH H 3 yn e H K H M H X p O C Tp yK Typ tl B nAOOKOC- TH K a TEK H H 0 Ó H a p y¡£H B a8 T C fl CXOSCHllK X a p a X T e p T8H 8HHH CTaA H B r iO B e p X - HOCTHOM C A 0 8 . n o H an p aB A eH H O C TH 3 8 p e H BHAHO , MTO T8H 8HH8 CTaA H ^B 3 0 H 8 BHKpyjKKH ^{H B}U 8 H T p a jIb H 0 K H ä C T X n 0 B 8 p X H 0 C T H K â T a H K H HOCHAO x a - M HHapHHii x a p a x T e p , ^{b t o}BpeM a x a x ^bSOHO H a n x H B a e c T b o ó x a c T H o H S O rayT H M H ^H3axpyM8HHtJMH 38pH£LMH, T A e T8H 8H H 8 C TaA H H00HA0 ABHO

(5)

iÍ3MeHeHHfl B O Ö O Ä b H X . * ■_ 249

BHXpBBOÍÍ TypÖyjßHTHHÄ XapaKTßp. MeKfly 30HaMH C pa3JlHHHOB OpHóHTH—

pOBKOÍÍ B03HHKJIH MHKpOTpeiUHHbl.

ß nonepeaHOM ceaeHHH

bójim

3

h

noBepxHocTH

ketehhh

K oaeca M2

tek

-

¡se HadaioaaeTca 30Ha BUTHHyTax 3epeH, CBUfleTeabCTByiomHx o naacra- leoKHx csBurax, npoTeicaxHUHx ne paBHot-iepHO. B 30ne BUKpyjKKH sepHa SaTHH/TH H H3MejIbHeHU, npH BHX0Ä6 Ha ÍIOBepXHOCTb KETäHHH CTeneHb BÜIHHyTOCTH 3ep9H CHMJKäBTCH• ÍIpH y^ajieHHH OT CepeflKHH ITOBepXHOCTH

SaTaHHfl CTeneHb BHTHHyTOCTM aepeH BHOBb B03paCTaeT

^H

CTáHOBHTCH 3HaHHT8jibHoß y Kpaa odoaa Ha oaenb nedoabiiioM paccToamiH. V HapyjKHOß ÖOKOBOß rpaHH oóo^a nponaoraea Heöojibiuoß MHKpoHananB, He npHBeaoiHß, OJHaKO K H3M8H8HHH} npoJlHaH KOJieca.

FjiyÓHHa 30HU naacTHaecKOß aeçpopMauKM rv y icoaeca M2 sHaaHTe- JtHo weHbiae, H8M y n o n e c a MI (T a d a . 2 ) . CTeneHb BUTHHytocth 3epeH bójm3h noBepxHocTH KaTaHHH KOJieca M2 MeHbiue, aeM y KOJieca f e l p a d a . 2). STa pa3HHua co cT a sa a eT 1 0 - 2 0 $ , h t o cbh3Sho c MenhuiHMH SHaaeHH- hmh koh tek th u x HanpsKeHHß b cjiy a a e KpHBoaHHeßnoro npotpHaa n o s e p x - booth KaTaHHfl, OópamaeT Ha c ed a BHnwaHH9 cobcbm He3HaaHTejibHaa CTeneHb aeęopMaiWH b cpeaH eß aacTH noBepxHocTH KaTanaa - 1 0 $ . P e - 3yjibTaT peH Tr8H orpa$naecKoro onpeaeaeHHa naoTHocra aHcaoKaiwß n o - Ká3aji, HTo hx njiOTHocTb no innpnH6 odofla n3MeHaeTca, ho ocT aeTca na nopaaoK MeHbuie o jio th o c th AHcaoKaunß y KOJieca Mí ( ï a d a . 2 ) .

PjiyöHHa " óejioro cjioa" b K oaece M2 cocTaBJiaeT 2 0 -6 0 mkm. KaK u y Koaeca MI, oh HMeeT npepHBHCTHß xapaK Tep. ElapaMeTpu " tíeaoro caoa"

b oóohx Koaecax tían3KH, h t o od tacH aeT ca dansKHM cocTaBOM c i a a e ß . OjHaKo, b cTpyKType " d ea o ro caoa" K oaeca M2 hmbiotch .ancnepcHue ue~

HeHTHTHue aacTHUü, KpoMe T o ro , BMaHU c a e a u cKoabxeHHa v MHKpoTpe- 3iHa. "Eeauß caoß" b n p o u e c c e sKcnayaTaUHH npeTepnea caadysj n a a c - THaecKyio .neipopMaiwio, npHBeaiuyio

k

e r o pacTpecKHBEHHD.

XapaKTep MHKpocTpyKTypu K o aeca M2 Bdan3H noBepxHocTH KaTaHHa b njiocKocTHX Ha npoaoahH H x o d p a 3 iia x , pacnoaoKeHHHx nepneHÆHKyaap- Bo k noBepxHocTH KaTaHHa aH a a o rn a e H paccMOTpeHHOMy Banie a a a n o n e - poBHoro ceaeH Ha odo.ua, MnKpocTpyKTypa cTaaH b naocKocTH K aiaH na x a - ÇBKTepn3yeTca HaananeM paBHoocHux 3epeH h naT8H " d e a o r o c a o a " , aninb y óoKOBoro K paa o d o a a 3epH a c a e r K a BHTHHyTH. B c a y a a e KpHBoaHHeß- Horo npo$Haa noBepxHocTH K aT aaaa T e a e n n e CTaan BdaH3H noBepxuocTH npoHcxo,nnao TaKMM odpa30M , h t o se p H a y a a n n a a n c b b HanpaBaeHHax bih- pBHa odoaa h K a T a ra a v npnodpeaH b p e3 y ab T aT e oaaabeodpa3H y)o (popwy, WsodHyio çopMe 3 e p e n npn npoKaTKe CTaaw.

CpaBIlMTeabHH ß aH£U!H3 MHKpOCTpyKTypH K o a e c C KpMBOaHHeßHHM H BBooKOKOHHaecKHM n p o $ H a e M n o B e p x H o c T H K a T a n n a n o K a 3 a a , h t o CT pyK—

^pHHe H3MeHeHHa

-

K a a e c T B e H H O -

y

h h x . a H a a o r n a H u h 3 a K a i o a a i o T c a b C(5pa30BaHHH 30HH r i a a c T H a e c K o ß a 8 $ o p Mau HH h " d e a o r o c a o a " . O a n a K o , napaweTpu o t h x 3 0 h p a s a n a H H . He cM O Tpa H a K a a s y m e e c a c x o ä c t b o x a p a K -

tepa 3

o h

naacTHaecKHx caBHroB, MaKCHMaabHO BupasceHHux

b m o c t e x b h -

(6)

2 5 0 10. T a p a ü ti A p y m

KpyKKH H HaXIJIUBa, HCHO, HTO ypOBOHb riAaCTHHBCKOii AÖ$OpMaHVlH H r j i y - ön H a 3 o h u , b K OTopoil oH a pasBHBaaTOH y B T o p o r o KO Jieca h h k b , höm y n a p a o r o . llnacT H H acK K e c a b h ™ b k o a b o b ti'd pa3BHBaAHCb b ö o .n e e M s r - KOM pBJKHMB, HTO CBH3aH0 C MBHbUMMH BBAHHHHaMH KOHTäKTHHX HanpHMB- HHtl V! C00TBBTCTBH8M npO$HAH KpHBOAHHBHHOÜ nOBBpXHOCTH KaTaHHH x a - p a K T ep y H 3 H o ca k o a b c n p n 3 K c n x y a T a u H H .

HaruiuB y BToporo Ko.ieca npaKTHascKii OTcyTCTByeT, Tax xax

^{h b t}

HaBiicaHHH MBTajiJia na öoxoByio rpaHb oöoAa, npiiBBAwero

k h sm b h b h h d

npoipHAH KOAeca $ 1 . KpoMe Toro, y KOAaca £2

h b t b o t o h 3 o h b t h k h x

rpyöux MHKpoTpeujHH, xax y KOAOca tel.

GpaBHHTeAbHHti anajiH3 MHKpocTpyKTypu OTanH

b

riAOCKOOTH KaTaHHH noxasan, hto

^b

cxynaa xpiiBOAHHeiiHoro npcxjHAH tbhbhhb CTanH hochao öoabb cnoKofiHHfl xapaKTop, hbm y KOAeca JpI c nAocxoKomiHBCKHM npo-

?HA0M HOBBpXHOCTH KaTaHHH, TAB ÖUAH 30HU HBHO BUpaKBHHOrO "Typöy- AeHTHOro" CBHXpBBOro) T8H8HHH CTaXH Ha MHKpoypOBHB.

HcCABAOBaHHH CTpyKTypHHX H3M0H8HHS1 yKaSHBaBT Ha HBCOBBpUlBHC- TBO nXOCKOKOHHHBCKOÜ nOBBpXHOCTH KaTaHHH (c yKAOHaMH 1:20 11 1:7),

CnOCOÖCTByBIUBil HBOAHOpOAHOMy pa3BHTHD nAaCTHHBCKHX CABHTOB B nO- BBpXHOCTHOM CA08, HB OÄHHaKOBOß CTBnBHVI AS^OpMaUHH 3Sp0H B paSAHH- HHX 30H ax.

ß BK3B pacCMOTpBHHHX HBABHHHX BaiSHOB MBCTO 3aHHMa8T 3aABHa nOBHBBHHH KOHTaKTHOil npOHHOCTM K0A6C H

pSAbCOB,

TaK

K8JC

HHT6HCHB- HOCTb 0Öpa30BaHHH A 8$8K T 0B KOHTaKTHOrO npOHCXOKABHHH

B

KOABCax OHBHb BBAHKa, a AeilCTBBHHUX CnOOOÖOB HX yMBHblSBHHH AO HaCTOHHBTO BpBMBHH HBT. il03T0M y OAHHM H3 3$$8KT11BHHX

nyTBli

CHHXBHHH, a

B

pH- ÄB C A yaaB B AAH yCTpaHBHHH BHEBnBpBHHCABHHHX HBABHHÜ, KaK nOKaaaAl!

HCCAeAOBaHHH, H3AH8TCH BHÖOp H npHMBHBHllB OnTHMaAbHOrO npO^HAH nO - BBpxHOCTH KaTaHHH.

AHTEPATyPA

Q i ] A .A .A aH M O B, H.A.IloHOM apBHKO, B .ß.ilH M A H H , B .Ü .S c a y A O B .

OnäT

BK cnA yarauH H KOAec

c

k p h b o a h h b h h o < ! n oB ep xH O C T bs KaTaHHH. a b a b s h o - A o p o s H a a T p a n c n o p r ,

1982, H ü ,

^{c .}

A5-48.

Qf} CäATHKOB O.A. CTepBOMSTpiIHBCKaa MBTaAAOrpaiJHH. M., liBTaA- AyprHH, 1976, 376 c.

R e c e n z e n t : D o c . d r h a b . i n * . E u g e n l u e z ¿ H i t o r s ‘ 1

W p l y n g l o d o R e d a k c j i 1 1 . 0 6 . 1 9 9 0

(7)

H 3 i i e H e H n a b o 6 o Ą Ł a x .

ZMIANY W WARSTWIE WIERZCHNIEO KÓŁ KOLĘDOWYCH

0 ROŻNYM PR O F ILU TOCZNYM WYSTEPUOĄCE W CZAS IE EKSPLOATACOl

S t r e s z c z e n i e

W p r a c y o m ó w i o n o z m i a n y s t r u k t u r a l n e w w a r s t w i e w i e r z c h n i e j p o w i e r z chni t o c z n e j k ó ł k o l e j o w y c h . B a d a n o k o l a o r ó ż n y c h p r o f i l a c h t o c z n y c h , S t w i e r d z o n o , ż e z u ż y c i e w a r s t w y w i e r z c h n i e j k ó ł k o l o j o w y c h z w l ( ) / « n n Je st z o d k s z t a ł c e n i a m i p l a s t y c z n y m i i t z w . " b i a ł a w o r o t w a "

O t r z y m a n e w y n i k i p o z w a l a j ę w y c i ę g n ę ć w n i o o e k o n l o c e l o o w o ó c i s t o s o wania p r o f i l u o p o c h y l e n i u 1 : 2 0 1 1 : 7 .

THE CHANGES IN THE SURFACE LAYER OF RAILWAY WHEEL3 WITH WARIOUS ROLLING P R O F I L E OCCURING USING

S u n n a r y

I n t h e p a p e r t h e s t r u c t u r a l c h a n g e s i n t h e s u r f a c e l a r y e r o f w h e e l t r e a t e d w e r e d i s c u s s e d . W h e e l s w i t h v a r l e n s r o l l i n g p r o f i l e » ) w e r e t e s t e d . T h e r e w a s a s c e r t a i n e d t h i s t t h e s w e e r o f s u r f a c e lny» <r o f r a i l w a y wheel w a s r e l e v a n t t o p l a s t i c d e f o r m a t i o n a n d e o - c » l l « d ' w h i t e l a y e r ' .