Traramiento Termico Superficial

7/23/2019 Traramiento Termico Superficial

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TRATAMIENTOTERMICO SUPERFICIALINTEGRANTES:

JORGE AYMARAERICK CORONELPABLO SALAZARCRISTIAN YANEZ

CURSO:TERCER NIVEL A MECATRONICA

AGOSTO - 2015


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Carbur!a"#$ E% u$ &r'"(%' )( ($)ur("*($+' %u&(r,"a ($ (

.u( a (%&("( ($)ur("()'ra (% ( "arb'$'/ S((*&(a &ara ($)ur("(r &r$"&a*($+( %u&(r,"(%)( &(!a% )( a"(r' )( ba' "arb'$' a"(r'%

a(a)'% )( ba' "arb'$' 3($(ra*($+( )( 0/04 a0/25 C/


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E &r'"(%' )( "arbur!a"#$ &u()(r(%u*r%( ($ '% %3u($+(% &a%'%6

a7 Ca($+ar a &(!a 8a%+a a +(*&(ra+ura )(au%+($!a"#$ 9415-10:0 ;C7/

b7 S'*(+(r a &(!a a u$ *()' "arbura$+(9%#)' "(')( a &(!a "ua "'*&'%"#$ .u


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@( (%+a ='r*a %( 'b+($( ($ a &(!a u$3ra)($+( %u&(r,"a ($ a "'$"($+ra"#$ )("arb'$'

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Carbur!a"#$ Ga%('%a E$ (%+( &r'"(%' *a$+($($)' a% &(!a% )( 1 a 4

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&r'=u$))a)/ $"a*($+( ($ "a%'% (%&("a(%"'*' a =abr"a"#$ )( b$)a(% %( (*&(a$&r'"(%'% *D% ar3'% %( 'b+($($ "a&a%"(*($+a)a% )( *a'r (%&(%'r/ Au$.u( a%$%+aa"'$(% %'$ ba%+a$+( "'*&"a)a%

"'%+'%a% a "(*($+a"#$ )( a% &(!a% (% *u%($"a rD&)a/ S( 'b+($($ r(%u+a)'% *ur(3uar(% %( &u()($ "(*($+ar 3ra$)(%"a$+)a)(% )( &(!a% ($ *u &'"' +(*&'/


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S b($ (%+( *')' )( "arbur!a"#$ +')a?


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%+a (% a ra!#$ &'r a "ua %( (*&(a$a+*#%=(ra% "arbura$+(% "'$+r'a)a%/ S( &r')u"($*(!"a$)' u$ 3a% &'r+a)'r "'$ u$ 3a% r"' 93a%"arbura$+(7/ %+( >+*' %u(( %(r 3a% $a+ura

9*(+a$'7 &r'&a$' ' bu+a$'/

F$ +&' )( 3a% &'r+a)'r (% ( ($)'+r*"' .u( %(&r')u"( ($ u$ 3($(ra)'r $)(&($)($+(*(!"a$)' ($ "(r+a &r'&'r"#$ u$ 3a%8)r'"arbur' 93a% $a+ura &r'&a$' ' bu+a$'7 "'$ar(/ P'%+(r'r*($+( %( (=("+>a %u)(%"'*&'%"#$ a a+a +(*&(ra+ura 91000 ;C7 ($&r(%($"a )( u$ "a+a!a)'r ($ u$ 8'r$'


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Varab(% ($ ( &r'"(%' )("arbur!a"#$

La '&(ra"#$ (H+'%a ($ ( &r'"(%' )( "arbura"#$3a%('%a )(&($)( )( "'$+r' )( +r(% ?arab(%&r$"&a(%6 +(*&(ra+ura +(*&' "'*&'%"#$)( a a+*#%=(ra/ C'*' ?arab(% %("u$)ara% %(

&u()($ $'*brar ( "'$+($)' )( a(a$+(% )( a&(!a a "arburar ( 3ra)' )( "r"ua"#$ )( aa+*#%=(ra )( 8'r$'/


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TEMPERATFRA La ?('")a) *DH*a a a "ua ( "arb'$' &u()(

$3r(%ar a a"(r' (%+D *+a)a &'r a ?('")a) )()=u%#$ )( "arb'$' ($ au%+($+a/ E%+a ?('")a) )()=u%#$ %( $"r(*($+a &r'$u$"a)a*($+( a$"r(*($+ar a +(*&(ra+ura/ P'r ((*&' ( "arb'$' %($"'r&'ra ($ ( a"(r' u$ 0 *D% rD&)' a &a%ar )(40 ;C a :25 ;C/

F$a +(*&(ra+ura )( "arbur!a"#$ *u (*&(a)a (%:25;C &'r &(r*+r u$a ?('")a) )( "arbur!a"#$ra!'$ab(*($+( rD&)a %$ u$ )(+(r'r' (H"(%?' )($+(r'r )( 8'r$'/ E%+a +(*&(ra+ura &u()( %(r ((?a)aa :55 ;C :40 ;C a"'r+a$)' ( +(*&' )("arbur!a"#$ &ara &(!a% .u( r(.u(ra$ *a'r&r'=u$))a) )( "a&a/


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TIEMPO E (=("+' )( +(*&' )( a +(*&(ra+ura %'br( a

&r'=u$))a) )( "a&a %( *u(%+ra ($ a %3u($+(3ura/ S(3>$ %( 'b%(r?a ( +(*&' )("arbur!a"#$ )%*$u( % a +(*&(ra+ura

au*($+a/ E 3rD,"' =u( "a"ua)' %u&'$($)' au%+($+a

%a+ura)a ($ a %u&(r,"( )( a &(!a/ E$ "a%' )("'$+r'ar ( "'$+($)' )( "arb'$' %u&(r,"a .u( %+( %(a *($'r a )( %a+ura"#$ a

&r'=u$))a) )( "a&a %(rD *($'r .u( ( *'%+ra)'($ a 3ura /


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COMPOSICIN @E LAATMSERA E$ a )%"u%#$ )( (%+a %(""#$ %( a%u*rD .u( a

a+*#%=(ra "'$%%+( )( u$ 3a% ($)'+*"'9&r')u")' a &ar+r )( *(+a$'7 .u( (% ($r.u(")a&'r a a)"#$ )( *(+a$' .u($ (% ,$a*($+( a

=u($+( )( "arb'$'/


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Carbur!a"#$ S#)a E$ a "arbur!a"#$ %#)a ' "arbur!a"#$ ($

"aa% a &(!a a +ra+ar (% "a($+a)a ($ u$"'$+($()'r "(rra)' 9"aa7 ($ "'$+a"+' "'$ u$"'*&u(%+' )( "arbur!a"#$ %#)'

%+( (% ( *+')' *D% a$+3u' )( '% &r'"(%'% )("arbur!a"#$ =u( ( *D% (*&(a)' )ura$+(*u"8'% a'%/ S$ (*bar3' %u u%' 8a )%*$u)'%3$,"a+?a*($+( ($ '% >+*'% a'% )(b)' aa% *+a"'$(% $8(r($+(% )( &r'"(%' a a*('ra )( a% '+ra% +"$"a% )( "arbur!a"#$&r$"&a*($+( a "arbur!a"#$ 3a%('%a/


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La% &r$"&a(% ?($+aa% )( a"arbur!a"#$ %#)a %'$6 S( &u()($ (*&(ar u$a 3ra$ ?ar()a) )( 8'r$'% )a)' .u(

( &r'"(%' 3($(ra %u &r'&a a+*#%=(ra "'$+($)a ($ a "aa)( "arbur!a"#$/

I)(a &ara &(!a% .u( )(ba$ %(r *("a$!a)a% u(3' )( a

"arbur!a"#$ a$+(% )( +ra+a*($+' +r*"' ,$a )(b)' a.u( %( &u()($ '3rar baa% ?('")a)(% )( ($=ra*($+')(%)( a +(*&(ra+ura )( "arbur!a"#$/

Baa )%+'r%#$ )( a% &(!a% )ura$+( a "arbur!a"#$

)(b)' a .u( %( (*&(a ( "'*&u(%+' "arbur!a$+( &ara%'&'r+ar a% &ar+(%/

C'*&ara)' "'$ a "arbur!a"#$ 3a%('%a (%+a +"$"a&(r*+( *a'r(% '&"'$(% ($ "ua$+' a +"$"a% )("arbur!a"#$ %(("+?a/


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La% &r$"&a(% )(%?($+aa% )( a"arbur!a"#$ %#)a %'$6 N' (% a)("ua)' &ara &r')u"r "a&a% &'"' &r'=u$)a% )'$)( %(

r(.u(ra (%+r"+a% +'(ra$"a% ($ "ua$+' a a &r'=u$))a) )("a&a/ E%+' %( )(b( &r$"&a*($+( a a ?ara"#$ )(+(*&(ra+ura ($ ( $+(r'r )( a "aa/ P'r a *%*a ra!#$ $'+')a% a% &(!a% )($+r' )( a "aa +($)rD$ a *%*a &r'=u$))a))( "a&a/

C'*&ara)' "'$ a "arbur!a"#$ 3a%('%a a "arbur!a"#$%#)a $' &r'&'r"'$a a (Hb)a) $ a (Ha"++u) ($ "ua$+' a"'$+r' )( a% ?arab(% )( &r'"(%' &'r ($)( '% r(%u+a)'%,$a(%/

P'%(( ),"u+a) )( +(*&ar )r("+a*($+( a% &(!a% )(%)( a%"aa%/ R(.u(r( u$a '&(ra"#$ a)"'$a &ara &a%ar a &(!ar("$ "arbura)a a ba' )( +(*&( %($)' *&'%b( aau+'*a+!a"#$ )( &r'"(%' )( +(*&( a +rabaar "'$ 3ra$)(%%(r(%/


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R(.u(r( )( *a'r +(*&' )( &r'"(%a*($+'

)(b)' a "a($+a*($+' ($=ra*($+' )( a "aa )( "'*&u(%+' )( "(*($+a"#$/

Ma'r "'$%u*' )( "'*bu%+b((("+r")a)"'*' "'$%("u($"a )(


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C'*&u(%+'% )(Carbur!a"#$ L'% "'*&u(%+'% )( "arbur!a"#$ ' &'?'%

($)ur("()'r(% "'*(r"a(% *D% (*&(a)'% (%+D$='r*a)'% &'r "arb#$ ?(3(+a "'.u( )( &(+r#(' 'a.u+rD$ *(!"a)' "'$ 10 a 20 )( "arb'$a+'%

E$ "a%' )( (*&(ar%( %#' "arb#$ "'*' &'?'($)ur("()'r %( 'b+($)r


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Vara"'$(% ($ a Pr'=u$))a) )(Ca&a

A>$ "'$ u$ bu($ "'$+r' )( a% ?arab(% )(&r'"(%' (% )=


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Carbur!a"#$ L


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Ba' )( Sa(% "'$Ca$ur' E$ (%+( &r'"(%' %( $+r')u"( "arb'$' $+r#3($' a a"(r'/ La

)ur(!a %u&(r,"a a"a$!a)a &u()( "'$%)(rar%( "a%(H"u%?a*($+( a a a""#$ )( "arb'$'/ La $u($"a )(&(.u(' &'r"($+a3( )( $+r#3($' ($ a "a&a (% *($'r &u()( %(r "a% )(%&r("ab(/

La% %a(% (*&(a)a% &u()($ "a%,"ar%( ($ )'% 3ru&'% )(a"u(r)' a a &r'=u$))a) )( "a&a6


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Sa(% )( baa +(*&(ra+ura ' )(&($(+ra"#$ *()a/ S( "'$%3u($ "a&a% "(*($+a)a% )( 0/2 a 1/5**/ E$ 3($(ra

%( u%a$ ($ ( ra$3' )( 450 a :00;C/ E$ a3u$'% "a%'%(%&("


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Sa(% )( a+a +(*&(ra+ura ' )( 3ra$&($(+ra"#$/ S( "'$%3u($ "a&a% "(*($+a)a% )( 1 a Q**/ E$ 3($(ra %(

u%a$ ($ ( ra$3' )( 45 a :50;C/ E$ a3u$'% "a%'% %(&u()($ '3rar &r'=u$))a)(% )( 8a%+a **/ E u%' *D%*&'r+a$+( )( (%+a% %a(% (% &'r a rD&)a ='r*a"#$ )("a&a% )( 1 a 2**/ La "'*&'%"#$ )( (%+a% %a(% %( *u(%+ra

($ a Taba Q/ @( a +aba %( 'b%(r?a .u( (%+a% %a(% +($($*a'r "a$+)a) )( "'rur' bDr"' "'rur' &'+D%"' '+ra%%a(% a"a$a% "'*' u'rur'% ' "'rur'% )( bar' "a"' '(%+r'$"'/ E%+a% %a(% au*($+a$ $'+ab(*($+( a&($(+ra"#$ )( "arb'$' a"+ua$)' "'*' a3($+(% "a+a


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Ba' )( Sa(% %$ Ca$ur' E%+'% ba'% )( %a(% (%+D$ ='r*a)'% &'r &(.u(a% &ar+


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Ba' )( Sa(% %$ Ca$ur' La% +(*&(ra+ura% )( &r'"(%' ?ar


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CARBONITRFRACIN


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E% u$ &r'"(%' *'),"a)' )( "arbur!a"#$ *a% $' u$a ='r*a )($+rura"#$/

I$?'u"ra a )=u%#$ )( C N a a %u&(r,"( (H+(r'r )( a"(r'='r*a$)' u$a "a&a )ura &'r a a""#$ )( (%+'% )'% ((*($+'%/

S( &u()( r(a!ar ($ a a+*'%=(ra 3a%('%a )( u$ 8'r$' ' ($ u$ba' )( %a(% /

E%+( &r'"(%' %( ' r(a!a a *($'r(% +(*&(ra+ura% .u( a"arbur!a"'$ 3a%('%a ($+r( 5 :00C "'$+ra 40 105Cr(%&("+?a*($+( ($ u$ +(*&' *($'r/

S %( "'*b$a$ '% &arD*(+r'% a$+(r'r(% "'$ ( 8("8' )( .u( ($+r#3($' $8b( a )=u%#$ )( "arb'$' a "arb'$+rura"#$r(%u+a ($ "a&a% *a% )ura% &(r' *($'% &r'=u$)a% .u( a"arbur!a"'$ 3a%('%a/

F$a )( a% &r'&()a)(% )( (%+( &r'"(%' (% .u( r(%u+a u$a *a'rr(%%+($"a a aba$)a*($+' )(%3a%+( a a+a +(*&(ra+ura

"ua$)' %( +rabaa ($ "a($+(/


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Carb'$+rura"'$ 3a%('%a E (.u&' &ara (%+( &r'"(%' (%+a "'*&u(%+' &'r u$

8'r$' )( "D*ara r(+'r+a ' *ua/ S( $+r')u"( ( 3a%($)'+r*"' a*'$a"' .u( %'$ a% =u($+(% )("arb'$' $+r#3($' r(%&("+?a*($+(/

E(*&'% )( a"(r'% "'*>$*($+( "arb'$+rura)'% %'$)( a %(r( 1000 1200 1Q00 1500 000 100 005100 100 400 400 "'$ "'$+($)'% )( "arb'$' )(8a%+a 0/50/ S( '3ra$ &r'=u$))a)(% )( "a&a )(8a%+a 0/5** ($ ( ra$3' )( +(*&(ra+ura% )( 0 a40;C "'$ (%+' %( a"a$!a$ )ur(!a% %u&(r,"a(% )(

0 a 5 RC/


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E=("+' )( $+r#3($' ($ a"a&a )ura E $+r#3($' (% u$ (%+ab!a)'r )( Au%+($++a/ E%+' %3$,"a

.u( &u()( .u()ara au%+($+a r(+($)a u(3' )( +(*&(%($)' ($ a3u$a% '"a%'$(% u$ =a"+'r &r('"u&a$+( ($ '%a"(r'% "arb'$+rura)'%/ S( *a$,(%+a "'*' u$a )%*$u"#$($ a )ur(!a %u&(r,"a )( a "a&a )ura %(3>$ %( *u(%+ra ($

a 3ura ($ a3u$'% "a%'% (%+' (% $+'(rab(/ E$ (%+a% %+ua"'$(% %( )(b( baar ( &'r"($+a( )(

a*'$


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Izquierda: Capa superfcial de martensita producida luego del temple de un acero carbonitrurado a 850C.Derecha: Curvas de omin! de un acero al carbono de 0.08 "C cementado ! carbonitrurado a 8#5$ 8%5 !

&00C.


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Efecto de la temperatura y del tiempoe el e!pe!or de capa

La 3ura *u(%+ra ( (=("+' )( a +(*&(ra+ura )(+(*&' ($ ( (%&(%'r )( a "a&a "arb'$+rura)a/ S('b%(r?a .u( +a$+' a +(*&(ra+ura "'*' ( +(*&'$"r(*($+a$ a &r'=u$))a) )( a "a&a/ P'r '+r' a)'u$a *a'r +(*&(ra+ura r()u"( a =u($+( (=("+?a )($+r#3($' a+#*"' .u( &u()a $3r(%ar a a"(r'/

'(ecto de la temperatura ! del tiempo en el espesor de la capa carbonitrurada


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ec o e atemperatura de

re"eido Mu"8a% &(!a% "arb'$+rura)a% "'$ "a&a% &'"' &r'=u$)a% $'

r(.u(r($ )( u$ r(?($)' &'%+(r'r/ O+ra% ?("(% (% $("(%ar'r(?($r a &(!a a ,$ )( $"r(*($+ar a +($a")a) 9% +rabaa"'$ "ar3a% )( *&a"+'7 ' *$*!ar a a&ar"#$ )( *"r',%ura% %u&(r,"a(% 9($ "a%' )( *("a$!ar7/

La 3ura *u(%+ra "'*' )%*$u( a )ur(!a %u&(r,"a )(u$ a"(r' 1014 "'$ ( $"r(*($+' )( a +(*&(ra+ura )(r(?($)' &ara )=(r($+(% +(*&(ra+ura% )( "arb'$+rura"#$ &'r"($+a( )( a*'$


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In)uencia de la temperatura de revenido de la dureza superfcial de un acero*0*8 carbonitrurado a di(erentes temperaturas ! porcenta+es de amon,aco.


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In)uencia de la temperatura de revenido en la energ,a de impacto ! dureza de un acero*0-* carbonitrurado a 8-5C por / horas en una atms(era de %" 12/. 3emplado en aceite

desde la temperatura de carbonitruracin

C # i i$


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Car#oitruraci$L%&uida ' Ciauraci$ S( (*&(a &ara ($)ur("(r %u&(r,"a*($+( &(.u(a% &(!a%

)( a"(r'% )( ba' *()' "arb'$' "'$ ' %$ a(a"#$/ A 3ua .u( ($ a "arbur!a"#$


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E$ a "a$ura"#$ ( "'$+($)' )( $+r#3($' )( a "a&a (%*a'r .u( ($ a "arbur!a"#$


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La *(!"a 3ra)' Q0 (% u$a )( a% *D% (*&(a)a%/ La% %a(%)( "arb'$a+' "'rur' %#)"' %'$ $(r+(% ($ ( ba' %(a3r(3a$ &ara "'$+r'ar a +(*&(ra+ura )( =u%#$ )( a

*(!"a "'*' a%< +a*b$ *('rar a u)(! )( ba'=u$))'/ La "arbur!a"#$ )( a"(r' %( r(a!a &'r a a""#$ )( CO

.u( %( )(%&r($)( )( ba' 3($(ra*($+( ($+r( 0-:50C a $+rura"#$ &'r a a""#$ )( $+r#3($'/

E $+r#3($' ='r*arD $+rur'% .u()arD %u 3ra$ *a'r


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N+rura"#$ E% u$a +"$"a )( ($)ur("*($+' %u&(r,"a )(

a(a"'$(% =(rr'%a% ($ ( .u( %( "'$%3u($)ur(!a% (H+ra'r)$ara% ($ a &(r=(ra )( a%&(!a% &'r ab%'r"#$ )( $+r#3($' ($ u$a

a+*#%=(ra )( a*'$


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L'% &a%'% "'*&(+'% )( &r'"(%' )( $+rura"#$%u(($ %(r '% %3u($+(6

a7 M("a$!a)' )( a% barra% a*$a)a% ' &(!a% ($bru+' )( ='ra ' (%+a*&a)' )(a$)' u$ (H"(%' )( 2

** %'br( a% *())a% ,$a(%/b7 T(*&( r(?($)' a u$a +(*&(ra+ura +a .u( ($>"(' "'$%3a a )ur(!a ' r(%%+($"a )(%(a)a/"7 M("a$!a)' ,$a )( a% &(!a% )(D$)'a% "a%

(Ha"+a*($+( a a% *())a% ,$a(%/)7 E$ a3u$'% "a%'% %( %'*(+( a a% &(!a% a u$+ra+a*($+' a 500-00 ;C 9+(*&(ra+ura $=(r'r a a )(r(?($)'7 &ara (*$ar a% +($%'$(% )( *("a$!a)'/(7 Pr'+(""#$ )( a% %u&(r,"(% .u( $' %( .u(r(($)ur("(r )(%($3ra%a)'/=7 N+rura"#$/37 L3(r' r("+,"a)' ,$a 9'&"'$a7/


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V($+aa% )( a N+rura"#$1/ GRAN @FREZA/ Lu(3' )( a $+rura"#$ %( &u()($

"'$%(3ur )ur(!a% )( 8a%+a 1100 V"(r% *a'r a a%&'%b(% &'r "(*($+a"#$


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2/ GRAN RESISTENCIA A LA CORROSIN/ @(%&u% )(a $+rura"#$ '% a"(r'% +($($ *a'r r(%%+($"a a a"'rr'%#$ &'r a3ua )u"( a3ua %aa)a ?a&'r 'a+*#%=(ra% 8>*()a%/ E$ "a%' .u( $+(r(%( a *DH*a

r(%%+($"a a a "'rr'%#$ $' )(b($ r("+,"ar%( a%&(!a% )(%&u% )( $+ra+a)a%/Q/ AFSENCIA @E @EORMACIONES/ @(b)' a .u( $' (%$("(%ar' r(a!ar u$ ($=ra*($+' rD&)' )(%)( a+(*&(ra+ura )( $+rura"#$/ L%a$)r' (rr(r' 21


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/ AFSENCIA @E @EORMACIONES/ @(b)' a .u( $'(% $("(%ar' r(a!ar u$ ($=ra*($+' rD&)' )(%)(a +(*&(ra+ura )( $+rura"#$/ L%a$)r' (rr(r' 21

5/ RETENCIN @E @FREZA A ELEVA@ASTEMPERATFRAS/ La% "a&a% $+rura)a% "'$%(r?a$

3ra$ )ur(!a 8a%+a '% 500 ;C (%&("a1*($+("ua$)' a )ura"#$ )( "a($+a*($+' $' (% *u&r''$3a)a %(3>$ %( *u(%+ra ($ a 3ura 14/ E%a&r'&()a) (% $+(r(%a$+( &ara &(!a% )( *D.u$a%($ )'$)( &u()a '"urrr %'br("a($+a*($+'%

a"")($+a(% &'r ((*&' &'r =a+a )( ubr"a"#$/E$ "a%' )( +ra+ar%( u$ a"(r' "(*($+a)' u$$"r(*($+' )( +(*&(ra+ura )%*$ur


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T('r


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E$ (%( "a%' a &($(+ra"#$ )( $+r#3($' %(r


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b7 E% $("(%ara a &r(%($"a )( a(a$+(%='r*a)'r(% )( $+rur'% E$ u$ a"(r' a "arb'$''r)$ar' a )=u%#$ )( $+r#3($' 8a"a ( $+(r'r%( (=("+>a "'$ *D% =a")a) .u( ($ '% a"(r'%

a(a)'%/ S$ (*bar3' %( 'b+($)r


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C'*&'%"#$ )( '%a"(r'% )( $+rura"#$ L'% ((*($+'% )( a(a"#$ *D% "'*u$*($+(

u%a)'% ($ a &rD"+"a )( a $+rura"#$ )( '%a"(r'% %'$6 A Cr V M'/ T')'% ('% %'$='r*a)'r(% )( $+rur'% (%+ab(% a a +(*&(ra+ura

)( $+rura"#$/ E "arb'$' %( ($"u($+ra ($ (ra$3' )( 0/20 a 0/0/ Su =u$"#$ (% a )(&r'?((r a% "ara"+(r


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G($(ra*($+( %( *+a %u "'$+($)' a u$ *DH*')( 1/5 )(b( r a"'*&aa$)' )( '+r'%a(a$+(%/ S $' %( "u*&( a3u$a )( (%+a%"'$)"'$(% a "a&a $+rura)a r(%u+a$+( %(rD

)(*a%a)' =rD3/ E *'b)($' ='r*a $+rur'%(%+ab(% a a +(*&(ra+ura )( $+rura"#$au*($+a$)' a )ur(!a )( a "a&a (H+(r'r/A)(*D% *('ra a +($a")a) )( $>"(' (?+a a=ra3)a) .u( &r(%($+a '% a"(r'% %$ *'b)($'

a &(r*a$("(r *u"8' +(*&' a +(*&(ra+ura% )(ar()()'r )( 500 ;C/ E "r'*' ( ?a$a)'au*($+a$ a &r'=u$))a) )( "a&a ( $"r(*($+a$a $u($"a )( au*$' )( *'b)($'/ La

Taba *u(%+ra a "'*&'%"#$ .u


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NITROCAR(URACI)N


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La $+r'"arbura"#$ ' $+r'"arbura"#$ =(rr


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Microe!tructura de laCapa Nitrocar#urada- La "a&a ba$"a %u&(r,"a (%+D "'*&u(%+a &'r u$

"arb'$+rur' )( 8(rr' .u( %( ='r*a ($+r( :0 5:0C/

- E (%&(%'r )( a "a&a ba$"a (%+D ($+r( 10 0 *($ 3($(ra )(&($)( )( a +(*&(ra+ura"'*&'%"#$ )( 3a% ?('")a) )( u' )( 3a%/

- La "a&a ba$"a ($ a $+r'"arbura"#$ ($ 3($(ra (%"'$+


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Capa superfcial luego de unanitrocarburizacion errtica a 570C. El

nitrgeno es el elemento predominante


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NITROCAR(URACI)N L*+UI,A

La $+r'"arbura"#$


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El proce!o co!i!te de lo!!i-uiete! pa!o!:

a7 Pr("a($+a*($+' ($ ar( 8a%+a Q50;C/b7 N+r'"arbura"#$ ($ ba' )( %a(% a 50-540;C

&'r 1-2 8'ra%/"7 E$=ra*($+' $+(r*()' a 00;C/

)7 E$=ra*($+' a +(*&(ra+ura a*b($+(/(7 L*&(!a


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EH%+( u$a 3ra$ "a$+)a) )( &r'"(%'% )($+r'"arbura"#$


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N+r'"abura"#$ ($ ba' )( %a(% "'$ a+' "a$ur'/ N+r'"abura"#$ ($ ba' )( %a(% "'$ ba' "a$ur'/ N+r'"abura"#$ ($ ba' )( %a(% "'$ "a$ur'

"'*&u(%+'% )( a!u=r(6 La &r(%($"a )( a!u=r( *('ra ar(%%+($"a a )(%3a%+( )( a "a&a )ura/

N+r'"abura"#$ ($ ba' )( %a(% a baa +(*&(ra+ura940;C76 E%&("a*($+( &ara a"(r'% )( a+a a(a"#$/ S('b+($($ "a&a% )( *($'r (%&(%'r/

N+r'"abura"#$ ($ ba' )( %a(% a a+a +(*&(ra+ura/9540-Q0;C76 La &r$"&a )=(r($"a "'$ ( &r'"(%'a$+(r'r ($ u$ $"r(*($+' ($ ( (%&(%'r )( a "a&a )ura/

N+r'"abura"#$ ($ ba' )( %a(% "'$ &'% +ra+a*($+'6E$ (%+( "a%' a ,$a!ar a $+r'"arbura"#$ (%+D$)r %(

8a"( u$ r("+,"a)' )( a "a&a ba$"a %( ?u(?( a$+r')u"r a &(!a ($ ( ba' )( %a(% a 00;C &'r Q0*$u+'%/ E%+' *('ra $'+ab(*($+( a r(%%+($"a a a"'rr'%#$/

Lo! "eta.a! del


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Lo! "eta.a! delproce!o !o:S( 'b+($($ "'*&'$($+(% )( a+a "a)a)6

E(?a)a r(%%+($"a a a "'rr'%#$ r(&(++?)a) ($'% r(%u+a)'% u$='r*)a) ($ a "a&a/E &r'"(%'% %*&(6 P'"'% &arD*(+r'% a

*'$+'r(ar/A+a (Hb)a) ($ ( &r'"(%'6 S( &u()($ &r'"(%ar?ara% &(!a% )( )=(r($+(% +ra+a*($+'% a *%*'+(*&'/Baa )%+'r%#$/


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NITROCAR(URACI)N GASEOSA

A 3ua .u( a $+r'"arbura"#$


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Izq. Carga de cige!ales al "orno para nitrocarburacin. #er.$icroestructura de uno de los cige!ales nitrocarburados a

570C por % "oras.

Traramiento Termico Superficial

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