uzura masinilor si utilajelor (1) proiectul bun

8/15/2019 Uzura Masinilor Si Utilajelor (1) PROIECTUL BUN

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CUPRINS

ARGUMENT.......................................................................................................3

CAPITOLUL 1. UZAREA MAŞINILOR UTILAJELOR ŞI INSTALAŢIILOR 4

1.1. CLASIFICAREA UZURILOR ..............................................................................................1.2. ETAPELE UZĂRII..........................................................................................................1.2.1. PERIOADA RODAJULUI..............................................................................................1.2.2. PERIOADA FUNCŢIONĂRII NORMALE........................................................................1.2.3. PERIOADA UZURII DE AVARIE...................................................................................1.3. METODE DE CONTROL A UZURII..................................................................................1.3.1. METODE DISCONTINUE DE MĂSURARE A UZURII......................................................

1.3.2. METODE CONTINUE DE MĂSURARE A UZURII...........................................................1.4. METODE DE AMELIORARE...........................................................................................

1.4.1. METODE DE AMELIORARE PRIN ÎNLĂTURAREA/ADĂUGAREA DE METALE DEPE/PE SUPRAFEŢELE UZATE............................................................................................................

1.4.2. METODE DE AMELIORARE PRIN FOLOSIREA UNOR PIESE INTERMEDIAREINTRODUSE ÎNTRE PIESELE UZATE..................................................................................................

1.4.3. METODE DE AMELIORARE PRIN METALIZARE SAU CROMARE..................................1.4.4. METODE DE AMELIORARE PRIN TRATAMENTE TERMICE SAU TERMOCHIMICE.........

CAPITOLUL 2. ORGANIZAREA REPARARII MASINILOR UTILAJELOR SI

INSTALATIILOR.........................................................................................................28

2.1 NECESITATEA REPARARII MASINILOR , UTILAJELOR SI INSTALATIILOR ..........................2.2 SISTEME DE REPARATIE................................................................................................2.3 TIPURI DE REPARATII....................................................................................................2.4 PLANIFICAREA REPARATIILOR ......................................................................................2. NORMATIVELE DE REPARATII........................................................................................2.! CICLUL DE REPARATII...................................................................................................2." METODE DE REPARATII.................................................................................................2.# ORGANIZAREA REPARARII MASINILOR , UTILAJELOR SI INSTALATIILOR ........................

CAPITOLUL 3. PRINCIPALELE NORME DE PROTECŢIE A MUNCII LALUCRĂRILE DE ÎNTREŢINERE, REPARAŢII ŞI MONTAJ...............................36

3.1. LUCRĂRI DE AJUSTAJ, LĂCĂTU$ERIE, MONTAJ............................................................3.2. DEMONTĂRI, MONTĂRI, REPARAŢII.............................................................................3.3. R ODAREA $I ÎNCERCAREA MOTOARELOR ....................................................................

BIBLIOGRAIE...............................................................................................38

2


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ARGUMENT

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CAPITOLUL 1. UZAREA MAŞINILOR UTILAJELOR ŞI

INSTALAŢIILOR

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UZAREA DE ADEZIUNE DE CONTACT-

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Figura 1.2 Diagrama uzurii

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Figura 1.3

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Fig. 1.4 !aria"ia uzurii

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Fiabilitatea -+*%** 6(8*%6( % -+'( -0' 6( -56 6( (785+&+'( + +(0&(*+, 6(-(&56(( * 8('*56**&+&(+ 9('*'+6 % RC*B 8'595+&( 6( 6(+%( 5%0&+&+&( 5+=*+ (7(&'** %&'()*%('*5' * '(9*=**5' &(%*(.

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D( +0(-(%(+, 8(%&' -+*%*( 5-8(7( + +'( +8+' 6(


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Fig. 1.- $chema m%&ur%rii amprentei

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Fig. 1. parat de metalizare cu C+F, tip !C')& ) ' mecanism de a"ans( * ' s-rmă'electrod( ' con de ghidare( / ' inductor( 0 ' cuzinet( 1 ' zona de 2ncălzire maximă a s-rmei'electrod( 3 ' racord pentru aer sub presiune( 4 ' camera pentru pul"erizarea aerului( 5 'conul interior al cuzinetului

!etalizarea oxiacetilenică 0(


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Fig. 1.1 n&tala"ie de cromare5

) ' tra"erse pentru legături electrice( * ' tablou( suporţii anodului( / ' suporţiicatodului( 0 ' anozi( 1 suporţi izolatori( 3 5 ' 2ntreruptor 4 ' termometru( siguranţe( )9 niăaspiratoare( )) ' picioare izolatoare(

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Clasificarea tratamentelor termiceC+0*+%(5' 6( -+0*%* + '(=&+&( (5%5-*( *-85'&+%&(@-*05'(+=+ 58'*'*(%(8'56&*9(,-+'(0 8('*5+6+ 6*%&'( '(8+'+&** 0* '(6( (&*(*( 8(%&' (


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A6(0(5'*,6*0&'>('(+ 08'+5*'**, +'+&('*0&*+ +%>'(%+(5', -(&+ 0( 6*0&'>( 6+&5'*&+ =+'** 0*5;50(** 0&'+&* 08('('( 8( 08'+


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P'*% '(9*=*( &(%*+ 0( *%&((> 58('+&** ( 0( (7(&+ *% 058 6(&('-*%+'** 0&+'** &(%*(+ -+0*%**,&*+* 0+ *%0&++&*(* 0* + 8'*%*8+(5' 58('+&** ( '-(+=+ + 0( ('+ *% 5%&*%+'( '+-+ (&.B.L'+'*( 6( '(8+'+&** '(8'(=*%&+ +%0+-; 6( -+0'* +&( 8(%&' '(5%6*&*5%+'(+ 0+

*%5*'(+ 8*(0(5' 5-85%(%&( =+&( +( -+0*%*5',&*+(5' 0* *%0&++&*5' *% 9(6('(+-(%&*%('** +'+&('*0&**5' 5'** 6( *%&('9(%&**@ '(8+'+&*+ '(%&+ 0* '(8+'+&*+ +8*&++.

R(8+'+&*+ '(%&+ R 8'*%6( '+'*( ( 0( (7(&+ 8('*56*,*% -56 8+%*'+6 1 R B

? '(8+'+&** '(%&( 6( >'+6 2R .L+ '(8+'+&**( '(%&( 6( >'+6 1 0( (7(&+ '-+&5+'(( 58('+&**@ '(8+'+&*+

+8+'+&5'*5',08++'(+ 8*(0(5' 8'59(%*&( 6( + -(+%*0-(( 6(-5'+&( 0* '(-(6*('(+ 6(+ (*8+-(%&* ((&'*.

L+ '(8+'+&**( '(%&( 6( >'+6 2 95- '+'*5' (0&( -+* -+'(,(7(&+%6?0( *%++'(* 0+ +'-(%&*5','(8+'+'(+ 0+ *%5*'(+ +8+'+&+* 6( 85'%*'(@ '(>+'(+ 0*0&(-* 6( 5-+%6+((&'*+ 0+ *6'+*, 9('*


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%(5'(08%=+&5+'('(8+'+&**( %((7(&+&( + &*-8'(8+'+&**( (7(&+&(%(5'(08%=+&5'(785+&+'(+ %(>*(%&+.

2.4 PLANIICAREA REPARATIILOR

R(8+'+&**( 0( 8+%*'8(,&*856*-(%0*%*,8'(- 0* *% '8(* 0* + &*8* 6( +&*'(+ '(8+'+&*(* 6( +'( 6*08%( %*&+&(+ 6(&*%+&5+'(,85& 9+'*+6( + 5 '(8+'+&*( + +&+ 0* 6( + 5 *%&'(8'*%6('( + +&+.

2


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2.6 CICLUL DE REPARATII

C* 6( '(8+'+&** '(8'(=*%&+ 8('*5+6+ 6( &*-8,*% 5'( '+&(,*%&'( 65+ '(8+'+&** +8*&+(0+,8(%&' -+0*%+,&*+ 0+ *%0&++&*+ %5+ 6( + 6+'(+ 5' *% (785+&+'(,8+%+ + 8'*-+

'(8+'+&*( +8*&++.D'+&+ ** 6( '(8+'+&** (0&( 0&+;**&+ 8(%&' '+6 2,!?12'(8+'+&** '(%&( 6( >'+6 1 0* 2"?"2 '(9*=** &(%*(,*% '(959(' 56*'+6 2R + 1 6( 5'( 6(0('9**

I%&'( 65+ '(8+'+&** '(%&( 6( >'+6 2 0( ('+6 1,R

B+ 2 6( 5'( 6( 0('9** 0* 8+&' '(9*=** &(%*( R B+ 12 6( 5'( 6( 0('9** 68+'+6 1.

3


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2.= METODE DE REPARATII

P(%&' +%*=+&+ 6(8+0+'(+ (*8(5' '(8+'+&5+'( *-8'(%+ 0(( %((0+'( + 5 6(+-8+0+'( + 5'.

A9+%&+(( +(0&(* -(&56( 5%0&+ *% +((+ + 08'*-+ (&*(*( 0* *%&('9+(( 6( &*-85%0-+&( &'+%085'& &*+(5' 6( + 5 6( 8'56&*( 8+%+ + +&(*(' 6( '(8+'+&**.

E0&( %((0+' *%0+ + + +8*+'(+ +(0&(* -(&56( 0+ 0( 5'>+%*=(=( +0&'8+ 6( 58('+&** %(* (*8( 08(*+*=+&(.

O8('+&**( 6(0*( ;*%( *%&5-*&+ 8(%&' + 0( (9*&+ 08'+8%('*( 6*%&'(

58('+&**? -(&56+ '* *% 0*-;'* 5%&*%( (0&( -(&56+ *% 65+ 0+ &'(*

0*-;'*,+'( 0( +8*+ 5'* 6( +&( 5'* &'(;*( + '(8+'+&*+ -+0*%**,&*+* 0+ *%0&++&*(* 0+0( '(+*=(=( *%&'?% &('-(%


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2.8 ORGANIZAREA REPARARII MASINILOR, UTILAJELOR SI

INSTALATIILOR

D8+ -+'*-(+ *%&'(8'*%6('**,5'>+%*=+'(+ (7(&+'** '(8+'+&**5' 0( 85+&( '+6 1 0* 2.

I% *%60&'*+ 5%0&'&5+'( 6( -+0*%*,'(8+'+&**( 0(


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Q Z*%* ,%+*%&( 6( %(8('(+ '* -+*0&' 0+ (&*& +08'+ 58('+)**5' ( * 0( %'(6*%)(+=

Q U%(&(( &**=+&( 6( (*8( 6( '(8+'+)** - * 6*085=*&*9(( 6( '*6*+&9*%*'*,-++'+( (&.B&'(;*( 0 '( %8('* +6(9+&( % +'( ;+%'*( 6( 8'5;( 95' '+& (7+0&5+'( 0'+ 5 '&(%*(8('+&5'* + 8-:%& ,8(%&' + (9*&+ 8('*5 6( ((&'5&+'(

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Î% +


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BIBLIOGRAIE

1. ,avele&cu $imona67&ain ngela

Sisteme mecanice, pneumatice i hidraulice aleșautomobilului, :;. ,ece6 ec. .

D%&c%le&cu

>hid pri"ind autoe"aluarea ni"elului de securitate pentru2ntreprinderile mici i mijlocii. E+;5'+& 6( I%0&*&&

N+)*5%+ 6( C('(&+'( W D(=95&+'( 8(%&' P'5&()*+M%** W INCDPMB, 22

. ??? ?oti e de curs, clasa a +

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