Electrozi si sarma pentru incarcari dure.pdf - imosdg.ro
Electrozi si sarma pentru incarcari dure.pdf - imosdg.ro
Electrozi si sarma pentru incarcari dure.pdf - imosdg.ro
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scule de<br />
prelucrare<br />
la rece<br />
metal-metal<br />
muchii <st<strong>ro</strong>ng>si</st<strong>ro</strong>ng><br />
suprafete<br />
ale sculelor<br />
de<br />
prelucrare<br />
la rece <st<strong>ro</strong>ng>si</st<strong>ro</strong>ng><br />
semicald<br />
1,8 x 6 = 10,8 2,5 x 350<br />
OK 85.65 EFe4 E4-UM-60-S 1,7 x 6 = 10,2 3,2 x 350<br />
3,8 x 3 = 11,4 4,0 x 350<br />
59 - 61<br />
HRC<br />
Structura : otel rapid<br />
Materialul de baza : otel rapid, otel carbon <st<strong>ro</strong>ng>si</st<strong>ro</strong>ng> aliat<br />
Rezistenta la abraziune <br />
Rezistenta la impact <br />
Rezistenta la pre<st<strong>ro</strong>ng>si</st<strong>ro</strong>ng>une <br />
Rezistenta la temperatura - 700 0 C<br />
Nr. de straturi necesar - 3<br />
Prelucrabilitatea - polizare<br />
TT - calire, calire + revenire (40-67 HRC)<br />
scule aschietoare din otel rapid, stante, matrite, burghie,<br />
dalti, freze, filiere, cutite de ghilotina, foarfeci de<br />
debavurare la cald<br />
abraziune<br />
impact<br />
co<strong>ro</strong>ziune<br />
strat de<br />
uzura<br />
ca<strong>ro</strong>iaj<br />
antiuzura<br />
OK 84.58 EZFe6 E6-UM-55-G 2,4 x 6 = 14,4 3,2 x 450<br />
53 - 59<br />
HRC<br />
Structura : marten<st<strong>ro</strong>ng>si</st<strong>ro</strong>ng>ta<br />
Materialul de baza : otel carbon <st<strong>ro</strong>ng>si</st<strong>ro</strong>ng> otel manganos<br />
Rezistenta la abraziune <br />
Rezistenta la impact <br />
Rezistenta la co<strong>ro</strong>ziune <br />
Nr. de straturi necesar - 1<br />
Prelucrabilitatea - polizare<br />
TT - calire + revenire (31-55 HRC)<br />
mori cu ciocane, conuri <st<strong>ro</strong>ng>si</st<strong>ro</strong>ng> valturi de concasor, cupe <st<strong>ro</strong>ng>si</st<strong>ro</strong>ng><br />
dinti de excavator, palete de amestecatoar, alimentatoare<br />
de beton, jgheaburi <st<strong>ro</strong>ng>si</st<strong>ro</strong>ng> lanturi de transportor, incinte de<br />
sablare, senile, unelte agricole <st<strong>ro</strong>ng>si</st<strong>ro</strong>ng> forestiere<br />
abraziune<br />
impact<br />
scule de<br />
prelucrare<br />
la rece<br />
strat de<br />
uzura<br />
refacerea<br />
formei<br />
muchii <st<strong>ro</strong>ng>si</st<strong>ro</strong>ng><br />
suprafete<br />
ale sculelor<br />
de<br />
prelucrare<br />
la rece<br />
4,5 x 4 = 18,0 3,2 x 350<br />
UTP DUR 600 E Fe6 E6-UM-60<br />
4,7 x 4 = 18,8 4,0 x 350<br />
56 - 58<br />
HRC<br />
Structura : marten<st<strong>ro</strong>ng>si</st<strong>ro</strong>ng>ta cu carburi de Cr<br />
Materialul de baza : otel carbon, otel manganos<br />
Rezistenta la abraziune (pamant, <strong>ro</strong>ca) <br />
Rezistenta la impact <br />
Rezistenta la compre<st<strong>ro</strong>ng>si</st<strong>ro</strong>ng>une <br />
Nr. de straturi necesar - 3 , max. - 6 (18 mm)<br />
Prelucrabilitatea - polizare<br />
TT - calire + revenire (25-60 HRC)<br />
dinti <st<strong>ro</strong>ng>si</st<strong>ro</strong>ng> muchii de cupa, senile de transportor, <strong>ro</strong>ti de<br />
senile, concasoare cu falci, conuri <st<strong>ro</strong>ng>si</st<strong>ro</strong>ng> valturi, ciocane de<br />
moara, <strong>ro</strong>le de presare, muchia sculelor de prelucrare la<br />
rece, ghilotine, cutite de strivit <st<strong>ro</strong>ng>si</st<strong>ro</strong>ng> macinat in industria<br />
zaharului, celulozei <st<strong>ro</strong>ng>si</st<strong>ro</strong>ng> hartiei.