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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.

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