eur op eanexhibitionofcreati vityandinnovation - Europe Direct Iasi
eur op eanexhibitionofcreati vityandinnovation - Europe Direct Iasi
eur op eanexhibitionofcreati vityandinnovation - Europe Direct Iasi
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EUROINVENT 2013<br />
16.3.<br />
ELECTRODE WITH CORE FROM ALLOY 83%<br />
Title EN<br />
FE/17%CR<br />
Lect. Dr. Eng. Radu ŞTEFĂNOIU, Prof. Dr. Eng. Victor<br />
GEANTĂ, Dr. Eng. Horia BINCHICIU, Prof. Dr. Eng.<br />
Authors<br />
Ionelia VOICULESCU, Dr. Eng. Aurelia BINCHICIU, Eng.<br />
Emilia BINCHICIU<br />
Institution SC SUDOTIM AS SRL Timişoara<br />
Patent no. RO 125834/30.01.2013<br />
This invention refers to a basic layer type fluoro – calcium with<br />
35% adding of metallic powders, destined to covering by extrusion<br />
of some metallic bars realized from alloys 83%Fe and 17%Cr,<br />
resulting thus electrodes with increased deposition efficiency that<br />
can be used for manual electric welding. The weld deposit obtained<br />
is an alloy type with 71%Fe, 25%Cr, 2,5%C, 1%Mo, 0,5%V and<br />
micro-alloyed with lanthanides with austenitic microstructure, with<br />
high resistance at abrasion combined with corrosion at high<br />
temperatures, and associated hardness in the domain of 45 – 60<br />
HRC. The coating of electrode, according to the invention, consists<br />
Description<br />
in powder mixture of 30 – 33% marble, 20 – 22% fluorine, 6 – 8%<br />
EN<br />
rutile, 0.5 – 1.5% cat silver, 2 – 4%FeSi 45, 1 – 2%FeMn45, 14 –<br />
18%FeCr60, 8 – 12% metallic Cr, 5 – 7% colloidal graphite, 1 –<br />
2% lanthanide, 1 – 2% carboximetilcelulose, having maximum<br />
granulation of 0.3 mm, being initially mixed in dry state, and then<br />
mixed in wet state, with adding an amount of liquid sodium silicate<br />
of 18 – 20% from the total powder mass.<br />
APPLICABILITY DOMAIN: Deposition by manual electric<br />
welding of some layers with high resistance at abrasion combined<br />
with corrosion at high temperatures, and associated hardness in the<br />
domain of 45 – 60 HRC.<br />
6. Mechanical Engineering - Metallurgy<br />
Class no.<br />
7. Buildings and Materials<br />
NATIONAL<br />
130