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WT-H220U
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TUU 28.7-31749248-004-2003 EN 14700/ T Fe9 DIN 8555/ MF 7-GF-200-KP (suspended)
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| Welding process: О – open arc |
Wire diameter, mm | Recommended shielding gases and fluxes |
| О | 1,6-3,0 | - |
| The Formation of the weld bead | good |
| Separation of Slag | good |
| Deposition Rate, kg/h | 5-12 |
| Addiction Weld metal Cracking | moderate |
| Consumption per 1 kg of wire Weld metal, kg | 1.1-1.15 |
| Weld metal Hardness (HRC for 3rd-4th layer, unless otherwise stated) | after surfacing HB 200-HB 240 after work hardening 40-45 |
| C | Mn | Si | Ti | S | P |
| 0.3 | 20.0 | 0.1 | 0.2 | 0.014 | 0.018 |
| Brand of the wire | Distance, % | virobnik | C | Mn | Si | Cr | Ni | Mo |
| HARDFACE NM14 (2) | 6.06 | Welding Alloys | 1 | 14 | 0.5 | |||
| HARDFACE AP (1) | 16.23 | Welding Alloys | 0.35 | 14 | 0.7 | 15 | 1.4 | |
| HARDFACE P (8) | 18.26 | Welding Alloys | 0.2 | 2 | 0.8 | 3 | ||
| ROBOFIL R 690+ (67) | 18.29 | Welding Alloys | 0.05 | 1.85 | 0.3 | 2.2 | 0.35 | |
| ROBOFIL R 690 (66) | 18.34 | Welding Alloys | 0.05 | 1.8 | 0.3 | 2.2 | 0.15 |
| Wire diameter, mm | Current, A | Voltage, V | Surfacing rate, m/h |
| 2,0 | 160 - 300 | 25 - 28 | 12 - 18 |
| 2,4 | 200 - 360 | 26 - 30 | 15 - 20 |
| 2,8 | 240 - 400 | 27 - 31 | 18 - 23 |
| 3,0 | 260 - 440 | 27 - 32 | 20 - 25 |
| Wire diameter, mm | Cardboard barrel | Molded skeins of frameless type | Frame drum (B) | Coil (S), (BS) | |||
| Hank in the corrugation box | Metallic barrel | ||||||
| To 100 kg | To 150 kg | To 300 kg | To 30 kg | To 70 kg | To 25 kg | To 15 kg | |
| 1.6 | X | X | X | X | X | X | X |
| 2.0 | X | X | X | X | X | X | X |
| 2.4 | X | X | X | X | X | X | X |
| 2.8 | X | X | X | X | X | X | |
| 3.0 | X | X | X | X | X | X | |
The close cooperation with leading research centers, including those in the field of welding and a high professionalism of engineering and technical staff and workers allowed mastering a stable classical technology of production of welding and surfacing flux-cored wires and wires for electric arc spraying to perfection.
Poor weldability of steel 110G13L, caused by a growth in heat input, is outlined. Electrodes, developed at different periods of time for welding Hadfield steel and its dissimilar joints, are described. Characteristic of flux-cored wires WELTECH-H220u and WELTECH-210u, developed by TM. WELTECH for the repair of 110G13L steel castings and welding of dissimilar joints of this steel with steel 20GSL, is given.
The paper gives information on flux-cored wires produced by TM.VELTEK, Ltd. and experience of their application in renovation of the parts and mechanisms in metallurgical and mining industries.
