FIELD: agriculture.
SUBSTANCE: invention can be used for agricultural machines tillage tools working surfaces strengthening, operating under abrasive wear conditions. Protective coating is applied on ploughshare surface in several continuously repeating cycles by spark alloying of ploughshare surface and subsequent protective cusps arc surfacing. In each cycle electric-spark alloying is carried out by oscillating electrode, made of abrasion-resistant material, by doping current pulses with energy of 1.5–10.0 J for 5–60 s to produce protective coating with thickness of up to 0.5 mm. Then current supply to said spark alloying electrode is disconnected and it is supplied with constant welding current of positive polarity with value of 80–450 A for 20–120 c for overlay welding by electrode material of protective cusp with height of 0.8–1.5 mm.
EFFECT: method ensures production of wear-resistant coating with high strength of its adhesion with ploughshare parent metal and ploughshare ability to self-sharpening.
3 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DIP-TRANSFER SURFACING | 2015 |
|
RU2614353C2 |
| COMBINED METHOD OF HARDENING OF METAL SURFACES OF PARTS OF MACHINES OPERATING IN CONDITIONS OF ABRASIVE WEAR | 2019 |
|
RU2718017C1 |
| REINFORCING RECOVERY OF PLOUGHSHARE | 2013 |
|
RU2549788C1 |
| WEAR-RESISTANT PLOUGHSHARE | 2019 |
|
RU2695867C1 |
| STAMP-WELDED PLOUGHSHARE WITH INCREASED RESISTANCE TO ABRASIVE WEAR | 2015 |
|
RU2601211C2 |
| PLOUGH SHARE | 2012 |
|
RU2494588C1 |
| PLOWSHARES OF MEAN- AND HIGH-CARBON STEELS STRENGTHENING METHOD | 2004 |
|
RU2274526C2 |
| SURFACE-HARDENING OF PARTS OPERATED AT ABRASIVE WEAR | 2013 |
|
RU2532602C2 |
| METHOD TO RECOVER AND STRENGTHEN PLOUGHSHARES BY ELIMINATING RADIAL WEAR VIA TWO-LAYER BUILDING-UP | 2008 |
|
RU2370351C1 |
| METHOD OF RECONSTRUCTING OF BITS OF DEEP LOOSENING WITH SIMULTANEOUS STRENGTHENING OF THEIR WORKING SURFACE | 2017 |
|
RU2680332C2 |
