| 摘要 |
FIELD: processes for surfacing by means of lying electrode, possibly manufacture of crowns of teeth of digging machines working in condition of intensified wear. ^ SUBSTANCE: method comprises steps of placing electrodes with gap on part to be surfaced; using flux and additive powder material; exciting electric arc between electrode and surfaced surface; performing multi-layer surfacing alternatively on upper and lower sides of crown; using steel substrate whose width is equal to distance between lateral faces of crown and whose length is equal approximately to difference of length values of new and worn crowns along axis of lateral side; arranging steel substrate in direction of plane crossing axes of lateral faces of crown and welding it to crown along contour of wear; fixing crown with welded substrate in such a way that at first its upper side is arranged horizontally, then its lower side is arranged horizontally; placing electrodes across lengthwise axis of crown at first on substrate and then on surfaced zones until their complete restoration. ^ EFFECT: enhanced quality of restored surface, lowered cost and simplified technique of process. ^ 3 cl, 5 dwg, 1 ex |
