FIELD: machine building.;SUBSTANCE: proposed can be used in mechanised and automatic underwater welding and building up of metal parts. Flux cored wire for mechanised welding consists of steel shell and charge containing rutile concentrate, iron powder, nickel, alkali metal carbonate, alkaline metal complex fluoride, and additionally contains a core in form of ferromanganese, ferrosilicon, ferrotitanium and aluminium in following proportions, wt%: rutile concentrate 25-37; calcium fluoride 8-17; iron powder 32-45; nickel 1-3; alkali metal carbonate 3-7; alkaline metal complex fluoride 3-13; ferromanganese 4-6; ferrosilicon 2-4; ferrotitanium 1-3; aluminium 1-2.;EFFECT: proposed powder wire allows to improve quality of weld joint and increases impact strength of welds at underwater welding due to active metallurgic reactions on deoxidising welding bath.;3 cl, 2 tbl, 1 ex
展开▼
机译：领域：机械制造。;实体：拟用于机械化和自动水下焊接以及金属零件的组装。用于机械化焊接的药芯焊丝由钢壳和包含金红石精矿，铁粉，镍，碱金属碳酸盐，碱金属复合氟化物的装料组成，另外还包含以下比例的锰铁，硅铁，钛铁和铝形式的芯％：金红石精矿25-37;氟化钙8-17;铁粉32-45;镍1-3;碱金属碳酸盐3-7;碱金属氟化物3-13;锰铁4-6;硅铁2-4;钛铁1-3;铝1-2 .;效果：所建议的粉末焊丝可提高焊接接头的质量，并由于在脱氧熔池上发生的活性冶金反应而提高了水下焊接时焊缝的冲击强度。; 3 cl，2 tbl，1 ex
展开▼
