| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention may be used for manual welding of low-alloy pearlite steels, particularly, those of grades "10ô2£ñÉ", "15Ñ2£ñÉ", "15Ñ2£ñÉÉ", "15ÑX3£É", and "15Ñ3ñÉÉ", operated at temperatures of up to 350C. Electrode comprises low-alloy steel coated rod. Coat comprises the following components in wt %: marble - 35-40, blue john - 12-17, rutile concentrate - 10-16, titanium dioxide - 3-5, ferrosilicon - 4-7, ferrotitanium - 5-7, manganese - 3-7, graphite - 0.1-0.3, hematite - 1.0-3.0, mica - 1.0-3.0, plasticiser - 1.0-3.0, iron powder making the rest. Relation between graphite content and total content of hematite and mica makes 0.02-0.10. Electrode rod may be made from, for example, "-10ô1£É"-grade wire. Electrode rod coat plasticiser may contain, for example, potash. ^ EFFECT: higher strength and elasticity at up to 350C. ^ 3 cl, 2 tbl |
