SU728982A1

SU728982A1 - Ingot mould for ingots

Info

Publication number: SU728982A1
Application number: SU772503231A
Authority: SU
Inventors: Василий Федорович Мазов; Василий Иванович Деревянко; Николай Иванович Беда; Генрих Майорович Кацнельсон; Владимир Михайлович Кокин
Original assignee: Днепропетровский Ордена Ленина Металлургический Завод Им.Петровского
Priority date: 1977-06-28
Filing date: 1977-06-28
Publication date: 1980-04-25

Description

(54) ИЗЛОЖНИЦА ДЛЯ СЛИТКОВ(54) ITEM FOR INGOTS

1one

Изобретение относитс к черной металлургии , в частности, к разливке стали в изложницы .This invention relates to ferrous metallurgy, in particular, to casting steel into molds.

Известна изложница, состо ща из цельнометаллической нижней глуходонной части, ушир ющейс кверху, и верхней прибыльной надставки , ушир ющейс книзу, к плоскости разъема. Прибыльна надставка за исклйчением нижней поддерживающей полки имеет теплоизол ционную футеровку по всей высоте на внутренней рабочей поверхности изложницы 1A mold is known, consisting of an all-metal lower gluchodon part, broadening upwards, and an upper profitable extension, broadening downwards, to the plane of the connector. A profitable extension, with the exception of the lower support shelf, has a thermal insulating lining along its entire height on the inner working surface of the mold 1

Недостатком такой изложницы вл етс невозможность стрипперовани слитков, прибьшьна часть которых имеет высоту менее 200 мм.The disadvantage of such a mold is the impossibility of stripping ingots, most of which have a height of less than 200 mm.

Цель изобретени - уменьшение отходов в технологическую обрезь на первом переделе, обеспечение надежности захвата слитков, отлитых с короткой прибыльной частью.The purpose of the invention is to reduce waste in the technological scrap at the first redistribution, ensuring the reliability of the seizure of ingots cast with a short profitable part.

Это достигаетс тем, что футеровка размещена от верхнего торца прибыльной надставки на 0,3-0,8 ее высоты.This is achieved by the fact that the lining is placed from the upper end of the profitable extension 0.3-0.8 of its height.

Во избежание зависани слитка при кристаллизации и образовани дефектов поверхностиTo avoid the ingot freeze during crystallization and the formation of surface defects

при его прокатке на обжимном стане по углу внутренней поверхности надставки в плоскости разъема выполн ютс по всему периметру скруглени радиусом, равным 3-8% от толщины слитка в плоскости разъема.when it is rolled on a blooming mill along the corner of the inner surface of the extension in the plane of the connector, they are performed along the entire perimeter of rounding with a radius equal to 3-8% of the thickness of the ingot in the plane of the connector.

На чертеже изображена предлагаема изложница .The drawing shows the proposed mold.

Изложница включает корпус 1, прибыльную надставку 2, теплоизолирующую фугеровку 3, ограничители 4, обеспечивающие совмещение . прибыльной надставки и корпуса из;1ожницы. Снаружи прибыльна надставка 2, как и в известных устройствах, снабжена ограничител ми 4, обеспечивающими минимальное смещение вертикальной оси надставки относительно оси нижней части изложницы.The template includes a housing 1, a profitable extension 2, a heat insulating fugier 3, limiters 4, providing a combination. profitable extension and body from; 1 scissors. Outside, the profitable extension 2, as in the known devices, is provided with limiters 4, which ensure the minimum displacement of the vertical axis of the extension relative to the axis of the lower part of the mold.

Claims

The dead-casting mold and the profitable extension have, in relation to each other, reverse taper with decreasing cross-sectional dimensions to both the upper and lower base of the composite mold. The lower all-metal part of the extension, which is a continuation of the mold, is intended for the crystallization of the body of ingots of all types of steel differing in ste- ages. pitons of raskislen (boiling, semi-calm, calm). If it is necessary to produce an ingot of quiet steel with side warming, the height of the metal in the mold increases, ensuring the contact of liquid steel with lining 3. Ingots can be cast with a relatively small height of the profitable part, which is very important when using effective insulation materials that provide. satisfactory macrostructure at the level of 5-10% head trim. The ingots with a shortened profitable part are normally removed from the mold, the garden is kept in the wells, which maintains the temperature of the metal land, reduces the overheating and consumption of the molds. The effectiveness of the application of the molds of the proposed design consists in saving the metal over 10 thousand tons and other materials, which is only for the plant. Petrovsky savings more than 800 thousand rubles. The invention The mold for dL, containing | a deaf body with broadening upwards and a profitable extension, broad downwards, thermal insulating lining on the working surface, which is | that, in order to reduce metal waste in technological cuts, improve the conditions of a heavy algae ingot and increase the durability of the mold, heat insulating lining; from the upper end of the near extension n 0.30, 8 of its height .; Sources of information | taken into account in examinations 1, Efimov V. A. Steel ingot. Mj. Metallurgizdat, 1961, p. 341