SU547242A1

SU547242A1 - Method of making metal tape

Info

Publication number: SU547242A1
Application number: SU2172889A
Authority: SU
Inventors: Николай Маркелович Кондратов; Юрий Николай Николаевич Кузнецов; Константин Гаврилович Марин
Original assignee: Предприятие П/Я Х-5476
Priority date: 1975-09-19
Filing date: 1975-09-19
Publication date: 1977-02-25

Description

1one

Изобретение относитс к металлургии, в частности к технологии получени тонколистового проката и касаетс обработки металлов давлением.The invention relates to metallurgy, in particular, to the technology for the production of sheet steel and relates to the processing of metals by pressure.

Известен способ изготовлени листа изgA known method of making a sheet of

сплава, включающий изготовление исходной заготовки непрерывным литьем и последующую гор чую прокатку заготовки, осуществл емую в несколько проходов со степенью обжати 49-51%, причем, по меньшей мере, |Q один проход провод т при степени обжати 85-95% и прокатку зачанчивают при температуре заготовки 230-270 С, а температура валков не контролируетс 1. Известный способ позвол ет получить лист толщиной 5alloy, including the manufacture of the original billet by continuous casting and subsequent hot rolling of the billet, carried out in several passes with a reduction rate of 49-51%, with at least | Q single-pass being carried out at a reduction rate of 85-95% and rolling at a workpiece temperature of 230-270 ° C, and the temperature of the rolls is not controlled 1. The known method allows to obtain a sheet with a thickness of 5

Ю мм из сплава на основе щшка. Основным недостатком известного способа вл етс необходимость проведени гор чей прокати с больщими степен ми обжати , что делает его неприемлемым дл сплавов, обладающих ну- 20 левыми характеристиками пластичности, в частности дл сплавов эвтектических составов, например, золото-олово. Зти сплавы обладают нулевой пластичностью и ударной в зкостью и их прин то считать неспособными 25U mm from the alloy on the basis of cheek The main disadvantage of this method is the need to carry out hot rolling with high degrees of reduction, which makes it unacceptable for alloys that have low plasticity characteristics, in particular for eutectic alloys, such as gold-tin. These alloys have zero ductility and toughness and are generally considered incapable of 25

подвергатьс обработке давлением , в том числе прокатке и штамповке.subjected to pressure treatment, including rolling and stamping.

Цель изобретени - получение тонкой пластичной ленты толщиной О,1-О,2 мм из эвтектического сплава золото-олово.The purpose of the invention is to obtain a thin plastic tape of thickness O, 1-O, 2 mm from a gold-tin eutectic alloy.

Это достигаетс тем, что заготовку изготовл ют непрерывны литьем при температуре сплава 305:325 С и температуре пресс-формы 285-305 С, а прокатку провод т при одинаковой температуре валков и заготовки 180-200°С со скоростью 5-8 м/мин со степенью обжати за один проход О,21 ,0%.This is achieved by the fact that the billet is manufactured by continuous casting at an alloy temperature of 305: 325 C and a mold temperature of 285-305 C, and rolling is carried out at the same temperature of the rolls and billet 180-200 ° C at a speed of 5-8 m / min. with the degree of compression in one pass O, 21, 0%.

Claims

Example. The eutectic gold-tin alloy in the form of ingots is loaded into the crucible of the casting mashina, melt sweat in it and heated to 310 C. Then it is included in the casting part of the machine and by cyclic pressing through a mold having a temperature of 300 ° C, a 24 x section is cast. 0.4 mm. After continuous casting, a billet with a length of about 1000 mm is cut off with a metal drummer. The resulting billet is heated to 190 and rolled between rollers heated to 190 C at a speed of 5 m / min and a reduction rate of 0.3% in one pass. The result is a tape thickness, 0.14 mm with an elongation of 5%. The invention The method of manufacturing a metal strip comprising the continuous casting of the billet and hot rolling it between the rolls, is characterized by the fact that, to obtain a plastic tape of thickness 0.10, 2 mm from gold eutectic alloy, the billet is produced by continuous casting at the temperature of alloy 305 -325Ci temperature of the mold is 285-305 C, and rolling is carried out at the same temperature of the rolls and the workpiece 180-200 C at a speed of 5-8 m / min and a reduction in one pass of 0.2-1.0%. Sources of information taken into account in the examination 1. French patent number 1597739, class B 21, 1970.