SU292506A1

SU292506A1 - Method of cooling parts at thermal treatment

Info

Publication number: SU292506A1
Application number: SU691354195A
Authority: SU
Inventors: Е.Н. Дружинина; В.Н. Волынский; А.Б. Степаненко; В.М. Дитц; В.П. Волков; И.М. Рыбкин
Priority date: 1969-08-04
Filing date: 1969-08-04
Publication date: 1980-12-30

Description

Изобретение относится к области термической обработки деталей.The invention relates to the field of heat treatment of parts.

Известен способ охлаждения деталей, осуществляемый непосредственно , в муфеле нагревательной печи, напри- ^эмер,, продувкой газом.Known is a method of cooling components implemented directly in muffle heating furnace For instance ,, ^e measures purge gas.

В отличие от известного по предложенному способу охлаждение производят заполнением охлаждающей жидкостью,« муфеля, который предварительно вакуумируют .In contrast to the known method according to the proposed method, cooling is performed by filling with a cooling liquid, a “muffle that is previously evacuated.

Это ускоряет процесс охлаждения, предотвращает окисление деталей воздушной средой. 15This speeds up the cooling process, prevents the oxidation of parts by air. fifteen

Нагрев деталей производят в муфельной печи в любой атмосфере до требуемых температур. После необходимой выдержки печь герметизируют и атмосферу печи откачивают форва- ^0 куумным насосом до разрежения «КГ* мм рт.ст.The parts are heated in a muffle furnace in any atmosphere to the required temperatures. After the necessary exposure, the furnace is sealed and the atmosphere of the furnace is pumped out with a forvum pump to a vacuum of “KG * mm Hg.

Муфель с деталями заливают охлаждающей жидкостью, например водой, в количестве, необходимом для охлажде ния садки. Затем печь открывают и разгружают.The muffle with parts is poured with coolant, for example water, in the amount necessary to cool the charge. Then the furnace is opened and unloaded.

Нагрев и охлаждение деталей можно производить в емкости, вставляемой внутрь муфеля, так как муфель печи весьма массиве^, и процесс его изготовления трудоемок.Heating and cooling of parts can be done in a container inserted inside the muffle, since the furnace muffle is very massive, and the process of its manufacture is laborious.

Описываемый способ применим к любым видам термической и химико-термической обработки, проводимой в муфельных печах с любыми рабочими атмосферами, в том числе в вакуумных печах.The described method is applicable to any type of thermal and chemical-thermal treatment carried out in muffle furnaces with any working atmosphere, including in vacuum furnaces.

Claims

The invention relates to the field of heat treatment of parts. A known method of cooling the parts is carried out directly in the muffle of the heating furnace, for example, by blowing gas. In contrast to the method known from the proposed method, cooling is performed by filling the muffle with a cooling liquid, which is previously evacuated. This speeds up the cooling process, prevents oxidation of parts by air. The parts are heated in a muffle furnace in any atmosphere to the required temperatures. After the required exposure, the furnace is sealed and the atmosphere is pumped out with a fore vacuum pump to a vacuum of 9–10 mm Hg. The muffle with the parts is poured with a coolant, for example water, in an amount necessary for cooling. Then the furnace is opened and unloaded. Heating and cooling of parts can be carried out in a container inserted inside the muffle, since the muffle of the furnace is quite massive, and the process of its manufacture is laborious. The described method is applicable to any type of heat and chemical-heat treatment carried out in muffle furnaces with any working atmosphere, including vacuum furnaces. The invention The method of cooling parts during thermal processing, carried out directly in the muffle of a heating furnace, is distinguished by the fact that, in order to intensify the process, cooling is performed by filling the muffle with a cooling liquid, which is previously evacuated.