SU587307A1 - Pusher-type electric furnace - Google Patents

Description

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The invention relates to heating furnaces and can be used in powder metallurgical and other areas of technology for heating and heat treatment in a vacuum or inert medium.

A known electric furnace containing a working chamber with jagrewegs, guides and tools for moving parts Ell ..

Also known is a plokat on an electric furnace containing a amphibious chamber with heaters, loading and reloading mechanisms, supporting guides on their fixed points {s dp of products 2) However, rapid wear of guides and containers and watered dust extraction in the right side of mixed containers is observed , made, as nsh1rav k1aie, of graphite.

The invention of the invention is the reduction of dust formation in the working chamber when containers are moved under vacuum processing conditions.

This is achieved by the fact that the support guides are installed at the entrance to the working chamber and at the exit from it, and the containers

extruded from the end of the micro-grooves, with STON, one of the grooves is made outside the container, and the other -... inside the interior with npntiroo-. On the right side, the outer grooves of adjacent containers are installed in their inner grooves.

FIG. 1 shows a diagram of the furnace; in fig. 2 - section A-A of FIG. one; in fig. 3 - container joints,

Eectectroche saves the working chamber 1

with heater 2 and lining 3. At inlet 4 to chamber 1 and outlet 5, support guides 6 are installed. The electric furnace is equipped with lock chambers 7 and 8 with ba1 {smart gates 9 and 1O. In the lock chambers 7 and 8, the loading mechanism 11 and the unloading mechanism 12 of the containers 13 with the parts to be machined are mounted 14. In the container 13, the outer and inner grooves 15 and 16 are made.

The furnace works as follows. When the vacuum valves 9 and Yu are closed, in the sluice cameo 7, the container 13 is placed on the loading mechanism 11, while its internal groove 16 is directed

3

b side of the outer groove 15 of the previous container 13. Then the chamber 7 is closed, an atmosphere is created in it, similar to the atmosphere of the working chamber. After opening the shutter 9, the mechanism 11 propels the container 13 onto the guide 6 installed at the inlet 4 into the chamber. At the same time, the grooves 15 and 16 of the adjacent containers 13 are connected and with further movement of the mechanism 11 all the containers 13 located in the working chamber 1 are mixed one step, and the last of them moves away from the guide 6 installed by the absenteeism 5 from the chamber 1. Next, the mechanism 11 pieses, closes the shutter 9 and opens the shutter 1O. The mechanism 12 removes the container 13, which has come down -C, guide 6, by separating the grooves 15 and 16 of the adjacent containers 13. After that, the shutter 10 is closed and the chamber 8 is opened to receive the container 13 from it by the processed parts 14, Next repeats.

The invention significantly reduces the surface of friction and, as a result, reduces dust formation and 3.5-2.0 times.

Claims (2)

1. Electrothermal equipment. Reference book. M, -: ergi, 1976, p. 362. 2.Makeev, V.S., et al. An electric furnace for sintering products from refractory compounds Poroshkova metallurgists, № 7, 1969, p. 108-110. 0 t UUUCHCHCH. ZTZZzZZZZ 13 G6 I I