SU846584A1 - Automatic line for complex thermal treatment - Google Patents

Description

heaters. The movement of the pallets with parts is carried out by means of a movement mechanism (ejector 13, pusher 14, etc.). Heating furnaces and cooling chambers are sealed. Into the high tempering chamber 4 and in the heating preheating furnace 7, an atmosphere supply for gas / nitriding of parts during heating is considered. The last preheating furnace, which serves simultaneously as a heating chamber for quenching, has a window with a flap 15 for unloading parts for the press 16 and a unloading platform 17 with a quenching tank 18. Behind the transfer tank 19, a pallet delivery mechanism 20 and a pallet transfer mechanism 21 are installed. The pallet transfer mechanism is followed by a washing machine 22 and a low-release chamber 23. The line ends the mechanism 24 downloads. All devices of the automated line are connected by transport mechanisms, have a control system and the necessary electromechanical and power equipment.

The principle of operation of the automated line is as follows.

The parts subjected to heat treatment are laid on the pallet 25 and, with the aid of the loading mechanism 24, are fed to the loading vestige 1. From the vestibule 1, the pallet enters the ca- measure 2 of cementation. After an appropriate residence time of the parts in the grouting chamber, the pallet is transferred by mechanisms to the cooling booth 3, where it is cooled to a certain temperature. Then, the pallet with the details is transported to the high leave chamber 4 using transport devices. Having passed the high tempering chamber, the pallet enters the transfer vestibule 5, from where it immediately goes to the first preheating furnace 7, since the high tempering of parts is carried out at 600-650 ° C, i.e. at temperatures for most steels, at ZOR-ZO C below Aj. In the preheating furnace the parts are heated to a temperature 30-50 ° C above Ag, and then cooled 30-50 ° C below Aj in the cooling chamber, the first thermal cycle is carried out. Passing pallets with parts through cooling.

The chambers and furnaces for heating the thermal cycling device are carried out by appropriate mechanisms (ejectors, pushers, etc.).

After thermal cycling, the pallet with the parts enters the unloading tamg.

drill 17 and quenching tank 18 or remain in the furnace for hardening under a press. From the quench tank, the pallet enters the transfer tank 19, from where

assistance mechanisms 20 and 21 comes

into the washing machine 22. After washing, the pallet passes tempering in the chamber 23 and enters the loading mechanism 24, where the finished parts are unloaded and new ones are installed. The heat treatment cycle is repeated.

Formula

the invention

1. Automated line for complex heat treatment,. containing a transfer tube, a grouting chamber, a cooling chamber, a high-start chamber, a quenching tank, a washing machine, a low-flow chamber, which are successively interconnected and interconnected by moving mechanisms, so that, in order to improve the quality of heat treatment, equipped with a HEAT between the high-tempering chamber and the quenching tank with a thermal cycling device made in the form of successive cooling chambers and preheating furnaces.

2. The lines according to Claim 1, about the fact that it is equipped with a quenching press associated with the last preheating furnace.

Sources of information taken into account in the examination

1. State and prospects of development of heat treatment of gears in

tractor and agricultural machinery engineering. Ser. Technologists and automation of production processes in tractor and agricultural machine building. M.,

TSNIITEEItractorselkhozmash, 1977, p.

28-29, fig. 12.

2.ABtopcKoe certificate of the USSR 327257, cl. From 21 0-9 / 00, 1972.

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Claims (2)

Claim 1. Automated line for complex heat treatment,. It contains a loading platform, a cementation chamber, a cooling platform, a high tempering chamber, a quenching tank, a washer, a low tempering chamber, which is arranged in series and interconnected with each other by movement mechanisms, and it is provided with an arrangement between the high tempering chamber and the quenching tank, a thermal cycling device made in the form of sequentially located cooling chambers and heating furnaces. 2. The line according to claim 1, with a join and the fact that it is equipped with a quenching press associated with 40 icy heated stove.