Base roller transmission type continuous carbonizing heat treatment furnace
A heat treatment furnace and transmission technology, applied in heat treatment furnaces, heat treatment equipment, furnaces, etc., can solve problems such as different heat treatment processes, unqualified products, increase cleaning processes and cleaning equipment, etc., to save processes and equipment, and prolong service life , the effect of shortening the waiting time
Active Publication Date: 2008-03-05
东宇东庵(无锡)热处理有限公司
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Problems solved by technology
[0009] However, in order to meet the different process conditions of each chamber, the waiting time and advancing time of workpieces in each chamber are different, and deformation such as sinking of furnace bottom rollers will occur due to high temperature, and this deformation has nothing to do with the size of the bracket on which the workpiece is installed.
In addition, all furnace bottom rollers are always started at the same time for a certain period of time to move forward, thus causing many problems, such as controlling the heat-treated workpiece to stay in the heat treatment furnace but unable to control the moving speed of the workpiece in the furnace, so the actual needs cannot be obtained. performance, substandard products are produced in the workpiece
[0010] In addition, due to different workpieces and different heat treatment processes, different workpieces cannot be heat treated at the same time. We can only wait until the heat treatment of the previous batch of workpieces is completed, and then adjust the process before loading the next batch of workpieces.
This results in empty pallets being sent into the furnace, wasting time waiting for the last batch of heat-treated workpieces
[0011] In the heat treatment furnace of the prior art, the workpiece must be cleaned to remove oil stains before entering the preheating chamber, which increases the cleaning process and cleaning equipment, and the cost is high
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[0043] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0044] In the drawings, the same symbols are used for the same components as those of the prior art. The position of each heat-treated workpiece in each chamber, that is, the station, is represented by a square frame surrounded by lines in the figure.
[0045] As shown in Fig. 2 and Fig. 3, the preheating chamber 10 is formed between the entrance door 11 which isolates the interior of the entrance door 11 from the outside and the first partition door 15 which is separated from the heat treatment chamber 20 after the workpiece 100 is loaded. Sealed space. The refractory and heat insulating material inside the furnace is refractory bricks, and the workpiece 100 is transferred by the furnace bottom roller 60 and preheated. There is a station in the preheating chamber, and an independent motor 65 is installed. The motor drives a plurality of furnace bot...
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The industrial continuously carburizing heat treatment furnace with bottom driving rollers as metal heat treating equipment consists of one preheating chamber, one heat treating chamber, one first quenching chamber and one second quenching chamber. It has one gas burner inside the preheating chamber, motors mounted independently in different work sites for transferring workpiece, rollers connected with one chain and driven with one motor in the bottom of the furnace to transfer workpiece, and photoelectrical sensors in different work sites. It can control the workpiece shifting speed, atmospheres in different chambers, cycling time, temperature, etc. The present invention has shortened waiting time between altered technological processes, and can obtain high quality carburized product.
Description
technical field [0001] The invention relates to a metal heat treatment equipment, especially composed of a preheating room, a heat treatment room, a quenching room 1 and a quenching room 2, and each station in each room is equipped with an independent motor, and the motors are driven by chains. A group of multiple furnace bottom rollers rotates forward, or when the workpiece reaches the designated station, each group of furnace bottom rollers rotates 180° forward or backward at regular intervals, and each station is equipped with two cross photoelectric sensor. The running speed of the workpiece can be controlled according to the heat treatment process. At the same time, the atmosphere gas, cycle time and temperature of each chamber can be controlled separately. The fluctuation of the atmosphere gas in the furnace is the smallest, so that the carburizing state of the workpiece is average and the structure of the organization is uniform. Transmission type continuous carburizin...
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Login to View More IPC IPC(8): C23F17/00C21D9/00C23C8/20C21D1/18
Inventor崔中赫
Owner东宇东庵(无锡)热处理有限公司