Normalizing furnace conveying chain
A conveyor chain, normalizing furnace technology, applied in furnaces, heat treatment furnaces, furnace types, etc., can solve problems such as unfavorable removal of workpiece stress, inconsistent grains, deformation of workpieces, etc., to avoid long-term contact, good heat dissipation, and stress removal Effect
Active Publication Date: 2017-10-13
重庆骏诚机械有限公司
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Problems solved by technology
Conveyor chains are usually composed of carbon steel wires woven into mesh belts, with fine structure and poor air permeability. In addition, carbon steel has poor thermal conductivity, so the heat dissipation effect at the point where the workpiece and the conveyor chain are in fixed contact for a long time is not as good as that of the workpiece. The place in contact with the air is good, so the grains formed by normalizing the workpiece are inconsistent, and it is easy to cause slight deformation of the workpiece, which is not conducive to removing the stress in the workpiece
Method used
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[0016] Example A normalizing furnace conveyor chain is basically as attached figure 1 And figure 2 Shown: It includes two guide rails parallel to each other. A first screw 2 and a second screw 3 are arranged on the guide rails. The first screw 2 and the second screw 3 have the same pitch and outer diameter. The first screw 2 and the second screw The two screws 3 are parallel to each other. The first screw 2 and the second screw 3 rotate in opposite directions. Both ends of the first screw 2 and the second screw 3 are respectively connected to two guide rails, the first screw 2 and the second screw 3 are connected with a rotating motor 14; the two guide rails are the first guide rail 1 and the second guide rail 6, the first guide rail 1 is hollow, the first guide rail 1 is provided with a joint 7, and the joint 7 communicates with the first guide rail 1. It also includes a pure copper pipe 8 and an air pump. One end of the pure copper pipe 8 is closed at the other end, and the ...
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The invention relates to the field of general heat treatment equipment and discloses a normalizing furnace conveying chain. The normalizing furnace conveying chain comprises two parallel guide rails. First threaded rods and second threaded rods are alternately arranged on the guide rails at intervals. The thread pitch of the first threaded rods and the thread pitch of the second threaded rods are the same, and the outer diameter of the first threaded rods and the outer diameter of the second threaded rods are the same. The first threaded rods are parallel to the second threaded rods. The turning direction of the first threaded rods is opposite to that of the second threaded rods. The two ends of the first threaded rods and the two ends of the second threaded rods are rotationally connected to the two guide rails correspondingly. Rotation motors are connected with the first threaded rods and the second threaded rods correspondingly. The first guide rail is hollow. A metal tube is mounted on the second guide rail. Third threaded rods and fourth threaded rods are further arranged at the two ends of the first threaded rods correspondingly. According to the normalizing furnace conveying chain provided by the invention, workpieces are prevented from being statically placed on the conveyed chain during workpiece conveying.
Description
Technical field [0001] The invention relates to the field of general equipment for heat treatment. Background technique [0002] Normalizing, also known as normalization, is to heat the workpiece to Ac3 (Ac refers to the critical temperature at which all free ferrite is transformed into austenite during heating, generally from 727°C to 912°C) or Acm (Acm is In actual heating, the critical temperature line for complete austenitization of hypereutectoid steel) is 30~50℃ above. After holding for a period of time, the metal heat treatment process is taken out of the furnace and cooled by water spraying, spraying or blowing. Its purpose is to refine the grains and homogenize the carbide distribution to increase the hardness, improve the processing performance, remove the internal stress of the material, stabilize the size of the workpiece, and prevent deformation and cracking. [0003] When a normalizing furnace is used for normalizing heat treatment of a workpiece, a conveyor chain is...
Claims
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IPC IPC(8): C21D9/00
CPCC21D9/0018
Inventor 娄方银
Owner 重庆骏诚机械有限公司