Online heating device for rolling workpiece surface

A workpiece surface and workpiece technology, applied in the field of online heating devices, can solve the problems of complex equipment, uneven heating, unsafe, etc., and achieve the effect of safe operation and strong adaptability

A workpiece surface and workpiece technology, applied in the field of online heating devices, can solve the problems of complex equipment, uneven heating, unsafe, etc., and achieve the effect of safe operation and strong adaptability

CN110715294AActive Publication Date: 2020-01-21BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Online heating device for rolling workpiece surface
  • Online heating device for rolling workpiece surface
  • Online heating device for rolling workpiece surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Such as Figure 1-5 As shown, the surface rolling online heating device is composed of a combustion heater and a gas flow control system. The combustion heater includes a heater moving end 1, a heater fixed end 2, a flame combustion chamber 3, an ignition and temperature measuring device 4; the gas flow The control system includes gas tank 10, screw valve one 11, screw valve two 12, air pressure gauge one 13, pressure reducing valve 14, air pressure gauge two 15, safety valve one 16, screw valve three 17, solenoid valve 18, blower 19. Pressure gauge three 20, safety valve two 21, screw valve four 22, Venturi mixer 23. After the heating command is turned on, the moving end 1 of the heater and the fixed end 2 of the heater are in a closed state, and the gas flows out from the gas tank 10, and then passes through the first screw valve 11, the second screw valve 12, the first air pressure gauge 13, and the pressure reducing valve 14 , air pressure gauge two 15, safety valv...

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Abstract

The invention relates to a heating device, in particular to an online heating device for rolling a workpiece surface. The online heating device comprises a combustion heater and a gas circulating control system. Online heating can be performed on a workpiece clamped on a lathe. In the heating process, the heater is in a closed state, the workpiece does rotating movements, and the heating uniformity is ensured. After a preset temperature is reached through heating, the movable end of the heater is opened, a rolling tool rolls the circumferential surface of the workpiece, and the fixed end of the heater continues to perform heating and heat preserving on the workpiece in the rolling process. In the heating process, an igniting and temperature measuring device monitors the heating temperatureof the workpiece in real time and feeds back a temperature signal to the control system, and the control system adjusts the gas flow and controls the heating rate. The online heating device can be used for online heating assisted lathing, online heating assisted grinding and other experimental research or production application.

Description

technical field [0001] The invention relates to a heating device, in particular to an online heating device for rolling the surface of a workpiece. Background technique [0002] Key structural components in the fields of vehicles, ships, and aviation are often subjected to cyclic loads during service, which makes them prone to fatigue fractures and catastrophic accidents. Therefore, the surface strengthening technology for the purpose of improving the fatigue resistance of parts has been widely studied and applied. [0003] Rolling is a surface strengthening technology that applies a certain static pressure to the surface of the workpiece through rolling tools to cause plastic deformation of the surface material, reduce surface roughness, form residual compressive stress and hardened layer, and change the microstructure of the surface. The wear resistance and anti-fatigue properties of the parts after rolling are effectively improved, and are currently widely used in the su...

Claims

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Application Information

Patent Timeline
21 Jan 2020
Publication
CN110715294A
IPC
F23D14/14; F23D14/46; B23P9/02
CPC
B23P9/02; F23D14/145; F23D14/46; F23D2203/104
Inventors
梁志强; 栾晓圣