Thermal simulation furnace with heating/cooling controllable structure and capable of sampling halfway

Abstract

The invention relates to a thermal simulation furnace with heating / cooling controllable structure and capable of sampling halfway, comprising a furnace shell, a furnace lining arranged in the furnace shell, a soaking screen arranged at the inner cavity of the furnace lining, a radial sampling device arranged at the opening on the top of the soaking screen, a heating element, a thermocouple, a cooling pipe, and a control device, wherein a plurality of soaking screen cooling paths distributed uniformly are arranged on the outer wall of the soaking screen to form the soaking screen with a cooling structure. The furnace provided by the invention comprises a furnace plug with a crossing sampling structure and the soaking screen with hollow flanges and the cooling paths, and is characterized in that the furnace can be used with a computer for numerical simulation production, the heating efficiency can be accurately controlled, the cooling efficiency can be accurately controlled, the adjusting range of the cooling speed is large, the furnace can be used in each period for sampling for test, the amount of sample is large, the temperature field in the furnace is not influenced, the uniformity of temperature in the furnace is good, and the surface of the workpiece and the internal temperature can be monitored when the temperature is raising and lowering.

Description

technical field [0001] The invention relates to a thermal simulation furnace, in particular to a thermal simulation furnace with a controllable heating / cooling structure and sampling midway; it belongs to the technical field of heat treatment of metal materials. Background technique [0002] The ultra-supercritical steam turbine rotor of one million kilowatts and the large nuclear power forging are the key components in the energy power and nuclear power manufacturing equipment, and they are still in the trial production stage in China. China is vigorously developing nuclear power, and the importance of heat treatment technology for large forgings for nuclear power is self-evident. Researched and developed the heat treatment simulation equipment for ultra-supercritical steam turbine rotors and nuclear power large forgings with international advanced level, realized the online and offline control and digital simulation of heat treatment of ultra-large parts, and accurately co...

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Problems solved by technology

[0008] The purpose of the present invention is to solve the problem that existing heat treatment furnaces in the prior art are difficult to meet the requirements of temperature uniformity, accuracy, and process adjustment flexibility, and samples cannot be taken out during the process, so that the simulated data is far from meeting the requirements of the process. The shortcomings of the test requirements provide a thermal simulation furnace with a controllable heating / cooling structure and midway sampling. The thermal simulation furnace can be equipped with a computer for numerical simulation production, and the heating rate can be accurately controlled. The speed adjustment range is large, and samples can be taken for testing at various stages. The large sample size does not affect the temperature field in the furnace, the temperature uniformity in the furnace is good, and the surface and internal temperature of the workpiece can be monitored during heating and cooling.

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