Gas carbonitriding automatic control method and device
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An automatic control, carbonitriding technology, applied in coating, metal material coating process, solid-state diffusion coating, etc., can solve the problems of less nitriding time, less ammonia consumption, and lower energy consumption, and achieve Less nitriding time, high nitriding efficiency, and uniform nitriding layer
Active Publication Date: 2016-03-02
XINAN TOOLS GUIZHOU PROV
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[0005] The purpose of the present invention is to provide a simple structure, safe and reliable, energy-saving and high-efficiency, easy maintenance, no pollution, high product quality and performance, adopt PLC control system to quickly establish process parameters for the number of corresponding parts and materials, and control parts. A gas carbonitriding automatic control method and device with stable white layer and reticular layer depth, stable mass production uniformity of stainless steel, low ammonia gas consumption, low energy consumption, short nitriding time and high efficiency, to overcome the existing technology lack of
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[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but not as a limitation to the present invention.
[0028] Embodiment of the present invention: an automatic control device for gas carbonitriding, comprising a nitriding furnace 1, a PLC controller 2, a heating temperature control device 7, an ammonia gas drying device 24 and a touch screen 32, on the nitriding furnace 1 A pressure sensor 8, a hydrogen probe 3, a thermocouple 4 and an electric furnace wire 31 are provided, and a blade 5 is arranged on the top of the nitriding furnace 1, and the blade 5 is connected to a fan 6, and the heating temperature control device 7 is connected to the thermocouple 4 and the electric furnace Wire 31 is connected, the nitriding furnace 1 is connected with the vacuum pump 10 through the vacuum pipeline 11, the nitriding furnace 1 is connected with the exhaust device 9 through the exhaust pipeline 14, the fan ...
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Abstract
The invention discloses a gas carbonitriding automatic control method and device. The device comprises nine devices, namely, a nitriding furnace 1, a PLC, a pressure sensor, a hydrogen probe, a thermocouple, a blade, a fan, a heating and temperature control device and an air exhausting device. After being subjected to degreasing, cleaning and surface treatment, a part is subjected to closed loop feedback control of a vacuum pump, nitrogen, ammonia, ethyl alcohol, temperature and pressure in the furnace, so that the nitrocarburizing of various common nitriding steel such as high-speed steel and stainless steel is achieved. The device is energy-saving and efficient in use, easy to maintain and free of pollution, the product is high in quality performance, the PLC control system is adopted to quickly confirm and control the depth of the white etching layer and the reticular layer of the part to be stable according to the number of corresponding parts and the technological parameters of the material, the uniformity of stainless steel mass production is stable, the ammonia consumption is less, the energy consumption is low, the nitridation time is short, and the efficiency is high.
Description
technical field [0001] A gas carbonitriding automatic control method and device of the present invention belong to the technical field of gas carbonitriding. Background technique [0002] Nitrocarburizing is a chemical heat treatment process in which carbon is infiltrated mainly while nitriding is the main purpose. It is also called soft nitriding. The main purpose is to improve the wear resistance and seizure resistance of steel to meet the requirements of product quality. In the soft nitriding industry, enterprises are constantly pursuing production control methods and devices with better production processes, higher quality nitriding products and more complete automation to reduce labor costs, reduce human errors, increase process stability, and increase product quality. quality and increase production efficiency. [0003] The existing nitrocarburizing technology is mainly divided into liquid method and gas method, that is, salt bath nitrocarburization and gas nitrocarbu...
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