The difference between VOD furnace and AOD furnace

What is an AOD furnace and what is a VOD furnace? What is the difference between the two?

The AOD furnace is a refined equipment for the refining method of the oxygen. The VOD furnace is an off -chromium stainless steel refining technology for blowing oxygen and decarburizing under vacuum conditions.

Different characteristics

1. Features of AOD furnaces: It has the advantages of simple equipment, convenient operation, strong adaptability, investment in provinces, low production costs, and is widely used.
2. VOD furnace characteristics: consisting of vacuum tanks, vacuum pumps, steel bags, oxygen guns, material supply systems, sampling, temperature measurement devices and terminal control instruments. Successive steam, water, oxygen, sources, high -quality refractory materials, suitable slag tools and high -efficiency steel baking devices are also necessary conditions for ensuring the normal production of VOD furnaces.

Different principles

1. Principle of AOD furnace: The transportation and adjustment of mixed gas during refining is one of the main systems of the oxygen furnace. The gas generated by the oxygen workshop enters the gas storage tank near the workshop through the pipeline. After measurement, decompression, adjustment, and mixing, the mixed gas is sent into the furnace through the flow and proportion of the process requirements.
2. Principle of VOD furnace: The VOD furnace can be dual -connected with the electric furnace, or the main feature of the refined process with the transition furnace is the product of the carbon -oxygen reaction as the CO gas, which can be removed during vacuum treatment, thereby promoting the decarbon decarburizer , A purpose of inhibiting chromium oxidation.

Extended information:
Precautions for the AOD furnace and VOD furnace:
1. Before the stove work, check it carefully to ensure that the equipment is in a good spare state, and the media parameters meet the requirements. AOD scum pits, no water and wet.
2. Before turning the bag and starting the steel water bag, you must check the damage of the neodolic equipment such as the wire rope and the chain, and the problem is replaced in time.
3. When operating the air -matching furnace, it is strictly forbidden to open the oxygen valve to confirm that there are no personnel on the flat car before it can be operated. At the same time, the angle and speed of the dumping furnace are observed. If there are abnormalities, it should be checked in time.

Keywords: AOD furnace, VOD furnace

Foshan Glimpse Engineering Technology Co., Ltd. (Glimpse Technology for short, its predecessor is Xi'an Weibao Metallurgical Equipment Technology Co., Ltd. established in 2014) is located in Foshan, the main distribution hub of stainless steel in China and Glimpse’s headquarter office is located in Foshan Greenland Financial Complex Building. Glimpse is a high-tech company with a team of top metallurgical experts in China, specializing in development, design, manufacture, installation and commissioning of complete sets of cold rolling equipment and strip processing equipment for stainless steel, carbon steel and non-ferrous metals. Glimpse has a professional team of 40 experts and technicians which including 2 well-known steel rolling expert professors (appointed consultants), 4 well-known foreign steel rolling experts (appointed consultants), 8 professor-level senior engineers, 10 senior engineers, and the rest are master degree holders or experienced technicians with medium-grade or above professional titles. Glimpse masters the core technologies of metallurgical fields: cold rolling, tandem cold rolling, annealing, pickling etc. Glimpse cooperates with world first-class professional companies, university research institutes (such as China North Heavy Industries Group, Sinosteel West Heavy, MCC Shaanxi) Press, China Second Heavy, Xi'an University of Technology, Yanshan University, Germany ABB, Germany Siemens, etc.) for long-term strategic cooperation.

Glimpse provides domestic and oversea steel plants with professional strip cold rolling, strip processing equipment and engineering services. 

Cold rolling equipment includes: provides 20-high reversible cold rolling mills, 18-high reversible cold rolling mills, four-high reversible cold rolling mills, six-high reversible cold rolling mills, carbon steel tandem rolling mills, and stainless steel tandem rolling mills for domestic and oversea steel plants.

Strip processing equipment includes: galvanzing and coating line, continuous annealing furnace, pickling line, tension leveller, 23-roll tension leveller, recoiler, skin pass mill, silicon steel processing line and other processing lines.

Engineering services includes: design, engineering, installation, commissioning and training for strip milling and processing equipment. Since its establishment, Glimpse has won royal customers at home and abroad through good performance and reputation in the industry. Customers spread in Guangdong, Guangxi, Shandong, Jiangsu, Zhejiang, Fujian, Shaanxi, Anhui, and other regions as well as India, Indonesia, Russia and other countries. Glimpse wholeheartedly provides customers with high-quality technology, equipment and engineering services, and cooperates with customers and partners to achieve a win-win situation.