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{"title":"Plasma direct current electric arc furnace with World's leading technology","imgUrl":"https:\/\/img.chinax.com\/nimg\/d3\/8e\/e18d8b5e44d87fb8cae397619abb-200x200-1\/plasma_direct_current_electric_arc_furnace_with_world_27s_leading_technology.jpg","attrs":{"Brand Name":"Shaanxi Chengda","Certification":"ISO 9001","Place of Origin":"Negotiate based on equipment processing capacity","Minimum Order Quantity":"1 unit"}}
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{"title":"Direct Current Arc Furnace Direct Current DC Arc Furnace For Metal Melting","imgUrl":"https:\/\/img.chinax.com\/nimg\/65\/41\/f44bef2b447750f46e55742c700d-200x200-1\/direct_current_arc_furnace_direct_current_dc_arc_furnace_for_metal_melting.jpg","attrs":{"Brand Name":"Shaanxi Chengda","Model Number":"Negotiate based on equipment processing capacity","Certification":"ISO9001","Place of Origin":"Shaanxi, China"}}
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{"title":"Ladle Refining Furnace (New)","imgUrl":"https:\/\/img.chinax.com\/nimg\/23\/6f\/560061bdcfde837960e560f75f11-200x200-1\/ladle_refining_furnace_28new_29.jpg","attrs":{"Brand Name":"Shaanxi Chengda","Model Number":"Negotiate based on equipment processing capacity","Certification":"ISO9001","Place of Origin":"Shaanxi, China"}}
{"title":"Special Alloy Smelting Furnace with ISO 9001 Certification","imgUrl":"https:\/\/img.chinax.com\/nimg\/cd\/a2\/d50cf01eb3663830417fbdb8c146-200x200-1\/special_alloy_smelting_furnace_with_iso_9001_certification.jpg","attrs":{"Brand Name":"Shaanxi Chengda","Model Number":"Negotiate based on equipment processing capacity","Certification":"ISO9001","Place of Origin":"Shaanxi, China"}}
{"title":"Dc Steel-Making Electric Arc Furnace with 5t 10t 50t 100t","imgUrl":"https:\/\/img.chinax.com\/nimg\/8e\/b9\/b685fcdf4b43d49502bf7932703e-200x200-1\/dc_steel_making_electric_arc_furnace_with_5t_10t_50t_100t.jpg","attrs":{"Brand Name":"Shaanxi Chengda","Model Number":"Negotiate based on equipment processing capacity","Certification":"ISO9001","Place of Origin":"Shaanxi, China"}}
A plasma direct current electric arc furnace is a type of smelting equipment that uses a plasma arc as the heat source to melt and refine metals or alloys. Here is a detailed introduction:
Basic Introduction
Composition: It is mainly composed of three parts: the plasma gun, the furnace body, and the DC power supply. The plasma gun is composed of a water-cooled copper nozzle and a water-cooled cerium-tungsten rod electrode. The furnace body is similar to an ordinary electric arc furnace, including a water-cooled furnace cover, furnace walls and furnace bottom built with refractory materials, and is also equipped with a furnace door and a tapping groove. A conductive bottom anode is buried at the furnace bottom to form a conductive loop.
Working Principle: First, a DC voltage is applied between the cathode and the nozzle, and then argon is introduced. A high-frequency igniter is used to strike an arc, ionizing the argon to generate a non-transfer arc. Then, a DC voltage is applied between the cathode and the bottom anode of the furnace, and the plasma gun is lowered to make the non-transfer arc approach the charge, generating a transfer arc. Once the transfer arc is formed, the non-transfer arc is extinguished.
Characteristics
High Arc Temperature: The arc temperature can reach about 20,000 °C, which can melt refractory metals such as tungsten, molybdenum, niobium, zirconium, titanium and their alloys.
Controllable Atmosphere: By selecting different working gases such as argon and nitrogen, the furnace atmosphere can be controlled to achieve special metallurgical effects, such as smelting nitrogen-containing austenitic stainless steel.
Avoidance of Carbon Increase: The water-cooled metal plasma gun replaces the graphite electrode, avoiding the carbon increase of the molten steel by the electrode, which is suitable for the smelting of ultra-low carbon stainless steel.
Good Refining Effect: The inert gas in the furnace is similar to the vacuum melting effect, and the gas content in the molten steel is low. At the same time, high-basicity slag can be formed, and the desulfurization effect is good.
High Alloy Element Recovery Rate: The recovery rate of various alloy elements during the smelting process is significantly higher than that of ordinary electric arc furnaces, and the recovery rate of most elements is above 96%.
Technical Parameters of Plasma Direct Current Electric Arc Furnace
The technical parameters of plasma DC electric arc furnaces vary significantly based on capacity specifications (ranging from laboratory small-scale furnaces to industrial large-scale furnaces) and application scenarios (special steel smelting, refractory metal processing, metal recycling, etc.). Below is a categorized summary of core parameters for both common industrial models and laboratory models:
Special Steel Smelting: It is used to produce high-quality special steels such as bearing steel, ultra-low carbon stainless steel, heat-resistant steel, high-speed tool steel, precision alloy, superalloy and electric heating alloy.
Refractory Metal Melting: It can melt and refine refractory metals and their alloys.
Metal Recycling: It can be used to recycle metals from waste metals, slag, smelting waste residue and other materials to achieve resource recycling.
Shaanxi Chengda Industrial Furnace Manufacturing Co., Ltd. is a high-tech enterprise specialized in the research, design, and manufacturing of various industrial furnaces, including AC and DC steelmaking electric arc furnaces, ladle refining furnaces, ferroalloy ore thermal furnaces, ferroall... Shaanxi Chengda Industrial Furnace Manufacturing Co., Ltd. is a high-tech enterprise specialized in the research, design, and manufacturing of various industrial furnaces, including AC and DC steelmaking electric arc furnaces, ladle refining furnaces, ferroalloy ore thermal furnaces, ferroall...