Knowledge What is the Arc Melting Method? 5 Key Points Explained
Author avatar

Tech Team · Kintek Solution

Updated 2 months ago

What is the Arc Melting Method? 5 Key Points Explained

The arc melting method is an electrothermal metallurgical process that utilizes electric energy to generate an electric arc between electrodes or between an electrode and the material to be melted.

This method is characterized by its ability to achieve extremely high temperatures, typically up to 3000℃, which is sufficient to melt a variety of metals, including reactive and refractory ones.

1. Principle and Operation

What is the Arc Melting Method? 5 Key Points Explained

The arc melting process begins with the conversion of a high voltage into a low voltage but high current by a transformer, typically using 220V or 380V input.

The instantaneous short circuit of the positive and negative poles triggers the arc, which is a self-sustaining discharge phenomenon that maintains stable combustion without the need for continuous high voltage.

This arc, with temperatures reaching nearly 5000K, is used to melt the metal electrode or material.

2. Types of Arc Melting

2.1 Vacuum Arc Remelting (VAR)

This method is conducted under slag-free and vacuum conditions.

The metal electrode is rapidly melted by the DC arc and then re-solidified in a water-cooled copper mold.

This process refines the metal, purifying it and improving its crystal structure and performance.

2.2 Plasma Arc Melting

This technique uses electrically excited gas, such as helium or argon, to melt metals in a sealed chamber under an inert atmosphere.

It is particularly effective for reactive and refractory metals and offers significant improvements in the properties of conventional alloys.

2.3 Non-self-consuming Vacuum Arc Melting

This method uses a water-cooled copper electrode instead of a consumable one, which helps in industrial pollution control.

It is widely used for melting titanium and titanium alloys, eliminating the need for pressing and welding electrodes.

3. Applications and Advantages

Arc melting is used in various metallurgical processes, including hearth melting, scrap consolidation, and the production of ingots, slabs, and powders.

The advantages of arc melting include the ability to melt high melting point metals, the production of clean, as-cast metal by removing inclusions, and the potential for recycling materials.

Additionally, the non-self-consuming method allows for longer arc dwell times on the material, leading to better homogenization of the ingot composition and the use of raw materials of different sizes and shapes.

Continue exploring, consult our experts

Discover the power of precision and purity with KINTEK SOLUTION’s advanced arc melting systems. Our cutting-edge technology, designed for unparalleled performance, delivers the highest standards of metal refinement for a wide range of industries. Embrace the future of metallurgy with KINTEK SOLUTION – where innovation meets reliability. Elevate your metal melting operations today!

Related Products

Vacuum arc furnace Induction melting furnace

Vacuum arc furnace Induction melting furnace

Discover the power of Vacuum Arc Furnace for melting active & refractory metals. High-speed, remarkable degassing effect, and free of contamination. Learn more now!

Vacuum Induction Melting Spinning System Arc Melting Furnace

Vacuum Induction Melting Spinning System Arc Melting Furnace

Develop metastable materials with ease using our Vacuum Melt Spinning System. Ideal for research and experimental work with amorphous and microcrystalline materials. Order now for effective results.

Non consumable vacuum arc furnace Induction melting furnace

Non consumable vacuum arc furnace Induction melting furnace

Explore the benefits of Non-Consumable Vacuum Arc Furnace with high melting point electrodes. Small, easy to operate & eco-friendly. Ideal for laboratory research on refractory metals & carbides.

Vacuum levitation Induction melting furnace

Vacuum levitation Induction melting furnace

Experience precise melting with our Vacuum Levitation Melting Furnace. Ideal for high melting point metals or alloys, with advanced technology for effective smelting. Order now for high-quality results.

Vacuum induction melting furnace Arc Melting Furnace

Vacuum induction melting furnace Arc Melting Furnace

Get precise alloy composition with our Vacuum Induction Melting Furnace. Ideal for aerospace, nuclear energy, and electronic industries. Order now for effective smelting and casting of metals and alloys.

Bell-jar Resonator MPCVD Diamond Machine for lab and diamond growth

Bell-jar Resonator MPCVD Diamond Machine for lab and diamond growth

Get high-quality diamond films with our Bell-jar Resonator MPCVD machine designed for lab and diamond growth. Discover how Microwave Plasma Chemical Vapor Deposition works for growing diamonds using carbon gas and plasma.

Electron Beam Evaporation Graphite Crucible

Electron Beam Evaporation Graphite Crucible

A technology mainly used in the field of power electronics. It is a graphite film made of carbon source material by material deposition using electron beam technology.

Cylindrical Resonator MPCVD Diamond Machine for lab diamond growth

Cylindrical Resonator MPCVD Diamond Machine for lab diamond growth

Learn about Cylindrical Resonator MPCVD Machine, the microwave plasma chemical vapor deposition method used for growing diamond gemstones and films in the jewelry and semi-conductor industries. Discover its cost-effective advantages over traditional HPHT methods.

Drawing die nano-diamond coating HFCVD Equipment

Drawing die nano-diamond coating HFCVD Equipment

The nano-diamond composite coating drawing die uses cemented carbide (WC-Co) as the substrate, and uses the chemical vapor phase method ( CVD method for short ) to coat the conventional diamond and nano-diamond composite coating on the surface of the inner hole of the mold.

Ultra-high temperature graphitization furnace

Ultra-high temperature graphitization furnace

The ultra-high temperature graphitization furnace utilizes medium frequency induction heating in a vacuum or inert gas environment. The induction coil generates an alternating magnetic field, inducing eddy currents in the graphite crucible, which heats up and radiates heat to the workpiece, bringing it to the desired temperature. This furnace is primarily used for graphitization and sintering of carbon materials, carbon fiber materials, and other composite materials.

Vacuum brazing furnace

Vacuum brazing furnace

A vacuum brazing furnace is a type of industrial furnace used for brazing, a metalworking process that joins two pieces of metal using a filler metal that melts at a lower temperature than the base metals. Vacuum brazing furnaces are typically used for high-quality applications where a strong, clean joint is required.

Continuous working electric heating pyrolysis furnace plant

Continuous working electric heating pyrolysis furnace plant

Efficiently calcine and dry bulk powder and lump fluid materials with an electric heating rotary furnace. Ideal for processing lithium ion battery materials and more.

Electric activated carbon regeneration furnace

Electric activated carbon regeneration furnace

Revitalize your activated carbon with KinTek's Electric Regeneration Furnace. Achieve efficient and cost-effective regeneration with our highly automated rotary kiln and intelligent thermal controller.

Graphite Disc Electrode Graphite Rod Graphite Sheet Electrode

Graphite Disc Electrode Graphite Rod Graphite Sheet Electrode

High-quality graphite electrodes for electrochemical experiments. Complete models with acid and alkali resistance, safety, durability, and customization options.

Vacuum sealed continuous working rotary tube furnace

Vacuum sealed continuous working rotary tube furnace

Experience efficient material processing with our vacuum-sealed rotary tube furnace. Perfect for experiments or industrial production, equipped with optional features for controlled feeding and optimized results. Order now.

High Thermal Conductivity Film Graphitization Furnace

High Thermal Conductivity Film Graphitization Furnace

The high thermal conductivity film graphitization furnace has uniform temperature, low energy consumption and can operate continuously.

Hydrogen atmosphere furnace

Hydrogen atmosphere furnace

KT-AH Hydrogen atmosphere furnace - induction gas furnace for sintering/annealing with built-in safety features, dual housing design, and energy-saving efficiency. Ideal for lab and industrial use.

Graphite evaporation crucible

Graphite evaporation crucible

Vessels for high temperature applications, where materials are kept at extremely high temperatures to evaporate, allowing thin films to be deposited on substrates.

Vacuum hot press furnace

Vacuum hot press furnace

Discover the advantages of Vacuum Hot Press Furnace! Manufacture dense refractory metals & compounds, ceramics, and composites under high temp and pressure.

Negative Material Graphitization Furnace

Negative Material Graphitization Furnace

Graphitization furnace for battery production has uniform temperature and low energy consumption. Graphitization furnace for negative electrode materials: an efficient graphitization solution for battery production and advanced functions to enhance battery performance.

Continuous graphitization furnace

Continuous graphitization furnace

High-temperature graphitization furnace is a professional equipment for graphitization treatment of carbon materials. It is a key equipment for the production of high-quality graphite products. It has high temperature, high efficiency and uniform heating. It is suitable for various high-temperature treatments and graphitization treatments. It is widely used in metallurgy, electronics, aerospace, etc. industry.

Large Vertical Graphitization Furnace

Large Vertical Graphitization Furnace

A large vertical high-temperature graphitization furnace is a type of industrial furnace used for the graphitization of carbon materials, such as carbon fiber and carbon black. It is a high-temperature furnace that can reach temperatures of up to 3100°C.

Horizontal high temperature graphitization furnace

Horizontal high temperature graphitization furnace

Horizontal Graphitization Furnace: This type of furnace is designed with the heating elements placed horizontally, allowing for uniform heating of the sample. It's well-suited for graphitizing large or bulky samples that require precise temperature control and uniformity.

Vertical high temperature graphitization furnace

Vertical high temperature graphitization furnace

Vertical high temperature graphitization furnace for carbonization and graphitization of carbon materials up to 3100℃.Suitable for shaped graphitization of carbon fiber filaments and other materials sintered in a carbon environment.Applications in metallurgy, electronics, and aerospace for producing high-quality graphite products like electrodes and crucibles.


Leave Your Message