Vacuum Furnace

Molybdenum Vacuum furnace

Name: Molybdenum Vacuum furnace
Brand: Kintek Solution
SKU: KT-VM
Rating: 4.8 (9 reviews)

Item Number : KT-VM

Price varies based on specs and customizations

Max. temperature: 1400 ℃
Constant work temperature: 1300 ℃
Heating rate: 0-10 ℃/min
Effective volume: 4.5-253 L

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Introduction

A molybdenum vacuum furnace is a type of high-temperature heat treatment equipment used in various industrial applications. It utilizes molybdenum foil as a heating element and provides a vacuum environment to prevent contamination of the heated materials. This furnace exhibits high-temperature stability, excellent vacuum performance, efficient heat transfer, and high durability. It is commonly employed in fields such as vacuum sintering and vacuum brazing, where high-purity and vacuum requirements are crucial.

Applications

The molybdenum vacuum furnace finds applications in various fields, including:

Vacuum sintering
Vacuum brazing
Sapphire crystal growth
Special brazing
Heat treatment
Casting aircraft components
Refining high purity metals and alloys
Electrodes for remelting
Powder roasting
Ceramic sintering
High-temperature experiments
Material treatment
High-temperature atmosphere sintering
Ceramic glue discharge
Flue gas treatment
Annealing and sintering

Detail & Parts

Molybdenum plate of heat insulation material in vacuum furnace

Features

The molybdenum foil vacuum furnace provides various benefits that cater to specific customer needs:

High-temperature stability: Guarantees consistent heating temperatures for reliable heat treatment processes, even under demanding conditions.
Excellent vacuum performance: Maintains a high vacuum level and prevents contamination, ensuring the integrity of heated materials.
Efficient heat transfer: Facilitates faster heating rates and improved thermal uniformity, enhancing process efficiency.
High durability: Resists high temperatures and oxidation, ensuring prolonged usage without performance degradation.

Principle

The molybdenum vacuum furnace utilizes the high-temperature resistance and excellent vacuum performance of molybdenum foil as the heating element and furnace liner. It operates by creating a high-temperature vacuum environment through resistive heating of the molybdenum foil, which effectively isolates the heated materials from external contaminants and enables precise temperature control. This unique design allows for high-temperature heat treatment processes in a clean and controlled atmosphere, making it ideal for applications such as vacuum sintering and vacuum brazing.

Advantages

High-temperature stability: The molybdenum foil vacuum furnace exhibits remarkable temperature stability, maintaining a consistent heating temperature and ensuring a reliable heat treatment process under high-temperature conditions.
Excellent vacuum performance: The molybdenum foil material possesses exceptional sealability and corrosion resistance, enabling the furnace to maintain a high vacuum level and prevent contamination of the heated materials.
Efficient heat transfer: Utilizing molybdenum foil material, the vacuum furnace facilitates efficient heat transfer, resulting in faster heating rates and improved thermal uniformity.
High durability: The molybdenum foil material exhibits excellent resistance to high temperatures and oxidation, allowing for prolonged usage at elevated temperatures without failure.

Safety Advantage

Kindle Tech vacuum furnace owns over current protection, over temperature alarming function, furnace will turn off the power automatically
Furnace build in thermal couple detecting function, furnace will stop heating and alarm will be on once broken or failure detected
Power failure restarting function,furnace will resume the furnace heating program when power is incoming after failure

Technical specifications

Furnace model		KT-VM
Max. temperature		1400 ℃
Constant work temperature		1300 ℃
Chamber insulation material		molybdenum heat shied
Heating element		Molybdenum Strip
Heating rate		0-10℃/min
Temperature sensor		Build in S type thermal couple
Temperature controller		Touch screen PID controller with PLC
Temperature control accuracy		±1℃
Temperature uniformity		±5℃
Electric power supply		AC110-440V,50/60HZ
Standard Chamber Sizes Stocks
Chamber size (mm)	Effective volume (L)	Chamber size (mm)	Effective volume (L)
150x150x200	4.5	400x400x500	80
200x200x300	12	500x500x600	125
300x300x400	36	600x600x700	253
Customer design sizes and volume is accepted

Optional Setup

Independent furnace temperature monitoring and recording
RS 485 communication port for PC remote control and data exporting
Optional pneumatic vacuum valve linkage with temperature controller
Touch screen temperature controller with versatile operator friendly functions
Cold water circulation cooling machine for furnace shell jacket cooling system

Precautions and maintenance

The molybdenum foil vacuum furnace consists of key components such as the furnace chamber, molybdenum strips, vacuum gauge, vacuum system, and water cooler. The following precautions and maintenance guidelines should be observed:

Furnace Chamber		Regularly inspect the chamber’s interior surface for brightness. Ensure dryness and cleanliness inside the chamber to prevent oxidation and product contamination. Avoid rapid heating rates that may cause thermal expansion deformation of the insulation screen. Verify the leak rate and ultimate vacuum before initiating heating. Maintain a vacuum in the chamber when not in use, and perform chamber baking if volatiles are present. Implement a slower heating rate during high-temperature stages.
Molybdenum Strips Heater		Molybdenum Strips Heater Take care not to drop objects onto the molybdenum strips when removing products, as it may cause breakage. Prevent low-melting point iron-containing products from volatilizing onto the molybdenum strips, as it can lead to strip melting and breakage over time. Securely hold the product with both hands or appropriate tools when taking it out. Strictly control the impurity content in the product.
Pirani Gauge and Ionisation Gauge		Adhere to safety regulations for electrical equipment when operating and maintaining pirani gauges. Avoid forcibly disassembling the gauge tubes while the furnace is under vacuum. Do not pressurize the gauge (above 0.05Pa); if necessary, turn off the gauge power. Refrain from introducing corrosive gas atmospheres. Calibrate the vacuum gauge with dry air or nitrogen, as other atmospheres may cause measurement deviations. Avoid turning on the ionization gauge under atmospheric pressure, as it may result in damage. Clean the seals and contact surfaces with acetone or alcohol when disassembling, and apply vacuum grease before reassembling. Perform zero point and full-scale calibration for the first use or after a period of use to match the vacuum and pirani gauges.
Mechanical Pump		Ensure the pump temperature does not exceed 45 degrees to prevent non-wear of the pump cavity and detrimental effects on the vacuum. Monitor the oil color in the oil window regularly. Check for oil splashing from the exhaust when starting the vacuum pump, and inspect the oil level. Measure the pump temperature before and during operation, and monitor the cooling water temperature. Change the oil every three months (model: HFV-100). If the oil level is high, open the drain valve to lower it to the standard level.
Roots Pump		Maintain cleanliness inside the pump cavity. Monitor the quality of pump oil. Ensure proper pump rotation. Avoid placing products with high moisture or large particles in the furnace chamber. Promptly replace the diffusion pump oil if it becomes discolored or emulsified. Immediately contact the manufacturer if any abnormal conditions occur with the pump.
Diffusion Pump		Check if the diffuser oil in the oil window requires replacement. Monitor the pumping speed after starting. Ensure adequate cooling water supply to the pump. Replace the diffusion pump oil with the appropriate model (HFV-3). Verify that the heater temperature, oil level, and pump core installation are normal. Maintain the pump surface temperature between 10-35 degrees Celsius and humidity below 65%.
Water Cooler		Thoroughly read the manual before operating the water cooler. Pay attention to the rotation directions of the inlet and outlet water pumps. Confirm that the furnace water inlet pressure is displayed correctly after starting. Establish an effective heat dissipation system. Regularly check the water quality inside the water tank. Clean the heat dissipation system every 3-5 months. Avoid overloading the set temperature; for example, if the set temperature is 20 degrees, it should not go below 21 degrees. Adjust the set point above 21 degrees. Ensure proper ventilation for the cooler’s placement. Occasionally open the side cover and clean the inside water tank with diluted hydrochloric acid.

In summary, the molybdenum foil vacuum furnace is an efficient, stable, durable, and safe device. However, it requires regular vacuum maintenance, safe operation, and diligent maintenance practices to ensure its long-term stable operation.

Warnings

Operator safety is the top important issue! Please operate the equipment with cautions. Working with inflammable& explosive or toxic gases is very dangerous, operators must take all necessary precautions before starting the equipment. Working with positive pressure inside the reactors or chambers is dangerous, operator must fellow the safety procedures strictly. Extra caution must also be taken when operating with air-reactive materials, especially under vacuum. A leak can draw air into the apparatus and cause a violent reaction to occur.

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FAQ

What is a vacuum furnace used for?

A vacuum furnace is used for high-temperature processing of materials in a controlled environment without any contamination. It operates by surrounding the product with a vacuum, which prevents oxidation and heat loss from the product through convection. This furnace is commonly used for heat treatment of steel alloys at temperatures below 1200 °C. High-temperature vacuum furnaces can reach temperatures up to 3000°C and are used for industrial processes such as sintering, brazing, annealing, and heat treatment with high consistency and low contamination. The ability to achieve uniform heating across the entire workpiece is a key benefit of using a high-temperature vacuum furnace.

What are muffle furnace used for?

Muffle furnaces are mainly used for high-temperature applications in industrial manufacturing and laboratory environments. They provide a controlled and insulated environment for heating materials, allowing precise temperature control. Muffle furnaces are ideal for ashing samples, heat-treating applications, and materials research. They are commonly used for melting glass, creating enamel coatings, technical ceramics, soldering, and brazing. Muffle furnaces use technology and design to achieve greater control of temperature uniformity and isolate heated materials from combustion contaminants.

What is the process of a vacuum furnace?

The process of a vacuum furnace involves loading the parts into the chamber and creating a vacuum inside it by utilizing a vacuum pump. The next step is to heat the parts using temperature controls, which can reach between 1,500 and 5,400 degrees Fahrenheit. This process eliminates the possibility of oxidation and contamination, resulting in a higher purity end product. After heating, the parts are cooled and finished before being removed from the vacuum furnace. The furnace consists of various components, including the vacuum system, furnace shell, electric heating element, temperature controls, power supply system, and transport apparatus.

What is vacuum arc melting process?

Vacuum arc melting (VAR) is a secondary melting process used to produce metal ingots with high chemical and mechanical homogeneity for critical applications in industries like aerospace, energy, and nuclear. The process involves refining liquid metal under vacuum and controlling its solidification rate. It is used for the purification of reactive titanium or zirconium alloys, without any contact with casting refractories, as well as for improving inclusion cleanliness in steels and superalloys. The remelted cylindrical ingots can weigh several tons, and VAR has revolutionized the specialty metallurgical techniques industry.

How does a vacuum induction melting furnace work?

A vacuum induction melting furnace works by utilizing electromagnetic induction under vacuum or protective atmosphere conditions to melt metals and alloys that combine easily or have close affinity with oxygen, nitrogen, and hydrogen. The furnace contains a refractory-lined crucible enclosed by an induction coil that generates an eddy current of heat in the material being processed. The furnace's vacuum system totally eradicates gases from the molten metals, and the cooling system contributes to the controlled melting temperature. The furnace is highly reliable, gives high productivity, and produces metals with very close compositional tolerances.

What are the types of muffle furnace?

Box furnace, tube furnace, crucible furnace, split furnace, vacuum furnace, and multi-zone furnace are some types of muffle furnaces. The choice of muffle furnace depends on the specific application and requirements of the user.

What gas is used in a vacuum furnace?

Different gases can be used in a vacuum furnace depending on the application. In general, vacuum furnaces can work with gases or mixtures such as Argon, Nitrogen, Hydrogen, Carbon Monoxide, Helium, among others. The use of these gases allows for heat treatment in a defined, mostly non-oxidizing atmosphere, which is required for various applications such as vacuum soldering and brazing, vacuum annealing, and sintering. Additionally, it is possible to work with a defined oxygen concentration that is different from the air composition.

What is VAR Vacuum Arc Remelting (VAR)Furnace?

VAR or Vacuum Arc Remelting is a process used to refine and improve the cleanliness of ingots made from standard air-melted, vacuum induction melted, or ESR remelted alloys. It is used for steels, superalloys, titanium, zirconium, and their alloys in industries such as aerospace, power generation, defense, medical, and nuclear. VAR is a continuous remelting process of a consumable electrode under vacuum, with DC power used to strike an arc between the electrode and a copper mold. The process removes dissolved gases, reduces undesired trace elements, improves oxide cleanliness, and achieves directional solidification of the ingot from bottom to top.

What are the advantages of vacuum induction melting?

The advantages of vacuum induction melting (VIM) include the elimination of gases, superior process control, close control of chemical analysis, slag-free melting, and melt protection. VIM is currently the most energy-efficient, fastest, low-consumption, and environmentally friendly induction heating technology for heating metal materials. The technology offers exceptional and reproducible control of reactive element-containing compositions and eliminates the need for a protective slag cover, decreasing the potential for accidental contamination or inclusions in the ingot. The process takes place in a vacuum environment, making it beneficial to remove gas impurities inside the metal, resulting in a more pure metal alloy material.

What is muffle furnace in chemistry?

A muffle furnace is a type of oven equipment used in chemistry that can reach high temperatures and provides a controlled and insulated environment for heating materials, allowing precise temperature control. It separates the object to be heated from all byproducts of combustion from the heat source. Muffle furnaces are used in solid-state reactions, such as reducing metals or creating oxides, and for limiting oxygen exposure in materials. They are also used in high-temperature chemical vapor deposition processes and are ideal for ashing samples, heat-treating applications, and materials research.

What is the heating element used in a vacuum furnace?

The heating element in a vacuum furnace is critical to its proper functioning, and is dependent on factors such as maximum operating temperature, power load, partial pressure and quench gases, and life expectancy. Vacuum furnaces are heated by electric resistance elements made from a variety of materials, including high-temperature metallic alloys such as stainless steel, nickel-chromium, molybdenum, tungsten, tantalum, or of non-metallic materials such as graphite and silicon carbide. The choice of material for the heating element is important in maximizing its longevity, reliability, efficiency, and ultimately the process results.

How does vacuum arc melting furnace work?

A vacuum arc melting furnace works by melting materials under a vacuum or low-pressure atmosphere using electric arcs. The furnace uses two electrodes, one of which is the material to be melted. The electrodes are brought close together and an electric arc is struck between them, causing the material to melt. The furnace is then evacuated to remove any impurities and the molten material is cast into a desired shape. This process is used for the production of high-purity metals, alloys, and intermetallics used in industries such as aerospace, electronics, and biomedical engineering.

How does vacuum help in induction melting furnace?

Vacuum conditions are critical in induction melting furnaces as they help to eliminate gases from the molten metals, preventing quick oxidation. The absence of gases during the melting process ensures the creation of very close compositional tolerances, resulting in consistent metals. The vacuum also provides a protective atmosphere for metals that combine easily or have a close affinity with oxygen, nitrogen and hydrogen. Vacuum induction melting furnaces use electromagnetic induction to melt metals and alloys in a refractory lined crucible enclosed by an induction coil, creating eddy currents that make the melting process possible.

What is the use of muffle furnace for ash?

Muffle furnaces are commonly used for ashing samples, which involves heating materials to high temperatures to determine their percentage of ash content. This process is helpful in testing and treating materials in various industries such as cement making, foundry, and nuclear sectors. The standard muffle furnace is also used for manufacturing glass, ceramics, and other materials. Overall, muffle furnaces play a vital role in material testing and treatment at high temperatures, making them a crucial apparatus in many industries.

What are the applications of vacuum arc melting furnaces?

Vacuum arc melting furnaces are commonly used in the production of high-performance materials, such as superalloys, special steels, and reactive metals. These materials often require high-purity and controlled composition, which can be achieved through vacuum arc melting. The process is particularly suited for the production of critical components in aerospace, automotive, and energy industries, where high strength, corrosion resistance, and temperature stability are vital. Vacuum arc melting is also used in research and development settings to produce small quantities of specialized alloys for testing and characterization purposes.

What is vacuum induction melting furnace?

A vacuum induction melting furnace is a metallurgical furnace that uses an alternating electromagnetic field to melt and form various materials under vacuum or protective atmosphere. It is widely used in the vacuum metallurgy field and is essential for producing alloys and special steels used in the aerospace, electronics, and atomic energy industries. Vacuum induction melting furnaces are also used to improve the hot workability and mechanical properties of nickel, cobalt, and iron-based superalloys, as well as to melt stainless steel, heat-resistant steel, ultra-high strength steel, and various other materials to ensure their quality and performance.

What is the temperature of muffle furnace?

The temperature range of a muffle furnace is between 800°C to 1800°C, with a maximum temperature of 1473 K (1200°C; 2192°F). It is crucial to choose a furnace that will reach the desired temperature for your applications. Muffle furnaces are commonly used in metallurgy, glassmaking, ceramics, and other industries that require materials to be melted or heated to high temperatures. It usually takes approximately an hour for a muffle furnace to reach maximum temperature.

What are the advantages of using vacuum arc melting furnaces?

Vacuum arc melting furnaces offer several advantages. Firstly, the high vacuum environment prevents oxidation and contamination, resulting in high-purity melted metals. This is especially important for producing materials with stringent quality requirements. Secondly, the electric arc generates intense heat, allowing for rapid and efficient melting of the metal. The process can be precisely controlled to achieve specific melting parameters, such as temperature, pressure, and cooling rate, facilitating the production of alloys with desired properties. Vacuum arc melting furnaces also offer flexibility in terms of the size and shape of the melted metal, as the consumable electrode can be easily replaced or modified. Additionally, the process allows for the selective removal of impurities, such as gases and non-metallic inclusions, further enhancing the purity and quality of the final melted metal.

What safety precautions should be followed when using a vacuum arc melting furnace?

When using a vacuum arc melting furnace, several safety precautions should be followed to ensure safe operation. Firstly, the furnace should be operated by trained personnel who are familiar with the equipment, its operation, and safety protocols. Adequate personal protective equipment, such as heat-resistant gloves, safety goggles, and fire-resistant clothing, should be worn when handling hot materials or operating the furnace. The vacuum system should be regularly inspected and maintained to ensure proper functionality and prevent safety risks. It is important to follow the manufacturer's guidelines and instructions for safe operation and maintenance of the vacuum arc melting furnace. Additionally, proper handling and disposal of consumable electrodes and melted materials should be carried out according to established safety guidelines and regulations. Regular inspections and maintenance of the furnace, including electrical systems, cooling systems, and gas handling components, should be performed to ensure safe and reliable operation.

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The molybdenum vacuum furnace from KINTEK SOLUTION is a game-changer for our laboratory. It's efficient, precise, and incredibly durable.

Magnus Isiaka

4.7

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We've been using the molybdenum vacuum furnace for over a year now, and it's been a fantastic investment. It's reliable, easy to use, and produces high-quality results.

Anika Nguyen

4.8

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The molybdenum vacuum furnace from KINTEK SOLUTION is a top-notch piece of equipment. It's well-built, easy to operate, and delivers exceptional performance.

Lucas Brandt

4.9

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We recently upgraded to the molybdenum vacuum furnace from KINTEK SOLUTION, and we're thrilled with the results. It's faster, more efficient, and produces better-quality products.

Isabella Patel

4.7

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The KINTEK SOLUTION molybdenum vacuum furnace is a great choice for labs that demand precision and reliability. It's a well-made, high-quality product that delivers consistent results.

Oliver Chen

4.8

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We've been using the molybdenum vacuum furnace for several months now, and it's exceeded our expectations. It's easy to use, maintains temperature accurately, and produces high-quality results.

Amelia Rodriguez

4.9

out of

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The molybdenum vacuum furnace from KINTEK SOLUTION is a fantastic addition to our lab. It's user-friendly, efficient, and produces excellent results. We highly recommend it.

Elijah Kim

4.7

out of

5

We're very impressed with the molybdenum vacuum furnace from KINTEK SOLUTION. It's a well-built, reliable piece of equipment that delivers exceptional performance.

Sophia Johnson

4.8

out of

5

The molybdenum vacuum furnace from KINTEK SOLUTION is a great investment for any lab. It's efficient, accurate, and produces high-quality results. We're very happy with our purchase.

Jackson Williams

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FAQ

What is a vacuum furnace used for?

What are muffle furnace used for?

What is the process of a vacuum furnace?

What is vacuum arc melting process?

How does a vacuum induction melting furnace work?

What are the types of muffle furnace?

What gas is used in a vacuum furnace?

What is VAR Vacuum Arc Remelting (VAR)Furnace?

What are the advantages of vacuum induction melting?

What is muffle furnace in chemistry?

What is the heating element used in a vacuum furnace?

How does vacuum arc melting furnace work?

How does vacuum help in induction melting furnace?

What is the use of muffle furnace for ash?

What are the applications of vacuum arc melting furnaces?

What is vacuum induction melting furnace?

What is the temperature of muffle furnace?

What are the advantages of using vacuum arc melting furnaces?

What safety precautions should be followed when using a vacuum arc melting furnace?

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