Vacuum furnaces are used for annealing and aging of products made of various materials, such as tungsten, molybdenum, niobium, copper alloys, etc., as well as electrical steel, permanent magnet alloys, stainless steel, heat-resistant alloys, hydrogen battery alloys, chemically active metals and metals with high melting point. Structurally, the furnaces can be with horizontal or vertical loading
Specifications :
The maximum temperature in the working chamber , °C - 750-1300
Maximum vacuum Pa - 2×10-3
Maximum overpressure, Bar - 2
Temperature uniformity, °C - ±5
Flow rate (in a cold empty vacuum furnace), Pa/hour- 5
Working area, horizontal design (W×H×D), mm - from 400×400×600 to 1000×1000×2000
Working area, vertical design (Ø×H), mm - from 400×400 to 2000×2000
Vacuum nitriding is a heat treatment process in which nitrogen atoms diffuse into the metal surface, creating a surface hardening of the material. Such processes are most often used for surface hardening of low-carbon and low-alloy steels, but it can also be used for hardening medium and high-carbon steels, titanium, aluminum and molybdenum. Typical applications of this series of furnaces include the production of gears, crankshafts and camshafts, camshafts, valve parts, screw extruders, injection molding tools, forging dies, dies, firearms parts, injectors and other mold elements.
Specifications :
Maximum temperature in the working chamber , °C - 720
Temperature uniformity, °C - ±5
Flow rate (in a cold empty vacuum furnace), Pa/hour - 0.5
The maximum vacuum Pa (in a cold vacuum furnace) is 6.7×10-1
Maximum overpressure, Bar - 2
Working area, (WxHxD), mm - from 250x250x400 to 800x800x1200
The mass of the simultaneously loaded cage, kg - 1200
Vacuum cementation is a heat treatment process in which a directed diffusion of carbon atoms into the metal surface is created when a carbon-containing material, such as coal or carbon monoxide, is heated. This creates a surface hardening of the surface.
Specifications :
Maximum temperature in the working chamber , °C - 1300
Temperature uniformity, °C - ±5
Flow rate (in a cold empty vacuum furnace), Pa/hour - 0.5
The maximum vacuum Pa (in a cold vacuum furnace) is 2×10-3
Maximum overpressure, Bar - 2
Working area, (WxHxD), mm - from 250x250x400 to 800x800x1200
The mass of the simultaneously loaded cage, kg - 1200
High vacuum furnaces for sintering and annealing of products
Vacuum furnaces are used for sintering and annealing products made of a variety of materials and alloys: magnetic rare earth elements, hydrogen battery alloys, easily oxidizing and refractory metals, conducting other types of heat treatment, in the sintering processes of Sm-Co, AlNiCo powders, metal powders, carbides, ceramic materials, photovoltaic coating materials, magnetic materials and rare-earth refractory metals, alloys based on W, Mo, W-Cu, purification of graphite products.
Specifications :
The maximum temperature in the working chamber , °C - 2200
Temperature uniformity, °C - ±3
Flow rate (in a cold empty vacuum furnace), Pa/hour - 0.5
The maximum vacuum Pa (in a cold vacuum furnace) is 2×10-3
Working area, horizontal design (WxHxD), mm - from 300x300x500 to 700x700x1500
Working area, vertical design (Ø×H), mm - 400×500 to 1500×1500
Cooling rate of an empty furnace (from 1100°C to 150 ° C), minutes - 20
Vacuum induction melting furnaces for continuous casting
The melting chamber, the loading chamber and the refrigerating chamber are separated by vacuum gates, which allow loading the molds into the melting chamber without breaking the vacuum, alloying the melt and unloading the ingots. This enables continuous operation and increases productivity. At the same time, in furnaces it is possible to pour the melt into several molds at once in one cycle. The loading chamber and the temperature measurement system are adapted to the possibility of fully automating the work. These installations are mainly designed for precision casting of materials and alloys based on iron, nickel and cobalt, heat-resistant and heat-resistant alloys, magnetic materials, etc.
Specifications :
Maximum temperature in the working chamber , °C - 1750
Accuracy of temperature maintenance, °C - ±3
Working vacuum, Pa -10-2
Flow rate, Pa/hour - 2.0
The maximum volume of the crucible, kg - 2000
Working area, (WxHxD), mm - from 500x800 to 1500x2000
Generator power, kW - from 175 to 1000
Generator frequency, Hz - from 500 to 2000
Generator voltage, V - from 300 to 500
Water consumption, m3/hour - from 7.5 to 25
Water pressure, MPa - 0.3
Vacuum induction melting furnaces of periodic action
Vacuum induction melting furnaces of periodic action are designed for melting metals and alloys in vacuum. The principle of their operation is based on heating by high-frequency currents. They are widely used in scientific research and in manufacturing enterprises for the production of special alloys and nickel-based alloys, precision alloys, Mb-Ee-V alloys, chemically active metals, heat-resistant alloys, hydrogen battery alloys, magnetic materials, for research and production of non-ferrous metals and their alloys. Variants of designs with vertical and horizontal loading are possible. The installations consist of the following components: a vacuum chamber, a melting system, a mold transfer device, a vacuum system, a transformer, an automatic control system, a multi-position viewing window, a water cooling system, an operator platform, etc.
Specifications:
Maximum temperature in the working chamber, °C - 1850
In vacuum-hydrogen furnaces, the method of indirect heating by high-frequency currents is used. When heated in the inductor of a tungsten crucible, the sintered products are heated by radiation: refractory materials such as tungsten, titanium, molybdenum and alloys based on them. The furnaces are safe for operation, they are made in explosion-proof design. The equipment operates at low currents and high voltage, which leads to energy savings. The thermal insulation of the furnaces is made of a special design, which increases the reliability of the equipment. The automatic control system allows you to save, load from memory and edit heating modes. The generators used in the design manufactured by the company YUVT have high efficiency, reliable in operation.
Specifications:
Maximum temperature in the working chamber, °C - 2400
Temperature uniformity, °C - ± 10
Flow rate (in a cold empty vacuum furnace), Pa/hour - 0.67
Maximum vacuum Pa - 10-3
Working area, (WxHxD), mm - from 350 x 500 to 900x1700
They are used in the production of plate heat exchangers, automobile radiators, radiators of automobile air conditioners, capacitors, radar antennas and waveguides
It is used for soldering aluminum products, for example, aluminum plates of heat exchangers, car radiators, evaporators and condensers for car air conditioners, radar antennas and waveguide tubes
Vacuum induction sintering furnaces refer to equipment in which high-frequency currents are used for heating.The furnace design includes the following elements: a chamber and a heating system, a binder and soot removal system, a forced cooling system and a vacuum system.
Specifications:
Maximum temperature in the working chamber, °C - 2800
Temperature uniformity, °C - ±15
Flow rate (in a cold empty vacuum furnace), Pa/hour - 0.67
Maximum vacuum Pa - 4×10-2
Furnace design options - vertical, with upper and lower loading, horizontal
Working area, horizontal design (W×H×D), mm - from 100×100×300 to 600×600×1500
Working area, vertical design (Ø×H), mm - from 200×300 to 900×2000
Generator power kW - from 160 to 750
Generator frequency HZ - 1000 to 2000
High Temperature Vacuum Induction Furnaces for Sintering
Currents flowing in a multi-turn inductor generate an alternating magnetic field around the inductor, which creates heating currents in a graphite crucible. Heating of the material in the crucible to the required temperature is due to heat transfer. Graphite is used for the possibility of obtaining a high temperature in the crucible due to its thermal resistance. The main application of this series of furnaces: sintering of silicon carbide. Sintering temperature up to 2500 °C. The furnace design includes the following elements: a chamber and a heating system, a binder and soot removal system, a forced cooling system and a vacuum system.
Specifications:
Maximum temperature in the working chamber, °C - 2000
Accuracy of temperature maintenance (±), °C - 5
Maximum vacuum of the vacuum furnace, Pa - 1.5
Maximum vacuum Pa - 7x10-1
Uniform temperature ° C - ± 10
Working area, (WxHxD), mm - from 500x800 to 1500x2000
The furnace versions are vertical, horizontal and with a bottom loading.
Generator power - from 160 to 750
Generator frequency - from 1000 to 2000
Low-temperature vacuum furnaces for soldering with low-melting solder
Low-temperature vacuum brazing furnaces are used in the production of plate heat exchangers, automobile radiators, radiators of automobile air conditioners, condensers, radar antennas and waveguides. Soldering is done by low-melting solders with solid solder, and is a vacuum-thermal method of creating vacuum-tight joints. This method is widely used in the automotive, electronics, defense, aerospace and aviation industries.
The furnaces are controlled by a programmable logic controller. The temperature in the furnaces is maintained with high accuracy by a separate controller. The furnaces have a high level of automation. During operation, the operator can safely switch from automatic to manual control mode, an emergency warning system is provided in the furnaces. The furnaces are easy to set up, manage and maintain.
When developing the design of this series of furnaces, our designers paid special attention to ease of maintenance, reduced energy consumption, environmental protection and increased productivity.
Specifications :
Maximum temperature in the working chamber , °C - 850
Accuracy of temperature maintenance, °C - ±5
Flow rate (in a cold empty vacuum furnace), Pa/hour - 3
Maximum vacuum Pa (in a cold empty furnace) - 8x10-4
Working area, (WxHxD), mm - from 500x500x900 to 1100x1300x2500
The maximum mass of a simultaneously loaded cage, kg - 2000
High temperature vacuum furnaces for soldering with refractory solder
This equipment is used in the processes of vacuum soldering of refractory alloys and dissimilar alloys, which include Ti, Zr, Nb, Mo. The method is widely used in the production of heat exchangers, diamond cutting tools, Fe-Cr-AI alloys, plate heat exchangers, oil heat exchangers. The process of soldering with refractory solder takes place in a vacuum or a protective atmosphere. As a result, there is no oxidation of parts, deformations of the connected products are minimized, there is no porosity in the resulting joint, the use of flux is not required, the surface of the junction has a good appearance, there is no pollution of the environment. The furnaces are controlled by a programmable logic controller. The temperature in the furnaces is maintained with high accuracy by a separate controller. The furnaces have a high level of automation. During operation, the operator can safely switch from automatic to manual control mode, an emergency warning system is provided in the furnaces. The furnaces are easy to set up, manage and maintain.
Specifications:
Maximum temperature in the working chamber , °C - 1300
Temperature uniformity, °C - ±5
Maximum vacuum, Pa (in a cold empty furnace) - 2x10-3
Working area, (WxHxD), mm - from 450x450x900 to 1300x1200x4500
The maximum mass of a simultaneously loaded cage, kg - 4,000
Three-chamber vacuum furnaces for continuous soldering
The series of these furnaces is widely used for soldering aluminum products, for example, aluminum plates of heat exchangers, car radiators, evaporators and condensers for car air conditioners, radar antennas and waveguide tubes. The equipment allows you to obtain vacuum-tight connections without using flux and without polluting the environment. Furnaces are an excellent alternative to the process of soldering products in salt baths.
Specifications :
Maximum temperature in the working chamber , °C - 1300
Temperature uniformity, °C - ±3
Flow rate (in a cold empty vacuum furnace), Pa/hour - 0.5
Maximum vacuum Pa - 2×10-3
Working area, (WxHxD), mm - from 400x500x500 to 1200x1000x1800
Vacuum furnaces for growing single crystals / Directional crystallization furnaces
In vacuum furnaces, metals and alloys are heated and melted by high-frequency currents. Specially designed furnaces with the help of modern equipment and a heat sink system, a temperature gradient is formed at the melt boundary, as a result of which the material solidifies directionally and slowly stretches, forming a single crystal.
Specifications:
The diameter of the mold, mm - From 250 to 600
Capacity, kg - 100
Maximum temperature, °C - 1850
Mold heating power, kW - From 40 to 120
Melting power, kW - From 50 to 160
Maximum vacuum, Pa - 6,7×10-3
Flow rate, Pa/h - 0.75
Frequency, Hz - From 2000 to 4000
Vacuum furnaces for soldering of electro-vacuum devices
The furnaces have a high vacuum, high pumping speed and are characterized by a low oil vapor content in the vacuum chamber. Also, this series of furnaces can be used for soldering in vacuum with refractory solders and conducting heat treatment of alloy steels in vacuum.
Specifications :
Maximum temperature in the working chamber , °C - 1100
Accuracy of temperature maintenance (±), °C - 5
Flow rate (in a cold empty vacuum furnace), Pa/hour - 0.1
Maximum vacuum Pa - 2x10-4
Working area, (WxHxD), mm - from 400x500x600 to 700x700x1000
Better results and repeatability of the process are provided by automated computer control of the melting process, which eliminates the need for operator intervention. The final product is a dense ingot with a minimum amount of impurities and a low content of hydrogen and oxygen. In the process, the consumable electrode is melted by maintaining a controlled electric arc in a vacuum. The arc burns between a negatively charged melting electrode (cathode) and a crucible (anode) and forms a bath of molten metal. The size of the arc gap is controlled with high precision, which makes it possible to control the melting rate of the electrode. An advanced control system based on specially developed algorithms that take into account the weight of the unspent electrode, measurements of the arc gorenje voltage and other parameters, allows you to control the gap between the electrode and the melting rate of the metal. Metal refining occurs due to the fact that falling into the arc gap, metal droplets are exposed to vacuum and extremely high temperatures in the arc gorenje. This leads to the removal of gases dissolved in it from the melt, evaporation of impurities, as well as a decrease in the content of oxides in it. Thanks to the water-cooled crucible, the crystallization of the molten metal in the ingot occurs in a directional way. With proper control of the melt velocity and arc gap, controlled cooling prevents the segregation of impurities, reduces their liquation in the metal, thereby improving its properties. Closer to the end of the VDP process, the power is gradually reduced to ensure maximum yield of usable products.
Specifications :
Flow rate, Pa/hour - 2
Maximum vacuum, Pa (in a cold empty furnace) - 6×10-2
Designed for quenching, annealing, heating before forging, tempering, normalization of metal parts, as well as for firing ceramics and heat treatment of glass products
They are used for aging processes, normalization, stress relief, homogenization, annealing, heat treatment of aluminum products with quenching in water, dispersion hardening, soldering.
Furnaces for firing ceramics and heat treatment of glass have a lighter design, lightweight materials are used for their production, since the cage is loaded and unloaded at low temperatures, and the process itself takes place in a soft mode. To control the furnaces, controllers are used that allow programming the temperature change with respect to time. To carry out the quenching process, the furnaces can be equipped with quenching baths. The transfer of the cage to the quenching medium is carried out using an automated complex. We offer loading and unloading equipment for furnaces with a working chamber volume of more than 2 m3.
Specifications:
The maximum temperature in the working chamber, °C - 200-1300
The atmosphere in the furnace is oxidizing /protective
Temperature uniformity, °C - ± 10\
The volume of the working chamber, m3 - from 0.2 to 15
The bell furnace consists of a lined bell with heaters and one or more fixed platforms. Furnaces of this type are used for heat treatment of products of large dimensions and weight. The design of the furnace allows you to save production facilities, and if there is more than one platform, higher productivity is achieved compared to furnaces of other types. They are convenient when using protective gases.
Specifications:
The maximum temperature in the working chamber, °C - 200-1300
The atmosphere in the furnace is oxidizing /protective
Temperature uniformity, °C - ± 10
The volume of the working chamber, m3 - from 0.5 to 10
Electric and gas furnaces with a retractable hearth
Furnaces of this type are used for quenching, annealing, heating before forging, tempering, artificial aging, normalization of metal parts, as well as for firing ceramics and heat treatment of glass products. The more robust construction of the frame and bottom of the furnace, the mechanical and thermal shock-resistant vault of the chamber allows loading heavy parts, and the increased power ensures rapid temperature recovery, since the loading and unloading of the cage is carried out with a hot working chamber.
Specifications:
Maximum temperature in the working chamber, °C - 200-12 00
The atmosphere in the furnace is oxidizing/protective
Temperature uniformity, °C - ± 10
The volume of the working chamber, m3 - from 1 to 15
During low-temperature thermal processes, various gases and vapors evaporate, so the design of the working chamber ensures tightness and removal of gases into the ventilation system. Our furnaces are equipped with air circulation systems that guarantee precise temperature uniformity, fresh air supply and gas removal from the working chamber. Depending on the aggressiveness of the gases emitted, the working chamber can be made of different types of stainless steel. Furnaces designed for processes in which the air circulation rate must be limited have air velocity regulators. For drying processes in explosive environments, heating elements with double protection and non-sparking components are usually installed. Programmable controllers are used for temperature control, which allow you to set the temperature range over time.
Specifications:
The maximum temperature in the working chamber, °C - 80-500
The atmosphere in the furnace is oxidizing/protective
Temperature uniformity, °C - ±5
The volume of the working chamber, m3 - from 0.5 to 15
The furnace meets all NADCAP requirements and AMS 2750D and RPS 953 standards.
Characteristics: • The unit consists of a furnace mounted on a high metal structure, a self-propelled platform with a cooling water tank and a loading platform for installing a basket with parts and a mechanism for loading a basket with parts into the furnace and unloading from the furnace. • Maximum operating temperature 650 °C. • The temperature run-up in the working area of the furnace is not more than ± 6 ° C. • The time from the start of opening the oven to immersion of the basket in water is 7-10 seconds. • Heating elements with low current density located around the perimeter of the furnace are used as heaters. • Depending on the size, the oven has one or more temperature control and regulation zones. • Forced air circulation system in the working area of the furnace. • The stainless steel cooling water tank is equipped with an intensive water mixing system, a water level control sensor and a thermocouple. • At the request of the customer, the unit can be equipped with water heating and cooling systems, quenching tank covers with pneumatic actuators and mon
Characteristics: Furnaces and systems for heat treatment of aluminum are designed according to the individual needs of the customer. Our solutions integrate and optimize production and logistics processes, as well as improve production flexibility. We offer furnaces of various types: from a conventional chamber furnace to a fully automatic line. Processes in furnaces can be carried out in an oxidizing environment or in a protective gas.
Electric crucible furnaces for melting non-ferrous metals
There are two types of crucible melting furnaces: stationary and inclined. Morgan, Mammut and other manufacturers' crucibles are used. Furnaces are used in various industries for melting non-ferrous metals, as well as for the production of parts for household electrical appliances, machine-building plants, etc.
The working chamber can have a cylindrical or rectangular shape, as well as depending on the process with or without a convention. Such furnaces can be equipped with retorts, with the help of which thermochemical processes such as gas cementation, nitrocementation and nitriding can be carried out.
Specifications:
Maximum temperature in the working chamber, °C - 1300
The atmosphere in the furnace is oxidizing/protective
Temperature uniformity, °C - ± 10
The volume of the working chamber, m3 - from 0.5 to 15
Request for equipment
You can order the equipment you are interested in using the form below. Specialists of Silk Way XXI century LLC will contact you in the near future to clarify your order and advise on all questions of interest.