Vacuum brazing furnace principle

The vacuum brazing furnace is a furnace for performing maintenance sintering on the object to be heated in a vacuum environment, and the heating method is relatively high, such as resistance heating, induction heating, microwave heating, and the like. The vacuum induction furnace is a furnace that performs maintenance sintering on the heated article by induction heating, and can be classified into a power frequency, an intermediate frequency, a high frequency, and the like, and can be attributed to a subclass of the vacuum brazing furnace.lab-use-small-volume-vacuum-induction-melting-furnace

The vacuum induction sintering furnace is a complete set of equipment for sintering cemented carbide tips and various metal powder restraints by using the principle of medium frequency induction heating under vacuum or maintenance atmosphere. It is made of cemented carbide, metal tantalum and ceramic materials. Planned for industrial production. VSWF vacuum induction tungsten sintering hydrogen furnace I, the first principle and the use of vacuum induction tungsten sintering furnace is under the condition of hydrogen charging after vacuuming, using the principle of medium frequency induction heating, so that the tungsten crucible in the coil generates high temperature, after heat radiation conduction At work, it is suitable for scientific research and military units to form powder sintering of refractory alloys such as tungsten, molybdenum and their alloys.hydrogen-sintering-furnaces

Second, the primary layout and composition The layout methods are mostly vertical and lower discharge methods. The primary group becomes: electric furnace body, vacuum system, water cooling system, pneumatic system, hydraulic system, feeding and discharging mechanism, base, work table, induction heating equipment (tungsten heating body and high-grade insulation material), power feeding equipment, intermediate frequency power supply and Electrical control system, etc.hydrogen-annealing-furnaces

 Third, the primary function After the vacuum is filled with hydrogen maintenance gas, control the furnace pressure and atmosphere sintering conditions. The optical fiber infrared radiation thermometer and the armored thermocouple can be connected to the temperature measurement (0～2500°C), and after the intelligent temperature controller is compared with the setting program, the performance status feedback is selected to the intermediate frequency power supply, and the temperature concave and convex and the heat preservation are automatically controlled. program.medium-temperature-hydrogen-furnace

vacuum atmosphere furnace characteristics

With the development of electronic information technology and economic prosperity, soft ferrite materials are more and more inclined to high-grade, small batch, multi-variety, short delivery period, good consistency and so on. In the past, the push-plate vacuum atmosphere furnace has gradually failed to meet the requirements of this high-grade product and changeable. The bell-shaped furnace came into being. The traditional soft ferrite manufacturers in the world have ordered the bell-shaped furnace. Laboratory-vacuum-tube-furnace-for-vacuum-atmosphere

With China's accession to the WTO, domestic ferrosilicon manufacturers have begun to experiment in order to adapt to the needs of the market, and have begun trials to produce high-end products. The market demand for bell jar furnaces has become increasingly urgent. Now according to the needs of the market, with reference to foreign similar equipment, we have developed a new generation of sintering equipment - bell-type vacuum atmosphere furnace series products, which use all-fiber high-temperature furnace lining, partition grouping and other technologies, with large batch output, temperature It has excellent uniformity of atmosphere, high consistency of sintered products and high yield. Compared with tunnel kiln, it is more flexible and has higher control precision, especially suitable for sintering and other products.1600-C-ceramic-sintering-furnace

The task of the bell-type vacuum atmosphere furnace is to achieve the desired purpose in a certain space. In addition, for the production type vacuum atmosphere furnace, the focus should be on the uniformity of temperature and atmosphere in an even small working area. Only when the temperature and atmosphere uniformity meet certain requirements can the consistency of batch sintered products be guaranteed.690-vacuum-melting-of-nickel-base-alloy-for-desulfurization

Internal Heating Vacuum Heat Treatment Furnace

Vacuum heat treatment furnace includes vacuum annealing furnace, vacuum sintering furnace, high temperature and high pressure vacuum furnace, vacuum heating furnace, atmosphere vacuum furnace, vacuum tube furnace, vacuum box furnace, etc. Vacuum heat treatment furnace is divided into external heat treatment furnace and internal heat treatment furnace.

The structure of the internal heat vacuum heat treatment furnace is that the whole heating device (heating elements, refractories) and the workpiece to be treated are placed in the vacuum container, without the furnace tank, the whole furnace shell is a vacuum container. The furnace is equipped with electric heating elements, heat insulation screen, hearth, fan, conveyor and other components. The shell of the furnace is usually designed by double-layer water-cooling, so it can also be called cold-wall vacuum furnace.Vacuum-Sintering-Furnace-for-metal-parts-heat-treatment

Electric heating elements are mostly located in the middle of the heating chamber. They are arranged around the effective heating zone of the workpiece. The external structure is a metal radiation screen or a non-metal heat insulation screen. The furnace bed is installed in the lower part of the heating chamber. The fan structure is located in the cooling chamber. There are also heating and cooling systems installed at one end of the heating chamber, the upper part or the lower part, and the heat exchanger device constitute a forced air circulation heating and cooling system. The transfer mechanism is mostly located in the cooling chamber, some of which are connected with the material basket bracket outside the furnace. Different types of structure are adopted according to the use and some special requirements. The heating electrode is introduced through the furnace shell. The water cooling and sealing structure of the heating electrode should be considered in the design to ensure its good working characteristics.powder-metallurgy-heat-treatment-vacuum-sintering-furnace

At present, the internal heat vacuum heat treatment furnace has various forms. According to its shape and structure, it can be divided into vertical, horizontal, single chamber, double chamber and three chambers. The working cooling modes are divided into self-cooling, negative pressure gas-cooling, negative pressure oil-cooling and pressurized gas-cooling (2x10pa), high pressure gas-cooling (2x10pa) and ultra-high pressure gas-cooling (20x10pa). According to heat treatment technology, it is divided into quenching furnace and tempering furnace. It has single function and multi-function.Vacuum-induction-sintering-furnace-for-smelting-metal-powder

Vacuum Furnace Metallurgical Characteristics

Vacuum smelting (vacuum smelting furnace) has changed the physical and chemical reaction conditions at atmospheric pressure, which is mainly reflected in the reduction of gas pressure. As long as the gas phase is involved in the metallurgical reaction and the number of gas moles in the reaction product is larger than the number of gas moles in the reactant, if the pressure of the system is reduced, the equilibrium reaction can move towards increasing the gas phase. This is the fundamental characteristic of the physical and chemical reaction in vacuum melting.heat-treatment-of-skd-11-die-steel

One of the main shortcomings of atmospheric smelting (vacuum furnace) and pouring is that alloy composition (mainly some active elements) can not be accurately controlled due to burning loss, while vacuum smelting is not polluted by ambient atmosphere, and liquid metal is separated from oxygen and nitrogen in the atmosphere. Therefore, vacuum smelting can strictly control the content of active elements in alloy, such as Al, Ti, etc., and control alloy composition in a very narrow range. In this way, the properties, quality and stability of the alloy can be guaranteed.vacuum-induction-melting-and-deoxidation-of-nickel-base-superalloy

Carbon-oxygen reaction in atmospheric smelting plays a degassing and mechanical stirring role on liquid metal. However, due to the weak deoxidizing ability of carbon, it can not be used as deoxidizer alone, so precipitation deoxidization is often carried out with metal deoxidizers such as silicon and aluminium. In vacuum smelting, because of the low gas pressure and the continuous extraction of CO bubbles generated by carbon-oxygen reaction, the equilibrium moves towards the direction of CO formation, i.e. [C]+[O]={CO} reaction proceeds continuously to the right, which improves the deoxidization ability of carbon. A large number of practical data show that the deoxidization capacity of carbon in vacuum melting is about 100 times higher than that in atmospheric melting. In vacuum melting of nickel-based alloys, it is not difficult to reduce the oxygen content of the alloys to less than 20 x 10. Carbon deoxidation under vacuum not only has high deoxidizing capacity, but also its deoxidizing product is gas, easy to remove, and does not contaminate the metal melting pool. This is much superior to the deoxidizer which produces solid deoxidizing products with silicon and aluminium. Therefore, carbon is an ideal deoxidizer in vacuum melting.heat-treatment-of-skd61-die-steel/
emergency-measures-for-vacuum-sintering-furnace

Vacuum sintering furnace application

The vacuum sintering furnace is a furnace for protectively sintering the heated articles by induction heating, and can be classified into a power frequency, an intermediate frequency, a high frequency, and the like, and can be attributed to a subclass of the vacuum sintering furnace. The vacuum induction sintering furnace is a complete set of equipment for sintering the hard alloy cutter head and various metal powder compacts under the condition of vacuum or protective atmosphere, using the principle of medium frequency induction heating, which is made of cemented carbide, metal tantalum and ceramic materials. Designed for industrial production.Brazing-of-Cemented-Carbide

Main principles and uses

     The vacuum sintering furnace uses the principle of medium frequency induction heating under the condition of vacuuming and hydrogen filling protection, so that the tungsten crucible in the coil generates high temperature and is transmitted to the work through thermal radiation, which is suitable for scientific research and military units to refractory alloys. Powder forming and sintering of tungsten, molybdenum and their alloys.What-is-vacuum-heat-treatment-technology

The main function

      After the vacuum is applied, a hydrogen shielding gas is charged to control the pressure in the furnace and the sintering state of the atmosphere. The optical fiber infrared radiation thermometer and the armored thermocouple can be continuously measured (0～2500°C), and compared with the setting program by the intelligent temperature controller, the execution state feedback is selected to the intermediate frequency power supply, and the temperature is controlled automatically and the temperature is kept. program.cryogenic-furnace

What is a Vacuum Sintering Furnace

Vacuum sintering furnace refers to the furnace which sinters the heated articles in a vacuum environment. There are many heating modes, such as resistance heating, induction heating, microwave heating and so on.How-to-choose-vacuum-furnace-thermocouple

Vacuum sintering furnace is a protective sintering furnace which uses induction heating to sinter heated articles. It can be divided into power frequency, intermediate frequency, high frequency and other types, and can be classified as a subcategory of vacuum sintering furnace.Metal-vacuum-heat-treatment

Vacuum induction sintering furnace is a complete set of equipment for sintering cemented carbide cutters and various metal powder compacts by using the principle of medium frequency induction heating under vacuum or protective atmosphere. It is designed for the industrial production of cemented carbide, dysprosium metal and ceramic materials.H13-Steel-of-Heat-treatment-process