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The oxidation and decarburization of the workpiece surface during the heating process are completely eliminated, and a clean surface without a metamorphic layer can be obtained. This is a great improvement in cutting performance for those tools that only grind one side during sharpening (such as twist drills that expose the decarburized layer on the groove surface directly to the cutting edge after grinding).
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Equipment for heating in a vacuum environment. In the furnace chamber sealed by metal casing or quartz glass casing, it is connected with the high vacuum pump system by pipeline. The vacuum degree of the furnace can reach 133×(10-2～10-4)Pa. The heating system in the furnace can be directly heated by electric resistance furnace wire (such as tungsten wire), or can be heated by high frequency induction.
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The energy consumption is significantly lower than that of a salt bath furnace. The modern advanced vacuum furnace heating chamber adopts thermal insulation walls and barriers made of high-quality thermal insulation materials, which can highly concentrate the electric heating energy in the heating chamber, and the energy saving effect is remarkable.
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In a vacuum state, a group of welding parts are heated to a temperature above the melting point of the filler metal, but lower than the melting point of the base metal, and a welding process is formed by means of the wetting and flow of the filler metal to the base metal (brazing temperature due to materials vary).
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High degree of mechatronics. On the basis of improving the accuracy of temperature measurement and control, workpiece movement, air pressure adjustment, power adjustment, etc. can be programmed in advance, and quenching and tempering can be implemented in steps
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In order to prevent the deformation of the furnace shell and the deterioration of the sealing material after heating, the furnace shell is generally cooled by water or air. The furnace is located in a sealed furnace shell. According to the purpose of the furnace, different types of heating elements are installed inside the furnace, such as resistance, induction coil, electrode and electron gun, etc.
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is a direct subsidiary of Wuxi Sifang Group Co., Ltd, which is one of the key vacuum furnace manufacturer specializing in designing and manufacturing a variety of vacuum furnaces. ‘Sifang’ is the registered trademark of company product. The company always insists on the working attitude of ‘Specialty and Dedication’ . Continually improves the technical value and the innovation development of products, it has formed 40 types of vacuum furnaces such as vacuum heat treatment furnace, vacuum quenching furnace, vacuum tempering furnace, vacuum annealing furnace, vacuum aluminum brazing furnace, vacuum high temperature brazing furnace, vacuum hot pressing diffusion welding furnace, vacuum sintering furnace. These products are widely used in some industries and departments such as aviation, aerospace, military, railway, automobile, mechanism, mold, electron and scientific research.
The company has a professional vacuum industrial furnace design and manufacturing team, and maintains close cooperative relations with domestic and foreign scientific research institutes, colleges and universities.
At present, several series of vacuum quenching furnaces, vacuum tempering furnaces, vacuum annealing furnaces, vacuum brazing furnaces, vacuum sintering furnaces and more than 40 varieties have been formed.
The company has accumulated many years of experience in R&D and manufacturing of vacuum industrial furnaces, and has formed a complete product research and development, production, sales and service system.
Faults that occur within the province will be dispatched within 12 hours; faults that occur outside the province will be dispatched within 24 hours.
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