Large vacuum annealing furnace

A vacuum annealing furnace, a large-scale technology, applied in the direction of furnace, furnace type, lighting and heating equipment, etc., can solve the problems of affecting the annealing production efficiency and quality, not all of the process requirements, difficult to drive in and out of the furnace, etc. Crystal structure and mechanical properties, significant economic and social benefits, and the effect of improving the quality of annealing production

Active Publication Date: 2011-01-26
GRIMAT ENG INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 2. The feeding mechanism is mostly an integral material rack, which is prone to large deformation when heated, which makes it difficult to drive in and out of the furnace body and does not meet the ideal material level requirements when feeding
And i

Method used

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Example Embodiment

[0040] Refer to figure 1 , figure 2 with image 3 As shown, the large-scale vacuum annealing furnace of the present invention adopts a single-chamber, internally heated horizontal structure, and consists of a furnace body 1, a heating device 2, a feeding system 3, a vacuum system 4, a cooling system 5 and an electric control system.

[0041] The furnace body 1 includes a shell, a heating chamber, a front furnace door, and a rear furnace door. The furnace body can be a horizontal cylindrical double-layer water-cooled structure. Open the door front and back, and load the front door. The opening and closing of the furnace door can adopt the cylinder push-pull structure to automatically open and close. A rubber sealing ring is used between the furnace door and the furnace body flange to meet the requirements of high vacuum sealing, and the sealing is stable and reliable. It is also equipped with a gas filling interface and valve, a bleed valve, a standard temperature interface, an...

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Abstract

The invention discloses a large vacuum annealing furnace which is composed of a furnace body, a heating device, a feeding system, a vacuum system, a cooling system and an electric control system, wherein the heating device is arranged in a furnace pipe; the feeding mechanism comprises a feeding trolley, a trailer wagon, a rack and a guide rail along which the rack moves back and forth; the feeding trolley moves back and forth along a steel rail laid in front of a furnace door under the action of a travelling mechanism; the rack travels on the guide rail by a roller row which is composed of a plurality of parallel rollers, and each roller is connected with a roller row frame by a shaft; the vacuum system is used for maintaining the vacuum degree of each annealing stage in the furnace body; the cooling system at least comprises a cooling water system for cooling each group of heaters; the heating device is composed of a plurality of heaters which are mutually and movably connected, and the heaters are installed in the furnace pipe in order; multiple layers of heat shields are arranged between each group of heaters and the inner wall of the furnace pipe; and the a guide rail along which a feeding rack moves back and forth is provided with a group of dismountable sectioned racks which are movably connected.

Description

technical field [0001] The invention belongs to heat treatment equipment, in particular to a large-scale vacuum annealing furnace for rare metals such as titanium and zirconium. Background technique [0002] Annealing is a process of heating metal materials or workpieces to a certain temperature according to the process requirements, keeping them warm for a period of time, and then cooling according to an appropriate speed to change the metal structure and properties (change the grain structure, refine the structure, eliminate stress and soften the material). A metal heat treatment process. The purpose is to soften metal materials or workpieces that have been cast, forged, welded or cut, improve plasticity and toughness, homogenize their chemical composition, remove internal residual stress, give full play to the potential of metal materials, meet user requirements, and extend metal materials. service life. [0003] Vacuum annealing is the only process used in domestic and...

Claims

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Application Information

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IPC IPC(8): C21D1/26C21D1/74F27B9/04F27B9/26
Inventor 尹中荣李全旺郑杰王征张睿王轩戴天舒李勍孙照富张延宾
Owner GRIMAT ENG INST CO LTD
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