Stirring type vacuum fine crystal casting furnace and application method thereof
A casting furnace and fine-grain technology, which is applied in the field of fine-grain casting production equipment in the aviation industry, can solve the problems of poor dynamic stability of the equipment, low overall reliability, and low production efficiency, and achieve improved dynamic stability and equipment movement stability performance and overall reliability, high production efficiency
Pending Publication Date: 2019-05-07
SHENYANG VACUUM TECH INST
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Problems solved by technology
[0003] The existing vacuum fine-grain casting furnace still has problems such as low production efficiency, poor dynamic stability of equipment, and low overall reliability.
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[0028] As shown in the figure, the agitated vacuum fine-grain casting furnace includes an upper furnace chamber 1, a lower furnace chamber 2, an upper furnace chamber vacuum system 8 and a lower furnace chamber vacuum system 9; the upper furnace chamber 1 is fixedly placed in the lower furnace chamber 2 above; the cavity of the lower furnace chamber 2 communicates with the cavity of the upper furnace chamber 1 through the isolation valve 4; the working ports of the upper furnace chamber vacuum system 8 and the lower furnace chamber vacuum system 9 are respectively connected to the upper furnace chamber 1 and The working ports of the lower furnace chamber 2 are connected; a mold shell heater 3 and a mold shell temperature measuring device 10 are arranged in the upper furnace chamber 1; a melting coil 5 and a mold shell stirring mechanism are arranged in the lower furnace chamber 2 6 and the formwork lifting mechanism 7; the formwork agitation mechanism 6 is fixedly arranged in t...
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The invention belongs to the field of production equipment of fine crystal castings in aviation industry and in particular relates to a stirring type vacuum fine crystal casting furnace and an application method thereof. The stirring type vacuum fine crystal casting furnace comprises an upper furnace room (1), a lower furnace room (2), an upper furnace room vacuum system (8) and a lower furnace room vacuum system (9). A mold shell heater (3) and a mold shell temperature measuring device (10) are arranged in the upper furnace room (1); a smelting coil (5), a mold shell stirring mechanism (6) and a mold shell lifting mechanism (7) are arranged in the lower furnace room (2); the mold shell stirring mechanism (6) is fixed in the center area of the bottom of the lower furnace room (2) and comprises a mold shell stirring driving unit (11) and an annular stirring tray (601); a mold shell lifting plate (701) is fixedly arranged on the top of the mold shell lifting mechanism (7); and a mold shell (14) is arranged on the mold shell lifting plate (701). The stirring type vacuum fine crystal casting furnace provided by the invention is high in production efficiency, good in dynamic stability,high in integral reliability and easy to maintain.
Description
technical field [0001] The invention belongs to the field of fine-grain casting production equipment in the aviation industry, and in particular relates to a stirring vacuum fine-grain casting furnace and a using method thereof. It is mainly used in the production of high-temperature alloy fine-grained castings required by aerospace and related industries. Background technique [0002] The main purpose of fine grain casting is to improve the low cycle fatigue performance of castings. Using high mold shell temperature and pouring temperature, the agitation of the mold mechanically breaks the casting grains to obtain equiaxed fine-grained castings, and the castings have high purity. This technology is mainly used in key parts such as aerospace engines. The equipment generally adopts a vertical structure, and the furnace body is placed on the working platform. The mold lifting mechanism is placed in the pit, and the vacuum system is placed on the working ground. In order to...
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IPC IPC(8): B22D18/06B22D27/20
Inventor 宋静思赵帅陈久强张哲魁
Owner SHENYANG VACUUM TECH INST