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Novel electromagnetic centrifugal casting process and equipment for furnace tube

A furnace tube process and centrifugal casting technology, applied in the field of centrifugal casting, can solve the problems of limited cooling capacity of chrome-molybdenum steel molds, the type of liquid metal crystallization mode cannot reach the best ideal state, and the performance and service life of furnace tubes are affected.

Inactive Publication Date: 2010-12-22
ZUORAN JINGJIANG EQUIP MFG +2
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Problems solved by technology

At the same time, due to the limited cooling capacity of the chrome-molybdenum steel cylinder, the crystallization method and crystal type of the molten metal cannot reach the best ideal state, which affects the performance and service life of the furnace tube

Method used

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  • Novel electromagnetic centrifugal casting process and equipment for furnace tube
  • Novel electromagnetic centrifugal casting process and equipment for furnace tube
  • Novel electromagnetic centrifugal casting process and equipment for furnace tube

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Embodiment Construction

[0009] The following is an analysis of the production and operation of the new furnace tube electromagnetic centrifugal casting process and equipment:

[0010] 1 Fabrication of magnetic field generator

[0011] According to actual needs, a magnetic field with a size of 5m*0.3m*1m needs to be generated in a space with a width of 1 meter left and right centered on the molded cylinder 2 . The magnetic field generator uses excitation coils in parallel to make large-scale magnetic poles, forming a single magnetic pole 1 on both sides of the molded cylinder, and adding a heat-insulating cooling layer 4 between the magnetic poles and the molded cylinder, and the magnetic field strength is adjusted by the excitation voltage.

[0012] Because the wall thickness of the cylinder used in centrifugal casting is relatively large, and it is in a high temperature state during operation. Therefore, the production of the magnetic field generator fully considers the working conditions of the ce...

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Abstract

The invention discloses a novel electromagnetic centrifugal casting process and equipment for a furnace tube. The furnace tube of the conventional industrial furnace is mainly prepared by adopting a centrifugal casting process, so a serious macrosegregation phenomenon occurs in the production process. At the same time, the crystallization mode of metal liquid and the varieties of crystals cannot reach the optimum state, so the properties of the furnace tube are influenced. The invention aims to provide the electromagnetic centrifugal casting process and equipment, which can overcome the defects, eliminate the segregation phenomenon of alloy elements and improve the properties of the furnace tube. The process is mainly implemented by a magnetic field generator and centrifugal casting equipment. Metal elements of the metal liquid are subjected to a Lorentz force in an electromagnetic field to perform fracturing movement, locomotory movement and the like so as to contribute to the reasonable and uniform tendency of the crystallization mode, the varieties of the crystals and alloy distribution of the metal liquid in the furnace tube, so that the using property of the furnace tube is improved, the service life of the furnace tube is prolonged, the technological level of manufacturing the furnace tube is improved, blanks and labor are saved and the like.

Description

technical field [0001] The novel electromagnetic centrifugal casting furnace tube technology and equipment of the present invention belong to the field of centrifugal casting. Background technique [0002] At present, the furnace tubes of industrial furnaces mainly adopt centrifugal casting, and the casting cylinders are mainly water-cooled metal cylinders. In the mold cylinder, it is cooled and formed under the action of centrifugal force. In the production process, due to the density difference of different alloy elements in the molten metal, serious macro-segregation phenomenon occurs during the cooling process under the action of centrifugal force. At the same time, due to the limited cooling capacity of the chrome-molybdenum steel cylinder, the crystallization method and crystal type of the molten metal cannot reach the best ideal state, which affects the performance and service life of the furnace tube. Contents of the invention [0003] The purpose of the present ...

Claims

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Application Information

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IPC IPC(8): B22D13/02
Inventor 马利平展益彬马利峰毛凯田
Owner ZUORAN JINGJIANG EQUIP MFG
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