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A method for dividing the heat treatment stages of a vertical quenching furnace

A quenching furnace and stage technology, applied in the field of heat treatment, can solve the problems of lack of quantitative analysis

Active Publication Date: 2017-05-24
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0007] The technical problem to be solved in the present invention is that the heat treatment stage division method of quenching furnace relying on manual experience lacks the problem of reasonable quantitative analysis

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  • A method for dividing the heat treatment stages of a vertical quenching furnace
  • A method for dividing the heat treatment stages of a vertical quenching furnace
  • A method for dividing the heat treatment stages of a vertical quenching furnace

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Embodiment Construction

[0070] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

[0071] In the description of the present invention, it should be noted that, unless otherwise specified, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inside" ", "outside", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present invention and The description is simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the inven...

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Abstract

The invention relates to the field of heat treatment, in particular to a partitioning method for heat treatment stages of a vertical quenching furnace. According to the partitioning method for the heating stages in the furnace in the heat treatment process of an aluminum alloy forge piece of the vertical quenching furnace, a vertical quenching furnace component temperature field predicating model is established for calculating the convection heat and the radiation heat on the surface of a component; on the basis, a mechanism model for evolution of the convection heat exchange amount and the radiation heat exchange mount in the quenching furnace is further established and used for obtaining the quantitative evolution condition between the convection heat exchange amount and the radiation heat exchange amount in real time; and based on the principle that two times of differences exist between the convection heat exchange amount and the radiation heat exchange amount, the heat treatment stages of the quenching furnace are quantitatively divided into the temperature rising stage, the transition stage and the heat insulation stage. According to the partitioning method, quantitative partitioning on all the stages in the heat treatment process of large aluminum alloy components of the vertical quenching furnace is successively achieved, and a series of problems of local temperature overshooting and the like generated in the process of conversion from the temperature rising stage to the heat insulation stage of the quenching furnace can be effectively solved.

Description

technical field [0001] The invention relates to the field of heat treatment, in particular to a method for dividing heat treatment stages of a vertical quenching furnace. Background technique [0002] High-strength aluminum alloy die castings are an important part of aerospace vehicles such as aircraft beams, keels, rockets, missile end rings, and engine blocks. The large-scale vertical quenching furnace of its smelting device is a typical periodic heating furnace used to produce high-strength aluminum alloy components. The aluminum alloy is subjected to solid solution quenching heat treatment to improve its hardness, strength, wear resistance, and corrosion resistance. and other mechanical properties. The key to quenching heat treatment lies in the temperature uniformity control of the temperature field of aluminum alloy components. [0003] The core of temperature uniformity control is to establish a control model that conforms to the characteristics of the temperature f...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D1/62C21D9/00C21D11/00
Inventor 贺建军沈玲桂卫华喻寿益
Owner CENT SOUTH UNIV
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