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Design method of a general heat treatment tray for head forgings

A design method and technology for forgings, applied in heat treatment equipment, heat treatment furnaces, furnaces, etc., can solve the problems of high cost and long cycle, and achieve the effect of saving cost and shortening the manufacturing cycle.

Active Publication Date: 2020-09-01
SHANGHAI ELECTRIC SHMP CASTING & FORGING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a design method for a universal heat treatment tray for head forgings, which can solve the problems of high cost and long period of the prior art

Method used

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  • Design method of a general heat treatment tray for head forgings
  • Design method of a general heat treatment tray for head forgings
  • Design method of a general heat treatment tray for head forgings

Examples

Experimental program
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Embodiment 1

[0032] like figure 1 shown, figure 1 It is a flow chart of a design method of a general heat treatment tray for head forgings in an embodiment of the present invention. In an embodiment of the present invention, a design method for a universal heat treatment tray for a head forging, the design method includes the following steps:

[0033] In step S101, the head forgings are classified according to the diameter of the head forgings, and the head forgings with similar diameters are classified into one category, and a general heat treatment tray is designed;

[0034] Step S102, determining the diameter of the support ring of the heat treatment tray according to the basic size of a class of head forgings with similar diameters, and then designing the support ring;

[0035] Step S103, according to the overall shape characteristics and spherical radius of the head forging, determine the position of the support point;

[0036] Step S104, design the support insert according to the ...

Embodiment 2

[0050] like Figure 2-9 shown, as Figures 2 to 3 shown is a schematic diagram of a general heat treatment tray for a head forging and a support ring structure of the tray in the embodiment of the present invention. The heat treatment tray is taken as an example to illustrate. The shared support ring 1 of the spherical head forging and the ellipsoidal head forging involved in this design method weighs about 36.97 tons.

[0051] Figure 4 It is a schematic structural diagram of the ball head forging before heat treatment, which is one of the examples in the embodiment of the present invention, Figure 5 It is a schematic diagram of the support insert structure of a general heat treatment tray for head forgings in the embodiment of the present invention, which is a special support insert I2 for ball head forgings 3, with a weight of about 0.53 tons / piece, a total of 8 pieces, and a total weight of about 4.24 It accounts for 10% of the total weight of the ball head heat treatm...

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Abstract

The invention relates to the manufacturing industry of mechanical equipment, and discloses a design method of a universal heat treatment tray for sealing head forged pieces. The design method comprises the following steps that the sealing head forged pieces are classified according to the calibers of the sealing head forged pieces, and the sealing head forged pieces with the similar calibers are classified into the same class; according to the basic size of one class of sealing head forged pieces with the similar calibers, the diameter of a supporting rind of the heat treatment tray is determined, and the supporting ring is designed; the position of a supporting point is determined according to the overall shape characteristic and the spherical radius of the sealing head forged pieces; according to the position of the supporting point, the spherical radius of the sealing head forged pieces and the diameter and shape of the supporting ring, supporting inserts are designed; and after a body supporting ring and the supporting inserts of the heat treatment tray are designed, the bearing capacity of the heat treatment tray is analyzed, and the structure weak spot is optimized accordingto the analysis result. According to the design method of the universal heat treatment tray for the sealing head forged pieces, the designed tray can meet the use requirements of the sealing head forged pieces with the similar open sizes, cost is greatly saved, and meanwhile the manufacturing period can be shortened.

Description

technical field [0001] The invention relates to the machinery equipment manufacturing industry, in particular to a design method of a general heat treatment tray for head forgings. Background technique [0002] With the rapid development of the national economy, heavy machinery and equipment manufacturing and energy development and utilization have continuously increased the manufacturing capacity of large castings and forgings. At the same time, in order to improve the service life of the equipment, the degree of integration of forgings for key main components is also increasing. Among them, the typical ball head forgings, such as the integrated lower head forgings for the main equipment of nuclear power plants and nuclear islands, are integrated with the originally designed lower head forgings and the transition section of the lower head forgings. Typical ellipsoid head forgings, such as ellipsoid head forgings for steam generators for nuclear island main equipment in nuc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/00C21D1/62
CPCC21D1/62C21D9/0025C21D9/0068
Inventor 李守江王晓芳游佳迪程莉
Owner SHANGHAI ELECTRIC SHMP CASTING & FORGING CO LTD