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Drawing method for heat treatment process curves

A technology of process curve and heating curve, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of occupying storage space, large amount of graphic data, difficult to improve graphic clarity, etc., to reduce manual labor , the effect of intuitive and effective guidance

Active Publication Date: 2013-07-31
NANJING DEV ADVANCED MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) The curve is approximate, and the heating curve cannot be dynamically changed with different process parameters (heating time, heating temperature, holding time, cooling method)
[0007] (2) Many heating curves are output in the form of bitmaps, the amount of graphic data is large, and a large amount of storage space is occupied
[0008] (3) When the bitmap is enlarged or reduced, the clarity of the graphics is difficult to improve, and the display effect is poor

Method used

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  • Drawing method for heat treatment process curves
  • Drawing method for heat treatment process curves
  • Drawing method for heat treatment process curves

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Embodiment Construction

[0047] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0048] Such as figure 1 As shown, this embodiment includes the following steps:

[0049] (1) Read heat treatment process parameters, each heat treatment process includes M processes, and the parameters of each process include:

[0050] Furnace temperature TN 0 ;

[0051] N times of heating, the heating rate of the nth time is KN n , the heating temperature is TN n , holding time is T n ;

[0052] P times of cooling, the cooling rate of the pth time KP p , cooling temperature TP p ;

[0053] The unit of heating rate is ℃ / min, the unit of temperature is ℃, and the unit of holding time is min;

[0054] (2) ...

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Abstract

The invention discloses a drawing method for heat treatment process curves, which comprises the following steps of: reading heat treatment process parameters; building a drawing coordinate system; calculating the accumulation value Au of the temperature rise time, the accumulation value Ac of the heat insulation time, the accumulation value Ad of the cooling time and the sum Tam of the accumulation value time of the m-th work procedure; calculating a drawing factor Fx on the process curve abscissa; finding out the maximum value TN max of the heating temperature; calculating the drawing factorFy on the process curve ordinate; calculating the coordinate values of each line segment of the heating curve in each work procedure; and drawing a process curve pattern. The line segments are drawn according to point coordinates, a vector diagram is obtained. The vector diagram can be obtained through being calculated by a formula, the file size of the vector diagram is generally small, the vector diagram can not distort when being amplified, reduced or rotated and the like, in addition, the requirement of the heat treatment process can be completely met, the pattern can also be changed in real time when the process parameters are changed, the condition completely conforms the practical process conditions, and the more intuitionistic and effective guide on workers can be realized.

Description

technical field [0001] The invention relates to a method for drawing a process curve, in particular to a method for drawing a heat treatment process curve. Background technique [0002] CAPP (Computer Aided Process Planning) computer-aided process design is to formulate, display and output heat treatment process regulations by means of computer software and hardware technology and supporting environment, performing numerical calculation, logical judgment and reasoning, drawing graphics and text and other functions. The effective application of the CAPP system can solve the problems of low efficiency, poor consistency, unstable quality, and difficult optimization of manual process design. [0003] The heating curve of heat treatment is an important content in the CAPP process card. It clearly, completely and intuitively describes the process parameters in the heat treatment process of parts, and is used to guide the on-site heat treatment staff to control the heating temperat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 周伯荣史翔杨清林张利王洁
Owner NANJING DEV ADVANCED MFG
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