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Die-casting mold multi-point precise temperature control system and method

A technology of die-casting mold and temperature control system, which is applied in the field of temperature control system, can solve the problems of time delay in thermocouple temperature measurement and the inability of data to respond to temperature quickly and accurately, so as to prevent overheating or undercooling and reduce the probability of scrap products , to achieve the effect of real-time control

Inactive Publication Date: 2010-08-11
TSINGHUA UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

This temperature control method is relatively simple. The temperature detection device of the mold usually has only one thermocouple, which can only detect the temperature at a certain position of the mold.
And there is a time delay in thermocouple temperature measurement, and its unprocessed data cannot quickly and accurately reflect the temperature near the surface of the mold cavity

Method used

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  • Die-casting mold multi-point precise temperature control system and method
  • Die-casting mold multi-point precise temperature control system and method
  • Die-casting mold multi-point precise temperature control system and method

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] Such as figure 1 , figure 2 As shown, the temperature control system of the present invention includes a plurality of temperature detection devices 2 embedded in the mold 1, each temperature detection device 2 is connected to an analog input module 4 through a compensation wire 3, and the analog input module 4 is connected to a The central processing unit 5 is connected to a man-machine interface 6 and a mold temperature machine 7 respectively. The mold temperature controller 7 is provided with two oil inlet pipes 8 and two oil outlet pipes 9 (this is just an example, not limited to this). circulation pipes.

[0022] Such as Figure 3-5 As shown, the temperature detection device 2 includes a temperature measurement auxiliary element 11 , a thermocouple 12 and an infrared pyrometer 13 . The temperature measurement auxiliary element 11 incl...

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Abstract

The invention relates to a die-casting mold multi-point precise temperature control system and a method. The invention is characterized in that the system comprises a plurality of temperature detectors which are embedded in a mold, each temperature detector is repetitively connected with an analog quantity input module through a compensating lead wire, the analog quantity input modules are connected with a central processing unit, the central processing unit is respectively connected with a human-machine interaction interface and a mold temperature controller, a plurality of oil inlet pipes and a plurality of oil outlet pipes are arranged on the mold temperature controller, and the oil inlet pipes and the oil outlet pipes are respectively communicated with a plurality of flow passages arranged on the mold for forming a cyclic circulation pipeline. The invention has ingenious structural design, can improve the repeatability of the mold temperature control in the die-casting process, can improve the production efficiency, and can be widely used in the temperature control process of the die casting production.

Description

technical field [0001] The invention relates to a temperature control system and method in the die-casting production process, in particular to a multi-point precise temperature control system and method for a die-casting mold. Background technique [0002] At present, die casting is a special casting method with less cutting and no cutting that develops rapidly in modern metal processing technology. It is a process in which molten metal is filled into a mold under high pressure and high speed, and crystallized and solidified under high pressure to form a casting. High pressure and high speed are the main characteristics of die casting. The commonly used pressure is tens of MPa, the filling speed (ingate speed) is about 16-80 m / s, and the time for the molten metal to fill the mold cavity is extremely short, about 0.01- 0.2 seconds. Since casting castings by this method has the advantages of high production efficiency, simple process, high tolerance level of castings, good s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D17/22
Inventor 李培杰李振华何良菊
Owner TSINGHUA UNIV
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