Temperature measuring equipment used for measuring temperature in airtight casting container
A temperature measurement device and internal temperature technology, which is applied to measurement devices, electrical devices, thermometers, etc., can solve the problems of inability to obtain the internal temperature data of metal or casting molds, inability to install temperature measurement systems, and easy damage of temperature measurement systems. Achieve significant use effects, improve product quality, and improve measurement accuracy
Inactive Publication Date: 2012-08-15
TSINGHUA UNIV
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[0003] In order to obtain the information of the temperature field change during the casting process, an optical infrared temperature measuring instrument can generally be used to measure the temperature through the casting container window. Although this method is simple, it is easily affected by the emissivity of the object, the measurement distance, smoke and moisture during the measurement operation. Influenced by external factors, the measurement error is large, and the disadvantage of infrared temperature measurement is that it can only
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[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0028] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying Describes, but does not indicate or imply that the device or element referred...
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The invention discloses temperature measuring equipment used for measuring temperature in an airtight casting container. The temperature measuring equipment comprises a thermocouple, a data acquisition recorder and a protector, wherein the thermocouple is provided with two heated electrodes and a temperature measuring end which is connected between the two heated electrodes and is used for measuring temperature; the data acquisition recorder is respectively connected with the two heated electrodes of the thermocouple and can collect and record the measured temperature; and the data acquisition recorder is arranged in the protector. According to the embodiment of the invention, the temperature measuring equipment can carry out tracking measurement on the variation of the temperature of a metal liquid and /or casting mould in the airtight casting container and record the same in the data acquisition recorder, the measuring accuracy is good, and the sensitivity is high; and the installation is simple and convenient, the measured data is analyzed so as to improve the casting process after casting is finished, and the product quality is improved.
Description
technical field [0001] The invention relates to the field of temperature measurement, in particular to a temperature measuring device for measuring the temperature in a closed casting container. Background technique [0002] In the casting process, for alloys that are easily oxidized, vacuum melting and casting are often used, and the casting process is carried out in a closed vacuum furnace. For those that need to control the casting environment, pressure or solidification process during the casting process, pressure vessels are also used for casting. During the casting process, the mold is placed in a sealed casting container, which makes it extremely inconvenient to collect the temperature during the process, and mastering the temperature change during the process is of great significance for the control of the casting process. [0003] In order to obtain the information of the temperature field change during the casting process, an optical infrared temperature measuring...
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Inventor 吕志刚张贺
Owner TSINGHUA UNIV