Mould shell for temperature measurement and manufacturing method thereof
A manufacturing method and technology for temperature measurement, which are applied in the field of investment precision casting, and can solve the problems that vacuum furnace cannot be used for temperature measurement.
Inactive Publication Date: 2018-04-06
AECC AVIATION POWER CO LTD
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Problems solved by technology
However, due to the limitation of space and working environment, this method cannot be applied to vacuum furnace temperature measurement
Method used
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Embodiment 1
[0036] Embodiment 1: A manufacturing method of a high-pressure turbine working blade temperature-measuring formwork includes the following steps:
[0037] Step 1. Design 16 temperature measuring holes according to the casting combination diagram, including 4 on the leaf back and 12 on the leaf basin. These 16 temperature measuring holes are evenly arranged on the leaf back or the leaf basin;
[0038] Step 2, making the wax pattern module, the shape of the wax pattern module is the same as the shape and size of the casting;
[0039] Step 3. Prepare a wax stick. The diameter of the wax stick is 4mm, the length is 10mm, and the diameter of the thermocouple ceramic protection tube is 3.5mm.
[0040] Step 4. Carry out shell making on the wax pattern module according to the conventional investment casting process, and suspend shell making when the shell making process reaches 3 layers, that is, half of the total number of layers.
[0041] Step 5. According to the designed position ...
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Abstract
The present invention discloses a mould shell for temperature measurement and a manufacturing method thereof. The mould shell for temperature measurement comprises a housing, the housing is provided with a plurality of temperature measurement holes configured to fix a thermocouple with a ceramic tube, the temperature measurement holes are blind holes, the number of the temperature measurement holes is larger than or equal to the number of channels of a temperature collection instrument, and the temperature measurement holes are uniformly arranged on the housing. According to the invention, thedesign of temperature measurement points combines a shape of a concrete casting, the mould shell for temperature measurement and the manufacturing method thereof can better reflect a real temperaturestate of the casting in a casting process compared to a traditional temperature measurement rack, and can accurately measure a temperature field and a temperature gradient in a furnace, the obtaineddata is employed to optimize orientation device performances and a casting process scheme, and therefore, the mould shell for temperature measurement and the manufacturing method thereof have an obvious effect on improvement of the device performances and casting quality and are lower in cost than the temperature measurement rack.
Description
technical field [0001] The invention belongs to the technical field of investment precision casting, and in particular relates to a mold shell for temperature measurement and a manufacturing method thereof. Background technique [0002] The uniformity of temperature field and temperature gradient in the furnace are the key parameters of vacuum casting equipment, which directly affect the metallurgy and grain size quality of castings. Accurately measure the temperature field and temperature gradient in the furnace with reference to the specific casting structure. This data is very important for improving equipment, measuring equipment performance, and optimizing casting process plans. At this stage in China, the mold shell is not used to measure the furnace temperature, and most of them use the temperature measuring frame to fix the thermocouple to measure the furnace temperature. The temperature measuring frame needs to be made of a high-temperature-resistant high-temperatu...
Claims
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IPC IPC(8): G01K1/08G01K7/02B22C7/02B22C9/04
CPCG01K1/08G01K7/02B22C7/026B22C9/043
Inventor 董茵常涛岐梁晓锋赵剑恒胡颖涛陈杰商辉王红波
Owner AECC AVIATION POWER CO LTD