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Hardness plug temperature measuring method

A hardness plug, hardness technology, applied in the field of hardness plug temperature measurement, can solve the problem of not reflecting the temperature change of the object to be measured, and achieve the effect of accurate reflection, true and accurate results, and avoidance of interference

Inactive Publication Date: 2020-11-10
DONGFENG COMML VEHICLE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problem that the existing measurement method mentioned in the above-mentioned background technology cannot reflect the internal temperature change of the object to be measured, and provide a method for measuring the temperature of the hardness plug

Method used

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] In this embodiment, an engine flywheel of a heavy truck is used as the object 1 to be tested, and a hardness plug 4 is drilled on the working surface of the object 1 to be tested. The method for making the hardness plug 4 of the present embodiment is as follows:

[0035] First, select GCr15 steel as the material for preparing the hardness plug 4, process it into a hardness plug 4 of M3×0.5×4, and use it for later use after complete quenching. fire, measure the hardness of the hardness plug 4, and make a corresponding relationship diagram between the hardness of the hardness plug 4 and the tempering temperature, and the fitting can obtain the tempering temperature-hardness linear equation of the hardness plug 4 used as:

[0036] T=-1.0585X+943.01

[0037] Among them, T is the tempering temperature of hardness plug 4, the unit ...

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Abstract

The invention relates to the technical field of temperature measurement, in particular to a hardness plug temperature measurement method. The method comprises the following steps: 1) preparing a hardness plug; 2) drilling a hole in the surface of a disc-shaped to-be-measured object; 3) installing the hardness plug into a drill hole of the to-be-measured object; 4) performing a simulation experiment on the to-be-measured object, taking out the hardness plug after the experiment is completed, and measuring the hardness of the hardness plug to obtain the temperature distribution of the to-be-measured object during working, wherein the surface drill holes of the to-be-measured object are divided into surface groups and internal groups, the surface drill holes are drill holes extending into theto-be-measured object along the axial direction of the to-be-measured object, and the depths of the adjacent surface drill holes are the same; the internal drill holes extend into the to-be-measuredobject along the axial direction of the to-be-measured object, and the depths of the adjacent internal drill holes are different. The measuring method is extremely simple, can reflect the temperaturedistribution condition inside the to-be-measured object and the temperature distribution condition of the working surface more accurately compared with the prior art, is more accurate in measuring mode, and has great popularization value.

Description

technical field [0001] The invention relates to the technical field of temperature measurement, in particular to a hardness plug temperature measurement method. Background technique [0002] One side of the engine flywheel of a heavy-duty truck is connected to the crankshaft, and the other side is in contact with the clutch driven disc. During the process of vehicle starting and continuous operation, the temperature of the engine flywheel will continue to rise under the action of friction, and gradually reach the highest temperature in a short period of time during the working process. , by measuring the maximum temperature distribution of the engine flywheel, we can understand the uniformity of the temperature distribution of the engine flywheel in the working process to evaluate the deformation of the flywheel at high temperature and the change of the clutch pressing force, etc., and also directly evaluate whether the engine flywheel is heated during the working process. a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K13/08G01K1/14
CPCG01K1/14G01K13/08
Inventor 张芳冯继军黎长坤张鑫明李显戴曾文林
Owner DONGFENG COMML VEHICLE CO LTD
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