Device used for measuring sample temperature in procedure of metal material surface nanometre

Abstract

The present invention is a sampling temperature measuring device in the nanometer process of the surface made of metal, and said device includes a sampling card and a temperature measuring part. Wherein the sampling card containing a top board, a lateral board, a bottom board, a pressure board, a puller bolt, a countersunk head bolt; the lateral board is fixed with the top board; the bottom board is fixed with the lateral board through the countersunk head bolt; the top board is connected with the pressure board through the puller bolt; the sampling where the pressure board is positioned is positioned on the bottom board and is fixed and pressed by the pressure board through puller bolt. The temperature measuring part includes a thermocouple and a temperature recording meter; the probe head of the thermocouple is fixed on the part of the sampling where the card is inserted; the temperature recording meter is positioned on the outside of side part; the thermocouple and the temperature recording meter are connected through a lead; the number of the thermocouple can be one or two. The device in the present invention can be inserted with cards made of block shaped metal with different thickness and real temperature change in the strong plastic deformation process of the integral of the metal material or the nanometer surface can be measured and recorded. Thus, the device in the present invention is favorable for the controlling of the temperature.

Description

technical field [0001] The invention relates to a temperature measuring device, in particular to a device for measuring the temperature of a sample in the nanometerization process of the surface of a metal material. It belongs to the technical field of metal materials. Background technique [0002] When the grain size of metal materials is reduced to the nanometer level (less than 100nm), they have unique mechanical, physical, chemical and other properties. At present, the most commonly used method to make the surface of metal materials nanometer is surface mechanical grinding. However, during the process of nanonization of metal materials undergoing strong plastic deformation, the temperature of the material will increase, especially at the surface of the material. In the process of strong plastic deformation of metal materials, the movement and recovery of dislocations are closely related to temperature, which is a process of thermal equilibrium. Therefore, the role of ...

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Problems solved by technology

[0003] After investigation, it was found that Chengdu New Crystal Technology Co., Ltd. produced a SNC-I type metal material surface nanometerization testing machine. In this testing machine, the clamping method used is to place the sample on a fixed Place the mask on the sample stage, and connect the mask to the sample stage through bolts to fix the sample. The temperature measurement method is to fix the probe of the thermocouple in the gap on the sample stage, and measure it by the thermometer. The temperature obtained by measuring in t

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