Thermocouple welding device

Abstract

The invention discloses a thermocouple welding device which comprises a base. The thermocouple welding device is characterized by further comprising a first clamping sheet and a second clamping sheet which are arranged on the base; the first clamping sheet and the second clamping sheet are used for clamping and fixing a thermocouple wire and a clamping opening of the first clamping sheet and a clamping opening of the second clamping sheet are adjacent and opposite; and both the first clamping sheet and the second clamping sheet are made of an electric conductor material, the first clamping sheet is connected with the positive electrode of a direct-current arc welding machine, and the second clamping sheet is connected with the negative sheet of the direct-current arc welding machine. The thermocouple welding device has the beneficial effects that the structure is simple and reasonable, a thermocouple manufactured through the thermocouple welding device is linear, and the shape of the thermocouple can be changed according to different requirements so as to meet the requirements of different use conditions for the shape of the thermocouple. A welding point of the manufactured thermocouple is extremely small and influences caused by heat conduction errors and dynamic response errors are reduced; and in the welding process, the welding point of the thermocouple wire does not make contact with other materials, and the possibility that the welding point of the thermocouple is contaminated by the other materials is eliminated.

Description

technical field [0001] The invention relates to the field of thermocouple manufacturing devices, in particular to a thermocouple welding device. Background technique [0002] Temperature is a basic physical quantity, which is the most commonly used and most important process parameter in physical and chemical processes. For industries such as material preparation and metallurgy, it is of great significance to accurately measure temperature. Because thermocouples have the advantages of simple structure, high accuracy, convenient use, suitable for long-distance measurement and automatic control, etc., they are widely used. In order to measure temperature accurately, it is particularly important to make thermocouples with excellent performance. [0003] The principle of thermocouple temperature measurement is to connect two different conductor materials together to form a closed loop. When the temperature of the two junctions is different, an electromotive force will be gener...

AI Technical Summary

Problems solved by technology

[0004] At present, the existing thermocouple welding methods are mainly: 1) DC arc welding, although the method is simple and easy to operate, but the graphite electrodes used in welding are easy to contaminate the thermocouple; 2) Salt water welding, simple equipment, convenient operation, and no pollution ;3) Mercury welding, although the welding quality is good, it is not suitable for use due to mercury hazards

However, the two electrodes of the thermocouple wire obtained by these methods are arranged side by side (such as image 3 As shown), it cannot be made into different shapes according to needs to meet the needs of different conditions

Images