Manipulation of the TCR in metals.2

Charly Garcia, September 29, 2022

TCR manipulation in metals. 2

In the first part of the thermal treatment process of the metal sheet, this process was described extensively based on the work carried out previously.

TCR manipulation in metals. 1

https://telegra.ph/Manipulation-of-the-TCR-in-metals1-10-03

The second part describes in more detail the processes and equipment used.

We first represent the graph of temperature versus time obtained in

Manipulación del TCR en metales. 1 ,

System description.

Before explaining the processes to be carried out, we will describe some parts of the system. The following drawing reflects some of the parts of the system, it is formed by Box 1, which contains the heating resistors to bring the temperature of the oven to a temperature of 429.4 ℃, inside Box 1 the bronze envelope is inserted with the metallic foil. be a heat treatment. Below and covering Box 1 is Box 2, whose function is to cool the system according to the program, Box 2 is surrounded by a pipe that can conduct air or water. Below is the external box M1, that surrounds the entire system and functions as a chamber where a vacuum must be made, between 10^-2 and 10^-4 [Torr], the cover must be stabilized at room temperature, by means of a tube that covers it.

The Hamilton company supplies the metal foil,

From a roll of metal foil, the following is a photo of Hamilton company,

the metal foil , must first be cut to the approximate dimensions listed below, the metal foil must be cleaned beforehand. [1]

It is necessary to clarify that the metal foil before being thermally treated, must go through a cleaning procedure, called alkali electrolytic cleaning process, in order to remove the metal foil oil, particles and dust,

Bibliography.

[1] https://www.youtube.com/watch?v=R3PJgbXtJ7U