What is the first step in the procedure for adding metal fibers during lining installation?

The first step in the procedure for adding metal fibers during lining installation involves loading castable into the mixer and pre-mixing. This step is crucial because it ensures that the castable material is in a suitable state to receive the additional fibers. Pre-mixing helps to create a uniform mixture, which is essential to achieve the desired properties of the final lining material.

When the castable is properly pre-mixed, it allows for better distribution of the metal fibers when they are added later in the process. This uniform distribution is critical for the overall performance of the refractory lining since it enhances properties such as strength, durability, and resistance to thermal shock.

Following this initial step, other processes like adding fibers, water, or using a dispersing device can be effectively carried out, but they rely on the initial quality of the castable after pre-mixing. Thus, starting with this foundational step sets the stage for a successful installation.