辊子修复

How is the welding porosity formed in the surfacing flux of the roll with the roller protected?

Date:2019-05-30 Author: Click:

We all know that. The surfacing flux for repairing roller is made by mixing and firing several raw ores. Then why are there some products


When sintering flux is used for welding, there are frequent blowholes, that is, the combination of several mine ores is not scientific enough, strengthen pelletizing, improve the permeability of material layer, improve the vertical sintering speed and the utilization coefficient of sintering machine. To change this situation, we have to start from the following aspects.


It can improve the reactivity and combustion efficiency of sintering fuel and reduce the consumption of FeO and solid fuel.


The oxidation atmosphere of combustion zone is enhanced to promote low temperature sintering of thick layer.


In order to increase the content of calcium ferrite in the binder phase, improve the metallurgical properties of sinter, and promote the increase of iron and coke in blast furnace.


The average content of composite acicular calcium ferrite in sinter is increased by more than 8%, the average reduction degree (RI) is increased by more than 6%, and RDI and high temperature softening properties are improved obviously.


Based on the theory of low temperature sintering and mineral crystallization, the roller surfacing flux is a professional front-end technology for increasing iron and saving coke in blast furnace.


Roller specification


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