Automatic submerged arc welding agent and preparation method thereof

Abstract

The invention discloses a preparation method of an automatic submerged arc welding agent. The method comprises the following steps of: taking industrial waste residues as raw materials and setting chemical composition content of smelting high-temperature granulated slag and manganese ore; mixing the two materials to form a raw material containing 15-21 percent of MnO and calculating the using amounts of the two raw materials; detecting the chemical compositions of the two raw materials; adding each chemical raw material to meet the requirement of each chemical composition content; fully stirring and uniformly mixing; pouring into an electric furnace for smelting; performing water quenching and granulating; drying; and screening to obtain products, wherein the chemical composition comprises 26-32 percent of SiO2, 17-29 percent of CaO, 15-22 percent of MnO, 9-16 percent of Al2O3, 8-19 percent of CaF2, 1-5 percent of TiO2, less than or equal to 2 percent of FeO, less than or equal to 0.04 percent of S, less than or equal to 0.05 percent of P and less than 1 percent of H2O. By adopting the preparation method, the problems of high cost, high energy consumption, serious pollution and instable performance existing in the conventional product are solved.

Description

technical field [0001] The invention relates to the technical field of flux, in particular to an automatic submerged arc flux produced by utilizing industrial waste slag and a preparation method thereof. Background technique [0002] The existing smelting flux mainly uses primary ore, such as manganese ore, as the main raw material, and produces flux products (such as the commonly used variety HJ431) through the smelting process, but these traditional materials and formulas have the following problems and difficulties . [0003] 1. The cost is high. Because of the non-renewability of mineral resources, high-quality mineral products are being exhausted year by year, the price is increasing at an alarming rate, and it is becoming more and more difficult to purchase. Therefore, the development of high-manganese flux does not conform to the resource situation of our country , should be developed in the direction of low manganese or manganese-free, low energy consumption, and en...

AI Technical Summary

Problems solved by technology

[0003] 1. The cost is high. Because of the non-renewability of mineral resources, high-quality mineral products are being exhausted year by year, the price is increasing at an alarming rate, and it is becoming more and more difficult to purchase. Therefore, the development of high-manganese flux does not conform to the resource situation of our country , should be developed in the direction of low manganese or manganese-free, low energy consumption, and environmentally friendly

[0004] 2. High energy consumption, the energy consumption of traditional flux products is about 2600KWh / T per ton of finished products

[0005] 3. The pollution is heavy. Most of the traditional materials are primary ore, and the production process produces a large amount of SO 2 other harmful gases

[0006] 4. The process performance and mechanical performance of the product are relatively unstable