Glass clinker added into peritectic steel casting powder and preparation and application method thereof

Abstract

The invention relates to glass clinker added into peritectic steel casting powder. The glass clinker comprises, by weight, 78.00-86.00 Wt% of gold and copper tailings, 5.00-10.00 Wt% of SiO2, 5.00-9.00 Wt% of CaF2, 1.00-2.00 Wt% of BaO, 0.50-1.50 Wt% of CO2O3, 0-0.2 Wt% of MnO2 and 0-0.1 Wt% of Ni2O3. In the using process, the weight percentage meets the requirement of 100 Wt%. The composite peritectic steel casting powder with excellent performance can be obtained by ball milling and even mixing of 40.00-60.00 Wt% of the peritectic steel casting powder, 30.00-50.00 Wt% of the prepared glass clinker and 3.00-12.00 Wt% of carbon dust. The composite peritectic steel casting powder has the advantages of being high in glass forming speed, high in crystallization rate, dark black in color, low in density of heat flow, small in release gas amount in the using process, even in slag film, capable of obviously reducing longitudinal cracking of peritectic steel casting blank and the like.

Description

technical field [0001] The invention relates to glass clinker added to peritectic steel mold slag and its preparation and application methods, belonging to the technical field of metallurgical materials. Background technique [0002] Peritectic steel is the most widely used steel type in practical applications, mainly referring to ordinary carbon steel with a carbon content of 0.08Wt% to 0.17Wt%. This series of steel types are widely used in construction, shipbuilding, oil and gas transportation, machinery and other industries. The problem during casting is that the peritectic steel is in the peritectic region (L+δ—γ) when it solidifies, and the initial solidified billet shell of the meniscus of the crystallizer undergoes δ-γ transformation as the temperature drops, accompanied by a large volume shrinkage , the billet shell is separated from the copper plate to form an air gap, resulting in the minimum heat flow, the billet shell becomes thinner, and a depression is formed o...

AI Technical Summary

Problems solved by technology

[0009] The existing peritectic steel mold slag does not use the method of adding part of the glass clinker peritectic steel mold slag, all of which are directly prepared and mixed with mineral raw materials and chemical raw materials, in which the composition uniformity is low, the physical properties are not uniform, the glass forming rate, The crystallization rate is low, which will cause some quality problems in the actual production of peritectic steel