Combined mold for static slag resistance test of machine-pressed brick

Abstract

The invention discloses a combined mold for a static slag resistance test of a machine-pressed brick. The combined mold comprises a magnetic base, a first round table and a reducing screw, wherein thereducing screw is used in cooperationwith the magnetic base and the first round table; the first round table is locatedon the magnetic base; four smallbulging tables are fixedly connected to the position close to the edge of the upper surface of the magnetic base; a base through hole is formed in the center of the upper surface of the magnetic base in a penetrating manner; a second round table isfixedly connected to the center of the top of the first round table. According to the combined mold, the round tables can be fixed in the specific positions of a bottom plate of a machine-pressed brick mold by the arranged magnetic base, overturning or rolling of the slag resistant mold due to material pouring can be avoided, and after the slag resistance test, the diameter position of a cruciblecan be determined on the basis of traces left by the small bulging tables on the magnetic base, so that cutting along the center line of the crucible can be ensured, and data measurement accuracy isensured.

Description

technical field [0001] The invention relates to the technical field of test molds, in particular to a combined mold used for static slag resistance tests of machine-pressed bricks. Background technique [0002] Refining technologies outside the molten steel furnace are becoming more and more popular, such as LF refining, RH refining, VD refining and VOD refining, etc. Due to the relatively high refining temperature, refining slag can react with slag wire bricks to form a large amount of low-melting materials, such as CMS2 (melting point 1391.5°C ), C2MS2 (melting point 1454°C), CMS (decomposition at 1498°C), C3MS2 (decomposition at 1575°C), etc. These low-melting materials fall off under the action of molten steel washing, resulting in a rapid reduction in the thickness of the refractory working lining, which poses a great safety hazard. Therefore, through the slag resistance test to grasp the erosion of the refining slag on the slag line brick, you can choose a suitable pla...

AI Technical Summary

Problems solved by technology

[0003] However, the traditional slag resistance test mold has the following disadvantages: first, during the pouring process, the mold is easily "overwhelmed" by the material, causing the mold to be placed horizontally in the machine-pressed brick; second, after the static slag resistance test, it cannot Accurately find the centerline of the crucible for cutting, resulting in inaccurate data analysis, and the traditional mold is in the shape of a truncated cone. After cutting along the centerline, the original diameter of the measurement part cannot be determined, and the situation of slag erosion cannot be accurately compared.

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