A kind of preparation method of large size metal skin refractory brick and mobile mold thereof

Abstract

A method for preparing large-sized metal skin refractory bricks and a mold thereof, belonging to the technical field of refractory materials. Plates, Die End Plates and Die Covers. The method of the invention improves the uniformity of the pressing force by designing the upper and lower forces of the refractory bricks, ensures that sufficient pressure does not crack, improves the covering firmness of the metal skin by designing the metal skin special-shaped hooks, and protects the metal skin through a special mold, and the movable side of the mold is The plate and the metal skin can move synchronously to avoid the deformation of the metal skin or the existence of friction and scratches, and at the same time protect the abrasive tool and prolong the service life of the abrasive tool, so as to improve the production qualification rate and production efficiency.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a preparation method of a refractory brick and a mold thereof. Background technique [0002] Refractories are generally divided into two types, namely unshaped refractories and shaped refractories. Unshaped refractory is a mixed powdery granule composed of various aggregates or aggregates and binders, and has strong fluidity. Shaped refractories generally refer to refractory bricks, which have standard shapes and can also be temporarily processed when building and cutting as needed. [0003] Refractory bricks are also called fire bricks. According to the preparation process, they can be divided into fired bricks, non-fired bricks, fused bricks (fused cast bricks), and refractory insulation bricks; they can be divided into standard bricks and ordinary bricks according to their shape and size. , special type bricks, etc. It can be used as high-temperatur...

AI Technical Summary

Problems solved by technology

[0005] (1) The refractory brick filling is unevenly stressed, insufficient pressure leads to cracking or short service life, metal skin deformation, metal skin coating is not firm, scratches on the metal skin affect the refractory performance, resulting in short service life, and severe mold wear leads to mold wear Problems such as short service life; resulting in extremely low production pass rate and high manufacturing cost

According to statistics, in the production of large-size metal-skinned refractory bricks, there are a lot of appearance waste products, physical inspection waste products and size waste products, and the comprehensive pass rate of products is only 10%. The production time of a single large-size refractory brick is 3 times that of small-size refractory bricks. , the cost of raw materials increased by 800% to 900%;

[0006] (2) It is relatively easy to produce single-sided or upper and lower metal-skinned refractory bricks, but it is more difficult to produce L-shaped or multi-sided metal-skinned bricks. Considering the pass rate factor, the total production time needs to be increased by 30 times, which greatly affects the production rhythm and Productivity

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