CN215749816U

CN215749816U - Casting mould for casting alpha beta-corundum shrinkage-hole-free pool wall brick

Info

Publication number: CN215749816U
Application number: CN202121845501.1U
Authority: CN
Inventors: 魏小闵; 杨遂旺; 杨靖宇
Original assignee: Zhengzhou Dongfang Ancai Refractory Co ltd
Current assignee: Zhengzhou Dongfang Ancai Refractory Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-02-08
Anticipated expiration: 2031-08-09

Abstract

The utility model provides a founding alpha beta-corundum does not have shrinkage cavity pool wall brick casting die, sets up the die block board that is the rectangle including the level, and four sides of die block board upper surface are fixed respectively are equipped with a side form board, and four vertical sides of four side form boards correspond the connection, and four side form board upper side all are fixed and are equipped with the trapezoidal template of width under the narrow, and every trapezoidal template all inclines to set up, and the waist of two adjacent trapezoidal templates corresponds the connection, and the side of going up of four trapezoidal templates forms the rectangle mouth. The utility model has simple structure and convenient manufacture, greatly improves the production efficiency, ensures the product percent of pass of the alpha beta-corundum shrinkage-free pool wall brick, and can save about 20 percent of the cost of raw materials.

Description

Casting mould for casting alpha beta-corundum shrinkage-hole-free pool wall brick

Technical Field

The utility model belongs to the technical field of refractory material production, and particularly relates to a casting mold for fusion casting alpha beta-corundum shrinkage-hole-free pool wall bricks.

Background

The alpha beta-corundum shrinkage-hole-free pool wall brick has good erosion resistance and stability, and the foaming index is basically zero when the alpha beta-corundum shrinkage-hole-free pool wall brick is contacted with molten glass liquid, so that the alpha beta-corundum shrinkage-free pool wall brick does not pollute the glass liquid, and the produced glass product is excellent. Therefore, the method is widely applied to the cooling part of a float glass kiln for producing high-quality glass. The sand mould of the prior art adopts white corundum according to a certain gradation, sodium silicate is mixed and then made into a white corundum sand plate, then the white corundum sand plate enters a drying kiln to be dried, the white corundum sand plate is taken out of the kiln and bonded into an integral mould, a mould top plate is covered, as shown in figure 1, the mould is in a cuboid shape, 1-2 through holes 1 are arranged on the mould top plate, a riser 2 is arranged on each through hole 1, then the white corundum mould is embedded into a heat insulation box and is insulated by using a heat insulation material, alpha beta-corundum melt which is melted by an electric arc furnace is poured into a mould cavity, after the riser exhausts, the surface is covered by using the heat insulation material, heat insulation annealing is carried out for 15-20 days, then brick materials are lifted out to be cleaned and processed, and because the cast brick is a non-shrinkage-hole brick, the interior of the mould cavity needs to be filled with the cast melt, and the brick body needs to be cut off during processing, as in the case of the cutting belt 7 in fig. 1, cutting is performed along the cutting belt 7 at the time of cutting, and the upper material after cutting is used as clinker next time. In conclusion, the existing casting mould for casting the alpha beta corundum shrinkage-cavity-free pool wall brick is complex in mould manufacturing, casting quality is difficult to guarantee due to the fact that a few risers are designed, and most of cut materials (clinker) are used for casting again, so that large energy waste is caused, and production cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides the casting mould for the fusion-cast alpha beta-corundum shrinkage-hole-free pool wall brick, which is easy to manufacture, good in casting quality and low in production cost.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a founding alpha beta-corundum does not have shrinkage cavity pool wall brick casting die, sets up the die block board that is the rectangle including the level, and four sides of die block board upper surface are fixed respectively are equipped with a side form board, and four vertical sides of four side form boards correspond the connection, and four side form board upper side all are fixed and are equipped with the trapezoidal template of width under the narrow, and every trapezoidal template all inclines to set up, and the waist of two adjacent trapezoidal templates corresponds the connection, and the side of going up of four trapezoidal templates forms the rectangle mouth.

The bottom template, the side templates and the trapezoidal template are all white corundum sand plates, and the white corundum sand plates connected with the adjacent side edges are fixedly connected into a whole through gluing.

The inner walls of the sideforms are provided with cut-off strips parallel to the base form, the distance between the cut-off strips and the upper side of the sideforms being equal to 1/3 the height of the sideforms.

The height of the quadrangular frustum pyramid formed by the four trapezoidal templates is equal to that of the side template.

The utility model adopts the technical scheme that in order to manufacture the sand mould simply and conveniently without influencing the product quality, the utility model improves the sand mould of the brick material, the novel production process adopts white corundum which is mixed by water glass according to certain gradation and then made into a white corundum plate, then the white corundum plate enters a drying kiln for drying, the white corundum plate is taken out of the kiln and bonded together to form an integral mould, a rectangular opening is a riser of the mould, but is larger than the existing riser, the integral sand mould of the mould looks like a small house, then the mould is buried into heat-preserving sand, heat preservation is carried out by using heat-preserving material, alpha beta-corundum solution which is melted by an electric arc furnace is cast, exhausted and secondarily poured from the rectangular opening at the upper end, then is completely covered by the heat-preserving material, heat-preserving annealing is carried out for 15-20 days, then the brick material is lifted out for cleaning, And (6) processing.

Because four trapezoidal templates are arranged above the four side templates to form a quadrangular frustum pyramid structure, the size of the die cavity is reduced, and when the casting without shrinkage cavity is carried out, the size of the cut part above the position of the cutting belt is reduced, so that the energy consumption is reduced, and the production cost is naturally reduced.

Because the sectional area of the rectangular opening is larger than the sum of the sectional areas of the two existing risers, the rectangular opening has the double functions of a pouring opening and the risers. Because the trapezoid template is obliquely arranged, the exhaust process is smoother, and the casting effect without shrinkage cavities is better.

In conclusion, the utility model has simple structure and convenient manufacture, greatly improves the production efficiency, ensures the product percent of pass of the alpha beta-corundum shrinkage-cavity-free pool wall brick, and can save about 20 percent of the cost of raw materials.

Drawings

FIG. 1 is a schematic structural view of a prior art casting mold;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a top view of fig. 2.

Detailed Description

As shown in fig. 2-3, the casting mold for casting the fusion casting alpha beta-corundum shrinkage-hole-free pool wall brick comprises a bottom template 3 which is horizontally arranged to be rectangular, four side edges of the upper surface of the bottom template 3 are respectively and fixedly provided with a side template 4, four vertical side edges of the four side templates 4 are correspondingly connected, four trapezoidal templates 5 which are narrow at the upper part and wide at the lower part are respectively and fixedly arranged on the upper side edges of the four side templates 4, each trapezoidal template 5 is obliquely arranged, waist edges of two adjacent trapezoidal templates 5 are correspondingly connected, and rectangular openings 6 are formed on the upper side edges of the four trapezoidal templates 5.

The bottom template 3, the side templates 4 and the trapezoidal template 5 are all white corundum sand plates, and the white corundum sand plates connected with the adjacent side edges are fixedly connected into a whole through gluing.

The inner walls of the sideforms 4 are provided with cut-off strips 7 parallel to the base 3, the distance of the cut-off strips 7 to the upper side of the sideforms 4 being equal to 1/3 the height of the sideforms 4.

The height of the quadrangular frustum pyramid formed by the four trapezoidal templates 5 is equal to that of the side template 4.

The size and proportion of the position of the cutting belt 7 and the height of the quadrangular frustum formed by the four trapezoidal templates 5 can reduce the volume of the casting melt.

In order to make the sand mold simple and convenient without influencing the product quality, the utility model improves the sand mold of the brick material, the novel production process is that white corundum is mixed with water glass according to certain gradation and then made into a white corundum plate, then the mixture enters a drying kiln for drying, the white corundum sand plates are bonded together into an integral die after being taken out of the kiln, the rectangular opening 6 is a riser of the die, but is larger than the existing feeder, the whole sand mould looks like a small house, and then the mould is embedded into heat-insulating sand, insulating with heat insulating material, casting, exhausting and secondary casting the alpha beta corundum melt molten in the electric arc furnace from the rectangular opening 6 at the upper end, then the brick is completely covered by a heat insulation material, heat insulation annealing is carried out for 15 to 20 days, and then the brick is lifted out for cleaning and processing. The arrows in FIG. 2 indicate the direction of casting the melt.

Because four trapezoidal templates 5 are arranged above the four side templates 4 to form a quadrangular frustum pyramid-shaped structure, the volume of the die cavity is reduced, and when the casting without shrinkage cavity is carried out, the volume of the cut-off part above the position of the cutting belt 7 is reduced, so that the energy consumption is reduced, and the production cost is naturally reduced.

As the sectional area of the rectangular opening 6 is larger than the sum of the sectional areas of the two existing risers, the rectangular opening 6 has the double functions of a pouring opening and a riser. Because the trapezoid template 5 is obliquely arranged, the exhaust process is smoother, and the casting effect without shrinkage cavities is better.

The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A casting mould for casting alpha beta-corundum sink wall bricks without shrinkage cavities is characterized in that: the bottom template that is the rectangle including the level setting, four sides of bottom template upper surface are fixed respectively and are equipped with a side form board, and four vertical sides of four side form boards correspond and connect, and four side form board upper side are all fixed and are equipped with the trapezoidal template of width under the narrow, and every trapezoidal template all inclines to set up, and the waist of two adjacent trapezoidal templates corresponds to connect, and the side of going up of four trapezoidal templates forms the rectangle mouth.

2. The casting mold of the fusion cast α β -corundum shrinkage-hole-free pool wall brick according to claim 1, wherein: the bottom template, the side templates and the trapezoidal template are all white corundum sand plates, and the white corundum sand plates connected with the adjacent side edges are fixedly connected into a whole through gluing.

3. The casting mold of the fusion cast α β -corundum shrinkage-hole-free pool wall brick according to claim 1 or 2, wherein: the inner walls of the sideforms are provided with cut-off strips parallel to the base form, the distance between the cut-off strips and the upper side of the sideforms being equal to 1/3 the height of the sideforms.

4. The casting mold of the fusion cast α β -corundum shrinkage-hole-free pool wall brick according to claim 3, wherein: the height of the quadrangular frustum pyramid formed by the four trapezoidal templates is equal to that of the side template.