Improved method for shaping bolt bosses in cooling wall castings

Abstract

The present invention relates to an improved method for molding a bolt boss cast in a cooling wall, and the specific molding steps and improvement measures are as follows: the outer ring of the cast-in bolt boss is integrally made into an integral mud core outer ring, and a mounting bolt positioning block is installed in the middle position of the cast-in mounting bolt, and the positioning block is circle-center positioned and has guaranteed dimensional accuracy; the cast-in mounting bolt and the mounting bolt positioning block are arranged in the middle of the integral mud core outer ring; the arrangement of the integral mud core outer ring breaks through the limitation of the area of ​​the cast-in bolt boss body, and the demoulding slope can be set as needed to overcome the difficulty of demoulding the boss, and the outer mold does not need to be disassembled.

Description

Technical Field

[0001] The invention belongs to the metallurgical casting industry, and particularly relates to an improved cooling wall cast-in bolt boss molding method. Background Art

[0002] The method of casting the bolt boss into the cooling wall generally adopts the solid modeling. However, the installation bolts connect the cooling wall and the furnace shell in a direction perpendicular to the furnace shell, that is, the two adjacent bolts are not parallel, but form an angle (such as Figure 1 as shown). Figure 1 The accompanying drawings are marked as follows: 11 is the mounting hole boss, 12 is the cooling wall body, 13 is the cast bolt, and 14 is the wooden mold dismantling. The wooden mold must be dismantled when the actual sample is modeled, and the area of ​​the cast bolt boss is limited. In order to smoothly demold the model, the structure of the wooden mold is often damaged, and the life of the wooden mold is also shortened.

[0003] If the cast bolt boss is disassembled as a whole, although it is convenient to smoothly demould the shape, the dimensional accuracy of the installed bolts cannot be guaranteed. In addition to the angle between two adjacent bolts, there is sometimes a large angle between the cast bolt and the longitudinal plane of the cooling wall (such as Figure 2 as shown). Figure 2 The accompanying drawings are marked as follows: 21 is a cooling pipe, 22 is a mounting bolt boss, 23 is a cast-in mounting bolt, 24 is a cooling stave body, and 25 is a reserved mounting hole. In this case, it is difficult to dismantle the cast-in bolt boss normally.

[0004] In view of this, scientific researchers and technicians in this field are committed to developing an improved method for molding a cast-in bolt boss to overcome the shortcomings of the conventional molding method for molding a cast-in bolt boss on a cooling wall. Summary of the invention

[0005] The task of the present invention is to provide an improved method for molding the bolt boss cast in the cooling wall, in which the outer ring of the cast bolt boss is made as a mud core as a whole, breaking through the limitation of the area of ​​the cast bolt boss body, and the demolding angle can be set as needed, thus overcoming the difficulty of demolding the boss, and at the same time the dimensional accuracy is also guaranteed, thereby solving the problems existing in the above-mentioned prior art.

[0006] The technical solution of the present invention is as follows:

[0007] An improved method for shaping a bolt boss for a cooling wall, the specific shaping steps and improvement measures are as follows:

[0008] The outer ring of the cast bolt boss is integrally made into an integral mud core outer ring, and a bolt positioning block is installed in the middle of the cast mounting bolt. The positioning block is circle center positioning and the dimensional accuracy is guaranteed;

[0009] The cast-in mounting bolts and the mounting bolt positioning blocks are arranged in the middle of the outer ring of the integral mud core;

[0010] The setting of the integral mud core outer ring breaks through the limitation of the area of ​​the bolt boss body cast in, and the demoulding slope can be set as needed to overcome the difficulty of demoulding the boss, and the outer mold does not need to be disassembled.

[0011] The present invention is an improved method for molding a bolt boss cast in a cooling wall. The outer ring of the cast bolt boss is made as a mud core as a whole, breaking through the limitation of the area of ​​the cast bolt boss body. The demoulding slope can be set as needed, perfectly solving the problem of difficulty in demoulding the boss. At the same time, the outer mold does not need to be disassembled, and the positioning block for installing the bolt is positioned at the center of the circle, so the dimensional accuracy is also guaranteed.

[0012] The molding scheme of the present invention breaks through the limitation of the area of ​​the cast bolt boss body, and the draft angle can be set as needed. Whether the cast bolt is at a horizontal angle α or a vertical angle β, a suitable draft angle can be set, which not only overcomes the difficulty of boss demolding, but also ensures the dimensional accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a traditional method of casting bolt bosses into cooling walls.

[0014] Figure 2 It is a structural schematic diagram of another traditional method of casting bolt bosses into cooling walls.

[0015] Figure 3 The invention is a structural schematic diagram of an improved cooling wall casting bolt boss molding method.

[0016] Reference numerals:

[0017] 1 is the cast-in mounting bolt, 2 is the mounting bolt positioning block, and 3 is the integral mud core outer ring;

[0018] 11 is a mounting hole boss, 12 is a cooling wall body, 13 is a cast-in bolt, and 14 is a wooden mold disassembly;

[0019] 21 is a cooling pipe, 22 is a mounting bolt boss, 23 is a cast mounting bolt, 24 is a cooling wall body, and 25 is a reserved mounting hole. DETAILED DESCRIPTION

[0020] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0021] See also Figure 3 The present invention provides an improved method for molding a cooling wall cast-in bolt boss, and the specific molding steps and improvement measures are as follows:

[0022] The outer ring of the cast bolt boss is integrally made into an integral mud core outer ring 3, and the mounting bolt positioning block 2 is installed in the middle position of the cast mounting bolt 1. The positioning block is positioned at the center of the circle, so that the dimensional accuracy is guaranteed.

[0023] The cast-in mounting bolt 1 together with the mounting bolt positioning block 2 are arranged in the middle of the outer ring 3 of the integral mud core.

[0024] The setting of the integral mud core outer ring 3 breaks through the limitation of the area of ​​the bolt boss body cast in, and the demoulding slope can be set as needed, which overcomes the difficulty of demoulding the boss, and the outer mold does not need to be disassembled.

[0025] In summary, according to an improved method for molding bolt bosses on cooling walls of the present invention, the outer ring of the cast bolt boss is made as a mud core as a whole, breaking through the limitation of the area of ​​the cast bolt boss body, and the demolding angle can be set as needed, which perfectly solves the problem of difficulty in demolding the boss. At the same time, the outer mold does not need to be disassembled, and the positioning block for installing the bolt is positioned at the center of the circle, so the dimensional accuracy is also guaranteed.

[0026] Of course, those skilled in the art should realize that the above embodiments are only used to illustrate the present invention, and are not used to limit the present invention. As long as they are within the spirit of the present invention, changes and modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. An improved method for forming a bolt boss on a cooling wall, characterized in that: The specific modeling steps and improvement measures are as follows: The outer ring of the cast bolt boss is integrally made into an integral mud core outer ring (3), and a mounting bolt positioning block (2) is installed in the middle of the cast mounting bolt (1), and the positioning block is circle center positioning and has guaranteed dimensional accuracy; The cast-in mounting bolt (1) and the mounting bolt positioning block (2) are arranged in the middle of the outer ring (3) of the integral mud core; The provision of the integral mud core outer ring (3) breaks through the limitation of the area of ​​the bolt boss body cast in, and the demoulding slope can be set as required to overcome the difficulty of demoulding the boss.

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