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Exothermic welding crucible forming die

A forming mold, thermite welding technology, applied in the direction of mold, ceramic forming core, ceramic forming mandrel, etc., can solve the problems affecting the welding quality of thermite welding, unfavorable thermite welding, molten steel leakage, etc., and achieve the effect of sand shooting Good, guarantee the filling capacity, and prevent the effect of clogging the vent hole

Active Publication Date: 2016-10-12
施密特钢轨技术(昆山)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fragile characteristics lead to easy damage during transportation and handling, resulting in the risk of molten steel leakage during thermite welding
The damp crucible will seriously affect the quality of thermite welding
These are the disadvantages of ordinary unprotected crucibles, which have adverse effects on the application of thermite welding

Method used

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  • Exothermic welding crucible forming die
  • Exothermic welding crucible forming die
  • Exothermic welding crucible forming die

Examples

Experimental program
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Effect test

Embodiment

[0030] Please refer to Figure 1-Figure 5 , the present embodiment is a mold 100 for forming a thermite crucible, which includes an outer mold 1 with a first cavity 11 formed inside, and an inner mold 2 partially accommodated in the first cavity 11 . The first cavity 11 accommodates the container bucket 3 which is close to the inner wall surface of the first cavity 11 . The inner mold 2 and the container barrel 3 constitute a cavity 4 for crucible core-shooting molding.

[0031] The outer mold 1 includes a base 12 , a cylinder 13 fixed on the base 12 , and a first handle 14 symmetrically fixed on the surface of the cylinder 13 . U-shaped positioning openings 15 are symmetrically formed on the upper surface of the cylinder body 13 , which have a positioning and guiding effect on the placement position of the container barrel 3 . The middle part of the base 12 is provided with a circular boss 16, and the edge of the boss 16 and the inner wall surface of the cylinder 13 form a ...

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PUM

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Abstract

The invention discloses an exothermic welding crucible forming die. The exothermic welding crucible forming die comprises an outer die body with a first cavity formed inside and an inner die body partly contained in the first cavity. The inner die body comprises an inner die core contained in the first cavity. A plurality of exhaust holes arranged in order are formed in the surface of the inner die core. Exhaust plugs are arranged in the exhaust holes. By means of the exothermic welding crucible forming die, an exothermic welding single-use crucible with a protection layer can be efficiently and smoothly manufactured, and the functions of damp proofing, pressure resisting and breakage preventing are achieved for the crucible; the sand shooting forming effect is good, carrying is convenient, and the production problem that the crucible is not easy to form is solved; and the sand flow filling capability is guaranteed, and the production efficiency and forming effect are improved.

Description

【Technical field】 [0001] The invention belongs to the technical field of forming a thermite welding consumable, and in particular relates to a forming mold for a thermite welding crucible. 【Background technique】 [0002] The pouring and cooling process of rail aluminothermic welding is very similar to the law of casting, so aluminothermic welding is also called cast welding. Disposable crucible, as an important reaction vessel in the casting welding process, is of great significance to ensure the smooth completion of aluminothermic welding, and is a very important aluminothermic welding consumable. [0003] The disposable crucible is made of refractory material (usually quartz sand) and is baked and solidified at high temperature. The material is brittle, fragile, and easy to absorb water and moisture. Fragile characteristics lead to easy damage during transportation and handling, so that there is a risk of molten steel leakage during thermite welding. The damp crucible wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B7/16B28B7/28
CPCB28B7/0008B28B7/16B28B7/28
Inventor 刘天顺曹宏禄
Owner 施密特钢轨技术(昆山)有限公司
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