A kind of thermite welding crucible forming mold

A technology for forming molds and aluminothermic welding, applied in the directions of molds, ceramic forming cores, ceramic forming mandrels, etc., can solve the problems affecting the welding quality of aluminothermic welding, unfavorable aluminothermic welding, leakage of molten steel, etc., and achieve the effect of sand injection molding Good, ensure the filling ability, prevent the effect of blocking the exhaust hole

Active Publication Date: 2019-06-18
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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  • A kind of thermite welding crucible forming mold
  • A kind of thermite welding crucible forming mold
  • A kind of thermite welding crucible forming mold

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0030] Please refer to Figure 1-Figure 5 This embodiment is the aluminothermic crucible forming mold 100, which includes an outer mold 1 in which a first cavity 11 is formed, and an inner mold 2 partially housed in the first cavity 11. The first cavity 11 contains a container barrel 3 close to the inner wall surface of the first cavity 11. The inner mold 2 and the container barrel 3 constitute a crucible core shooting cavity 4.

[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 opened 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. A circular boss 16 is provided in the middle of the base 12, and a positioning slot 17 is formed on the edge of the boss 16 and the inner wall surface of the cylinder 13, which is mainly used to clam...

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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 thermite welding consumables forming technology, and particularly relates to a thermite welding crucible forming mold. 【Background technique】 [0002] The pouring and cooling process of rail thermite welding is very similar to the rules of casting, so thermite welding is also called casting welding. As an important reaction vessel in the casting and welding process, the disposable crucible is of great significance to ensure the smooth completion of the thermite welding. It is a very important thermite welding consumable. [0003] The disposable crucible is made of refractory material (usually quartz sand) after high temperature baking and solidification. The material is brittle, fragile, easy to absorb water and moisture. The fragile characteristics lead to easy damage during transportation and handling, and the risk of molten steel leakage during the thermite welding process. The wet crucible will seriously...

Claims

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Application Information

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Patent Type & Authority Patents(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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