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A core head for vertical semi-continuous casting thin-walled hollow casting pipe

A semi-continuous, core-head technology, applied in the field of core heads for vertical semi-continuous casting of thin-walled hollow casting tubes, can solve the problems of narrow casting space for thin-walled hollow casting tubes, affecting casting temperature and fluidity, and avoiding the The effect of cooling leakage, low cost and convenient operation

Inactive Publication Date: 2017-01-04
洛阳双瑞达特铜有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pouring space for casting thin-walled hollow pipes is narrow, and the pouring pool has no space and affects the pouring temperature and fluidity

Method used

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  • A core head for vertical semi-continuous casting thin-walled hollow casting pipe
  • A core head for vertical semi-continuous casting thin-walled hollow casting pipe

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0019] Such as figure 1 shown, and refer to figure 2 , a core head for vertical semi-continuous casting thin-walled hollow cast pipe, the core head is a structure with a spindle-shaped inner cavity 9, from top to bottom are connecting section 1, casting diameter section 2 and cooling crystallization section 3; the pouring sizing section 2 and the cooling crystallization section 3 are located in the crystallizer 16, the connecting section 1 protrudes from the crystallizer 16 and is connected with the crystallizer 16 as a whole through the clamp 17; the pouring sizing section The outer wall surface of section 2 is an arc-shaped surface that gradually expands from top to bottom and smoothly transitions, forming a large enough pouring space in the upper part with the inner wall surface of the crystallizer, and the arc-shaped surface that pours t...

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Abstract

The invention belongs to the technical field of metal alloy casting equipment, and relates to a core head for vertical semi-continuous casting of thin-walled hollow cast pipes, which has a spindle-shaped inner cavity (9), and the connection section (1) is sequentially arranged from top to bottom. , pouring sizing section (2) and cooling crystallization section (3); the outer wall surface of the pouring sizing section (2) is an arc-shaped surface gradually expanding in diameter from top to bottom and smoothly transitioning, and the inner wall surface of the crystallizer (16) A sufficiently large upper pouring space is formed between the walls; the cooling crystallization section (3) is a truncated cone whose diameter decreases from top to bottom, and there is a smooth transition between the cooling crystallization section (3) and the casting radius section (2); The slope of the cooling crystallization section (3) is 1-3; the bottom of the core head is provided with a bottom plate (6) for closing the spindle-shaped inner cavity; the core head is also provided with an air outlet pipe and a water inlet pipe (13) . The invention can cast a thin-walled hollow cast pipe with qualified internal structure quality, no defect on inner and outer surfaces and qualified size tolerance.

Description

technical field [0001] The invention belongs to the technical field of metal alloy casting equipment, and mainly relates to a core head for vertical semi-continuous casting of thin-walled hollow cast pipes. Background technique [0002] Semi-continuous casting of copper alloy ingots is undoubtedly the best casting technology, with good ingot quality and economical casting speed. Copper alloy processing enterprises mostly use coreless crystallizers to semi-continuously cast solid copper alloy ingots, and then undergo high temperature Heating and hot extrusion of large extruders realize the production of copper alloy tube blanks. If the hollow ingot can be semi-continuously cast without extrusion, it will greatly save energy consumption and processing procedures, and save a lot of processing costs, which can meet the actual needs of hollow cast pipes in special occasions. [0003] At present, relatively mature hollow cast tube production technologies mainly include centrifuga...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/059
Inventor 张智强郜贞轩詹尧
Owner 洛阳双瑞达特铜有限公司
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