Anti-gravity forming air cooled throat ascending feed cutoff method for copper alloy propeller for large ship

A copper alloy and marine technology, which is applied in the field of anti-gravity forming air-cooled throat cut-off liquid, and copper alloy propeller anti-gravity forming air-cooled throat cut-off liquid for large ships, can solve problems such as a long time, and achieve convenient operation. , the structure is simple, the effect is conducive to safe production

Inactive Publication Date: 2017-12-26
HARBIN INST OF TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large marine copper alloy propeller casting is about 10

Method used

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  • Anti-gravity forming air cooled throat ascending feed cutoff method for copper alloy propeller for large ship

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specific Embodiment approach 1

[0013] Specific implementation mode one: combine figure 1 To illustrate this embodiment, the forming device used in the anti-gravity forming air-cooled throat cut-off liquid lifting method for a copper alloy propeller for a large ship in this embodiment includes an upper tank 1, a mold 2, a propeller casting 3, an air-cooled throat 4, and a partition Plate 5, riser pipe 6, copper water ladle 7 and lower tank 8, upper tank 1, middle partition 5, and lower tank 8 are arranged sequentially from top to bottom, mold 2 is set in upper tank 1, copper water ladle 7 Set in the lower tank 8, the lower part of the riser pipe 6 is inserted into the copper water bag 7, the upper end of the riser pipe 6 is inserted into the lower surface of the mold 2, and the air-cooled throat 4 is set on the upper end of the riser pipe 6;

[0014] The specific steps of the copper alloy propeller anti-gravity forming air-cooled throat cut-off liquid rising method for large ships are as follows:

[0015] S...

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Abstract

The invention belongs to the field of ship manufacturing, and relates to an anti-gravity forming air cooled throat ascending feed cutoff method, in particular to an anti-gravity forming air cooled throat ascending feed cutoff method for a copper alloy propeller for a large ship. The method aims to solve the problems that a long time is needed from liquid cooling to a solid state of the copper alloy propeller for the large ship, and after mold filling and an ascending liquid and pressure maintaining curve are finished, a sprue above an ascending liquid pipe must be blocked to cut off ascending feed. An upper tank, a casting mold, a propeller casting, an air cooled throat, a middle partition plate, the ascending feed pipe, a molten copper ladle and a lower tank are included; the upper tank, the middle partition plate and the lower tank are sequentially arranged from top to bottom; the casting mold is arranged inside the upper tank; the molten copper ladle is arranged in the lower tank; the lower portion of the ascending feed pipe is inserted into the molten copper ladle; the upper end of the ascending feed pipe is inserted into the lower surface of the casting mold; and the air cooled throat is arranged at the upper end of the ascending feed pipe in a sleeving mode.

Description

technical field [0001] The invention relates to an anti-gravity forming air-cooled throat cut-off liquid lifting method, in particular to a large-scale ship-used copper alloy propeller anti-gravity formed air-cooled throat cut-off liquid lifting method, which belongs to the field of shipbuilding. Background technique [0002] The development of anti-gravity casting technology provides a technological guarantee for the liquid forming of copper alloy propellers for large ships (including military ships) that require higher quality. Under the condition of anti-gravity, the copper alloy liquid is forced to fill the alloy liquid in the copper water ladle into the mold along the riser pipe against the direction of gravity through the gas pressure on the liquid surface in the copper water ladle being greater than the pressure in the mold cavity. Cavity, after the liquid metal in the cavity is solidified and cooled, a casting is obtained. During the process of the metal liquid in t...

Claims

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Application Information

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IPC IPC(8): B22D18/00
CPCB22D18/00
Inventor 曹福洋孙剑飞姜元君于霄雷高君成宁志良黄永江彭德林宋和谦
Owner HARBIN INST OF TECH
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