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A kind of manufacturing method of riser tube for aluminum alloy casting

A manufacturing method, the technology of the riser tube, applied in the direction of manufacturing tools, casting equipment, and equipment for feeding molten metal into the mold, etc., to achieve the effect of long service life and good air tightness

Active Publication Date: 2016-04-06
LIAONING YIFEI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve technical problems in riser pipe manufacturing

Method used

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  • A kind of manufacturing method of riser tube for aluminum alloy casting
  • A kind of manufacturing method of riser tube for aluminum alloy casting

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Experimental program
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Embodiment Construction

[0018] Liquid riser structure: As shown in the figure, there is a lumen on the upper part of the pipe body 1 with the pipe wall 1.2, the upper part of the lumen is the liquid outlet 1.1, and the lower part of the pipe body is provided with a thickened part 1.3, and the thickened part A handle portion 1.4 is provided on the outside, an insertion portion 1.5 is provided on the lower wall of the handle portion of the pipe body, and a liquid inlet 1.6 is provided in the inner lumen of the insertion portion of the pipe body.

[0019] Riser Manufacturing:

[0020] 1. Preparation of raw materials:

[0021] Take 98.5% by mass percentage of magnesium oxide and 98.5% of titanium dioxide and mix them in a ratio of 1:1, then ball mill for 6 hours, and pre-sinter at 1100°C by solid-state reaction method to form magnesium titanate.

[0022] Take 99.5% alumina powder and 98.5% titanium dioxide by mass percentage and mix them at a ratio of 1:1, then ball mill for 6 hours, and pre-calcine alu...

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PUM

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Abstract

The invention discloses a manufacturing method of a lift tube for aluminum alloy casting. The method comprises the following steps: preparing raw materials; mixing the raw materials; manufacturing the lift tube. The lift tube manufactured by the method has the characteristics of high temperature resistance, corrosion resistance, heat shock resistance, no aluminum adhesion, no slag, fatigue impact resistance, good airtightness and long service life, and is suitable for aluminum alloy casting.

Description

technical field [0001] The invention proposes an article in the field of ceramics, in particular a method for manufacturing a rising pipe for aluminum alloy casting. Background technique [0002] The riser pipe is one of the key components of the aluminum alloy low pressure casting machine. When working, the lower end is placed in the heat preservation furnace of the low pressure casting machine to contain the molten aluminum, and the temperature is 650°C~800°C. The upper end is connected to the mold cavity of the low pressure casting machine. The molten aluminum rises along the riser pipe and enters the mold cavity through the action of pressure to complete periodic casting and realize automation and continuity. Slag and good air tightness, but also have long-term thermal shock fatigue resistance. At present, domestic risers mostly use aluminum titanate and silicon oxide combined with silicon carbide riser pipes. Due to the micro-crack structure of aluminum titanate and hi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D35/04C04B35/465C04B35/478C04B35/622B22D18/04
CPCB22D18/04C04B35/66C04B2235/3206C04B2235/3217C04B2235/3234C04B2235/3236C04B2235/3418
Inventor 徐涛李鑫
Owner LIAONING YIFEI TECH