Ceramic mould casting process for magnesium alloy

A casting process, magnesium alloy technology, applied in the direction of manufacturing tools, casting molding equipment, metal processing equipment, etc.

Inactive Publication Date: 2015-08-12
吴光英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing casting process generally adopts sand casting, metal casting, and ceramic casting. There are advantages and disadvantages for casting molds made of many materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0006] Factors such as particle size of refractory materials, powder-to-liquid ratio, and mold release time will all affect the strength and surface quality of ceramic molds.

[0007] Magnesium alloy ceramic mold casting process is: master mold treatment - brushing silicone rubber - vacuuming - plaster filling - silicone rubber / gypsum mold drawing - hydrolysis solution - ceramic slurry - grouting - mold drawing - spray firing - roasting - Making sand molds - Alloy smelting - Pouring - Unpacking - Inspection - Spraying refractory materials The mold starting time depends on the size of the parts: about 5 minutes for small parts, about 20 minutes for large parts; the roasting temperature is 850 ° C, The temperature rise rate is 3°C / min, and the temperature is kept for one hour to eliminate the organic matter and prevent the reaction between the sand mold and the magnesium alloy.

[0008] In the casting process of the magnesium alloy ceramic mold involved in the present invention,...

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PUM

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Abstract

The invention provides a ceramic mould casting process for a magnesium alloy. The flow of the ceramic mould casting process for the magnesium alloy is as follows: carrying out female die treatment, brushing silicon rubber, vacuumizing, filling with gypsum, drawing a silicon rubber / gypsum die, preparing a hydrolysate, preparing a ceramic slurry, grouting, drawing the die, carrying out spray combustion, roasting, producing a sand mould, smelting the alloy, pouring, unboxing, inspecting, and setting die drawing time for spraying a refractory material according to the sizes of workpieces, wherein the die drawing time of the small workpieces is about 5 minutes, and the die drawing time of the large workpieces is about 20 minutes; the roasting temperature is 850 DEG C, the temperature rise speed is 3 DEG C / min, the insulation time is 1 hour, and organic matters are eliminated to prevent the reaction between the sand mould and the magnesium alloy. The ceramic mould casting process for the magnesium alloy enables the casting effect to be good, and the cast product is good in quality.

Description

technical field [0001] The invention relates to a magnesium alloy ceramic mold casting process, which belongs to the technical field of casting. Background technique [0002] The existing casting process generally adopts sand casting, metal casting and ceramic casting, each of which has advantages and disadvantages for casting molds made of many materials. Now it is necessary to develop a new casting process to make the casting effect better and the casting product quality better. Contents of the invention [0003] The invention provides a magnesium alloy ceramic mold casting process. The SiO2 ceramic mold uses gravity casting and low pressure casting to manufacture medium and small magnesium alloy molds, which can overcome the above-mentioned defects. [0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a magnesium alloy ceramic mold casting process, the magnesium alloy ceramic mold casting process flo...

Claims

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Application Information

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IPC IPC(8): B22C9/02
Inventor 吴光英
Owner 吴光英
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