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Material for preparing soluble ceramic mold, soluble ceramic mold and application thereof

A ceramic mold and soluble technology, which is applied in the direction of manufacturing tools, casting molding equipment, metal processing equipment, etc., can solve the problems of difficult demolding of ceramic/metal composite materials with three-dimensional continuous network structure, so as to reduce production and preparation costs, reduce Machining, easy molding effect

Active Publication Date: 2019-06-07
DONGGUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a material that can be used to prepare soluble ceramic molds, aiming at the problem that the existing three-dimensional continuous network structure ceramic / metal composite materials are difficult to demould by the solution infiltration method, and the material prepared by the material is High mold strength, moderate shrinkage, suitable for melt infiltration

Method used

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  • Material for preparing soluble ceramic mold, soluble ceramic mold and application thereof
  • Material for preparing soluble ceramic mold, soluble ceramic mold and application thereof
  • Material for preparing soluble ceramic mold, soluble ceramic mold and application thereof

Examples

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Effect test

Embodiment 1

[0033] A material for preparing soluble ceramic molds, including the following components: fused corundum powder, quartz powder, zircon sand, binder (anhydrous sodium phosphate), plasticizer (polyethylene glycol, molecular weight 600) , mineralizer (calcium oxide), fused corundum powder, quartz powder, zircon sand, binder (anhydrous sodium phosphate), plasticizer (polyethylene glycol, molecular weight 600), mineralizer (calcium oxide ) The mass ratio is 85:0:3:10:12:3.

[0034] Preparation of dissolvable ceramic molds:

[0035] Using the above materials, design and prepare a soluble ceramic mold according to the external dimensions of the prepared composite material. The sintering process of the soluble mold is a pressureless sintering process, the sintering temperature is 1673K, and the sintering time is 30 minutes.

[0036] The surface of the prepared soluble ceramic mold is smooth, and its apparent bulk density is 2.9g / cm 3 , moderate shrinkage, small deformation, and the t...

Embodiment 2

[0046] A material for preparing soluble ceramic molds, including the following components: fused corundum powder, quartz powder, zircon sand, binder (anhydrous sodium phosphate), plasticizer (polyethylene glycol, molecular weight 600) , mineralizer (calcium oxide), fused corundum powder, quartz powder, zircon sand, binder (anhydrous sodium phosphate), plasticizer (polyethylene glycol, molecular weight 600), mineralizer (calcium oxide ) The mass ratio is 85:5:3:10:12:3.

[0047] Preparation of dissolvable ceramic molds:

[0048] Using the above materials, design and prepare a soluble ceramic mold according to the external dimensions of the prepared composite material. The sintering process of the soluble ceramic mold: the mold is prepared by pressing and sintering, the sintering pressure is 1MPa, the sintering temperature is 1673K, and the sintering time is 30min.

[0049] The surface of the soluble ceramic mold is smooth, and its apparent bulk density is 3.0g / cm 3 , moderate...

Embodiment 3

[0060] A material for preparing soluble ceramic molds, including the following components: fused corundum powder, quartz powder, zircon sand, binder (anhydrous sodium phosphate), plasticizer (polyethylene glycol, molecular weight 600) , mineralizer (calcium oxide), fused corundum powder, quartz powder, zircon sand, binder (anhydrous sodium phosphate), plasticizer (polyethylene glycol, molecular weight 600), mineralizer (calcium oxide ) The mass ratio is 85:5:3:10:12:3.

[0061] Preparation of dissolvable ceramic molds:

[0062] Using the above materials, according to the prepared composite material, design and prepare the soluble ceramic mold according to the shape and size, the sintering process of the soluble ceramic mold is as follows: the soluble ceramic mold is prepared by pressing and sintering, the sintering pressure is 1MPa, the sintering temperature is 1673K, and the sintering time is 1 MPa. for 30min.

[0063] The surface of the soluble ceramic mold is smooth, and ...

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Abstract

The invention provides a material for preparing a soluble ceramic mold, the soluble ceramic mold and application thereof. The material comprises the following ingredients of electrofused corundum powder, quartz powder, zircon sand, a binder, a plasticizer and a mineralizer, wherein the mass ratio of the electrofused corundum powder, the quartz powder, the zircon sand, the binder, the plasticizer and the mineralizer is 85:(0-10):3:10:12:3, the binder is anhydrous sodium phosphate, the plasticizer is polyethylene glycol, the mineralizer is calcium oxide, and the molecular weight of the polyethylene glycol is 600. The soluble ceramic mold prepared from the material is easy to form, mechanical properties for preparing a SiC3D / Al composite material by a solution leaching infiltration method canbe met, the soluble ceramic mold can disperse in water and is easily separated from the SiC3D / Al composite material, the demolding efficiency of the SiC3D / Al composite material can be effectively improved, and subsequent demolding mechanical machining is greatly reduced, so that the composite material production preparation cost is lowered.

Description

technical field [0001] The invention relates to the technical field of preparation of composite materials, more specifically, to a material for preparing a soluble ceramic mold, a soluble ceramic mold and applications thereof. Background technique [0002] Three-dimensional Co-continuous Network Ceramic-Metal Composite (Three-dimensional Co-continuous Network Ceramic-Metal Composite, referred to as C4 material, the composition of the ceramic phase and metal phase both present a spatial topology, compared with the traditional discontinuous phase reinforced composite In terms of materials (particle reinforcement or fiber reinforcement, etc.), the physical and mechanical characteristics of each constituent phase of this composite material can be effectively retained. The three-dimensional continuous network structure of SiC 3D / Al composite material is a typical C4 material, because it not only has the characteristics of high strength, high hardness and good wear resistance of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C1/02B22C9/02B22D23/04C22C1/10
Inventor 朱静波王扬卫陈盛贵孙振忠卢秉恒
Owner DONGGUAN UNIV OF TECH