Metal-ceramic wear-resistance material of three-dimensional network ceramic skeleton and preparing method thereof

A technology of cermets and ceramic skeletons, which is applied in the field of composite wear-resistant materials, can solve the problems of low production efficiency and complex overall process of ceramic nickel plating process, and achieve the effects of good integrity, improved market competitiveness, and convenient and firm combination

Active Publication Date: 2020-02-04
ZHONGCAI HIGH NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complex overall process of the ceramic nickel plating process, more pretreatment steps such as activation and sensitization are required, and the production efficiency is low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The preparation process of the cermet wear-resistant material of the three-dimensional network ceramic skeleton of this embodiment is as follows:

[0030] S1. Add 1 part by weight of carboxymethyl cellulose, 5 parts by weight of silica sol and 3.1 parts by weight of additives to 17.9 parts by weight of deionized water at room temperature, dissolve them and stir them evenly to prepare a material system for extrusion printing , adding additives includes 2 parts by weight of lubricant, 1 part by weight of plasticizer, and 0.1 part by weight of diluent;

[0031] S2, 50 parts by weight of Al 2 o 3 Powder and 15 parts by weight of kaolin powder are evenly mixed, then added to the above solution, fully stirred to disperse evenly to obtain a viscous ceramic paste, wherein, Al 2 o 3 Powder is 92% α-Al 2 o 3 , the particle size distribution is 0.8-5.2μm; the selected kaolin is 2SiO 2 ·Al 2 o 3 2H 2 O, the particle size distribution is 125-300 μm;

[0032] S3. Add 8 part...

Embodiment 2

[0036] The features of this embodiment that are the same as those of Embodiment 1 will not be described in detail. The features of this embodiment that are different from Embodiment 1 are:

[0037] The preparation process of the cermet wear-resistant material of the three-dimensional network ceramic skeleton of this embodiment is as follows:

[0038] S1. Add 3 parts by weight of hydroxypropyl methylcellulose, 6 parts by weight of ammonium polyacrylate and 4 parts by weight of additives to 10 parts by weight of deionized water at room temperature, dissolve them and stir them evenly, for the preparation of extrusion printing The material system, additives include 2 parts by weight lubricant, 1.6 parts by weight plasticizer, 0.4 parts by weight diluent;

[0039] S2, 60 parts by weight of Al 2 o 3 After the powder and 11 parts by weight of kaolin powder are mixed evenly, they are added to the above solution, and fully stirred to disperse uniformly to obtain a viscous ceramic pas...

Embodiment 3

[0043] The features of this embodiment that are the same as those of Embodiment 1 will not be described in detail. The features of this embodiment that are different from Embodiment 1 are:

[0044] The preparation process of the cermet wear-resistant material of the three-dimensional network ceramic skeleton of this embodiment is as follows:

[0045] S1. Add 1 part by weight of hydroxypropyl methylcellulose, 0.8 parts by weight of dibutyl phthalate (DBP), 5 parts by weight of stearic acid and 3.2 parts by weight of additives to 10 parts by weight of Dissolved in deionized water and mechanically stirred evenly, used to prepare a material system for extrusion printing, adding additives including 2 parts by weight of lubricant, 1 part by weight of plasticizer, and 0.2 parts by weight of diluent;

[0046] S2, 70 parts by weight of Al 2 o 3 Powder and 10 parts by weight of kaolin powder are evenly mixed, then added to the above solution, fully stirred to disperse evenly to obtain...

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Abstract

The invention relates to a metal-ceramic wear-resistance material of a three-dimensional network ceramic skeleton and a preparing method thereof. The three-dimensional network ceramic skeleton made bya 3D printing technology is used as a ceramic base body compounded with a metal base body, the whole is continuous, and the strength is high; as the ceramic skeleton is doped with metal alloy powder,the reactivity of the ceramic base body is effectively improved when base body molten metal is cast due to the existence of the metal alloy, the wettability of the molten metal in the ceramic skeleton is improved, and the molten metal is better permeated in the ceramic skeleton; as the melting point of the to-be-doped metal alloy powder is high, the solid characteristics of part of powder do notchange during sintering, the integrity of the three-dimensional network ceramic skeleton is facilitated, the strength of the skeleton is ensured in the casting process, and accordingly, the strength and the wear resistance of the metal-ceramic wear-resistance material are higher; and therefore, the problem that the bonding property of the ceramic base and the base metal is poor is radically solved, the production cycle of the product is greatly shortened, and the market competitiveness of a production enterprise is greatly improved.

Description

technical field [0001] The invention belongs to the field of composite wear-resistant materials, and in particular relates to a cermet wear-resistant material with a three-dimensional network ceramic skeleton and a preparation method thereof. Background technique [0002] Metal-ceramic composite materials are a type of composite materials prepared by combining the high hardness and wear resistance of ceramics with the high toughness of metals. They have great application prospects in wear-resistant fields such as cement, coal power or ore. The traditional process prepares the ceramic prefabricated body by dry pressing, and after the surface is nickel-plated, it is placed in a sand mold and cast to obtain a metal-ceramic composite material. However, due to the complex overall process of the ceramic nickel plating process, more pretreatment steps such as activation and sensitization are required, and the preparation efficiency is low. Contents of the invention [0003] In o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/00B22F3/22B22F1/00B33Y10/00B33Y80/00
CPCB22D19/00B22F3/227B22F3/1021B33Y10/00B33Y80/00B22F1/10
Inventor 李伶屈忠宝陈学江王再义王营营刘时浩吕佳琪徐丹丹何娟
Owner ZHONGCAI HIGH NEW MATERIAL
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