Multi-phase honeycomb ceramic and steel composite material and preparation method thereof

A technology of honeycomb ceramics and composite materials, applied in the field of composite honeycomb ceramics and iron and steel composite materials and their preparation, can solve the problem that the comprehensive performance and wear resistance of materials cannot be well guaranteed, the position and volume fraction of ceramics are difficult to control, and the distribution of ceramics Non-uniformity and other problems, to achieve the effect of controlling the position and volume fraction, the preparation method is convenient and easy to implement, and it is easier to achieve

Inactive Publication Date: 2010-01-20
ZHENGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current ceramic-metal composite materials have complex manufacturing process and high cost. It is difficult to control the position and volume fraction of ceramics in composite materials, and the distribution of ceramics is uneven. At present, the volume ratio of ceramics and metals in composite materials and the distribution of ceramics are uneven. It cannot guarantee the good comprehensive performance and wear resistance of the material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The composite material of this embodiment uses steel as a matrix and a multiphase honeycomb ceramic as a reinforcing phase, and the matrix and the reinforcing phase are combined into one body by a casting method. The base steel material is high chromium cast iron; the reinforcing phase is ZrO 2 -Al 2 O 3 Multiphase honeycomb ceramics. ZrO 2 -Al 2 O 3 ZrO in composite honeycomb ceramics 2 The content is 60%, the rest is Al 2 O 3 . The preparation process is as follows:

[0019] 1. Treatment of multiphase honeycomb ceramics

[0020] 1.1 Basic mechanical handling

[0021] Polish the ceramic to the required roughness.

[0022] 1.2 Degreasing the surface

[0023] In order to remove dust and oil pollution on the ceramic surface and increase its surface wettability, the substrate is soaked in absolute alcohol for about 20 minutes.

[0024] 1.3 Surface roughening

[0025] Use more than 80% (volume percentage) of HF to soak the ceramics for 20-40 minutes.

[0026] 1.4 Sensitization

[0027...

Embodiment 2

[0043] This embodiment is basically the same as Embodiment 1, except that the metal material plated on the surface of the multiphase honeycomb ceramic is different in the step of 1.6 surface plating active metal. The metal plated on the surface of the composite honeycomb ceramic of this embodiment is titanium, and the titanium plating process is as follows:

[0044] In this embodiment, the titanium plating is performed on the arc-added glow ion permeation furnace. The used arc source arc target material is pure titanium with a purity of 99.99% and a size of <65mm×42mm. Titanium plating time is 3-12min. Titanium metal has poor high temperature stability and is easily oxidized or nitridated in the air, forming titanium oxide and titanium nitride with high melting point and not easy to wet. Therefore, during high-temperature cooling, after the arc power supply and the negative bias voltage are cut off, a large amount of argon should be filled immediately to ensure a sufficient sup...

Embodiment 3

[0050] This embodiment is basically the same as Embodiment 1, except that the steel matrix of the composite material of this embodiment uses low alloy steel. Corresponding changes in the metal smelting process and heat treatment process steps are as follows:

[0051] In the metal smelting process, the feeding sequence should be paid attention to when smelting, the smelting temperature should be controlled at 1580~1600℃, and it will be poured quickly after being discharged. In order to prevent the temperature difference between the ladle and the molten iron from being too large, causing the temperature of the molten iron to be too low and causing uneven structure, the ladle must be preheated before being released from the furnace. The pouring temperature is controlled at 1400~1450℃.

[0052] In the heat treatment process steps, the parameters of annealing, quenching and tempering are changed. The annealing process is: heat preservation at 900°C for 3 hours and furnace cooling. The...

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Abstract

The invention discloses a multi-phase honeycomb ceramic and steel composite material and a preparation method thereof. The composite material uses steel as matrix and multi-phase honeycomb ceramic as enhanced phase, and adopts a casting method to composite the matrix and the enhanced phase into one; when manufacturing, firstly, surface pretreatment is carried out on ZrO2-Al2O3 multi-phase honeycomb ceramic; secondly, ZrO2-Al2O3 multi-phase honeycomb ceramic is fixed in a sand mould; and finally, smelted steel metal liquid is cast into a casting mould, and the multi-phase honeycomb ceramic and steel composite material are obtained after cooling and solidification molding. The composite material has low cost, good abrasive resistance and toughness, is mainly used for crushing materials in the fields of metallurgy, building materials, mines, refractory materials and electric power and the like and grinding wear-resistant parts of equipment.

Description

Technical field [0001] The invention relates to the technical field of ceramic reinforced metal composite wear-resistant materials, in particular to a composite honeycomb ceramic and steel composite material and a preparation method thereof. Background technique [0002] Metal-ceramic composite wear-resistant materials are mainly used in material crushing and grinding equipment in metallurgy, building materials, mining, refractory materials and electric power and other fields, such as roller sleeves, liners, grinding rings, grinding discs, etc., to meet more Developed for high wear resistance requirements. Metal-ceramic composite materials mainly refer to a type of composite material with a metal as a matrix and a ceramic reinforcement phase. The non-metallic parts mainly include: oxides, borides, nitrides and silicides. Non-metallic components make the metal-ceramic composite material have the required hardness and wear resistance. The performance of the metal-ceramic composite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/02C22C1/10
Inventor 孙玉福赵靖宇吴娜徐栩
Owner ZHENGZHOU UNIV
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