A kind of preparation method of ceramic particle metal composite material

Abstract

The invention provides a preparation method of a ceramic particle metal composite material. The preparation method comprises the following steps that ceramic particles are subjected to surface pretreatment and then placed into a chemical plating solution, and thus nickel-plated ceramic particles are obtained; an electric heating resistance wire is used for cutting a foam plate; the nickel-plated ceramic particles are washed and dried, and then coats the surface of a foam specimen, after drying, the foam specimen is bonded with a cross gate, a sprue and an ingate, and thus a lost foam casting white foam is obtained; the prepared lost foam casting white foam is placed into a sand box filled with dry sand, the dry sand is vibrated to be compacted and scraped to be flat, a plastic thin film isused for covering, a pouring cup is placed, and the negative pressure is pumped; after the dry sand is firm and is formed, metal liquid is cast; and after casting, vacuum relief, cooling and solidification then polishing are conducted. According to the preparation method of the ceramic particle metal composite material, the Rockwell hardness, impact toughness and overall abrasion resistance of the prepared composite material are greatly improved, no element diffusion exists between the ceramic particles and a metal substrate at the composite interface, and the bonding strength between the ceramic particles and metal is high.

Description

technical field

[0001] The invention relates to the field of composite materials, in particular to a method for preparing ceramic particle metal composite materials. Background technique

[0002] As we all know, two objects that are in contact with each other or moving relative to each other will have friction on their surfaces. In general, friction is often accompanied by wear, and when the wear reaches a certain level, it will inevitably lead to the failure of various machines or parts. a great safety hazard. my country is also a big manufacturing country. In our country, departments such as metallurgy, mining, building materials, electric power, and coal use a lot of mining machinery, engineering machinery, and various crushing and grinding equipment. These equipment generally operate in harsh industrial environments. Under the circumstances, some parts will consume a large amount of metal every year due to the wear and tear of sand, ore, soil and other materials and grin...

Examples

preparation example Construction

[0029] A method for preparing a ceramic particle-metal composite material, comprising the following steps:

[0030] Ceramic particles are put into electroless plating solution after carrying out surface pretreatment, obtain nickel-plated ceramic particles, and described chemical plating solution comprises 8g / LNiSO 4 , 30g / LNaH 2 PO 2 ·H 2 O, 15g / LCH 3 COONa, 25g / L sodium citrate, 8ml / L lactic acid C 3 h 6 o 3 , when preparing NiSO 4 The solution was slowly added to the sodium citrate solution, followed by the completely dissolved NaH 2 PO 2 ·H 2 O solution, followed by CH at the end 3 COONa, lactic acid; cut the foam plate with electric resistance wire to obtain foam samples, runners, sprues and inner runners; wash and dry the nickel-plated ceramics, and then coat the surface of the foam samples and bake After drying, the foam sample, the runner, the sprue and the inner runner are bonded into one, and the paint is soaked and then dried to obtain the lost foam white ...

Embodiment 1

[0051] Grind zirconium corundum ceramic particles with sandpaper to achieve a predetermined roughness;

[0052] Put the polished zirconium corundum ceramic particles in absolute alcohol, clean them with ultrasonic vibration for 15 minutes, and dry them after cleaning;

[0053] Put the decontaminated zirconium corundum ceramic particles into the roughening solution, the temperature of the roughening solution is 15°C, and the roughening time is 4 minutes;

[0054] Take out the roughened zirconium corundum ceramic particles, wash and dry them, put them in the sensitizing solution, and sensitize them at room temperature for 8 minutes, take out the sensitized zirconium corundum ceramic particles, and put them in an acetone solution for ultrasonic cleaning. drying;

[0055] The sensitization solution includes 40g / LSnCl 2 and 4% HCl, the SnCl 2 Add to HCl solution, then dilute with water, if there is white precipitate formed, filter the sensitization solution; put the zirconium co...

Embodiment 2

[0064] Grind zirconium corundum ceramic particles with sandpaper to achieve a predetermined roughness;

[0065] Put the polished zirconium corundum ceramic particles in absolute alcohol, clean them with ultrasonic vibration for 20 minutes, and dry them after cleaning;

[0066] Put the decontaminated zirconium corundum ceramic particles into the roughening solution, the temperature of the roughening solution is 30°C, and the roughening time is 5 minutes;

[0067] Take out the roughened zirconium corundum ceramic particles, wash and dry them, put them in a sensitizing solution, and sensitize them at room temperature for 12 minutes, take out the sensitized zirconium corundum ceramic particles, and put them in an acetone solution for ultrasonic cleaning. drying;

[0068] The sensitization solution includes 40g / LSnCl 2 and 4% HCl, the SnCl 2 Add to HCl solution, then dilute with water, if there is white precipitate formed, filter the sensitization solution; put the zirconium cor...

technical field

[0001] The invention relates to the field of composite materials, in particular to a method for preparing ceramic particle metal composite materials. Background technique

[0002] As we all know, two objects that are in contact with each other or moving relative to each other will have friction on their surfaces. In general, friction is often accompanied by wear, and when the wear reaches a certain level, it will inevitably lead to the failure of various machines or parts. a great safety hazard. my country is also a big manufacturing country. In our country, departments such as metallurgy, mining, building materials, electric power, and coal use a lot of mining machinery, engineering machinery, and various crushing and grinding equipment. These equipment generally operate in harsh industrial environments. Under the circumstances, some parts will consume a large amount of metal every year due to the wear and tear of sand, ore, soil and other materials and grin...

Examples

preparation example Construction

[0029] A method for preparing a ceramic particle-metal composite material, comprising the following steps:

[0030] Ceramic particles are put into electroless plating solution after carrying out surface pretreatment, obtain nickel-plated ceramic particles, and described chemical plating solution comprises 8g / LNiSO 4 , 30g / LNaH 2 PO 2 ·H 2 O, 15g / LCH 3 COONa, 25g / L sodium citrate, 8ml / L lactic acid C 3 h 6 o 3 , when preparing NiSO 4 The solution was slowly added to the sodium citrate solution, followed by the completely dissolved NaH 2 PO 2 ·H 2 O solution, followed by CH at the end 3 COONa, lactic acid; cut the foam plate with electric resistance wire to obtain foam samples, runners, sprues and inner runners; wash and dry the nickel-plated ceramics, and then coat the surface of the foam samples and bake After drying, the foam sample, the runner, the sprue and the inner runner are bonded into one, and the paint is soaked and then dried to obtain the lost foam white ...

Embodiment 1

[0051] Grind zirconium corundum ceramic particles with sandpaper to achieve a predetermined roughness;

[0052] Put the polished zirconium corundum ceramic particles in absolute alcohol, clean them with ultrasonic vibration for 15 minutes, and dry them after cleaning;

[0053] Put the decontaminated zirconium corundum ceramic particles into the roughening solution, the temperature of the roughening solution is 15°C, and the roughening time is 4 minutes;

[0054] Take out the roughened zirconium corundum ceramic particles, wash and dry them, put them in the sensitizing solution, and sensitize them at room temperature for 8 minutes, take out the sensitized zirconium corundum ceramic particles, and put them in an acetone solution for ultrasonic cleaning. drying;

[0055] The sensitization solution includes 40g / LSnCl 2 and 4% HCl, the SnCl 2 Add to HCl solution, then dilute with water, if there is white precipitate formed, filter the sensitization solution; put the zirconium co...

Embodiment 2

[0064] Grind zirconium corundum ceramic particles with sandpaper to achieve a predetermined roughness;

[0065] Put the polished zirconium corundum ceramic particles in absolute alcohol, clean them with ultrasonic vibration for 20 minutes, and dry them after cleaning;

[0066] Put the decontaminated zirconium corundum ceramic particles into the roughening solution, the temperature of the roughening solution is 30°C, and the roughening time is 5 minutes;

[0067] Take out the roughened zirconium corundum ceramic particles, wash and dry them, put them in a sensitizing solution, and sensitize them at room temperature for 12 minutes, take out the sensitized zirconium corundum ceramic particles, and put them in an acetone solution for ultrasonic cleaning. drying;

[0068] The sensitization solution includes 40g / LSnCl 2 and 4% HCl, the SnCl 2 Add to HCl solution, then dilute with water, if there is white precipitate formed, filter the sensitization solution; put the zirconium cor...