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Zirconium oxide ceramic cylinder sleeve material and preparation method thereof

A technology of zirconia ceramics and zirconia, which is applied in the field of ceramic materials, can solve problems such as unfavorable production and operation, increased service temperature, and high sintering temperature, and achieve the effects of reducing friction coefficient, improving wettability, and reducing sintering temperature

Active Publication Date: 2017-05-24
ANHUI TUOJITAI NOVEL CERAMIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to improve the service life of the cylinder liner, the Chinese invention patent application published on August 26, 2009 with the publication number CN101514104A proposes a zirconia-based ceramic cylinder liner material lining, which can increase the life of the traditional metal cylinder liner by 5 ~10 times, but its sintering temperature reaches 1550~1600℃
The sintering temperature of zirconia ceramics is too high, which is not conducive to production and operation
In addition, the temperature of the ceramic cylinder liner increases after a long time of use, and it has a large friction force, which is easy to cause damage to the cylinder liner

Method used

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  • Zirconium oxide ceramic cylinder sleeve material and preparation method thereof
  • Zirconium oxide ceramic cylinder sleeve material and preparation method thereof
  • Zirconium oxide ceramic cylinder sleeve material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A zirconia ceramic cylinder liner material, comprising the following raw materials:

[0028] Zirconia 80kg, yttrium oxide 4kg, neodymium oxide 3kg, graphite 3kg and molybdenum carbide 10kg.

[0029] The preparation method comprises the following steps:

[0030] 1) Pretreatment: Weighing graphite and molybdenum carbide according to the proportion, soaking them in 1mol / L dilute nitric acid for 30 minutes, and then separating solid and liquid to obtain pretreated graphite and molybdenum carbide;

[0031] 2) Ball mill powder: Weigh zirconia, 100 million oxide and neodymium oxide according to the ratio, and then mix them with pretreated graphite and molybdenum carbide and add them to the ball mill to form a mixed powder, and then add 1.4 kg methylcellulose and 1.4kg polymethacrylate, then start the ball mill to obtain the slurry;

[0032] 3) Granulation: Spray-dry the slurry obtained in step 2) in a granulation spray tower, remove the moisture therein to obtain granulated ...

Embodiment 2

[0037] A zirconia ceramic cylinder liner material, comprising the following raw materials:

[0038] 82kg of zirconia, 5kg of yttrium oxide, 4kg of neodymium oxide, 1kg of graphite and 8kg of molybdenum carbide, wherein the graphite and molybdenum carbide need to be soaked in dilute nitric acid first, and then separated from solid and liquid.

[0039] The preparation method of zirconia ceramic cylinder liner material comprises the following steps:

[0040] 1) Pretreatment: Weighing graphite and molybdenum carbide according to the ratio, soaking in 0.5mol / L dilute nitric acid for 40 minutes, and then separating solid and liquid to obtain pretreated graphite and molybdenum carbide;

[0041] 2) Ball milling powder: Weigh zirconia, 100 million oxide and neodymium oxide according to the proportion, then mix them with pretreated graphite and molybdenum carbide and add them to the ball mill to form a mixed powder, and then add 2kg to the mixed powder Methyl cellulose and 2kg polymeth...

Embodiment 3

[0047] A zirconia ceramic cylinder liner material, comprising the following raw materials:

[0048] Zirconia 79kg, yttrium oxide 5kg, neodymium oxide 4.5kg, graphite 4kg and molybdenum carbide 7.5kg.

[0049] The preparation method comprises the following steps:

[0050] 1) Pretreatment: Weighing graphite and molybdenum carbide according to the proportion, soaking them in 2mol / L dilute nitric acid for 25 minutes, and then separating solid and liquid to obtain pretreated graphite and molybdenum carbide;

[0051] 2) Ball milling powder: Weigh zirconia, 100 million oxide and neodymium oxide according to the proportion, and then mix them with pretreated graphite and molybdenum carbide and add them to the ball mill to form a mixed powder, and then add 2kg to the mixed powder Methylcellulose and 2kg polymethacrylic acid amine, then start the ball mill to obtain the slurry;

[0052] 3) Granulation: Spray-dry the slurry obtained in step 2) in a granulation spray tower, remove the mo...

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Abstract

The invention provides a zirconium oxide ceramic cylinder sleeve material and a preparation method thereof. The zirconium oxide ceramic cylinder sleeve material is prepared from the following raw materials of 65 to 85% of zirconium oxide, 3 to 5% of yttrium oxide, 2.5 to 4.5% of neodymium oxide, 1 to 5 % of graphite, and 5 to 10% of molybdenum carbide. The preparation method comprises the following steps of (1) pretreatment: weighing the graphite and the molybdenum carbide according to a proportional ratio, soaking by dilute nitric acid to treat, and separating solid and liquid, so as to obtain the pretreated graphite and molybdenum carbide; (2) performing ball milling on the raw materials to obtain a slurry; (3) granulating: spraying the slurry, and granulating; (4) putting the granulating powder in the step (3) into a die, pre-forming and pressing, and performing cold isostatic pressure treatment, so as to obtain a blank; (5) pre-calcining the blank in step (4), and removing an adhesive out of the blank; (6) sintering the blank in step (5), and densifying the blank into ceramic, so as to obtain the zirconium oxide ceramic cylinder sleeve material. The zirconium oxide ceramic cylinder sleeve material has the characteristics that the abrasion-resistant, corrosion-resistant and high temperature-resistant properties are realized, and the friction coefficient is little.

Description

technical field [0001] The invention belongs to the technical field of ceramic materials, and in particular relates to a zirconia ceramic cylinder liner material and a preparation method thereof. Background technique [0002] At present, most mud pump cylinder liner materials are composite metal materials. Due to the harsh working environment of the mud pump, metal materials are susceptible to wear and corrosion, resulting in a short service life of the cylinder liner, and frequent replacement reduces work efficiency. Therefore, how to stabilize and improve the service life of the piston cylinder liner is an important aspect to improve the working efficiency of the mud pump. [0003] In order to improve the service life of the cylinder liner, the Chinese invention patent application published on August 26, 2009 with the publication number CN101514104A proposes a zirconia-based ceramic cylinder liner material lining, which can increase the life of the traditional metal cylin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/488C04B35/626
CPCC04B35/488C04B35/626C04B35/62605C04B35/6261C04B2235/3225C04B2235/3244C04B2235/3251C04B2235/3256C04B2235/3839C04B2235/425C04B2235/96
Inventor 宋晓超张天宇何东张天舒
Owner ANHUI TUOJITAI NOVEL CERAMIC TECH
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