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Ceramic material, and preparation method and applications thereof

A technology of ceramics and ceramic bodies, applied in the field of refrigeration equipment, can solve the problems of affecting the environment, pollution, and increasing the cost of rolling piston blank castings, and achieve the effects of improving hardness and wear resistance, and improving comprehensive performance.

Active Publication Date: 2014-01-15
ANHUI MEIZHI PRECISION MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the continuous increase in the price and cost of molybdenum Mo, nickel Ni, and chromium Cr in recent years, the cost of rolling piston rough castings is also increasing; at the same time, rolling pistons are produced by casting methods, and the casting process will generate a lot of "three wastes", which seriously affects the environment. Pollution will also affect the health of operators

Method used

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  • Ceramic material, and preparation method and applications thereof
  • Ceramic material, and preparation method and applications thereof
  • Ceramic material, and preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] raw material:

[0039]

[0040]

[0041] First, 80% by weight of aluminum oxide, 5% by weight of calcium carbonate oxide, and 5% by weight of silicon dioxide are mixed and ground, then add 5% by weight of aluminum oxide whiskers (L=10 microns; d=1 micron) and 5% by weight of other additives are mixed together, then cold-pressed, and then the pre-sintered sample in an oxidizing atmosphere is placed in a hot isostatic pressing furnace and filled with

[0042] 100-200MPa inert gas Ar, heat preservation at 1200-1800 degrees Celsius for 2-3 hours for hot isostatic sintering to obtain ceramic pistons, and send the product pistons for inspection.

Embodiment 2

[0044] raw material:

[0045]

[0046] The preparation method is the same as in Example 1, and the product piston is sent for inspection.

Embodiment 3

[0048] raw material:

[0049]

[0050] The preparation method is the same as in Example 1, and the product piston is sent for inspection.

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Abstract

The invention provides a ceramic material, and a preparation method and applications thereof. The ceramic material comprises a ceramic body and a whisker, wherein the whisker is at least one selected from aluminium oxide, titanium carbide, silicon carbide, titanium nitride, aluminium nitride and aluminum oxynitride; and the whisker, oxides containing silicon and oxides containing calcium are formed in the ceramic body. The ceramic material is light in weight, high in hardness, and excellent in wear resistance and lubricity.

Description

technical field [0001] The invention relates to the field of refrigeration equipment. Specifically, the present invention relates to ceramics, a preparation method of the ceramics, a piston made of the ceramics, a compressor and a refrigeration device having the pistons. Background technique [0002] Due to its simple structure and complete cooling and lubrication systems, rotary compressors have great advantages in small refrigeration systems, and have been widely used in household air conditioners and small commercial refrigeration devices since the 1960s. The compression cavity is the core component of the rotary compressor. The compression cavity is mainly composed of a cylinder, sliding vane, rolling piston, crankshaft, main bearing and auxiliary bearing. The rolling piston is sleeved on the eccentric part of the crankshaft. As the crankshaft rotates, it reciprocates and rolls along the inner wall of the cylinder. The sliding plate is in close contact with the surface ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/81C04B35/10F04C29/00F04C29/06
Inventor 王小伟夏小鸽
Owner ANHUI MEIZHI PRECISION MFG
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