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Ceramic trunk piston for medical equipment and preparation method thereof

A ceramic plunger and medical equipment technology, applied in the field of high-quality ceramic plunger, can solve the problems of affecting equipment use efficiency, short service life, poor wear resistance, etc., and achieve high strength, long service life and low pore concentration Effect

Inactive Publication Date: 2008-09-24
湖南泰鑫瓷业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] A large number of plungers of various specifications are used in medical equipment. In the past, they were generally made of stainless steel, glass and hard polymer materials. The service life is short and needs to be replaced frequently. After the plunger is replaced, the equipment must be tested and adjusted before it can be used again, which seriously affects the efficiency of the equipment.

Method used

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  • Ceramic trunk piston for medical equipment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0027] Example 1. The ceramic plunger for medical equipment is completed by the following raw materials and steps:

[0028] raw material selection

[0029] (1) According to the following formula ingredients

[0030] AL 2 o 3 99.2%

[0031] Y 2 o 3 +CeO 2 +Nb 2 o 5 0.5%

[0032] MgO 0.3%

[0033] Proceed as follows

[0034] (2) Adopt conventional chemical co-precipitation to make powder, and control the original crystal material of the raw material to be less than 0.3 μm;

[0035] (3) Use a conventional high-energy ball mill to refine the particles so that the particle size is ≤0.7 μm;

[0036] (4) Adopt conventional spray-drying granulation and multi-stage sieving to make the granulation full without gaps and good fluidity;

[0037] (5) Formed by conventional isostatic pressing with a pressure > 150MPa;

[0038] (6) Sintering by conventional low-temperature rapid sintering technology, so that the crystal grains in the porcelain a...

example 2

[0040] Example 2. The ceramic plunger for medical equipment is completed by the following raw materials and steps:

[0041] raw material selection

[0042] (1) According to the following formula ingredients

[0043] AL 2 o 3 70%

[0044] Y 2 o 3 +CeO 2 +Nb 2 o 5 5.6%

[0045] MgO 0.3%

[0046] ZrO 2 24.1%

[0047] The production steps are the same as Example 1.

example 3

[0048] Example 3. The ceramic plunger for medical equipment is completed by the following raw materials and steps:

[0049] raw material selection

[0050] (1) According to the following formula ingredients

[0051] Y 2 o 3 +CeO 2 +Nb 2 o 5 56%

[0052] ZrO 2 94%;

[0053] The production steps are the same as Example 1.

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Abstract

The present invention relates to a ceramic plunger piston that is used in the medical equipment and a method for producing the ceramic plunger, which is configured by the raw materials such as AL2O3, ZrO2, MgO and Y2O3+CeO2+Nb2o5, namely, the present invention adopts 99 percent of aluminum oxide, zirconia toughened aluminum oxide and anti-aging four-phase zirconia ceramic material with the composite stability agent to produce the ceramic plunger piston in the ways of forming in high pressure, fast-baking in low temperature and precise processing. The ceramic plunger piston has the advantages of high strength, high rigidness, good abrasion prevention, good surface smooth finish, low pore wave amplitude, small size, low friction coefficient and strong biological inertia, thereby having long service life and being free from replacing when being used in the equipment.

Description

technical field [0001] The invention relates to high-quality ceramic plungers of various specifications and models used in a medical device. Background technique [0002] A large number of plungers of various specifications are used in medical equipment. In the past, they were generally made of stainless steel, glass and hard polymer materials. The service life is short and needs to be replaced frequently. After the plunger is replaced, the equipment must be tested and adjusted before it can be used again, which seriously affects the efficiency of the equipment. Contents of the invention [0003] The object of the present invention is to overcome the above-mentioned defects, and provide a ceramic plunger for medical equipment with good wear resistance, high surface finish, small frictional resistance and long service life and its manufacturing method. [0004] Technical scheme of the present invention is: [0005] A method for manufacturing a ceramic plunger for medical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/10C04B35/48C04B35/622
Inventor 周朝阳潘俊明
Owner 湖南泰鑫瓷业有限公司
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