Ceramic Impeller Shaft Round End with Groove Zirconia Ceramic Shaft for Aquarium Pump
The zirconia shafts were installed in the micropump and were aligned such that the concentricity during revolution was kept within +/-1100 millionth of an inch. The micropumps were run in a closed circuit loop with water as the fluid for an extended period of time such that under that condition a pump equipped with stainless steel shaft would fail. While the pump was run continuously for at least 120 hours, pressure and temperature of the discharged water were monitored for its efficiency. The pump was dismantled and all of its components were examined for any wear or damage or abnonnality. All the components were in good condition. Another pump was equipped with zirconia shaft and was placed in an emulsion coating machine. The machine yielded flawless uniform coating for longer than 1000 hours.
Gear micropump shafts were also made from 99.9% pure Al2 O3 (ALCOA grade AG-16), exactly the same way as the zirconia shafts. A set of plastic driving and driven gears was equipped with alumina shafts in a gear micropump and ran with only water. After a short while the fluid delivery speed of the pump started to fluctuate and the pressure dropped and after a while it ceased to work. The pump was disassembled and thoroughly examined. It was noticed that the seat on which the shaft was residing was slightly worn out and one of the shafts (driving gear shaft) was chipped and non-functional. A new pair of shafts were installed and pumped photographic emulsion for experimental web coating. After a short duration (approximately 24 hours), the pump delivery system started mildly pulsating causing non-uniform coating. The pump was allowed to run for longer than a week while the pulsation persisted and generated non-uniform coating. The pump was stopped, disassembled, and examined. The shafts chipped in several places and many 15 components inside the pump had wear marks. Thus, it was concluded that alumina ceramic shafts are not a good substitute for stainless steel in this application.
Although zirconia is known to be very hard and wear-resistant, yet it has high enough fracture toughness to behave like a steel. Many ceramics like Al2 O3, SiC, Si3 N4, etc. are more brittle and very prone to chipping in applications such as shafts in a gear pump. Also, many structural ceramics have higher elastic modulus and as a result they are more stiff than stainless steel and are not forgiving. Zirconia has elastic modulus comparable to stainless steel (Stainless steel: 30 mpsi and zirconia 32 mpsi). In this application, plastic gears are used and they are not of very high 25 precision. So, the shafts need to be a little forgiving to adjust for any misalignment in the enmeshing gears. Zirconia shafts are more forgiving than other structural ceramics. Alumina toughened zirconia (5-50% by weight alumina) also behaves similarly. In other words, zirconia and alumina toughened zirconia are surprisingly the best ceramic materials for this application.
Pump Component Applications
Centrifugal Pump – alumina parts are used for transportation of organic solvents, acids and slurry
Gear Pump – ceramic plain bearings are used for high viscosity, corrosive and abrasive fluids
Micro Pump – RTZ ceramic shafts, gears and other parts for precision delivery of fluids
Cavity Pump – heat and corrosion resistant ceramic rotors and stators
Ball and Faucet Valves – ceramics are used to provide excellent sealing quality and superior wear resistance
An improved gear micropump (10) for delivering corrosive materials, particularly photographic materials, such as dyes and emulsions, has a pair of intermeshing gears (16,18) rotatably mounted on zirconia ceramic shafts (24,26). The ceramic shafts of the invention may be formed from zirconia and zirconia composite materials. The gear micropump (10) having the zirconia ceramic shafts (24,26) eliminates pulsation during fluid delivery and is resistant to wear and abrasion. Moreover the zirconia ceramic shafts (24,26) are strongly resistant to chemicals like photographic emulsions and dyes and, therefore, do not contaminate product with corrosive materials.
Zirconia Ceramic Rod,ZrO2 Ceramic Shaft Specifications:
1. High thermal zirconia ceramic rod,wear-resistant bar.
2. Diameter: 1.0(-0.02)mm.
3. Length: 10(±1.0)mm.
4. The rod's diameter and length can be customized according to your requirements.
5. Product number: XF-227
||Ceramic Impeller Shaft Round End with Groove Zirconia Ceramic Shaft for Aquarium Pump
||Alumina or zirconia
||White, Black , Blue , Yellow or custom
||0.2mm - 200mm, And According to drawings
||5mm - 400mm, And According to drawings
||for gear Micropump
|Max. working temperature
||1500 -2800 °C
||Air Express (DHL/UPS/TNT/ FedEx) or Ocean Shipping
Ceramic parts we can produce:
Alumina ceramic, Zirconia ceramic , Ceramic Dowel pin, Zirconia Positioning pin, Insulating ceramic plate
Ceramic adapter plate,Ceramic centering pin,Ceramic connectors,Ceramic spinner,Ceramic roller
Ceramic blade,Ceramic brackets,Ceramic disc,Ceramic insulator,Ceramic rod,ceramic atomizer
ceramic fuse pin,ceramic nozzle,ceramic ferrule,ceramic necklace,ceramic ornament,alumina ceramic plate, ceramic cylinder, ceramic guide, ceramic pin, ceramic bushing, ceramic brick,ceramic injection molding,ceramic bushings,ceramic smoking pipe, ceramic spacer,ceramic piston pump,ceramic part
ceramic heating element vaporizer e cigarette, al2o3 ceramic, ceramic donut atomizer, alumina ceramic disc, alumina ceramic sheet , ceramic alumina , ceramic pressure sensor , ceramic sheet,
ceramic washer, zirconia ceramic plate, ceramic insert, white ceramic ring, ceramic shaft
ceramic pump, ceramic piston, ceramic nail, ceramic insulators, ceramic rod 3mm , ceramic dowel pin
ceramic pin gage , alumina ceramic parts , ceramic burr , ceramic proppant , ceramic needle
ceramic grinder, alumina ceramic rod , alumina ceramic ring, ceramic conical burr , ceramic heater rod
ceramic gear , machinable ceramic, ceramic arms , white ceramic ornaments , sustained high temperature on ceramics
Mingrui offers you a wide range of production facilities like extrusion, injection moulding, pressing and casting. Depending on product geometry and quantities, we will choose the suitable technique for your products.For the final finishing of the parts we use CNC machining centres, equipped with diamond tools in order to meet high accuracies.
Our aim is to offer the ideal solution for any application. Our engineers therefore offer custom solutions that range beyond our existing product portfolio. With our well-equipped industrial development facilities, we produce innovations that can be rapidly commercially exploited.
Properties Sheet of zirconia and alumina :
||g / cm³
|Coefficient of thermal expansion
|Modulus of Elasticity Young's Mod
|HV Hardness HV
|Flexural Strength @ room temperature
|Flexural Strength @700°C
|Compressive Strength @ room temperature
||MPa *m 1/2
|Heat conductivity @ room temperature
|Electrical Resistivity @ room temperature
|Max use temperature
|Resistance to acid alkaline
|Thermol Shock Resistance
||△ T ( °C )
|Tensile Strength @ 25 °C
1) High hardness.
2) High heat resistance: alumina ceramic has excellentthermal stability,which means that it is widely used in areas where resistance to high temperatures is essential.
3) Good wear resistance: alumina ceramic is the material of choice for alumina wear parts.
4) High electrical resistivity: alumina is an electrically insulating material.
5) High corrosion resistance: it is insoluble in water and only slightly soluble in strong acid and alkaline solutions. Good chemical stability of alumina leads to high corrosion resistance.
Mingrui ceramic manufacture and provides alumina ceramic components for a wide range of application like Mechanical Equipment, Electronic & Electrical, Oil Drilling, Medical, Chemical Industry etc. According to actual application and customer's requirement, the purities vary from 95%-99.7% and the forming methods will be different. The forming methods applied in our plant include dry pressing, isostatic pressing, injection moulding, extrusion moulding. With experienced engineers and talented workers, we are confident to offer high quality, high precision, complex components for customers worldwide.
Mingrui Ceramics has years of experience designing and developing technical ceramic solutions for a wide variety of applications and industries.Wear And Corrosion Resistant Ceramic Shaft Chemical Stirring Rod. We offer this expertise to all of our customers to ensure the best design and materials are chosen for their specific application and needs.Wear And Corrosion Resistant Ceramic Shaft Chemical Stirring Rod,Typically, our custom technical ceramic components and parts we supply are used for one of three main reasons:
Drawings and more photos :
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