Al 3003 pulver
Al 3003-pulver är ett aluminiumlegeringspulver som huvudsakligen består av aluminium och mangan. Den tillhör 3xxx-serien av aluminiumlegeringar, som är kända för sin utmärkta bearbetbarhet och korrosionsbeständighet. Pulverformen möjliggör enkel hantering och bearbetning, vilket gör den lämplig för olika tillverkningstekniker.
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Innehållsförteckning
Overview of Al 3003 Powder
Al 3003 or 3A21 aluminum is a wrought alloy known for its good cold formability, weldability and corrosion resistance. The manganese additions enhance strength through solid solution strengthening while maintaining workability.
Key characteristics of Al 3003 powder include:
- Moderate strength with good ductility
- Excellent formability and weldability
- God korrosionsbeständighet
- Hög termisk och elektrisk ledningsförmåga
- Låg densitet
- Available in a range of powder sizes and shapes
Al 3003 powder is used widely in chemical tanks, pipeline, automotive parts, heat exchangers, utensils, and other applications needing moderate strength, formability and corrosion resistance.
Chemical Composition of Al 3003 Powder
The typical chemical composition of Al 3003 powder is:
| Element | Vikt % |
|---|---|
| Aluminium (Al) | Balans |
| Mangan (Mn) | 1.0-1.5% |
| Järn (Fe) | 0,7% max |
| Kisel (Si) | 0,6% max |
| Koppar (Cu) | 0.05-0.20% |
| Zink (Zn) | 0,10% max |
| Magnesium (Mg) | 0,10% max |
| Krom (Cr) | 0,10% max |
Manganese is the main alloying element in 3003 aluminum. Iron, silicon and copper are present as impurity elements. The composition is controlled to ensure optimal properties.
Properties of Al 3003 Powder
Al 3003 powder possesses the following properties:
| Fastighet | Värde |
|---|---|
| Täthet | 2,73 g/cm3 |
| Smältpunkt | 645-650°C |
| Termisk konduktivitet | 180 W/mK |
| Elektrisk konduktivitet | 43-44% IACS |
| Young's modul | 68-72 GPa |
| Poissonförhållande | 0.33 |
| Draghållfasthet | 145-185 MPa |
| Utbyteshållfasthet | 110-140 MPa |
| Töjning | 12-20% |
| Hårdhet | 35-55 Brinell |
Legeringen erbjuder måttlig hållfasthet med utmärkt duktilitet och formbarhet. Den har god motståndskraft mot atmosfärisk korrosion. Termisk och elektrisk ledningsförmåga är hög.
Production Method for Al 3003 Powder
Commercial production processes used for Al 3003 powder include:
- Atomisering av gas – Molten alloy stream disintegrated by high pressure inert gas jets into fine spherical powders.
- Atomisering av vatten – High velocity water jet impacts and disintegrates molten metal stream to produce fine powders.
- Mekanisk fräsning – Ball milling of aluminum flakes/powders to achieve finer particle sizes and powder characteristics.
- Elektrolys – Aluminum produced through electrolysis process and ground to fine powder. Lower purity.
Gas atomization provides the best control over particle size distribution, morphology and microstructure of the powder.
Applications of Al 3003 Powder
Al 3003 powder is used in the following main applications:
- Additiv tillverkning – Selective laser melting, binder jetting and other 3D printing processes to produce complex components.
- Pulvermetallurgi – Compaction and sintering to create parts with good mechanical properties and machinability.
- Formsprutning av metall – To manufacture small intricate components for automotive and electronics industry.
- Termisk sprutning – Wire arc spraying to deposit Al 3003 coatings offering moderate wear and corrosion resistance.
- Fyllmedel för svetsning – Used as filler wire for arc welding and repair of aluminum components.
- Pigment – Used in paints and coatings to provide luster and corrosion protection.
- Pyroteknik – Added to pyrotechnic compositions as fuel due to flammability of aluminum.
Specifications of Al 3003 Powder
Al 3003 powder is available under different size ranges, shapes and purity levels:
- Partikelstorlek: From 10-150 microns for AM methods, up to 300 microns for thermal spray.
- Morfologi: Spherical, granular, flake and irregular particle shapes. Smooth powder flows better.
- Renhet: From commercial to high purity (99.8%) grades tailored for applications.
- Flytbarhet: Pulver kundanpassat för flöden över 25 s/50 g.
- Betyg: Conforming to ASTM B209, EN 573-3, ISO 209:2007 etc. Custom grades offered.
Global Suppliers of Al 3003 Powder
Some of the major Al 3003 powder suppliers globally are:
- Valimet Inc, USA
- Makin Metal Powders, UK
- Metal Powder Company, USA
- Shanghai Chaowei Nanotechnology, China
- AMETEK Reading Alloys, USA
- CNPC Powder Group, China
- SCM Metal Products, USA
These companies produce Al 3003 powder suitable for additive manufacturing, thermal spray, welding, powder metallurgy and other uses.
Al 3003 Powder Pricing
Pricing of Al 3003 powder depends on factors like:
- Renhetsnivåer
- Fördelning av partikelstorlek
- Pulvrets egenskaper
- Orderkvantitet
- Ytterligare bearbetning
- Leverantör och plats
| Betyg | Prisintervall |
|---|---|
| Kommersiell | $3-8 per kg |
| Hög renhet | $8-15 per kg |
| Ultrafin | $15-30 per kg |
| Särskild klass | $30-60 per kg |
Ultrafine, spherical and gas atomized powders command much higher pricing than regular commercial grades.
Storage and Handling of Al 3003 Powder
Al 3003 powder should be properly stored and handled to prevent:
- Oxidation och reaktion med fukt
- Dust explosions from powder ignition
- Inhalation of fine powder causing health issues
- Safety practices advised by supplier should be followed
Förvaring av inert gas, tillräcklig ventilation, jordning och personlig skyddsutrustning rekommenderas vid hantering av pulvret.
Test- och karakteriseringsmetoder
Key test methods used for Al 3003 powder include:
- Kemisk analys med hjälp av OES eller XRF för sammansättning
- Partikelstorleksfördelning enligt ASTM B822-standarden
- Morfologisk analys genom SEM-bildtagning
- Flow rate measurement using Hall flow funnel
- Densitetsbestämning med heliumpyknometri
- Impurities testing by ICP-MS
- Mikrostrukturundersökning med röntgendiffraktion
These testing methods ensure reliable and consistent quality of the aluminum alloy powder.
Comparison Between Al 3003 and Al 6061 Powders
Al 3003 and Al 6061 are two aluminum alloy powders compared:
| Parameter | Al 3003 | Al 6061 |
|---|---|---|
| Legeringstyp | Ej värmebehandlingsbar | Värmebehandlingsbar |
| Mn-innehåll | 1.0-1.5% | 0,15% max |
| Mg-innehåll | 0,1% max | 0.8-1.2% |
| Styrka | Måttlig | Högre |
| Korrosionsbeständighet | Bra | Utmärkt |
| Svetsbarhet | Utmärkt | Bra |
| Kostnad | Lägre | Högre |
| Tillämpningar | Chemical tanks, utensils | Aerospace, automotive parts |
Al 6061 offers higher strength while Al 3003 provides better weldability and formability at a lower cost.
Al 3003 Powder FAQs
Q: How is Al 3003 powder produced?
A: Al 3003 powder is commercially produced using gas atomization, water atomization, mechanical milling, and electrolysis processes. Gas atomization offers the best control of particle characteristics.
Q: What are the main applications for Al 3003 powder?
A: Key applications include additive manufacturing, thermal spraying, powder metallurgy, metal injection molding, welding filler, pigments, and pyrotechnic compositions.
Q: What is the typical Al 3003 powder size used for laser sintering?
A: For selective laser sintering process, the common Al 3003 powder size range is 20-53 microns with spherical morphology for optimal powder bed density.
Q: Does Al 3003 powder require any special handling precautions?
A: Yes, aluminum powders can be flammable and pose explosion risks. It is recommended to handle them carefully under inert atmosphere using proper grounding, ventilation and PPE.
Q: Where can I procure Al 3003 powder suitable for thermal spray coatings?
A: Companies like Valimet, Makin Metal Powders, and AMETEK offer Al 3003 grades suitable for wire arc spray and flame spray coatings needing moderate wear and corrosion resistance.
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