Zuiver aluminiumpoeder

Overview of Pure Aluminum Powder

Zuiver aluminiumpoeder bevat 99% of een hoger aluminiumgehalte. Het biedt een lage dichtheid gecombineerd met goede ductiliteit, geleidbaarheid en corrosieweerstand.

Key properties and advantages of pure aluminum powder include:

Pure Aluminum Powder Properties and Characteristics

Eigenschappen	Details
Samenstelling	99% or higher Al content
Dikte	2,7 g/cc
Deeltjesvorm	Bolvormig, onregelmatig
Maatbereik	1-150 micron
Schijnbare dichtheid	Tot 50% ware dichtheid
Geleidbaarheid	Excellent electrical and thermal conductivity
Corrosieweerstand	Good due to protective oxide layer

Pure aluminum powder is suitable for applications like thermite welding, diamond tools, conductive coatings, pyrotechnics, and metal injection molding.

Pure Aluminum Powder Composition

Typical composition of pure aluminum powder:

Pure Aluminum Powder Composition

Element	Gewicht %
Aluminium (Al)	99% min
Silicium (Si)	Maximaal 0,5%
Ijzer (Fe)	Maximaal 0,5%
Koper (Cu)	Maximaal 0,05%
Mangaan (Mn)	Maximaal 0,05%
Magnesium (Mg)	Maximaal 0,05%
Other impurities	Maximaal 0,05%

• Aluminum provides low density, ductility and conductivity
• Impurity levels of other elements are carefully controlled
• High aluminum purity provides optimal electrical and thermal conductivity

The high aluminum content ensures excellent conductivity combined with good corrosion resistance and moderate strength.

Pure Aluminum Powder Physical Properties

Pure Aluminum Powder Physical Properties

Eigendom	Waarden
Dikte	2,7 g/cc
Smeltpunt	660°C
Warmtegeleiding	237 W/mK
Elektrische weerstand	2.65 μΩ-cm
CTE	23.1 x 10^-6 /K
Reflectivity	87% at 400 nm wavelength

• Very low density compared to most metals
• High reflectivity and thermal conductivity
• Low electrical resistivity provides high conductivity
• Relatief hoge CTE vereist ontwerpoverwegingen
• Maintains strength up to moderately high temperatures

The properties make pure aluminum suitable for lightweight applications needing electrical/thermal conductivity.

Pure Aluminum Powder Mechanical Properties

Pure Aluminum Powder Mechanical Properties

Eigendom	Waarden
Treksterkte	90-100 MPa
Opbrengststerkte	35-45 MPa
Verlenging	35-40%
Hardheid	25-35 HB
Vermoeidheid sterkte	50-90 MPa
Afschuifsterkte	60-65 MPa

• Relatively low tensile and yield strength
• Very high elongation provides excellent ductility
• Low hardness compared to most metals
• High fatigue strength suited for cyclic loading
• Properties can be enhanced through alloying additions

The properties make pure aluminum suitable for soft, ductile applications requiring conductivity and formability.

Pure Aluminum Powder Applications

Typical applications of pure aluminum powder include:

Pure Aluminum Powder Applications

Industrie	Toepassingen
Thermite welding	Rail welding, metal joining
Additieve productie	Low strength components
Explosives and pyrotechnics	Thermite compositions
Powder coatings	Conductive and resistant coatings
Diamond tools	Metal matrix with diamond particles
Vuurwerk	Fuel and pyrotechnic compositions

Enkele specifieke producttoepassingen:

• Thermite mixtures for in-situ metal joining and welding
• Low melting point casting alloys
• Electrically conductive coatings and RF shielding
• Aluminum-diamond tools for stone cutting
• Flash powder and pyrotechnic compositions
• Metal injection molding of non-structural parts

The ductility, conductivity and reactivity make pure aluminum suitable for these niche applications.

Pure Aluminum Powder Specifications

Key specifications for pure aluminum powder include:

Pure Aluminum Powder Specifications

Standaard	Beschrijving
ASTM B787	Standard for pure aluminum powders
ASTM B859	Specs for aluminum and aluminum alloy powders
DIN 1718-1	Designation system for aluminum and aluminum alloys
GJB320B	Chinese military standard for aluminum and aluminum alloy powders

Deze definiëren:

• Minimum 99% aluminum content
• Limits on impurities like Fe, Si
• Powder characteristics like apparent density and particle size distribution
• Approved production methods like atomization
• Sampling and testing protocols

Meeting the standards ensures suitability for applications needing high purity aluminum powder.

Pure Aluminum Powder Particle Sizes

Pure Aluminum Powder Particle Size Distribution

Maat	Kenmerken
1-10 micron	Ultrafine grade used in printing pastes
10-45 micron	Fine grade suitable for coatings, pressing
45-150 micron	Coarse grade offers better flowability

• Finer sizes provide a smooth finish and high reactivity
• Coarser powder has improved flow for automated processing
• Both spherical and irregular particle shapes are available
• Size distribution depends on targeted use

Controlling particle size distribution optimizes processing behavior, density, reactivity, and finish.

Pure Aluminum Powder Apparent Density

Pure Aluminum Powder Apparent Density

Schijnbare dichtheid	Details
Tot 50% ware dichtheid	For irregular morphology powder
1.3-1.7 g/cc	Higher for spherical powder

• Spherical powder shape provides higher apparent density
• Irregular particles have lower density around 30-40%
• Higher density improves powder flow and compactibility
• Waarden tot 60% zijn mogelijk met geoptimaliseerd bolvormig poeder

Een hogere schijnbare dichtheid leidt tot een betere productieproductiviteit en onderdeelkwaliteit.

Pure Aluminum Powder Production

Pure Aluminum Powder Production

Methode	Details
Verneveling	Molten aluminum stream broken into fine droplets that solidify into powder
Kogel malen	Mechanical milling classifies coarse powder into fine powder
Gloeien	Removes internal stresses and improves powder compressibility
Zeven	Classificeert poeder in fracties van verschillende grootte

• Atomization allows large volume production with controlled particle sizes
• Milling provides lower cost size reduction of coarse powder
• Annealing and sieving provide customized powder sizes and shapes

Combination of methods produces high purity aluminum powder with application-specific characteristics.

Pure Aluminum Powder Pricing

Pure Aluminum Powder Pricing

Factor	Impact op de prijs
Puurheid	Hogere zuiverheidsgraden kosten meer
Deeltjesgrootte	Ultrafijn poeder is duurder
Bestelvolume	Bulk orders get discounted pricing
Productie methode	Complexe methoden verhogen de kosten
Verpakking	Special packaging adds cost

Indicatieve prijzen

• Fine pure aluminum powder: $3-6 per kg
• Coarse pure aluminum powder: $2-4 per kg
• Large volume pricing can be up to 30% lower

Pricing depends on purity, particle size, order quantity, production method and customization requirements.

Pure Aluminum Powder Suppliers

Pure Aluminum Powder Suppliers

Bedrijf	Plaats
Advanced Chemical Company	VS
Micron metalen	VS
Baohua Metal Materials	China
Hengxing Metallurgical	China
Shanghai ShuiDing Powder Material	China
Reade Geavanceerde Materialen	VS

Selectiefactoren voor leveranciers:

• Purity levels and grades available
• Productiecapaciteit en doorlooptijden
• Average particle size ranges
• Customization of particle distribution
• Packaging options
• Pricing levels based on order quantities
• Compliance with international standards

Pure Aluminum Powder Handling and Storage

Pure Aluminum Powder Handling

Aanbeveling	Reden
Use proper ventilation	Avoid concentrated dust environment
Employ grounding systems	Prevent static discharge during handling
Limit moisture exposure	Prevents oxidation of particles
Volg veilige protocollen	Verminder gezondheids- en brandgevaren
Ontstekingsbronnen vermijden	Flammable powder risk
Gebruik vonkvrij gereedschap	Voorkom de mogelijkheid van ontsteking

Aanbevelingen voor opslag

• Store in dry, inert sealed containers
• Bewaar temperaturen onder 27°C
• Limit exposure to oxidizers like nitric acid

Proper precautions during handling and storage help preserve purity and prevent oxidation or ignition risks.

Pure Aluminum Powder Inspection and Testing

Pure Aluminum Powder Testing

Test	Details
Chemische analyse	XRF or ICP testing verifies composition
Deeltjesgrootteverdeling	Laserdiffractieanalyse
Schijnbare dichtheid	Hall-flowmetertest volgens ASTM B212-standaard
Poedermorfologie	SEM-beeldvorming van deeltjesvorm
Analyse van de stroomsnelheid	Zwaartekrachtstroomsnelheid door gespecificeerde trechter
Vochtmeting	Verlies bij droogtest

Testing ensures the powder meets the required purity levels, particle characteristics, density specifications, morphology and flowability per applicable standards.

Pure Aluminum Powder Pros and Cons

Advantages of Pure Aluminum Powder

• Low density provides lightweight properties
• Excellent electrical and thermal conductivity
• Goede corrosiebestendigheid
• High ductility and excellent formability
• Recyclebaar en milieuvriendelijk
• Cost-effective compared to other conductive powders

Limitations of Pure Aluminum Powder

• Low strength limits load bearing structural applications
• Moderate high temperature mechanical strength
• Requires protective coatings in corrosive environments
• Sensitive to contamination from moisture and other powders
• Pyrophoric nature requires careful handling
• Gradually oxidizes over time if uncoated

Comparison With Al-Mg Alloy Powder

Pure Al vs Al-Mg Alloy Powder

Parameter	Zuiver Al	Al-Mg
Dikte	2,7 g/cc	2,7 g/cc
Kracht	90-100 MPa	150-220 MPa
Geleidbaarheid	Uitstekend	Goed
Corrosieweerstand	Goed	Uitstekend
Kosten	Laag	Hoog
Toepassingen	Thermite welding, pyrotechnics	Structural components

• Pure Al offers better conductivity and lower cost
• Al-Mg alloy provides higher strength
• Pure Al suited for electrical applications and pyrotechnics
• Al-Mg preferred for structural lightweight components

Pure Aluminum Powder FAQs

Q: What are the main applications of pure aluminum powder?

A: Main applications include thermite welding, conductive coatings, pyrotechnic compositions, diamond tools, metal injection molding of non-structural parts, and low-melting casting alloys.

Q: What precautions should be taken when working with pure aluminum powder?

A: Recommended precautions include proper ventilation, avoiding ignition sources, explosion-proof equipment, grounding systems, non-sparking tools, protective gear, safe protocols, and inert storage sealed away from contaminants.

Q: How does pure aluminum powder differ from aluminum alloy powders?

A: Pure aluminum has 99% or higher Al content while alloy powders contain other elements like magnesium, silicon, zinc. Pure Al offers high conductivity but lower strength than alloys.

Q: What affects the properties of pure aluminum powder components?

A: Key factors are apparent density, particle size distribution, compaction pressure, sintering parameters, impurities, and final part porosity.