Powder post-atomization treatment

Přehled o Powder Post-Atomization Treatment

Post-atomization treatment of powders is a critical step to modify and enhance the properties of metal powders after they have been atomized. This can involve several processes such as heat treatment, mechanical milling, sieving, and surface treatment. The aim is to improve the powder’s flowability, reduce particle size distribution, increase purity, and enhance other specific properties needed for various applications.

Key Processes in Post-Atomization Treatment

• Tepelné zpracování: Used to relieve internal stresses, modify phase structures, and improve mechanical properties.
• Mechanické frézování: Reduces particle size and refines the microstructure.
• Sítování: Ensures uniform particle size distribution.
• Povrchová úprava: Enhances the surface properties of the powder particles.

Specifické modely kovového prášku

1. Inconel 625 prášek

Složení: Nickel-Chromium-Molybdenum alloy with additions of niobium.
Vlastnosti: Excellent corrosion resistance, high tensile, fatigue, and creep-rupture strength.
Charakteristika: Suitable for extreme environments, high resistance to oxidation and carburization.
Aplikace: Aerospace, marine, chemical processing, and nuclear reactors.

2. Hliník 6061 prášek

Složení: Magnesium and silicon as major alloying elements.
Vlastnosti: Good mechanical properties, weldability, and corrosion resistance.
Charakteristika: Lightweight, strong, and versatile.
Aplikace: Automotive, aerospace, and structural components.

3. Prášek titanu Ti-6Al-4V

Složení: Titanium alloyed with aluminum and vanadium.
Vlastnosti: High strength, low weight, and excellent corrosion resistance.
Charakteristika: Biocompatible, making it suitable for medical implants.
Aplikace: Aerospace, medical devices, and automotive.

4. Prášek z nerezové oceli 316L

Složení: Iron, chromium, nickel, and molybdenum.
Vlastnosti: Excellent corrosion resistance, high tensile strength, and durability.
Charakteristika: Suitable for harsh environments and applications requiring high hygiene standards.
Aplikace: Medical, food processing, and marine.

5. Copper Cu-ETP Powder

Složení: Electrolytic tough pitch copper.
Vlastnosti: High electrical and thermal conductivity, good corrosion resistance.
Charakteristika: Easy to fabricate and join.
Aplikace: Electrical components, heat exchangers, and plumbing.

6. Prášek ze slitiny kobaltu a chromu

Složení: Cobalt, chromium, and molybdenum.
Vlastnosti: High wear and corrosion resistance, good mechanical strength.
Charakteristika: Suitable for high-temperature applications.
Aplikace: Orthopedic implants, dental devices, and aerospace.

7. Magnesium AZ91 Powder

Složení: Magnesium alloy with aluminum and zinc.
Vlastnosti: Low density, high strength-to-weight ratio.
Charakteristika: Lightweight and machinable.
Aplikace: Automotive, aerospace, and electronics.

8. Nickel 718 Powder

Složení: Nickel-chromium alloy with molybdenum, niobium, and titanium.
Vlastnosti: High strength, good corrosion and oxidation resistance.
Charakteristika: Suitable for high-temperature applications.
Aplikace: Aerospace, power generation, and oil and gas.

9. Karbid wolframu v prášku

Složení: Tungsten and carbon.
Vlastnosti: Extremely hard, high wear resistance.
Charakteristika: Suitable for cutting tools and wear-resistant applications.
Aplikace: Mining, machining, and industrial tooling.

10. Zirconium Zr702 Powder

Složení: Commercially pure zirconium.
Vlastnosti: Excellent corrosion resistance, high melting point.
Charakteristika: Suitable for nuclear applications.
Aplikace: Nuclear reactors, chemical processing, and medical devices.

Aplikace z Powder Post-Atomization Treatment

Post-atomization treatment enhances the properties of metal powders, making them suitable for a wide range of applications. Here, we outline some key uses across different industries:

Průmysl	Aplikace
Aerospace	Součásti proudových motorů, konstrukční díly
Automobilový průmysl	Díly motoru, lehké konstrukce
Lékařský	Implantáty, chirurgické nástroje
Elektronika	Conductive inks, thermal management components
Chemické	Catalysts, filtration systems
Námořní	Propellers, underwater fittings
Jaderné	Reactor components, fuel cladding
Ropa a plyn	Drill bits, corrosion-resistant fittings
Nástroje	Řezné nástroje, díly odolné proti opotřebení

Specifikace, velikosti, třídy a standardy

The specifications, sizes, grades, and standards for metal powders vary based on their composition and intended application. Here is a detailed overview:

Model kovového prášku	Rozsah velikosti částic (µm)	Třída	Normy
Inconel 625	15-53	Premium	AMS 5666, UNS N06625
Hliník 6061	10-75	AA6061	ASTM B209, SAE AMS 4025
Ti-6Al-4V	20-60	5. třída	ASTM F136, ISO 5832-3
Nerezová ocel 316L	15-45	316L	ASTM A240, AMS 5653
Copper Cu-ETP	20-100	C11000	ASTM B152, SAE J463
Kobalt-chrom	10-50	ASTM F75	ASTM F799, ISO 5832-4
Magnesium AZ91	30-100	AZ91D	ASTM B93/B93M
Nikl 718	15-63	UNS N07718	AMS 5662, ASTM B637
Karbid wolframu	5-30	WC-Co	ISO 9001, ASTM B777
Zirconium Zr702	20-50	Zr702	ASTM B551, ISO 9001

Podrobnosti o dodavatelích a cenách

Finding the right supplier is crucial for obtaining high-quality metal powders. Below is a list of notable suppliers and a general pricing overview for different metal powders:

Dodavatel	Modely s kovovým práškem	Cenové rozpětí (za kg)
Höganäs	Inconel 625, Stainless Steel 316L	$200 – $350
Tesařská technologie	Ti-6Al-4V, Nickel 718	$250 – $400
Sandvik	Cobalt-Chromium, Tungsten Carbide	$300 – $500
Přísady GKN	Aluminum 6061, Magnesium AZ91	$150 – $300
Technologie povrchů Praxair	Copper Cu-ETP, Zirconium Zr702	$100 – $250

Pros and Cons: Advantages and Limitations

Understanding the advantages and limitations of each metal powder is crucial for selecting the right material for your application. Here, we compare some key parameters:

Model kovového prášku	Výhody	Omezení
Inconel 625	Vynikající odolnost proti korozi, vysoká pevnost	Vysoké náklady
Hliník 6061	Lightweight, versatile, good machinability	Nižší pevnost ve srovnání s jinými slitinami
Ti-6Al-4V	Vysoký poměr pevnosti a hmotnosti, biokompatibilní	Drahé, obtížně obrobitelné
Nerezová ocel 316L	Excellent corrosion resistance, durability	Heavier than some other metals
Copper Cu-ETP	Vysoká vodivost, snadná práce	Náchylné k oxidaci
Kobalt-chrom	High wear resistance, good mechanical properties	Drahé, obtížně zpracovatelné
Magnesium AZ91	Very lightweight, good machinability	Flammable in fine powder form
Nikl 718	Vysoká pevnost při vysokých teplotách	Vysoké náklady
Karbid wolframu	Extrémně tvrdé, vysoce odolné proti opotřebení	Křehký, obtížně obrobitelný
Zirconium Zr702	Vynikající odolnost proti korozi, vysoký bod tání	Drahé, omezená dostupnost

FAQ

What is post-atomization treatment of metal powders?

Post-atomization treatment refers to the additional processing steps taken after the initial atomization of metal powders. These steps can include heat treatment, mechanical milling, sieving, and surface treatment to enhance the powder’s properties.

Why is post-atomization treatment necessary?

It is necessary to improve the flowability, particle size distribution, purity, and other specific properties of metal powders to meet the requirements of various applications.

Which industries benefit from post-atomization treated powders?

Industries such as aerospace, automotive, medical, electronics, chemical, marine, nuclear, oil and gas, and tooling benefit from these enhanced powders.

What are some common metal powders used in post-atomization treatment?

Common metal powders include Inconel 625, Aluminum 6061, Titanium Ti-6Al-4V, Stainless Steel 316L, Copper Cu-ETP, Cobalt-Chromium, Magnesium AZ91, Nickel 718, Tungsten Carbide, and Zirconium Zr702.

How do the properties of metal powders change after post-atomization treatment?

Properties such as strength, corrosion resistance, particle size distribution, and surface characteristics can be significantly improved after post-atomization treatment.

What should I consider when selecting a metal powder for my application?

Consider the powder’s composition, properties, particle size distribution, and the specific requirements of your application. Additionally, take into account the cost, availability, and supplier reputation.

Are there any limitations to using post-atomization treated powders?

Yes, limitations can include higher costs, potential difficulties in processing certain materials, and the need for specialized equipment and expertise.

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