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Sintered Powder
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What is Sintered Powder?
Sintered Powder is a core process in powder metallurgy, where metal or ceramic powders are heated at temperatures below their melting point, causing the powder particles to diffuse and bond together, forming a dense, strong solid material with a controllable porous structure.
Key Features of Sintered Powder
High-Precision Filtration Capability
● Utilizes fine powders such as 316L stainless steel, which are sintered at high temperatures to form a continuous and uniform microporous network.
● Filtration accuracy can reach micron to sub-micron levels, making it suitable for high-cleanliness applications such as ultrapure water filtration and electronic chip manufacturing.
Excellent structural strength and durability
● After sintering, the material has a dense grain structure and strong overall integrity, possessing high compressive strength and wear resistance.
● It can be used stably for extended periods in high-temperature (above 300℃), high-pressure, and highly corrosive environments.
Easy to clean and reusable
● The open, porous structure, similar to a "metal sponge," supports efficient cleaning through backwashing.
● Most of the filtration performance can be restored, resulting in a long service life and low maintenance costs.
High Material Utilization and Environmental Friendliness
● Powder metallurgy processes achieve material utilization rates of over 95%, reducing waste.
● Suitable for manufacturing complex-shaped parts, eliminating the need for extensive machining, thus saving energy and protecting the environment.
Sintered Powder Process Flow
● Powder Mixing – Uniformly mix the metal powder with additives.
● Compressing and Forming – Form a "green body" through methods such as isostatic pressing or die pressing.
● High-Temperature Sintering – Heat in a protective atmosphere or vacuum furnace to achieve particle bonding and densification.
● Post-Processing – Further processing such as finishing and heat treatment can be performed to meet the final performance requirements.
Main Application Areas
Industrial Filtration
Liquid and gas filtration in industries such as petroleum, chemical engineering, and environmental protection.
Food and Pharmaceuticals
High-precision filtration and separation meeting hygiene standards.
Functional Materials
Porous electrodes, catalyst carriers, sound-absorbing materials, and transpiration cooling materials.
Precision Parts
Suitable for the manufacturing of complex structural components in automotive, aerospace, and medical device industries.
Why choose powder sintered materials?
● Controllable pore structure, resulting in high and stable filtration accuracy.
● High temperature resistance, corrosion resistance, and high strength, suitable for harsh working conditions.
● Washable and reusable, making them economical and practical.
● Applicable to a wide range of materials, including stainless steel, titanium alloys, ceramics, etc.
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