What is Sintered metal parts:
Sintered metal parts are made using a powder metallurgy technique called sintering. In this method, metal powder is compressed into a precise shape, and then heat is used to attach the metal particles inside the created item, enabling it to maintain its new shape. Sintering can be used to produce a wide range of metal part types and is compatible with many different metals and alloys.
JIEHUANG Sintered Metals are experts in cutting-edge sintering procedures that turn powdered metals into durable, dependable metal products. Learn more about the metal sintering procedure and how it can help your application by reading on.
What is the sintering process:
Sintering process is to prepare iron ore powder, flux, fuel and substitutes according to the requirements of blast furnace smelting, according to a certain proportion of batching, mixing, adding water lubrication. Regranulation, distribution ignition, with the help of the fan, so that under the action of a certain high temperature, the surface of some iron ore powder softening and melting, produce a certain liquid phase, and other final melting ore particles, after cooling, the liquid phase will stick the mineral powder particles into blocks this process is sintering process.
The basic sintering process
powder pressing → charging (preparation before loading and sintering) → sintering (preheating, heat preservation and cooling) → coming out → sintered body
What are advantages Sintered metal parts
●Through sintering, high quality sinter with stable chemical composition, uniform particle size, good reducibility and high metallurgical performance can be provided for blast furnace, which creates good conditions for high quality, high yield, low consumption and long life.
●Can remove harmful impurities such as sulfur, zinc, etc.;
●Industrial waste, such as blast furnace dust, rolled steel, sulfuric acid slag, steel slag, etc.;
●Non-ferrous metals and rare earth metals can be recovered.
Sintering temperature range of Sintered metal
|
Sintering temperature |
Examples of sintered products |
|
1050 |
High carbon (above 2.5% graphite), low density (<6.0gcm³) |
|
1080 |
High oil bearing, valve guide, graphite content of 1.5-2.5% anti-friction parts |
|
1120 |
Iron base structural parts (Fe-C, Fe-Cu-C), when graphite content <1%, single sintering process |
|
＞1150 |
Medium and high strength structural parts (graphite content <1%, add appropriate alloying elements) or repressed high temperature sintering |
What are Common sintered metal materials:
Hard alloy: composed of tungsten, cobalt, carbon and other metals, with high hardness, strong wear resistance, corrosion resistance and other properties, widely used in machining, mining and other fields.
Tungsten alloy: Mainly composed of tungsten, iron, nickel and other metals, with high density, high strength, high melting point and other characteristics, often used in the manufacture of aerospace and national defense high-temperature parts.
Diamond composite material: Diamond as the main component material, through the sintering process and other metal materials composite, has excellent hardness, thermal conductivity, is widely used in abrasive, cutting, electronics, energy and other fields.
Nano ceramic composite material: composed of metal materials, oxides, etc., with high strength, high toughness, high wear resistance and high temperature stability, suitable for high-speed cutting, high temperature sintering, electronic devices and other fields.
In addition, sintered metal materials also include a variety of special alloys, ceramic composite materials and nano metal materials.