Onsite Nitrogen Gas Generators for Sintering

Metallurgical sintering is the process of fusing metal powders to create solid metallic objects with a near-net shape. The sintering process involves compacting and heating a mixture of metal powders at a high temperature.

One key factor in optimizing the sintering process is the control of the atmosphere in which the sintering process takes place. This can be achieved by using a nitrogen gas atmosphere during the process. An onsite nitrogen generator can be used to produce the required nitrogen gas from ambient air by separating nitrogen molecules from other gasses, primarily oxygen. Removing oxygen from the atmosphere is imperative to prevent metals from oxidizing.

Understanding the Sintering Process

There are many steps involved in sintering, but the key steps are:

  • Selecting the metal powder and mixture: It is crucial to choose the suitable metal powder for your needs. Once selected, mix it with the necessary additives.
  • Compaction: Here, pressure is applied to the powder using a die press to shape it according to the desired form. The type of powder used, as well as the duration will determine the amount of pressure applied.
  • Sintering: The compacted materials are then heated to the appropriate temperatures to sinter the material. This process involves heating the powder to just below its melting point to allow the metal particles to bond together. Once the process is complete, the sintered product is left to cool, after which surface finishing may be performed to achieve the desired size or dimensions.

The Role of Nitrogen Gas in Sintering

Nitrogen gas is the most important element used in the sintering process. It is an inert gas used to displace oxygen in the environment where the sintering process is carried out. The presence of oxygen in the atmosphere can cause the material to oxidize.

The easiest way to supply a stable and continuous nitrogen supply is to utilize an onsite nitrogen generator. A nitrogen generator utilizes different technologies, such as pressure swing adsorption (PSA) or membrane separation, to extract nitrogen from the air. Nitrogen generators provide a reliable source of nitrogen gas to ensure uninterrupted sintering operations.

Nitrogen Gas Generators for Sintering

The following are the benefits of nitrogen gas generators in the metallurgical sintering process.

Cost Efficiency

Nitrogen gas generators are a cost-effective way of producing nitrogen. It is a one-time investment. Once installed, they offer long-term reliability and durability and require minimal maintenance throughout their extended lifespan. A nitrogen generator will always supply the lowest cost source of nitrogen gas.

Customized Device

Nitrogen gas generators are used for various applications and can provide nitrogen flow rates and nitrogen purity levels best suited to specific sintering requirements.

Prevents Oxidation of Metals

The use of nitrogen gas generating systems in the sintering process displaces oxygen from the air. The risk of metal oxidation or rusting before and after the sintering process is eliminated. It allows manufacturers to produce high-quality products.

Also Read: What Are the Environmental Benefits of Using Onsite Nitrogen Generators?

Contact Advanced Gas Technologies Today!

If you want to enhance your sintering processes, consider purchasing an onsite nitrogen gas generator from Advanced Gas Technologies. Our PSA and membrane nitrogen generators provide an uninterrupted supply of nitrogen gas to prevent oxidation and corrosion of metals. And the best part is that it is a one-time investment. With little maintenance, they can last years.

Contact us today to learn more about our nitrogen gas generators for sintering. We will offer you all the help you need to get started!