About Degasser Tablets
D-Gas Tablets
To guarantee maximum contact area with liquid metal, D-gas is made up of a granular substance that has been firmly bound and shaped into a weighted unit with a high surface area to volume ratio.
Molten copper and copper-based alloys can be degassed using D-gas. Through a steam reaction, dissolved hydrogen and cuprous oxide interact to generate water vapour in copper and copper base alloys. As the temperature drops, hydrogens solubility in copper and its alloy melts decreases until the gas reaches solid solubility. After deoxidation, the hydrogen that is released from the solution tends to mix with extremely low levels of cuprous oxide; hydrogen may still be an issue, therefore it is best to minimise it to very small amounts. The simplest and most efficient method is to create a stream of hydrogen-scavenging gas that bubbles through the melt and doesnt react with the alloy being treated. D-gas units are made of a mixture of chemicals that break down when they come into touch with molten metal, producing a continuous, constant stream of non-reactive gas. Since D-gas is very carefully dried and packed, the gas bubbles contain very little hydrogen and are able to flush out that gas and carry it to the surface where it is lost to atmosphere
APPLICATION:
DIRECTIONS FOR USE: D-Gas units are annular in shape and have a central hole that may be filled with a straightforward steel plunger that has been thoroughly cured and coated with refractory. a) Decomposed under the influence of a rough flux such as FLUXIT. c) Drop the D-Gas units to the melts bottom to degas. Hold this position until the bubbling effect completely goes away. By doing this, the developed gas bubbles and melt would have the longest possible contact time, resulting in effective hydrogen elimination. c) At least three minutes should pass throughout the degassing process. The temperature drops by 10 to 15 degrees Celsius as a result. Therefore, it is necessary to permit a proportionately higher degree of superheat.
Uniform and Effective DegassingDegasser Tablets offer a stable and consistent release during the aluminum melting process, enabling controlled removal of hydrogen and impurities. These features result in improved metal quality, reduced porosity, and enhanced mechanical properties. Thanks to their industrial-grade composition and high thermal stability, they are a preferred choice for foundries and aluminum manufacturers.
Safe, Eco-friendly, and Easy to UseDesigned for straightforward dosing and safe handling, Degasser Tablets are non-toxic, odorless, non-hazardous, and eco-friendly. Their robust packaging in moisture-proof containers protects them against moisture and extends usability up to 12 months. With a neutral pH and high mechanical strength, these tablets align with industrial safety regulations and sustainability goals.
FAQs of Degasser Tablets:
Q: How should Degasser Tablets be applied during the aluminum melting process?
A: Degasser Tablets are best introduced into the aluminum melt at the recommended temperature, ensuring they sink and react evenly. Use the appropriate size and quantity based on the alloy and melt volume, allowing controlled release of degassing agents to maximize hydrogen and impurity removal.
Q: What are the benefits of using Degasser Tablets made from Nitral C?
A: Nitral C provides high thermal stability and strength, ensuring sustained degassing action without disintegrating prematurely. This results in uniform contaminant removal, helps reduce casting defects such as porosity, and improves final product quality.
Q: When should I use Degasser Tablets during the aluminum refining process?
A: Degasser Tablets should be used after the complete melting of aluminum, before casting or alloying additions. This timing ensures optimal removal of dissolved hydrogen and non-metallic inclusions, protecting the metals integrity before solidification.
Q: Where should Degasser Tablets be stored to preserve their quality?
A: Store the tablets in a dry, cool place away from water or high humidity. Keeping them in moisture-proof cartons or drums is essential to maintain their shelf life and prevent any premature reaction or degradation.
Q: What makes Degasser Tablets suitable for all grades of aluminum and its alloys?
A: Their controlled-release formulation, neutral pH, and eco-friendly, non-toxic properties ensure chemical compatibility with various aluminum grades and alloying elements. This versatility makes the tablets ideal for different foundry and industrial applications.
Q: How do Degasser Tablets contribute to environmental safety?
A: Degasser Tablets are classified as non-hazardous and are free from poisonous components. Designed to be eco-friendly, they produce minimal emissions during use, aligning with environmental protection regulations for industrial materials.