GranuDrum HT: High-Temperature Powder Flow Analyzer

GranuDrum High Temperature (HT) analyzes powder flowability and cohesion at temperatures up to 250 °C, making it an important instrument for additive manufacturing and industries where material performance at high temperatures directly affects product quality.

This novel device includes an integrated heating system that pre-heats powders directly within the measurement cell, avoiding the need for additional equipment and ensuring exact temperature control. The GranuDrum HT, which features a revolving drum and a high-resolution camera, captures real-time changes in powder behavior, enabling precise Cohesive Index (CI) calculations over various temperatures.

The GranuDrum HT enables users to optimize material performance, improve product quality, and make educated decisions in high-temperature applications by giving essential insights into how temperature impacts powder properties.

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Integrated Heating Solution and Precise Temperature Control

GranuDrum HT can monitor temperatures ranging from ambient temperature to 250 °C, making it ideal for high-temperature applications. Its integrated heating system pre-heats powders inside the measuring cell, eliminating the need for external equipment.

The internal heating resistance ensures that the cell reaches and maintains the correct temperature, which is constantly monitored and modified by an integrated sensor and software. This gives operators precise temperature control for consistent and reproducible results.

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Flowability Measurement with Cohesion Analysis

GranuDrum HT features a rotating drum half-filled with powder and vertical glass side walls. This enables a high-resolution camera to capture fluctuations in the powder interface. These fluctuations are then examined to determine the Cohesive Index (CI) as a function of drum speed.

Observing CI variations at different temperatures can give users significant insights into powder rheological behavior, helping them comprehend material cohesion under high thermal settings.

Optimized Thermal Conductivity for Accuracy

GranuDrum HT uses a high-conductivity, heat-resistant glass measurement cell to reduce temperature gradients and improve data accuracy. This design guarantees that powder samples are heated evenly, resulting in accurate readings that are critical for applications where tiny differences in powder behavior can substantially impact production quality.

Real-Time Temperature Monitoring for Operator Confidence

The GranuDrum HT's software interface supports real-time temperature tracking, allowing users to continuously monitor and change the cell temperature during each measurement. This feature provides comprehensive process transparency, providing operators confidence in the data’s accuracy and reliability.

Advanced Powder Flowability Insights in Additive Manufacturing

The GranuDrum HT has proven its effectiveness in tests on various powders commonly used in additive manufacturing (AM), showing how temperature variations uniquely impact each material. This investigation emphasized the significance of evaluating powders under realistic thermal conditions, as temperature-induced changes in cohesion can significantly affect powder spreadability,influencing the quality of the powder layer in processes such as powder bed fusion.

Relying merely on room temperature measurements could lead to incorrect conclusions and hinderAM quality.

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Conclusions

GranuDrum HT’s precise temperature control vividly demonstrates the impact of temperature on powder cohesion, revealing behaviors that would otherwise go unnoticed at room temperature. This understanding is critical for AM and other industries where manufacturing conditions differ significantly from ambient surroundings.

Granutools continues to push the frontiers of powder characterization, creating tools that assist industries in achieving unmatched accuracy and consistent results.

The New Rheometer for Powder - GranuDrumPlay

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