Moulding Sand Strength Tester High Precision Loading Mechanism And Comprehensive Data Analysis

The QR-ZSL Intelligent Hot and Wet Tensile Strength Tester is a state-of-the-art instrument specifically designed for evaluating the hot wet tensile strength and room-temperature wet tensile strength of molding sand. This highly precise tester plays a vital role in assessing the quality and performance of molding sand and related raw materials such as bentonite. By simulating real foundry conditions, the QR-ZSL ensures accurate testing of sand inclusions, binder effectiveness, and overall sand durability under both thermal and mechanical stresses.

With its intelligent control system, advanced temperature regulation, high-precision loading mechanism, and comprehensive data analysis functions, the QR-ZSL is an indispensable tool for foundries, casting workshops, metallurgical laboratories, quality control centers, and research institutions.

1. Core Functions and Testing Capabilities

The QR-ZSL focuses on two primary testing areas:

a. Hot Wet Tensile Strength Measurement

• Evaluates the tensile strength of molding sand at elevated temperatures under wet conditions.

• Provides insights into sand performance during the casting process when subjected to molten metal and high humidity.

• Essential for predicting mold failure risks, sand inclusions, and defects in final castings.

b. Room Temperature Wet Tensile Strength Measurement

• Measures tensile strength at standard laboratory conditions while the sand is still wet.

• Useful for quality checks on raw materials and early-stage sand mixture assessments.

• Helps determine binder effectiveness and overall wet strength of molding sand.

Additionally, the QR-ZSL can be used to identify the quality of raw materials such as bentonite, which is crucial for achieving consistent and reliable mold performance.

2. Technical Specifications

The QR-ZSL has been engineered with robust technical parameters that make it both versatile and highly accurate:

• Measuring Range: 0–25000 Pa

• Measurement Accuracy: ± 1.0%

• Loading Speed: Adjustable 3.0–10 mm/min

• Specimen Size: Ø 50 × 50 mm

• Temperature Control Range: Room temperature to 500 °C

• Temperature Accuracy: ± 1 °C

• Power Supply: AC 220 V ± 10%, 50 Hz

• Rated Power: 500 W

These parameters enable the QR-ZSL to reliably simulate real casting environments while maintaining high precision across a wide testing spectrum.

3. Key Features

1. Microcomputer Intelligent Control

   • Ensures full automation of testing procedures, minimizing human error.

   • Offers reliable and repeatable test results.

2. High-Precision Stepper Motor Loading System

   • Provides uniform, stable, and adjustable loading.

   • Eliminates inconsistencies found in manual or hydraulic systems.

3. Advanced Temperature Control System

   • Capable of regulating heat from room temperature up to 500 °C.

   • Guarantees accurate simulation of casting conditions.

4. Automatic Lifting System

   • Simplifies sample placement and adjustment.

   • Improves testing efficiency and safety.

5. LCD Screen with Chinese Menu

   • Clear display with user-friendly interface.

   • Split-screen functionality for monitoring multiple parameters simultaneously.

6. Password Protection Function

   • Safeguards system settings and prevents unauthorized adjustments.

7. Data Management Functions

   • Real-time curve display of force values.

   • Built-in storage, querying, and printing functions.

   • Ideal for both laboratory documentation and industrial quality reports.

4. Advantages of the QR-ZSL

• Comprehensive Testing in One Instrument

  • Measures both hot and room-temperature wet tensile strength in one device.

• Enhanced Accuracy and Repeatability

  • High-precision sensors and stepper motor ensure reliable results every time.

• Practical and User-Friendly Design

  • LCD touch display, clear menus, and split-screen features make operation simple.

• Data Storage and Printing Capabilities

  • Convenient for quality inspections, report generation, and academic research.

• Durability and Reliability

  • Designed for long-term, stable operation in both industrial and academic environments.

• Improves Casting Quality and Efficiency

  • Early detection of sand performance issues reduces casting defects, saving time and costs.

5. Applications Across Industries

The QR-ZSL Intelligent Hot and Wet Tensile Strength Tester is widely used in:

• Foundries and Casting Workshops

  • Ensuring mold sand performance during casting processes.

  • Preventing defects caused by poor tensile strength.

• Quality Control Laboratories

  • Routine testing of molding sand and binders such as bentonite.

  • Ensuring compliance with international casting standards.

• Scientific Research Institutions

  • Studying sand behavior under hot and wet conditions.

  • Developing new sand formulations and binders.

• Universities and Educational Facilities

  • Teaching materials science and foundry engineering principles.

  • Training students in practical tensile strength testing techniques.

6. Why Choose QR-ZSL?

Choosing the QR-ZSL means investing in accuracy, reliability, and efficiency. This machine integrates modern automation, advanced sensors, and flexible data management, making it superior to traditional testing devices.

Key reasons to select QR-ZSL:

• Multi-purpose tester for both hot and wet tensile strength.

• High-precision measurement with ±1.0% accuracy.

• Strong data management: real-time curves, storage, querying, and printing.

• Intelligent, automated operation reduces operator error.

• Widely applicable across industrial, research, and educational fields.

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• Bentonite Quality Testing Machine

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Conclusion

The QR-ZSL Intelligent Hot and Wet Tensile Strength Tester is a powerful, reliable, and versatile testing instrument designed for modern foundry applications. Its ability to measure hot wet tensile strength and room temperature wet tensile strength, combined with advanced automation, precision sensors, and robust temperature control, makes it an ideal choice for industries and laboratories focused on casting quality, sand research, and binder evaluation.

By providing real-time data, superior accuracy, and flexible reporting functions, the QR-ZSL helps organizations improve casting efficiency, reduce defects, and enhance overall product quality. Whether used in industrial production, scientific research, or academic training, the QR-ZSL delivers dependable performance and long-term value.