Understanding Rebound Resilience Elasticity Tester Process

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Understanding Rebound Resilience Elasticity Tester Process



In industries reliant on rubber, polymers, and cellular materials, accurately measuring elasticity and impact resilience is critical for quality control. The Rebound Resilience Elasticity Tester provides standardized, repeatable data to evaluate material performance under dynamic stress.

Understanding Rebound Resilience Elasticity Tester Process

1. What Is a Rebound Resilience Elasticity Tester?

The Rebound Resilience Elasticity Tester is a precision instrument designed to measure the energy retention and elasticity of flexible materials such as rubber, EVA, PU, and PVC. By quantifying the ratio of rebound energy to impact energy (expressed as a percentage), it helps manufacturers:

  • Compare material batches for consistency.
  • Assess aging effects on elasticity.
  • Ensure compliance with international testing protocols.

2. Key Standards & Compliance

The GT-KB18 Rubber Rebound Resilience Elasticity Tester adheres to globally recognized standards, making it a versatile tool for multinational industries:
Standard Scope
  • DIN 53512 German standard for determining rebound resilience of rubber vulcanizates.
  • DIN 53573 Specifies testing of cellular polymeric materials (e.g., foam elasticity).
  • ISO 4662 International method for rubber resilience using the Lupke pendulum.
  • GB/T 1681 Chinese national standard for rubber resilience testing.

3. Working Principle of the GT-KB18 Resilience Elasticity Tester

The GT-KB18 resilience elasticity tester operates on the pendulum impact method:
  • A weighted pendulum strikes a fixed specimen.
  • The rebound height of the pendulum is measured to calculate resilience percentage (ratio of rebound energy to impact energy).
  • Higher resilience values indicate superior elasticity and energy retention.

4. Step-by-Step Testing Process

Stage 1: Machine Preparation

  • Leveling: Use the built-in bubble level to ensure horizontal alignment (per DIN 53573).
  • Impact Head Selection: Choose steel or aluminum heads based on material hardness.

Stage 2: Specimen Mounting

  • Cut the material to ISO 4662-specified dimensions.
  • Secure the specimen on the test plate using the clamping lever.

Stage 3: Calibration

  • Fix the pendulum to the release lever.
  • Adjust the pendulum height until it lightly contacts the specimen.
  • Reset the analog pointer to 0%.

Stage 4: Conducting Tests

Perform 6 consecutive strikes:
  • Strikes 1–3: Pre-condition the specimen (discarded to eliminate surface anomalies).
  • Strikes 4–6: Record rebound percentages.

Calculate the median value of the final three readings (as per GB/T 1681).


5. Benefits


  • Global Compliance: Meets DIN, ISO, and GB/T standards for cross-border quality assurance


  • High Accuracy: ±1% deviation ensures reliable data for R&D and audits.


  • Quick Setup: Interchangeable heads and intuitive controls reduce downtime.

FAQs


Q: How does DIN 53512 differ from ISO 4662?
A: DIN 53512 focuses on rubber vulcanizates, while ISO 4662 includes broader elastomer applications. Both use similar pendulum methods.

Q: Is training required to operate this tester?
A: Basic training ensures proper calibration and alignment with DIN/ISO steps, but the design is user-friendly.

Q: Can the GT-KB18 test non-reticulated materials?
A: Yes, it’s designed for EVA, PU, PVC, and similar flexible cellular materials.



Hawit Color Sorters Ensuring Quality in Christmas Foods

Christmas is a time for delicious food and festive gatherings. Whether it's sweet candies, crispy nuts, or rice-based snacks, the quality of the food matters most. Hawit Color Sorters, with their precise sorting technology, have become essential for food manufacturers during this busy season.

Why Hawit Color Sorters Are Key for Christmas Food Production

With the increased demand for food during the holidays, ensuring the highest quality is crucial. Hawit Color Sorters use advanced optical recognition to quickly remove defective products, ensuring each item meets strict quality standards.

For example, nuts are often affected by discoloration or defects. Harvii Color Sorters efficiently eliminate these non-standard pieces, guaranteeing only the best quality for consumers.

Benefits of Hawit Color Sorters

  1. Precision Sorting: Identifies color, shape, and surface features to remove impurities and defects.
  2. Enhanced Efficiency: Increases sorting speed and accuracy compared to manual labor, meeting high-volume needs.
  3. Versatility: Ideal for rice-based products, nuts, snacks, and more.
  4. Cost Savings: Reduces manual labor, lowering production costs and boosting automation.

This Christmas, Choose Hawit Color Sorters

As Christmas approaches, ensure your food production is efficient and meets quality standards. Hawit Color Sorters are the ideal solution for businesses looking to improve efficiency while maintaining top-notch quality.

Let  Hawit Color Sorters help you deliver the best products this holiday season. 🎄

 

 

High-Efficiency Applications and Key Roles of Color Sorters in Plastic Recycling

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With the rapid development of the plastic recycling industry, color sorters, with their precise and efficient sorting capabilities, have become essential equipment for enhancing recycling efficiency and product quality. They are widely used in color classification, material separation, and impurity removal, playing a key role in the recycling process.

Main Sorting Directions of Color Sorters in Plastic Recycling

  1. Color Sorting

    Sort mixed plastics by color (e.g., transparent, white, blue, etc.), remove contaminated particles, and improve the uniformity and market value of recycled plastics.

  2. Material Sorting

    Using near-infrared (NIR) technology, accurately separate different types of plastics such as PET, PP, PE, etc., to meet the requirements for further recycling processes.

  3. Impurity Removal

    Efficiently remove non-plastic impurities such as metals, glass, paper, etc., ensuring the purity of the recycled material.

  4. Transparency Sorting

    For transparent plastics, detect and remove particles with poor transparency or surface contamination, improving the cleanliness of the final product.

  5. Pollution Detection

    Identify and remove plastic particles that are oxidized, discolored, or burnt (e.g., yellowed or blackened particles), ensuring stable quality for recycled materials.

Why Choose Our Color Sorters?

  1. Advanced Technology

    Optical and near-infrared sensors for precise sorting.

  2. User-Friendly Operation

    One-touch operation for automatic sorting.

  3. Wide Application

    Meets the diverse needs of plastic recycling across different sectors.

  4. Comprehensive Service

    Technical support and equipment maintenance to ensure stable operation.

Color sorters are a core tool in the plastic recycling industry, aiding resource reuse and promoting sustainable development. If you are looking for high-efficiency plastic color sorters or material sorting machines, feel free to contact us and join us in creating a greener future!

 

 

How HBS protect its products during transportation

During transportation, product is easy to be damaged. let’s see how HBS protects its products through special cardboard box designs.

Firstly, HBS selects high-quality and sturdy cardboard for its product boxes, making them more durable and robust.Secondly, to ensure safe transportation, the boxes undergo rigorous testing and design to have higher resistance to pressure and impact, ensuring that the products remain intact even after drop tests.

Condenser

The condenser box is designed to protect the product from compression in two ways. The coil has a triangular top, and the sides are designed with cardboard supports to prevent deformation, providing cushioning space to protect the product from damage during collisions.

Evaporator

The evaporator box uses folded inner flaps to support and protect the coil from deformation and damage in case of collisions.

 

 

 

How much does it cost to replace a condenser in car?

The cost of replacing a condenser in a car can vary depending on several factors, including the make and model of the vehicle, the location of the repair shop, and whether you choose to use an original equipment manufacturer (OEM) condenser or an aftermarket one. On average, the cost of a condenser replacement ranges from $400 to $900.

 

HBS Condenser

If you take your car to a dealership or an authorized service center, the cost may be higher due to their higher labor rates and the use of OEM parts. However, using OEM parts can ensure compatibility and reliability.

 

On the other hand, if you opt for an independent auto repair shop, you may find lower prices as they often offer competitive rates and may use aftermarket condensers, which are typically less expensive than OEM parts. Aftermarket condensers can still provide adequate performance but may have slightly different specifications compared to the original.

 

It's important to note that the cost of the condenser itself is only part of the total replacement cost. Additional costs may include refrigerant recharge, evacuation and recharge of the A/C system, replacement of other components (if damaged), and labor charges.

 

To get an accurate estimate, it is recommended to contact local repair shops or dealerships and provide them with details about your vehicle. They will be able to provide you with a more precise cost estimate based on your specific circumstances.

 

To ensure the normal operation of the automotive condenser, regular inspections of its appearance and working condition are necessary. Promptly clean the condenser and check the coolant level and quality. It is important to avoid collisions to prevent damage to the condenser.

How to Clean Your Car's Condenser

The condenser is a critical component of your car's air conditioning system, responsible for facilitating the heat exchange between the outside air and the substances inside the pipes. Typically installed near the radiator at the front of the vehicle, it relies on the airflow generated while driving to enhance its cooling efficiency. To ensure optimal performance, regular cleaning of the condenser is essential. In this article, we will discuss a few practical cleaning methods.

 

Dirty Condenser

Method 1: High-Pressure Water Gun Cleaning
During your car wash routine, you can use a high-pressure water gun to thoroughly clean the condenser. This method effectively eliminates various debris, such as insects and leaves, that may accumulate on the cooling fins, ensuring that the condenser's heat dissipation capabilities remain unaffected.

 

Method 2: Hose Flushing
Another simple yet effective method is to flush the condenser with a regular water hose. By spraying water directly onto the surface, you can easily remove dust and dirt, ensuring smooth heat dissipation. Regularly employing this method can significantly improve the cooling efficiency of your air conditioning system.

 

After Clean the Condenser

Important Considerations for Cleaning:

1. Ensure safety during the cleaning process and avoid directly spraying water onto the engine to prevent any damage.

 

2. Before cleaning the condenser, remember to turn off the air conditioning system to prevent water from entering the AC pipes, which could disrupt its normal operation.

 

3. Take care to protect the delicate metal fins on the condenser surface to avoid any damage while cleaning.

 

In conclusion, regular cleaning of your car's condenser is crucial for maintaining the proper functioning of your air conditioning system. Both of the aforementioned methods are practical and effective, and you can choose the one that suits your individual circumstances and resources.

By adopting these cleaning measures, you can help prolong the condenser's lifespan and ensure optimal cooling performance for your car's air conditioning system. Don't overlook the importance of regular maintenance to enjoy comfortable and efficient cooling during your drives.

How to correctly install the quick fitting in condensers

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Recently, customers provided feedback on two issues regarding the installation of quick fittings. They wanted to know how to install quick fittings correctly and how to determine if the fitting has been successfully installed. They requested assistance from HBS to resolve the issue. OK,Let's now delve into how quick fittings are installed in condensers.

Firstly, let's address the proper installation of quick fittings. Customers reported that they were unable to install the fittings successfully even when pressing them directly to the bottom. Here's a handy tip: when pressing the fitting to the bottom, apply rotational force and listen for a clicking sound. This indicates a successful installation.

install condenser fitting susessfully

Secondly, how to determine if the quick fitting has been installed correctly. Let's compare images of correct and incorrect installations. If the spring inside the fitting pops out, it means the installation was successful.

correctly install the fitting

 

In summary, when using quick fittings in condensers, it is important to press the fitting to the bottom while applying rotational force. When you hear a clicking sound and see the spring inside the fitting pop out, the installation is considered successful.

How to replace an evaporator

Bad cooling performance and refrigerant leaks are common issues that can hinder the efficient operation of automotive air conditioning systems. In this video, we use Nissan sylphy evaporator as an example to demonstrate how to replace the AC evaporator, ensuring a cooler and more comfortable temperature inside your vehicle. Learn the step-by-step process to enhance the performance of your air conditioning system and beat the heat.

 

 

First, disassemble the components below the dashboard and remove the evaporator assembly before starting to dismantle the old evaporator. The entire process requires careful handling to avoid damaging other parts, as there are many delicate components and circuits surrounding the evaporator. Each screw and connector must be removed one by one to prevent damage to other components. Once the assembly is disassembled, we can observe that the evaporator has aged due to long-term use, resulting in dirt accumulation and refrigerant leaks, which can cause unpleasant odors and inadequate cooling in the air conditioning system.

Next, we proceed with the replacement of the new evaporator. Firstly, it is important to ensure that the connections and dimensions of the new and old evaporators are compatible。Then we need to check the performing of airtightness. The water leak test is a commonly used method in automotive air conditioning repair to detect potential evaporator leaks. Installing the new evaporator requires proper alignment, secure fixing, and connecting the pipelines to ensure a correct installation. When installing screws, caution should be exercised to avoid overtightening or loosening. Finally, it is necessary to check all connections and fixings for proper placement before reassembling the evaporator back into its original position. After replacing the evaporator, the outlet temperature measures 6.6 degrees Celsius (43.88 degrees Fahrenheit), compared to 13.2 degrees Celsius (55.76 degrees Fahrenheit) prior to replacement.

How to replace the car condenser

The steps to replace a condenser are as follows:

Preparation: First, ensure that the power is turned off and wear protective gloves and goggles to avoid the risk of electric shock. Prepare the necessary tools and materials, including wrenches, screwdrivers, pliers, sealant, a new condenser, and coolant.

 

Remove the old condenser: Turn off the power and cooling system, drain the coolant, and then remove the connecting pipes and mounting fixtures. When disassembling, pay attention to marking the connection positions of each pipeline for future installation.

 

Install the new condenser: Position the new condenser in place and secure it using screws or brackets. When connecting the pipes, ensure that the joints are tight and gap-free, and use sealant to further enhance the sealing. When injecting refrigerant, follow the system requirements and pay attention to the fill amount and speed to avoid excessive or insufficient filling.

HBS Condenser 

Test and adjust: Connect the power and start the equipment, observe the operation and cooling effect of the condenser. According to the equipment manual, make reasonable adjustments to the refrigeration system parameters to ensure the proper operation of the condenser.

 

Leakage check: Perform a thorough leak check before starting the equipment to ensure that all connections are leak-free.

 

Record and maintenance: Keep detailed records of the condenser replacement time and relevant data for future maintenance and inspection work. Regular inspections and maintenance should be conducted after replacement to ensure stable equipment operation.

 

Common causes of condenser failure include dirt accumulation, material corrosion, coolant leakage, and mechanical damage. These factors can reduce the heat dissipation efficiency of the condenser and affect the overall performance of the refrigeration system. Therefore, regular maintenance and timely replacement of faulty condensers are crucial for ensuring efficient equipment operation.

How to Replace the Condenser in a 2006 Volkswagen Sagitar

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The condenser is a crucial component of the car's air conditioning system.However, when the condenser becomes damaged, the cooling efficiency of the air conditioner may decrease, or it may fail to function properly. In such cases, replacing the condenser becomes necessary. Let's now take a closer look at how to replace the condenser in a 2006 Volkswagen Sagitar, so you can get a better understanding of the process.

 

Step 1: Preparing for the Replacement
Before starting the replacement process, it is essential to ensure your personal safety. Make sure to switch off the power supply, wear protective gloves, and safety goggles to minimize any potential electrical hazards. Gather the necessary tools and materials, including a wrench, screwdriver, pliers, sealant adhesive, a new condenser, and refrigerant.

 

Step 2: Removing the Old Condenser
Begin the process by shutting off the power supply and refrigeration system. Drain the cooling liquid, then carefully dismantle the connection pipes and fasteners. It's important to mark the position of each pipe connection to facilitate the installation process.

 

Step 3: Installing the New Condenser

 

Place the new condenser in its designated position and secure it using screws or brackets. When connecting the pipes, ensure a tight and gap-free fit between each joint. Use sealant adhesive to reinforce the sealing. During refrigerant injection, follow the system requirements, paying close attention to the recommended fill quantity and speed, preventing overfilling or underfilling.

 

Condenser For Volkswagen

 

 

Step 4: Testing and Adjusting
Power on the system and start the vehicle. Observe the functioning of the newly installed condenser and evaluate its cooling performance. Refer to your device manual to make necessary adjustments to the refrigeration system parameters, ensuring optimum operation of the condenser.

 

Step 5: Leak Check
Before finalizing the installation, perform a thorough leak check. Ensure all connections are free from any signs of leakage or damage.

 

Step 6: Record and Maintenance
Maintain a detailed record of the condenser replacement, including the date and relevant data, to facilitate future maintenance and inspection. Additionally, it is crucial to schedule regular check-ups to ensure the stability and longevity of your vehicle's AC system.

 

Condenser failure in automotive AC systems can arise from various factors, including debris accumulation, material corrosion, refrigerant leaks, and mechanical damage. These issues can significantly impact the cooling efficiency of the condenser and the overall performance of your AC system. Therefore, regular maintenance and timely replacement of faulty condensers are critical to ensuring the efficient operation of your vehicle.