Repair of Sanfeng Rockwell Hardness Tester

Repair of Sanfeng Rockwell Hardness Tester

1、 What is a Rockwell hardness tester?

Firstly, let's briefly understand the principle of Rockwell hardness testing: it calculates the hardness value by measuring the depth difference of the indenter pressed into the material surface under the initial test force (preload) and the total test force (main load). This testing method is fast, direct, and suitable for a wide range of materials from soft metals such as aluminum and copper to hard steels such as quenched steel.

2、 The core characteristics and advantages of Sanfeng Rockwell hardness tester

The Sanfeng brand has demonstrated several significant advantages in its Rockwell hardness tester, including:

1. Accuracy and repeatability：

• High precision sensorAdopting a precise displacement measurement system to ensure the accuracy of indentation depth measurement.

• Stable loading mechanismThe precise mechanical structure or closed-loop controlled electric loading system ensures smooth and accurate application of test force, ensuring the repeatability of test results.

• Complies with international standardsTheir products strictly adhere toISO 6508TheASTM E18Wait for international standards to ensure the recognition of test data.

2. Durable and Reliable：

• High quality materials and manufacturingThe body is made of high-quality cast iron or steel structure, with high rigidity, which can effectively absorb vibration and ensure long-term stability.

• Long-life designCore components such as pressure heads, test force springs/motors, etc. have been specially designed and processed to be wear-resistant, durable, and have a low failure rate.

3. Humanization and usability：

• Intuitive operationWhether it is traditional dial or digital display, the operation process is designed very clearly.

• Intelligentization of digital display modelsDigital display models are usually equipped with large LCD screens that can directly display hardness values, conversion values, statistical data, and test curves.

• Automation functionMany models have automatic loading, holding, and unloading functions, reducing human operation errors and improving testing efficiency.

4. Complete models and wide applications：

• Sanfeng offers traditional servicesManual type、electric typeTo meet the needs of different industries and budgets, we offer various models including fully automatic ones.

• Can be equipped with multiple pressure heads and testing forces, supportingRockwell hardness (HRC, HRB, HRA, etc.)、Surface Rockwell hardness (HR15N, HR30N, HR45N, etc.)andBrinell and VickersTesting with various hardness scales (some models require corresponding accessories).

3、 Introduction to Main Series and Models

Sanfeng's Rockwell hardness testers are mainly divided into the following series:

1. ATK series (digital electric type)

• featureThis is the mainstream electric Rockwell hardness tester series from Sanfeng. Driven by a motor, the test force is automatically applied, the operation is simple, and the results are reliable.

• advantageHigh precision and efficiency, very suitable for routine testing in laboratories, quality inspection departments, and production sites.

• Representative model：ATK-6000This is a very classic model with multiple functions, such as hardness value conversion, data output, etc.

2. ARK series (digital manual type)

• featureThe operator needs to manually rotate the handwheel to apply the test force. Compared to electric models, the cost is lower, but the core measurement system is still Sanfeng's high-precision standard.

• advantageHigh cost-effectiveness, suitable for users with limited budgets but still requiring high-precision measurements.

• Representative model：ARK-6000

3. Traditional dial style (such as HR-500 series)

• featureDirectly reading the hardness value through the dial, with a mechanical structure that is very sturdy and durable.

• advantageSimple structure, easy maintenance, low environmental requirements, still widely used in some old factories and specific environments.

4. Fully automatic and special models

• For high-throughput laboratories or specific industrial needs (such as batch testing of small parts), Sanfeng also provides fully automatic hardness testers that can automatically load, unload, position, and test materials, greatly improving efficiency.

4、 Typical application areas

Sanfeng Rockwell hardness tester is widely used in all industries that require material hardness testing:

• Metal heat treatment industryDetect the hardness of workpieces after quenching, tempering, carburizing and other processes.

• Aerospace and Automotive ManufacturingStrictly control the hardness quality of key components such as engine crankshafts, gears, and bearings.

• Steel and alloy manufacturing industryGrade and inspect the hardness of raw materials and finished products.

• Research institutes and quality inspection institutionsConduct material research, performance analysis, and third-party certification testing.

• Mechanical Processing and Mold IndustryTest the hardness and wear resistance of cutting tools and molds.

5、 Key points for purchasing

When choosing a Sanfeng Rockwell hardness tester, the following points can be considered:

1. Test requirementsWhat ruler (HRC/HRB) is mainly tested? Is surface Rockwell required? ）.

2. Sample TypeTest the size, shape, and weight of the sample.

3. test frequencyThe number of samples to be tested each day determines whether to choose manual, electric, or fully automatic.

4. budgetThe digital electric model has powerful functions but is relatively expensive, while the manual and dial models are more economical.

5. Repair of Sanfeng Rockwell Hardness Tester