What are the basic specifications of a digital Brinell hardness tester?-Shanghai Shangcai Testing Machine Co., Ltd.

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What are the basic specifications of a digital Brinell hardness tester?

Release Date:

2023-03-17 10:50

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　　Digital Display Brinell Hardness Accounting It is designed based on the principle of the Rockwell hardness test. To measure Rockwell hardness, only one side of the specimen needs to be in contact with the indenter. The Rockwell hardness tester head is held against the steel surface by magnetic force, and the specimen must be properly supported. Measurement accuracy complies with GB/T 230 and ISO 6508 standards, meeting or exceeding that of conventional benchtop Rockwell hardness testers. This method is characterized by its simplicity, rapid measurement, and direct readout from a dial gauge, display, or optical projection display. Alongside Brinell and Vickers hardness testing, it has become one of the three most commonly used hardness-testing methods. In fact, digital Brinell hardness testers offer high measurement accuracy, compact size, ease of operation, convenient portability, and a wide measurement range.

　　Digital Brinell hardness testers are now primarily used for hardness testing in confined spaces of mechanical components, for analyzing equipment failures, for quality control of mass‑produced parts, for on‑site hardness measurement of assembled mechanical parts after installation, and for assessing the hardness of heavy‑duty workpieces. These instruments are also employed to measure the hardness of materials such as rubber, foam, and plastics, and come in two main types: one for soft rubbers and the other for harder rubbers or plastics. As you’ll soon see, a digital Brinell hardness tester is relatively compact and can convert readings into various hardness scales. It is mainly used for evaluating metallic materials and larger workpieces, and it can also be applied to test coating hardness. To assess coating hardness, a pencil is clamped onto a “carriage” and drawn across the surface; the coating’s hardness is determined by comparing the pencil’s grade with the resulting scratch marks.

　　The Brinell hardness indenter of the digital display hardness tester can be measured in real time on the instrument via the micrometer eyepiece, and the test force, indenter diameter, dwell time, measurement frequency, scale selection, and date are displayed more intuitively on the screen. During operation, simply measure the indenter diameter and press the eyepiece button to quickly calculate the hardness value and display it on the screen. The digital Brinell hardness tester’s data and results can be saved for report retrieval and exported via its built-in printer. It is suitable for measuring the hardness of cast iron, structural steels, non‑ferrous metals, and soft aluminum alloys, as well as for assessing the hardness of hard plastics and other non‑metallic materials.

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