PHR-4 portable Rockwell hardness tester

■PHR-4typeportable Rockwell hardness testerCompact and lightweight,This is a technological breakthrough in the field of hardness tester manufacturing. From then on, the Rockwell hardness tester achieved miniaturization and portability without reducing measurement accuracy. The weight of the instrument is only one percent of that of a desktop computer, with the minimum weight being0.7kg . Test accuracy meets national standardsGB/T230.2The regulations are the same as those for desktop computers.

■Design in accordance with the basic definition of Rockwell hardness test. The main difference from desktop computers is that their testing force is applied through a screw and a calibratedUCompleted by a type of elastomer; The instrument uses two indicators, one of which displays the magnitude of the test force by measuring the displacement of the spring; A precision spiral micrometer is used to measure indentation depth; A drum installed on the spiral micrometer is used to indicate the hardness value. The principle and structure of the instrument are based on American standardsASTM E110regulations.

■Tested Rockwell hardnessA、B、C、D、E、F、G、H、Kclass15A ruler, the testing range includes materials ranging from very soft pure aluminum, lead, tin, zinc to medium aluminum alloys, copper, brass, cold-rolled plates, galvanized plates, stainless steel to very hard quenched steel, hard alloys, etc., covering almost all common metals.
■PHR-4Type applicableThe maximum size of the sample is100mmThe minimum thickness of the sample is approximately0.6mm, minimum diameter2.5mmIt can also be tested if the inner diameter is greater than30mmThe hardness of the inner and outer surfaces of the pipe fittings or ring-shaped workpieces.
■Easy to operate and flexible to use. The instrument does not require vertical force and can directly read the hardness value. The testing operation is as simple as using a micrometer,10It can be completed in seconds. Suitable for piece by piece inspection of finished or semi-finished workpieces processed in batches, and can also be used in production sites, sales sites, and material warehouses.

■The Rockwell hardness value can be converted into Vickers, Brinell hardness value or tensile strength value by looking up a table.

■ Technical parameters

• Initial testing force:10kg

• Total test force:60kg、100kg、150kg

• Pressure Head:120Diamond cone Ф1.588mmHard alloy ball

• Force application method: screw force application

Test item: Rockwell hardnessHRC、HRB、HRAclass15A ruler
• Resolution ：0.5HRC

• Precision Degree: Less than1.5HRCCompliant with standardsGB/T230、IS06508、ASTM E18

■Scope of use: All metals, including steel, some cast iron, bronze, brass, copper, aluminum alloy, aluminum, etc.

■Model Selection Table

■ Packing list