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Friction wear testing machine

A wear test and abrasive technology, applied in the direction of testing wear resistance, using mechanical devices, measuring devices, etc., can solve problems such as inability to detect wear resistance of cemented carbide products

Active Publication Date: 2009-01-14
株洲长江硬质合金工具有限公司
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned ASTM B611 wear test method and device in the test can not carry out the continuous wear test of loading force change, can not detect the technical defects such as the wear resistance of cemented carbide products under actual working conditions, provide a kind of An industrial friction and wear testing machine that can detect the wear resistance and friction properties of cemented carbide products under close to actual working conditions

Method used

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Embodiment Construction

[0012] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0013] The friction and wear testing machine of the present invention adopts the same friction method as the ASTM B611 standard. The main machine has a horizontal structure and is installed on the machine base 12 as a whole. The main components include servo sand feeding trough 1, grinding steel wheel 2, abrasive accommodating trough 7, afterburner 3, spring servo loading mechanism 6, main shaft 13, bearing seat 8 and variable frequency speed regulating drive motor 11, etc.

[0014] The servo sand supply trough 1 is fixed on the machine base 12 and is installed directly above the abrasive container 7. The dry grinding medium contained in the servo sand supply trough 1 flows out from the sand discharge nozzle of the trough 1 and is transported to the Between the sample 4 and the surface of the wheel shell of the grinding steel wheel 2 to wear the sample 4. Accord...

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Abstract

The invention discloses a friction wear testing machine and comprises an abrading agent slot, a grinding steel wheel that is suspended in the abrading agent slot, a boosting lever that has a vertical arm suspended between the grinding steel wheel and a lateral wall of the abrading agent slot, a servo sand slot that has a sand discharging mouth and a transmission pipe, a servo spring loading mechanism that is connected with a horizontal arm of the boosting lever, a load sensor that is serially connected between the servo spring loading mechanism and the boosting lever and a temperature sensor that is arranged on the back of a sample. A main shaft of the grinding steel wheel is arranged on a bearing holder, connected with a torque sensor through a flexible coupler and connected with a frequency-varied speed-regulating drive motor, and a computer adjusts and detects the sand discharge amount of the sand slot, the rotating speed and the torque of the frequency-varied speed-regulating drive motor, and the loading capacity of the servo spring loading mechanism in real time, and can detect and record the rotational frequency of the grinding steel wheel and sample temperature in real time. The friction wear testing machine can detect and analyze the abrasion resistance and the frictional behaviour of hard alloy products under the conditions close to real working conditions.

Description

Technical field [0001] The invention relates to a friction and wear testing machine, in particular to a friction and wear testing machine for detecting the friction and wear performance of hard alloys. Background technique [0002] At present, in the industrial production of cemented carbide, there is no suitable friction and wear tester for testing the wear resistance and friction performance of cemented carbide products. In the experiment, the wear test of cemented carbide generally follows the American standard ASTM B611 "Standard Test Method for Abrasive Wear Resistance of Cemented Carbides" or the American standard ASTM G65 "Standard Test Method for Measuring Abrasion Using the Dry Sand / Rubber Wheel Apparatus". The two test methods are basically the same except for the supply of abrasives. ASTM B611 is dedicated to the wear test of cemented carbide. Figure 4 A schematic diagram of the friction method provided for ASTM B611. In the test, the loading force generated by the we...

Claims

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Application Information

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IPC IPC(8): G01N3/56G01N19/02
Inventor 邱智海马绍宏
Owner 株洲长江硬质合金工具有限公司
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