1、 Purpose:
This testing machine is mainly used for the friction coefficient and wear rate of friction materials such as asbestos, powder metallurgy, and asbestos free materials
Testing. Executable standard: GB5763-2008 Brake lining for automobiles; GB/T5764-2011 Automotive
Use clutch face plates; GB/T11834-2011 Asbestos Friction Plates for Industrial Machinery; QC/Y227.1-2009 Motorcycle
Test method for friction performance of brake pads for cars and light motorcycles.
2、 Working principle (process) description:
The basic structure and main parameters of this model are specified in GB5763-2008. The AC motor is driven by a V-belt on a vertical shaft, with a disc on the upper end of the shaft and a friction surface on the upper surface. The specimen is clamped on the loading arm, and the lever is loaded downwards through the vertical axis. The load size is determined by the weight, and the computer controls the entire process of the test.
3、 Main technical parameters:
Temperature: The temperature measurement and control range is 0-450 ℃, with a measurement accuracy of 1 ℃ and a measurement error of 5 ℃.
Friction force: measurement range 0-2000N, measurement accuracy 1.0N, measurement error 10.0N
Wheel speed: 480~500r/min, measurement accuracy of 1 revolution, measurement error of 1 revolution.
Power: Host 7.5kw, heating tube 4.5kw, fan 120w, total power: 12.12kw.
Friction disc: Made of gray cast iron HT-250, with a Brinell hardness of 185~215HB and a pearlite structure.
Sample: Area 25mm × 25mm, thickness 5-7mm, 2 pieces
Friction radius: R=150mm
Positive pressure: 0.49Mpa, 0.98Mpa
Loading weight: 1.25kg per piece, 2.5kg per piece, 3 pieces
Dimensions: Host 1400 × 900 × 1200
Control cabinet: 500 × 300 × 800
Weight: Approximately 1000kg
Main control component: Computer DELL mainstream configuration
Color inkjet printer (purchased by the purchaser)
Sensing element force sensor - range 0-200kg, 0.05 level, non-linear error 0.05% F.S
Thermocouple -0-400 ℃, E division.
Proximity switch - E4-D5NK
4、 Characteristics:
Computer control, automatic measurement of friction force and rotation speed, automatic calculation of friction coefficient and wear rate;
Automatic and precise control of experimental temperature by computer;
Selectable, English operation interface;
Automatically draw curves and print test results in both Chinese and English.