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Group OverviewDongguan Jinfeng Electronics Co., Ltd. is a professional manufacturer of rotary display hinged notebook computer hinge hardware hinges. Customers include major mobile phone accessories wholesalers, electronics factories, electrical appliances factories, plastic factories, notebook computer manufacturers, hardware factories, lighting factories. Wait. Mobile: 137 2449 6370; Wangpu https://sjkpf88.1688.com official website http://www.ejf.com.cn/
Common test tools for notebook hinges
The main test tools for the shaft are: torque meter, life tester, salt spray tester
1. Torque meter: test the climbing force value and rotational torque value of the rotating shaft
The torque test is as follows:
a. Install the fixture on the torque meter;
b. Fix the shaft in the fixture;
c. Rotate uniformly at right and left;
d. Positive and negative values indicate forward and reverse torque, respectively.
Judging criteria: Torque values are based on product design or drawing requirements
2. Life tester: Test the service life of the shaft, such as the number of times the shaft is used and the rate of decay.
The test is as follows:
Load: the same weight as the panel (according to customer requirements)
Test temperature: 25 degrees ± 10 degrees
Relative humidity: 25-85% RH
Swing frequency: 4~8 cycles/min
Test range: 10 to 120 degrees
Grip position: (according to customer requirements)
Number of cycles: 25000 (according to customer requirements)
Judging criteria: Torque decay is less than or equal to 15% (according to customer requirements)
3. Salt spray test machine: detecting the surface treatment effect of the shaft
a. Adjust the solution, mix 5% salt with 95% water and mix well;
b. Place the test spindle in the device;
c. Adjust the test machine temperature to 35 degrees ± 2 degrees for 8 hours
Judging criteria: no blistering, rusting, etc. on the surface of the object.
