What feasibility tests will be done for the new dial switch


What feasibility tests will be done for the new dial switch

1. Weldability test

The top of the terminal is immersed in the solder pool for 1 mm, the temperature is 230 ± 5 ℃, and the time is 3 ± 0.5 seconds

careful:

(1) The welding time shall be less than 3 seconds

(2) The welding area shall be more than 80%

2. Welding resistance test

The time-division temperature of the welding furnace shall be controlled at 260 ± 5 ℃, the furnace passing time shall be 3 ± 0.5 seconds, and the thickness of the substrate shall be 1.0 mm. The time-division temperature of the manual welding shall be controlled at 320 ± 5 ℃, and the time shall be 3 ± 0.5 seconds

Requirements: It is necessary to meet the requirements of no deformation of the body and mechanical and electrical energy

3. Life test

No-load test: the operator performs no-load test for 100000 times at the frequency of 60 times per minute.

requirement:

(1) Touch resistance shall not exceed 200m Ω

(2) Others are satisfied with mechanical and electrical functions

4. Heat resistance test

Place it at 85 ± 2 ℃ for 96 hours, and then place it at normal room temperature for 1 hour

Requirements: The appearance shall be free from abnormal and meet the mechanical and electrical functions

5. Cold resistance test

Place at 40 ± 2 ℃. After 96 hours in the environment with the relative humidity of 90~96%, put the sample in the normal environment for 1 hour for inspection.

Requirements: The appearance shall be normal and meet the mechanical and electrical functions

6. Wetting test

Place at 40 ± 2 ℃. After 96 hours in the environment with the relative humidity of 90~96%, put the sample in the normal environment for 1 hour for inspection.