MAGNETIC ROD COILS
◆可靠性测试方法
Reliability Test Method
组别
试验 项目
试验方法
test method
判定标准
Criteria
Group
Test items
在适当的光源和放大设备上进行检查
Check on appropriate light source and magnification
equipment
外观
1.1
1.2
1.3
appearance
用精度不少于 0.02mm 的量具测量。
符合产品标准要求
尺寸
1
Measure with a measuring tool with an accuracy of Meet the requirements of product
size
no less than 0.02mm.
standards
电性能
Electrical
由相应的测试仪进行测试
Test with the appropriate tester
performance
焊锡温度:255℃±5℃
浸渍时间:2.5s±0.5s
可焊性
上锡率≥95%
2.1
Solder temperature: 255 ℃± 5 ℃
Weldability
Tinning rate ≥ 95%
Immersion time: 2.5s ± 0.5s
试验温度:40℃±2℃
试验湿度:(90%~95%)RH
试验时间:500 h±2 h
恢复时间:24 h±2 h
外观无明显损伤,
-10%≤△L/L≤10%
恒定湿热
Steady
2.2
There is no obvious damage to
the appearance,
Test temperature: 40 ℃± 2 ℃
Test humidity: (90%~95%) RH
Test time: 500 h ± 2 h
damp-heat
-10%≤△L/L≤10%
Recovery time: 24 h ± 2 h
磁芯拉拔力
Core drawing
force
拉拔力测试仪
2.3
≥5kg
Pulling force tester
外观无明显损伤,产品电气性能符
合要求
1m 高度自由落下水泥地,3 次
Free fall on the cement floor at a height of 1m,
3 times
跌落
There is no obvious damage to
the appearance, and the
electrical performance of the
product meets the requirements
2.4
flammability
将元件浸入锡炉内,浸渍到锡面平齐产品本体最低点
(即平齐磁芯底部端面或套管底部端面),焊锡温度
为 350℃±5℃,浸渍时间为 3s±0.5s
外观无明显损伤,
5%≤△L/L≤5%
Immerse the element in the tin furnace, and
immerse it to the lowest point of the tin surface
flush with the product body (i.e. flush the bottom
end face of the magnetic core or the bottom end
face of the sleeve). The soldering temperature is
350 ℃± 5 ℃, and the immersion time is 3s ±
0.5s
耐焊接热
2.5
Resistance to
welding heat
There is no obvious damage to
the appearance,
5%≤△L/L≤5%
4