The main component of silicone is silica dioxide, which has stable chemical properties and does not burn.Silicone products in real life in the use of more and more widely, so the silicone inspection and detection is particularly important.

So how is silicone inspected?What is the inspection standard?

One, general standard

1. Operating temperature: -15℃-+80℃

2, work relatively moderate 45-95%

3. Storage temperature :-30℃-+85℃

4. Storage time :A. The product is stored under extrusion for 1 month

B. The product can be stored flat for a long time without extrusion

5. Working pressure: 86-106kpa

6. Contact rate :5MA at 12VDC/0.5 seconds /2*107 times

Contact bounce :<12 ms

8. Insulation resistance :>1012 ohms /500VDC

9. Breakdown voltage >25KV/mm

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Second, the appearance of the

1, color

(1). Standard: after vulcanization assembly, the silica gel is not exposed and there is no major difference

(2). Detection method: under bright natural light or 40W fluorescent lamp, standard samples or color CARDS are put together with samples to be calibrated. Visual acuity is above 1.0.

2, burrs,

Standard: product edge less than or equal to 0.5mm

Locating hole: less than or equal to 0.1mm

3, eccentric

(1) standard: when the thickness of H thick-h thin elastic wall is less than or equal to 0.1mm, X=20% during mold detection;

When the thickness of elastic wall is less than or equal to 0.2mm, X=15% when the mold is tested

When the thickness of H thick +H thin elastic wall is less than or equal to 0.3mm, X=8% when the mold is tested

(2) detection method: test with thickness gauge.

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4, rupture

(1) standard: no effect on assembly and performance: less than or equal to 1.0mm

(2) detection method: measure with vernier caliper

5, material overflow

(1) standard: from the key down

Monochrome material height is less than or equal to the exposed shell height +1.0mm, after the shell can not be seen.

(3) detection method: measure with vernier caliper

6. The above characters are offset

(1) standard: central value ±0.15mm

(2) detection method: measuring with tool microscope

7, the color point bump point

(1) standard: the exposed part of silica gel after customer assembly: no obvious visible

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