Cosmetic packaging materials airtightness hi engtin nge kan test ang?

A airtightness testing a ni a Cosmetic Packaging hmanga siam a ni materials hian transportation leh storage pressure a simulate ber a, pressure differential hmangin leak a hmuchhuak bawk. I mamawh detection dikna leh hmanraw awm dan azirin, hmanraw lian pathum a awm a, chung zingah chuan vacuum attenuation method hian accuracy sang ber a nei a, tui hnuaia bubble method hi a awlsam ber a ni.

✔ tih a niMainstream Detection hmanrua te

🔬 tih a niVacuum attenuation method (high precision/non-destructive):Sample chu chamber chhungah dahin vacuum lak a ni. Leakage hi pressure inthlak danglam dan enfiah atanga hriat theih a ni. Sensitivity hi ≤1×10−6 mbar·L/s a tling thei a, hei hian sealing mamawhna sang tak nei product tan a tha hle.

💧Tui hnuaia bubble method (intuitive/low cost):Bottle chhungah boruak (a tlangpuiin 20-100 kPa) i dah hnuah tuiah thun la, bubble awm chhunzawm zel tur enfiah rawh. Hetiang hmang hian leak point chu direct-in a hmu thei a, mahse test tichhe thei tak a ni a, leak tenau te pawh hmuh tur a awm lo mai thei.

⏳ tih a niPressure decay method (gas source container nen):Container chu inflating hnuah gas supply off la, internal pressure drop chu enfiah rawh. Standard pawm theih zingah hian minute 30 chhunga pressure drop ≤1 kPa/min emaw drop ≤5% emaw a tel. Pump lu, spray can, etc. ah hman theih a ni.

⚙ tih a niHnathawh dan tur

Eng kawng pawh hmang ila, a kalphungah hian a tlangpuiin heng step te hi a tel a ni:

1. Sample buatsaih dan: Sample chu a fai leh vawt em tih enfiah la, a hawnna pangngai zawng zawng chu seal vek rawh (eg, pump lu chu rubber stopper hmangin plug rawh).
2. Parameters setting: Pressure (20-100 kPa ang chi) leh pressure holding time (second 30 atanga minute 5) set nan national standards (GB/T 15171 ang chi) en rawh.
3. Test ti rawh: Thil hmanrua chu start la, pressure curve enfiah emaw, bubble awm leh awm loh mit hmanga enfiah emaw.
4. Rorelna result: 1.1.

Quantitative: Leakage rate chu standard aiin a hniam tur a ni a, chu chu ≤0.1 mL/min a ni tur a ni.

Qualitative: Bubble chhunzawm zel a awm loh chuan test hi a qualified tih a tilang.

5. Faina: Test zawhah sample chu phih fai la, vacuum chamber atanga tui chu hlip rawh.

⚠ tih a niFimkhur tur pawimawh tak tak

Airtight leh liquid-tight thliar hranna: Gas molecule hi liquid molecule aiin a te zawk hle a, chuvangin gas tightness test pass chuan liquid tightness test pass a tichiang lo. Test medium chu a chhunga thil awmte a zirin thlan tur a ni.

Simulates actual working conditions: Product chu phurh chhuah laiin a tlak emaw, a stack emaw hnuah a sealing performance a tlahniam thei. Sample drop leh vibration simulation nei tawhte chu airtightness test neih a tha.

Environment leh Safety: Thil kang thei test hunah nitrogen ang chi inert gas hmang thin ang che; gas source chu a thianghlim leh a vawt tih enfiah rawh.

📌 tih a niThupui leh Thurawn

Routine spot check i neih chuan tui hnuaia bubble method (GB/T 15171 en rawh) hian a man tlawm ber a pe a; Factory inspection emaw R&D verification atan chuan vacuum decay method hman a tha;Pamp head leh sprayer ang chi product tan chuan pressure decay method hi a tha ber.