Njira yodziwira Dacromet Tsatanetsatane

Adalemba pa 2015-05-14Choyamba, mawonekedwe:
Mu kuwala kwachilengedwe refraction, ndi maso amaliseche.Zovala zoyambira za zinc chromate ziyenera kukhala zotuwa, zitha kupezekanso posintha mitundu ina, monga yakuda.Kupaka kwa zinc chromate kuyenera kukhala kosalekeza, ❖ kuyanika mopanda msoko, thovu, kukwapula, kusweka, kupindika, kuphatikizika ndi zolakwika zina.Kupaka kuyenera kukhala kofanana, osadziwikiratu kuti zonenepa za m'derali zokhuthala kwambiri.The ❖ kuyanika sayenera discolor, koma amalola yaing'ono chikasu mawanga alipo.
Chachiwiri, kuchuluka kwa zokutira ndi makulidwe a zokutira mayeso:
Standard ❖ kuyanika kuchuluka kwa ❖ kuyanika makulidwe kapena ❖ kuyanika magiredi osiyanasiyana ogaŵikana m'magiredi anayi, njira ziwiri zingagwiritsidwe ntchito kuzindikira:

1, njira yoyezera njira: kulemera kwachitsanzo ndi kwakukulu kuposa 50g, kumagwiritsa ntchito kulondola kwa 1mg kuti kunali misa yapachiyambi W1 (mg), chitsanzocho chinayikidwa mu 70 ℃ ~ 80 ℃ ya 20% NaOH yankho lamadzimadzi, likuwukha 10min, zinki. zokutira za chromium zasungunuka kwathunthu.Zitsanzo anatengedwa, bwinobwino kutsukidwa ndi madzi atangomaliza kuyanika, ❖ kuyanika anali kusungunuka, anati unyinji wa mayeso pambuyo W2 (mg).Ndipo kuwerengera kuchuluka kwa malo a "workpiece S (dm2), molingana ndi chilinganizo chotsatirachi kuti muwerengere kuchuluka kwa zokutira za W (mg / dm2):
W = (W1-W2) / S

2, njira ya microscope: akanikizire zofunikira za GB / T6462, pogwiritsa ntchito microscope yamaso idagwiritsidwa ntchito kuzindikira makulidwe akuya.
Chachitatu, kuyesa kwamphamvu kwa adhesion:
Pogwiritsa ntchito njira yoyesera tepi, mphamvu yomatira imazindikira zokutira za zinc chromate ndi gawo lapansi, komanso kuyesa kwa tepi malinga ndi zofunikira za GB / T5270-1985 mu gawo 1.4.Pambuyo zofunika mayeso sangathe peeled pa ❖ kuyanika ku gawo lapansi, kapena kutsegula kumapeto, koma kulola zomatira tepi kusinthika ndi nthaka, zotayidwa mbewu.
Kukana madzi mayeso: chitsanzo anamizidwa m'madzi deionized 40 ℃ ± 1 ℃, ndi mosalekeza kumizidwa 240h, pambuyo chitsanzo anatengedwa ndi zouma firiji, ndiye adhesion mphamvu kuyezetsa, zotsatira mayeso ayenera kukwaniritsa zofunika za adhesion mphamvu. mayeso.Adhesion mphamvu mayeso ayenera kuchitika mkati 2h chitsanzo anachotsedwa pa malo madzi deionized.Pambuyo poyesa kukana madzi, zokutira sizingagwedezeke kapena kutseguka kumapeto kwa gawo lapansi.