Njira zingapo zodziwika bwino zodziwira mphira

1. Kukana mayeso a kunenepa kwapakati

Chogulitsa chomalizidwacho chikhoza kuyesedwa, kuviikidwa mu chosindikizira chimodzi kapena zingapo zosankhidwa, kuyezedwa pambuyo pa kutentha ndi nthawi inayake, ndipo mtundu wa chinthucho ukhoza kuganiziridwa malinga ndi kusintha kwa kulemera ndi kusintha kwa kuuma.

Mwachitsanzo, kuviikidwa mu mafuta a digiri 100 kwa maola 24, NBR, rabara ya fluorine, ECO, CR ili ndi kusintha pang'ono kwa khalidwe ndi kuuma, pomwe NR, EPDM, SBR imawirikiza kawiri kulemera ndi kusintha kwa kuuma kwambiri, ndipo kukula kwa voliyumu n'kodziwikiratu.

2. Mayeso okalamba a mpweya wotentha

Tengani zitsanzo kuchokera ku zinthu zomalizidwa, ziikeni m'bokosi lokalamba kwa tsiku limodzi, ndipo yang'anani zomwe zikuchitika mutakalamba. Kukalamba pang'onopang'ono kumatha kuwonjezeka pang'onopang'ono. Mwachitsanzo, CR, NR, ndi SBR zidzakhala zofooka pa madigiri 150, pomwe NBR EPDM ikadali yosalala. Kutentha kukakwera kufika madigiri 180, NBR wamba idzakhala yofooka; ndipo HNBR idzakhalanso yofooka pa madigiri 230, ndipo rabara ya fluorine ndi silicone zimakhalabe ndi kusalala kwabwino.

3. Njira yoyaka

Tengani chitsanzo chaching'ono ndikuchiwotcha mlengalenga. Yang'anani chodabwitsachi.

Kawirikawiri, rabara ya fluorine, CR, CSM sizimayaka moto, ndipo ngakhale lawi likuyaka, ndi laling'ono kwambiri kuposa NR ndi EPDM wamba. Zachidziwikire, ngati tiyang'ana bwino, momwe kuyaka, mtundu, ndi fungo zimatipatsanso chidziwitso chambiri. Mwachitsanzo, NBR/PVC ikaphatikizidwa ndi guluu, pamene pali gwero la moto, moto umatuluka ndipo umawoneka ngati madzi. Tiyenera kudziwa kuti nthawi zina guluu woletsa moto koma wopanda halogen umadzizimitsa wokha pamoto, zomwe ziyenera kuganiziridwanso ndi njira zina.

4. Kuyeza mphamvu yokoka yeniyeni

Gwiritsani ntchito sikelo yamagetsi kapena kuwerengera bwino, kolondola mpaka 0.01 gramu, kuphatikiza kapu yamadzi ndi tsitsi.

Kawirikawiri, rabara ya fluorine imakhala ndi mphamvu yokoka kwambiri, yoposa 1.8, ndipo zinthu zambiri za CR ECO zimakhala ndi gawo lalikulu loposa 1.3. Maguluu amenewa akhoza kuganiziridwa.

5. Njira yotsika kutentha

Tengani chitsanzo kuchokera ku chinthu chomalizidwa ndikugwiritsa ntchito ayezi wouma ndi mowa kuti mupange malo oyenera okhala ndi cryogenic. Zilowetseni chitsanzocho pamalo otentha pang'ono kwa mphindi 2-5, mumve kufewa ndi kuuma kwake pa kutentha komwe mwasankha. Mwachitsanzo, pa madigiri -40, silica gel ndi rabara ya fluorine yofanana ndi kutentha kwakukulu komanso kukana mafuta zimayerekezeredwa, ndipo silica gel ndi yofewa.