Hanyoyi masu gano roba da yawa na gama gari

1. Juriya ga gwajin ƙimar matsakaicin nauyi

Za'a iya ƙaddamar da samfurin da aka gama, a jiƙa a cikin ɗaya ko da dama da aka zaɓa, aunawa bayan wani zafin jiki da lokaci, kuma nau'in kayan za'a iya yin la'akari da nauyin canjin nauyi da ƙimar canjin taurin.

Alal misali, nutsewa a cikin man fetur na digiri 100 na tsawon sa'o'i 24, NBR, rubber fluorine, ECO, CR yana da ƙananan canji a cikin inganci da taurin, yayin da NR, EPDM, SBR ya ninka fiye da ninki biyu a nauyi kuma yana canzawa a cikin taurin sosai, da haɓaka girma. a bayyane yake.

2. Gwajin tsufa na iska mai zafi

Ɗauki samfurori daga samfuran da aka gama, saka su a cikin akwatin tsufa na kwana ɗaya, kuma lura da abin da ya faru bayan tsufa.Ana iya ƙara tsufa a hankali a hankali.Misali, CR, NR, da SBR za su kasance masu gatsewa a digiri 150, yayin da NBR EPDM har yanzu yana da ƙarfi.Lokacin da zafin jiki ya tashi zuwa digiri 180, NBR na yau da kullun zai zama mara ƙarfi;kuma HNBR kuma za ta kasance mai karyewa a digiri 230, kuma robar fluorine da silicone har yanzu suna da elasticity mai kyau.

3. Hanyar konewa

Ɗauki ƙaramin samfurin kuma a ƙone shi a cikin iska.lura da lamarin.

Gabaɗaya magana, rubber fluorine, CR, CSM ba su da wuta, kuma ko da harshen wuta yana ci, ya fi ƙanƙanta da NR na gaba ɗaya da EPDM.Tabbas, idan muka duba sosai, yanayin konewa, launi, da wari kuma suna ba mu bayanai da yawa.Misali, idan aka hada NBR/PVC da manne, idan aka sami tushen wuta, wutar ta fantsama da alama kamar ruwa ne.Ya kamata a lura cewa a wasu lokuta maɗaurin wuta amma manne mara halogen shima zai iya kashe kansa daga wuta, wanda yakamata a ƙara da shi ta wasu hanyoyi.

4. Auna takamaiman nauyi

Yi amfani da ma'aunin lantarki ko ma'aunin nazari, daidai zuwa gram 0.01, da gilashin ruwa da gashi.

Gabaɗaya magana, roba na fluorine yana da mafi girman takamaiman nauyi, sama da 1.8, kuma yawancin samfuran CR ECO suna da babban rabo sama da 1.3.Ana iya la'akari da waɗannan manne.

5. Hanyar ƙananan zafin jiki

Ɗauki samfurin daga ƙãre samfurin kuma yi amfani da busassun ƙanƙara da barasa don ƙirƙirar yanayi mai kyau na cryogenic.Jiƙa samfurin a cikin ƙananan yanayin zafi na minti 2-5, jin laushi da taurin a zaɓaɓɓen zafin jiki.Alal misali, a -40 digiri, irin wannan high zafin jiki da kuma man juriya silica gel da fluorine roba aka kwatanta, da kuma silica gel ne taushi.