Sabbin Hanyoyi na Aikace-aikace da Halayen Adhesives (2)

Sabbin Hanyoyi na Aikace-aikace da Halayen Adhesives (2)

1. 1. Juriya na zafin jiki

Inorganic high zafin jiki adhesives yawanci amfani a cikin kewayon 1500-1750 ℃, yayin da jan karfe phosphate oxide adhesives da fadi da zafin jiki kewayon juriya kuma za a iya amfani da a cikin kewayon 180-1400 ℃. Duk da haka, manyan abubuwan da ake amfani da su a cikin mannen zafin jiki na inorganic sune yashi zircon da ƙasa mai raɗaɗi. Yashi na zircon yana da tsada sosai kuma galibi yana dogara ne akan shigo da kaya, kuma dole ne a sami ƙasa mai jujjuyawa akan ƙasa, wanda ke da tsada. Sabili da haka, yana da mahimmanci a nemo samfura masu arha da sauƙi don maye gurbin tarin gargajiya don rage farashin samarwa. Wasu mannen kwayoyin halitta kuma sun sami juriya mai zafi ta hanyar gyarawa. Misali, manne phenolic guduro wanda aka gyara tare da B4C zai iya jure yanayin zafi na 1500 ℃. Buƙatar kasuwa don zafi - mannen da ke jurewa yana girma koyaushe, don haka irin wannan mannen yana da fa'idodin haɓakawa.

2. 2. Karancin gurbacewa

Yayin da yanayin duniya ke tabarbarewa, a hankali mutane sun fara amfani da wasu kayayyakin da ba su dace da muhalli ba. Kodayake manne ba babban nau'in samfuran sinadarai bane, ba za a iya yin watsi da cutar da su ga muhalli ba. Wadancan mannen da ba su dace da muhalli ba za a yi watsi da su a hankali. Polyethylene formaldehyde adhesive (wanda aka fi sani da "107 glue") yana dauke da formaldehyde kyauta, wanda ke cutar da lafiyar ɗan adam. An dade ana hana shi a kasashen da suka ci gaba, amma a kasata, saboda karancin farashi, har yanzu tana da kaso mai tsoka a kasuwa. Koyaya, amfani da shi ya ragu a hankali kuma nan ba da jimawa ba za a kawar da shi gaba ɗaya. Yadda ake gyaggyara abubuwan da ba su dace da muhalli ba zuwa adhesives masu dacewa da muhalli aiki ne mai mahimmanci.

3. 3. Haɗin kai mara lalacewa

Babban hanyoyin haɗa kayan sun haɗa da bolting, riveting, walda da haɗin gwiwa. Kodayake bolting da sauran fasahohin na iya samun haɗin kai cikin sauri, za su lalata kayan saboda ɓarna ko dumama sassan kayan abu, kuma ba za a iya guje wa damuwa yayin amfani ba. Sabanin haka, fasahar haɗin gwiwa ba fasaha ce mai lalata ba, kuma saboda haɗin haɗin gwiwa yana ɗaukar nauyi gaba ɗaya, yana inganta ƙarfin lodi kuma yana tsawaita rayuwar sabis.

4. Mai nauyi

Yawan mannewa yana da ƙasa kaɗan, galibi tsakanin 0.9 da 2, wanda shine kusan kashi 20% zuwa 25% na yawan ƙarfe ko kayan da ba a haɗa su ba, don haka yana iya rage nauyin abin haɗawa da abin da aka haɗa.