Dalilan kumfa yayin juyawa:
Dalilin da yasa ake samun kumfa yayin hadawaresin epoxymanne shi ne cewa iskar da aka shigar yayin juyawa tana haifar da kumfa. Wani dalili kuma shine "tasirin cavitation" wanda ruwan da ake juyawa da sauri ke haifarwa. Akwai nau'ikan kumfa guda biyu: bayyane da ba a gani. Amfani da cire gas daga injin zai iya kawar da kumfa da ake gani kawai, amma ba shi da tasiri wajen cire ƙananan kumfa waɗanda idon ɗan adam ba ya gani.
Dalilan da ke haifar da kumburi a lokacin shayarwa:
Wannan kuwa saboda ana warkar da resin epoxy ta hanyar polymerization, wanda wani sinadari ne na sinadarai. A lokacin maganin warkarwa, ƙananan kumfa a cikin tsarin resin epoxy suna zafi da faɗaɗawa, kuma iskar gas ɗin ba ta dace da tsarin epoxy ba, sannan ta haɗu don samar da manyan kumfa.
Dalilan kumfa na epoxy resin:
(1) Sifofin sinadarai marasa ƙarfi
(2) Haɗawa yayin shirya mai kauri
(3) Tarin kumfa bayan tattara kauri
(4) Tsarin fitar da slurry
Haɗarin kumfa na epoxy resin yayin haɗawa:
(1) Kumfa yana haifar da cikawa da kuma shan kauri, wanda hakan zai shafi tsayin matakin ruwa da aka lura.
(2) Kumfa da sinadarin amine mai warkarwa ke haifarwa zai shafi ingancin gini.
(3) Kasancewar "kumfa mai danshi" zai haifar da polymerization na tsarin iskar gas na VCM, wanda galibi ake samarwa a cikin tukunya mai mannewa.
(4) Idan ba a cire kumfa gaba ɗaya ba yayin gini, za a samar da kumfa bayan an gama shafawa, kuma za a sami ramuka da yawa a saman bayan bushewa, wanda zai yi tasiri sosai ga ingancin samfurin.
Yadda ake kawar da kumfa daga iska?
Nau'ikan samfuran da ake amfani da su wajen lalata ƙwayoyin cuta: magungunan lalata ƙwayoyin cuta na silicone, magungunan lalata ƙwayoyin cuta marasa silicone, magungunan lalata ƙwayoyin cuta na polyether, magungunan lalata ƙwayoyin cuta na ma'adinai, magungunan lalata ƙwayoyin cuta masu yawan carbon, da sauransu.
Idan zafin ya yi ƙasa, halayen yawancin abubuwan ruwa za su canza, musamman ɗanɗanon abubuwan ruwa masu mannewa zai ƙaru yayin da zafin ya ragu.Man shafawa na Epoxy, a matsayin wani abu na ruwa na yau da kullun, yana da ƙaruwa mai yawa a cikin ƙimar ɗanko saboda raguwar zafin jiki. Saboda haka, yayin amfani da amfani, yana da wahalar kawar da kumfa, aikin lanƙwasa yana raguwa, kuma ƙaruwar lokacin amfani da lokacin lanƙwasa ba shi da amfani ga samarwa da sarrafawa na yau da kullun. Duk da haka, ta hanyar tarin shekaru da yawa na ƙwarewar samarwa, mun taƙaita wasu ƙwarewa masu taimako don magancewa da rage matsalolin da matsalolin da ke sama ke haifarwa yadda ya kamata. Musamman, akwai hanyoyi guda huɗu masu zuwa:
1. Hanyar dumama wurin aiki:
Idan zafin wurin aiki ya faɗi zuwa 25°C, ana buƙatar dumama wurin aiki mai inganci don ɗaga zafin zuwa yanayin da ya dace da aikin manne (25°C ~ 30°C). A lokaci guda, ya kamata a kiyaye danshi na iska a wurin aiki a kashi 70% ko makamancin haka, har sai zafin manne ɗin da kansa ya yi daidai da yanayin zafin yanayi kafin manne ɗin ya yi aiki kuma a yi amfani da shi yadda ya kamata.
Tunatarwa mai daɗi: Wannan hanya ita ce hanya mafi inganci, amma farashin aiki zai yi tsada sosai, don Allah a kula da lissafin kuɗi.
2. Hanyar dumama ruwan zafi:
Sanyaya zai rage darajar danko kai tsayeresin epoxymanne ab kuma ƙara shi sosai. Zafafa shi a gaba kafin amfani da manne zai ƙara zafinsa da kuma rage ƙimar ɗanko, wanda hakan zai sa ya zama mai sauƙin amfani. Hanya ta musamman ita ce a sanya dukkan ganga ko kwalbar manne a cikin ruwan zãfi a dumama shi kimanin awanni 2 kafin amfani da manne, don zafin manne ya kai kimanin 30℃, sannan a cire shi, a girgiza shi sau biyu, sannan a ajiye manne A a zafin da bai gaza 30℃ ba a cikin ruwan ɗumi a yi amfani da shi yayin dumama. A lokacin amfani, a cire manne a girgiza shi duk bayan rabin sa'a don kiyaye zafin jiki da abun da ke cikin manne ɗin sun yi daidai. Amma a yi taka tsantsan musamman kada a bar manne a cikin bokiti ko kwalba ya manne da ruwa, in ba haka ba zai haifar da mummunan sakamako.
Tunatarwa mai daɗi: Wannan hanyar tana da sauƙi, mai araha kuma mai amfani, kuma farashi da kayan aiki suna da sauƙi. Duk da haka, akwai ɓoyayyun haɗari, waɗanda ya kamata a kula da su.
3. Hanyar dumama tanda:
Masu amfani da ke da yanayin za su iya amfani da epoxy resin ab don dumama manne a cikin tanda kafin amfani da manne don guje wa haɗuwa da ruwa ba da gangan ba. Abu ne mai sauƙi. Hanya ta musamman ita ce a daidaita zafin tanda zuwa 60°C, sannan a sanya dukkan ganga ko kwalbar manne A a cikin tanda don a fara dumamawa, ta yadda zafin manne ɗin da kansa zai kai 30°C, sannan a cire manne ɗin a girgiza shi sau biyu, sannan a sanya manne a zafin da za a iya daidaita shi zuwa 30°C a tsakiyar tanda ta amfani da gefuna da aka riga aka riga aka kunna, amma a yi hankali a cire manne ɗin a girgiza shi na kimanin awa ɗaya don manne ɗin koyaushe ya kasance yana da yanayin zafi mai daidaitawa tare da sinadaran.
Tunatarwa mai daɗi: Wannan hanyar za ta ƙara farashi kaɗan, amma tana da sauƙi kuma mai tasiri.
4. Hanyar taimakon cire sinadarin sinadarai daga jiki:
Domin hanzarta cire kumfa, za ku iya siyan wani wakili na musamman na defoaming don manne mai ɗauke da epoxy resin ab-added, sannan ku ƙara manne mai rabo na 3‰ a ciki, wato takamaiman hanyar; kai tsaye ƙara ba fiye da 3% na manne zuwa manne na A wanda aka dumama ta hanyar da ke sama ba. Musamman na defoaming wakili donmanne na epoxy resin AB, sannan a gauraya daidai gwargwado sannan a gauraya da manne na B don amfani.
Shanghai Orisen New Material Technology Co., Ltd.
M: +86 18683776368 (kuma WhatsApp)
T:+86 08383990499
Email: grahamjin@jhcomposites.com
Adireshi: NO.398 Sabuwar Titin Green Garin Xinbang Gundumar Songjiang, Shanghai
Lokacin Saƙo: Janairu-07-2025