Dalilan kumfa yayin motsawa:
Dalilin da ya sa kumfa ake generated a lokacin hadawa tsari naepoxy guduromanne shi ne cewa iskar da aka gabatar yayin aikin motsa jiki yana haifar da kumfa. Wani dalili kuma shine "tasirin cavitation" wanda aka haifar da ruwa yana motsawa da sauri. Akwai kumfa iri biyu: bayyane da ganuwa. Yin amfani da vacuum degassing zai iya kawar da kumfa da ake iya gani kawai, amma ba shi da tasiri wajen cire ƙananan kumfa waɗanda ba za su iya ganuwa ga idon ɗan adam ba.
Dalilan kumfa a lokacin warkewa:
Wannan saboda resin epoxy yana warkewa ta hanyar polymerization, wanda shine halayen sinadarai. A lokacin maganin maganin, ƙananan kumfa a cikin tsarin resin epoxy suna zafi da faɗaɗawa, kuma iskar gas ba ta dace da tsarin epoxy ba, sannan ta taru don samar da kumfa mafi girma.
Abubuwan da ke haifar da kumfa resin epoxy:
(1) Abubuwan sinadarai marasa ƙarfi
(2) Cakudawa lokacin shirya kauri
(3) Kumfa bayan tarin kauri
(4)Tsarin fitar da slurry
Hatsari na kumfa resin epoxy yayin hadawa:
(1) Kumfa yana haifar da ambaliya da yawan amfani da shi, wanda kuma zai shafi tsayin matakin ruwa da aka gani.
(2) Kumfa da ke haifar da maganin amines na kwayoyin halitta zai shafi ingancin gini.
(3) Kasancewar "rigakafin kumfa" zai haifar da yanayin polymerization na VCM, wanda gabaɗaya ke samarwa a cikin tudu mai ɗaure.
(4) Idan ba a cire kumfa gaba ɗaya yayin ginin ba, za a sami kumfa bayan an warke, kuma za a sami ramuka da yawa a saman bayan bushewa, wanda zai yi tasiri sosai ga ingancin samfur.
Yadda za a kawar da kumfa na iska?
Na'urar samfuran takardar na'urorin wakilai na yau da kullun: Silicone zai lalata wakilan silicone, wakilai na Polyethon na wakilan masu ba da labari, da sauransu.
Lokacin da zafin jiki ya yi ƙasa, halayen mafi yawan abubuwan ruwa Canje-canje za su faru, musamman ma ɗanƙoƙin abubuwan ruwa mai mannewa zai ƙaru yayin da zafin jiki ya ragu.Epoxy resin ab manne, a matsayin wani abu na al'ada na ruwa, yana da karuwa mai yawa a darajar danko saboda raguwar zafin jiki. Sabili da haka, a lokacin amfani da amfani, kumfa yana da wuya a kawar da su, an rage yawan aiki mai laushi, kuma karuwar lokacin amfani da lokacin warkewa bai dace da samarwa da sarrafawa na yau da kullun ba. Koyaya, ta hanyar tarin shekaru masu yawa na ƙwarewar samarwa, mun taƙaita wasu ƙwarewa masu taimako don magance yadda yakamata da rage matsalolin da matsalolin da ke sama suka haifar. Musamman, akwai hanyoyi guda huɗu masu zuwa:
1. Hanyar dumama wurin aiki:
Lokacin da zafin jiki a wurin aikin ya faɗi zuwa 25 ° C, ana buƙatar ingantaccen dumama wurin aiki don ɗaga zafin jiki zuwa yanayin da ya dace da aikin manne (25 ° C ~ 30 ° C). A lokaci guda, yanayin zafi na dangi a wurin aiki ya kamata a kiyaye shi a 70%. ko makamancin haka, har sai zafin manne da kansa yayi daidai da yanayin yanayin kafin manne ya iya aiki kuma a yi amfani da shi yadda ya kamata.
Tunatarwa mai dumi: Wannan hanyar ita ce hanya mafi inganci, amma farashin aiki zai yi yawa, da fatan za a kula da lissafin farashi.
2. Hanyar dumama ruwan tafasa:
Cooling zai kai tsaye rage danko darajarepoxy guduroab manne da muhimmanci ƙara shi. Yin dumama shi a gaba kafin amfani da manne zai kara yawan zafin jiki kuma ya rage darajar danko, yana mai sauƙin amfani. Hanya ta musamman ita ce a zuba ganga ko kwalbar dunƙule gabaɗaya a cikin ruwan zãfi a dumama shi kamar awanni 2 kafin a yi amfani da manne, ta yadda mannen ɗin zai kai kusan 30 ℃, sannan a fitar da shi, a girgiza shi sau biyu, sannan a ajiye mannen A a zafin da bai gaza 30℃ ba a cikin ruwan dumi sannan a yi amfani da shi yayin dumama. Lokacin amfani, fitar da manne kuma girgiza shi kowane rabin sa'a don kiyaye yanayin zafi da abun da ke ciki na manne. Amma a kula musamman kar a bar man da ke cikin guga ko kwalbar ya manne a ruwan, in ba haka ba zai haifar da mummunan sakamako.
Tunatarwa mai ɗorewa: Wannan hanya mai sauƙi ce, mai tattali kuma mai amfani, kuma farashi da kayan suna da sauƙi. Duk da haka, akwai haɗari masu ɓoye, waɗanda ya kamata a kula da su.
3. Hanyar dumama tanda:
Masu amfani waɗanda ke da yanayin za su iya amfani da resin epoxy ab don dumama manne a cikin tanda kafin amfani da manne don guje wa haɗuwa da ruwa ta bazata. Yana da sauqi qwarai. Hanyar da ta dace ita ce a daidaita zafin tanda zuwa 60 ° C, sannan a sanya ganga ko kwalban A cikin tanda gaba daya don yin zafi, ta yadda zafin jikin da kansa ya kai 30 ° C, sannan a fitar da gam din a girgiza shi sau biyu, sannan a saka manne a zafin jiki na daidaitawa zuwa 30 ° C a tsakiyar tanda ta amfani da gefuna da aka rigaya, amma a kula don shayar da shi ko da yaushe don shayar da shi. simmetrical zafin jiki tare da sinadaran .
Tunatarwa mai dumi: Wannan hanyar kuma za ta ƙara farashi kaɗan, amma yana da sauƙi da inganci.
4. Hanyar taimakawa wakili mai lalata kumfa:
Domin moderately hanzarta kau da kumfa, za ka iya kuma saya na musamman defoaming wakili ga epoxy guduro ab-kara manne, da kuma ƙara A manne tare da wani rabo na 3 ‰ ciki, da takamaiman hanya; kai tsaye ƙara ba fiye da 3% na manne zuwa ga manne mai zafi ta hanyar da ke sama. Wakilin defoaming na musamman donepoxy resin AB manne, sannan a jujjuya daidai gwargwado a gauraya da manne 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 Koren Titin Xinbang Garin Songjiang, Shanghai
Lokacin aikawa: Janairu-07-2025