labarai

1. Gyaran Hannu

Yin gyare-gyaren hannu shine hanya mafi al'ada don ƙirƙirar filaye masu ƙarfafa filastik (FRP). Wannan dabarar ta ƙunshi sanya resin-impregnated da hannufiberglass zaneko tabarma a cikin wani mold da kyale su warke. Ƙayyadadden tsari shine kamar haka: Na farko, an ƙirƙiri wani Layer na ciki mai wadatar resin ta amfani da resin da fiberglass. Bayan layin layi ya warke, an cire shi daga mold, kuma an gina tsarin tsarin. Sannan ana goga resin a kan saman mold da na ciki. An shimfiɗa yadudduka na fiberglass ɗin da aka riga aka yanke bisa ga wani ƙayyadaddun tsarin tarawa, tare da haɗa kowane Layer ta amfani da abin nadi don tabbatar da cikas. Da zarar an sami kauri da ake so, taron yana warkewa kuma an rushe shi.

Gudun matrix don gyare-gyaren hannu yawanci yana amfani da epoxy ko polyester unsaturated, yayin da kayan ƙarfafawa shine matsakaici-alkali koFiberglass ba tare da alkali ba.

Abũbuwan amfãni: Ƙananan buƙatun kayan aiki, ikon samar da flanges marasa daidaituwa, kuma babu ƙuntatawa akan joometry na flange.

Rashin hasara: Kumfa na iska da aka kafa a lokacin maganin resin zai iya haifar da porosity, rage ƙarfin injin; ƙarancin samar da inganci; da rashin daidaituwa, gamawar saman da ba ta da kyau.

2. Matsi Molding

Yin gyare-gyaren matsi ya haɗa da sanya adadi mai ƙididdigewa na kayan gyare-gyare a cikin ƙirar flange da kuma magance shi a ƙarƙashin matsin lamba ta amfani da latsa. Kayan gyare-gyaren sun bambanta kuma suna iya haɗawa da mahaɗaɗɗen gajerun fiber-yanke ko pre-impregnated gajeriyar mahadi na fiberglass, sake yin fa'ida ta fiberglass zane, zoben fiberglass da yawa na guduro, zanen SMC (filin gyare-gyaren takarda), zanen gadon SMC (filin gyare-gyaren takarda), ko prewoven fiberglass preforms. A cikin wannan hanyar, faifan flange da wuyan suna gyare-gyaren lokaci guda, suna haɓaka ƙarfin haɗin gwiwa da amincin tsarin gabaɗaya.

Abũbuwan amfãni: Madaidaicin girman girma, maimaitawa, dacewa don samar da taro mai sarrafa kansa, ikon samar da hadaddun flanges na wuyansa a mataki ɗaya, da filaye masu santsi masu kyau waɗanda ba sa buƙatar aiwatarwa.

Hasara: Maɗaukakin farashi mai ƙima da iyakancewa akan girman flange saboda ƙaƙƙarfan gadon latsa.

3. Resin Transfer Molding (RTM)  

RTM ya haɗa da sanya ƙarfin fiberglass a cikin rufaffiyar ƙira, allurar guduro don zubar da zaruruwa, da warkewa. Tsarin ya haɗa da:

• Sanya preform na fiberglass wanda yayi daidai da geometry na flange a cikin kogon mold.
• Aiwatar da guduro mai ƙarancin danko a ƙarƙashin yanayin da ake sarrafawa da matsa lamba don saturate preform da kawar da iska.
• Dumama don warkewa da lalata flange da aka gama.

Resins yawanci polyester ne mara kyau ko epoxy, yayin da ƙarfafawa ya haɗa dafiberglass ci gaba da tabarmako saka yadudduka. Za a iya ƙara abubuwan da suka dace kamar calcium carbonate, mica, ko aluminum hydroxide don haɓaka kaddarorin ko rage farashi.

Abũbuwan amfãni: Filaye mai laushi, babban yawan aiki, rufaffiyar gyare-gyaren aiki (ƙananan hayaki da haɗarin lafiya), daidaitawar fiber na jagora don ingantaccen ƙarfin, ƙananan zuba jari, da rage yawan kayan aiki/makamashi.

4. Vacuum-Assissted Resin Transfer Molding (VARTM)

VARTM tana gyara RTM ta hanyar allurar guduro a ƙarƙashin injin. Tsarin ya haɗa da rufe fom ɗin fiberglass a kan ƙirar namiji tare da jakar injina, fitar da iska daga kogon ƙura, da zana guduro cikin preform ta hanyar matsa lamba.

Idan aka kwatanta da RTM, VARTM yana samar da flanges tare da ƙananan porosity, mafi girman abun ciki na fiber, da ingantaccen ƙarfin inji.

5. Canja wurin guduro mai taimakon jaka

Yin gyare-gyaren RTM ɗin jakar iska kuma nau'in fasaha ne na gyare-gyaren da aka ƙera akan tsarin RTM. Tsarin shirya flanges ta wannan hanyar yin gyare-gyaren shine kamar haka: ana sanya nau'in fiber preform na gilashin flange a saman jakar iska, wanda aka cika da iska sannan kuma yana faɗaɗa waje kuma an keɓe shi zuwa sararin samaniyar cathode mold, kuma flange preform tsakanin cathode mold da jakar iska an haɗa shi kuma an warke.

Abũbuwan amfãni: fadada jakar iska na iya sa resin ya kwarara zuwa ɓangaren preform wanda ba a ciki ba, tabbatar da cewa preform yana da kyau ta hanyar resin; za a iya daidaita abun ciki na resin ta matsa lamba na jakar iska; matsin lamba da jakar iska ta yi amfani da ita zuwa saman ciki na flange, kuma flange bayan warkewa yana da ƙarancin porosity da kyawawan kayan injin. Gabaɗaya magana, bayan shiryaFRPflange tare da hanyar gyare-gyaren da ke sama, yanayin waje na flange ya kamata kuma a sarrafa shi bisa ga buƙatun amfani da juyawa da hakowa ta cikin ramukan kewaye da kewayen flange.