Ana haɗa kayan haɗin gwiwa tare da zare masu ƙarfafawa da kayan filastik. Matsayin resin a cikin kayan haɗin gwiwa yana da matuƙar muhimmanci. Zaɓin resin yana ƙayyade jerin sigogin tsari na halaye, wasu halaye na injiniya da aiki (halayen zafi, ƙarfin ƙonewa, juriya ga muhalli, da sauransu), halayen resin suma muhimmin abu ne wajen fahimtar halayen injiniya na kayan haɗin gwiwa. Lokacin da aka zaɓi resin, taga da ke ƙayyade kewayon ayyuka da halayen haɗin gwiwa ana tantance shi ta atomatik. Resin thermosetting nau'in resin ne da ake amfani da shi akai-akai don haɗin resin matrix saboda kyakkyawan ƙera shi. Resin thermoset kusan ruwa ne kawai ko rabin ƙarfi a zafin ɗaki, kuma a ra'ayi sun fi kama da monomers waɗanda ke samar da resin thermoplastic fiye da resin thermoplastic a yanayin ƙarshe. Kafin a warke resin thermosetting, ana iya sarrafa su zuwa siffofi daban-daban, amma da zarar an warke ta amfani da wakilai masu warkarwa, masu farawa ko zafi, ba za a iya sake siffanta su ba saboda ana ƙirƙirar haɗin sinadarai yayin warkarwa, yana sa ƙananan ƙwayoyin cuta su canza zuwa polymers masu ƙarfi masu girma uku tare da manyan nauyin kwayoyin halitta.
Akwai nau'ikan resin thermosetting da yawa, waɗanda aka fi amfani da su sune resin phenolic,resin epoxy, resin bis-doki, resin vinyl, resins na phenolic, da sauransu.
(1) Resin phenolic resin thermosetting ne na farko wanda ke da kyakkyawan mannewa, kyakkyawan juriya ga zafi da kuma halayen dielectric bayan an warke, kuma fasalulluka masu ban mamaki sune kyawawan halayen hana harshen wuta, ƙarancin fitar da zafi, ƙarancin yawan hayaki, da ƙonewa. Iskar da aka saki ba ta da guba sosai. Ikon sarrafawa yana da kyau, kuma ana iya ƙera abubuwan haɗin ta hanyar ƙera su, naɗewa, shimfiɗa hannu, feshi, da kuma hanyoyin pultrusion. Ana amfani da adadi mai yawa na kayan haɗin phenolic da aka yi amfani da su a cikin kayan ado na ciki na jiragen sama na farar hula.
(2)Resin Epoxymatrix ne na farko da ake amfani da shi a cikin tsarin jiragen sama. Yana da nau'ikan kayayyaki iri-iri. Ma'aikatan warkarwa da masu hanzartawa daban-daban na iya samun kewayon zafin jiki mai warkarwa daga zafin ɗaki zuwa 180 ℃; yana da kyawawan halaye na injiniya; Kyakkyawan nau'in daidaitawa na zare; juriya ga zafi da danshi; kyakkyawan tauri; kyakkyawan iyawar kerawa (kyakkyawan rufewa, matsakaicin danko na resin, kyakkyawan ruwa, matsakaicin matsin lamba, da sauransu); ya dace da ƙera manyan abubuwan haɗin gwiwa; mai arha. Kyakkyawan tsarin ƙera da kuma kyakkyawan tauri na resin epoxy yana sa ya mamaye matsayi mai mahimmanci a cikin matrix na resin na kayan haɗin gwiwa na zamani.
(3)Resin vinylAn san shi a matsayin ɗaya daga cikin kyawawan resins masu jure tsatsa. Yana iya jure yawancin acid, alkalis, maganin gishiri da kuma ƙarfi na abubuwan narkewa. Ana amfani da shi sosai a cikin yin takarda, masana'antar sinadarai, kayan lantarki, man fetur, ajiya da sufuri, kariyar muhalli, jiragen ruwa, Masana'antar Hasken Mota. Yana da halayen polyester mara cika da resin epoxy, don haka yana da kyawawan halayen injiniya na resin epoxy da kuma kyakkyawan aikin aikin polyester mara cika. Baya ga kyakkyawan juriya na tsatsa, wannan nau'in resin kuma yana da kyakkyawan juriya na zafi. Ya haɗa da nau'in yau da kullun, nau'in zafin jiki mai yawa, nau'in hana ƙonewa, nau'in juriyar tasiri da sauran nau'ikan. Amfani da resin vinyl a cikin filastik mai ƙarfafa zare (FRP) galibi ya dogara ne akan tanadin hannu, musamman a aikace-aikacen hana tsatsa. Tare da haɓaka SMC, aikace-aikacensa a wannan batun kuma abin lura ne sosai.
(4) An ƙera resin bismaleemide da aka gyara (wanda ake kira resin bismaleemide) don biyan buƙatun sabbin jiragen yaƙi don matrix na resin composite. Waɗannan buƙatun sun haɗa da: manyan sassa da bayanan rikitarwa a zafin 130 ℃. Gina abubuwan haɗin, da sauransu. Idan aka kwatanta da resin epoxy, resin Shuangma galibi yana da alaƙa da kyakkyawan danshi da juriyar zafi da zafin aiki mai yawa; rashin amfani shine cewa kerawa bai yi kyau kamar resin epoxy ba, kuma zafin warkarwa yana da yawa (yana warkewa sama da 185 ℃), kuma yana buƙatar zafin 200 ℃. Ko kuma na dogon lokaci a zafin da ya wuce 200 ℃.
(5) Cyanide (qing diacoustic) ester resin yana da ƙarancin dielectric constant (2.8~3.2) da kuma ƙaramin tangent na dielectric loss (0.002~0.008), zafin canjin gilashi mai yawa (240~290℃), ƙarancin raguwa, ƙarancin sha danshi, kyawawan halaye na injiniya da halayen haɗin kai, da sauransu, kuma yana da fasahar sarrafawa iri ɗaya da epoxy resin.
A halin yanzu, ana amfani da resin cyanate a fannoni uku: allunan da'ira da aka buga don kayan aiki masu saurin dijital da na zamani, kayan aiki masu saurin watsa raƙuman ruwa da kayan aiki masu ƙarfin aiki don sararin samaniya.
A taƙaice, resin epoxy, aikin resin epoxy ba wai kawai yana da alaƙa da yanayin haɗakarwa ba, har ma ya dogara ne akan tsarin kwayoyin halitta. Rukunin glycidyl a cikin resin epoxy wani yanki ne mai sassauƙa, wanda zai iya rage danko na resin da inganta aikin aiwatarwa, amma a lokaci guda yana rage juriyar zafi na resin da aka warke. Manyan hanyoyin inganta halayen zafi da na inji na resin epoxy da aka warke sune ƙarancin nauyin kwayoyin halitta da kuma aiki da yawa don ƙara yawan haɗin gwiwa da kuma gabatar da tsarin tauri. Tabbas, gabatar da tsari mai tauri yana haifar da raguwar narkewa da ƙaruwar danko, wanda ke haifar da raguwar aikin aikin resin epoxy. Yadda ake inganta juriyar zafin jiki na tsarin resin epoxy muhimmin al'amari ne. Daga mahangar resin da wakili mai warkarwa, ƙarin ƙungiyoyi masu aiki, mafi girman yawan haɗin gwiwa. Mafi girman aikin Tg. Musamman: Yi amfani da resin epoxy mai aiki da yawa ko wakili mai warkarwa, yi amfani da resin epoxy mai tsarki. Hanyar da aka saba amfani da ita ita ce a ƙara wani kaso na resin epoxy o-methyl acetaldehyde a cikin tsarin warkarwa, wanda ke da kyakkyawan tasiri da ƙarancin farashi. Girman matsakaicin nauyin kwayoyin halitta, haka rarraba nauyin kwayoyin halitta ke raguwa, kuma mafi girman Tg. Aiki na musamman: Yi amfani da resin epoxy mai aiki da yawa ko wakili mai warkarwa ko wasu hanyoyi tare da rarraba nauyin kwayoyin halitta iri ɗaya.
A matsayin matrix mai aiki mai yawa wanda ake amfani da shi azaman matrix mai haɗaka, halaye daban-daban nasa, kamar iya sarrafawa, halayen thermophysical da halayen injiniya, dole ne su cika buƙatun aikace-aikacen aiki. Kera matrix na resin ya haɗa da narkewa a cikin abubuwan narkewa, narkewar danko (ruwa) da canje-canjen danko, da canjin lokacin gel tare da zafin jiki (tagar tsari). Tsarin hada resin da zaɓin zafin amsawa yana ƙayyade motsin amsawar sinadarai (ƙimar warkarwa), halayen rheological na sinadarai (zafin jiki-danko idan aka kwatanta da lokaci), da kuma thermodynamics na amsawar sinadarai (exothermic). Tsarin aiki daban-daban suna da buƙatu daban-daban don danko resin. Gabaɗaya, don tsarin naɗewa, danko resin gabaɗaya yana kusa da 500cPs; don tsarin pultrusion, danko resin yana kusa da 800~1200cPs; don tsarin gabatarwar injin, danko resin gabaɗaya yana kusa da 300cPs, kuma tsarin RTM na iya zama mafi girma, amma gabaɗaya, ba zai wuce 800cPs ba; Don tsarin prepreg, ana buƙatar ɗanɗano ya zama mai girma, gabaɗaya kusan 30000 ~ 50000cPs. Tabbas, waɗannan buƙatun ɗanɗano suna da alaƙa da halayen aikin, kayan aiki da kayan kansu, kuma ba su da tsayayye. Gabaɗaya, yayin da zafin jiki ke ƙaruwa, ɗanɗano na resin yana raguwa a cikin ƙananan kewayon zafin jiki; duk da haka, yayin da zafin jiki ke ƙaruwa, amsawar warkarwa na resin kuma yana ci gaba, a zahiri, zafin jiki Yawan amsawa yana ninka sau biyu ga kowane ƙaruwa na 10℃, kuma wannan kimantawa har yanzu yana da amfani don kimanta lokacin da ɗanɗano na tsarin resin mai amsawa ya ƙaru zuwa wani mahimmin matsayi na ɗanɗano. Misali, yana ɗaukar mintuna 50 don tsarin resin mai ɗanɗano na 200cPs a 100℃ don ƙara ɗanɗano zuwa 1000cPs, to lokacin da ake buƙata don tsarin resin iri ɗaya don ƙara ɗanɗano na farko daga ƙasa da 200cPs zuwa 1000cPs a 110℃ shine kimanin mintuna 25. Zaɓin sigogin tsari yakamata yayi la'akari da cikakken ɗanɗano da lokacin gel. Misali, a cikin tsarin shigar da injin tsotsa, ya zama dole a tabbatar da cewa danko a zafin aiki yana cikin kewayon danko da tsarin ke buƙata, kuma tsawon lokacin tukunyar resin a wannan zafin dole ne ya isa ya tabbatar da cewa za a iya shigo da resin. A taƙaice, zaɓin nau'in resin a cikin tsarin allurar dole ne ya yi la'akari da wurin gel, lokacin cikawa da zafin kayan. Sauran hanyoyin suna da irin wannan yanayi.
A cikin tsarin ƙera, girma da siffar ɓangaren (mold), nau'in ƙarfafawa, da sigogin tsari suna ƙayyade ƙimar canja wurin zafi da tsarin canja wurin taro na tsarin. Resin yana warkar da zafi na waje, wanda ake samarwa ta hanyar ƙirƙirar haɗin sinadarai. Yawancin haɗin sinadarai da aka samar a kowace ƙarar naúrar a kowane lokaci, ƙarin kuzari ana saki. Haɗaɗɗun canja wurin zafi na resins da polymers ɗinsu gabaɗaya suna da ƙasa sosai. Yawan cire zafi yayin polymerization ba zai iya daidaita ƙimar samar da zafi ba. Waɗannan adadin zafi da ke ƙaruwa suna sa halayen sinadarai su ci gaba da sauri, wanda ke haifar da ƙari. Wannan amsawar da ke hanzarta kai tsaye zai haifar da gazawar damuwa ko lalacewar ɓangaren. Wannan ya fi bayyana a cikin kera sassan haɗakar kauri mai yawa, kuma yana da mahimmanci musamman a inganta hanyar tsarin warkarwa. Matsalar "overshoot na zafin jiki" na gida wanda babban ƙimar exothermic na prepreg curing ya haifar, da bambancin yanayi (kamar bambancin zafin jiki) tsakanin taga tsari na duniya da taga tsari na gida duk saboda yadda ake sarrafa tsarin warkarwa. "Daidaita yanayin zafi" a cikin ɓangaren (musamman a cikin alkiblar kauri na ɓangaren), don cimma "daidaitaccen yanayin zafi" ya dogara da tsarin (ko aikace-aikacen) wasu "fasahohin naúrar" a cikin "tsarin masana'antu". Ga sassa masu siriri, tunda za a wargaza zafi mai yawa zuwa cikin muhalli, zafin jiki yana ƙaruwa a hankali, kuma wani lokacin ɓangaren ba zai warke gaba ɗaya ba. A wannan lokacin, ana buƙatar amfani da zafi mai taimako don kammala haɗin haɗin gwiwa, wato, ci gaba da dumama.
Fasahar ƙirƙirar kayan haɗin kai ba ta atomatik ba ta da alaƙa da fasahar ƙirƙirar kayan haɗin kai ta gargajiya. A takaice dai, duk wata hanyar ƙirƙirar kayan haɗin kai ba ta amfani da kayan aikin autoclave ba za a iya kiranta fasahar ƙirƙirar kayan haɗin kai ba. . Zuwa yanzu, amfani da fasahar ƙirƙirar kayan haɗin kai ba ta atomatik ba a fagen sararin samaniya ya haɗa da waɗannan umarni: fasahar shirya kayan haɗin kai ba ta atomatik ba, fasahar gyaran ruwa, fasahar tsara matsi ta prepreg, fasahar gyara microwave, fasahar gyaran beam na electron, Fasahar samar da ruwa mai matsi mai daidaitawa. Daga cikin waɗannan fasahohin, fasahar shirya OoA (Outof Autoclave) ta fi kusa da tsarin ƙirƙirar kayan haɗin kai na gargajiya, kuma tana da nau'ikan shimfidawa da hannu da tushe na tsarin shimfiɗawa ta atomatik, don haka ana ɗaukarta a matsayin masana'anta mara sakawa wacce za a iya cimmawa a babban sikelin. Fasahar ƙirƙirar kayan haɗin kai. Babban dalili na amfani da kayan haɗin kai don sassan haɗin kai masu aiki shine samar da isasshen matsin lamba ga kayan haɗin kai, fiye da matsin tururin kowane iskar gas yayin warkarwa, don hana samuwar pores, kuma wannan shine OoA prepreg Babban wahalar da fasaha ke buƙatar shiga. Ko za a iya sarrafa porosity na ɓangaren a ƙarƙashin matsin lamba na injin kuma aikin sa zai iya kaiwa ga aikin laminate mai maganin autoclave muhimmin ma'auni ne don kimanta ingancin OoA prepreg da tsarin ƙera shi.
Ci gaban fasahar OoA prepreg ya fara samo asali ne daga haɓakar resin. Akwai manyan abubuwa guda uku a cikin haɓaka resins don OoA prepregs: na ɗaya shine sarrafa porosity na sassan da aka ƙera, kamar amfani da ƙarin resins da aka warkar da amsawa don rage canjin yanayi a cikin amsawar warkarwa; na biyu shine inganta aikin resins da aka warke Don cimma halayen resin da aka samar ta hanyar autoclave, gami da halayen zafi da halayen injiniya; na uku shine tabbatar da cewa prepreg yana da kyakkyawan kerawa, kamar tabbatar da cewa resin zai iya gudana ƙarƙashin matsin lamba na matsin lamba na yanayi, tabbatar da cewa yana da tsawon rai mai danko da kuma isasshen zafin jiki na ɗaki a waje, da sauransu. Masu kera kayan ƙasa suna gudanar da bincike da haɓaka kayan bisa ga takamaiman buƙatun ƙira da hanyoyin aiwatarwa. Babban umarni ya kamata ya haɗa da: inganta halayen injiniya, ƙara lokacin waje, rage zafin jiki mai warkarwa, da inganta danshi da juriyar zafi. Wasu daga cikin waɗannan haɓakawar aiki suna da sabani. , kamar babban tauri da ƙarancin zafin jiki mai warkarwa. Kuna buƙatar nemo ma'aunin daidaito kuma ku yi la'akari da shi sosai!
Baya ga haɓaka resin, hanyar kera prepreg kuma tana haɓaka haɓakar aikace-aikacen OoA prepreg. Binciken ya gano mahimmancin tashoshin vacuum na prepreg don yin laminates marasa porosity. Nazarin da suka biyo baya sun nuna cewa prepreg na semi-impregnated na iya inganta iskar gas yadda ya kamata. Ana sanya resin mai rabin-impregnated na OoA, kuma ana amfani da busassun zare a matsayin tashoshi don iskar gas mai fitarwa. Iskar gas da abubuwan da ke haifar da wargaza ɓangaren na iya zama Sun shaƙa ta hanyar tashoshi ta yadda porosity na ƙarshen ɓangaren ya kasance <1%.
Tsarin sanya jakunkunan tsotsa na injin tsabtace iska yana cikin tsarin da ba na autoclave ba (OoA). A takaice, tsarin gyaran iska ne wanda ke rufe samfurin tsakanin mold da jakar tsotsa iska, sannan ya matsa samfurin ta hanyar yin amfani da injin tsabtace iska don sanya samfurin ya zama mai tauri da inganci. Babban tsarin kera shi ne
Da farko, ana shafa wani abu mai sakin kaya ko zane mai sakin kaya a kan mold ɗin layup (ko zanen gilashi). Ana duba prepreg ɗin bisa ga ma'aunin prepreg ɗin da aka yi amfani da shi, musamman ma yawan saman, abun da ke cikin resin, abu mai canzawa da sauran bayanai na prepreg. A yanka prepreg ɗin bisa girmansa. Lokacin yankewa, a kula da alkiblar zaruruwan. Gabaɗaya, ana buƙatar karkatar da alkiblar zaruruwan ya zama ƙasa da 1°. A ƙidaya kowane ɓangaren da ke ɓoyewa kuma a rubuta lambar prepreg ɗin. Lokacin da ake shimfiɗa yadudduka, ya kamata a shimfiɗa yadudduka daidai da tsarin laying ɗin da ake buƙata akan takardar rikodin laying, kuma a haɗa fim ɗin PE ko takardar sakin kaya tare da alkiblar zaruruwan, kuma a bi kumfa na iska tare da alkiblar zaruruwan. Scraper ɗin yana shimfiɗa prepreg ɗin kuma yana goge shi gwargwadon iko don cire iska tsakanin layukan. Lokacin kwanciya, wani lokacin yana da mahimmanci a haɗa prepregs, waɗanda dole ne a haɗa su tare da alkiblar zaruruwan. A cikin tsarin haɗawa, ya kamata a cimma haɗuwa da ƙarancin haɗuwa, kuma a daidaita haɗin haɗin kowane layi. Gabaɗaya, gibin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin gwiwar. Hatimin jaka da kuma magancewa: Bukatar ƙarshe ita ce kada a iya zubar da iska. Lura: Wurin da sau da yawa iska ke kwarara shine haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin gwiwar.
Muna kuma samarwafiberglass direct roving,tabarmar fiberglass, ragar fiberglass, kumarufin fiberglass da aka saka.
Tuntube mu:
Lambar waya:+8615823184699
Lambar waya: +8602367853804
Email:marketing@frp-cqdj.com
Lokacin Saƙo: Mayu-23-2022
