Tare da haɓaka 5G, na'urar bushewa ta shiga cikin tsararraki masu zuwa, kuma buƙatun na'urar busar da gashi kuma yana ƙaruwa.Fiberglass ƙarfafa nailan (PA) a hankali ya zama kayan tauraro don kayan busar gashi da kayan sa hannu don ƙarni na gaba na na'urar busar da gashi.
Fiberglass ƙarfafa PA66 yawanci ana amfani dashi a cikin nozzles na masu busassun gashi masu inganci, wanda zai iya ƙara ƙarfi da haɓaka ƙarfin zafi.Duk da haka, yayin da buƙatun aikin na'urar busar gashi ya zama mafi girma kuma mafi girma, ABS, wanda shine ainihin ainihin kayan harsashi, an maye gurbin shi da fiberglass ƙarfafa PA66.
A halin yanzu, manyan abubuwan da suka shafi shirye-shiryen fiberglass mai girma da aka ƙarfafa abubuwan haɗin gwiwa na PA66 sun haɗa da tsayin igiyoyin yankakken fiberglass na PA, jiyya na saman fiberglass yankakken strands don PA da tsayin riƙe su a cikin matrix.
Sa'an nan kuma bari mu dubi abubuwan samar da fiber gilashin da aka ƙarfafa PA66~
tsawonPA fiberglass yankakken strands
Lokacin da aka ƙarfafa fiber gilashin, tsayin yankakken yankakken PA yana ɗaya daga cikin manyan abubuwan da ke ƙayyade abubuwan da aka ƙarfafa fiber.A cikin talakawa gajeren fiberglass ƙarfafa thermoplastics, da fiber tsawon ne kawai (0.2 ~ 0.6) mm, don haka lokacin da abu ya lalace da karfi, da ƙarfi ne m m saboda da gajeren fiber tsawon, da kuma manufar yin amfani da fiberglass karfafa nailan (PA). ) yana amfani da babban ƙarfi da ƙarfin fiber don inganta kayan aikin nailan, don haka tsawon fiber yana taka muhimmiyar rawa a cikin kayan aikin injiniya na samfur.Idan aka kwatanta da gajeren gilashin fiber ƙarfafa hanyar, modules, ƙarfi, creep juriya, gajiya juriya, tasiri juriya, zafi juriya da juriya na dogon gilashin fiber ƙarfafa nailan an inganta, fadada aikace-aikace a cikin motoci, lantarki kayan, inji da kuma soja. .
Surface jiyya nafiberglass yankakken strands don PA
Ƙarfin haɗin kai tsakanin fiberglass da matrix wani muhimmin al'amari ne da ke shafar kaddarorin injiniyoyi.Fiberglass ƙarfafa polymers na iya yin aiki da kyau kawai idan sun samar da ingantaccen haɗin fuska.Don gilashin fiber ƙarfafa resin thermosetting ko polar thermoplastic resin composite kayan, za a iya bi da saman fiberglass tare da wakili mai haɗawa don samar da haɗin sinadarai tsakanin guduro da saman fiberglass, don samun ingantaccen haɗin kai tsakanin fuska.
Tsawon TsawonFiberglasa cikin Nylon Matrix
Mutane sun gudanar da bincike mai yawa akan haɗakar fiberglass ƙarfafa resin thermoplastic da tsarin gyare-gyaren samfuran.An gano cewa tsayin yankakken fiberglass a cikin samfurin koyaushe yana iyakance zuwa ƙasa da 1mm, wanda ya ragu sosai idan aka kwatanta da tsayin fiber na farko.Bayan haka, an yi nazari kan al’amuran da ke faruwa na karya fiber a lokacin sarrafawa, kuma an gano cewa yanayin sarrafa fiber da wasu abubuwa daban-daban na da tasiri wajen karyewar fiber.
kayan aiki factor
A cikin zane na dunƙule da bututun ƙarfe, ya zama dole don kauce wa kunkuntar da yawa da canji kwatsam a cikin tsari.Idan tashar kwararar ta kasance mai kunkuntar, zai shafi motsi na fiber gilashin kyauta, wanda zai haifar da tasirin raguwa kuma ya haifar da raguwa;idan an sami canji kwatsam a cikin tsari, yana da sauƙin samar da ƙarin ƙarfin damuwa yana lalatar dafiberglass.
Tsarin tsari
1. Ganga zafin jiki
Matsakaicin zafin jiki da ake amfani da shi lokacin sarrafa ƙurar da aka ƙarfafa ya kamata ya kasance sama da 280 ° C. Wannan shi ne saboda, lokacin da zafin jiki ya fi girma, danko na narkewa zai ragu sosai, don haka ƙarfin da ke aiki akan fiber ya ragu sosai.Kuma karyar fiberglass yafi faruwa a sashin narkewa na extruder.saboda fiber gilashin an ƙara shi zuwa polymer ɗin da aka narke, ana haɗe narke tare da fiber na gilashi don nannade fiber gilashin, wanda ke taka rawar mai da kariya.Wannan yana rage yawan karyewar fiber da lalacewa na sukurori da ganga, kuma yana sauƙaƙe watsawa da rarraba filayen gilashi a cikin narkewa.
2. Mold zafin jiki
Tsarin gazawar fiberglass a cikin ƙirar shine galibi cewa zafin jiki na ƙirar ya fi ƙasa da narke.Bayan narkewar ya shiga cikin rami, an kafa daskararre Layer akan bangon ciki nan da nan, kuma tare da ci gaba da sanyaya narke, an kafa daskararre Layer.Kauri daga cikin fiberglass yana ci gaba da karuwa, ta yadda matsakaicin matsakaicin kyauta mai gudana ya zama karami da karami, kuma wani ɓangare na fiber gilashin a cikin narke yana manne da daskararre Layer kuma ɗayan ƙarshen har yanzu yana gudana tare da narke, don haka samar da babban girma. karfi akan fiberglass wanda ke haifar da karyewa.Kauri daga cikin daskararre ko girman nau'in da ke gudana kyauta zai shafi kai tsaye da kwararar narke da kuma girman ƙarfin ƙarfi, wanda hakan yana rinjayar girman lalacewar fiberglass.Kauri daga cikin daskararre Layer na farko yana ƙaruwa sannan ya ragu tare da nisa daga ƙofar.Kawai a tsakiyar, daskararre Layer kauri yana ƙaruwa tare da lokaci.Don haka a ƙarshen rami, tsayin fiber zai dawo zuwa matakin da ya fi tsayi.
3. Tasirin saurin dunƙulewa akanfiberglasstsayi
Haɓakawa da saurin juzu'i zai haifar da kai tsaye zuwa haɓakar ƙarfin juzu'i da ke aiki akan fiberglass.A gefe guda kuma, haɓakar saurin gudu na iya hanzarta aiwatar da aikin filastik na polymer, rage dankon narkewa, da rage danniya da ke aiki akan fiber.Wannan saboda dunƙule tagwaye yana ba da mafi yawan ƙarfin da ake buƙata don narkewa.Sabili da haka, tasirin saurin dunƙule akan tsayin fiber yana da bangarori biyu masu gaba da juna.
4. Matsayi da hanyar ƙara gilashin gilashi
Lokacin da aka narkar da polymer kuma an fitar da shi, ana ƙara shi gaba ɗaya a tashar ciyarwa ta farko bayan haɗuwa daidai.Duk da haka, a cikin aiwatar da narke extrusion na fiberglass ƙarfafa nailan (PA), da polymer bukatar a kara a farkon ciyar da tashar jiragen ruwa, kuma za a narke da kuma roba.Bayan haka, ana ƙara yankakken fiberglass na PA a tashar ciyarwa ta ƙasa, wato, an karɓi ciyarwar ta gaba.Wannan shi ne saboda idan an ƙara fiberglass da polymer mai ƙarfi daga tashar ciyarwa ta farko, fiberglass ɗin za ta lalace sosai yayin aikin isar da ƙarfi, kuma saman ciki na dunƙule da injin kuma za su kasance cikin hulɗa kai tsaye tare da fiberlass, yana haifar da lalacewa. tsanani lalacewa da tsagewar kayan aiki.
Lokacin aikawa: Maris 23-2022