- AS
1. Aikin AS
AS wani nau'in copolymer ne na propylene-styrene, wanda kuma ake kira SAN, mai yawan gaske na kimanin 1.07g/cm3. Ba ya fuskantar tsagewar damuwa ta ciki. Yana da haske mafi girma, yanayin zafi mai laushi da ƙarfin tasiri fiye da PS, da kuma juriyar gajiya.
2. Amfani da AS
Tire, kofuna, kayan teburi, ɗakunan firiji, maɓallan, kayan haɗi na haske, kayan ado, madubai na kayan aiki, akwatunan marufi, kayan rubutu, fitilun gas, maƙullan buroshi, da sauransu.
3. Yanayin sarrafa AS
Zafin sarrafa AS gabaɗaya yana da 210 ~ 250℃. Wannan kayan yana da sauƙin sha danshi kuma yana buƙatar a busar da shi fiye da awa ɗaya kafin a sarrafa shi. Ruwansa ya ɗan fi PS muni, don haka matsin lamba na allurar ma yana da ɗan girma, kuma zafin mold ɗin da aka sarrafa a 45 ~ 75 ℃ ya fi kyau.
- ABS
1. Aikin ABS
ABS terpolymer ne na acrylonitrile-butadiene-styrene. Polymer ne mai launin amorphous wanda yake da yawa kusan 1.05g/cm3. Yana da ƙarfin injina mai ƙarfi da kyawawan halaye na "tsaye, mai tauri da ƙarfe". ABS filastik ne na injiniya wanda ake amfani da shi sosai tare da nau'ikan iri-iri da amfani mai yawa. Ana kuma kiransa "roba na injiniya na gabaɗaya" (ana kiran MBS da ABS mai haske). Yana da sauƙin siffantawa da sarrafawa, yana da ƙarancin juriya ga sinadarai, kuma samfuran suna da sauƙin ɗauka a cikin wutar lantarki.
2. Amfani da ABS
Masu fitar da famfo, bearings, handle, bututu, casings na kayan lantarki, sassan kayan lantarki, kayan wasa, akwatunan agogo, akwatunan kayan aiki, akwatunan tankin ruwa, akwatunan ajiya na sanyi da firiji.
3. Halayen tsarin ABS
(1) ABS yana da yawan hygroscopicity da kuma rashin juriya ga zafin jiki. Dole ne a busar da shi gaba ɗaya kuma a sanyaya shi kafin a yi masa ƙera shi da kuma sarrafa shi domin ya kula da danshi da ke ƙasa da kashi 0.03%.
(2) Dankowar narkewar resin ABS ba ta da saurin kamuwa da zafin jiki (ya bambanta da sauran resins marasa tsari). Duk da cewa zafin allurar ABS ya ɗan fi na PS girma, ba shi da yanayin tashin zafin jiki mai sassauƙa kamar PS, kuma ba za a iya amfani da dumama makaho ba. Don rage dankonsa, za ku iya ƙara saurin sukurori ko ƙara matsin lamba/gudun allurar don inganta ruwansa. Zafin sarrafawa gabaɗaya shine 190~235℃.
(3) Danko na narkewar ABS matsakaici ne, ya fi na PS, HIPS, da AS girma, kuma ruwansa ya fi muni, don haka ana buƙatar ƙarin matsin lamba na allura.
(4) ABS yana da kyakkyawan tasiri tare da matsakaicin gudu zuwa matsakaiciyar allura (sai dai idan siffofi masu rikitarwa da siraran sassa suna buƙatar saurin allura mai girma), bututun samfurin yana iya fuskantar alamun iska.
(5) Zafin gyaran ABS yana da matuƙar girma, kuma yawan zafin gyaransa gabaɗaya ana daidaita shi tsakanin 45 zuwa 80°C. Lokacin samar da manyan samfura, zafin gyaran gyaran da aka gyara (mold na gaba) gabaɗaya yana da kusan 5°C sama da na mold mai motsi (mold na baya).
(6) Bai kamata ABS ya daɗe a cikin ganga mai zafi sosai ba (ya kamata ya zama ƙasa da mintuna 30), in ba haka ba zai ruɓe cikin sauƙi ya zama rawaya.
- PMMA
1. Ayyukan PMMA
PMMA wani abu ne mai kama da amorphous polymer, wanda aka fi sani da plexiglass (sub-acrylic), mai yawan kusan 1.18g/cm3. Yana da kyakkyawan haske da kuma sauƙin watsawa na haske na 92%. Kayan gani ne mai kyau; yana da kyakkyawan juriyar zafi (juriyar zafi). Zafin nakasa shine 98°C). Samfurinsa yana da matsakaicin ƙarfin injina da ƙarancin taurin saman. Yana da sauƙin gogewa ta abubuwa masu tauri kuma yana barin alamun. Idan aka kwatanta da PS, ba abu ne mai sauƙi ba a sami karyewa.
2. Amfani da PMMA
Gilashin kayan aiki, kayayyakin gani, kayan lantarki, kayan aikin likita, samfura masu haske, kayan ado, ruwan tabarau na rana, haƙoran haƙora, allunan talla, allunan agogo, fitilun bayan mota, gilashin mota, da sauransu.
3. Halayen tsari na PMMA
Bukatun sarrafawa na PMMA suna da tsauri. Yana da matukar damuwa ga danshi da zafin jiki. Dole ne a busar da shi gaba ɗaya kafin a sarrafa shi. Danko na narkewarsa yana da yawa, don haka yana buƙatar a ƙera shi a zafin jiki mafi girma (219~240℃) da matsin lamba. Zafin mold ɗin yana tsakanin 65~ 80℃ ya fi kyau. Kwanciyar zafin PMMA ba ta da kyau sosai. Za a lalata shi ta hanyar zafi mai yawa ko kuma a daɗe a zazzabi mai girma. Bai kamata saurin sukurori ya yi yawa ba (kimanin 60rpm), domin yana da sauƙin faruwa a cikin sassan PMMA masu kauri. Wannan lamari na "ɓata" yana buƙatar manyan ƙofofi da yanayin allurar "babban zafin abu, zafin mold mai yawa, da saurin jinkiri".
4. Menene acrylic (PMMA)?
Acrylic (PMMA) filastik ne mai haske, mai tauri wanda galibi ana amfani da shi maimakon gilashi a cikin kayayyaki kamar tagogi masu hana fashewa, alamun haske, fitilun sama da kuma rufin jirgin sama. PMMA yana cikin muhimmin dangin resin acrylic. Sunan sinadarai na acrylic shine polymethyl methacrylate (PMMA), wanda shine resin roba wanda aka polymered daga methyl methacrylate.
Polymethylmethacrylate (PMMA) kuma ana kiransa acrylic, acrylic glass, kuma ana samunsa a ƙarƙashin sunayen kasuwanci da samfuran kamar Crylux, Plexiglas, Acrylite, Perclax, Astariglas, Lucite, da Perspex, da sauransu. Ana amfani da Polymethylmethacrylate (PMMA) sau da yawa a cikin siffar takarda a matsayin madadin gilashi mai sauƙi ko mai hana fashewa. Hakanan ana amfani da PMMA azaman resin siminti, tawada, da shafi. PMMA ɓangare ne na ƙungiyar kayan filastik na injiniya.
5. Ta yaya ake yin acrylic?
Ana yin polymethyl methacrylate ta hanyar polymerization domin yana ɗaya daga cikin polymers na roba. Da farko, ana sanya methyl methacrylate a cikin mold ɗin kuma ana ƙara mai kara kuzari don hanzarta aikin. Saboda wannan tsarin polymerization, ana iya siffanta PMMA zuwa siffofi daban-daban kamar zanen gado, resins, tubalan, da beads. Manne na acrylic kuma yana iya taimakawa wajen laushin sassan PMMA da haɗa su wuri ɗaya.
PMMA yana da sauƙin sarrafawa ta hanyoyi daban-daban. Ana iya haɗa shi da wasu kayan don taimakawa wajen haɓaka halayensa. Tare da thermoforming, yana zama mai sassauƙa idan aka dumama shi kuma yana tauri lokacin da aka sanyaya shi. Ana iya girmansa yadda ya kamata ta amfani da yanke katako ko laser. Idan an goge shi, za ku iya cire ƙyallen daga saman kuma ku taimaka wajen kiyaye amincinsa.
6. Waɗanne nau'ikan acrylic ne daban-daban?
Manyan nau'ikan filastik guda biyu na acrylic sune acrylic da aka yi da fenti da kuma acrylic. Acrylic da aka yi da fenti ya fi tsada a samar da shi amma yana da ƙarfi, juriya, haske, kewayon thermoforming da kwanciyar hankali fiye da acrylic da aka yi da fenti. Acrylic da aka yi da fenti yana ba da juriya mai kyau ga sinadarai da dorewa, kuma yana da sauƙin launi da siffa yayin aikin ƙera shi. Hakanan ana samun acrylic da aka yi da fenti a cikin kauri iri-iri. Acrylic da aka yi da fenti ya fi acrylic da aka yi da fenti tsada kuma yana ba da acrylic mai daidaito, mai aiki fiye da acrylic da aka yi da fenti (a farashin rage ƙarfi). Acrylic da aka yi da fenti yana da sauƙin sarrafawa da injina, wanda hakan ya sa ya zama madadin zanen gilashi a aikace.
7. Me yasa ake amfani da acrylic akai-akai?
Sau da yawa ana amfani da acrylic saboda yana da halaye masu amfani iri ɗaya da gilashi, amma ba tare da matsalolin karyewa ba. Gilashin acrylic yana da kyawawan halaye na gani kuma yana da ma'aunin haske iri ɗaya kamar gilashi a cikin yanayin ƙarfi. Saboda halayensa masu hana karyewa, masu ƙira za su iya amfani da acrylics a wuraren da gilashi zai yi haɗari sosai ko kuma zai gaza (kamar periscopes na ƙarƙashin ruwa, tagogi na jirgin sama, da sauransu). Misali, nau'in gilashin da ba ya hana harsashi shine yanki mai kauri inci 1/4 na acrylic, wanda ake kira acrylic mai ƙarfi. Acrylic kuma yana aiki sosai a cikin ƙirar allura kuma ana iya ƙirƙirar shi kusan kowace siffa da mai yin ƙira zai iya ƙirƙirawa. Ƙarfin gilashin acrylic tare da sauƙin sarrafawa da injina ya sa ya zama kayan aiki mai kyau, wanda ya bayyana dalilin da yasa ake amfani da shi sosai a masana'antar mabukaci da kasuwanci.
Lokacin Saƙo: Disamba-13-2023
