ABS
Kuita kweABS
ABS inoumbwa nematatu emakemikari monomers acrylonitrile, butadiene uye styrene. Kubva pakuona kwe morphology, ABS chinhu chisiri chekristaro, chine simba remuchina uye yakanaka "yakasimba, yakaoma, simbi" yakazara kuita. Iyo amorphous polymer, ABS ipurasitiki yeinjiniya yakawanda, yakasiyana-siyana, kushandiswa kwakakura, inozivikanwawo se "general plastic", ABS iri nyore kutora unyoro, giravhiti chaiyo 1.05g/cm3 (inorema zvishoma kudarika mvura), kuderera kwemvura. chiyero (0.60%), saizi yakagadzikana, nyore kuumba kugadzirisa.
Hunhu hweABS hunonyanya kutsamira pachiyero chevatatu monomers uye chimiro chemolecular yezvikamu zviviri izvi. Izvi zvinobvumira kushanduka kukuru mukugadzirwa kwechigadzirwa, uye nekudaro inogadzira mazana emhando dzakasiyana dzeABS zvinhu pamusika. Izvi zvakasiyana-siyana zvemhando zvinhu zvinopa maitiro akasiyana, akadai sepakati kusvika kune yakakwira kukanganisa kuramba, yakaderera kusvika kumusoro kupedzisa uye yakakwirira tembiricha yekukanganisa maitiro. ABS zvinhu zvine yakanakisa machinability, maitiro ekutaridzika, yakaderera inokambaira, yakanakisa dimensional kugadzikana uye yakakwirira simba simba.
ABS yakareruka yero granular kana bead opaque resin, isiri-chepfu, isingaravike, kunyura kwemvura yakaderera, ine yakanaka yakazara yemuviri uye michina zvimiro, senge yakanakisa magetsi emagetsi, kupfeka kuramba, kugadzikana kwedimensional, makemikari kuramba uye kupenya kwepasi, uye nyore kugadzirisa. uye fomu. Zvakaipa kupikisa kwemamiriro ekunze, kupisa kwekushisa hakuna kunaka, uye kunopisa.
Maitiro maitiro eABS
ABS ine yakakwirira hygroscopiness uye humidity senitivity. Inofanira kuomeswa zvakakwana uye preheated isati yaumba uye kugadzirisa (kuomesa pa80 ~ 90C kwemaawa maviri), uye hunyoro hunodzorwa pasi pe0.03%.
Iyo yakanyunguduka viscosity yeABS resin hainyanyi kunzwa tembiricha (yakasiyana nemamwe amorphous resins). Kunyangwe tembiricha yejekiseni yeABS yakakwira zvishoma pane iyo yePS, haigone kuve neyakakura yekudziya mhando sePS. Iyo viscosity yeABS haigone kuderedzwa nekudziya kwemapofu. Iyo liquidity yeABS inogona kuvandudzwa nekuwedzera kumhanya kwe screw kana jekiseni pressure. General kugadzirisa tembiricha mu190-235 ℃ yakakodzera.
Iyo inonyunguduka viscosity yeABS iri pakati, yakakwirira kupfuura iyo yePS, HIPS uye AS, uye yakakwirira jekiseni pressure (500-1000 bar) inodiwa.
ABS zvinhu zvine yepakati uye yakakwira jekiseni kumhanya zvine maitiro ari nani. (kunze kwekunge chimiro chakaoma uye zvikamu zvitete-madziro zvinoda chiyero chepamusoro chejekiseni), chigadzirwa chiri nyore kugadzira mitsetse yegesi pamuromo.
ABS yekuumba tembiricha yakakwira, tembiricha yayo yekuumbwa inowanzogadziriswa pa25-70 ℃. Paunenge uchigadzira zvigadzirwa zvakakura, iyo yakagadziriswa mold (kumberi mold) tembiricha inowanzokwira zvishoma pane inofamba mold (kumashure mold) inenge 5 ℃ yakakodzera. (Kupisa kwe mold kuchakanganisa kupera kwezvikamu zvepurasitiki, tembiricha yakadzika inotungamira pakudzika kupera)
ABS haifanire kugara mugomba rekushisa kwepamusoro kwenguva yakareba (pasi pemaminetsi makumi matatu), kana zvisina kudaro zviri nyore kuora uye yero.
Yakajairika application range
Motokari (zviridzwa zvezviridzwa, magonhi ezvishandiso zvinovharirwa, zvivharo zvemavhiri, mabhokisi ekuratidzira, nezvimwewo), mafiriji, maturusi anesimba guru (zviya zvekuomesa bvudzi, musanganisi, magadzirirwo echikafu, anocheka uswa, nezvimwewo), makaseji enhare, tapureta kiyibhodhi, mota dzekutandarira dzakadai. sengoro dzegorofu uye jet sledges uye zvichingodaro.
PMMA
Kuita kwePMMA
PMMA is amorphous polymer, inowanzozivikanwa seplexiglass. Kujeka kwakanakisa, kunaka kwekupisa kupisa (thermal deformation tembiricha ye98 ℃), ine yakanaka maitiro ekupikisa hunhu, zvigadzirwa zvayo zvepakati mechanical simba, yakaderera pamusoro kuoma, nyore kukweshwa nezvinhu zvakaoma uye kusiya zvisaririra, zvichienzaniswa nePS, hazvisi nyore mutswe, iwo chaiwo giravhiti ye1.18g/cm3. PMMA ine yakanakisa optical zvivakwa uye mamiriro ekunze kuramba. Kupinda kwechiedza chena kwakakwira se92%. PMMA zvigadzirwa zvine yakaderera birefringence, kunyanya yakakodzera kugadzirwa kwevhidhiyo discs. PMMA ine kamuri tembiricha inokwira maitiro. Nekuwedzera kwemutoro uye nguva, kuputika kunetseka kunogona kukonzerwa.
Maitiro maitiro eABS
PMMA kugadzirisa zvinodiwa zvakanyanya kuomarara, inonzwa zvakanyanya kumvura uye tembiricha, isati yagadziriswa kuti iome zvakazara (inokurudzirwa kuomeswa mamiriro e90 ℃, 2 kusvika 4 maawa), kunyunguduka kwayo kwakakura, inoda kuumbwa pakakwirira (225). -245 ℃) uye kumanikidza, kufa tembiricha mu65-80 ℃ kuri nani. PMMA haina kugadzikana zvakanyanya, uye kuderedzwa kunogona kukonzerwa nekupisa kwakanyanya kana kugara kwenguva refu pakupisa kwakanyanya. Iyo screw speed haifanirwe kunge yakakura (60% kana zvakadaro), gobvu PMMA zvikamu zviri nyore kuoneka "cavity", inoda kutora gedhi hombe, "yakaderera tembiricha, tembiricha yekufa, inononoka" jekiseni nzira yekugadzirisa.
Yakajairika application range
Indasitiri yemotokari (chiratidzo chemwenje wemwenje, dhizaini uye zvichingodaro), indasitiri yemishonga (mudziyo wekuchengetera ropa uye zvichingodaro), kushandiswa kwemaindasitiri (vhidhiyo disc, light scatterer), zvinhu zvevatengi (zvinwiwa makapu, stationery zvichingodaro).
Nguva yekutumira: 23-11-22