ABS, inozivikanwa se acrylonitrile butadiene styrene, inoumbwa ne copolymerization yema monomers matatu e acrylonitrile-butadiene-styrene. Nekuda kwehuwandu hwakasiyana hwema monomers matatu, panogona kuva nehunhu hwakasiyana uye tembiricha yekunyunguduka, mashandiro ekufamba kweABS, kusanganiswa nemamwe mapurasitiki kana zvimwe zvinowedzera, zvinogona kuwedzera kushandiswa uye mashandiro eABS.
Kuyerera kweABS kuri pakati pePS nePC, uye kuyerera kwayo kwakabatana nekupisa kwejekiseni nekumanikidzwa, uye simba rekumanikidzwa kwejekiseni rakakura zvishoma. Nokudaro, kumanikidzwa kwakakwira kwejekiseni kunowanzo shandiswa mukuumba kuderedza kunyunguduka kwesimbi uye kuvandudza mashandiro ekuzadza mold.
1. Kugadziriswa kwepurasitiki
Mwero wekunyudzwa kweABS nemvura ungangoita 0.2%-0.8%. Kune ABS yemhando yepamusoro, inofanira kubikwa muovheni pa80-85°C kwemaawa 2-4 kana mudrying hopper pa80°C kwemaawa 1-2 isati yagadziriswa. Kune ABS isingapisi ine zvikamu zvePC, tembiricha yekuomesa inofanira kuwedzerwa zvakakodzera kusvika 100°C, uye nguva chaiyo yekuomesa inogona kutsanangurwa nemhepo inobuda.
Chikamu chezvinhu zvakadzokororwa hachifanirwe kudarika 30%, uye electroplating grade ABS haifanirwe kushandisa zvinhu zvakadzokororwa.
2. Kusarudzwa kwemuchina wekuumba jekiseni
Muchina weRamada wekugadzira jekiseni unogona kusarudzwa (hurefu hwesikuruu kusvika padhayamita 20:1, chiyero chekudzvanya chinopfuura 2, kumanikidzwa kwejekiseni kunopfuura 1500bar). Kana masterbatch yemavara ikashandiswa kana chitarisiko chechigadzirwa chakakwira, sikuruu ine dhayamita diki inogona kusarudzwa. Simba rekusunga rinoonekwa zvichienderana ne4700-6200t/m2, zvinoenderana negiredhi repurasitiki uye zvinodiwa nechigadzirwa.
3. Dhizaini yeMould negedhi
Tembiricha yeforoma inogona kuiswa pa60-65°C. Runner dhayamita 6-8mm. Upamhi hwegedhi hunenge 3mm, ukobvu hwacho hwakafanana nehwechigadzirwa, uye kureba kwegedhi kunofanira kunge kuri pasi pe1mm. Gomba rekuburitsa mweya rine upamhi hwe4-6mm uye ukobvu hwe0.025-0.05mm.
4. Tembiricha yakanyunguduka
Inogona kutsanangurwa nemazvo nenzira yekubaya mhepo. Magiredhi akasiyana ane tembiricha yakasiyana yekunyunguduka, marongero anokurudzirwa ndeaya anotevera:
Kupisa kwemhepo: 220°C-260°C, zviri nani 250°C
Giredhi reElectroplating: 250°C-275°C, zviri nani 270°C
Chiyero chisingapise kupisa: 240°C-280°C, zviri nani 265°C-270°C
Chiyero chinodzivirira moto: 200°C-240°C, zviri nani 220°C-230°C
Kuyera kwakajeka: 230°C-260°C, zviri nani 245°C
Girazi rakasimbiswa nefaibha: 230℃ -270℃
Kune zvigadzirwa zvinoda kunyungudika kwepamusoro, shandisa tembiricha yakakwira yekunyungudika uye tembiricha yemould.
5. Kumhanya kwejekiseni
Kumhanya kunonoka kunoshandiswa pamhando isingatsvi, uye kumhanya kunokurumidza kunoshandiswa pamhando isingatsvi. Kana zvinodiwa pamusoro pechigadzirwa zviri zvepamusoro, kumhanyisa kwejekiseni rekugadzira jekiseni repamusoro uye rine nhanho dzakawanda kunofanirwa kushandiswa.
6. Kumanikidzwa kwemusana
Kazhinji, kana musana wakaderera, zviri nani. Kudzvanywa kwemusana kunowanzo shandiswa i5bar, uye dhayi inoda kudzvanywa kwemusana kwakakwira kuti ruvara ruve rwakaenzana.
7. Nguva yekugara
Pakupisa kwe265°C, nguva yekugara kweABS musimbi inonyunguduka haifanirwe kudarika maminetsi mashanu kusvika matanhatu. Nguva inodzivisa moto ipfupi. Kana zvichidikanwa kumisa muchina, tembiricha yakatarwa inofanira kudzikiswa kusvika 100°C kutanga, uye ipapo silinda yepurasitiki yakanyunguduka inofanira kucheneswa neABS inoshandiswa zvakanyanya. Musanganiswa wakacheneswa unofanirwa kuiswa mumvura inotonhora kudzivirira kuora kwakawanda. Kana uchida kuchinja kubva kune mamwe mapurasitiki kuenda kuABS, unofanira kutanga wachenesa silinda yepurasitiki yakanyunguduka nePS, PMMA kana PE. Zvimwe zvigadzirwa zveABS hazvina dambudziko kana zvangoburitswa kubva mumold, asi zvinochinja ruvara mushure menguva yakati, izvo zvinogona kukonzerwa nekupisa zvakanyanya kana kuti purasitiki inogara musimbi inonyunguduka kwenguva yakareba.
8. Kugadziriswa kwezvigadzirwa mushure mekugadziriswa
Kazhinji, zvigadzirwa zveABS hazvidi kugadziriswa mushure mekugadziriswa, zvigadzirwa zvemhando ye electroplating chete ndizvo zvinofanirwa kubikwa (70-80°C, maawa 2-4) kuti zvisaparadze mavara epamusoro, uye zvigadzirwa zvinoda kuputirwa ne electroplate hazvigone kushandisa chinhu chinosunungura, uye zvigadzirwa zvinofanirwa kuputirwa nekukurumidza mushure mekunge zvabviswa.
9. Zvinhu zvinoda kutariswa zvakanyanya pakuumba
Kune mhando dzakasiyana dzeABS (kunyanya giredhi remurazvo), iyo inonyunguduka ine kunamatira kwakasimba pamusoro pesikuruu mushure mekuiswa purasitiki, uye inoora mushure menguva yakareba. Kana mamiriro ezvinhu ari pamusoro apa akaitika, zvinodikanwa kuburitsa chikamu chehomogenization yesikuruu necompressor yekupukuta, uye kuchenesa sikuruu nguva dzose nePS, nezvimwewo.
Nguva yekutumira: Nyamavhuvhu-09-2023
