Twin-screw extruders ndiwo michina inobata mumunda wekubatanidza, uye kuita kwavo kwepamusoro uye kugona kwavo ndiko kwakanakira chinzvimbo chavo. Inogona kusanganisa ekuwedzera akasiyana uye mafirita kuti awane akasiyana pellet maumbirwo uye zvivakwa zvine maitiro akasiyana.
Nepo akasiyana-siyana ekuwedzera uye mafirita anogona kugadziriswa kuti awedzere, dzimwe nzira dzekuwana zvigadzirwa izvi zvinogona zvakare kutungamira kune kusvibiswa nyaya uye kuderera kuyerera kana kuderera kudzvinyirira munzvimbo dzakawanda mubhari.
Mukuenderera mberi senge extrusion, kusvibiswa kunogona kuve nemhedzisiro yakaipa. Kuchenesa mu extrusion kunowanzova kwakaoma kupfuura mamwe maitiro, uye mapatya-screw extruders anotarisana nematambudziko makuru nokuti hurongwa hwakaoma kupfuura imwe-screw extruder.
Kutanga, ngatitarisei nzira dzekuchenesa dzemapatya-screw extruders.
Nzira yekuchenesa resin:
Kushandisa polyester resin kana epoxy resin yekuchenesa inowanzo shandiswa kuchenesa michina mitsva kana mushure mekunge extruder yashandiswa kwenguva yakati rebei, nekuti zvimwe zvinhu zvinoramba zviri pascrew kana mbiya uye gel, iyo extrusion yekumhanyisa inodzika pasi, uye ruvara. musiyano wekuchinja kwemavara siyana yakakura. Iyi nzira inogona kushandiswa. Nhasi, nehupfumi hwakanyanya kugadzirwa, hapana kushomeka kweakasiyana screw cleaners (screw cleaning materials) pamusika, mazhinji acho anodhura uye ane mhedzisiro dzakasiyana.
Kunyangwe kushandisa zvicheneso zvekutengesa zvinoenderana nevagadziri vakasiyana uye mamiriro ekugadzira; Makambani ekugadzira epurasitiki anogona zvakare kushandisa maresheni akasiyana se screw yekuchenesa zvinhu zvinoenderana neavo ekugadzira mamiriro, ayo anogona kuchengetedza mari yakawanda yeyuniti.
Nhanho yekutanga pakuchenesa screw ndeye kudzima plug yekudya, ndiko kuti, kuvhara chiteshi chekudya pazasi pe hopper; wobva wadzikisa screw speed kusvika 15-25r/min uye chengetedza iyi spidhi kusvika kunyungudika kuyerera kumberi kwekufa kunomira kuyerera. Tembiricha yenzvimbo dzese dzekudziya dzedhiramu inofanira kuiswa pa200 ° C. Kana dhiramu rasvika tembiricha iyi, tanga kuchenesa nekukasira.
Zvichienderana neiyo extrusion maitiro (zvingave zvakakosha kubvisa iyo kufa kuderedza njodzi yekunyanyisa kudzvanya kumberi kweiyo extruder), kuchenesa kunofanirwa kuitwa nemunhu mumwechete: anoshanda anotarisa screw kumhanya uye torque kubva pane control panel. , uye inocherekedza extrusion pressure kuti ive nechokwadi chekuti system pressure haina kunyanya kukwira. Munguva yese yekuita, screw speed inofanira kuchengetwa mukati me20r / min. Mukushandiswa kwema-low-pressure die heads, usabvisa musoro wekufa kuti ucheneswe kutanga. Mira uye bvisa musoro wekufa nekukurumidza kana iyo extrudate yashandurwa zvachose kubva pakugadzirisa resin kuenda kukuchenesa resin, uye wozotangazve screw (kumhanya mukati me10r / min) kubvumira yakasara yekuchenesa resin kubuda kunze.
Disassembly gwara:
1. Pamaune wedzera zvinhu zvekugezesa kubva pachiteshi chekuburitsa kusvikira ruvara rweiyo extruded material strip yakafanana neiyo yewashing material pellets, rega kudyisa, bvisa zvinhu, uye kumisa kutenderera kwetwin-screw extruder screw;
2. Vhura screw extruder kufa musoro uye tanga kuchenesa;
3. Shandura siruuru yekukurisa uye bvisa ndiro kuti ubudise zvinhu zvasara zvekugezesa mudhiramu uye kuchenesa ndiro;
4. Mira uye dhonza sikuruu kuti uone kana yacheneswa, uye nemaoko bvisa zvakasara pasiruu. Reinstall screw; wedzera zvinhu zvitsva kutsvaira zvakasara zvekugezesa mudhiramu uye kumisa screw kutenderera;
- Isa iyo orifice plate uye kufa musoro wetwin-screw extruder kuti upedze kuchenesa kweiyo twin-screw extruder.
Nzira yekuchenesa moto yakabikwa:
Kushandisa moto kana kugocha kubvisa purasitiki yakagadzikwa pascuru ndiyo nzira yakajairika uye inoshanda yezvikamu zvekugadzira epurasitiki. Shandisa blowtorch kuchenesa screw pakarepo mushure mekushandisa, nekuti panguva ino screw inotakura kupisa kubva pachiitiko chekugadzirisa, saka screw Kugovera kupisa kuchiri yunifomu. Asi usamboshandisa murazvo weacetylene kuchenesa screw. Tembiricha yemurazvo weacetylene inogona kusvika 3000°C. Kushandisa murazvo weacetylene kuchenesa screw hakungoparadze simbi ye screw, asiwo zvakanyanya kukanganisa kushivirira kwemagetsi kwe screw.
Kana murazvo weacetylene ukashanduka kuita ruvara rwebhuruu runoramba uchibika kana uchibika chimwe chikamu che screw, zvinoreva kuti chimiro chesimbi chechikamu ichi che screw chachinja, izvo zvinozotungamira mukudzikiswa kwekupfeka kwechikamu ichi, uye kunyangwe. kuitika kweabrasion pakati pe-anti-wear layer uye matrix. Metal peeling. Pamusoro pezvo, kupisa kwenzvimbo nemurazvo weacetylene kunokonzeresa kupisa kune rimwe divi re screw, zvichiita kuti screw ikotame. Mazhinji screws akagadzirwa ne4140.HT simbi uye ane yakasimba kwazvo kushivirira, kazhinji mukati me0.03mm.
Iko kutwasanuka kwe screw kazhinji mukati me 0.01mm. Kana iyo screw yakabikwa uye yakatonhodzwa neacetylene murazvo, zvinowanzonetsa kudzokera kune yekutanga kutwasanuka. Nzira chaiyo uye inoshanda: Shandisa blowtorch kuchenesa screw nekukurumidza mushure mekushandisa. Nekuti screw inotakura kupisa kubva pakugadziriswa panguva ino, kugovera kwekupisa kwescrew kuchiri yunifomu.
Nzira yekugeza mvura:
Screw washing: Iyo yakazara otomatiki screw yekuwachisa inoshandisa kinetic simba rekutenderera kwemvura uye kuita kwesimba rekutenderera kwescrew kuti iwane 360-degree kubvisa pasina makona akafa. Iine kushanda kwepamusoro uye haikuvadzi chimiro chemuviri che screw. Inoona tekinoroji nyowani yekuchenesa screw nenzira ine hushamwari, inoshanda uye inochengetedza simba. Inokodzera kubviswa kwekumanikidza uye kubviswa kwezvinhu zvakasiyana-siyana zvepolymer, saka igirini yekugadzirisa tekinoroji ine yakanaka yekuchenesa maitiro.
Nguva yekutumira: Jun-07-2024