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China Kuyambitsa Kwa Kapangidwe Kake Ndi Kugwiritsa Ntchito Fakitala ya New Screw ndi othandizira | Tanso

1 、 Kapangidwe kake ndi kaboolekanitsa
Kapangidwe ka danga lolekanalo limadziwika ndi kuwonjezera nthiti mu gawo losungunuka, ndikugawana poyambira poyambira m'magawo awiri, ndikupanga gawo lolimba lamadzi nthawi yopanga pulasitiki, ndikusiya zinthu zonse zolimba mu poyambira , pomwe gasi mumgulawo wolimba umatulutsidwa cham'mbuyo kuchokera kuzinthu zomwe zimayendetsedwa ndi anzawo, ndikuwonjezera kuwira kwazinthu. Malo osinthanitsa ndi kutentha pakati pa zinthu zolimba ndi khoma lamkati la cylinder kumakulitsidwa.
Pali mitundu yambiri yamitundu yopatukana. Ponena za zovuta zamakina ndi zotsatira za momwe akukhudzidwira, kukweza kwa zingwe zazikulu komanso zothandizira ndizofanana, m'lifupi mwake poyambira gawo lamadzimadzi ndi poyambira pang'onopang'ono kwa poyambira ndikungofanana. kuya kwa poyambira gawo lolimba pang'onopang'ono kumangokhala osaya, pomwe kuya kwa gawo lamagetsi kumasintha pang'onopang'ono mpaka kumapeto kwa gawo la homogenization. Kapangidwe kameneka ndi kabwino pazopangidwa ndi mawonekedwe owonekera kwambiri komanso zida zopanda mafuta. Ndipo kuthekera kwazinthu zakuthupi kumakhala kwamphamvu.
Malinga ndi mchitidwewu, magawo a gawo lopatukana ayenera kusankhidwa moyenera, kuphatikizapo kufupikitsa, kufalitsa magawo atatu ndi malo oyika m'mphepete lothandizira.
2 、 Kapangidwe kake ndi kagwiritsidwe ntchito kagawo pawiri
Kapangidwe ka chingwe cholumikizira kawiri kumadziwika ndi kuwonjezera mzere wofananira mothandizirana ndi khola la cholumikizira chimodzimodzicho, phokosolo ndi lathyathyathya, m'mphepete lothandizira ndi locheperako kuposa m'mphepete mwenimweni poyambira chimafanana ndi funde lakuyambayo la poyambira pang'onopang'ono. Mukuchita pulasitiki, osati kungometa pang'onopang'ono mphamvu za zida zomwe zili pachiwonetsero chachikulu komanso chothandizira, komanso zida zomwe zili pachiwongono chachikulu komanso chothandizira zimatha kusokonekera nthawi zonse, zomwe zikuyenera kuthandizira homogenization. Chifukwa chake, ndikotsimikiza kuti zomangira zina sizingathe kupititsa patsogolo luso la plasticizing, komanso kuwonjezera zotsatira zosakanikirana. Itha kugwiritsidwa ntchito pobayira jakisoni wa mafinya, ma pigment ndi zida zopangira thovu kuti mulandire ngakhale zinthu zina, ndipo itha kugwiritsidwanso ntchito pazotengera zomwe zimatha kutentha monga HPVC kuti ziwonjezere kufooka.

3. Ntchito ya screw extruder
Ntchito ya chowonjezera chowonjezera ndikupanga mphira kuti pang'onopang'ono ikhale kusintha kwa mzere wowongoka ndi kasinthasintha, kupita molunjika kumutu, ndikugwirizana ndi thupi, chogwirana, kupangira kutentha, kufewetsa ndikusakaniza mphira.

Chotseka cha extruder chikugwiritsidwa ntchito kwa maola 500, padzakhala zinyalala zachitsulo kapena zodetsa zina mu bokosi lamagetsi. Chifukwa chake, zidazo ziyenera kutsukidwa kuti zizibwezeretsa mafuta opaka a lebokosi lamagetsi. Pakapita nthawi, owonjezera amayenera kufufuzidwa kwathunthu kuti awone zolimba za zolakwika zonse. Ngati mphamvu yopanga extruder imadulidwa mwadzidzidzi, kuyendetsa kwakukulu ndikuwotha kumayima. Mphamvu yamagetsi ikapezanso, mphamvuzo zimatha kuyambika pokhapokha gawo lililonse la mbiya limatenthedwa kuyambira koyamba mpaka kutentha mpaka nthawi zonse. Ngati zapezeka kuti cholowera cholumikizira chodzaza ndi chodzaza, fufuzani ngati kukhudza kwa mzere wofanana wa thermocouple kuli kwabwino. Chofunda chachikulu cha extruder chimakhala ndi mfundo yopanga chinthu chimodzi: chosanja cholimba, kusungunuka, kukweza, kupukutira, kusakaniza, kuvula ndi kufinya, koma osati kokha. Pakupanga kowonjezera, mitundu yoposa iwiri ya ma polima ndi zida za extruder screw zimasintha dziko lenileni, kuphatikiza mawonekedwe, momwe masinthidwe amachitidwe, komanso ubale pakati pa osakaniza omaliza ndi ntchito. Monga cholakwika cha extruder, maubwenzi amkati mwazomwe zimachitika, kuthamanga, ntchito, kulumikizana ndi mawonekedwe ndi magwiridwe antchito panthawi yopanga zinthu kukuwonjezeranso zina.

Malinga ndi kunena kwaukadaulo woperekedwa ndi National Development and Reform Commission, zida zofunikira kwambiri zowonjezera pulasitiki zomwe zimagwiritsidwa ntchito ku China tsopano zikuphatikiza zozungulira mapasa awiri omwe amapezeka, mbali imodzi yozungulira amapasa-screw extruder komanso extruder imodzi. Mphamvu yeniyeni yazida zamitundu iyi yoposa 0.14KW / (kg. H). Mu 2011, mtengo wazotuluka zitatuzi ku China udali pafupifupi matani 70 miliyoni, ndipo kugwiritsa ntchito mphamvu kwa owonjezera kuposa kupitirira 8 biliyoni. Tekinoloje ya extruder screw imaphatikiza maubwino ogwira ntchito ndi mapangidwe a mitundu iwiri ya amapasa owerengeka omwe amapanga dziko lapansi, mwachitsanzo "mawonekedwe opindika ozungulira amapasa-screw extruder" ndi "ofanana omwe akutembenuza mapasa amapasa owonjezera". Screw extruder samangotsatira gawo lalikulu lamphamvu lanyumba yopanga yopanga yopanga mapangidwe owonjezera amapasa, komanso likukwaniritsa mawonekedwe a ofanana omwe akutembenuzira mapasa ndi screw extruder Ndi ntchito yabwino ya pulasitiki, imatha kukwaniritsa zofunika kukonza zamtundu wotsika komanso kutentha pang'ono, ndipo ali ndi mawonekedwe a kukhathamiritsa kwambiri komanso kugwiritsa ntchito mphamvu zochepa. Mtengo wotulutsa wa chowonjezera cha extruder wakhala wopitilira kawiri pachaka, ndipo mtengo wopulumutsa uli pafupi 50%. Tsopano ukadaulowu watukuka, ndipo malonda agwiritsidwa ntchito m'njira zosiyanasiyana zokongoletsa pulasitiki, kuphatikizira kwa mbiri, ndi zina zambiri.

Malipoti aukadaulo operekedwa ndi National Development and Reform Commission nawonso akuwunikanso kuti podzafika chaka cha 2015, kuchuluka konse kwa zomenyera zakunja ku China kudzaposa matani miliyoni miliyoni. Ngati maluso atha kukwezedwa mpaka 30% m'makampani, ndalama zakachaka zimatha kukhala pafupifupi 900000. Mukukonzekera kwa extruder screw extrusion, lamulo la kusintha kwa zinthu, lingaliro la mayendedwe olimba, gawo komanso lamulo la mpweya wotopa , khalani ndi masamu komanso makina owongolera kuti awongolere mapulani a mapasa owerengera komanso kukonzekera njira zowonjezera zina.


Nthawi yolembetsa: Jun-03-2020