Kuyamba kukhazikitsa pansi otentha, funso limabuka lomwe zinthu zikuipizi ndizabwino: Kukhomerera polyethylene kapena pulasitiki.
Yankho lagona pazinthu zogwiritsira ntchito pansi, ndipo malingaliro a akatswiri, akatswiri, zokumana nazo ndi ndemanga za anthu ogwiritsira ntchito pansi zimathandizira kuthana ndi nkhaniyi.
Kutengera pafupifupi mapaipi amakono, polyethylene mabodza, mapaipi a piva a chitsulo kumayiko akunja ndi mkati mwa polyithylene yowonjezera zitsulo zowonjezera ndi zigawo zomata zomwe zimatsimikizira kuti Monolith.
Kukhomerera polyethylene: katundu
Chifukwa chophatikizana ndi matope ophatikizika a matope a polyethylene ali ndi mphamvu yayikulu
Kukhazikika polyethylene amatanthauza zinthu zapamwamba ndipo ndikupanga polymerization wa ethylene wokhala ndi mawonekedwe a ma mesh molecular ndi chidule cha Rex.
Mwayikha, njira yolumikizira ndikupanga zingwe zowonjezera. Polymer yoyambira imagwirizanitsidwa ndi kusokonezeka kwa maselo okhala ndi maunyolo aulere a mamolekyulu a mamolekyulu, ndikupanga grid yamitundu itatu, yolimba kwambiri ndi "kukumbukira".
Zinthu zosanjikiza ndizabwino
Zosintha kukula ndi mawonekedwe a chitoliro chomwe chili ndi katundu wa katundu atatha kubweza malondawo. Malinga ndi chuma, Rex siwotsika kwambiri m'mabwinja ambiri ndipo amapitilira mu moyo wautumiki.
Mapaipi a polyethylene amapanga njira 4:
- Perroxide imayambitsidwa mu polyethylene popanga zinthu. Mlingo wapamwamba kwambiri wa mtanda ndi 75%. Mwanjira yokolola yotsika komanso mtengo waukulu wa malonda, koma zinthuzo zimakhala zokhazikika komanso zotanuka.
- Re -hb - kukonza chinyezi ndi silaach ndi kuphwanya polyethylene, komwe chigobacho chimakhala cholimba, koma pomwe madzi amadutsa, amatha kupirira zopsinjika kwambiri. Kukopa ndi 65%.
- Rech - C - Polymer amathandizidwa ndi ma elekitoni. Polyethylene wokhala ndi digiri yotsika 55 - 60%.
- Rh - xd - nitric acid amagwiritsidwa ntchito. Njira imagwiritsidwa ntchito nthawi zambiri.
Njira zomwe zalembedwazi, chitoliro chomwe chimapangidwa ndi kugwiritsa ntchito silane ndichofunikira kwambiri, chimadziwika ndi mtengo wokwanira komanso zovomerezeka.
Nkhani pamutu: Kukonzekera kwa pulasitala ya laimu
Chosiyanasiyana chabwino kwambiri cha chitoliro cha pansi chofunda cha polyithylene ndi zinthu zosanjikiza chimodzi za re-xb ndi chotchinga choteteza, chomwe ndi chotchinga cha polyethylene.
Zabwino zopanga zopanga polyethylene
Chitoliro chochokera ku zinthu zoterezi chimakhala ndi kukumbukira kwamwambo
Mapaipi a kutentha omwe amapangidwa ndi njira ya Re-ha ndi re - XB ndi mawonekedwe:
- Kukana kuzolowera madontho. Munjira yopanikizika kwambiri, moyo wazogulitsa susintha. Polymer amapanikizika kwambiri mpaka 10.
- Kukumbukira kukumbukira. Madzi akamazizira mu chitoliro, madzi oundana omwe amayambitsa chitoliro cha chitolirocho, ndipo mutathamangitsa ayezi, kukula kwa chitolirocho kumabwerera ku mtundu woyamba, osavulaza zinthuzo.
- Kusungunuka ndikuwotcha kutentha kwambiri. Zinthuzo zimasungunuka pamtunda wopitilira 150 ° C, ndikuyatsa pamene kutentha kozungulira kumafika 400 ° C.
- Kukana mankhwala ndi kwachilengedwe. Mphutsi ya polyethylene sizikugwirizana ndi momwe zimakhalira, sizipanga mawonekedwe a mafanga ndi kubereka kwa mabakiteriya ndi kubereka kwa chlyorine madzi.
- Chitetezo cha chilengedwe. Zinthu zomwe zimatenthedwa sizimabisa zinthu zovulaza ndipo zimawola pa kaboni dayobosi ndi madzi poyaka.
Polyethylene sachita mantha ndi kutentha kwa kutentha
- Pulasitiki. Mobwerezabwereza, malonda saphulika ndikubwezeretsa kukula kwa bend.
- Magwiridwe antchito. Zinthu za polymer zimasunga katundu, osasinthika chitolirochi ndi kutentha kwa ozizira kuchokera ku 0 mpaka 95 ° C, koma zinthuzo zimatha kupirira komanso kukhazikika kutentha.
Chitsulo cha pulasitiki cha zitsulo: katundu
Ubwino wa polyethylene alinso ndi chubu cha pulasitiki chokhala ndi zigawo zisanu, iliyonse yomwe imagwira ntchito zina. Zigawo zakunja ndi zamkati za polymeric, ndi polythylene zipolopolo zimateteza kuwonongeka kwa makina, ndipo mawonekedwe amkati amathandizira kuthamanga kwa madzi.
Wosalala wosalala sakhala ndi zopinga za madzi
Pali zigawo ziwiri zomatira pakati pa zigawo za polymer, ndipo pakatikati - gawo lamkati ndi lingaliro la aluminiyamu lomwe limapangitsa kulimba kwa mawonekedwe a pulasitiki.
Kudalirika ndi kukhazikika pakugwira ntchito kwa pulasitiki yazitsulo kumatsimikizira mtundu wa zigawo:
- The aluminium wosanjikiza mankhwalawo amasankha mphamvu zake ndipo ayenera kukhala makulidwe osachepera atatu mm. Njira ziwiri zowonera za aluminiyam wosanjikiza zomwe zikukhudza mphamvu ya chitoliro, laser oitchera polumikizirana ndi akupanga matcheru a mkuwa ndi ukadaulo womwe umagwiritsidwa ntchito. Njira yowotchera wosanjikiza ya Jack imatchedwa wosaka, imasakazidwa komanso poyerekeza ndi masharubu samalola kutayikira m'malo olumikizana ndi zolimbitsa thupi.
- Zotsatsa zomwe zimagwiritsidwa ntchito zimatsimikizira mtolo womwe ungathetse zigawo za kutentha kwa ozizira, zomwe zimakhudzanso mphamvu ya chitoliro. Pa chito chodulira mukamagwiritsa ntchito guluu wapamwamba kwambiri, mtolowo ukusowa.
- Kudalirika kwa chitolirocho kumatsimikiziridwa ndi zigawo za polymer, polymer ndi chizindikiro cha pex ndi pe ndi munthu hydraulic.
Mukamasankha chitoliro cha pulasitiki, timawona kuti zinthuzi zimakhala ndi njira yosalala yowotchera osanjikiza aluminiyamu, kupereka chithandizo chaulere cholembedwa.
Kusankha mapaipi apansi pansi
Yesani kusankha zinthu zapamwamba kwambiri
Zolinga zambiri komanso za malonda, ndipo za wopanga, pankhaniyi ndi imodzi, kusankha kwa formula ndi mtengo wabwino kwambiri / mtundu, koma ndikofunikira kuyamba ndi mtundu:
- Kudalirika kwa chitoliro ndi mphamvu yamakina ikagwiritsidwa ntchito munthawi inayake, zomwe zingatsimikizire kuti mwachita masewera olimbitsa thupi nthawi yayitali, i. Chitolirocho chimatha kupirira zovuta za bar 10.
- Moyo wa Utumiki kapena kulimba kugwiritsa ntchito kadontho kamantha kumadalira zinthu zomwe zimapangidwa. Kuwonongeka kwa chitoliro sikuloledwa kutentha kwa coolant 95 ° C.
- Kusuntha kwaulere kudutsa mapaipi a ozizira, mawonekedwe amkati a chitolirocho chiyenera kukhala chosalala.
- Zoyenera kukonza, ndalama za ntchito zodzitetezera ndi kuyesa kwa dongosololi kukhala kovuta. Werengani zambiri za ma pici omwe angasankhe, yang'anani mu kanemayu:
Magawo ofananitsa a makina otenthetsera omwe amaperekedwa pamsika, zovuta zomwe zimapangitsa kuti ntchito ziziwunika ndi kuziona bwino. Komaliza koma, tikufanizira mtengo wa zinthu, ndikuyika ntchito ya kukhazikitsa, komanso kuvuta ndi chipangizo chotentha chotentha.
Mapangidwe a mapaipi okhala ndi mainchesi 20 mm
| Katangale | Mayunitsi. kusintha | Zitsulo Lipero Lipenga | Starsan polypropylene chubu |
|---|---|---|---|
| Kutentha kwa ntchito | Kuchokera | 95. | 95. |
| Kuchulukitsa kwa kuwonjezeka kwa mafuta | mm / m ° C | 0,026. | 0.024. |
| Kupsinjika | Mmpa | 1,013 | 1.0 |
| Kulumikizana kumalimbitsa guluu | N / onani | 70. | |
| Mphamvu yolumikizira | N / mm2. | 57. | |
| Kukhazikika kokwanira | 0.07 | 0,005 | |
| Zogwirizana ndi zamanyazi | Mw / cm ° K | 0.45 | 0.41 |
| Kuwonongeka kwa | N. | 3050. | |
| Kutambasula Mphamvu | Mmpa | 20.6 |
Phukusi lachitsulo ndi pulasitiki yochepera poyerekeza ndi polyethylene
Zonse zomwezo, zomwe chipiwa ndizabwino kwambiri: polyethylene kapena chitsulo. Kusiyana kwa zinthu m'magawo a mtanda wa polyethylene wa chitoliro cha pulasitiki komanso chitsulo.
Kuwongolera polymer, asayansi ndi akatswiri m'munda wa chertest kuti asinthe polyethylene ndi dzina la RT, pomwe mabwato okhala ndi nthambi. Polymer samataya malo ake obwezeretsanso, mosiyana ndi omwe adalipo. Malangizo a akatswiri pakusankha mapaipi onani mu kanema uyu:
Mapaipi ochokera ku Pet - rt` rt` rtythylene wokhala ndi mutu wamphamvu wa ozizira amapatula phokoso lamadzi otuluka. Polymeyer imapitilira kale kukhazikika kwa polyethylene kupsinjika kwambiri ndi kutentha kwa ozizira, komanso nthawi ya ma paipi.
Chifukwa cha zotupa zokhala ndi zomangira zokhala ndi nthambi, petulo zimasunga Thermoplastity, mapaipi amatha kugulitsidwa ndikuwombedwa popanda madera owonongeka.
Zinthu zakuthupi zimatha kuwononga chisanu ndi kuzungulira kuzungulira popanda kusintha kapangidwe kake ndi katundu. Zinthu za pe-rt zimatulutsa zinthu zonse ziwiri za polymeric ndi pulasitiki.
PET-STOR-PE - RT Polymer mu zinthu zake zimakwaniritsa zofunikira za pansi komanso zitha kuonedwa kuti ndi njira yabwino posankha mapaipi.
Nkhani pamutu: Chipangizo cha chipangizocho