Durability kuyesa kwa mafilimu owonjezera kutentha
Zaka zopitilira 30 zapitazo, Polydress® LP-Keder idakondwerera kukhazikitsidwa kwake kwa msika. Kuyambira nthawi imeneyo, gulu la RKW lagulitsa zoposa masikweya mita mamiliyoni atatu a kanema wake wowonjezera wowonjezera kutentha kwa nazale ndi okonda mbewu padziko lonse lapansi. Masiku ano, monga kale, makasitomala athu amayamikira kwambiri kuwonekera kwapamwamba, kutsekemera kwa kutentha, kukhazikika, ndi khalidwe lanyengo la filimu yowonongeka mosavuta. Kafukufuku wanthawi yayitali awonetsa: Ngakhale atagwiritsidwa ntchito kwa zaka khumi, filimu yotenthetsera kutentha yopangidwa ndi RKW imapereka chitetezo chokwanira cha mbewu.
Mandalama opangidwa mu R&D amalipira: Kutengera zomwe zachitika, opanga mafilimu otsogola padziko lonse lapansi ndi matekinoloje okhudzana nawo amadziwa izi. Mu 1984, RKW idapanga mtundu watsopano wamakanema opangira ma greenhouses. Ntchitoyi idamalizidwa mogwirizana ndi University of Hohenheim ndi Reisinger Engineering Office ku Illertissen. Ma dec-ades atatu pambuyo pake, Polydress® LP-Keder, yomwe imapangidwa kuchokera ku filimu ya air bubble, keder, ndi frame profile imagwiritsidwa ntchito padziko lonse lapansi - kuchokera ku Ulaya kupita ku Middle East; kuchokera ku North ndi South America kupita ku Asia ndi Australia.
Ngakhale maelementi
Kaya m'mapiri a mapiri a Alps kapena nyengo yotentha ya ku Middle East - Polydress® LP-Keder yopangidwa ndi RKW imayimira chitetezo chapamwamba kwambiri cha nyengo ya mafilimu owonjezera kutentha. Panthawi ya "Lothar," mkuntho wazaka zana womwe unagunda kum'mwera kwa Germany ndi mphepo yamkuntho mpaka 200 km / h mu 1999, komanso mvula yamkuntho yomwe inagunda dera la Reutlingen mu August 2013, Polydress® LP-Keder inatha. kupereka kukana kopambana ndi chitetezo. Pomwe matalala amtundu wa gofuwo adang'amba mabowo akulu m'magalasi a malo obiriwira am'deralo ndikuwononga mbewu zambiri, matalalawo adangowononga mbali yakunja ya filimu ya RKW. Zomerazo zidakhalabe zolimba: Kupanga ndi chifukwa chake chuma cha nazale chinali chotsimikizika.
Kukana kwa matalala kunayesedwa mwasayansi pa filimu ya Polydress® LP-Keder greenhouse ndi Hail Research Laboratory ku Reutlingen. Mayeso okhazikika omwe adachitidwa ndi Hail Research Laboratory adatengera zomwe Swiss VFK (inshuwaransi yaku Swiss) zomanga ngati mahema ndipo zidachitika pogwiritsa ntchito "matalala" akulu akulu a 20 mm.
Polydress® LP-Keder imapirira mosavuta kuthamanga kwa 17 metres/s. Izi zikutanthauza, malinga ndi miyezo, kuti filimu ya RKW wowonjezera kutentha imatengedwa kuti ndi yosagwira matalala. Kuthamanga kwa 30 metres / s ndi kupitilira apo kumayambitsa mano pang'ono. Komabe, patapita nthawi yochepa, izi zinayambanso kukhala mmene zinalili poyamba. Pamene matalala anafika pa liwiro la 40 mamita / s, wosanjikiza woyamba wa filimuyo anali perforated; kuchokera pa liwiro la 47 metres / s filimuyo idalowetsedwa kwathunthu. Pa nthawi yonse ya mayeserowo, kukana kwa matalala kwa filimu ya Polydress® LP-Keder kunali kosasinthasintha m'lifupi lonse la filimuyo. Chifukwa cha 1-mm wandiweyani keder-chingwe m'mphepete, gawo lokhazikika la filimuyi linali cholumikizira. Izi zinali zosemphana kwambiri ndi filimu ya PE yomwe inayesedwa nthawi imodzi ndi 180 µm wandiweyani. Filimuyi ndiyomwe idawonongeka kwambiri ndi matalala pamalo olumikizirana komanso m'mphepete mwakunja. Pogwiritsa ntchito liwiro lochokera ku 29 metres / s, filimuyo idawonetsa ziboda ndipo kuchokera pa liwiro la 40 metres / s filimuyo idabowoleredwa. Ali pa benchi yoyesera ku Hail Research Laboratory, Polydress® LP-Keder adawonetsa mulingo wabwino kwambiri wokana kukana matalala.
Kukhazikika kwambiri
Akatswiriwo amavomereza kuti: Chifukwa cha kusintha kwanyengo kwa nyengo yathu, nyengo yoipa ikuwonjezereka. Izi zikutanthauza kuti, kuposa kale lonse, nazale ayenera kuteteza bwino kwambiri zosungirako zofunika kwambiri - mbewu zazing'ono mu wowonjezera kutentha - nthawi zonse; osati kuchokera ku matalala okha, komanso kuchokera ku matalala ndi mphepo yamkuntho.
Ngakhale mulingo wa wowonjezera kutentha wa DIN 11535 sufuna ziphaso zapadera zokhudzana ndi chivundikirocho, zomanga zofikira mamita anayi muutali ziyenera kupangidwa kuti zizitha kupirira mphepo yamkuntho ya 25 kp/m2 ndi mphepo yamkuntho yopitilira mamita anayi mpaka 40. kp/m2. Pankhani ya chipale chofewa, nyumba zobiriwira ziyenera kupirira katundu wopingasa pamwamba pa 25 kg/m2.
Kaya Polydress® LP-Keder ingagwiritsidwenso ntchito pazochitikazi zidzawonetsedwa ndi kafukufuku wopangidwa ndi Institute for Agricultural Technology ku yunivesite ya Hohenheim. Pakuyesa kwazinthu, akatswiri oyesa adapanga thabwa lamatabwa lokhala ndi malo opitilira mamita awiri ndi sikisi ndi kutalika kwa 60 cm. Iwo anayika filimuyo ku ufa monga momwe zingakhalire ndondomeko ya greenhouses. Pogwiritsa ntchito makina olowera mpweya amphamvu, mpweyawo unawombedwa kuchokera pamipata, ndipo potero, filimuyo inkalemedwa mofanana.
Kanema watsopano wa fakitaleyo adakhalabe osasunthika panthawi yoyesedwa, ngakhale atayendetsedwa ndi liwiro lapamwamba kwambiri la mpweya wabwino. Kanemayo adatha kupirira katundu wapamtunda mpaka 236 kg/m2, womwe ndi wokwera kangapo kuposa kukhazikika komwe kumafunikira pakugwiritsa ntchito. Komabe, kodi filimu yomwe yakhala ikukhudzidwa kwa zaka zambiri chifukwa cha nyengo imachita chiyani? Pofuna kuyesa izi, asayansi adachotsa filimu ya Polydress® LP-Keder wazaka 25 kuchokera ku wowonjezera kutentha ku Illertissen (ku Stauden Nursery Gaißmayer) ndikuyesa bwino. Zotsatira zake zimadziwonetsera okha: Kanemayo adakhalabe ndi vuto lalikulu komanso kuchuluka kwapang'onopang'ono kwa munthu popanda kuwononga chilichonse.
Kuwala koyenera kuti akule bwino
Ponseponse pakugwiritsa ntchito moyenera komanso mu labotale yoyesera, zotsatira zake zinali zofanana: Zida zophimba filimu monga Polydress® LP-Keder zimapereka chitetezo chokwanira - ngakhale nyengo yamvula kwambiri, makamaka pamene kukula kwa mbewu kumafuna kuwonekera kwakukulu ndi kuwala. . Pafupifupi. Ma thovu a mpweya okwana 1,000 pa mita imodzi iliyonse amapereka kuwala kofanana kwa malo onse olimapo. Kuchuluka kwa kuwala kofalikira kumathetsa mithunzi ndi kuyatsa magalasi. Laboratory ya kuwala ku Wangeningen idayesa zitsanzo zamakanema kuchokera ku RKW mu 2004 kwa nthawi yoyamba. Pamayesero, adatsimikiza kuti filimu ya Polydress® LP-Keder inangotaya gawo laling'ono la kuwonekera kwake, ngakhale pambuyo pa zaka 17 zogwiritsidwa ntchito. Mu 2014 zotsatira zake zinalinso zabwino kwambiri: Ngakhale kuti filimuyi inapirira kwa zaka 25 padzuwa, mvula, chipale chofewa komanso madzi oundana, koma sinasonyeze kusinthasintha kulikonse kapena kugwa mitambo. Kuwonekera kunakhalabe kofanana kwambiri. The UR 2004 ndi 2014 transparency values of Polydress® LP-Keder (haze = light distribution) yotsimikiziridwa ndi Optical Laboratory ku Wan-geningen.
RKW imatsimikizira kukhazikika kwa UV kwazaka zisanu pafilimu yake yotulutsa mpweya. Ndi mtengo wosinthira kutentha kwa 3.3 W / m2K, Polydress® LP-Keder ilinso ndi zinthu zabwino kwambiri zotchinjiriza ndipo imapatsa makasitomala mphamvu yayikulu yamphamvu. Mapangidwe opangidwa ndi filimu ya air bubble, keder, ndi mbiri amaletsa kutayikira ndi milatho yotentha kotero kuti filimuyo imatha kuteteza 95 peresenti ya kutentha kwa mkati mwa greenhouses. Mayeso ofananiza omwe adachitika ku Institute of Vegetable Gardening ku Großbeeren omwe adagwiritsa ntchito nyumba ziwiri zobiriwira zomangidwa zofanana, iliyonse yotalika 10 x 50 metres adawonetsa kuti pansi pa galasi la 4 mm wandiweyani ndi filimu ya Polydress® LP-Keder yofananira idapeza ndalama zonse ziwiri. tomato ndi saladi. Popanda kuwongolera chinyezi, kupulumutsa mphamvu pogwiritsa ntchito filimu ya RKW kunakwana 44 peresenti ya saladi ndi 27 peresenti ya zomera za phwetekere.
Kuyika kosavuta mosasamala kanthu za nyengo
Kupatula mtengo wamagetsi, Polydress® LP-Keder imachepetsanso kwambiri nthawi ndi khama lomwe malo osungiramo ana ayenera kuyesetsa kukhazikitsa kapena kukonza nyumba zawo zobiriwira. Kupyolera mu kulumikizidwa kwa keder ndi kulemera kwake kochepa, filimuyo ikhoza kukhazikitsidwa kuchokera padenga lotsekedwa kapena makoma am'mbali.
Denga la nyumbayo siliyenera kupezeka; izi kumawonjezera chitetezo ndi kuphweka njira unsembe. Izi zikutanthauza kuti filimuyo amangotengedwa ku mpukutuwo, kudyetsedwa mu chimango mbiri, anakokera kwa ankafuna mapeto mfundo cha pamwamba, ndiyeno kudula ntchito mpeni kapena lumo. Mafilimu akale kapena achilema amatha kusinthidwa mosavuta nyengo iliyonse. Izi zimapangitsa kuti mtengowo ukhale wotsika ndipo umathandizira mwachindunji kukhazikika. RKW a polyethylene wowonjezera kutentha filimu akhoza zobwezerezedwanso kapena thermally kukonzedwa zina.
Zambiri zokhuza mafilimu owonjezera kutentha a Polydress® LP-Keder ndi machitidwe awo osiyanasiyana angapezeke pa www.rkw-group.com.