Momwe mungasankhire zowonjezera mumadzi a polyurethane resin

Momwe mungasankhire zowonjezera mu polyurethane yamadzi? Pali mitundu yambiri ya othandizira opangidwa ndi madzi a polyurethane, ndipo mawonekedwe ake ndi ambiri, koma njira zothandizira ndizokhazikika. 

01

Kugwirizana kwa zowonjezera ndi zogulitsa ndi chinthu choyamba chomwe chiyenera kuganiziridwa posankha zowonjezera. Pazochitika zodziwika bwino, zothandizira ndi zinthuzo zimafunika kuti zigwirizane (zofanana ndi zomwe zimapangidwira) komanso zokhazikika (palibe mbadwo watsopano wazinthu) muzinthu, mwinamwake zimakhala zovuta kuchita nawo gawo la wothandizira.

02

Zowonjezera muzinthu zowonjezera ziyenera kukhalabe ndi ntchito yoyambirira ya zowonjezera kwa nthawi yaitali popanda kusintha, ndipo kuthekera kwa chowonjezeracho kusunga ntchito yoyambirira mu malo ogwiritsira ntchito kumatchedwa kukhazikika kwa zowonjezera. Pali njira zitatu zothandizira kutaya katundu wawo wapachiyambi: volatilization (kulemera kwa maselo), kuchotsa (kusungunuka kwa mauthenga osiyanasiyana), ndi kusamuka (kusungunuka kwa ma polima osiyanasiyana). Panthawi imodzimodziyo, chowonjezeracho chiyenera kukhala ndi madzi, kukana mafuta ndi kukana zosungunulira. 

03

Pakukonza zinthu, zowonjezera sizingasinthe momwe zimagwirira ntchito ndipo sizikhala ndi zotsatira zowononga pakupanga ndi kukonza makina ndi zomangamanga.

04

Zowonjezera zomwe zimagwiritsidwa ntchito kusinthasintha, zowonjezera ziyenera kukwaniritsa zofunikira za zinthu zomwe zimagwiritsidwa ntchito pogwiritsira ntchito, makamaka poizoni wa zowonjezera.

05

Kuti mupeze zotsatira zabwino, kugwiritsa ntchito zowonjezera kumasakanizidwa kwambiri. Posankha kuphatikiza, pali zinthu ziwiri: imodzi ndi ntchito yophatikizana kuti mupeze zotsatira zabwino, ndipo ina ili ndi zolinga zosiyanasiyana, monga osati kungokweza komanso kupukuta, osati kuwonjezera kuwala komanso antistatic. Izi ziyenera kuganiziridwa: muzinthu zomwezo zidzatulutsa mgwirizano pakati pa zowonjezera (zotsatira zonse zimakhala zazikulu kuposa kuchuluka kwa zotsatira za kugwiritsidwa ntchito kamodzi), zotsatira zowonjezera (zotsatira zonse ndizofanana ndi kuchuluka kwa zotsatira za ntchito imodzi) ndi zotsatira zotsutsana (zotsatira zonse ndizochepa poyerekeza ndi zomwe zimagwiritsidwa ntchito kamodzi), kotero nthawi yabwino yopangira ma synergies, kupewa zotsatira zotsutsana.

 

Popanga madzi opangidwa ndi polyurethane kuti awonjezere mtundu wina wa zowonjezera, m'pofunika kumvetsera udindo wake m'magawo osiyanasiyana osungiramo, kumanga, kugwiritsa ntchito, ndi kulingalira ndikuwunika ntchito yake ndi zotsatira zake mu gawo lotsatira. 

Mwachitsanzo, pamene utoto wa polyurethane wamadzi umagwiritsidwa ntchito ndi zonyowetsa ndi zobalalitsa, zimagwira ntchito inayake posungira ndi kumanga, komanso zimakhala zabwino kwa mtundu wa filimu ya utoto. Nthawi zambiri pamakhala zotsatira zazikulu, ndipo nthawi yomweyo zimabweretsa zotsatira zabwino panthawi imodzi, monga kugwiritsa ntchito silicon dioxide, pali kutha kwamphamvu, kuyamwa kwamadzi, anti-adhesion ndi zina zabwino.

Kuonjezera apo, pogwiritsira ntchito wothandizira wina akhoza kukhala ndi zotsatira zoipa, monga kuwonjezera kwa silicon-containing defoaming agent, zotsatira zake zowonongeka zimakhala zofunikira, zimatha kukhala ndi zotsatira zabwino, komanso kuwunika ngati pali dzenje la shrinkage. , si mitambo, sichimakhudza recoating ndi zina zotero. Zonsezi, kugwiritsa ntchito zowonjezera ndiko, pamapeto pake, njira yothandiza, ndipo njira yokhayo yowunikira iyenera kukhala ubwino wa zotsatira zogwiritsira ntchito.