Chithovu cha polyurethane ndi polima wapamwamba kwambiri.Chopangidwa kuchokera ku polyurethane ndi polyether chomwe chasakanizidwa mwaukadaulo.Mpaka pano, pali mitundu iwiri yakusinthasintha thovu ndiwolimba thovu pamsika.Pakati pawo, thovu lolimba ndi chotseka-selokapangidwe, pamene akusinthasintha foam ndiTsegulani cell kapangidwe.Zomangamanga zosiyanasiyana zimakhala ndi magawo osiyanasiyana ogwiritsira ntchito.
Tntchito yake ndi polyurethane thovu
Pthovu la olyurethane limatha kuchitapo kanthu.Kaya izo ziriwolimba thovu kapenakusinthasintha thovu, zinthuzo ndi zabwino ndipo zimatha kusungidwa.Inde, ingakhalenso ndi akutsekereza mawu mphamvu, ndipo itha kugwiritsidwa ntchito m'magawo ena kupatula mawu ena bwino kwambiri.Low matenthedwe madutsidwe ndi ntchito yabwino kutchinjiriza matenthedwe ntchito.Mu chithovu cholimba cha thovu la polyurethane, pali zinthu ndikutenthetsa kutentha ndichosalowa madzi ntchito, zomwe zimachepetsa matenthedwe matenthedwe.M'madera ena, cholumikizira chotsika chotere chimafunikira, ndipo zomatira zina sizoyenera kugwiritsidwa ntchito.
Thentchito chithovu cha polyurethane
Kupulumutsa mphamvu ndi kuteteza chilengedwe.Monga chodzaza, kusiyana kumatha kudzazidwa kwathunthu, ndipo ntchito yomatira imatha kukwaniritsidwa.Pambuyo kuchiritsa, imatha kumamatira mwamphamvu ndipo imakhala ndi moyo wautali wautumiki.
Compression ndi shockproof.Chithovu cha polyurethane chikachiritsidwa kwathunthu, sipadzakhala kusweka, dzimbiri ndi kusenda.Zili ndi mitundu yosiyanasiyana ya ntchito ndi ntchito zosiyanasiyana.Itha kugwiritsidwa ntchito mu mphamvu zatsopano, makampani ankhondo, chithandizo chamankhwala, ndege, zombo, zamagetsi, magalimoto, zida, zida zamagetsi, njanji yothamanga kwambiri, ndi zina zambiri, zokhala ndi ma conductivity otsika, kukana bwino kutentha, komanso kusunga kutentha.Imagwiritsidwa ntchito pamagetsi, magetsi, ndi madera ena, imatha kukana kutentha kwambiri ndikuchita ntchito zoziziritsa kukhosi.
Soundproofing ndi insulating.Pamene thovu la polyurethane litachiritsidwa kwathunthu, likhoza kukhala lopanda chinyezi komanso lopanda madzi.Ngakhale m’malo amdima ndi achinyezi, sipadzakhala mavuto.
Mavuto wamba ndi njira zopewera za thovu la polyurethane
| Vuto Losazolowereka | Zomwe Zingatheke | Njira Zopewera |
| kutayikira thovu |
| 1. Sinthani pulagi ya thovu ndi mphete yakunja ya silicone ya thovu kuti muwonetsetse kuti pulagi ya thovu ndi mbiya zatsekedwa mwamphamvu. 2. Sinthani chiŵerengero cha mankhwala a thovu. |
| kuwira | 1. Chithovu chambiri. 2. Nkhungu yotulutsa thovu imakhala yotayirira komanso yopunduka ndi mphamvu pakuchita thovu. | 1. Sinthani kuchuluka kwa thovu 2. Konzani kapena kusintha nkhungu yotulutsa thovu |
| vacuoles | 1. Kuchuluka kwa thovu ndi kochepa 2. Chiŵerengero chosayenera cha yankho la katundu ndi wothandizira otsika thobvu 3. Liwiro lotulutsa thovu ndilothamanga kwambiri, 4. Kutuluka kwa thovu mumgoloku ndikotalika kwambiri. | 1. Onjezani kuchuluka kwa thovu 2. Sinthani chiŵerengero 3. Sinthani kuthamanga kwa thovu 4.Sinthani malo a bowo la jakisoni kapena onjezerani jekeseni kuti mufupikitse kutuluka kwamadzi otulutsa thovu mumgolo. |
| osamata | 1. Pamwamba pa thanki yamkati pali mafuta 2. Kusalala kwapamwamba kwa liner yamkati kapena khoma lamkati la opaleshoni ndilokwera kwambiri, ndipo kumamatira kwamadzimadzi amadzimadzi ndikosavuta. 3. Kutentha kozungulira kumakhala kochepa kwambiri, ndipo kutentha kwapamtunda kwa yankho la katundu, nkhungu, mbiya ndi chipolopolo ndizochepa kwambiri. | 1. Chotsani madontho amafuta ndi mowa 2. Bwezerani liner kapena chipolopolo, kapena kuchepetsa zofunikira pa mapeto a liner (khoma lamkati la chipolopolo) 3. Wonjezerani kutentha kozungulira ndikuwotcha dongosolo la thovu. |
| Inhomogeneous osakaniza | 1. Kuthamanga kwa jekeseni ndikotsika kwambiri 2. Njira yothetsera katundu ndi yonyansa kwambiri kapena kutentha kumakhala kochepa kwambiri, ndipo kutuluka kwake kumakhala kosakhazikika. | 1. Wonjezerani kuthamanga kwa jekeseni ndikulimbitsa kusakaniza kwa zinthu zakuda ndi zoyera 2. Sefani yankho la katundu ndikutsuka mutu wamfuti womwe ukutuluka thovu nthawi zonse.Onjezani kutentha kwa yankho la stock. |
| kuchepa | 1. Chiŵerengero chosayenera cha yankho la katundu 2. Kusakaniza kosagwirizana | 1. Sinthani chiŵerengero 2. Sakanizani mofanana |
| kusalimba kosagwirizana | 1. Kusakaniza kosagwirizana 2.Kuthamanga kwamadzi otulutsa thovu kumbali iliyonse mu mbiya ndikotalika kwambiri | 1. Sakanizani mofanana 2.Sinthani malo a bowo la jakisoni kapena onjezerani jekeseni kuti mufupikitse kutuluka kwamadzi otulutsa thovu mumgolo. |
| kusintha | 1. Kukalamba sikokwanira 2. Mphamvu ya zinthu za chipolopolo sikokwanira kufota ndi kupunduka | 1. Wonjezerani nthawi yokalamba 2.Kupititsa patsogolo kukana kwa shrinkage kwa zinthu |
Nthawi yotumiza: Jun-23-2022