Conductivity Thermal of istro, iimpawu kunye nezinto ubukhulu

Le conductivity thermal ye istro amagwebu yenye yeempawu ezibalulekileyo banomdla kuphela iingcali kodwa abathengi abaqhelekileyo. Le nto kubizwa ngokuba ubushushu isiponji thermal nolusasebenzayo 98% zezulu. Yena ke entolongweni iiseli istro amagwebu.

Isakhiwo kukhuselekile ngokupheleleyo ngenxa yempilo, ngokunjalo izinto isetyenziselwa ukwenziwa nokubopha ukutya. Yena Kulula ukusebenza, eyifumanayo yande yayo kwishishini lokwakha, kwaye unalo ngexabiso eliphantsi.

Oko umele ukwazi malunga istro eyandisiweyo conductivity thermal

conductivity Thermal of istro esezantsi kakhulu, ekubeni umoya yona umbandela isiseko kwakhona ezi mpawu. Ngoko ke, i parameter echazwe amakheswa yahluka ukusuka 0,037 ukuya 0,043 W / MK, ngokubhekisele umoya, olu phawu yi 0,027Vt / MK.

istro eYandisiweyo iveliswa ngokwe GOST 15588-86 kwaye ulondolozo libalaseleyo, ukwandisa imigaqo yokusebenza, unako ukunciphisa iindleko zokufudumeza biyela ebandayo. Le propati zigcinwa naxa ekucaca ukuba amaqondo aphantsi kunye nokufuma eliphezulu, kunjalo ukusebenzisa istro kungaba phantsi kwendawo yokugcina, kwakunye kwi zoyilo ifriji.

Le conductivity thermal ye istro iphantsi, ngoko ke ukusetyenziswa kwale eziphathekayo kuba, hayi kuphela ekhaya kodwa ngenxa ekugqibeleni yangaphandle. Noko ke, lo msebenzi osemqoka ziya kwahluka ngokuxhomekeke mninzi. I aphezulu oko, isiqulatho styrene ephakamileyo, istro sibi ukugcina ubushushu. Umzekelo, kwimeko extruded istro amagwebu, conductivity yayo ezishushu iya kuba 0,028Vt / MK, ngokuba granules styrene kulo mzekelo sele enalo kwisakhiwo esinye sheet, njengoko kungekho therebetween isikhewu.

Kuthelekiswa conductivity thermal in brand ezahlukeneyo

Thelekisa, ungabona iintlobo ezininzi istro, lexinene conductivity thermal abangavumelani. Density PSB-C15 ungaphantsi kwama-15 kg / m ^3, lo gama i umda conductivity thermal uvela 0.07-0.08 W / MK. Ngokumalunga brand PSB-C35, ukuxinana balo babulingana isiphelo kg 25.1 ukuya ku-35 / m ^3, lo gama conductivity thermal ngu 0,038 W / MK. Ukuthengiswa kubonakala ngakumbi kwaye extruded istro amagwebu. I brand 35 mninzi yahluka ukusuka 33 ukuya 38, ngoxa conductivity thermal ilingana 0.03.

Ukuba phambi uthe wabunqala 45, eyokuqala i parameter ayehluka 38.1 ukuya ku-45, ngoxa owesibini ilingana 0,032. conductivity Thermal of istro usezantsi kakhulu xa kuthelekiswa nale semvelo iimpawu kwezinye izinto. Umzekelo, udongwe yandiswa kwindawo ukuxinana 1200 kg / m ³ uye conductivity thermal elingana 0,58.

Ukuthelekisa ukuba conductivity wobushushu of istro kunye nezinye izinto

Kwiinkalo ezininzi zoshishino kunye nokwakhiwa eyandisiweyo istro esetyenziswayo namhlanje. Le conductivity emhlabeni, ukuthelekisa ziza ekhankanywe ngezantsi, akukho kunokuba phantsi kule meko. Kodwa uboya izimbiwa lolu laka yahluka ukusuka 0,07 ukuya 0.08 W / MK. Ke ukuba ikhonkrithi, le conductivity thermal ngayo ilingana 1.30, ngelixa concrete - 2,04.

aggregate ezincinane amagwebu iphawulwa conductivity thermal elingana 0,58 no 0.37, ngokulandelelana kwazo. Siye kwandiswa istro, ngenxa kuthelekiswa, le conductivity thermal yi 0,028Vt / MK. Le conductivity thermal of istro isiponji kwakhona kaninzi kuthelekiswa. Kwimeko yokuqala, eli xabiso waba 0,07, kwimeko amacwecwe.

iimpawu eziphambili: ukhuseleko, soundproofing kunye windproof neempawu

istro eYandisiweyo ekhuselekileyo, kwaye ungasebenzisa kwakhona. Ngelo xesha linye i-bume uya kuvelisa ezikhutshwayo zero. Ngokutsho uphando, xa neziseko istro, styrene ayifumanekanga yingozi. Yona ke soundproofing kunye ifestile, ngoko usebenzisa Styrofoam akuyomfuneko ukusebenzisa izinto ezongezelelweyo ukuze kuphuculwe umsebenzi windproof kunye soundproofing.

Ukuba amandla isandi-ukufunxa kufuneka ziqiniswe, ububanzi umbandela maleko kufuneka zandiswe. Le conductivity thermal of XPS sele ukwazi, kodwa oku - asiyiyo yodwa iimpawu, ekufuneka uyazi phambi kokuba kuthengwe lo mbandela. Umzekelo, istro ayikho hygroscopic, ngoko, oko akuthethi ukufunxa amanzi kunye ukunyakama, ngaba aludumbanga yaye akafuni ukugqabhuza, yaye enganakunyibilika engamanzi. Xa zibekwe emanzini eyandisiweyo istro, iya ukugqobhoza ngaphakathi isakhiwo,% 3 kuphela kwipleyiti ubunzima, lo gama iimpawu eziphathekayo kuhlala ingatshintshanga.

Le umphunga kunye namanzi baxomoloza kube lula ukuba baphume styrofoam, ngoko makwenziwe ngenyameko ukuthintela ekumisweni amafu. Ukuze benze oku, imithetho uyilo ayahlonitshwa. ukumelana nokufuma istro ivumela ukulisebenzisa ubushushu isiseko, apho qha engaphephekiyo ngezinto komhlaba.

iimpawu ezongezelelweyo: inertness eziphilayo nemichiza

ibhodi amagwebu zokuvala, nto leyo okhankanywe ngentla conductivity thermal, uzinzile ukuba iikhemikhali kunye nezinto eziphilayo. Iimpawu umbandela uya kuwugcina na, ukuba isakhiwo sayo iya kuchaphazeleka:

• isisombululo isepha;
• acid;
• izisombululo ityuwa ngohlobo amanzi olwandle;
• arhente bleach;
• ammonia;
• gypsum;
• amanzi-awonayo dayi;
• izisombululo kwakuse;
• lime;
• samente.

Njengoko le asidi, Ingasekho istro eyandisiweyo kufuneka ingachukunyiswa yi-nitric acid kunye acetic acid wamandla. Ngexesha lokufaka kufuneka athintele ukufikelela iimpuku eziphathekayo kunye neentubi, kuba kunokubangela umonakalo kwi sakhiwo. Phantsi yempembelelo kwezisombululo ikhonkrithi iba ngokuyinxenye umbandela njengoko baboniswa organic izinyibilikisi. Uzinzo Ungakwazi ukucacisa umlinganiselo pores ezivulekileyo kwaye ezo zivaliweyo, ngokuxhomekeke uhlobo kunye nohlobo usambathisa.

Fire-istro

ukungavumelani kwe conductivity thermal of istro eyandisiweyo sele ikhankanyiwe apha ngasentla, kodwa kubalulekile ukwazi okungakumbi ngalo mbandela ingozi yomlilo oko kukuthi izinto ezinokutsha, kodwa enokumelana nomlilo elungileyo, kuba iqondo lobushushu auto-ngokwayo yi 4910 ° C. Ukuba uthelekiso zesi salathisi ngeenkuni, kuba amaxesha 1.8 ephakamileyo, kuba umthi uya kwanela 2600 kuphela ° C.

LINGATSHA kunye nokukwazi ukungenisa ubushushu

Ukuba umlilo uya kuba ngenxa imizuzwana-4, impahla-ngokwalo damped. Kwinkqubo yokutsha iya kuvelisa ubushushu yokwambathisa zibe ngumqulu ka 1000 MJ / m ^3, malunga amaplanga, eli nani isusela ukususela 7000 ukuya 8000 MJ / m ^3, oku kubonisa ukuba iqondo lobushushu kuya kuba ngaphantsi kakhulu xa utshisa ezinepolisterini. On sale namhlanje anokufunyanwa istro eYandisiweyo self-mlilo, evela kongezwe retardants ilangatye. Kodwa ngokuhamba kwexesha, isiphumo lilahlekile, yaye umbandela omelwe kwiqela Ukungabinakutsha T2 ekugqibeleni baya yabelwe Class T4.

Ububanzi istro

istro eyandisiweyo, conductivity thermal, Ebubanzini apho kufuneka ulumkele ukuba uceba ukuba uthenge le yokugquma iveliswa namhlanje abenzi ezahlukeneyo. I Iphepha angacuthwa babulingana nesandla kuluhlu ukususela 20 mm ukuya ku-20 cm. Noko ke, abasebenzisi abaninzi babuza apho iphepha kungcono ukukhetha. Ukuze ubone eli xabiso, kufuneka ubuze, yintoni na ukuxhathisa transfer ubushushu. Apha yonke into iya kuxhomekeka amazwe mmandla. Umzekelo, kumbindi eMoscow kweelana eludongeni kufuneka ilingane 4.15 m ² ° C / W, ngokumalunga kwimimandla ekumzantsi, apho kuya kubakho kwanele 2.8 ^m2 ° C / Watt.