Lub chaw tsim khoom ntawm PU ua npuas ncauj insulated yeeb nkab tsim cov raj xa hluav taws xob los ntawm kev sib txuas cov yeeb nkab kev pab cuam, nruj polyurethane (PU) ua npuas ncauj rwb thaiv tsev thiab ib qho kev tiv thaiv sab nrauv. Cov qauv no yog siv dav hauv cheeb tsam cua sov, hauv cheeb tsam cua txias, roj thiab roj, tshuaj lom neeg thiab kev lag luam cov kav dej vim tias cov txheej txheem rwb thaiv tsev yuav pab txo qhov kub thiab txias ntawm qhov nruab nrab thauj.
Cov txheej txheem tsim khoom feem ntau pib nrog kev npaj thiab tshuaj xyuas cov yeeb nkab steel thiab cov txheej txheem sab nrauv. Ob lub ntsiab lus yog nyob rau hauv concentrically, thiab kua PU cov ntaub ntawv yog txhaj rau hauv qhov chaw ntawm lawv. Cov PU sib tov nthuav dav thiab kho nyob rau hauv qhov chaw, tsim ib txheej rwb thaiv tsev txuas ntxiv uas txuas rau sab hauv thiab sab nrauv ua ke. Process control is important because foam density, dimensional accuracy, bonding and curing conditions can affect the finished pipe.
Cov cuab yeej siv ntau lawm thiab kev kuaj muaj peev xwm kuj tseem ceeb rau qhov zoo ib yam. Ib tus kws tshaj lij PU ua npuas ncauj insulated yeeb nkab tsim yuav tsum muaj peev xwm tswj cov khoom siv raw, foaming tej yam kev mob, yeeb nkab qhov ntev thiab tiav- cov khoom ua tau zoo thoob plaws hauv kev tsim khoom. Ntau cov yeeb nkab diameters, rwb thaiv tsev thicknesses thiab casing specifications kuj yuav ua tau raws li qhov project yuav tsum tau.
Tangshan Xingbang Pipeline Engineering Equipment Co., Ltd. tau tshwj xeeb hauv insulated thiab tiv thaiv -corrosion pipelines txij thaum 1995. Lub tuam txhab ua haujlwm 310,000 m² ntau lawm puag nrog 28 cov kab ntau lawm thiab ntau tshaj 200 cov khoom tsim khoom thiab kuaj cov khoom. Nws txhua xyoo insulated yeeb nkab muaj peev xwm ntau tshaj 3,000 km, nrog rau cov khoom siv hauv cua sov, txias, roj thiab roj, LNG, tshuaj lom neeg thiab kev siv tshuaj.