Chitsulo chokulunga zitsulo ndi chinthu chogwiritsidwa ntchito kwambiri potseka, chopangidwa ndi zitsulo zosiyanasiyana (monga chitsulo chosapanga dzimbiri, mkuwa, aluminiyamu) kapena bala la pepala la alloy. Chili ndi kusinthasintha kwabwino komanso kukana kutentha kwambiri, kukana kupanikizika, kukana dzimbiri ndi zina, kotero chili ndi ntchito zosiyanasiyana mumakampani opanga ma valve.

Chitsulo chozungulira chachitsulo chimagwiritsa ntchito mwanzeru kukana kutentha, kulimba ndi mphamvu ya chitsulo komanso kufewa kwa zinthu zopanda chitsulo, kotero kuti kutseka kumakhala bwino, ndipo ntchito ya tepi yosapanga dzimbiri yozungulira graphite pad ndiyo yabwino kwambiri. Chiŵerengero cha precompression ndi chochepa kuposa cha asbestos winding pad, ndipo palibe cholakwika cha kutayikira kwa asbestos fiber capillary. Mu mafuta, 0Cr13 imagwiritsidwa ntchito pazitsulo zachitsulo, pomwe 1Cr18Ni9Ti ikulimbikitsidwa pazida zina.

Chitsulo chosapanga dzimbiri chokhala ndi graphite flexible winding pad mu gasi medium, pogwiritsa ntchito mphamvu ya 14.7MPa, mu madzi angagwiritsidwe ntchito mpaka 30MPa. Kutentha -190~+600℃ (ngati palibe mpweya, mphamvu yochepa ingagwiritsidwe ntchito mpaka 1000℃).

Chophimba chozungulirachi ndi choyenera kugwiritsa ntchito zosinthira kutentha, ma reactor, mapaipi, ma valve, ndi ma flange olowera ndi otulutsira pampu okhala ndi kuthamanga kwakukulu ndi kusinthasintha kwa kutentha. Pa kupsinjika kwapakati kapena kupitirira apo komanso kutentha kopitilira 300 ° C, kugwiritsa ntchito mphete zamkati, zakunja kapena zamkati kuyenera kuganiziridwa. Ngati chophimba chopingasa ndi chopingasa chikugwiritsidwa ntchito, chophimba chopingasa chokhala ndi mphete yamkati ndi chabwino.

Kutseka bwino kungapezekenso poika mbale zosinthika za graphite mbali zonse ziwiri za graphite winding pad yosinthasintha. Chotenthetsera chotayira cha chomera chachikulu cha feteleza ndi chida chofunikira kwambiri cha kutentha kwambiri komanso kuthamanga kwambiri. Graphite winding pad yosinthasintha yokhala ndi mphete yakunja imagwiritsidwa ntchito, yomwe simataya madzi katundu akadzaza, koma imataya madzi katundu akachepa. Graphite plate yosinthasintha ya 0.5mm makulidwe ake imawonjezedwa mbali zonse ziwiri za gasket ndikudulidwa kukhala mawonekedwe a arc. Gawo lolumikizira limapangidwa ndi diagonal lap joint, yomwe ikugwiritsidwa ntchito bwino.