Lub tensioner (tseem hu ua lashing device, fastener, lossis khi-down) yog cov cuab yeej siv tensioning siv los tuav cov khoom thauj- tiv thaiv nws los ntawm kev zawv zawg, txav, lossis ntog- thaum lub sijhawm thauj, tuav, thauj, lossis chaw cia khoom.
Tensioners ua haujlwm tshwj xeeb ntawm kev ruaj ntseg cov khoom thauj thaum nws thauj, txav mus los, xa khoom, lossis khaws cia. Thaum kaw lawm, lawv nyob ruaj khov rau hauv qhov chaw tsis muaj kev cuam tshuam; lawv muaj kev nyab xeeb, txhim khu kev qha, hnav, thiab yooj yim rau kev khiav lag luam, thaum tseem tiv thaiv cov khoom ruaj ntseg los ntawm kev puas tsuaj.
Cov cuab yeej siv no yog siv rau kev txhawb nqa steel formwork thiab compressing ntoo boards, ua haujlwm feem ntau siv nro. Cov txheej txheem yuav siv lub tensioner kom nruj lub load, ua raws li los ntawm kev ruaj ntseg nrog ib tug npauj npaim buckle. Txoj kev no yooj yim rau kev ua haujlwm thiab txhawb kev ua haujlwm ntawm ntau tshaj kaum npaug piv rau lwm cov txheej txheem tensioning.
Tensioners tau ua haujlwm kom ruaj ntseg cov khoom thauj thaum thauj, tuav, xa khoom, lossis khaws cia. Lawv muab qhov kev lees paub tias, ib zaug xauv, lawv yuav tsis tuaj; lawv muaj kev nyab xeeb, txhim khu kev qha, hnav, thiab yooj yim rau kev khiav lag luam, yog li tiv thaiv cov khoom ruaj ntseg tiv thaiv kev puas tsuaj.
