PTFE cev
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PTFE cev
PTFE yog thawj fluoropolymer nrhiav pom, thiab nws kuj yog qhov nyuaj tshaj plaws rau kev ua haujlwm. Txij li thaum nws melting kub tsuas yog ob peb degrees qis dua nws qhov kub thiab txias, nws tsis tuaj yeem yaj ua tiav. PTFE yog ua tiav siv txoj kev sintering, nyob rau hauv uas cov khoom yog rhuab mus rau ib tug kub hauv qab nws melting point rau ib lub sij hawm ntawm lub sij hawm. PTFE crystals unravel thiab interlock nrog ib leeg, muab cov yas nws xav tau zoo. PTFE tau siv nyob rau hauv kev kho mob kev lag luam thaum ntxov li 1960s. Niaj hnub no, nws yog feem ntau siv ...