1. **SA txhais li cas hauv steel?**
Hauv steel, "SA" sawv cev rau "Stress Relieved Annealed." Qhov no yog txheej txheem kev kho cua sov uas cov hlau tau rhuab mus rau qhov kub thiab txias thiab maj mam txias. Cov txheej txheem no txo cov kev ntxhov siab sab hauv los ntawm kev tsim khoom (xws li dov lossis vuam) thiab softens cov hlau los txhim kho nws cov ductility thiab machinability.
2. ** Puas yog A36 kub lossis txias dov?**
A36 steel feem ntau muaj xws li kub- dov. Koj yuav pom A36 nyob rau hauv daim ntawv ntawm cov qauv duab zoo li kuv- kab teeb, kab, cov ces kaum, thiab daim hlau, uas yuav luag tshwj xeeb kub- dov. Thaum nws muaj peev xwm nrhiav tau A36 uas tau txias - dov los yog txias - kos rau hauv cov tuav kom txhim kho qhov chaw tiav thiab qhov tseeb qhov tseeb, nws cov qauv tseem ceeb thiab feem ntau yog kub - dov.
3. ** Peb hom kub dov hlau yog dab tsi?**
Kub- dov steel feem ntau categorized los ntawm nws cov khoom kawg. Peb hom tseem ceeb yog:
* ** Kub-Rolled Structural Sections:** Cov no suav nrog cov qauv qauv zoo li kuv- kab teeb, H- kab teeb, kab, thiab cov ces kaum, feem ntau siv hauv kev tsim kho thiab framing.
* ** Kub-Rolled Sheet thiab Coil:** Qhov no yog steel dov rau hauv dav, tiaj daim, feem ntau siv rau tsheb thav duab, railway carriages, thiab raws li ib tug pib khoom rau txias -rolling.
* ** Kub-Rolled Bars:** Cov no yog cov ntu ntev, cov khoom muaj nyob rau hauv rounds, squares, thiab flats, siv rau kev tsim, machining, thiab kev tsim kho.
4. ** Puas yog A36 sib nqus?**
Yog, A36 steel yog hlau nplaum. Nws yog qis- carbon steel uas feem ntau muaj ferrite thiab pearlite, uas yog ferritic (hlau-raws li) theem. Cov theem no ua rau cov hlau muaj zog sib nqus, ib yam li lwm cov pa roj carbon ntau.
5. ** Puas yog A36 steel lossis txhuas?**
A36 yog ib hom hlau, tshwj xeeb yog qis- carbon steel. Nws tsis yog aluminium. Qhov "A" hauv A36 sawv cev rau "ferrous" (hlau-raws li) cov khoom siv hauv ASTM tus qauv, thiab "36" qhia txog nws qhov tsawg kawg nkaus yield zog ntawm 36,000 psi. Aluminium yog qhov sib txawv kiag li uas tsis yog{10}}ferrous hlau nrog nws tus kheej cov lej lej.
