1. Yog tias qhov sib txawv loj dhau lawm, qhov sib thooj cuam tshuam yuav raug txo kom tsawg, lub tshav kub eddy tam sim no yuav tsis txaus, thiab lub weld yuav tsis fused lossis tawg vim muaj cov pob qij txha tsis zoo.
2. Yog tias qhov sib txawv me me dhau, qhov sib thooj cuam tshuam yuav nce, thiab lub vuam vuam yuav loj dhau, ua rau lub weld hlawv; los yog tus weld yuav ua rau lub qhov sib sib zog nqus tom qab tau extruded thiab dov, uas yuav cuam tshuam rau qhov chaw zoo ntawm qhov chaw ntawm weld.
Tom qab ob txoj kab npoo ntawm lub raj tsis muaj pa yog rhaub mus rau qhov kub vuam, nyob rau hauv txoj hlua khi cov hlau, ib qho khoom siv hlau zoo ib yam yog tsim kom infiltrate thiab crystallize txhua lwm yam, thiab thaum kawg tsim ruaj weld yog tsim. Yog hais tias lub zog rho tawm ntawm cov kauv ntawm cov yeeb nkab steel ua tau yog tsawg dhau, cov xov tooj ntawm cov siv lead ua feem ntau yuav tsawg, thiab lub zog ntawm cov hlau txuas poob qis, thiab qhov tawg yuav tshwm sim tom qab siv zog; yog hais tias lub qhov hluav taws xob extrusion quab yuam loj dhau lawm, hlau molten yuav tau muab tso tawm ntawm qhov weld. Tsis tsuas yog txo lub zog ntawm lub weld xwb, tab sis tseem ua rau ntau ntau ntawm sab hauv thiab sab nrauv tawg, thiab tseem ua rau cov tsis xws luag xws li weld sib tshooj.
