Kev tsom xam ntawm kev tawg ntawm saum npoo ntawm cov tshuab ntawm cov pa
Cov ntawv kho tshuab cov riam yog ua los ntawm bimetallic nias. Piv txwv li, lub cev ntawm tus hniav yog Q235, thiab kev txiav yog crwmn steel. Cov txheej txheem yog: Rolling round hlau rau hauv steel ib daim hlau - npaj sab - rabe {{} {} {} {degree thiab ncaj. Tom qab sib tsoo, ntau cov kab nrib pleb zoo tau pom ntawm cov hniav npoo.
Tom qab cov xim thaiv kom pom tau, nws tuaj yeem pom tias cov kab nrib pleb ntawm CRWMN STAR yog sender, perpendicular rau cov cim sib tsoo, thiab zoo li yog mesh-puab. Cov npoo av tawg yog qhib, thiab tsis muaj kev tawg rau saum npoo ntawm Q235 hlau hauv paus ntawm cov hniav.
Thaum cov qauv yog txiav condordally ntawm qhov nrib pleb, nws tuaj yeem pom tau tias cov nrib pleb uas tau loj hlob los ntawm saum npoo, tom qab ntawd rawg, thiab qhov sib sib zog nqus yog tortuous. Tseem muaj ob peb qhov kev txiav txim tsis tau zoo ntawm ob tog ntawm tus Tsov tus tw kawg, uas muaj raws cov nplej. Tom qab cov qauv tau etched nrog 4% Nitric Acid Choj cov txheej, ib txheej dawb sab ci (theem nrab quenching txheej) tuaj yeem pom ntawm txheej sab saum toj; Hauv qab no nws yog qhov chaw npau taws tsaus; Thaj chaw xim muaj xim nyob hauv nruab nrab yog qhov chaw txaus siab tsis txaus. Cov qauv sib dhos ua ke yog martensite, seem ntawm lub cev thiab cov martensite carbide, thiab lub martensite tsis tshua muaj ntxhib (txog qib 5). Tom qab txuas ntxiv sib sib zog nqus etching, nws yog pom tseeb tias cov carbides tau faib hauv lub network lossis sib quas ntus.
Los ntawm cov kev soj ntsuam saum toj no, nws tuaj yeem pom tau tias cov qauv cua sov uas tsis raug tshuaj thiab lub network ntawm cov txheej txheem sib tsoo, thiab qhov laj thawj tsis zoo yog qhov laj thawj rau kev tawg ntawm cov hniav.
