Moob Xaj Hlau Kawg

Cov raj raj raj ua los ntawm Dingjin feem ntau yog siv nyob rau ntawm cov kav dej, cov raj yas npog, thiab nruab nrog cov raj tawg, thiab raug ntsia rau ntawm cov xaim sab nraud ntawm cov yeeb nkab xaus rau thaiv lawv. Lawv tau siv los foob cov raj xa khoom thiab ua haujlwm tib yam li cov yeeb nkab plugs, tab sis cov raj raj muaj peev xwm tau welded ncaj qha yam tsis xav tau lwm cov fittings. Feem ntau, lawv tau siv thaum kawg cov kav dej rau kev ntsuas lub hom phiaj. Lub raj raj raj yuav tsum tau welded rau tom qab kev sib piv tau ua tiav. Tsis tas li ntawd, tshem lub cwj raj tso rau cov khoom txuas ntxiv txuas ntxiv lossis rho tawm los ntawm kev sib txuas lwm cov yeeb nkab hauv cov xwm txheej tshwj xeeb. Cov raj raj raj muaj feem ntau siv nyob rau hauv qis {8} pakhaum rau kev cais tawm yooj yim thiab kev txij nkawm, thaum lub raj raj cas tsis tso cai rau cov kev pabcuam siab thiab nruab nrab.

Dingjin hu ua tsawg -} cov hlau steel kawg cap li mos hlau xaus cap uas muaj cov pa roj carbon ntau los ntawm 0.10% rau 0.30%. Nws yog yooj yim ua hauv ntau yam duab.

Cov ntsiab lus carbon cov ntsiab lus hauv qab 0.25% nyob rau hauv cov steel steel ua rau muaj zog tsawg thiab hardness, ua rau nws mos, li no tau ua lub npe muag muag. Pawg no suav nrog cov hlau ua kom zoo nkauj thiab qee qhov siab- Cov hlau zoo li qub uas tsis muaj kev kho mob ua yam tsis muaj kev kho mob cua sov. Ib txhia raug rau carburizing thiab lwm txoj kev kho kho cua sov rau cov ntawv thov uas xav tau cov khoom tiv thaiv hauv cov khoom siv tshuab.

Lub annealed qauv ntawm tsawg - cov roj carbon steel muaj cov hlaws tsawg dua thiab tawv me me tab sis tawv zoo. Yog li, nws muaj cov kev muaj zog zoo heev thiab tuaj yeem ua kom pom los ntawm cov hau kev xws li curling, khoov, thiab stamping. Hom hlau no kuj pom tau zoo weldability. Tsawg -} Cov hlau carbon hlau nrog cov ntsiab lus muaj roj carbon tsawg muaj cov tshuab tsis zoo; Txawm li cas los xij, quenching kev kho mob tuaj yeem txhim kho lawv lub tshuab luam ntawv.

Vim tias vuam ntau dhau los, cov ntaub ntawv overheats lub workpieve lossis kev sib dhos dhau los ntawm ib qho kev sib tw ua ke ntev dhau los yog tsim kev sib koom ua ke thaum lub sijhawm hlawv - los ntawm kev tsis taus. Hlawv -} los ntawm muaj ntau yam nyob rau hauv phau ntawv vuam lossis submerged arc vuam, feem ntau tshwm sim hauv thawj weld kis lossis hauv pob tw pob qij txha. Nws yog txoj kev siv vuam tsis muaj peev xwm tso cai. Hlawv - dhau ntawm tsis yog cuam tshuam rau cov kab ntsig weld, thiab tseem muaj kev cuam tshuam nrog rau qhov chaw ntawm lub ntsej muag, thiab ua kom pom kev zoo nkauj, thiab khav theeb nyob ze ntawm Burned {}} los ntawm thaj chaw.