2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28
Kev sib txuas mus tas li ntawm cov khoom hlau yog cov txheej txheem vuam hauv nws tus kheej. Nyob rau tib lub sijhawm, lawv sim ua kom sov cov hlau nws tus kheej mus rau qhov kub thiab txias uas zoo rau cov txheej txheem tshwj xeeb. Tab sis kuj tseem muaj qhov txias txias ntawm vuam, thaum cua sov tsis siv, thiab cov khoom yog compressed los ntawm mechanical quab yuam. Vim li ntawd, kev sib txuas tshwm sim.
yam ntxwv ntawm cov txheej txheem vuam
Thaum sib txawv ntawm kev siv vuam, kev ua hlau tshwm sim los ntawm kev siv cov concentrated lossis concentrated zog ntws. Qhov saum npoo yuav tsum tsis pub dawb los ntawm cov av thiab oxides. Tsuas yog nyob rau hauv txoj kev no nws yuav muaj peev xwm vam tias yuav tau txais cov txiaj ntsig sib xws. Sedimentary siab - qhov no yog lub npe ntawm lub siab uas tshwm sim thaum vuam. Ua tsaug rau nws, ib qho kev deformation yog tsim ntawm qhov sib txuas, uas tso cai rau koj los txuas cov khoom. Nws yuav tsum tau ntxiv hais tias tsuas yog cov hlau nplaum heev muab lub peev xwm los siv hom vuam uas tsis muaj cua sov.
Vuam txheej txheem: hais txog kev faib tawm
Muaj ob txoj hauv kev uas cov hlau tuaj yeem ua ke thaum cua sov. Piv txwv li, thaum siv sediment siab, nws tsimyas deformation. Nyob rau hauv cov ntaub ntawv no, ib tug sab nraud quab yuam nyob rau hauv daim ntawv ntawm lub siab yog thov kom cov hlau yog deformed ntawm lub hlws ris. Cov hom vuam zoo li no xav tau cov hlau kom muaj lub zog ruaj khov. Tsis tas li ntawd, nyob rau hauv ntau qhov xwm txheej, preheating ntawm qhov chaw tuaj yeem lossis tsis tas yuav tsum tau ua. Qhov tseem ceeb tshaj plaws yog tias cov khoom siv hluav taws xob ntawm cov hlau tsis hloov tag nrho raws li kev cuam tshuam.
Melting as a method of welding
Hauv txoj kev no, cov khoom txuas nrog thaum cov hlau yaj. Cov txheej txheem no yog nqa tawm ntawm qhov chaw sib cuag hauv qhov chaw yuav tsum tau welded. Qee lub sij hawm muab cov hlau siv, qee zaum xws li cov khoom siv ntxiv tau muab xa nrog. Cov txheej txheem no yog siv, ntawm lwm yam, los ntawm qee hom arc vuam. Lub pouring ntawm molten hlau tshwm sim arbitrarily. Ib qho chaw weld pas dej ua ke yog tsim. Raws li cov hlau hardens, ib qho nyuaj weld yog tsim.
hom kev vuam
Thaum ntau cov txheej txheem siv tib lub tshav kub rau cov cua sov los yog melting, vuam tau muab faib ua hom. Piv txwv li, muaj hom fusion lossis siab vuam. Cov kev xaiv ntawm txhua yam yog ua ke rau hauv txoj kev. Piv txwv li, txoj kev vuam hluav taws xob tuaj yeem yog seam, qhov chaw, thiab pob tw. Cov hom tseem ceeb tau muab faib ua pawg raws li qhov chaw.
Cov ntaub ntawv ntxiv txog kev faib tawm
Hom lub zog siv kuj qee zaum dhau los ua lub hauv paus rau kev faib cov txheej txheem vuam rau ntau pawg. Yog li, paub qhov txawv ntawm hluav taws xob thiab rojvuam. Conventionally, piv txwv li, laser thiab ultrasonic vuam yuav xa mus rau hom hluav taws xob. Hauv qhov no, cov khoom siv tshwj xeeb yog siv los hloov hluav taws xob hluav taws xob, tom qab ntawd nws dhau los ua thermal. Nws yog hom no uas tso cai rau koj kom sov qhov tsim nyog rau qhov kub thiab txias.
Pom zoo:
Hom kev ncig xyuas thiab lawv cov yam ntxwv. Kev ua haujlwm thiab cov yam ntxwv ntawm cov haujlwm ntawm cov neeg ncig xyuas ncig xyuas
Tus neeg ncig xyuas muab ntau yam kev pabcuam mus ncig thiab ua kom yooj yim rau kev tshwj tseg cov kev pabcuam hauv lwm lub nroog thiab lub tebchaws, ua haujlwm rau cov haujlwm no. Nyob rau hauv lub tshav pob ntawm tourism kev pab cuam, nws occupies ib tug tshwj xeeb niche. Hauv tsab xov xwm peb yuav txiav txim siab txog hom kev ua ub no ntawm cov neeg ncig xyuas
Cov khoom tsis nyob hauv tsev: kev cai lij choj txhais, hom thaj chaw, lawv lub hom phiaj, cov ntaub ntawv tswj hwm thaum lub sijhawm sau npe thiab cov yam ntxwv ntawm kev hloov chaw nyob rau hauv cov chaw tsis nyob
Cov kab lus txiav txim siab lub ntsiab lus ntawm qhov chaw tsis nyob hauv tsev, nws cov yam ntxwv tseem ceeb. Yog vim li cas rau qhov muaj koob meej loj hlob ntawm kev tau txais cov chav tsev nrog kev pom rau lawv qhov kev hloov pauv tom ntej mus rau qhov chaw tsis nyob hauv tsev tau nthuav tawm. Cov lus piav qhia ntawm cov yam ntxwv ntawm kev txhais lus thiab cov nuances uas yuav tshwm sim hauv qhov no tau nthuav tawm
Cov yam ntxwv thiab cov yam ntxwv ntawm cov kev pabcuam hauv tsev so, tshwj xeeb thiab cov ntsiab lus
Kev lag luam tsev so yog ib ceg ntawm kev tos txais qhua. Cov ntsiab lus thiab cov yam ntxwv ntawm cov kev pabcuam hauv tsev so raws li cov khoom lag luam ntawm lub tsev so yog vim muaj kev lag luam zoo ntawm cov lag luam kev lag luam uas xav tau ntawm cov neeg siv khoom uas xav tau cov xwm txheej tsim nyog rau kev pab thiab khoom noj
Yam koj yuav tsum tau ua haujlwm hauv tsheb tavxij: cov ntaub ntawv tsim nyog thiab cov cai, cov cai thiab kev cai lij choj. Cov lus teb thiab cov lus qhia los ntawm cov neeg tsav tsheb tavxij, cov neeg siv khoom thiab cov neeg xa khoom
Raws li ntau tus neeg caij tsheb, txoj haujlwm ntawm tus tsav tsheb tavxij yog qhov yooj yim tshaj plaws. Koj zaum, mloog suab paj nruag zoo nkauj thiab tsav tsheb rov qab los. Thiab lawv muab nyiaj rau koj. Tab sis qhov no tsuas yog sab nraud ntawm lub npib. Qhov rov qab yog ntau dua rosy. Peb yuav tham txog nws hauv kab lus no. Thiab peb tseem yuav qhia txog yam koj xav tau ua haujlwm hauv tsheb tavxij
Flux rau vuam: lub hom phiaj, hom vuam, flux muaj pes tsawg leeg, cov cai ntawm kev siv, GOST cov cai, qhov zoo thiab qhov tsis zoo ntawm daim ntawv thov
Qhov zoo ntawm cov vuam yog txiav txim siab tsis yog los ntawm lub peev xwm ntawm tus tswv los npaj lub arc kom raug, tab sis kuj los ntawm kev tiv thaiv tshwj xeeb ntawm thaj chaw ua haujlwm los ntawm kev cuam tshuam sab nraud. Tus yeeb ncuab tseem ceeb ntawm txoj hauv kev los tsim kom muaj kev sib txuas ntawm cov hlau uas muaj zog thiab ruaj khov yog cov huab cua puag ncig ntuj. Lub vuam yog cais tawm los ntawm cov pa oxygen los ntawm cov flux rau vuam, tab sis qhov no tsis yog nws txoj haujlwm xwb
