Nyob rau hauv laser vuam, kev tiv thaiv roj yuav cuam tshuam rau vuam txoj kev, weld zoo, weld qhov tob thiab weld dav. Feem ntau, tshuab hluav taws xob tiv thaiv yuav muaj txiaj ntsig zoo rau cov vuam, tab sis nws kuj tseem tuaj yeem ua rau muaj kev cuam tshuam tsis zoo.
1. Kev tshuab kom raug rau hauv cov roj tiv thaiv yuav zoo tiv thaiv lub pas dej welding kom txo lossis txawm tias tsis txhob oxidation;
2. Kev ua kom raug tshuab rau hauv cov roj tiv thaiv tuaj yeem txo cov txaws tawm hauv cov txheej txheem vuam;
3. Qhov raug tshuab rau hauv cov roj tiv thaiv tuaj yeem ua rau lub pas dej sib txuas ua kom sib npaug sib npaug, ua rau cov vuam sib sau ua ke thiab zoo nkauj;
4. Kev ua kom zoo ntawm kev tiv thaiv roj tuaj yeem txo cov nyhuv shielding ntawm cov hlau vapor plume los yog cov huab cua plasma ntawm laser, thiab ua rau kom siv tau zoo ntawm laser;
5. Kev tshuab hluav taws xob tiv thaiv zoo tuaj yeem txo qhov porosity ntawm vuam.
Tsuav yog hom roj, roj ntws thiab tshuab tshuab yog xaiv kom raug, cov nyhuv zoo tagnrho tuaj yeem tau txais.
Txawm li cas los xij, kev siv tsis raug ntawm cov roj tiv thaiv kuj tuaj yeem cuam tshuam rau vuam.
Cov teebmeem tsis zoo
1. Kev tshuab tsis raug ntawm cov roj tiv thaiv yuav ua rau tsis zoo weld:
2. Xaiv qhov tsis ncaj ncees lawm cov roj yuav ua rau cov kab nrib pleb hauv cov vuam thiab txo cov khoom siv ntawm cov vuam;
3. Xaiv qhov tsis ncaj ncees lawm lub tshuab nqus cov pa yuav ua rau muaj kev cuam tshuam loj heev ntawm weld oxidation (txawm tias tus nqi ntws loj dhau los yog me dhau), thiab kuj tseem tuaj yeem ua rau lub pas dej vuam hlau ua rau muaj kev cuam tshuam loj heev los ntawm kev quab yuam sab nraud, ua rau weld ntog los yog pwm tsis sib xws;
4. Xaiv txoj kev siv roj tsis raug yuav ua rau tsis ua haujlwm ntawm kev tiv thaiv ntawm cov vuam lossis txawm tias qhov pib tsis muaj kev tiv thaiv lossis muaj kev cuam tshuam tsis zoo rau kev sib txuas;
5. Tshuab hauv kev tiv thaiv roj yuav muaj qee yam cuam tshuam rau lub vuam qhov tob, tshwj xeeb tshaj yog thaum lub phaj nyias yog welded, nws yuav txo qhov vuam qhov tob.
Hom kev tiv thaiv roj
Feem ntau siv laser vuam tiv thaiv gases feem ntau yog N2, Ar, Nws, uas nws lub cev thiab tshuaj muaj zog sib txawv, yog li cov nyhuv ntawm cov vuam kuj txawv.
1. N2
Lub zog ionization ntawm N2 yog nruab nrab, siab dua li ntawm Ar thiab qis dua nws. Lub ionization degree ntawm N2 yog dav siv nyob rau hauv qhov kev txiav txim ntawm laser, uas yuav zoo dua txo qhov tsim ntawm cov ntshav plasma huab thiab yog li ua rau kom cov zoo siv npaum li cas ntawm laser.Nitrogen tuaj yeem hnov mob nrog aluminium alloy thiab carbon steel ntawm qhov kub thiab txias, ua nitride, uas yuav txhim kho lub brittleness ntawm weld, thiab txo toughness, uas yuav muaj kev cuam tshuam loj heev ntawm kev siv cov khoom siv nitrogen, yog li peb tsis tuaj yeem tiv thaiv kev sib koom ua ke. thiab carbon steel welds.
Cov nitrogen uas ua los ntawm cov tshuaj tiv thaiv ntawm nitrogen thiab stainless hlau tuaj yeem txhim kho lub zog ntawm kev sib koom ua ke, uas yuav ua rau muaj kev txhim kho ntawm cov khoom siv hlau vuam, yog li nitrogen tuaj yeem siv los ua cov roj tiv thaiv thaum vuam stainless hlau.
2. Ar
Ar ionization zog txheeb ze rau qhov tsawg kawg nkaus, nyob rau hauv cov nyhuv ntawm laser ionization degree yog siab dua, yog tsis conducive los tswj lub tsim ntawm plasma huab, yuav siv tau zoo ntawm laser tsim tej yam nyhuv, tab sis lub Ar kev ua si yog heev tsawg, nws yog ib qho nyuaj rau reacts nrog tej hlau, thiab Ar nqi yog tsis siab, ntxiv rau, qhov ntom ntawm Ar yog loj dua, yog qhov zoo dua los tiv thaiv peb. weld pas dej ua ke, yog li nws tuaj yeem siv tau raws li cov pa tiv thaiv roj.
3. Nws
Nws muaj lub zog ionization siab tshaj plaws, nyob rau hauv cov nyhuv ntawm laser ionization degree qis, tuaj yeem tswj tau qhov tsim ntawm cov huab cua hauv plasma, laser tuaj yeem ua haujlwm zoo hauv cov hlau, WeChat pej xeem naj npawb: micro welder, kev ua haujlwm thiab nws qis heev, yooj yim tsis hnov tsw nrog hlau, yog ib qho zoo vuam tiv thaiv roj, tab sis nws kim heev, cov roj tsis yog siv rau cov khoom siv los yog kev tshawb fawb loj heev. cov khoom.
Post lub sij hawm: Sep-01-2021
