Tin vuam yog ib hom vuam txheej txheem uas melts cov khoom siv los ntawm cov cua sov, uas feem ntau plays lub luag hauj lwm ntawm kev sib txuas ntawm qhov chaw ntawm lub welded ib feem. Nws cov ntsiab lus melting yog 232 ° C. Lub melting point ntawm stainless hlau yog ntau dua, feem ntau siab tshaj 1400 ° C. Qhov no txhais tau hais tias nyob rau hauv high kub, muaj ib tug tseem ceeb kub txawv ntawm tin thiab stainless hlau. Qhov no kuj yog vim li cas vim li cas feem ntau cov qauv ntawm stainless hlau nyob rau hauv kev ua lag luam tsis tuaj yeem welded nrog tin, thiablaser tin weldingkuj tsis tuaj yeem ua haujlwm. Vim tias cov yam ntxwv, kev txwv melting thiab lub zog ntawm lub hauv paus hlau thiab cov khoom siv vuam sib txawv.
Stainless hlau yog cov hlau uas nws cov khoom tseem ceeb xws li hlau, chromium, npib tsib xee, manganese thiab lwm yam. Nyob rau saum npoo ntawm stainless hlau, feem ntau yog nyias txheej ntawm chromium oxide, nws thickness tsuas yog ob peb nanometers. Cov txheej txheej oxidation no yog txheej tiv thaiv tseem ceeb ntawm cov hlau tsis muaj steel, uas tuaj yeem tiv thaiv qhov chaw ntawm stainless hlau los ntawm oxidation corrosion. Nyob rau tib lub sijhawm, lub hardness ntawm chromium oxide txheej yog siab heev, uas tuaj yeem tiv thaiv cov tshuaj tiv thaiv ntawm cov khoom siv sab nraud thiab cov hlau tsis muaj steel. Tsis tas li ntawd, cov khoom siv tshuaj lom neeg ntawm tin thiab stainless hlau kuj txawv. Tin yog ib qho tshuaj acidic uas tsim cov tshuaj tiv thaiv tshuaj thaum nws los rau hauv kev sib cuag nrog cov kua qaub thiab cov kua qaub. Stainless hlau muaj cov kua qaub zoo, txawm tias nws nyob rau hauv kev sib cuag nrog cov kua qaub, yuav tsis muaj cov tshuaj tiv thaiv pom tseeb.
Yog li ntawd, lub hauv paus ntsiab lus ntawm stainless hlau uas tsis yog-stick tin yog tias cov txheej txheem tiv thaiv ntawm cov hlau tsis huv tuaj yeem tiv thaiv cov hlau tsis zoo ntawm oxidation corrosion thiab tiv thaiv cov tshuaj tiv thaiv ntawm cov khoom siv sab nraud thiab stainless hlau, thiab qhov sib txawv ntawm lub cev. thiab cov khoom siv tshuaj lom neeg ntawm tin thiab stainless hlau yuav ua rau tsis muaj adhesion ntawm ob, uas ua rau tsis muaj adhesion. Cov no yog cov laj thawj tseem ceeb vim li cas cov hlau tsis muaj steel feem ntau tsis tuaj yeem welded nrog tin.
1. Yuav ua li cas stainless hlau yuav welded nrog tin?
(1) Vuam ntau ntawm tin vuam. Tsuas yog ib feem ntawm cov hlau muaj qhov zoo weldability, uas tuaj yeem txuas nrog tin vuam. Feem ntau, tooj liab thiab nws cov alloys, kub, nyiaj, zinc, npib tsib xee thiab lwm yam muaj qhov zoo weldability, thaum txhuas, stainless hlau, cam khwb cia hlau thiab lwm yam tsis zoo heev, thiab feem ntau yuav tsum tau siv tshwj xeeb flux txoj kev weld.
(2) Welding stainless hlau muaj cov cai nruj rau tin solder. Cov khoom siv hlau tsis yog tus qauv lossis impurities tshaj tus qauv yuav cuam tshuam rau qhov zoo ntawm cov khoom siv, tshwj xeeb tshaj yog cov ntsiab lus ntawm qee qhov impurities, xws li zinc, aluminium, cadmium, thiab lwm yam. Txawm tias 0.001% cov ntsiab lus yuav cuam tshuam rau cov wettability. thiab fluidity, thiab txo qhov zoo ntawm vuam.
(3) Rau kev vuam ntawm cov hlau tsis muaj steel, feem ntau yuav tsum tau siv cov fluxes tshwj xeeb thiab txoj hauv kev los vuam.
Stainless hlau soldering tsuas tuaj yeem ua qhov kev tiv thaiv zoo li kev sib khi, thiab tsis tuaj yeem ua tiav cov khoom siv vuam. Stainless hlau welding tseem yog laser vuam. Sib txawv ntawm laser tin welding, stainless hlau laser welding yog ib txoj kev sib txuas uas siv lub teeb ci laser hauv zos kom sov lub workpiece mus rau qhov kub thiab txias, kom cov hlau nto vaporizes los ua cov txheej txheem metallurgical, thiab qhov kub tuaj yeem ncav cuag ntau dua 1400. degree. Nws cov yam ntxwv yog: tsis sib cuag cua sov hom, tsis muaj thermal deformation; Kub thiab sijhawm tuaj yeem tswj tau los txhim kho cov khoom zoo; Txo cov nqi tsim khoom; Nws tsim nyog rau kev sib txuas lossis kho ntawm qhov chaw ntawm cov khoom sib txawv (xws li carbon steel, alloy steel, thiab lwm yam). Guosheng stainless hlau laser vuam tshuab yog dav siv nyob rau hauv kev lag luam automotive, aerospace teb thiab txhua yam khoom kho thiab lwm yam teb.
2. Dab tsi yuav tsum xyuam xim rau stainless hlau vuam?
(1) Vim tias cov yam ntxwv vuam ntawm cov hlau tsis muaj thermal conductivity, kub yaj, thiab cov kab sib txuas loj loj, yog li cov txheej txheem vuam muaj teeb meem ntau dua, thiab yuav tsum coj cov txheej txheem vuam sib txuas kom zoo.
(2) Cov dej txaws seem yuav tshwm sim thaum vuam, yog li peb yuav tsum ua raws li kev tiv thaiv tsim nyog, xws li hnav lub ntsej muag lub ntsej muag thiab lub kaus mom hlau, txhawm rau ua kom peb muaj kev nyab xeeb.
(3) Cov txaws yuav tsum tau ua kom zoo thaum vuam. Cov khoom no yooj yim heev los txuas rau txheej txheej ntawm cov hlau tsis muaj steel, uas yuav ua rau lub sij hawm luv luv ntawm cov hlau tsis muaj steel, thiab nws yog ib qho tsim nyog yuav tsum tau siv cov tshuaj tiv thaiv txaws ntawm lub qhov ncauj vuam ua ntej vuam.
(4) Thaum vuam, yog tias kev ua haujlwm tsis tsim nyog, nws yooj yim heev kom tawm qhov tsis xws luag ntawm txheej txheej, xws li cov yeeb yaj kiab tiv thaiv puas, yog li cov vuam xav tau coj cov arc hauv txoj kev vuam thiab sib xyaw ua ke. rau hauv qhov kis.
Los ntawm cov saum toj no peb tuaj yeem pom tias laser tin vuam tsis tuaj yeem vuam stainless hlau, txawm tias qee qhov tshwj xeeb ntawm daim ntawv stainless hlau tuaj yeem siv tau, tab sis tsuas yog nyob rau hauv kev sib khi tiv thaiv ntawm stainless hlau. Nws yog ib qho tsim nyog yuav tsum xaiv lub tshuab vuam uas tuaj yeem ncav cuag cov hlau cladding, thiab xaiv lub tshuab tsis siv neeg hlau tsis siv neeg laser vuam, uas tuaj yeem txo qhov poob los ntawm kev ua haujlwm tsis raug thiab zam cov teeb meem ntawm kev nrhiav neeg ua haujlwm.