Dab tsi yog Qhov Projection Weld Nut, Thiab Qhov Zoo Li Cas Nws Muaj Ntau Tshaj Qhov Weld Nut?

Projection welding yog ib txoj kev siv vuam zoo uas muaj peev xwm ua tau ntau qhov chaw vuam ib txhij, uas tuaj yeem siv los hloov arc vuam, brazing thiab riveting. Txoj kev no muaj cov yam ntxwv zoo kawg nkaus ntawm kev ua haujlwm ceev thiab tsis muaj lwm yam kev siv tshwj tsis yog hluav taws xob. Kab lus no feem ntau qhia txog qhov zoo thiab muaj feem cuam tshuam ntawm qhov projection vuam ceev piv nrogzoo tib yam vuam ceev.

I. Projection Welding txiv ntoo yog dab tsi?

Qhov projection vuam ceev yog tsuas yog siv rau vuam stamping qhov chaw ntawm cov hlau tsis tshua muaj carbon thiab cov hlau tsis tshua muaj hlau. Muaj ntau ntau hom projection welding. Ntxiv nrog rau daim ntawv projection welding, tseem muaj qhov projection vuam ntawm bolts, screws thiab lwm yam, hla hlau projection vuam, yeeb nkab projection vuam thiab daim ntawv T-hom projection vuam.

II. Qhov zoo thiab qhov tsis zoo ntawm Projection Vuam Ceev

(I) Qhov zoo ntawm Projection Vuam Ceev

1. Ntau lub ntsiab lus vuam tuaj yeem txuas tau ib txhij hauv ib lub voj voog ntawm lub tshuab vuam; Tus naj npawb ntawm cov ntsiab lus vuam uas tuaj yeem welded ib zaug yog nyob ntawm qhov tsis sib xws ntawm electrode quab yuam thiab vuam tam sim no uas lub tshuab vuam tuaj yeem siv rau txhua qhov projection.

2. Txij li cov vuam tam sim no yog tsom rau ntawm qhov projections thiab tsis muaj teeb meem shunt los ntawm cov ntsiab lus vuam uas nyob ib sab, qhov sib tshooj me me thiab qhov sib txawv me me tuaj yeem siv tau.

3. Txoj hauj lwm ntawm qhov projection vuam cov ntsiab lus yog qhov tseeb dua qhov chaw vuam cov ntsiab lus, thiab vim yog qhov loj ntawm qhov projections, qhov zoo ntawm qhov projection vuam cov ntsiab lus yog ruaj khov dua. Yog li ntawd, qhov loj ntawm qhov projection vuam cov ntsiab lus tuaj yeem ua me dua li qhov chaw vuam cov ntsiab lus.

4. Txij li qhov projections tuaj yeem teeb tsa rau ntawm ib feem, qhov vuam cov cim ntawm qhov chaw nthuav tawm ntawm lwm qhov tuaj yeem txo qis.

5. Qhov projection welding txais yuav cov electrodes loj loj, uas nws cov cua sov thiab hnav yog tsawg dua qhov chaw vuam electrodes, uas ua rau lub neej ntev ntawm cov electrodes, yog li txuag lub sij hawm rau electrode trimming thiab hloov thiab txo cov electrode tu nqi.

6. Txij li ntau cov ntsiab lus tuaj yeem welded ib txhij nrog qhov projections me me, welded Cheebtsam nrog me deformation tuaj yeem tau.

7. Qhov projection vuam tuaj yeem kov yeej nugget sib txawv, yog li nws tuaj yeem vuam qhov sib txawv nrog lub thickness piv txog 6: 1.

(II) Disadvantages of ProjectionVuam ceev

1. Qee zaum, cov txheej txheem ntxiv yuav tsum tau ua ua ntej ib lossis ntau qhov projections.

2. Thaum welding ob peb cov ntsiab lus vuam ib txhij nrog tib lub electrode, qhov kev sib raug zoo ntawm cov khoom ua haujlwm thiab qhov loj ntawm qhov projections (tshwj xeeb tshaj yog qhov siab) yuav tsum muaj qhov siab-precision tolerances los xyuas kom meej cov electrode quab yuam thiab vuam tam sim no, thiaj li ua kom cov khoom zoo ib yam ntawm txhua qhov vuam taw tes.

3. Thaum vuam ntau cov ntsiab lus vuam ib txhij, lub tshuab vuam siv hluav taws xob siab nrog lub tshuab hluav taws xob siab thiab cov neeg kho tshuab siab yuav tsum tau ua, thiab nws cov txheej txheem siab yuav tsum muaj kev ua haujlwm siab.

III. Cov yam ntxwv, qhov zoo thiab qhov tsis zoo ntawm vuam ceev

Lub vuam txiv ntoo yog cov txiv ntoo uas tsim nyog rau kev vuam sab nraud ntawm cov txiv ntoo. Nws yog feem ntau yog ua los ntawm cov ntaub ntawv weldable thiab muaj ib tug kuj loj thickness, uas yog haum rau vuam ua hauj lwm. Vuam yog sib npaug rau kev sib xyaw ob qhov sib cais rau hauv ib qho tag nrho: cov hlau yog melted los ntawm kub kub, sib tov, thiab ces txias kom tiav cov kev sib txuas. Alloys tuaj yeem muab ntxiv rau hauv nruab nrab, thiab kev sib txuas sab hauv cia siab rau lub zog molecular, nws lub zog feem ntau siab dua li ntawm niam txiv hlau.

Kev debugging ntawm vuam tsis yuav tsum tau ua raws li qhov loj ntawm vuam fusion, thiab vuam tsis xws luag raug tshem tawm los ntawm kev kho vuam tsis. Qhov zoo ntawm vuam yog ze ze rau kev kho ua ntej vuam, thiab impurities xws li plua plav thiab roj stains ntawm qhov chaw ntawm lub workpiece yuav tsum tau ntxuav.

(I) Qhov zoo: Kev sib txuas vuam muaj lub zog siab thiab ntau yam kev siv, thiab tuaj yeem siv rau kev sib txuas ntawm cov khoom sib txawv ntawm cov thicknesses.

(II) Qhov tsis zoo: qhov kub siab thaum lub sij hawm vuam yuav ua rau deformation ntawm cov khoom sib txuas, thiab kev sib txuas tsis tuaj yeem disassembled tom qab vuam; Qee cov hlau nquag siv (xws li txhuas, magnesium, thiab lwm yam) tsis tuaj yeem welded los ntawm cov qauv siv, xav tau cov khoom tiv thaiv lossis argon arc vuam, uas muaj cov kev xav tau siab ntawm kev siv tshuab thiab precision.

IV. Ntxiv qhov zoo ntawm Projection Vuam ceev tshaj Vuam ceev

Ntxiv nrog rau qhov zoo li hais saum toj no ntawm qhov projectionvuam ceev lawv tus kheej, piv nrog cov txiv ntseej, qhov projection vuam ceev kuj muaj cov txiaj ntsig hauv qab no:

1. Ntau cov ntsiab lus vuam tuaj yeem ua tiav ib txhij hauv ib lub voj voog vuam, uas tsis tsuas yog muaj kev ua haujlwm siab, tab sis kuj tsis muaj shunt cuam tshuam. Yog li ntawd, vuam cov ntsiab lus tuaj yeem npaj rau hauv qhov nqaim yam tsis muaj kev txwv los ntawm qhov sib nrug ntawm qhov taw tes.

2. The current density is concentrated on the projections, and the current density is high, so welding can be performed with a smaller current, and small nuggets can be reliably formed; thaum nyob rau hauv qhov chaw vuam, nws yog ib qho nyuaj rau tsim ib tug nugget me dua ib tug tej yam me me sib xws rau ib tug tej phaj thickness.

3. Cov phiaj xwm muaj qhov tseeb thiab qhov ntau thiab tsawg, thiab lub zog ntawm txhua qhov vuam yog sib xws. Yog li ntawd, rau ib tug muab lub zog yuav tsum tau, qhov luaj li cas ntawm qhov projection welding point yuav ua tau me dua qhov chaw welding point.

4. Loj ca electrodes raug saws, thiab qhov projections yog teem rau ntawm ib tug workpiece, uas yuav txo tau lub indentation ntawm exposed nto ntawm lwm yam workpiece; at the same time, the large flat electrodes have small current density and good heat dissipation, and the electrode wear is much less than that of spot welding electrodes, which greatly reduces the maintenance and repair costs of the electrodes.

5. Piv nrog rau qhov chaw vuam, qhov cuam tshuam ntawm cov roj stains, xeb, oxide nplai, coatings thiab lwm yam txheej txheej ntawm lub workpiece nto ntawm qhov projection vuam yog me dua, tab sis lub workpiece huv thiab huv si tuaj yeem tau txais kev ruaj khov dua vuam zoo.

Nyob rau hauv cov ntsiab lus, projection welding yog dav siv vim hais tias saum toj no-hais ntau yam zoo. Nws qhov tsis txaus yog tias yuav tsum muaj cov txheej txheem ntxiv rau stamping qhov projections, cov qauv electrode yog qhov nyuaj, thiab vim tias yuav tsum tau vuam ntau cov ntsiab lus vuam ib txhij, lub tshuab vuam siv hluav taws xob siab nrog lub siab electrode siab thiab cov cuab yeej siv siab yuav tsum tau ua.