Ua kom tiav Cov Txheej Txheem Rau Spot Welding Txheej Txheem

01.Spot vuam txheej txheem

Spot welding, raws li lub npe qhia, yog txheej txheem ntawm cov cua sov hauv zos thiab melting ob daim hlau, thiab tom qab ntawd siv lub zog rau recrystallize cov melted qhov chaw, thaum kawg ua tiav kev sib txuas ntawm cov hlau phaj. Hauv kev tsim khoom, qhov chaw vuam yog tsuas yog siv rau splicing, reinforcing, thiab txuas hlau los xij.

Spot welding feem ntau yog siv rau hauv cov hauv qab no:

1. Automotive manufacturing: yuav siv tau rau vuam lub cev Cheebtsam, chassis, cav hood, qhov rooj panels, thiab thav duab qauv. Tshwj xeeb tshaj yog nyob rau hauv kev sib tshooj thiab kho ntawm lub cev daim ntawv hlau stamping qhov chaw, qhov chaw vuam tshuab plays lub luag haujlwm tseem ceeb

2. Lithium roj teeb tsim: siv rau vuam qhov zoo thiab tsis zoo electrodes ntawm cov roj teeb kom ntseeg tau tias lawv muaj kev nyab xeeb thiab kev pabcuam lub neej.

3. Aerospace: dav siv rau vuam cov khoom tseem ceeb xws li dav hlau fuselage, tis, cav, thiab lwm yam.

4. Kev tsim khoom siv hauv tsev: feem ntau yog siv rau vuam thiab kho cov phaj nyias nyias. Cov khoom xws li cua txias, tub yees, tshuab ntxhua khaub ncaws, thiab lwm yam

5. Cov khoom siv hluav taws xob thiab hluav taws xob kev lag luam: Spot welding thev naus laus zis yog siv rau hauv kev sib txuas ntawm cov nyiaj sib cuag ntawm ntau lub keyboards thiab cov khoom siv hluav taws xob.

6. Lwm cov chaw tsim khoom lag luam: Ntxiv nrog rau cov teb uas tau hais los saum toj no, qhov chaw vuam tshuab kuj tau siv dav hauv cov qauv hlau vuam hauv kev lag luam xws li cov kav dej, kev tsim kho, nkoj, kev tsheb ciav hlau, thiab petrochemicals.

02. Yam ntxwv

Thaum lub sij hawm welding, qhov welded qhov chaw tsim ib tug ncej puab thiab yog compressed ntawm ob electrodes. Nws cov yam ntxwv tseem ceeb yog raws li nram no:

1. Ceev vuam ceev: Vim lub fact tias qhov chaw vuam tsuas yog heats lub zos kev twb kev txuas cheeb tsam thiab muaj ib tug luv luv lub sij hawm cua sov, lub vuam ceev yog ceev thiab cov efficiency ntau lawm.

2. Kev ruaj khov thiab txhim khu kev qha zoo: Thaum lub sijhawm vuam, lub sijhawm cua sov rau qhov chaw sib txuas yog luv heev, thiab qhov vuam ceev yog ceev, yog li lub tshav kub cuam tshuam cheeb tsam me me, qhov deformation ntawm qhov welded yog me me, thiab nws tsis yooj yim rau tawg. Lub caij no, vim qhov tseeb tias qhov chaw vuam tsuas yog siv hluav taws xob thiab tsis xav tau cov ntaub ntawv sau, flux, roj, thiab lwm yam., qhov vuam zoo yog ruaj khov thiab txhim khu kev qha.

3. High degree ntawm mechanization thiab automation: Qhov chaw vuam tshuab txais kev tswj hwm qhov system, uas tuaj yeem ua tiav cov khoom siv tas mus li thiab kev siv tshuab thiab txhim kho kev tsim khoom. Nyob rau tib lub sijhawm, qhov chaw vuam tshuab siv electrode siab rau vuam, uas tuaj yeem zam qhov yuam kev los ntawm kev tuav haujlwm thiab xyuas kom muaj kev ruaj ntseg thiab sib xws ntawm vuam zoo.

4. Kev siv zog tsawg: Cov tshuab vuam tshuab tau yooj yim rau kev khiav lag luam thiab muaj kev ua haujlwm siab thiab automation, ua rau cov neeg ua haujlwm qis dua.

5. Cov khoom siv hluav taws xob siab: Vim muaj qhov siab tam sim no thiab lub siab xav tau rau vuam nrog cov tshuab vuam tshuab, lub zog ntawm cov khoom siv kuj yog siab thiab tus nqi siab. Lub caij no, vim yog siv cov electrodes rau vuam hauv cov tshuab vuam tshuab, tus nqi ntawm cov khoom siv hluav taws xob kuj tseem siab.

6. Nws yog ib qho nyuaj rau kev sim tsis muaj kev puas tsuaj ntawm cov ntsiab lus vuam: vim lub sij hawm cua sov luv thiab vuam ceev ntawm qhov chaw vuam, tsis muaj kev puas tsuaj ntawm cov ntsiab lus vuam yog qhov nyuaj.

03. Cov txheej txheem ua haujlwm

Ua ntej vuam, qhov saum npoo ntawm lub workpiece yuav tsum tau ntxuav kom huv si. Txoj kev ntxuav feem ntau yog ntxuav cov kua qaub, uas yog thawj zaug pickling hauv rhuab sulfuric acid nrog ib tug concentration ntawm 10%, thiab ces yaug hauv dej kub. Cov txheej txheem vuam tshwj xeeb yog raws li hauv qab no:

(1) Ntxig lub workpiece sib koom ua ke ntawm lub sab sauv thiab sab electrodes ntawm qhov chaw vuam tshuab thiab clamp nws nruj nreem;

(2) Hluav taws xob yog siv los ua kom sov qhov chaw sib cuag ntawm ob lub workpieces, ua rau lub zos melting thiab tsim ib tug molten core;

(3) Khaws lub siab tom qab hluav taws xob hluav taws xob, tso cai rau lub molten core kom txias thiab solidify nyob rau hauv siab, tsim cov pob qij txha;

(4) Tshem tawm lub siab thiab tshem tawm lub workpiece.

04.Influence factor

Lub ntsiab tseem ceeb cuam tshuam ntawm vuam zoo xws li vuam tam sim no thiab lub zog lub sij hawm, electrode siab, thiab tam sim no diversion.

1. Lub sijhawm vuam tam sim no thiab lub zog

Spot welding tuaj yeem muab faib ua ob hom: kev qhia tshwj xeeb nyuaj thiab cov qauv muag muag, raws li qhov loj ntawm vuam tam sim no thiab qhov ntev ntawm lub sijhawm hluav taws xob. Cov kev qhia tshwj xeeb ntawm kev hla tam sim no nyob rau lub sijhawm luv luv yog hu ua qhov tshwj xeeb nyuaj, uas muaj qhov zoo ntawm cov khoom lag luam siab, lub neej ntev electrode, thiab me me deformation ntawm welded qhov chaw, thiab yog tsim rau vuam hlau nrog zoo thermal conductivity. Ib qho kev qhia tshwj xeeb uas siv cov tam sim no me dua rau lub sijhawm ntev yog hu ua cov lus qhia muag muag, uas muaj cov khoom lag luam qis dua thiab tsim nyog rau vuam hlau nrog kev nyiam rau quenching thiab hardening.

2. Electrode siab

Thaum qhov chaw vuam, lub siab siv rau lub workpiece los ntawm electrode yog hu ua electrode siab. Kev tsim nyog electrode siab tuaj yeem ua kom muaj kev sib cuag zoo ntawm cov hlau hauv qhov chaw vuam, txhawb kev hloov hluav taws xob thiab hlau fusion. Thaum lub siab siab, nws tuaj yeem tshem tawm qhov shrinkage thiab porosity uas yuav tshwm sim thaum lub sij hawm solidification ntawm cov tub ntxhais weld. Txawm li cas los xij, qhov txo qis hauv qhov tsis kam thiab qhov ceev tam sim no thaum lub vuam txheej txheem ua rau tsis txaus cua sov ntawm lub workpiece, txo qis hauv txoj kab uas hla ntawm cov tub ntxhais weld, thiab txo lub zog ntawm qhov sib koom ua ke. Qhov loj ntawm electrode siab tuaj yeem xaiv raws li cov hauv qab no:

(1) Cov khoom siv ntawm cov khoom siv welded. Qhov siab dua qhov kub-kub lub zog ntawm cov khoom, qhov ntau dua qhov xav tau electrode siab. Yog li ntawd, thaum welding stainless hlau thiab tshav kub-resistant steel, yuav tsum tau siv ib tug siab electrode siab tshaj thaum vuam uas tsis muaj carbon steel.

(2) Welding parameters. Qhov nyuaj ntawm vuam specification, qhov siab dua electrode.

3. Kev hloov pauv

Thaum qhov chaw vuam, qhov tam sim no ntws tawm sab nraud lub ntsiab vuam Circuit Court yog hu ua shunt. Kev hloov pauv txo qhov tam sim no ntws los ntawm qhov chaw vuam, ua rau cov cua sov tsis txaus thiab txo qis ntawm lub zog ntawm qhov vuam taw tes, uas cuam tshuam rau qhov vuam zoo. Cov yam ntxwv uas cuam tshuam rau qib kev hloov pauv feem ntau suav nrog cov hauv qab no:

(1) Vuam thickness thiab qhov sib txawv ntawm cov ntsiab lus vuam. Raws li qhov kev ncua deb ntawm cov pob qij txha nce, lub shunt kuj nce thiab qib ntawm shunt txo. Thaum siv qhov sib txawv ntawm qhov sib txawv ntawm 30-50mm, lub shunt tam sim no tso nyiaj rau 25% mus rau 40% ntawm tag nrho cov tam sim no, thiab cov degree ntawm shunt txo qis raws li cov thickness ntawm cov weldment txo.

(2) Deg mob ntawm welded Cheebtsam. Thaum muaj oxides los yog av nyob rau saum npoo ntawm qhov chaw welded, qhov kev sib cuag ntawm ob qhov chaw welded nce, thiab tam sim no dhau los ntawm qhov vuam cheeb tsam txo qis, uas yog, qhov kev hloov pauv nce. Lub workpiece tuaj yeem raug xaiv, sandblasted lossis polished.

05.Kev ceev faj txog kev nyab xeeb

(1) Lub ko taw hloov ntawm lub tshuab vuam yuav tsum muaj lub hau npog tiv thaiv kom tsis txhob muaj kev sib tsoo.

(2) Lub chaw ua haujlwm tom tsev yuav tsum tau nruab nrog lub baffle kom tiv thaiv kom tsis txhob tawg.

(3) Welders yuav tsum hnav lub teeb ci tiv thaiv tsom iav, hnab looj tes, khaub ncaws ua haujlwm, thiab lwm yam.

(4) Qhov chaw uas lub tshuab vuam tau muab tso rau yuav tsum tau qhuav, thiab hauv av yuav tsum tau npog nrog daim hlau tiv thaiv.

(5) Tom qab ua haujlwm vuam ua tiav, lub zog yuav tsum raug txiav tawm, thiab cov dej txias hloov yuav tsum tau txuas ntxiv rau 10 vib nas this ua ntej muab tua. Thaum qhov kub thiab txias qis, cov dej ntim hauv cov dej yuav tsum tau muab tshem tawm kom tsis txhob khov.