Vuam Txoj Kev Rau Excavator Adapter

Vuam txoj kev rau Excavator adapter

Qhov no yog ib qho teeb meem tshwj xeeb thiab tseem ceeb heev. Vuam lub excavator hniav rooj (tseem hu uaadapter) yog ib txwm muaj siab -lub zog steel, tuab- phaj qauv vuam txheej txheem, yuav tsum tau muaj siab precision thiab ncaj qha cuam tshuam rau lub excavator lub neej kev pab cuam thiab kev nyab xeeb kev ua hauj lwm.

 

I. Cov Ntsiab Cai
Lub adapter thiab lub thoob phab ntsa feem ntau yog ua los ntawm siab - lub zog hnav - cov hlau tsis muaj zog lossis nruab nrab - cov pa roj carbon siab, uas muaj qhov tsis zoo weldability thiab rhiab rau cov cua sov nkag.

Strength Matching: High-lub zog, qis- hydrogen vuam cov ntaub ntawv yuav tsum tau siv.

Kev Tiv Thaiv Kev Txhaum Cai: Tus yuam sij yog preheating, tswj qhov kub ntawm interlayer, thiab maj mam txias tom qab vuam los tiv thaiv qhov txias tawg thiab hydrogen -induced cracking.

II. Ua ntej -Vuam Kev Npaj (Crucial)
Xyuas kom lub excavator nres ruaj khov thiab lub thoob yog ruaj khov.

Tshem tawm cov khoom siv hluav taws xob los ntawm qhov chaw thiab hnav cov khoom tiv thaiv tsim nyog (lub ntsej muag lub ntsej muag, hnab looj tes, khaub ncaws tiv thaiv hluav taws, thiab lwm yam). Kev tu kom huv: Siv lub kaum ntse ntse, txhuam hlau, lossis carbon arc gouging kom tshem tawm xeb, roj, xim, qub weld slag, thiab av los ntawm qhov chaw weld thiab tsawg kawg 20mm nyob ib ncig ntawm nws kom txog thaum cov hlau ci tuaj. Qhov no yog qhov tseem ceeb los tiv thaiv porosity thiab tawg.

Kev Npaj Beveling: Yog tias hloov cov phaj qub qub, kom huv si zom cov seem qub qub qub.

Kev sib dhos kom raug (feem ntau yog 1-3mm) yuav tsum tau sab laug ntawm cov hniav tshiab thiab cov phaj phab ntsa, thiab ib qho beveling (feem ntau yog ib qho -sided V-puab lossis U-puab) yuav tsum tau ua raws li cov phaj tuab kom ntseeg tau tias muaj kev nkag mus tag nrho. Lub kaum sab xis yog feem ntau ntawm 30℃thiab 45 degree.

Preheating: Nov yog kauj ruam yuav tsum tau ua! Rau siab -lub zog hnav- cov hlau tsis muaj zog, qhov kub ua ntej yog feem ntau ntawm 150℃thiab 250℃.

Qhov ntsuas kub tshwj xeeb yuav tsum tau txiav txim siab raws li cov khoom siv qib thiab tuab (saib rau hauv phau ntawv qhia khoom). Piv txwv li, Hardox 450 (40mm tuab) feem ntau yuav tsum tau preheating kub ntawm kwv yees li 150 degree.

Txoj kev: Siv lub nplaim taws los yog daim pam cua sov kom sib npaug ntawm thaj tsam ntawm tsawg kawg 100mm ntawm ob sab ntawm qhov chaw vuam.

Kev Ntsuas: Siv lub ntsuas qhov ntsuas kub los yog ntsuas kub ntsuas ntsuas qhov ntsuas kub ntawm lub hauv paus ntawm bevel kom ntseeg tau tias qhov ntsuas kub tau mus txog.

III. Kev xaiv cov khoom siv vuam thiab cov khoom siv

Welding Material Xaiv:

Nyiam: Tsawg-hydrogen flux-cored vuam hlau (piv txwv li, E71T-1CJH4, ua raws li AWS cov qauv), siv cov roj tiv thaiv vuam. Qhov no yog tam sim no feem ntau siv thiab siv tau zoo.

Xwb: Tsawg-hydrogen vuam electrodes (piv txwv li, lub teb chaws tus qauv electrodes nrog lub zog sib xws J607, J707, thiab lwm yam, los yog E7018/AWS standard). Tsim nyog rau qhov chaw uas muaj roj shielded welding nyuaj los yog rau me me - kho me me.

Tseem ceeb: Cov khoom siv vuam yuav tsum qhuav! Vuam electrodes yuav tsum nruj me ntsis raws li cov lus qhia (xws li, ci ntawm 350℃rau 1 teev), thiab siv tam sim ntawd tom qab, muab tso rau hauv ib lub thawv insulated. Vuam hlau yuav tsum tau qhuav.

IV. Vuam txheej txheem tswj

Tack Welding: Ua ntej kev siv vuam, ua ob peb lub zog tack welds ntawm ob qho kawg thiab hauv nruab nrab ntawm lub rooj zaum iav siv tib txoj kev raws li kev siv vuam, kwv yees li 20-30mm ntev.

Tack welds kuj xav tau preheating thiab tu.

Multi- txheej, ntau- hla vuam: Tsis txhob sau lub bevel tag nrho ib zaug! Multi- txheej, multi- hla vuam yog yuav tsum tau.

Weld lub hauv paus dhau ua ntej kom ntseeg tau tias zoo hauv paus fusion.

Ua tib zoo ntxuav cov slag thiab spatter los ntawm txhua qhov txuas tom ntej (tshwj xeeb tshaj yog thaum siv cov welding rods).

Tswj qhov kub ntawm qhov sib cuam tshuam (interpass kub), feem ntau tsis tshaj 250 degree. Yog tias qhov kub thiab txias dhau lawm, nres thiab cia nws txias rau qhov kub thiab txias ua ntej txuas ntxiv vuam.

Vuam Sequence: Rau welds ntev dua, siv segmented rov qab - vuam txoj kev los yog symmetrical hla- vuam txoj kev los faib cov cua sov thiab txo deformation thiab kev nyuaj siab concentration.

Weld los ntawm nruab nrab ntawm ob qhov kawg, los yog weld symmetrically ntawm sab laug mus rau sab xis.

Ceeb toom: Deformation:

Vuam lub adapter tuaj yeem yooj yim ua rau thaj chaw deformation ntawm lub thoob phab ntsa phaj. Txo qhov no los ntawm qhov tsim nyog vuam ib ntus thiab fixture fixation. V. Ncej -Kev kho Weld

Ncej - Weld Slow Cooling:

Tam sim ntawd tom qab vuam, nruj nreem qhwv qhov chaw welded nrog insulating paj rwb (xws li asbestos pam) kom nws txias maj mam mus rau chav tsev kub. Qhov no yog ib kauj ruam tseem ceeb hauv kev tso cov kev ntxhov siab thiab tiv thaiv kev tawg qeeb.

Kev quab yuam txias nrog dej los yog cua compressed yog txwv tsis pub kiag li.

Tshaj tawm -Kev Kho Mob Kub Kub (yeem tab sis pom zoo):

Rau qhov tshwj xeeb tuab los yog nruj heev, los yog vuam nyob rau hauv qhov chaw txias heev, kev kho kom tshem tawm cov hydrogen tuaj yeem ua tau: Tam sim ntawd tom qab vuam, ua kom sov thaj tsam weld mus rau 200-250 degree, tuav ntawm qhov kub ntawm 2-4 teev, thiab tom qab ntawd txias maj mam.

Weld Inspection: Tom qab txias rau hauv chav tsev kub, ntxuav tawm weld spatter.

Kev soj ntsuam pom: Tshawb xyuas qhov porosity, undercut, crater tawg, thiab lwm yam.

Kev Txhim Kho thiab Kev Ntsuas: Txhim kho lub thoob cov hniav thiab xyuas kom haum zoo, paub meej tias cov vuam tsis muaj qhov txawv txav.

Summary and Warnings

Qhov tshwm sim ntawm cov txheej txheem vuam tsis zoo: vuam tsis raug tuaj yeem ua rau tawg hauv qhov vuam lossis cua sov- thaj tsam cuam tshuam. Raws li kev cuam tshuam hnyav, cov kab nrib pleb no tuaj yeem nthuav tawm sai sai, ua rau tag nrho cov iav vaj tse kom tsim kua muag thiab tshem tawm, ua rau muaj kev nyab xeeb loj thiab kev poob nyiaj ntau dua.

Tsis muaj preheating, tu tsis txaus, thiab kev siv cov vuam zoo tib yam yog peb feem ntau ua rau vuam tsis ua hauj lwm.

Yog tias koj tsis yog tus kws tshaj lij welder, nws tau pom zoo tias qhov vuam ntawm cov khoom siv tseem ceeb no yuav raug xa tawm mus rau cov kws tshaj lij lossis cov khw tshwj xeeb.

Kev nyab xeeb thiab cov txheej txheem vuam txheej txheem yog qhov tseem ceeb los ua kom cov cuab yeej siv tau ntev thiab kev nyab xeeb ntawm cov neeg siv khoom.