1.Vim li cas cov qhov dej erosion tuag mus tob tob?
Kev ntxhov siab Concentration Effects: Pitfalls yog microscopic notches; Thaum lub sij hawm ntsuas tensile, qhov kev ntxhov siab concentration ntawm cov hauv paus hniav tuaj yeem ncav cuag 3-5 npaug ntawm tus nqi ib txwm. Txawm hais tias cov khoom elongation tau txais, cov kab mob hauv zos tuaj yeem dhau qhov txwv tam sim, ua rau tawg.
Accelerated Die Wear: Cov txheej xeb yog Fe₂O₃ / Fe₃O₄, nrog Mohs hardness ntawm 5.5-6.5 (lub substrate tsuas yog 4.5). Qhov no yog sib npaug rau kev thov txheej abrasive rau steel phaj. Tom qab ntau txhiab punches, qhov tuag ntug ua npub, ua rau burrs thiab tawg.
Irreversible Thickness Poob: Qib C thiab siab dua xeb yog feem ntau nrog cov thinning ntawm 0.02-0.05mm. Rau 1.0mm phaj, qhov no sawv cev rau 2-5% kam rau ua. Qhov tuag clearance yog tsim los ntawm nominal thickness; qhov chaw thinned tsis tuaj yeem muaj, ua rau wrinkling thiab tawg.
2.Qhov kev daws teeb meem twg yog qhov tsim nyog rau Qib A nto xeb + tsis yog- pom qhov chaw?
Tsis muaj xeb yuav tsum tau tshem tawm, mus ncaj qha nrog stamping (tab sis kev hloov pwm yog tsim nyog).
Cov txheej txheej txheej xeb yuav ua rau qee qhov tev tawm thaum lub sij hawm stamping, tsis cuam tshuam rau txoj kev tsim, tab sis tsuas yog cov weld conductivity (yuav tsum tau sib tsoo tom qab).
Cov lus pom zoo ua haujlwm: Txo qhov nrawm nrawm los ntawm 10-15%, siv cov txheej tiv thaiv burring rau pwm, thiab ua cov tshuaj tiv thaiv xeb tom qab stamping.
3.Dab tsi yog cov kev xaiv rau kev tshem tawm xeb tawm nrog lub sijhawm siv 48-teev?
Kev Siv Tshuaj: Organic acid xeb tshem tawm (VCI-708 hom), txhuam los yog tsau. Hydrochloric acid / sulfuric acid yog nruj me ntsis txwv tsis pub-muaj zog acids yuav nkag mus rau hauv cov ciam teb, ua rau hydrogen embrittlement thiab ncua kev tawg thaum lub sij hawm stamping.
Mechanical Method: Nylon abrasive txhuam cov menyuam (180-}240 mesh), polishing qhuav, nrog kev tshem tawm ib leeg tswj kom tsawg dua lossis sib npaug li 0.003mm.
Kab Liab: Abrasive log sib tsoo thiab xuab zeb blasting yog nruj me ntsis txwv tsis pub-lawv yuav ua rau daim ntawv zoo thiab qhov roughness, ua rau muaj kev tiv thaiv thaum lub sij hawm stamping.
4.Lub sijhawm twg peb yuav tsum ua cov khoom ncaj qha raws li cov khoom seem lossis xa rov qab yob los ntawm kev pom zoo?
Tsis txhob sim hla txoj kab rov qab: Cov txiaj ntsig tshawb pom tau pom tseeb tias 1.0mm nyias daim hlau tsis tshua muaj siab tshaj - etching thiab hlawv los ntawm thaum dhau los ntawm cov kab pickling, thiab tus nqi poob yog tswj tsis tau.
Tsis txhob siv cov ntaub ntawv tsis zoo: Txawm hais tias txias - cov phaj dov nrog etched pits tau ua rau hauv qhov chaw, lawv lub neej qaug zog tau txo qis, thiab muaj kev pheej hmoo rov qab yog tias lawv siv hauv cov khoom siv hauv tsheb.
5.Ntawm qhov xwm txheej twg koj yuav tsum tsis kam lees txais pob?
Kev xeb tshwm sim nyob rau hauv nruab nrab ntawm cov hlau kauj (tsis yog thaum pib lossis thaum xaus) qhia tias cov dej nkag los yog cov condensation tau nkag mus rau hauv cov tub ntxhais, ua rau lub hauv paus corrosion tsis tuaj yeem tswj tau.
Kev cog lus rau "re- dhau txoj kab pickling" nrog xeb tam sim no yog kev cog lus txaus ntshai los ntawm tus neeg tsis tsim nyog; lub pickling pass tus nqi rau 0.8-1.5mm txias-dov los xij yog tsawg heev.
Rau qhov sib sib zog nqus- kos cov khoom seem (xws li cov roj tso tsheb hlau luam thiab cov khoom siv clutch)- cov khoom no muaj cov kev cai nruj rau qhov txuas ntxiv; rusted nplooj ntawv yog seem thiab yuav tsum tsis muaj kev ntsuas qib.