The surface quality of Q195 materials after cold processing (such as cold bending, stamping, cold rolling, and cold drawing) directly affects the product's appearance, corrosion resistance, and subsequent processing performance (such as painting and welding). Ua kom muaj kev ua tau zoo ncaj qha yuav tsum muaj kev tswj hwm kev ua haujlwm hla peb theem: pretreatment, txheej txheem tswj, thiab tshaj tawm {2} {2}. Kev ntsuas tshwj xeeb yog raws li hauv qab no:
1. Nto Nto Pretreatment Ua Ntej Ua: Tshem tawm cov xwm txheej pib
Q195 cov ntaub ntawv yuav muaj nplaim deg xws li nplai, xeb, thiab roj stains ua ntej ua kom txias. Cov tsis xws luag no tuaj yeem loj thaum ua (piv txwv, ntsuas tuaj yeem nias rau saum npoo av, ua cov pits). Yog li ntawd, pretreatment yog qhov tseem ceeb:
Xeb thiab teev Tshem Tawm:
Rau cov ntaub ntawv nrog xeb lossis nplai, kua qaub tu (nrog cov roj dolochloric acid lossis sullburic accts tuaj yeem siv kom tiav cov npoo oxide txheej, ua rau cov khoom huv. Tom qab cov kua qaub huv si, yaug nrog dej huv thiab nruab nrab ntawm kev daws teeb meem los tiv thaiv cov khoom muaj sia ntawm corroding saum npoo.
Me me rust kuj tseem tuaj yeem raug tshem tawm ntawm cov neeg kho tshuab polishing (xws li nrog cov log tuab lossis lub log hlau) kom ntseeg tau tias tsis muaj xeb xoob. Deburring thiab smoothing:
Ua ntej ua haujlwm txias, tshawb xyuas cov ntawv sau rau burrs (xws li cov npoo ntawm sheared steel phiaj). Siv cov ntaub ntawv, cov xuab zeb, lossis cov khoom siv ua deb tawm los tiv thaiv cov burrs los ntawm kev nias rau saum npoo thiab ua rau cov khawb hauv lub cev.
Degreas:
Roj tuaj yeem sib kis xws li Rolling roj thiab xeb Tiv thaiv cov roj tiv thaiv ntawm cov khoom saum npoo av tuaj yeem tsis zoo (nce kev sib txhuam ib ce). Ua ntej kev ua tiav, so lossis ntxuav saum npoo nrog tus neeg sawv cev tu (xws li kerosene lossis cov xab npum alkaline) kom ntseeg tau kom huv si.
Ii. Txheej Txheem Tswj: Txo cov tsis xws luag tshiab
Thaum lub sij hawm ua haujlwm txias, saum npoo tsis xws luag tshwm sim los ntawm kev sib txhuam puas tsuaj, kev nyuaj siab concentration, thiab pwm ua paug. Cov hom phiaj tswj kev tswj hwm yuav tsum muaj:
Txhim kho pwm tsim thiab cov xwm txheej:
Pwm Nto Ua tiav: pwm (xws li Rolling dies thiab sib zog ua kom tiv thaiv kom tsis txhob muaj qhov chaw ua haujlwm) yuav tsum tau sib npaug ntawm cov neeg ua haujlwm) yog tshwm sim los ntawm kev ua haujlwm ntawm pwm (xws li khawb thiab pits). Pwm Khoom thiab Hardness: Siv cov ntoo {{4 4}} Cov ntaub ntawv tiv thaiv (xws li CRE12 Moulde surface surface surface surface surface surface surface surface surface surface surface surface surface surface surface surface surface surface surface surface surface surface surface surface surface surface surface surface surface່ານ los ntawm cov khib nyiab tsim los ntawm pwm hnav.
Zam kev ua yeeb yaj kiab / Tshuav: thaum lub sijhawm txias thiab cov ntaub ntawv txias, cov ntawv sau cov hlau lossis cov pwm ua kom cov pwm tuaj yeem khawb qhov chaw ua haujlwm. Thaum lub sij hawm stamping, "Tshuav" (cov khoom ua los ntawm cov pwm) tuaj yeem ua rau lub ntsej muag saum npoo. Yuav tsum tau ntxuav puab tu tas li yog qhov tsim nyog, thiab yog tias tsim nyog, chrome plating yuav tsum tau thov rau pwm nto los txhim kho cov khoom tiv thaiv thiab tso tawm cov khoom.
Tsim nyog siv cov roj nplua nyeem:
Lubricants tsis tsuas yog txo cov kev sib txhuam tab sis kuj ua cov yeeb yaj kiab tiv thaiv nruab nrab ntawm cov khoom siv thiab cov pwm "(xws li rab phom txias) tshwm sim los ntawm kev sib chwv hlau ncaj qha. Cov roj nplua nyeem cov roj ntau yuav tsum tau xaiv raws li txoj kev ua:
Rau stamping thiab txias dabtsi yog khoov: siv qis qis - viscosity stamping roj (xws li cov roj av me me, thiab tsis txhob muaj lub zog siv lub zos tsis zoo.
Rau cov duab kos thiab cov cua txias: Siv siab - viscosity roj lossis emulsion rau nws cov khoom muaj zog, thiab tiv thaiv cov khib nyiab loj los ntawm cov npoo hlau. Nco tseg: Cov roj nplua nyeem yuav tsum huv thiab tsis muaj kev cuam tshuam ntawm kev tsis txaus ntseeg. Yog tias nws muaj cov khoom xws li cov ntaub ntawv hlau, nws yuav "zom" thaum lub sijhawm ua, ua rau pitting lossis khawb.
Kev tswj cov khoom tsis ua kom tsis txhob muaj kev cuam tshuam ntau dhau los:
Ntau dhau ntawm kev ua haujlwm lossis kev kub ceev thaum ua haujlwm txias tuaj yeem ua rau nto "wrinkling" (xws li ntug) lossis "tsis muaj zog ntxiv). Qhov deformation yuav tsum tau tsim nyog tswj (piv txwv li, ib qho {% thaum lub sijhawm sib tw yuav tsum tau tswj hwm ntawm 30-60 m / min).
Thaum lub sijhawm dabtsi yog khoov, lub pwm vojvoog txias ntawm cov khoov yuav tsum muaj ntau dua los yog sib npaug rau cov ntaub ntawv tuab los yog micrmacks tshwm sim los ntawm kev ntxhov siab hauv zos. III. Post -} Ua cov khoom ntoj ntoj ntom nti: Kho thiab kev tiv thaiv
Txawm tias muaj kev tswj hwm nruj, tsis xws luag (xws li cov khawb thiab cov khoom siv roj nplua thiab seem ua ke los ntawm posts {{} kev ua:
Deg Tu:
Tshem tawm cov khoom siv roj nplua nyeem rov qab: so saum npoo nrog tus neeg sawv cev tu (xws li roj av lossis dej cawv los txhawm rau txhawm rau txhawm rau lossis cov khaub ncaws txias thaum lub sijhawm dhau los lossis vuam.
Tshem tawm Machining Cheb
Kho kom haum:
Minor scratches or dents can be repaired through mechanical polishing (e.g., using a fine sanding belt or wool wheel) to restore the surface finish. Deeper defects (e.g., >0.1mm nyob rau hauv qhov tob) yuav tsum tau ntsuas los txiav txim siab yog tias lawv yuav cuam tshuam rau kev pabcuam kev pabcuam thiab, yog tias tsim nyog, kos.
Kev tiv thaiv ib ntus:
Yog tias kev kho tom ntej (xws li kev thaij duab) tsis tau ua tam sim ntawd tom qab machining, lub npoo yuav tsum tau tiv thaiv los ntawm xeb. Ib txheej nyias nyias ntawm anti - Rev Roj tuaj yeem txau rau lossis npog nrog cov ntaub qhwv yas kom tiv thaiv noo noo thiab xeb. Ntsiab lus: kom ntseeg tau tias qhov chaw zoo ntawm Q195 tom qab ua haujlwm txias yuav tsum tau ua raws li cov ntsiab cai ntawm "kev tiv thaiv ua ntej, ua ntej} Kev kho mob pib ua haujlwm; Lub sijhawm ua, cov pwm ua kom zoo, lubrication, thiab tsis muaj los txo cov tsis zoo tshiab; Thiab thaum kawg, txhim kho lub qhov xwm txheej los ntawm kev ntxuav thiab kho. Rau cov ntawv thov yuam (xws li sab nraud sab nraud), tshaj tawm} Kev ntsuas kev ua kom zoo dua qub (RA