Cov laj thawj thiab kev daws teeb meem
1. Rough Substrate Ua ntej Plating
Yog hais tias lub substrate nto tom qab tig los yog sib tsoo yog substandard, electroplating yuav "replicate" cov qub defects. Lub substrate yuav tsum tau finely hauv av los yog polished los xyuas kom meej Ra tsawg dua los yog sib npaug rau 0.4μm ua ntej plating; chemical polishing lossis electrolytic polishing pretreatment tuaj yeem siv los txhim kho qhov sib xws.
2. Tsis tswj xyuas Electroplating Parameters
Ntau qhov ceev tam sim no, tsis muaj qhov sib npaug ntawm cov txheej txheem plating (piv txwv li, CrO₃ < 250g / L), lossis anode tsis raug -cathode piv (pom zoo 1: 5 txog 1: 10) tuaj yeem ua rau cov khoom siv lead ua ntxhib. Lub plating tov ratio yuav tsum tau kho, qhov kub thiab txias tswj kom ruaj khov, thiab mem tes electroplating tshuab yuav tsum tau siv kom tau ib tug denser txheej.
3. Tsis muaj Post-kev kho mob
Kev ua tsis tiav dov lossis polishing tom qab plating tuaj yeem ua rau tus nqi siab Ra. Roller burnishing tuaj yeem siv los txo qhov roughness los ntawm kev ua haujlwm txias, thaum txhim kho hnav tsis kam thiab qaug zog. Rau siab - qhov yuav tsum tau ua kom raug, ultra- kev sib tsoo zoo lossis cov tshuab polishing tau pom zoo kom txo Ra kom qis dua 0.2.
4. Pinholes, pores, los yog nodules nyob rau hauv lub plating txheej feem ntau yog tshwm sim los ntawm impurities nyob rau hauv lub plating tov, tsis tiav degreasing, los yog gas retention. Cov tshuaj plating yuav tsum tau lim kom tshem tawm cov khoom tshem tawm; pretreatment yuav tsum tau ntxiv dag zog kom ntseeg tau tias tsis muaj roj lossis oxide nplai; lub fixture tsim yuav tsum tau optimized kom tsis txhob muaj huab cua hnab ris thiab xyuas kom meej du gas paug.
Rework Strategies
1. Ntau tshaj qhov txwv (Ra me ntsis siab dua 0.8μm): Sib tsoo thiab polishing tuaj yeem ua ncaj qha los kho Ra kom qis dua 0.4, haum rau cov lus qhia dav dav lossis cov pas nrig.
2. Pom tseeb roughness lossis cov cim cuab yeej: Nws raug nquahu kom tshem cov plating thiab rov-plat. Ua ntej, tshem tawm cov qub plating los ntawm acid pickling los yog rov qab polarity txoj kev, ces re-plat raws li specifications los xyuas kom meej cov txheej txheem stability.
3. Localized defects (xws li pitting, pinholes): Localized sib tsoo thiab kov -plating tuaj yeem ua tau, kho tsuas yog thaj tsam cuam tshuam, txuag sijhawm thiab nqi.
✅ Nco tseg: Rau siab - daim ntawv thov precision xws li hydraulic system piston rods thiab automated equipment guide shafts, nws tsis pom zoo kom siv chrome ncaj qha - plated rods nrog ntau roughness, vim qhov no yuav ua rau lub foob hnav, ua rau cov dej xau lossis ua haujlwm tsis zoo.
Kev tiv thaiv:
1. Teeb tsa cov ntsiab lus tshuaj xyuas ntawm txhua theem ua ntej, lub sijhawm, thiab tom qab electroplating kom ua tiav tag nrho - txheej txheem tswj kom zoo;
2. Lim cov tshuaj plating tsawg kawg ib zaug ib lub lim tiam thiab tsis tu ncua kuaj CrO₃, sulfuric acid ratio, thiab trivalent chromium cov ntsiab lus;
3. Ua ntej cov neeg muab khoom lag luam nrog cov peev xwm kuaj hauv online thiab ua kom tiav cov txheej txheem tswj kom zoo kom ntseeg tau cov khoom sib xws.
