Siv daim iav zoo nkauj hlawv cov menyuam lub cev ua piv txwv, siv lub tshuab ntub dej polishing los tsom rau polishing cov menyuam nto ua ntej electroplating kom txo cov shading thiab xyuas kom meej qhov roughness yuav tsum tau. Tom qab electroplating, cov menyuam lub cev nrog cov txheej txheej ruaj khov thiab daim iav tuaj yeem tau txais los ntawm kev sib tsoo nrog cov hlua khi ntawm cov meshes sib txawv.
1 lus
Lub tshuab ironing yog ib qho tseem ceeb ntawm lub tshuab ironing. Cov menyuam lub cev feem ntau yog ua los ntawm cov pa roj carbon tsawg seamless raj. Txhawm rau ua kom lub ntsej muag ntawm cov ntaub muaj lub siab gloss, qhov saum npoo ntawm cov menyuam lub cev yuav tsum tau kho cov tawv chrome plating, thiab tus nqi deg roughness Ra=001-0.025μm yuav tsum tau, thiab cov iav nyhuv tuaj yeem ua tiav tom qab polishing[1]. Txoj kev ua haujlwm dav dav suav nrog kev siv tshuab polishing, electrolytic polishing, thiab lwm yam. Rau cov menyuam lub cev nrog ib txoj kab uas hla ntawm 415mm, lub tuam txhab tau txais kev siv tshuab abrasive siv polishing txoj kev kom tau txais daim iav nto rau cov menyuam lub cev nrog tus nqi roughness R a {{5} }.02m ib. Thaum lub sij hawm ua, nws tau pom tias qhov ntxhib polishing zoo ua ntej electroplating muaj ib qho tseem ceeb ntawm cov polishing zoo tom qab electroplating. Los ntawm kev tswj cov ntxhib polishing zoo, lub siab zoo chrome txheej iav polishing nyhuv tuaj yeem tau txais.
2 Kev tshuaj xyuas cov teeb meem ntawm cov menyuam lub cev ua haujlwm
Raws li pom hauv daim duab 1, cov menyuam lub cev yog ua los ntawm 20 # seamless steel yeeb nkab. Txij li thaum muaj ntug ntawm A ntawm cov menyuam lub cev, nws txoj haujlwm yog los tuav thiab zuag cov npoo ntawm cov ntaub, yog li cov ntug tsis tuaj yeem raug nyem thaum ua, thiab nws yuav tsum tau xyuas kom meej tias tsis muaj ntug sib npaug tshwm sim thaum sib tsoo. Nyob rau tib lub sij hawm, nyob rau hauv tus txheej txheem ntawm abrasive siv polishing, vim muaj cov grooves, lub taub hau polishing nyob rau hauv ib lub xeev ntawm intermittent polishing, yog li abrasive siv shading feem ntau tshwm nyob rau hauv tus txheej txheem ntawm kev hloov ntawm nto, tshwj xeeb tshaj yog thaum lub sij hawm polishing ntxhib, nws yuav tshwm sim ntawm qhov chaw ntawm lub cev menyuam. Nruam ntxoov ntxoo sib txawv. Vim hais tias yog qhov roughness tsis tuaj yeem lav tau ua ntej electroplating, nws yuav nyuaj rau kev ua cov txheej txheem siab hardness chrome plating kom ua tiav cov nyhuv iav, yog li cov txheej txheem shading ua ntej electroplating tseem ceeb heev.
3 txheej txheem tsom xam
Cov txheej txheem tom qab sib tsoo cov menyuam lub cev yog: sib tsoo → ntxhib polishing → electroplating → tiav polishing → ua tom ntej.
Tom qab cov menyuam lub cev yog hauv av, tus nqi deg roughness ncav cuag Ra=0.8μm, thiab qhov saum npoo yog me ntsis paub. Qhov saum npoo ntawm cov menyuam lub cev tom qab polishing yog pom hauv daim duab 2.
Daim duab 2 Qhov saum npoo ntawm cov menyuam lub cev tom qab polishing
Lub tshuab polishing yog hloov los ntawm CW6180E kab rov tav tshuab dhos ntawm Dalian Tshuab Tuam Tuam Txhab. Polishing yog qhia hauv daim duab 3.
Daim duab 3 Polishing schematic
Tom qab cov menyuam lub cev raug kho thiab debugged ntawm lub tshuab polishing, cov menyuam nto yuav tsum tau muab ntxuav kom tsis txhob sib tsoo lub log los ntawm adhering rau cov menyuam nto, txwv tsis pub cov iav zaum kawg yuav raug cuam tshuam. Cov txheej txheem ua haujlwm ntawm cov cuab yeej polishing yog: qhov ceev ntawm lub cev lub cev yog 126r / min, tus nqi pub yog 0.26mm / r, thiab zaus ntawm lub taub hau viav vias yog 12-18Hz.
Kho qhov zaus ntawm lub taub hau viav vias raws li tus naj npawb ntawm meshes ntawm txoj siv abrasive. Qhov tshwj xeeb ntxhib polishing → electroplating → zoo polishing txheej txheem yog qhia nyob rau hauv Table 1. Thaum polishing, nto ntawm abrasive siv reciprocates nyob rau hauv lub axial kev taw qhia perpendicular rau cov menyuam nto. Tom qab polishing ob zaug nrog rau 250-mesh abrasive siv, cov menyuam nto yuav muaj qhov nruam shading raws lub radial kev taw qhia, thiab cov menyuam nto yuav tsaus nti glossy tib lub sijhawm. Muaj qhov pom tseeb qhov sib txawv hauv av cov menyuam lub cev. Hom kev shading no feem ntau tshwm sim los ntawm qhov sib txawv ntawm cov xuab zeb nplej ntawm qhov chaw ntawm txoj siv abrasive [2]. Qhov qis mesh tus naj npawb ntawm txoj siv abrasive, qhov siab dua qhov me me, thiab qhov pom tseeb dua cov kab uas nyob rau saum npoo ntawm cov menyuam lub cev thaum polishing; tib lub sij hawm, cov menyuam nto ntaus Nws kuj muaj qee yam cuam tshuam rau polishing. Kev sib tsoo cuam tshuam rau lub siab ntawm txoj siv abrasive ntawm cov menyuam nto, ua rau muaj qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv. Rau cov menyuam lub cev tshwj xeeb ntawm cov menyuam ironing, cov shading feem ntau tshwm sim nyob ze ntawm ntug, thiab kev sib cuag ntawm txoj siv abrasive thiab cov menyuam nto yuav ua rau kev sib tsoo ntawm cov xuab zeb nplej ntawm qhov siab tshaj qhov ntawm cov menyuam nto, thiab tib lub sijhawm, cov menyuam lub cev rotates Nws yog ib qho yooj yim uas yuav ua rau cov ntug mus rau hauv ib ncig arc ntug, yog li kev tswj ntawm kev sib cuag ntawm txoj siv abrasive thiab cov menyuam nto yog ib qho tseem ceeb heev. Tom qab polishing nrog 500-mesh thiab 1000-mesh abrasive siv, cov shading yog refined. Thaum lub teeb ci rau ntawm cov menyuam nto, nws yog diffusely reflected los ntawm shading. Nws yuav tsum tau soj ntsuam raws li cov kev taw qhia ntawm lub teeb, thiab muab piv nrog rau saum npoo roughness tus qauv qauv txiav txim seb nws puas yog Polishing nrog ib tug 1500 grit abrasive siv yuav tsum tau.
Table 1 Rough polishing → electroplating → nplua polishing txheej txheem duab
Tom qab polishing ntxhib, tus nqi nto roughness tau lees tias yog Ra Tsawg dua lossis sib npaug rau 0.1μm, thiab tsis muaj qhov pom kev ua tiav ntawm qhov chaw, thiab 1500-mesh abrasive siv shading tau tso cai nyob rau hauv lub teeb-fab txoj kev. Qhov kev txhaj tshuaj tiag tiag ntawm cov menyuam lub cev tom qab polishing ntxhib yog qhia hauv daim duab 4.
duab
Daim duab 4 Qhov saum npoo ntawm cov menyuam tom qab polishing ntxhib
Qhov tseeb saum npoo ntawm cov menyuam lub cev tom qab electroplating yog pom nyob rau hauv daim duab 5. Qhov saum npoo yog ci thiab glossy, tab sis cov shading tseem muaj. Tom qab kev soj ntsuam ntawm qhov chaw thiab kev txheeb cais, nws pom tau tias qhov chaw roughness tus nqi ua ntej electroplating yog proportional rau lub nto roughness tus nqi tom qab electroplating, thiab lub thickness ntawm txheej kuj muaj feem xyuam rau lub nto roughness ntawm cov menyuam nto tom qab electroplating.
duab
Daim duab 5 Qhov saum npoo ntawm cov menyuam lub cev tom qab electroplating
Qhov kev sib raug zoo ntawm qhov chaw roughness ntawm cov menyuam ua ntej thiab tom qab electroplating thiab cov thickness ntawm txheej yog qhia nyob rau hauv Table 2. Nws tuaj yeem pom tias qhov nce ntawm cov thickness ntawm cov txheej txheej ua rau saum npoo ntawm cov menyuam rougher. Raws li cov nyhuv spikes tam sim no, qhov ceev tam sim no yog siab ntawm lub ncov ntawm microscopic unevenness ntawm lub workpiece substrate, thiab cov electroplating hlau ions tau tso rau hauv ua ntej, ua rau cov txheej thicken sai ntawm lub ncov, thiab raws li lub sij hawm electroplating nce, cov txheej yuav thicker thiab nto Nws ua rougher [3], xav txog cov nqi kev lag luam thiab kev ua haujlwm tom qab, lub thickness ntawm txheej yuav tsum tau ntau tshaj los yog sib npaug rau 80 μm.
Table 2 Kev txheeb cais ntawm kev sib raug zoo ntawm qhov chaw roughness ntawm cov menyuam lub cev thiab lub thickness ntawm txheej ua ntej thiab tom qab electroplating (unit: μm)
Lub cev electroplated rau cov menyuam yog tsau rau ntawm lub tshuab polishing rau kev ua tiav. Qhov txawv ntawm qhov ntxhib polishing dhau los yog qhov qis qis ntawm lub viav vias zaus yog xaiv rau polishing zoo, yog li cov siv abrasive tshiab yog nyob rau hauv kev sib cuag nrog cov menyuam nto kom ntau li ntau tau los txhim kho qhov kev tshem tawm shading. Tom qab polishing nrog abrasive siv ntawm cov meshes sib txawv, paub meej tias qhov roughness ntawm cov menyuam nto (nto roughness tus nqi Ra Less tshaj los yog sib npaug rau 0.03μm) ua ntej qhov kawg glazing. Yog tias tsis yog, txuas ntxiv polish nrog 1500 mesh abrasive siv. Lub 3000-mesh glazing abrasive siv tau yooj yim tshem tawm cov seem shading. Lub cev yob tiav yog qhia hauv daim duab 6.
Daim duab 6 Qhov kev txhaj tshuaj tiag tiag ntawm qhov ua tiav ntawm cov menyuam lub cev
4 Kev xaus
Nyob rau hauv daim ntawv no, ib tug ntub siv polishing tshuab yog siv los ua cov txheej txheem ntawm cov menyuam nto ua ntej electroplating. Los ntawm kev tswj cov ntxhib polishing zoo, daim iav zoo polishing nyhuv ntawm cov tawv chromium txheej tau txais, thiab cov lus xaus hauv qab no tau kos.
1) Qhov qis dua qhov roughness ntawm cov menyuam nto ua ntej electroplating, qhov qis ntawm qhov roughness tus nqi ntawm cov txheej electroplating, qhov tsawg dua shading nyob rau hauv cov txheej txheem tom ntej zoo polishing, thiab qhov yooj yim dua yog kom tau txais daim iav zoo rau cov menyuam lub cev. . Abrasive txoj siv tawv ntawm cov meshes sib txawv tuaj yeem maj mam ua kom zoo dua qhov ntxoov ntxoo kom txog thaum nws raug tshem tawm.
2) Cov menyuam lub cev thiab txoj siv polishing tig mus rau qhov sib txawv, uas tuaj yeem txhim kho kev sib tsoo kom zoo thaum tiv thaiv lub npoo npoo
