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Ningbo Qianhao Hlau Khoom Co., Ltd

Ntxiv: No. 2086 Ningheng South Road, Hengxi Town, Yinzhou, Ningbo, Zhejiang, 315131, Suav teb

Hu rau: Roger Jiang

Txawb: + 86-13906686835

Tel: + 86-574-88065888 88063688

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Lub website: http://www.casting-steel.com / http://www.cnlongxing.com

E-mail: sales@casting-steel.com

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Vim Li Cas Thiab Cov Txheej Txheem Ntawm Oxidation Cov Chaw Hauv Tsheb Castings

Ningbo Qianhao Hlau Khoom Co., Ltd | Updated: Oct 17, 2017

Vim Li Cas thiab Cov Kev Ntsib Ntawm Cov Pa Dej Nqaij Nres Hauv Cov Tsheb Castings

Automobile Castings thiab lawv cov phom yog ntau yam nyuaj rau nyiaj ntau dua tooj, cov txheej txheem tseem ua ntau dua. Lub ntsiab yog vim tias kev ua yeeb yam ntawm castings thiab lawv cov phom yog tsis zoo ib yam li lwm yam hlau, txhuas yog ob hom kev sib deev, thiab kua qaub thiab alkali yog cov tshuaj tiv thaiv, ua kom tsis haum me ntsis, nws yuav ua rau lub qhov hluav taws xob hla qhov corrosion. Thiab cam khwb cia thiab nws cov phom leej twg los xij, txawm nyob rau hauv huab cua los yog nyob rau hauv cov huab cua yog yooj yim tsim oxide zaj duab xis, txheej txheej ntawm oxide zaj duab xis yog tias tsis tawm, yuav cuam tshuam rau qhov adhesion ntawm lub txheej. Casting Common defects Nta: Oxidation slag feem ntau muab faib rau saum npoo ntawm casting, nyob rau hauv kaum ntawm lub pwm tsis ventilated. Qhov zis feem ntau grey los yog daj, xoo hluav taws xob los yog nyob rau hauv qhov chaw ua hauj lwm pom, kuj tuaj yeem nyob rau hauv alkaline ntxuav, pickling lossis anodizing pom. Cov kev sim tau qhia tias qhov sib ntxiv ntawm cov khoom tsim nyog ntxiv hauv cov dej haus tshuaj NaOH tuaj yeem tsim cov txiaj ntsig zoo polishing.

Qhov kev tshawb nrhiav tshawb pom kuj pom tau hais tias qhov sib npaug ntawm qhov aluminium tuaj yeem ncav cuag 90% tom qab DC qhov siab ceev electrolysis nrog cov tshuaj NaOH hauv qee yam mob, tab sis kuj tseem muaj qee yam tsis ruaj tsis zoo los ntawm kev sim, uas xav tau kev kawm ntxiv. Lub feasibility ntawm kev siv DC pulsed polishing txoj kev los txhuam cov txhuas txhuas hauv cov txheej txheem yooj yim raug tshawb. Cov kev tshwm sim qhia tau hais tias qhov pulse electrolysis polishing txoj kev ua tau zoo ntawm kev sib koom tes ntawm DC qhov hluav taws xob qhov hluav taws xob ntawm qhov hluav taws xob, tab sis nws cov qib kev ua qeeb qeeb qeeb.

Pob casting ib feem ntawm txhuas txheej yog txiav, tawm txheej pob ntawm txhuas yog zoo aluminium, lub puab txheej ntawm lub pob yog lwm yam txhuas, ob yam ntaub ntawv, yog li oxidation ntawm "vitiligo" zoo li me ntsis.

Tov: Cov phenomenon no feem ntau tsis nkag siab ntau ntawm cov neeg siv khoom, manufacturers yuav tsum ua ntau los piav txog kev ua haujlwm, tshem tag nrho zaj dab neeg, yog li tsis txhob ua yuam kev. Ntawm qhov tod tes, kev txhim kho kev lag luam txhuas txhim kho tias kev siv cov tsheb Castings yuav nce 50 feem pua ​​ntawm tsib xyoos, los ntawm 250 phaus / tsheb hauv 2000 txog 380 / tsheb los ntawm 2005. Ntau cov khoom siv thiab kev ua haujlwm, xav tau rau lub tshuab pob zeb diamondrystalline (PCD). Lub ntsiab ua rau chip PCD puas rau lub sijhawm ua haujlwm. Txhawm kom khaws twj ywm PCD txiav kom zoo zoo, nws yog qhov zoo tshaj plaws los muab faib rau kev txiav nyiaj kom sib npaug rau txhua qhov kev txiav milling.

Kev Tsav Tsheb Casting: Lub txhuas txhuas casting mus rau kub dua, feem ntau yog li 300 ℃ los yog li, tom qab ib lub sij hawm lub sij hawm, nrog cua sov txias rau chav kub txheej txheem hu ua kev nyuab siab. Thaum cov txheej txheem daws teeb meem, cov khoom tsim kho decomposes, thiab txheej txheem thib ob ntawm cov khoom siv yog aggregated, uas yuav tshem tawm cov kev ntxhov siab ntawm qhov casting, stabilize casting me me, txo cov deformation thiab nce cov yas ntawm cov casting.