Cov Ntaub Ntawv Thov Kev Saib Xyuas Cov Dej Fwj ntawm Lub Tuam Txhab Spring Manufacturing

Hauv cov txheej txheem kho qhov chaw ntawm cov caij nplooj ntoos hlav, phosphating siv los ua ib txheej tiv thaiv uas tiv thaiv kev xeb. Qhov no suav nrog kev muab cov caij nplooj ntoos hlav tso rau hauv cov kua phosphating uas muaj cov hlau ions xws li zinc, manganese, thiab nickel. Los ntawm kev tshuaj lom neeg, ib daim zaj duab xis ntsev phosphate uas tsis yaj tau tsim rau ntawm qhov chaw ntawm lub caij nplooj ntoos hlav.

Cov txheej txheem no tsim ob hom dej khib nyiab tseem ceeb
1. Cov Tshuaj Phosphating Pov Tseg: Lub chaw phosphating yuav tsum tau hloov pauv tsis tu ncua, ua rau muaj cov kua pov tseg uas muaj ntau qhov concentration. Cov pa phem tseem ceeb suav nrog zinc, manganese, nickel, thiab phosphate.
2. Dej Yaug Phosphating: Tom qab phosphating, ntau theem yaug yuav ua. Txawm hais tias qhov concentration ntawm cov pa phem qis dua li ntawm lub dab dej siv lawm, qhov ntim yog ntau heev. Cov dej yaug no muaj cov zinc, manganese, nickel, thiab tag nrho phosphorus, uas yog qhov chaw tseem ceeb ntawm cov dej phosphating hauv cov chaw tsim khoom caij nplooj ntoos hlav.

Kev Txheeb Xyuas Txog Cov Khoom Phem Tseem Ceeb:
1. Hlau - Cov Khoom Uas Ua Rau Muaj Hlau Phem Thawj Zaug
Qhov Chaw: Feem ntau yog los ntawm cov txheej txheem pickling acid, qhov twg cov hlau caij nplooj ntoos hlav raug kho nrog hydrochloric lossis sulfuric acid kom tshem tawm cov hlau oxide nplai (xeb). Qhov no ua rau cov hlau ions yaj ntau rau hauv cov dej khib nyiab.
Vim Li Cas Thiaj Saib Xyuas Thiab Tswj:
- Kev Cuam Tshuam Pom Kev: Thaum tso tawm, cov ferrous ions oxidize rau ferric ions, tsim cov xim av liab-xim av ferric hydroxide precipitates uas ua rau cov dej turbidity thiab discoloration.
- Cov teebmeem ntawm kev sib raug zoo ntawm ib puag ncig: Cov ferric hydroxide uas sib sau ua ke tuaj yeem poob rau ntawm cov dej ntws, ua rau cov kab mob benthic nyob hauv dej thiab cuam tshuam rau cov ecosystem hauv dej.
- Cov Teeb Meem Txog Kev Tsim Kho Vaj Tse: Cov hlau uas tso rau hauv yuav ua rau cov kav dej txhaws thiab ua rau lub kaw lus ua haujlwm tsis zoo.
- Kev Kho Mob Yuav Tsum Tau Ua: Txawm hais tias nws muaj tshuaj lom tsawg, feem ntau hlau muaj nyob rau ntawm qhov ntau thiab tuaj yeem tshem tawm tau zoo los ntawm kev hloov pH thiab nag lossis daus. Kev kho ua ntej yog qhov tseem ceeb kom tiv thaiv kev cuam tshuam nrog cov txheej txheem downstream.

2. Zinc thiab Manganese - "Phosphating Khub"
Cov Qhov Chaw: Cov ntsiab lus no feem ntau yog los ntawm cov txheej txheem phosphating, uas yog qhov tseem ceeb rau kev txhim kho kev tiv thaiv xeb thiab kev nplaum txheej. Feem ntau cov chaw tsim khoom caij nplooj ntoos hlav siv cov tshuaj phosphating zinc- lossis manganese-based. Kev yaug dej tom qab ntawd nqa cov zinc thiab manganese ions mus rau hauv cov dej khib nyiab.
Vim Li Cas Thiaj Saib Xyuas Thiab Tswj:
- Kev Lom Zem Hauv Dej: Ob qho hlau no muaj kev lom zem rau cov ntses thiab lwm yam tsiaj txhu hauv dej, txawm tias nyob rau hauv qhov ntau tsawg, cuam tshuam rau kev loj hlob, kev yug me nyuam, thiab kev ciaj sia.
- Zinc: Ua rau cov ntses lub qhov ntswg tsis ua haujlwm zoo, ua rau kev ua pa tsis zoo.
- Manganese: Kev raug tshuaj ntau dhau ua rau muaj kev sib sau ua ke ntawm cov khoom hauv lub cev thiab ua rau muaj kev phom sij rau lub paj hlwb.
- Kev Ua Raws Cai: Cov qauv kev tso tawm hauv tebchaws thiab thoob ntiaj teb tsim cov kev txwv nruj rau cov zinc thiab manganese concentration. Kev tshem tawm zoo feem ntau yuav tsum tau siv cov tshuaj lom neeg los ua cov tshuaj alkaline los tsim cov hydroxides uas tsis yaj.

3. Nickel - Ib Lub Hlau Hnyav Uas Muaj Kev Pheej Hmoo Siab Uas Yuav Tsum Muaj Kev Cai Tswjfwm Nruj
Cov Qhov Chaw:
- Muaj nyob rau hauv cov khoom siv raw: Qee cov hlau alloy, suav nrog cov hlau tsis xeb, muaj nickel, uas yaj rau hauv cov kua qaub thaum lub sijhawm pickling.
- Cov txheej txheem kho qhov chaw: Qee cov tshuaj electroplating lossis tshuaj pleev xim tshwj xeeb suav nrog cov tshuaj nickel.
Lub laj thawj rau kev saib xyuas thiab kev tswj hwm (Qhov tseem ceeb tshaj plaws):
- Kev Phom Sij Rau Kev Noj Qab Haus Huv thiab Ib puag ncig: Nickel thiab qee cov tshuaj nickel raug suav hais tias yog cov tshuaj carcinogens. Lawv kuj muaj kev pheej hmoo vim lawv cov tshuaj lom, cov khoom ua xua, thiab lub peev xwm rau bioaccumulation, ua rau muaj kev hem thawj mus sij hawm ntev rau tib neeg kev noj qab haus huv thiab ecosystems.
- Cov Kev Txwv Tsis Pub Muaj Pa Tawm: Cov cai xws li "Integrated Wastewater Discharge Standard" teeb tsa cov nickel qis tshaj plaws uas tso cai (feem ntau ≤0.5–1.0 mg/L), uas qhia txog nws qib kev phom sij siab.
- Cov Teeb Meem Kev Kho Mob: Cov dej nag alkali ib txwm muaj tej zaum yuav tsis ua tiav cov theem kev ua raws li txoj cai; cov txheej txheem siab heev xws li cov neeg sawv cev chelating lossis cov dej nag sulfide feem ntau yog qhov xav tau rau kev tshem tawm nickel zoo.

Kev tso cov dej khib nyiab uas tsis tau kho ncaj qha yuav ua rau muaj kev ua qias tuaj rau cov dej thiab av ib puag ncig hnyav thiab tsis tu ncua. Yog li ntawd, txhua yam dej khib nyiab yuav tsum tau kho kom zoo thiab kuaj xyuas kom zoo kom ntseeg tau tias ua raws li txoj cai ua ntej tso tawm. Kev saib xyuas tiag tiag ntawm qhov chaw tso tawm yog ib qho kev ntsuas tseem ceeb rau cov tuam txhab kom ua tiav lub luag haujlwm ib puag ncig, lav qhov ua raws li txoj cai, thiab txo cov kev pheej hmoo ntawm ecological thiab kev cai lij choj.