How to Screen Solvent-Resistant Corrosion Materials for Micropumps and Establish Standards?

Qhov kev thov kom muaj cov twj me me hauv kev ua tshuaj lom neeg, tshuaj, thiab kev tsim khoom siv semiconductor ntau zuj zus tau ua rau muaj kev xav tau cov khoom siv uas muaj peev xwm tiv taus cov kuab tshuaj hnyav. Tsab xov xwm no tshawb nrhiav cov kev txiav txim siab tseem ceeb hauv kev xaiv cov khoom siv, cov txheej txheem kuaj, thiab cov qauv tshiab rau cov khoom siv twj me me uas tiv taus cov kuab tshuaj, txhawb nqa los ntawm kev nce qib hauv kev tshawb fawb polymer thiab kev tshawb fawb txog kev lag luam.

1. Cov Qauv Tseem Ceeb rau Kev Xaiv Cov Khoom Siv Uas Tiv Thaiv Tau Cov kuab tshuaj

Kev sib raug zoo ntawm tshuaj lom neeg:
Cov ntaub ntawv yuav tsum tiv taus kev puas tsuaj los ntawm cov kuab tshuaj xws li acetone, toluene, thiab cov tshuaj chlorinated. Piv txwv li, PTFE (polytetrafluoroethylene) thiab PEEK (polyether ether ketone) tau txais kev pom zoo dav dav vim lawv tsis muaj zog rau cov hydrocarbons thiab cov kua qaub. Yamada Corporation lub twj tso kua mis NDP-series, siv PTFE diaphragms, qhia tias tsis muaj qhov o tom qab 1,000 teev ntawm kev raug rau cov kuab tshuaj semiconductor-qib.

Kev Ruaj Ntseg Mechanical:
Cov ntawv thov siab (piv txwv li, HPLC systems) xav tau cov ntaub ntawv uas khaws lub zog tensile hauv qab kev ntxhov siab. Cov hlau tsis xeb 316L thiab Hastelloy C-276 alloys yog qhov nyiam rau lawv ob qho kev tiv thaiv rau corrosion thiab mechanical hnav, tswj tau siab txog li 50 bar hauv kev hloov pauv tshuaj.

Kev Ua Tau ntawm Kev Tsim Khoom:
Cov ntaub ntawv yuav tsum sib npaug ntawm kev ua tau zoo nrog kev tsim khoom. Piv txwv li, fluoropolymer compositesua rau muaj kev txhaj tshuaj precision ntawm cov twj tso kua mis me me thaum tswj kev tiv thaiv tshuaj lom neeg - ib txoj kev txhim kho los ntawm FLUX-GERÄTE GmbH rau VOC-free magnetic drive pumps.

Kev Siv Nyiaj Zoo:
Cov kev xaiv siv bio-based xws li PVDF (polyvinylidene fluoride) muab 80% ntawm PTFE txoj kev tiv thaiv tshuaj lom neeg ntawm 40% tus nqi qis dua, ua rau lawv siv tau rau cov twj tso kua mis me me kho mob pov tseg.

2. Cov Khoom Siv Tseem Ceeb thiab Cov Qauv Kev Ua Tau Zoo

A. Cov Khoom Siv Polymer thiab Cov Khoom Sib Xyaws

PTFE:
- Cov Zoo: Kev tsis muaj tshuaj lom neeg zoo heev, kev sib txhuam tsawg, thiab kev ruaj khov thermal (txog li 260 ° C).
- Daim Ntawv Thov: Diaphragms hauv cov twj tso kua dej rov qab rau cov khoom siv semiconductor.
- Cov Kev Txwv: Tsis zoo hnav tsis kam; feem ntau ua ke nrog carbon fiber rau kev ruaj khov.
PEEK:
- Qhov Zoo: Lub zog siab-rau-qhov hnyav piv, tiv taus cov pa thiab cov kuab tshuaj organic.
- Kev Kawm Txog Qhov Teeb Meem: Siv rau hauv Graco's UniRacer twj rau cov txheej txheem tsheb, txo lub sijhawm tsis ua haujlwm los ntawm 30%..

B. Cov Hlau thiab Cov Khoom Sib Xyaws

Cov hlau tsis xeb 316L:
- Cov Zoo: Pheej Yig rau cov chaw muaj xeb me ntsis; zoo tagnrho rau kev tuav ethanol thiab methanol.
- Kev Ntsuas: Muaj sia nyob tau 5,000 lub voj voog hauv 20% HCl cov tshuaj yam tsis muaj pitting.
Hastelloy C-22:
- Cov Zoo: Tiv taus cov kua qaub oxidizing thiab chlorides; tseem ceeb rau API tsim cov twj tso kua mis.
- Kev Txheem Txheem: ASTM B575 yuam kom siv nws hauv cov txheej txheem hloov pauv tshuaj.

C. Cov Khoom Siv Ua Los Ntawm ...

Cov khoom sib xyaw ua ke ntawm alumina-zirconia:
- Qhov Zoo: Tsis muaj permeation, qhov nyuaj piv rau pob zeb diamond.
- Daim Ntawv Thov: Kev siv cov kuab tshuaj ultra-pure hauv EUV lithography twj.

3. Cov Txheej Txheem Kuaj Xyuas Kev Tiv Thaiv Cov Tshuaj

Kev Ntsuas Dej:

Cov qauv kuaj raug muab tso rau hauv cov kuab tshuaj ntawm qhov kub siab (piv txwv li, 60 ° C) rau 30–90 hnub. Kev hloov pauv hnyav thiab kev puas tsuaj ntawm qhov chaw raug ntsuas raws li ISO 175 cov lus qhia.

Kev Caij Tsheb Kauj Vab Siab:

Ua raws li qhov xwm txheej tiag tiag los ntawm kev hloov pauv ntawm lub tshuab nqus tsev thiab lub zog siab. FLUX-GERÄTE lub twj tso kua mis magnetic tsav tau 10,000 lub voj voog ntawm 10 bar nrog <0.1% xau.

Kev Ua Simulation Hauv Lub Ntiaj Teb Tiag:

Cov twj me me raug sim hauv ntau qhov chaw uas muaj ntau cov kuab tshuaj (piv txwv li, cov chaw ua roj av petrochemical). North Ridge Pumps cov IoT-enabled AODD systems saib xyuas cov khoom siv qaug zog hauv qab cov xylene/acetone sib xyaw.

4. Cov Teeb Meem Hauv Kev Tsim Qauv

Cov Kev Cai ntawm Kev Lag Luam Sib Txawv:

Cov chaw kuaj semiconductor muab qhov tseem ceeb rau kev huv (ISO Class 1), thaum cov chaw muag tshuaj tsom mus rau kev ua raws li FDA. Qhov kev faib ua feem no ua rau cov qauv thoob ntiaj teb nyuaj dua.

Cov Kev Cai Tswjfwm:

Cov qauv uas twb muaj lawm xws li EU REACH thiab US EPA Chemical Safety Rules tsis muaj cov lus qhia tshwj xeeb rau cov twj me me rau kev sib haum xeeb ntawm cov kuab tshuaj.

Cov Kev Koom Tes Ua Haujlwm:

LubInternational Micro Pump Consortium (IMPC)tab tom sau ib qho txheej txheem kev faib tawm cov khoom siv sib txawv (lub hom phiaj 2026), uas sib haum nrog ISO 10993 rau kev sib raug zoo ntawm cov khoom siv thiab ASTM D543 rau kev tiv taus tshuaj lom neeg.

5. Cov Kev Taw Qhia Yav Tom Ntej thiab Kev Tsim Kho Tshiab

Kev Sib Koom Tes Khoom Siv Ntse:

Cov hlau nplaum uas nco tau cov duab thiab cov polymers uas kho tau tus kheej tuaj yeem ua rau muaj kev hloov pauv tam sim ntawd rau cov kev hloov pauv ntawm cov kuab tshuaj. Kev sim hauv chav kuaj pom tias cov twj tso kua mis SMA-txheej kho qhov chaw ntawm lub valve thaum raug rau qhov hloov pH.

Kev Kho Kom Zoo Nkauj 3D Luam Tawm:

Kev tsim khoom ntxiv tso cai rau cov twj tso kua mis topology-optimized hauv PEEK-CF composites, txo cov kuab tshuaj permeation los ntawm 60% piv rau cov khoom molded.

Cov Kev daws teeb meem biodegradable:

Cov twj me me uas siv PLA tab tom tshwm sim rau kev faib cov kuab tshuaj uas tsis ua rau ib puag ncig puas tsuaj, txawm hais tias kev siv tau ntev hauv cov chaw muaj kev kub ntxhov tseem yog qhov teeb meem.