Txhawm rau kom tsis txhob muaj impurities sib xyaw rau hauv silicone roj hmab rau insulators, fuses thiab surge arresters, cov tub ntxhais nyob rau hauv tsim ib tugtag nrho - txheej txheem, tag nrho -factor thiab traceable impurity tswj system, nrog rau kev tswj nruj nyob rau hauv rau qhov ntev: raw cov ntaub ntawv, ib puag ncig, khoom siv, txheej txheem, tshuaj xyuas thiab tswj, thiaj li yuav lav lub purity thiab hluav taws xob rwb thaiv tsev zog ntawm silicone roj hmab.
I. Raw Material Source Control (Eliminating Congenital Impurities)
Cov ntaub ntawv raw yog qhov tseem ceeb ntawm impurities, uas yuav tsum tau tswj nruj me ntsis thoob plaws hauv kev yuav khoom, kev lees paub thiab kev cia khoom.
1. Tus neeg siv khoom nkag mus thiab xaiv
Ua ntejfais fab -qib/insulator- tshwj xeeb silicone roj hmab raw roj hmab (xws li methyl vinyl silicone roj hmab), thiab xav kom cov neeg muab khoom siv los muab cov ntaub ntawv ntsuam xyuas nrog qhov purity ntau dua lossis sib npaug li 99.5% thiab qis -molecular siloxanes (D4-D10) Tsawg dua lossis sib npaug li 0.1 mg / kg.
Cov tshuaj tiv thaiv kab mob (fumed silica), nplaim hluav taws (aluminium hydroxide), vulcanizing agents thiab additives yuav tsum yoghluav taws xob- qib / zaub mov- qib, tsis muaj plua plav, caking thiab txawv teb chaws.
Kos npe rau daim ntawv cog lus zoo uas qhia txog xoom- cov nqe lus kam rau ua thiab traceability lub luag haujlwm rau impurities (hlau, plua plav, fibers, roj stains).
2. Kev soj ntsuam nruj nruj
Ua qhov yuav tsum tau soj ntsuam rau txhua pawg ntawm cov ntaub ntawv raw: zoo li (dawb ntawm cov pob dub thiab txawv teb chaws), purity, volatile cov ntsiab lus, thiab hnyav hlau (Pb Tsawg dua los yog sib npaug rau 10 ppm).
Ua cov tshuaj ntsuam xyuas los ntawmFourier Transform Infrared Spectroscopy (FTIR)thiabGas Chromatography (GC)ntawm cov ntaub ntawv tseem ceeb (raws li roj hmab, fumed silica) kom tshem tawm tsis paub impurities.
Tsis lees txais ncaj qha, cais tawm thiab xa rov qab cov khoom tsis tsim nyog; Kev lees txais kev lees paub yog txwv nruj.
3. Raw Material Storage thiab Pretreatment
Khaws cov ntaub ntawv raw hauv akaw, plua plav- pov thawj warehouse nrog qhov kub thiab txias tsis tu ncua (20–25 degree, av noo 40%–60%)kom tsis txhob noo noo nqus, plua plav deposition thiab oxidation.
Sieve hmoov raw cov ntaub ntawv (fumed silica, aluminium hydroxide) los ntawm200-400 mesh sievesua ntej siv los tshem tawm agglomerated hais thiab txhua yam impurities.
Qhuav raw roj hmab thiab additives ntawm70-80℃rau 2-4 teevua ntej siv los tshem tawm cov dej noo adsorbed (cov dej noo ua rau npuas thiab yooj yim entraps impurities).
II. Kev Tswj Ib Cheeb Tsam Ntau Lawm (Kev Tiv Thaiv Sab Nraud Sab Nraud)
Silicone roj hmab rau cov khoom siv fais fab yuav tsum tau ua nyob rau hauv aib puag ncig huvtiv thaiv plua plav, fibers thiab roj stains hauv huab cua los ntawm kev sib xyaw.
1. Rhiav Kev Ua Kom Huv Huv Chav
Teeb ibChav kawm 10,000 huv cheeb tsamrau cov txheej txheem tseem ceeb (batching, mixing, molding), nrog rau cov chav tsis muaj thiab chav da dej cua ntawm qhov chaw tsis huv thiab huv.
Txhim kho lub rooj cob qhia nrog kev ua haujlwm siab - tshem tawm plua plav tawm, dehumidification thiab huab cua purification systems, hloov cov ntxaij lim dej tsis tu ncua, thiab saib xyuas cov hmoov av hauv lub sijhawm.
2. Cov neeg ua haujlwm thiab kev ua haujlwm tshwj xeeb
Cov neeg ua haujlwm yuav tsum hnav cov tshuaj tiv thaiv- zoo li qub, tsis yog- fiber ntau- tshem cov khaub ncaws ua haujlwm huv, plua plav- lub kaus mom dawb, qhov ncauj qhov ntswg thiab hnab looj tes; hnav cov hniav nyiaj hniav kub thiab pleev yog nruj me ntsis txwv.
Noj ibcua da dej rau ntau tshaj 30 vib nas thisua ntej nkag mus rau thaj chaw huv, ntxuav tes thiab tshuaj tua kab mob raws li cov txheej txheem, thiab tsis muaj cov khoom tsis huv raug tso cai coj los rau hauv.
Kov cov ntaub ntawv nrog kev saib xyuas thaum lub sijhawm ua haujlwm kom tsis txhob muaj cov khoom nchuav thiab cov hlau nplaum uas tsim los ntawm cov khoom siv sib txhuam.
3. Kev tu ib puag ncig thiab saib xyuas
Ua kev tu txhua yam ntawm cov cuab yeej, hauv pem teb thiab phab ntsa ua ntej thiab tom qab txhua txoj haujlwm nrog plua plav-dawb ntaub; cov lint zoo tib yam- cov ntaub pua chaw raug txwv.
Ntsuas ib puag ncig cov kab mob thiab cov plua plav plua plav txhua lub lim tiam, thiab ua qhov kev tshuaj ntsuam xyuas cov khoom txawv teb chaws ntawm cov khoom siv txhua hli, nrog cov ntaub ntawv khaws tseg.
III. Cov Khoom Siv thiab Cov Cuab Yeej Tswj Xyuas (Tshem Tawm Sab Hauv Sab Hauv)
Cov khoom siv yog ib qho tseem ceeb zais qhov chaw ntawm impurities, yuav tsum tau tu kom huv si thiab tu tsis tu ncua.
1. Cov khoom siv xaiv thiab tshwj xeeb
Mixers, extruders, txhaj tshuaj molding tshuab thiab pwm yuav tsum yogmob siab raurau zus tau tej cov hluav taws xob silicone roj hmab; Kev sib xyaw nrog lwm cov roj hmab lossis cov ntaub ntawv raug txwv nruj heev.
Polish lub puab phab ntsa, screws thiab chim cov khoom siv rauRa Tsawg dua lossis sib npaug li 0.8 μmkom txo cov khoom seem thiab cov fab tuag.
Xyuas kom zoo sealing ntawm hoppers, pipelines thiab pob qij txha, thiab nruab cov plua plav npog thiab lim cov khoom siv.
2. Nyob rau hauv -Txoj kev ntxuav kom tob
Rau txhua yam khoom hloov pauv / kaw Lub sijhawm ntau dua lossis sib npaug li 4 teev: ncig cov khoom siv tshwj xeeb silicone roj hmab ntxuav kom huv si thiab cov thoob, tom qab ntawd yaug nrog cov roj ntxhia dawb, thiab thaum kawg disassemble screws los ntxuav cov ces kaum tuag nrog tooj liab txhuam (steel hlau txhuam yog txwv tsis pub cov hlau chips).
Pwm: ua cov xuab zeb blasting / ultrasonic tu ntxiv rau dej cawv so ua ntej txhua qhov tsim kom ntseeg tau tias tsis muaj roj hmab seem, roj stains lossis xeb hauv pwm kab noj hniav; Cov kab noj hniav nrog cov tawv chromium plating thiab PVD titanium nitride los txhim kho hnav tsis kam thiab huv.
Kub khiav: ua endoscope tshuaj xyuas txhua hli (qhov tseeb 0.01 hli), thiab kho cov txheej txheem carbonized tam sim ntawd hauv 380℃siab -kub decomposition cub rau 4 teev yog tias pom.
3. Kev saib xyuas thiab kuaj xyuas qhov chaw
Tsim kom muaj qhov system ntawmKev kuaj xyuas cov khoom siv txhua hnub, kev saib xyuas txhua lub limtiam thiab kev kho txhua hli, tshuaj xyuas qhov hnav ntawm cov ntsaws ruaj ruaj, lim cov ntxaij vab tshaus thiab cov ntsia hlau, thiab hloov cov khoom qub kom raws sijhawm.
Siv cov zaub mov-qib/electronic- qib roj rau cov khoom siv lubrication kom tsis txhob muaj cov khoom siv roj hmab; lubrication cov ntsiab lus yuav tsum nyob deb ntawm cov khoom siv.
IV. Kev Tswj Xyuas Txheej Txheem Ntau Lawm (Kev Tiv Thaiv Kev Sib Tsoo thiab Kev Ua qias tuaj hauv cov txheej txheem)
Txhim kho cov txheej txheem tsis zoo thiab kev ua haujlwm kom tsis txhob muaj impurities tsim los ntawm cov txheej txheem nws tus kheej thiab ua ntau- txheej pom.
1. Batching thiab Mixing
Ua batching hauv akaw, tsis zoo - ib puag ncig siabnrog rau qhov tsis siv neeg ntsuas qhov system kom txo tau phau ntawv tiv tauj thiab plua plav ya.
Txais kev noj zaub mov rau kev sib xyaw: ntxiv cov roj hmab nyoos thiab cov neeg sawv cev txhawb nqa ua ntej, tom qab ntawd cov khoom siv ntxiv thiab cov vulcanizing cov neeg ua haujlwm tom qab sib xyaw ua ke, kom tsis txhob muaj impurity tiam los ntawm cov khoom ntxiv decomposition vim lub zos overheating.
Tswj qhov sib tov kub ntawm70-80 degreenrog lub sijhawm sib xyaw kom txaus kom ntseeg tau tias cov khoom siv roj hmab tsis sib xws tsis muaj agglomeration lossis qis dua - sib tov.
2. Lim thiab impurity tshem tawm
Cov khoom siv roj hmab tom qab sib tovyuav tsum tau lim: nruab ntau- txheej lim cov ntxaij lim dej (200–400 mesh) thiab yaj cov ntxaij lim dej ua ntej extrusion / txhaj molding, hloov cov ntxaij lim dej tsis tu ncua thiab tshuaj xyuas cov khoom tsis huv.
Liquid Silicone Rubber (LSR) txais yuav aob-cov khoom ntsuas ntsuas qhov ntsuas + zoo li qub sib xyaw + pom hauv onlinesystem kom ntseeg tau tias sib xyaw ua ke ntawm Cov Khoom A / B thiab tsis muaj impurities.
3. Moulding thiab Vulcanization
Tswj cov molding kub ntawm160-180 degreekom tsis txhob muaj roj hmab carbonization thiab cov pob dub tshwm sim los ntawm qhov kub thiab txias tshaj 190 degree.
Txais yuav ibthawj vulcanization + theem nrab vulcanizationtxheej txheem: thawj vulcanization ntawm 170℃rau 12 feeb, theem nrab vulcanization ntawm 200℃rau 30-45 feeb los txhawb volatilization ntawm qis- cov tshuaj molecular thiab txo cov seem sab hauv.
Xyuas kom txaus tso pa thaum lub sij hawm molding kom tsis txhob npuas entrapping impurities; siv cov pwm tshwj xeeb tso tawm cov neeg ua haujlwm hauv ib qho me me thiab sib xws, thiab cov uas muaj impurities raug txwv.
V. Kev Tshawb Fawb thiab Kev Tshawb Fawb Txog Kev Ua Haujlwm Zoo (kom tsis txhob muaj qhov tsis zoo kawg)
Tsim kom muaj ntau-txuas thiab ntau- txheej txheem tshuaj xyuas los tiv thaiv cov khoom tsis tsim nyog los ntawm kev ntws mus rau cov txheej txheem tom ntej.
1. Hauv -Txoj Kev Tshawb Fawb
Tom qab sib tov: tshuaj xyuas qhov tsos (dawb ntawm cov pob dub thiab txawv teb chaws) thiab sim filterability.
Tom qab molding: kev coj ua100% tag nrho saib xyuaskom tshem tawm cov khoom uas muaj qhov chaw dub, impurities thiab npuas.
TeebQuality Control Points (QCP)rau cov txheej txheem tseem ceeb, nrog rau cov neeg ua haujlwm tshwj xeeb los saib xyuas thiab kaw.
2. Kev tshuaj xyuas cov khoom tiav
Microscopic soj ntsuam: hlais cov qauv rauMetallographic microscope thiab Scanning Electron Microscope (SEM)Kev tshuaj xyuas los xyuas cov impurities sab hauv (qhov loj, qhov ntau, hom).
Hluav taws xob cov khoom: kuajntim resistivity (Ntau dua lossis sib npaug rau 1 × 10¹² Ω·cm), lub zog dielectric thiab ib feem ntawm qhov paug tawm (tsawg dua lossis sib npaug li 5 pc), vim tias impurities yuav txo tau cov khoom rwb thaiv tsev.
Kev txheeb xyuas cov khoom: kuaj xyuas qis-molecular residues ntawm GC-MS thiab cov ntsiab lus hlau hnyav ntawm ICP.
3. Pov tseg cov khoom tsis tsim nyog
Kaw lub tshuab tam sim ntawd thiab tshawb xyuas qhov ua rau thaum pom impurities, cais cov khoom siv tib yam thiab ntsuas qhov cuam tshuam.
Kos, cais, rov ua dua lossis cov khoom tsis tsim nyog; kev sib xyaw nrog cov khoom tsim nyog yog txwv nruj heev; tsim ibimpurity abnormality ledgerlos tshuaj xyuas cov peev txheej thiab siv kev txhim kho txuas ntxiv mus.
VI. Management System Guarantee (Long-Lub Sij Hawm Stability)
1. Tsim kom muaj SOP thiab Kev cob qhia
Formulate covSOP rau Silicone Rubber Impurity Control, qhia meej txog kev ua haujlwm, ntxuav thiab tshuaj xyuas cov qauv rau txhua qhov txuas, nrog rau kev cob qhia cov neeg ua haujlwm tag nrho thiab kev soj ntsuam tom qab.
2. Traceability Management
Txais cov cim batch tshwj xeeb rau cov khoom siv raw, semi-cov khoom tiav thiab cov khoom tiav, sau tag nrho- cov ntaub ntawv txheej txheem los ntawm cov khoom siv raw mus rau cov khoom tiav, thiab paub txogforward traceability thiab rov qab qhov chaw tracing.
3. Kev txhim kho tsis tu ncua
Tsis tu ncua txheeb xyuas cov ntaub ntawv impurity, txheeb xyuas qhov siab -ntau zaus thiab txhim kho kev tswj hwm; qhia cov cuab yeej xws li Six Sigma thiab FMEA los txhim kho cov txheej txheem kev ruaj ntseg.
Los ntawm tag nrho - txheej txheem tswj kev xaiv cov khoom nyoos nruj, ib puag ncig huv, kev tu cov cuab yeej zoo, cov txheej txheem ua kom zoo, kev tshuaj xyuas nruj thiab kaw- kev tswj lub voj, kev sib xyaw ntawm cov khoom tsis huv xws li hlau, plua plav, fibers thiab roj stains tuaj yeem tiv thaiv tau zoo, kom ntseeg tau tias muaj kev purity siab thiab kev ntseeg siab ntawm silicone roj hmab siv rau kev sib tham thiab kev sib tham, kev sib tham, ntev - lub sijhawm ua haujlwm nyab xeeb ntawm cov khoom siv fais fab.
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