# Kev Tiv Thaiv Kev Nyab Xeeb Kev Ruaj Ntseg thiab Tswj Kev Taw Qhia rau Plaub Hom Kev Tiv Thaiv -Corrosion Heating Tubes for Fermentation Projects ## Risk Prevention & Control for 316L Stainless Steel Heating Tube Procurement ### Main Procurement Risks 1. Raw material change risk: Suppliers replace seamless 316L 4 {04 stainless steel} nyias- cov kav dej welded los yog cov hlau siv dua tshiab, ua tsis tiav cov ntaub ntawv soj ntsuam xyuas cov ntaub ntawv ua tiav . 2. Kev ua haujlwm tsis zoo: Vuam tsis muaj tag nrho argon rov qab tiv thaiv tawm hauv cov txheej txheem oxidation; welds hla mechanical polishing thiab theem nrab ncej-weld passivation, tsim cov ntaub ntawv zais pitting corrosion. 3. Cov ntaub ntawv pov thawj kev pheej hmoo: Fake ultrasonic phab ntsa thickness kuaj cov ntaub ntawv thiab cov ntawv ceeb toom hydraulic siab; Cov khoom tiav nrog cov phab ntsa tuab tsis sib luag thiab hauv zos thinning hla kev soj ntsuam los ntawm kev xaiv cov qauv. 4. Txhawb nqa cov khoom siv tsis zoo: Kev xa cov roj hmab zoo tib yam es tsis txhob PTFE cais gaskets; carbon steel flanges thiab brackets sib xyaw rau hauv stainless hlau txhawb pob khoom yam tsis muaj kev kho mob cais. ### Lub Hom Phiaj Tiv Thaiv & Tswj Kev Ntsuas 1. Cov khoom siv raw khoom siv tswj: Xav kom cov neeg muag khoom muab daim ntawv pov thawj zeb xeem rau txhua pawg; ua random thib peb-party spectral tsom xam ntawm tube phab ntsa khoom thaum tuaj txog. Tsis lees txais ib qho khoom siv nrog cov tshuaj tsis sib xws ntawm cov hlau tsis sib xws. 2. Cov chaw ua haujlwm ntawm- qhov chaw tshawb xyuas: Ua ntej qhov kev txiav txim loj, mus xyuas lub rooj cob qhia kom paub tseeb argon shield vuam cov cuab yeej, polishing ntau lawm kab thiab kev sib xyaw pickling -passivation tso tsheb hlau luam; tshawb xyuas cov ntawv pov thawj kev tsim nyog welder. 3. Daim ntawv pov thawj kev soj ntsuam tag nrho: Siv 100% phab ntsa thickness scanning rau tag nrho cov hlua khi, tag nrho cov kev soj ntsuam pom ntawm tag nrho cov welds, thiab random 10% hydraulic siab tuav (1.2 zaug tsim siab rau 30 min). Tsis kam lees txais cov zaj duab xis passivation tsis tiav thiab cov welds unpolished. 4. Txhawb nqa cov khoom xa tuaj saib xyuas: Sau tag nrho cov khoom sib tw PTFE gaskets, stainless hlau flanges thiab cov khoom seem kom meej hauv kev sib tw kev specification; coj cov khoom-los ntawm- cov khoom kuaj thaum lub sijhawm thauj khoom kom tsis txhob sib xyaw cov pa roj carbon steel qhov chaw. 5. Warranty clause constraint: Ntxiv cov nqe lus nplua rau hauv daim ntawv cog lus rau kev hloov khoom siv thiab kev ua haujlwm tsis zoo; stipulate dawb rework lossis tag nrho cov nyiaj rov qab ntxiv rau cov nyiaj them poob haujlwm yog tias cov khoom tsis tsim nyog ua rau muaj kev xeb hauv lub sijhawm lav. ## Kev Tiv Thaiv Kev Nyab Xeeb & Kev Tswj Xyuas Kev Ruaj Ntseg Titanium Heating Tube Kev Muag Khoom ### Cov Khoom Muag Tseem Ceeb 1. Cov khoom siv phom sij txaus ntshai: Mix Qib 1 titanium lossis titanium alloy nrog Qib 2 ntshiab titanium; khaws cov titanium raj ua ke nrog fluorine- muaj tshuaj lom neeg thaum lub sij hawm tsim khoom, tawm hauv irreversible fluoride etching kab ua ntej xa. 2. Ua hla-kev pheej hmoo kis kab mob: txheej txheem titanium thiab carbon hlau ntawm kev sib koom txiav thiab vuam cov cuab yeej tsis muaj kev ywj pheej rau kev cob qhia, qhia txog kev pheej hmoo ntawm cov hlau tsis huv{34} kev cuam tshuam ntawm qhov chaw; electrochemical muaj peev xwm kuaj; xa cov khoom siv hauv cov khoom siv nrog kev khawb dav dav yam tsis muaj kev tshuaj xyuas qhov muag. 4. Ua tiav cov khoom siv tsis txaus: Cov neeg siv khoom txiav cov nqi los ntawm kev txo qis PTFE lub tes tsho cais, aeration assemblies thiab fluoride interlock txuam qhov chaw, ua rau cov khoom tsis tiav. ### Lub Hom Phiaj Tiv Thaiv & Tswj Kev Ntsuas 1. Cov khoom siv raw thiab kev tshawb xyuas kev sib cais ntawm lub rooj cob qhia: Txheeb xyuas cov titanium ua haujlwm ua haujlwm ywj pheej thiab fluorine-cov khoom siv raw khoom tsis pub dawb thaum lub sijhawm kuaj xyuas cov khoom tsim nyog; thov kom tag nrho cov titanium batch xeem cov ntaub ntawv thiab txwv tsis pub siv fluorine reagent siv nyob rau hauv cov khoom tiav cia cov khoom tiav. 2. Cov khoom tiav tag nrho cov kev xeem: Ua 100% nto tej zaum scanning thiab tag nrho cov pom kev soj ntsuam rau milky dawb etching thiab khawb; tsis lees txais ib lub hnab ntim cov raj uas muaj qhov txawv txav uas tsis tshua muaj peev xwm lossis cov kab mob fluoride paug . 3. Ua kom tiav cov khoom xa tuaj: Sau tag nrho cov kev cai PTFE cais qhov chaw, nylon hoisting slings thiab aeration pipeline Cheebtsam raws li cov khoom xa tuaj; txiav tawm cov nyiaj them poob haujlwm rau cov khoom siv uas ploj lawm. 4. Ntau qhov chaw ua pov thawj: Rau kev txiav txim loj loj, npaj cov tuam txhab engineers los ua pov thawj hydraulic nruj thiab muaj peev xwm kuaj ntawm tus neeg muag khoom lub Hoobkas ua ntej xa khoom xa tuaj . 5. Tom qab- kev xa khoom zoo taug qab: Teem lub sijhawm lav 18- hli; qhia meej meej tias cov pob khoom uas muaj cov tshuaj fluoride residual ua ntej xa khoom yuav tsum tau hloov pauv dawb, nrog rau cov nyiaj them poob haujlwm tom qab fermentation batch poob. ## Risk Tiv Thaiv & Tswj rau Quartz Anti-Corrosion Heating Tube Procurement ### Main Procurement Risks 1. Raw material impurity risk: Siv tsawg-purity fused quartz uas muaj cov npuas ntau dhau thiab impurities, yooj yim tsim microcracks nyob rau hauv qhov kub thiab txias 1} cov txheej txheem tsis zoo: { microcracks ntawm xov xaus; hla tas mus li-kev kho qhov kub thiab txias, ua rau ncua kev tawg ntawm kev nthuav dav tom qab kev teeb tsa. 3. Shockproof ntim substandard kev pheej hmoo: Yooj yim nyias nyias ntim ntim tsis tau ua npuas ncauj hauv ob sab phlu, ua rau ntug chipping thiab zais cov kab nrib pleb thaum lub sij hawm ntev - kev thauj mus los nyob deb . 4. Txhawb kev poob siab absorbing accessory rubber omission omission tuab yam tsis muaj kev pheej hmoo. gaskets, nce vibration rupture txaus ntshai tom qab installation. ### Lub Hom Phiaj Tiv Thaiv & Tswj Kev Ntsuas 1. Cov ntaub ntawv pov thawj zoo: Xav kom cov neeg muag khoom muab cov ntaub ntawv pov thawj impurity tivthaiv ntawm quartz ingots; tsis lees txais cov raj uas pom npuas thiab impurities nyob rau hauv kev tshuaj xyuas lub teeb kis tau tus mob. 2. Kev tshuaj xyuas kev siv thev naus laus zis: Paub meej tias lub Hoobkas muaj qhov tsis tu ncua- cov cuab yeej ntsuas kub thiab cov cuab yeej siv pob zeb diamond muag muag; txwv tsis pub txias txias yam tsis muaj kev tshem tawm kev ntxhov siab. 3. Kev tshuaj xyuas kev lees paub ntim khoom: Kos txhua lub thawv ntoo sab nrauv kom puv ua npuas dej tsis zoo thaum lub sijhawm thauj khoom; unpack random qauv rau tag nrho lub teeb kis tau tus mob tawg tshuaj ntsuam xyuas kev puas tsuaj ntawm kev thauj mus los. 4. Ua kom tiav damping accessories xa: Sau ntau-txheej roj hmab poob siab- nqus gaskets thiab yas xov tiv thaiv lub kaus mom raws li tus qauv xa khoom; tsis lees txais cov khoom uas tsis muaj kev txhawb nqa los tiv thaiv- qhov chaw vibration. 5. Kev thauj mus los puas ntsoog raws li kev lav phib xaub: Qhia meej tias txhua qhov kev tawg thiab chipping tsis xws luag tsim thaum lub sijhawm thauj mus los yuav tsum yog tus tswv lag luam, nrog dawb rov- xa khoom tsim nyog. ## Kev Tiv Thaiv Kev Nyab Xeeb & Tswj rau PFA Coated Heater Procurement ### Cov Khoom Tseem Ceeb Risks 1. Txheej txheej txheem txiav cov ces kaum muaj kev pheej hmoo: Txais kev kho thaj chaw thib ob es tsis yog ib qho tseem ceeb -lub sij hawm molding PFA txheej, tsim cov zais tev tawm; siv cov khoom siv tsis zoo fluoroplastic coating raw cov ntaub ntawv ua rau siab -kub laus. 2. Substrate ua ntej- kev kho deficiency txaus ntshai: Hla ua kom tiav xeb tshem tawm thiab ua kom lub ntsej muag ua ntej txheej, ua rau cov txheej txheej tsis zoo adhesion thiab blistering yooj yim . 3. Cov khoom siv hluav taws xob tsis zoo, cov khoom siv hluav taws xob tsis zoo Kev nkag mus khawb los ntawm kev xaiv cov qauv tshuaj ntsuam xyuas, yam tsis muaj kev soj ntsuam tag nrho ntawm qhov chaw. 4. Kev kub siab ua haujlwm tsis tsim nyog: Tsawg- txheej txheej zoo tsis tuaj yeem tiv taus 95℃ntev-lub sijhawm ua haujlwm kub, kev laus thiab tev tawm hauv ib nrab xyoo tom qab ua haujlwm. ### Lub Hom Phiaj Tiv Thaiv & Tswj Kev Ntsuas 1. Txheej txheej ntau lawm kev tshuaj xyuas: Txheeb xyuas tus neeg muag khoom qhov tseem ceeb ib qho - lub sij hawm txheej txheej txheej ntau lawm; txwv tsis pub cov khoom siv kho mob thib ob los ntawm kev nkag mus rau cov khoom xa tuaj. Xav tau zaub mov-qib PFA raw khoom certification. 2. Adhesion and temperature resistance sampling test: Randomly select the finishers for coating peel adhesion test and 100℃tas li-kub aging simulation test ua ntej xa khoom; tsis lees txais cov khoom siv nrog txheej txheej tom qab kev laus. 3. Kev lees paub qhov muag pom pom tag nrho: Ua 100% tag nrho- kev tshuaj xyuas qhov muag pom rau pinholes, hlwv thiab khawb thaum tuaj txog; ntsuas txheej tuab ntawm ntau lub ntsiab lus kom tsis txhob muaj qhov chaw ultra-thin substrate raug cheeb tsam. 4. Txhawb nqa lim thiab cuam tshuam cov khoom siv sib txuam: Paub meej tias xa khoom ntawm cov khoom sib txuam ua ntej- lim thiab ntsuas kub sib cuam tshuam; test linkage function of slow cooling program when incoming inspection. 5. Kev puas tsuaj pov tseg kev lav phib xaub: Qhia meej tias cov neeg muag khoom yuav tsum muab kev taw qhia txog txheej txheem stripping thiab pov tseg PFA txheej thaum cov khoom ncav cuag qhov kawg ntawm lub neej, thiab them rov qab cov nqi kho cov khoom pov tseg ntxiv uas tsim nyog los ntawm cov txheej txheem tsis zoo ua ntej ntxov. ## Universal Hla-Txoj Cai Kev Tswj Xyuas Kev Ruaj Ntseg Siv tau rau Txhua Plaub Lub Cuab Yeej Hluav Taws Xob 1. Ntau- txheej txheej tus neeg xa khoom tsim nyog nkag mus rau cov txheej txheem: Faib cov neeg xa khoom mus rau qhov kev tsim nyog ua ntej, Hoobkas ntawm - qhov chaw tshawb xyuas thiab cov khoom siv me me sib txuas peb txuas; Tsuas yog cov neeg xa khoom hla tag nrho peb theem tuaj yeem koom nrog hauv kev sib tw. 2. Cov qauv kev pom zoo ua ntej kev tsim khoom loj: Lub luag haujlwm kaw cov qauv xa tawm thiab kev kos npe kos npe lees paub ua ntej kev txiav txim loj ntau lawm; tag nrho cov khoom xa tuaj yuav tsum ua raws li cov qauv uas tau lees paub hauv cov khoom siv thiab cov txheej txheem ua tiav. 3. Thib peb- tog rov- kev tshuaj xyuas lub tshuab ua haujlwm: Yog tias cov ntsuas tseem ceeb ua tsis tau ob zaug thaum lub sijhawm tshuaj xyuas, tso cai rau tus kheej tsim nyog thib peb - tog neeg xeem lub koom haum los ua tag nrho cov batch re{109} nrog rau kev kuaj xyuas tag nrho, tus neeg muag khoom. 4. Phased them nyiaj pheej hmoo tsis tuaj yeem: Teem cov nqe lus them nqi segmented (tso ua ntej tsim khoom, ib feem them tom qab lub Hoobkas ua pov thawj, tshuav nyiaj li cas tom qab tau txais kev kuaj xyuas tag nrho); tuav tseg 5%–10% cov nyiaj khaws cia zoo tso tawm tsuas yog tom qab lub sijhawm lav tag nrho tas sijhawm yam tsis muaj qhov tsis zoo . 5. Ua kom tiav cov ntaub ntawv xa tuaj: Cov neeg muab khoom yuav tsum xa tag nrho cov ntaub ntawv pov thawj raw khoom, cov ntaub ntawv xeem, kos duab kos duab thiab kev tswj xyuas kev ua haujlwm thaum lub sijhawm xa khoom; ncua qhov kev them nyiaj tshuav yog tias cov ntaub ntawv tsis tiav{108}} Kev soj ntsuam txhua xyoo ntawm tus neeg xa khoom muaj zog: Tsim kom muaj tus neeg xa khoom cov qhab nia uas suav nrog cov khoom zoo, kev ua tiav, kev xa khoom raws sijhawm thiab tom qab- cov lus teb muag; ncua kev sib tw kev tsim nyog rau cov neeg xa khoom nrog ob xyoos sib law liag ntawm cov qhab nia qis lossis rov ua cov khoom tsis tsim nyog. ## Summary Procurement risks of the four heating tube originate from txawv tsis muaj zog txuas ntawm lawv cov txheej txheem ntau lawm. Stainless hlau tsom rau raw khoom hloov thiab tsis tiav vuam passivation; titanium tube procurement risks center ntawm fluorine cross-kev sib kis thiab sib txawv ntawm cov hlau ua hla- paug; quartz cua sov tube txaus ntshai feem ntau yog nyob rau hauv zais microcracks tsim los ntawm kev ua thiab kev thauj mus los poob siab; PFA coated heaters ntsib qhov kev phom sij loj tshaj plaws ntawm cov txheej txheem tsis zoo thiab tsis zoo adhesion. Los ntawm kev tsim cov khoom lag luam kuaj xyuas tus qauv, ua ntej{116}}cov neeg ua pov thawj kev xa khoom xa tuaj, kev tshuaj xyuas tag nrho thiab cov ntawv cog lus raug nplua, cov tuam txhab fermentation tuaj yeem thaiv cov khoom siv hluav taws xob tsis tsim nyog ntawm qhov chaw yuav khoom, zam kev lag luam loj loj los ntawm cov cuab yeej ua ntej tsis ua hauj lwm thiab fermentation batch muaj kuab paug tom qab cov khoom siv hluav taws xob ruaj khov.
