Ultrasonic Vuam yog dab tsi?

Ib Daim Ntawv Qhia Txog Kev Kho Mob Khoom Siv Khoom

Kuv tau khiav ultrasonic vuam rau txog kaum ob xyoos tam sim no, feem ntau ntawm cov kab kho mob. Catheters, IV teeb, lim vaj tse-koj npe nws. Cov neeg nug kuv txhua lub sijhawm tias qhov kev vuam ultrasonic yog dab tsi, thiab kuv qhia rau lawv tias nws yog siv suab los yaj yas. Siab- zaus vibrations, txoj kev siab tshaj qhov koj tuaj yeem hnov, ua kom muaj kev sib txhuam cua sov ntawm qhov sib koom ua ke. Tsis muaj kua nplaum, tsis muaj screws, tsis muaj mess.

Lub tshuab ua haujlwm li cas

Plaub daim ua lub system. Lub hwj chim muab koj cov phab ntsa tam sim no thiab ua rau nws mus txog 20 lossis 40 kHz {{3}qee zaum 15 lossis 35 nyob ntawm koj daim ntawv thov. Converter zaum saum cov pawg; Nws tau txais piezoelectric ceramics nyob rau hauv uas tig hluav taws xob teeb liab mus rau hauv lub cev txav. Booster nyob rau hauv nruab nrab yog amplifies los yog damp down qhov kev taw qhia. Horn nyob rau hauv qab yeej kov koj ib feem.

Feem ntau lub khw kuv tau ua haujlwm khiav 20 kHz rau qhov loj dua. Thaum koj tab tom ua cov khoom sib txuas me me lossis nyias- cov khoom siv phab ntsa, 40 kHz yog qhov zoo dua -tsawg zog, maj mam rau cov duab zoo nkauj. Branson, Dukane, Herrmann-lawv txhua tus ua khoom siv. Xaiv ib qho thiab lo nrog nws, ua siab ncaj. Txoj kev kawm nkhaus yog qhov siab txaus yam tsis hloov lub platform.

Ib feem mus rau hauv lub fixture, horn los. Lub tshuab ua rau ntawm lub zog preset lossis txoj haujlwm. Kev vibrations pib. Lub zog concentrates ntawm qhov sib koom ua ke uas koj tau txais koj tus thawj coj lub zog lossis kev sib koom ua ke. Yas melts nyob rau hauv ib feem ntawm ib tug thib ob. Horn tuav lub siab thaum cov khoom txias. Ua tiav. Rub mus kuaj nws, txav mus rau qhov txuas ntxiv.

Txheej txheem Parameter

Amplitude tseem ceeb tshaj li cov neeg paub. Nws yog lub ncov - mus rau - qhov siab tshaj plaws ntawm lub ntsej muag horn, ntsuas hauv microns. Feem ntau 20-100 microns nyob ntawm cov khoom thiab qhov sib koom ua ke. Kuv tau pom cov txiv neej crank amplitude los kho qhov tsis muaj zog weld thaum lawv yuav tsum tau saib lawv lub zog tus thawj coj geometry. Cov amplitude siab dua dumps ntau lub zog rau hauv ib feem, paub meej, tab sis nws kuj muaj kev pheej hmoo hlawv lossis cim.

Lub sijhawm vuam ntawm cov khoom siv kho mob luv luv. Lub quarter thib ob, ib nrab thib ob. Tej zaum ib tug thib ob ntawm ib tug loj shear sib koom. Ntev tshaj qhov ntawd thiab tej zaum koj yuav ua ib yam dab tsi tsis ncaj ncees lawm -txawm tias koj qhov kev sib koom tsim xav tau ua haujlwm lossis koj cov khoom tsis raug rau ultrasonic. Kuv tau pom cov neeg khiav ob -thib ob welds sim khaws cov cuab yeej tsim tsis zoo. Tsis xaus zoo.

Tuav lub sij hawm ua kom siab thaum cov yas teeb tsa. Ib nrab koj lub sijhawm weld yog qhov pib tsim nyog. Txiav nws luv luv ntawm nylon lossis PP thiab sib koom ua ke vim tias cov qauv crystalline tseem tsis tau kaw.

Lub zog yog dag dua li nws suab. Tsis txaus thiab lub horn bounces, muab rau koj inconsistent kev sib cuag. Ntau dhau lawm thiab koj tab tom tsoo tus thawj coj lub zog ua ntej nws muaj lub sijhawm los yaj kom zoo. Kuv feem ntau pib ntawm 200-400 N rau qhov chaw kho mob me me thiab hu rau nws los ntawm qhov ntawd.

Kev xaiv khoom

Amorphous Plastics

ABS yog cov khoom siv yooj yim tshaj plaws rau vuam. Lub sijhawm. Kev xa hluav taws xob zoo, qhov rais txheej txheem dav, zam kev txhaum ntau. Yog tias koj tab tom ua qauv lossis qhia qee tus txheej txheem, pib nrog ABS. Polycarbonate welds zoo ib yam nkaus tab sis saib xyuas cov kev ntxhov siab uas seem los ntawm molding-PC nyiam tawg ntawm kev ntxhov siab thaum koj ntaus nws nrog lub zog ultrasonic. Muaj ib pawg ntawm kev kuaj xyuas vaj tse tawg txhua lub sijhawm kom txog thaum peb taug qab nws rov qab mus rau qhov chaw qhov rooj.

Polystyrene thiab acrylic coj zoo. CYROLITE nthuav tawm ntau heev hauv IV connectors thiab ntshav-hu rau daim ntawv thov. Cov ntaub ntawv amorphous soften maj mam dhau qhov kub thiab txias, uas yog raws nraim qhov koj xav tau. Cov yaj ntws, ntub tawm ntawm qhov sib koom ua ke, chains diffuse hla lub interface. Ntxuav welds.

Semicrystalline Plastics

Tam sim no peb nkag mus rau hauv thaj chaw nyuaj. Polypropylene, nylon, acetal, polyethylene -tag nrho cov semicrystalline. Lawv tau xaj cov cheeb tsam molecular uas tawg lub zog ultrasonic es tsis txhob kis nws. Sharp melting point txhais tau hais tias cov khoom mus los ntawm cov khoom mus rau cov kua ceev ceev, ces resolidifies qhov kub tam sim ntawd poob. Lub sijhawm ua haujlwm tsawg heev.

PP thiab PE nyob txhua qhov chaw hauv kev kho mob -syringes, ntim, kaw. Lawv welding, tab sis koj xav tau ntau dua amplitude, nyob ze - thaj chaw teeb tsa (horn ze rau qhov sib koom), thiab txiav cov pob qij txha rau txhua yam uas yuav tsum tau muaj lub foob hermetic. Cov thawj coj hluav taws xob ib leeg yuav tsis txiav nws rau kev xau- nruj PP cov rooj sib txoos. Kuv twb pom ntau tus neeg sim.

Nylon absorbs dej zoo li daim txhuam cev. Cov khoom zaum ntawm lub txee rau ib lub lim tiam yuav sib txawv dua li cov khoom tshiab ntawm lub tshuab molding. Moisture boils ntawm 100℃thaum lub sij hawm weld voj voog thiab tsim porosity nyob rau hauv lub sib koom tes. Qhuav koj cov nylon los yog weld sai.

Siv ceev ceev

Ntawm Cov Khoom Siv Sib xyaw

Cov neeg nug txog kev vuam cov yas sib txawv. Cov lus teb luv luv: feem ntau tsis yog. ABS rau PC ua haujlwm vim tias lawv muaj tshuaj lom neeg sib xws - yog vim li cas PC / ABS sib xyaw muaj nyob. Melt temps yuav tsum tsis pub dhau 40℃F ntawm ib leeg. PEB to PE? Tsis nco qab lawm. Kuv paub tias lawv ob leeg yog polyolefins tab sis lawv yuav tsis sib raug zoo.

iav puv hloov tej yam. Txog li 20% feem ntau yuav pab tau - cov ntaub ntawv sib zog sib kis tau zoo dua. Yav dhau los 30% thiab tsis muaj polymer txaus ntawm qhov sib koom ua ke los ua kom muaj kev sib raug zoo. Nplaim retardants yog teeb meem. Lubricants ntawm qhov chaw yog qhov phem dua. Muaj qhov teeb meem sib kis ib zaug uas taug qab rov qab mus rau silicone pwm tso rau ntawm tus neeg muag khoom qhov chaw. Siv peb hnub los txiav txim.

Kev sib koom tes tsim

Txhua yam hauv ultrasonic vuam los ntawm kev sib koom tsim. Cov pob qij txha tsis zoo tsis welding, lub sijhawm. Koj tuaj yeem tweak qhov ntsuas txhua hnub thiab nws yuav tsis kho qhov tsis txaus ntseeg geometry.

Energy Directors

Tus thawj coj lub zog tus qauv yog daim duab peb sab ridge molded rau hauv ib qho mating nto. Point ntawm daim duab peb sab kov lub ntsej muag ncaj nraim. Cov cheeb tsam me me txhais tau hais tias muaj zog ntau zog. Yas yaj sai sai, ntws tawm mus rau hauv qhov sib koom ua ke . 90℃suav nrog lub kaum sab xis rau cov khoom amorphous. 60℃rau semicrystalline-sarper point compensates kom ceev solidification.

Qhov siab khiav 0.5 mus rau 1.0 mm feem ntau. Qhov me me, me me ED. Lub hauv paus dav sib phim qhov siab rau 90℃tus thawj coj. Ib yam uas kuv pom tas li: pwm coj tawm lub zog thawj coj lub sijhawm. Cov cuab yeej tshiab ua kom zoo welds. Rau lub hlis tom qab, welds tsis muaj zog. Xyuas koj ED geometry thaum qhov ntawd tshwm sim.

Kauj ruam thiab tus nplaig-thiab-Groove

Kauj ruam sib koom ntxiv kev sib tw. Ib feem muaj cov kauj ruam nce, lwm qhov yog qhov sib tw. ED zaum ntawm kauj ruam. Yam khoom tus kheej- nrhiav. Flash mus rau hauv lub clearance es tsis txhob sab nraum. Zoo rau kev siv tshuaj pleev ib ce uas koj tsis xav pom cov kab weld.

Tus nplaig-thiab- zawj coj nws ntxiv nrog tus nplaig protruding haum rau hauv qhov zawj. Muaj flash ntawm ob sab. Downside yog nruj dua tooling tolerances - sib npaug clearance ntawm ob sab ntawm tus nplaig yog ib qho nyuaj rau tuav hauv pwm.

Shear Joints

Shear pob qij txha tsis yog - sib tham tau rau hermetic seals ntawm semicrystalline qhov chaw. Ob phab ntsa nrog kev cuam tshuam me ntsis swb dhau ib leeg thaum vuam. Cov phab ntsa yaj thaum lawv tsom iav ua ke. Nruam smearing nkaus tshem tawm cov voids thiab xau txoj kev.

Weld lub sij hawm khiav 3-4x ntev dua ED pob qij txha. Ntau cov khoom melting, xav tau ntau zog. Kev cuam tshuam feem ntau yog 0.2-0.4 hli ib sab. xoob dhau thiab koj tsis tau tag nrho yaj. nruj dhau thiab cov khoom yuav tsis sib sau ua ke rau vuam. Dimensional tswj tseem ceeb.

Lim vaj tse, kua reservoirs, txhua yam tuav lub siab-shear sib koom. Kuv yeej tsis tau txais ib qho kev ruaj ntseg hermetic foob ntawm PP nrog tus thawj coj lub zog ib leeg. Qee tus neeg hais tias lawv muaj. Kuv tsis tau pom nws tuav hauv ntau lawm.

Cov ntawv thov hauv Kev Kho Mob

IV teev yog cov qhob cij thiab butter. Drip chambers, connectors, spikes, ports-tag nrho cov welded. Tsis muaj adhesives txhais tau tias tsis muaj biocompatibility kev txhawj xeeb txog leaching lossis residue. Ib qho IV txheej yuav muaj plaub los yog tsib welded pob qij txha. High -rotary systems tuaj yeem khiav ntau txhiab toj ib teev.

Lim yog loj heev. Ntshav lim, lim cartridges, lim pa. Membrane tau embedded rau hauv tsev. Weld seals lub perimeter yam tsis muaj kev puas tsuaj rau cov lim xov xwm. Txhua txoj kev xau thiab cov lim dej tsis muaj txiaj ntsig - cov dej hla dhau es tsis txhob hla. Shear pob qij txha, 100% kev tshuaj xyuas, kev tshawb fawb txog kev muaj peev xwm. FDA tsis cuam tshuam nrog cov khoom no.

Kev xa tshuaj pheej loj zuj zus tuaj. Insulin cwjmem, pib-injectors, inhalers. Ntau subassemblies rau ib lub cuab yeej. Wearable thaj ua rau thaj nrog nyias daim nyias nyias cov ntsaws ruaj ruaj- qhov ntawd yog qhov uas torsional vuam tshuab ci. Tsis tu ncua linear vibration tuaj yeem puncture nyias zaj duab xis. Kab rov tav oscillation qauv ntawm torsional units yog softer.

Diagnostic cartridges khiav ceev. Test strip vaj tse, qauv khob, reagent qhov dej. Cycle lub sij hawm nyob rau hauv ib tug thib ob. Txoj hauj lwm yog qhov tseem ceeb vim tias cov khoom no me me thiab kev ua siab ntev nruj. Robotic tuav pub qhov chaw rau cov chaw vuam tshwj xeeb.

Kev Tswjhwm Zoo thiab Txheej Txheem

Niaj hnub welders sau txhua yam. Lub sijhawm weld tiag tiag, lub zog xa tawm, lub zog siab tshaj plaws, kev sib tsoo deb. Teeb tsa koj cov kev txwv thiab lub tshuab chij txhua yam sab nraum lub qhov rais. Peb khiav SPC kab kos ntawm txhua qhov sib koom ua ke tseem ceeb. Catch ib tug qauv ua ntej nws yuav tsis lees paub.

Pull test validates lub weld. Tensile xeem fixtures lob ib feem thiab ntsuas lub zog tawg. Khiav cov qauv thaum pib ntawm kev ua haujlwm, ib ntus thoob plaws hauv kev tsim khoom, kawg ntawm kev ua haujlwm. Kev ntsuam xyuas tawg rau siab- tuav cov rooj sib txoos- ua kom tiav, nce siab kom txog thaum nws ua tsis tiav, sau qhov twg thiab qhov twg PSI.

Hla - ntu qhia koj tias muaj dab tsi tshwm sim hauv qhov sib koom ua ke. Mount nws nyob rau hauv epoxy, txiav los ntawm weld, polish saum npoo, saib nyob rau hauv magnification. Ua tiav yaj thiab ntws zoo li homogeneous. Tsis tiav fusion qhia pom qhov sib cuam tshuam. Porosity txhais tau hais tias ya raws lossis kab mob. Ua qhov no thaum lub sij hawm kev loj hlob los optimize parameters. Ua nws ib ntus hauv kev tsim khoom kom paub tseeb.

Kev daws teeb meem

Welds tsis muaj zog

Thawj qhov kuv txheeb xyuas yog lub zog tus thawj coj geometry. Khaws ib feem, saib nws hauv qab qhov loj. Puas yog lub ntsiab lus ntse lossis nws tau sib npaug? Hnav pwm puag ncig EDs thiab tsis muaj leej twg ceeb toom kom txog thaum rub cov lej ntsuas poob.

Qhov thib ob yog horn contact. Kev sib cuag tsis sib xws txhais tau hais tias kev xa hluav taws xob tsis sib xws. Misalignment muab tag nrho lub zog ntawm ib sab ntawm kev sib koom ua ke. Tshawb nrhiav cov cim pov thawj ntawm ntu -lawv yuav qhia koj qhov twg lub horn yog kov tiag tiag.

Peb yog cov khoom batch variation. Tshiab ntau cov resin, weld tsis ua hauj lwm nag hmo tsis ua hauj lwm hnub no. Regrind nyob rau hauv lub mix hloov flow yam ntxwv. Tau hlawv rau qhov no ib zaug thaum tus neeg muag khoom pib ntxiv 15% regrind yam tsis tau qhia peb.

Lub sijhawm ntawm molding thiab vuam tseem ceeb heev. Cov khoom kub tshiab tawm ntawm lub tshuab coj txawv dua li qhov chaw txias uas zaum hauv ib lub thoob thaum hmo ntuj. Standardize nws los yog kho rau nws.

Teeb meem Flash

Ntau dhau flash feem ntau txhais tau tias muaj zog ntau dhau. Rov qab tawm amplitude ua ntej. Tom qab ntawd weld lub sijhawm. Ces quab yuam. Ib qho sib txawv ntawm ib lub sijhawm lossis koj yuav tsis paub tias qhov twg kho tau tiag tiag.

Kev sib koom ua ke tuaj yeem pab tau thiab. Flash ntxiab-ib qho chaw so me me nyob ib puag ncig qhov chaw sib txuas- ntes cov khoom txav chaw. Cov kauj ruam sib txuas zais flash hauv qhov sib txawv clearance. Ua-hauv cov kev daws teeb meem sim kho nws nrog cov tsis muaj.

Cracking thiab Kev puas tsuaj

PC tawg ntawm kev ntxhov siab. Lub kaum ntse ntse, rooj vag vestiges, molded - nyob rau hauv kev ntxhov siab los ntawm txias gradients -txhua qhov chaw pib tawg. Qee lub sij hawm qhov kho yog hloov cov molding tsis, tsis yog vuam tsis.

Cov khoom txias yog nkig. Warehouse hits 50℃F thaum lub caij ntuj no, qhov chaw tuaj txias, lawv tawg es tsis txhob yaj. Cia lawv sov los yog muab lub rhaub rau hauv kab ua ntej ntawm tus welder.

Horn marks ntawm cov khoom pleev xim? Txo lub zog quab yuam, txhuam lub ntsej muag lub ntsej muag, lossis muab cov yeeb yaj kiab Mylar nyias ntawm lub horn thiab ib feem. Cov yeeb yaj kiab siv qhov kev tsim txom es tsis txhob siv cov yas.

Cov cuab yeej tu

Horn mob yog txhua yam. Kev tawg, pitting, hnav grooves-txhua yam cuam tshuam rau kev hloov hluav taws xob. Visual tshuaj xyuas txhua hnub, impedance xyuas txhua lub lim tiam. Lub suab nrov txawv thaum nws khiav -koj tuaj yeem hnov ​​nws hloov. Hloov ua ntej nws ua tsis tau zoo. Kuv twb pom tawg horns puas converters thiab qhov ntawd yog ib tug kim kho.

Cov converters degrade thaum lub sij hawm. Piezo ceramics poob efficiency. Cov zis tso tawm maj mam txaus uas koj tsis pom txog thaum welds pib ua tsis tiav. Periodic output ntsuas catches qhov poob. Hloov ntawm lub sij hawm es tsis tos rau qhov ua tsis tiav.

Fixtures hnav. Qhov chaw zaum hauv tib qhov chaw, yas rubs tiv thaiv hlau, qhov ntev drift. Tshawb xyuas kev kos duab specs ib ntus. Rov tsim kho lossis hloov thaum muaj kev zam txim qhib. Ib qho kev hnav khaub ncaws hloov pauv txoj hauj lwm, uas hloov cov vuam zoo, thiab koj yuav tau caum cov teeb meem phantom yog tias koj tsis ntes nws.

Regulatory Notes

ISO 13485 Kev tswj hwm zoo rau cov cuab yeej kho mob. Cov txheej txheem validation-IQ, OQ, PQ- qhia tau hais tias koj txoj kev siv vuam tsis tu ncua ua rau cov khoom siv tau. Cov ntaub ntawv txhua yam. Kev tswj hwm kev hloov pauv siv rau cov khoom siv, cov cuab yeej, cov khoom siv. Hloov ib yam uas tsis muaj ntaub ntawv tsim nyog thiab koj tau txais qhov tsis sib haum xeeb.

Ultrasonic vuam ua haujlwm zoo hauv chav huv. Tsis muaj vapors, me me me me, tsis muaj kua nplaum los yog txaws. Cov khoom siv sib xyaw ua ke yooj yim rau hauv qhov chaw tswj hwm. Tsuas yog khaws lub sijhawm saib xyuas thiab tsis txhob kis kab mob nrog lub tshuab roj lossis txiav roj.

Muab Kev Xav

Xaiv koj cov khoom raws li daim ntawv thov ua ntej. Tom qab ntawd txheeb xyuas seb nws welds. ABS thiab PC muab lub qhov rais dav tshaj plaws rau koj. PP thiab nylon xav tau kev saib xyuas ntau dua tab sis lawv ua tau. Shear pob qij txha rau hermetic seals ntawm cov ntaub ntawv semicrystalline. Energy directors rau feem ntau txhua yam.

Tau txais koj tus qauv tsim ua ntej koj yuav cov cuab yeej. Txhim kho qhov kev sib koom ua ke tsis zoo tom qab pwm txiav yog kim thiab ntxhov siab. Xa cov qauv mus rau koj tus neeg muab khoom siv rau kev sim vuam. Lawv ua qhov no txhua hnub- cia lawv pab koj nrhiav qhov tsis raug.

Cov teeb meem feem ntau rov qab mus rau qhov pib: qhov ntev, qhov sib xws ntawm cov khoom siv, cov khoom siv. Kev saib xyuas zoo nkauj yuav tsis pab yog tias koj tus thawj coj lub zog raug muab sib dhos lossis koj lub rooj sib tw hnav. Master cov hauv paus ntsiab lus thiab lwm yam hauv qab no.