cov ntaub ntawv yas yog siv thoob plaws hauv ntau qhov kev lag luam. Cov yam ntxwv ntawm cov ntaub ntawv polymeric, tom qab melting, kom tau cov neeg kho tshuab rigidity thiab lub zog, yog dav siv tsis tau tsuas yog nyob rau hauv lub tsim ntawm ntau yam khoom, tab sis kuj thaum nqa tawm kho nyob rau hauv tsev..
Qhov kev sib txuas ntawm cov ntaub ntawv yas, hu ua vuam, yog lub suab nrov tshaj plaws thiab kev siv nyiaj txiag los kho ntau yam khoom. Vuam yas tso cai rau koj los tsim cov pob qij txha muaj zog. Ntxiv mus, cov txheej txheem thev naus laus zis thiab cov cuab yeej siv rau vuam tsis yooj yim tshwj xeeb rau kev siv hauv tsev.
Basic Vuam Methods
Nrog txhua yam kev siv thev naus laus zis ntawm cov txheej txheem vuam, cov txheej txheem vuam yas tuaj yeem muab faib ua ob pawg loj:
- txias vuam yog ua nrog kev pab los ntawm cov tshuaj tshwj xeeb uas txhawb kev sib txuas ntawm cov khoom yas,tsis muaj melting nto;
- vuam kub yog kev sib xyaw ntawm cov yas ntawm cov qib molecular, thaum cov npoo tau rhuab mus rau ib nrab-kua lub xeev.
Txoj haujlwm ntawm kev sib koom ua ke, ntawm txhua yam, yog tsim kom muaj kev sib cuag ntawm cov ntaub ntawv polymeric los ntawm kev hloov pauv ntawm ib yam khoom mus rau lwm qhov. Yas vuam tuaj yeem ua nrog lossis tsis muaj cov khoom siv tshwj xeeb.
Cold welding method
Nrog rau kev txhim kho ntawm kev lag luam tshuaj, kev vuam txias rau cov yas tau txais kev nyiam tshaj plaws tsis yog ntawm cov kws tshaj lij xwb, tab sis kuj yog cov neeg zoo tib yam uas kho cov khoom hauv tsev. Nyob rau hauv txoj cai, lub npe no yog ntau nyob rau hauv txoj kab nrog lub sij hawm scientific, uas qhia txog hom compound ntawm cov ntaub ntawv polymeric. Feem ntau, qhov no yog ib lub tshuab rau gluing yas qhov chaw uas siv tshuaj active tshuaj.
Tam sim no, manufacturers tsim peb hom khoom tsim nyog rau vuam:
- Ib feem sib xyaw ua ke zoo li cov kua nplaum ua haujlwm yooj yim. Lub versatility ntawm no muaj pes tsawg leeg tso cai rau koj mus welding yuav luag txhua yam ntaub ntawv polymeric zoo. Cov nplaum nplaum uas feem ntau yog siv rau vuam yas hauv tsev.
- Ob-cov khoom nplaum muaj cov epoxy resin thiab hardener, uas tau muab rau cov neeg siv khoom hauv cov thawv cais. Kev sib xyaw ntawm cov khoom yog nqa tawm hauv ib qho kev faib ua feem,ua ntej txoj haujlwm tiav.
- Cov pas nrig reagent muaj lub plhaub sab nraud ntawm cov tawv tawv thiab lub plhaub sab hauv uas muaj epoxy resin. Tom qab txiav tawm qhov xav tau ntawm tus pas nrig, nws yuav tsum tau ua tib zoo kneaded nrog koj cov ntiv tes kom txog thaum lub homogeneous yas loj tsim.
Txhua txoj haujlwm ntawm kev npaj cov nplaum nplaum yuav tsum tau ua nruj me ntsis raws li cov chaw tsim khoom cov lus qhia.
Cold Vuam Technology
Ua ntej welding yas, nws yog ib qho tsim nyog los npaj qhov chaw ntawm cov khoom kom koom nrog. Rau lub hom phiaj no, nws yog ib qho tsim nyog yuav tau ua cov npoo ntawm cov khoom siv abrasive (sandpaper, ntaub ntawv). Qhov kev kho no ua rau nws muaj peev xwm tsim tau qhov roughness, uas ua rau kom cov adhesion ntawm cov khoom yas.
vuam tshuab yog raws li hauv qab no:
- Tom qab kev kho mob ua ntej, ua ntej kev ua haujlwm tiav, nws yog qhov tsim nyog yuav tsum tau degrease qhov chaw ntawm cov khoom kom koom nrog. Yuav luag txhua yam kuab tshuaj cawv tuaj yeem siv rau qhov no.
- Ntxiv mus, raws li cov lus qhia, cov nplaum nplaum yog siv rau ntawm cov npoo ntawm cov khoom kom koom nrog.
- Ntoj yog nruj nruj rau ib leeg. Ntxiv mus, compression yuav tsum tau nqa tawm kom txog thaum muaj pes tsawg leeg yog solidified.
- Tom qab cov khoom tau qhuav tag, cov txheej txheem vuam yas raug txiav txim siab tiav.
Qhov txiaj ntsig tseem ceeb ntawm kev sib koom ua ke txias yog qhov muaj peev xwm ua tau zoo ntawm cov khoom siv sib txawv, thaum ntxivtsis muaj khoom siv. Qhov tsis zoo ntawm txoj kev yog qhov tsis tshua muaj kev vibration ntawm lub seam, yog li kev siv cov vuam txias yog txwv nyob rau hauv cov txheej txheem txav.
YPlastic kub welding
Txoj kev kub ntawm vuam cov ntaub ntawv yas yog raws li kev sib cuam tshuam ntawm molecular ntawm molten nto mus rau lub xeev khov. Hauv qhov no, nws yog ib qho tsim nyog yuav tsum coj mus rau hauv tus account qhov xwm txheej ntawm cov tshuaj tiv thaiv ntawm polymer rau qhov kub thiab txias. Raws li lub hauv paus ntsiab lus no, cov ntaub ntawv yas muab faib ua cov thermoplastics thiab cov thermoplastics.
Thermoplastics tsis hloov lawv cov kev ua tau zoo thiab tshuaj lom neeg, txawm tias rov hloov mus rau lub xeev molten. Thiab qhov tseem ceeb tshaj plaws, uas, rov qab los tom qab txias rau qhov qub hardness, cov ntaub ntawv tsis poob lawv lub zog. Tsis zoo li cov thermoplastics, cov thermoplastics, rov qab mus rau lawv lub xeev qub, yuav luag tag nrho lawv cov khoom yas. Xws li cov tshuaj tiv thaiv ntawm cov khoom tsis tso cai rau nws rov qab mus rau hauv lub viscous theem, tag nrho poob lub zog. Feem ntau cov yas yog cov thermoplastics.
Cov txheej txheem kub welding
Nyob ntawm txoj kev muab lub zog thermal rau thaj tsam ntawm kev sib txuas ntawm cov ntaub ntawv polymeric, muaj cov nram qab no hom kub vuam:
- kub gas kwj;
- nrog cov cuab yeej tshwj xeeb cua sov;
- raug rau cov npoo ntawm cov khoom melted additive;
- siv ultrasonic ntws;
- siv infrared lossis laser teeb;
- cua sov sib koom los ntawm kev sib txhuam;
- raug rau hluav taws xob ntau zaus.
Thawj peb txoj kev siv tau zoo thaum vuam yas nrog koj tus kheej tes hauv tsev. Cov seem feem ntau yog siv ncaj qha rau hauv kev lag luam hauv kev tsim khoom.
Kub gas welding
Cov sib koom ua ke tuaj yeem ua kom sov nrog lub tshuab hluav taws xob siv nitrogen lossis argon. Tab sis qhov kev nyab xeeb tshaj plaws thiab muaj txiaj ntsig zoo tshaj plaws yog qhov vuam ntawm cov yas nrog lub tshuab ziab plaub hau, vim tias cov npoo ntawm cov khoom sib koom tau ua kom sov los ntawm cua kub.
Kev tsim khoom thiab kho cov khoom yas yog ua los ntawm cov phom cua kub hauv tsev. Structurely, cov khoom siv no rau vuam yas yog teem rau tib txoj kev. Cov tshuab plaub hau muaj lub zog siab, kev hloov kho uas tau ua tiav, thiab tseem muaj ntau lub zog ntxiv thiab ntau yam txuas.
Vuam yas nrog rab phom cua kub yog ua nyob rau hauv ntau theem:
- hom yas yog txiav txim siab, raws li qhov ntsuas cua sov xaiv, nrog rau lub nozzle haum rau kev ua haujlwm.
- Cov npoo ntawm cov khoom yuav tsum tau koom nrog yog ntxuav thiab degreased.
- Cov khoob khoob khov kho kom lawv tsis txav thaum ua haujlwm.
- Qhov sib koom ua ke yog rhuab mus rau lub xeev molten, uas cov ntaub ntawv sib koom ua ke.
- Tom qab tsim cov vuam, cov khoom yuav tsum txias hauv cov xwm txheej ntuj. Tsis pom zoo ua kom txias ntxiv.
- Tam sim noqhov kawg ntxuav ntawm seam.
Heater resistance welding
Hom yooj yim tshaj plaws ntawm cov yas vuam hauv tsev yog qhov cua sov ncaj qha ntawm cov npoo ntawm cov khoom nrog lub cuab yeej kub. Cov txheej txheem thev naus laus zis ntawm kev sib cuag vuam yog suav tias yog qhov yooj yim tshaj plaws thiab siv tau yooj yim tshaj plaws nyob rau hauv cov xwm txheej hauv tsev, vim nws tsis tas yuav siv cov cuab yeej ntse.
vuam tuaj yeem muab faib ua ob kauj ruam tseem ceeb:
- Fusing cov npoo ntawm qhov yuav tsum tau koom.
- Nqus compression ntawm molten nto thiab tuav kom txog thaum ua tiav txias.
Lub sijhawm ntawm cov haujlwm no yuav tsum tsawg kawg kom cov khoom tsis muaj sijhawm txias. Txwv tsis pub, qhov zoo ntawm qhov vuam yuav tsis txaus.
Nyob hauv tsev, rau kev kho me me, lawv feem ntau siv cov hlau yooj yim uas muaj cov nozzles tshwj xeeb.
YSiv cov khoom siv welding
Txhawm rau kom muaj zog thiab zoo ntawm cov seam, thaum koom nrog cov ntaub ntawv yas, cov khoom siv tshwj xeeb yog siv dav. Plastic pas nrig lossis strips yog siv los ua cov khoom zoo li no.
Ntxiv ib qho ntxiv rau cov khoom siv vuam zoo heev txhim kho cov txheej txheem vuam siv cua kub cua sov. Cov xwm txheej tseem ceeb rau kev sib txuas zoo ntawm cov yas yog kev sib txuas lus ntawm cov khoom siv ntxiv thiab cov khoom siv polymer.
Tsis tas li, qhov kev xaiv zoo heev rau kev siv cov khoom muab tub lim yog siv lub vuam tes extruder. Cov khoom siv thermomechanical no, uas zoo li rab phom, ua ntej ua kom sov cov khoom siv polymer mus rau lub xeev khov, thiab tom qab ntawd cia li extrudes cov khoom ntxiv rau ntawm qhov chaw kom koom nrog.
Vuam ntawm cov khoom yas yog siv dav hauv kev cob qhia ntau lawm thiab hauv tsev. Kev siv tshuab ntawm cov txheej txheem vuam yog ib qho yooj yim rau tus tswv txawm rau tus neeg tsis paub, thaum nws yuav tsum nco ntsoov ua raws li kev ntsuas kev nyab xeeb rau kev ua haujlwm.
