Plastic weldingiri welding yemidziyo yepurasitiki yakapera, uye inotsanangurwa muISO 472 senzira yekubatanidza nzvimbo dzakapfava dzezvinhu, kazhinji nerubatsiro rwekupisa (kunze kwekunyungudutsa).Welding ye thermoplastics inoitwa mumatanho matatu anoteedzana, anoti kugadzirira kwepamusoro, kushandiswa kwekupisa uye kudzvanywa, uye kutonhora.
Kupisa gasi welding
Kupisa gasi welding, inonziwo hot air welding, iplastic welding technique inoshandisa kupisa.Pfuti yekupisa yakanyatsogadzirwa, inonzi hot air welder, inogadzira jeti remhepo inopisa inopfavisa mativi ese kuti abatanidzwe uye tsvimbo yepurasitiki yekuzadza, iyo yose inofanira kunge yakafanana kana yepurasitiki yakafanana.(Welding PVC kune acrylic inosiyana nemutemo uyu.)
Mhepo inopisa / gasi welding inzira yakajairika yekugadzira zvinhu zvidiki senge matangi emakemikari, matangi emvura, zvinopisa kupisa, uye pombi dzemvura.
Munyaya yewebhu uye mafirimu tsvimbo yekuzadza haigone kushandiswa.Mapepa maviri epurasitiki anopiswa kuburikidza negasi rinopisa (kana chinhu chekudziya) uye anopetwa pamwechete.Iyi inokurumidza welding process uye inogona kuitwa nguva dzose.
Speed tip welding
Nekumhanyisa welding, iyo welder yepurasitiki, yakafanana nesimbi yekushongedza muchitarisiko uye wattage, inoiswa nechubhu yekudyisa yepurasitiki weld tsvimbo.Iyo yekumhanyisa muromo inopisa tsvimbo uye substrate, panguva imwe chete iyo inodzvanya yakanyungudutswa weld tsvimbo panzvimbo.Bhanga repurasitiki rakapfava rinoiswa mujoini, uye zvikamu uye weld rod fuse.Nemamwe marudzi epurasitiki senge polypropylene, iyo yakanyungudutswa welding tsvimbo inofanirwa "kusanganiswa" nehafu-yakanyungudika base zvinhu zviri kugadzirwa kana kugadziriswa.Aya matekiniki ewelding akavandudzwa nekufamba kwenguva uye akashandiswa kweanopfuura makore makumi mashanu nenyanzvi dzekugadzira mapurasitiki ekugadzira uye vanogadzirisa pasi rese.Speed tip welding nzira inokurumidza kukurumidza welding nzira uye nekudzidzira inogona kushandiswa mumakona akasimba.Imwe vhezheni yetipi yekumhanyisa "pfuti" isimbi yekunyungudutsa ine yakafara, muromo wakatsetseka inogona kushandiswa kunyungudutsa weld joint uye filler zvinhu kugadzira bond.
Extrusion welding
Extrusion welding inobvumira kushandiswa kwemahombe welds mune imwechete weld pass.Ndiyo nzira yakasarudzika yekubatanidza zvinhu pamusoro pe6 mm gobvu.Welding tsvimbo inodhonzwa mune diki ruoko rwakabatwa epurasitiki extruder, plasticized, uye kumanikidzwa kubuda extruder kupesana nezvikamu zvakabatanidzwa, izvo zvakapfaviswa nejeti remhepo inopisa kuti zvibvumirane kuti zviitike.
Bata welding
Izvi zvakafanana nespot welding kunze kwekuti kupisa kunopihwa nethermal conduction yemapinger tips pachinzvimbo chemagetsi.Zvikamu zviviri zvepurasitiki zvinounzwa pamwechete uko matipi anopisa anoapinza, achinyunguduka uye achibatanidza zvikamu mukuita.
Hot plate welding
Zvinechekuita nekubata welding, hunyanzvi uhu hunoshandiswa kubatanidza zvikamu zvakakura, kana zvikamu zvine yakaoma weld joint geometry.Zvikamu zviviri zvinosungirirwa zvinoiswa mumudziyo wakasungirirwa pamahwendefa maviri anopikisana emuchina.Indiro inopisa, ine chimiro chinoenderana neweld joint geometry yezvikamu zvinosungirirwa, inofambiswa panzvimbo pakati pezvikamu zviviri.Mahwendefa maviri anopikisana anofambisa zvikamu kuti zvibatane nendiro inopisa kusvikira kupisa kwanyorovesa nzvimbo dzekusangana kusvika panzvimbo yekunyunguduka kwepurasitiki.Kana mamiriro aya aitwa ndiro inopisa inobviswa, uye zvikamu zvinotsikirirwa pamwe chete uye zvinobatwa kusvikira chibatanidza che weld chatonhorera uye chakasimba zvakare kugadzira chisungo chechigarire.
Kupisa-ndiro welding midziyo inowanzodzorwa pneumatically, hydraulically, kana zvemagetsi nema servo motors.
Maitiro aya anoshandiswa weld mota pasi pe hood zvikamu, mota yemukati trim zvikamu, zvekurapa kusefa michina, yevatengi midziyo yemidziyo, uye zvimwe zvinhu zvemukati zvemotokari.
High frequency welding
High Frequency welding, inozivikanwawo seDielectric Sealing kana Radio Frequency (RF) Heat Sealing tekinoroji yakakura kwazvo yanga iripo kubva kuma1940s.High frequency electromagnetic waves muRadio Frequencies inogona kupisa mamwe mapolymer kusvika pakupfavisa mapurasitiki ekujoinha.Mapurasitiki anopisa, pasi pekumanikidzwa anosungirirwa pamwe chete.Kupisa kunogadzirwa mukati mepolymer nekukasira kudzokororwa kwemamwe makemikari dipoles epolymer, zvinoreva kuti kupisa kunogona kuiswa munzvimbo, uye maitiro anogona kuenderera.
Induction welding
Kana chidziviriro chemagetsi, sepurasitiki, chakaiswa nechinhu chine high conductivity yemagetsi, senge simbi kana carbon fibers, induction welding inogona kuitwa.Iyo welding appatus ine induction coil iyo inopihwa simba neredhiyo-frequency magetsi emagetsi.Izvi zvinogadzira munda wemagetsi unoshanda pane yemagetsi conductive kana ferromagnetic workpiece.Mune yemagetsi conductive workpiece, iyo huru yekudziya mhedzisiro ndeye resistive kudziyisa, izvo zvinokonzerwa nemhepo inoshandiswa inonzi eddy currents.Induction welding yekabhoni fiber yakasimbisa thermoplastic zvinhu tekinoroji inowanzoshandiswa mune semuenzaniso indasitiri yemuchadenga.
Mune ferromagnetic workpiece, mapurasitiki anogona kupinza-welded nekuagadzira nesimbi kana ferromagnetic makomisheni, anonzi susceptors.Aya ma susceptors anotora magetsi emagetsi kubva kune induction coil, anopisa, uye anorasikirwa nekupisa simba kune izvo zvakatenderedza nekupisa conduction.
Jekiseni welding
Jekiseni welding yakafanana/yakafanana neextrusion welding, kunze kwekunge, uchishandisa mamwe matipi pane handheld welder, munhu anogona kupinza muromo mumakomba epurasitiki akaremara ehukuru hwakasiyana uye oasunga kubva mukati kunze.Chakanakira ndechekuti hapana kupinda kunodiwa kuseri kwegomba rakaremara.Iyo imwe nzira ndeye chigamba, kunze kwekuti chigamba chacho hachikwanise kugadzirwa jecha nepurasitiki yakatenderedza yepakutanga kusvika pahukobvu hwakafanana.PE uye PP ndiyo inonyanya kukodzera kune rudzi urwu rwekuita.Iyo Drader injectiweld muenzaniso wechishandiso chakadaro.
Ultrasonic welding
Mune ultrasonic welding, yakakwira frequency (15 kHz kusvika 40 kHz) yakaderera amplitude vibration inoshandiswa kugadzira kupisa nenzira yekukwesha pakati pezvinhu zvinobatanidzwa.Iyo interface yezvikamu zviviri zvakagadzirirwa kutarisisa simba reiyo yakanyanya weld simba.Ultrasonic inogona kushandiswa pane zvinenge zvese zvepurasitiki zvinhu.Ndiyo inokurumidza kupisa sealing tekinoroji iripo.
Friction welding
Mukukweshana, zvikamu zviviri zvinofanirwa kuunganidzwa zvinokwizwa pamwe pazasi (kazhinji 100–300 Hz) uye yakakwirira amplitude (kazhinji 1 kusvika 2 mm (0.039 kusvika 0.079 mukati)) pane ultrasonic welding.Iko kukweshana kunokonzerwa nemafambiro akasanganiswa nekutsikirira pakati pezvikamu zviviri zvinogadzira kupisa kunotanga kunyungudutsa nzvimbo dzekubatana pakati pezvikamu zviviri.Panguva ino, zvinhu zvepurasitiki zvinotanga kuumba mitsara inopindirana, izvo zvinoguma nekusimba kwakasimba.Pakupedzwa kwekufamba kwekuzunguza, zvikamu zvinoramba zvakabatanidzwa kusvika iyo weld joint yatonhora uye purasitiki yakanyunguduka yasimba zvakare.Iko friction movement inogona kuva mutsara kana orbital, uye dhizaini yekubatanidza yezvikamu zviviri inofanira kubvumira kufamba uku.
Spin welding
Spin welding imhando yefrictional welding.Nekuita uku, chimwe chikamu chine round weld joint chinoitwa chakamira, ukuwo chikamu chekusangana chinotenderedzwa nekumhanya kukuru uye chichitsikirirwa pane chakamira.Kukweshana kuri pakati pezvikamu zviviri izvi kunounza kupisa.Kana majoining surfaces asvika paita semi-molten state, chinotenderera chinomiswa kamwe kamwe.Simba pazvikamu zviviri izvi zvinochengetedzwa kusvika weld joint yatonhodza uye yasimba zvakare.Iyi inzira yakajairika yekugadzira mavhiri epurasitiki epasi- uye epakati-basa, semuenzaniso, ematoyi, ngoro dzekutengesera, mabhini ekudzokorodza, nezvimwewo. Iyi nzira inoshandiswawo kubatanidza mazaru akasiyana ezviteshi mumotokari pasi pemidziyo yehodhi.
Laser welding
Iyi nzira inoda kuti chikamu chimwe chive chekufambisa kune danda relaser uye chimwe chikamu chinonyura kana chekuputira pachiratidziro kuti chitore danda.Izvo zvikamu zviviri zvinoiswa pasi pekumanikidzwa apo laser beam inofamba ichitevedza mutsara wekubatanidza.Danda rinopfuura nepakati pekutanga uye rinotorwa neimwe kana coating kuti riburitse kupisa kwakaringana kupfavisa chimiro kugadzira weld yekusingaperi.
Semiconductor diode lasers anowanzo shandiswa mupurasitiki welding.Wavelengths muhuwandu hwe808 nm kusvika 980 nm inogona kushandiswa kujoina akasiyana epurasitiki zvinhu musanganiswa.Masimba emagetsi kubva pasi pe1W kusvika 100W anodiwa zvichienderana nemidziyo, ukobvu uye inodiwa kukurumidza kukurumidza.
Solvent welding
Mukunyungudusa welding, chinonyungudutsa chinoiswa chinogona kunyungudutsa polymer kwekanguva patembiricha yekamuri.Kana izvi zvikaitika, cheni dzepolymer dzakasununguka kufamba mumvura uye dzinogona kusangana nemamwe macheni akanyungudutswa akafanana mune chimwe chikamu.Kupihwa nguva yakakwana, chinonyungudutsa chinopinda nemupolymer uye kunze mukati menharaunda, kuitira kuti maketani arasikirwe nekufamba kwawo.Izvi zvinosiya huremu hwakasimba hwemacheni akapinzwa epolymer ayo anoumba weld yekunyungudutsa.
Iyi nzira inowanzoshandiswa pakubatanidza PVC neABS pombi, semumba dzemvura.Iyo "gluing" pamwe chete epurasitiki (polycarbonate, polystyrene kana ABS) modhi zvakare ndeye solvent welding process.
Nguva yekutumira: May-10-2018