Qhuav elongation
Gas ntws L = [(10-12)d] L/min
Qhov ntev ntawm cov hlau protruding conductive nozzle yog qhov qhuav elongation ntev. Tus qauv empirical dav dav yog 10-15 npaug ntawm txoj kab uas hla L = (10-15) d. Thaum tus qauv loj, nws yog me ntsis loj dua. Cov specification yog me me, me me.
Qhuav stretching ntev dhau lawm: Thaum qhov ntev ntawm cov vuam hlau txuas ntev dhau lawm, qhov ntau dua qhov kub ntawm cov vuam hlau, qhov nrawm nrawm ntawm cov vuam hlau, uas tuaj yeem yooj yim ua rau vuam hlau fuse hauv ntu, txaws, yaj qhov tob, thiab tsis ruaj khov arc combustion. Nyob rau tib lub sijhawm, cov nyhuv tiv thaiv roj tsis zoo.
Qhuav stretch luv luv: yooj yim rau hlawv lub conductive nozzle. Nyob rau tib lub sij hawm, lub conductive nozzle yog ib qho yooj yim rau clamp hlau thaum nws heats li. Splashes nyiam clog lub nozzle thiab yaj tob.
Table 1 Matching kev sib raug zoo ntawm tam sim no thiab qhuav elongation
| Vuam tam sim no (A) | ≤ 200A | 200-350 A | 350-500 A |
| Qhuav elongation (mm) | 10-15 hli | 15-20 hli | 20-25 hli |
Gas ntws
Gas ntws L = [(10-12)d] L/min
Loj dhau: ua rau muaj kev kub ntxhov, ua rau huab cua nkag thiab qhov hws, tshwj xeeb tshaj yog rau cov khoom siv roj (xws li txhuas alloys, magnesium alloys, thiab lwm yam, uas feem ntau yog sab hauv pores)
Tsawg dhau: kev tiv thaiv roj tsis zoo (koj tuaj yeem xa mus rau cov kev txwv txwv, uas txhais tau hais tias tsis muaj roj tiv thaiv, thiab cov pores zoo li honeycomb tuaj yeem tshwm sim).
Cua ceev tsis cuam tshuam thaum ≤2m / s.
Kev ntsuas yuav tsum tau ua thaum cua ceev yog ≥2m / s.
① Ua kom cov roj ntws nce ntxiv.
② Siv qhov ntsuas cua tiv thaiv.
Lus Cim: Thaum cov pa paug tshwm sim, lub qhov cua yuav tshwm sim ntawm qhov vuam. Cov pa tawm ntawm cov pa tawm yuav tsum tau ua thiab tsis tuaj yeem ntxiv los ntawm kev nce tus nqi ntws. Nws tsis muaj txoj hauv kev los kho lub qhov cua tsis tau tshem tawm. Nws tsuas yuav ua tau ntau welded. ntau.
Arc zog
Thaum sib txawv phaj thicknesses, txawv txoj hauj lwm, txawv specifications, thiab sib txawv welding hlau, txawv arc rog raug xaiv.
Loj dhau: tawv arc, loj txaws.
me me heev: mos arc, me me txaws.
Siab zog
nruj dhau: Lub vuam hlau yog deformed, cov xaim pub mis tsis ruaj khov, thiab nws yooj yim ua rau cov xaim jams thiab nce splashing.
Kev xoob dhau lawm: Lub vuam hlau yog plam, xaim xaim maj mam, qhov vuam tsis ruaj khov, thiab nws tseem yuav ua rau tawg.
Tam sim no, voltage
Cov mis mos rau kev sib raug zoo ntawm tam sim no thiab voltage ntawm roj-tiv thaiv vuam: U = 14 + 0.05I ± 2
Lub vuam tam sim no yuav tsum raug xaiv kom raug raws li qhov tuab ntawm cov khoom siv hauv paus, daim ntawv sib koom ua ke thiab txoj kab uas hla ntawm cov hlau. Thaum lub sij hawm luv luv Circuit Court hloov, sim xaiv ib tug me me tam sim no kom ntseeg tau tias kev nkag mus, vim hais tias thaum lub sij hawm tam sim no loj heev, nws yog ib qho yooj yim uas yuav ua rau lub dissolution pas dej ua ke yob, tsis tsuas yog nws splash loj, tab sis lub molding kuj tsis zoo heev.
Lub vuam voltage yuav tsum tsim kom muaj kev sib koom tes zoo nrog rau tam sim no. Qhov vuam voltage siab dhau los yog qis dhau, uas yuav ua rau tawg. Lub vuam hluav taws xob yuav tsum nce nrog qhov nce ntawm qhov vuam tam sim no thiab yuav tsum txo qis nrog qhov txo qis ntawm qhov vuam tam sim no. Qhov zoo tshaj plaws vuam voltage feem ntau yog nruab nrab ntawm 1-2V, yog li qhov vuam voltage yuav tsum tau ua tib zoo debugged.
Qhov tam sim no loj dhau: qhov ntev arc yog luv, qhov txaws yog loj, qhov kev xav ntawm sab saum toj tes, qhov siab ntxiv yog loj dhau, thiab ob sab tsis zoo fused.
Qhov hluav taws xob siab dhau lawm: lub arc yog ntev, qhov txaws yog me ntsis loj dua, qhov tam sim no tsis ruaj khov, qhov seem qhov siab me dhau, qhov vuam yog dav, thiab cov arc yog yooj yim hlawv.
Qhov cuam tshuam ntawm vuam ceev ceev ntawm vuam
Qhov vuam ceev muaj qhov cuam tshuam tseem ceeb rau qhov zoo ntawm cov khoom siv sab hauv thiab cov tsos ntawm cov vuam. Thaum qhov voltage tam sim no tsis tu ncua:
Lub vuam ceev ceev heev: qhov tob melting, melting dav, thiab residual siab yog txo, tsim ib tug convex los yog hump vuam hlaws, thiab cov ntiv taw yog tom cov nqaij. Thaum lub vuam ceev ceev dhau lawm, cov roj tiv thaiv yuav raug puas tsuaj thiab cov pores tau yooj yim tsim.
Nyob rau tib lub sijhawm, qhov txias ceev ntawm vuam hlau yuav nrawm dua, yog li txo cov plasticity thiab toughness ntawm vuam hlau. Nws tseem yuav ua rau ib qho ntug tshwm nyob rau hauv nruab nrab ntawm cov vuam, uas ua rau cov pwm tsis zoo.
Lub vuam ceev yog qeeb heev: lub pas dej molten yuav loj dua, lub vuam hlaws yuav dav dua, thiab cov ntiv taw vuam yog dhau lawm. Cov pa roj hauv lub pas dej molten tau yooj yim tawm vim qhov vuam qeeb qeeb. Cov qauv hlau ntawm cov vuam yog tuab lossis kub hnyiab vim yog overheating.
Thaum xaiv vuam tsis, yuav tsum tau ua raws li cov hauv qab no: lub vuam yog zoo nkauj nyob rau hauv tsos thiab tsis muaj qhov tsis xws luag xws li hlawv los ntawm, undercuts, pores, tawg, thiab lwm yam. Lub melting qhov tob yog tswj nyob rau hauv ib tug haum ntau yam. Cov txheej txheem vuam yog ruaj khov thiab cov txaws me me. Muaj lub suab rustling thaum vuam. Nyob rau tib lub sijhawm, kev tsim khoom siab tshaj plaws yuav tsum ua tiav.
Lub sij hawm xa tuaj: Mar-10-2025