Vuam ntawm tooj liab hlau: ib tug saib xyuas ntawm txoj kev thiab cov khoom siv. Soldering los yog vuam ntawm tooj liab nyob ntawm tej - uas yog ib qho zoo?

Lub ntsiab hauj lwm thaum koj txuas tej hluav taws xob hu yog los xyuas kom meej lawv yam tsawg kawg nkaus kuj. Thaum cov neeg pluag hu kuj ntawm cov tooj liab nyob ntawm tej yog ho paub, uas ua rau ib tug cua kub cable. Muaj ntau ntau txoj kev hu mus rau kev sib txuas, tiam sis feem ntau txhim khu kev qha thiab zoo yog suav tias yog yuav tsum tau welded tooj liab hlau. Qhov no technology pub monolithically txuas tag nrho cov hlau strands, li no tsis tau raws li tus nqi qis tshaj tau hluav taws xob kuj. Raws li ib tug tshwm sim ntawm cov cua kub ntawm tej yog tshem tawm, yog li ho nce qib ntawm hluav taws kev ruaj ntseg.

Txoj kev ntawm kev twb kev txuas ntawm tej

Tooj yog lub ntsiab neeg xyuas pib khoom. Los ntawm virtue ntawm lub physico-tshuaj thaj chaw ntawm no cov ntaub ntawv uas (high ductility, tsis muaj elasticity), ua hauj lwm nrog lawv nws muaj nws tus yam ntxwv. Hluav taws xob cov apparatus cai hais tias cov neeg ua haujlwm nyob rau hauv ib tug kev twb kev txuas ceg thiab okontsovyvaniyu leeg ntawm cables thiab nyob ntawm tej tej zaum yuav tsum tau ua los ntawm soldering, welding, crimping los yog cia li muab (ntsia liaj qhov rooj, cov muaj hau ntswj, thiab lwm yam). Txhua yam ntawm lawv nws muaj nws tus yam ntxwv, uas yuav tsum tau los sib tham li hauv qab no.

Tiabsis cov nyob ntawm tej los ntawm stranding

Ib tug yooj yim twist nyob ntawm tej yog txwv tsis pub PUE, raws li nws yog lub feem ntau inefficient, luv luv-lived thiab hluav taws kev twb kev txuas. Dua li no, lub domestic craftsmen thiab tsis tu tsis tseg rau siv cov qauv no, txawm tias lub txim ntawm no "khoom siv tes ua" yuav ua tau heev plavchevnymi.

Sib ntswg nyob ntawm tej muaj ib tug loj drawback: tooj liab sib txuas nws thiaj li deformed thiab tsis muaj zog txaus, nws thiaj li tag pov tseg vim lub high kev hloov kuj.

Nws yuav tsum tau nco ntsoov tias sib ntswg txoj kev yuav tsum muaj ntaub ntawv xwb nyob rau hauv exceptional mob, yog ib tug ceev yuav tsum tau los hluav taws xob thiab lwm cov kev nyob rau hauv ib tug teeb meem no xyov yog tsis muaj. Nws yog ib qho tseem ceeb heev rau saib xyuas hais txog qhov zoo, muaj kev ruaj ntseg thiab kev cia siab ntawm kev twb kev txuas.

Nws yog nruj me ntsis txwv tsis pub:

• Txuas nyob ntawm tej tsim los ntawm ntaub ntawv sib txawv (txhuas thiab tooj liab);
• Tuav khoom tooj liab hlau nrog ib tug multifilamentary.

Stranding txheej txheem yog raws li nram no:

1. Clear hlau rwb thaiv tsev ntawm ib tug deb ntawm 6-8 cm los ntawm lub ntug;
2. Thov ib hlau mus rau lwm yam thiab crosswise maximally tuab braid. Yog hais tias tus ntoo khaub lig seem ntawm cov tooj liab hlau ntau tshaj 1 sq. hli, lub lag luam yog ua nrog ciaj.
3. Tom lub tswv yim ntawm ncais seem nyob ntawm tej.
4. Sib ntswg insulated siv tshwj xeeb insulating cov ntaub ntawv (PVC, los yog thaum tshav kub kub ntsws hlab, kaus mom) los yog ob peb khaubncaws sab nraud povtseg ntawm insulating kab xev. Rwb thaiv tsev yuav tsum tau ntes insulating txheej nyob ntawm tej.

siab xeem

Tus txheej txheem yog ib tug txheej txheem ntawm txuas nyob ntawm tej los ntawm lawv cov tshwj xeeb crimping ib tubular lub tes tsho los yog taub. Cov pab kiag li lawm yog siv, yog hais tias tus ntoo khaub lig seem ntawm cov tooj liab hlau yog 2,5-240 sq. hli. Indisputable zoo ntawm CRIMP technology yog ceev thiab raug ua hauj lwm, raws li zoo raws li lub tom ntej durability thiab kev nyab xeeb kev sib txuas.

Rau crimping siv ib tug tshwj xeeb lub cuab tam - mechanical, hydraulic los yog hluav taws xob ciaj los yog kev obzhimochnye xovxwm. Xaiv cov casings yuav tsum raws li nyob rau hauv lub xov tooj ntawm seem thiab kev cob cog rua ntawm nyob ntawm tej.

Tom qab stripping thiab tu nyob, lawv yog applied quartz-Vaseline muab tshuaj txhuam, hnav lub tes tsho thiab tsim ib tug CRIMP. Compression tsho cais.

crimping terminals

Daim ntawv thov ntawm txawv crimps terminals thiab yog dav xyaum los ntawm txuas hluav taws xob, keyboards, teeb fixtures, raws li zoo raws li lub installation ntawm switchboards. Cov pab kiag li lawm cia muaj tseeb thiab ceev connect tooj liab cov khoom hlau, tso tseg hlau tab sis tsis muaj pre-welds los yog crimp raj ntsis mus rau hauv lub ntsia hlau clamp davhlau ya nyob twg yog tsis yooj yim sua.

Lub indisputable zoo ntawm tus ntsia hlau terminals yuav muaj xws li connectivity txhuas thaiv nrog tooj liab, thiab kuj tsis muaj kev xav tau rau tom ntej rho tawm ntawm hu.

Txawm li cas los, qhov no hom ntawm kev twb kev txuas tsis yog tsis muaj flaws. Nws yuav tsum tau periodic txij nkawm, uas muaj nyob rau hauv sib ntswg tus clamping ntsiab. Tooj - ib tug heev mos cov ntaub ntawv uas, nws "to" los ntawm nyob rau hauv lub load. Yog hais tias txawm ua kev sib txuas los ntawm txoj kev caij nplooj ntoos hlav-loaded rigidly cleat terminals, vim muaj ib tug heev me me cheeb tsam cov txee uas chwv ntawm hnyav load yog rhuab thiab tso caij nplooj ntoos hlav ntsiab, uas lawv elasticity txo ua ke nrog rau cov compound zoo.

Pike VS-vuam

Yuav ua kom zoo hu yog feem ntau siv soldering los yog vuam ntawm tooj liab nyob ntawm tej. Hais tias qhov zoo tshaj plaws ntawm cov kev? Twv yuav raug hu, welding. Lub fact tias cov soldering - txheej txheem yog heev laborious thiab lengthy, tshwj xeeb tshaj yog hais tias koj xav mus cuag tseg tooj liab cable. Plus, lub commissural tebchaw nws thiaj li pov tseg vim lub xub ntiag ntawm lub thib peb, ntau friable thiab yooj yim fusible hlau - solder. Lub xub ntiag ntawm txoj kev hloov kuj nyob rau hauv cov pob qij txha sib txawv ntawm cov alloys txhawb mus rau lub tsos ntawm tug tshuaj thiab lwm yam tsis zoo dab.

Thaum vuam yog ua tooj liab hlau, lub sij hawm "hu" feem ntau disappears vim hais tias monolithic compound yog tau los ntawm tib lub hom hlau. Lawm, cov tebchaw txawv cov ntaub ntawv tsawg kuj, uas lub tshav kub yog tsis yog tso tawm.

soldering

Tam sim ntawd nws yuav tsum tau muab sau tseg hais tias qhov no lag luam yuav tsum tau ib qhov nqi ntawm kev txawj ntse thiab kev. Paradoxically, tab sis qhov zoo tshaj yog zoo dua sib ntswg pluag soldering, nco ntsoov qhov no.

Soldering txheej txheem yuav pib nrog ib tug pre-kev kho mob ntawm lub xaus ntawm lub nyob ntawm tej rwb thaiv tsev thiab oxides. Tom qab ntawd lawv kuav los tiag, coated nrog ib tug tshwj xeeb tshuaj - flux ces Hocus. Solder cov nyob ntawm tej tsis tau tsuas yog tooj liab, tab sis kuj txhuas, lub tseem ceeb tshaj plaws - xaiv txoj cai flux thiab solder. Siv active acid flux yog tsis pom zoo, raws li nws yuav tsum tau nyob twj ywm rau cov nyob ntawm tej, xws li hais tias tus compound yuav yaj sai sai.

Ib tug soldering yuav siv sij hawm ib tug ntev lub sij hawm, tab sis, yog hais tias ua kom raug, ib tug kev twb kev txuas yuav txhim khu kev qha thiab check. Thaum cov nyob ntawm tej tau txias, lawv yuav tsum tau ua tib zoo insulated.

vuam

Qhov tseem high-zoo thiab kev ruaj ntseg kev twb kev txuas ntaub ntawv ib tug vuam tooj liab hlau. Lub kuj nyob rau hauv kev sib cuag hlau tsis pub tshaj ib tug txheej txheem kev ntsuas ntawm lawv tsis kam. Qhov no txoj kev tsis yuav tsum tau ntau lub sij hawm thiab yog hais tias yuav kuj yooj yim. Nyob rau hauv lub xub ntiag ntawm qhov tsawg kawg nkaus cov kev txawj thiab kev paub ntawm vuam ntawm tooj liab nyob ntawm tej nyob rau hauv tsev yog phaaj tseem ceeb hab.

Thaum nqa tawm vuam ua hauj lwm tag nrho cov kev cai ntawm cov hluav taws thiab hluav taws xob kev nyab xeeb yuav tsum muaj cai nruj me ntsis. Kom tsis txhob Burns thiab qhov muag raug mob yuav tsum nco ntsoov siv tus kheej tiv thaiv khoom - kev tiv thaiv cov khaub ncaws thiab hnab looj tes, lub kaus mom hlau vuam los yog goggles.

Vuam khoom

Tiabsis cov nyob ntawm tej los ntawm vuam ua apparatuses ntawm ntau hom. Nws yog feem ntau yooj yim rau siv ib inverter apparatus rau Vuam tooj liab nyob ntawm tej, vim qhov no hom ntawm pab kiag li lawm yog yus muaj los ntawm me me luaj li cas thiab qhov hnyav, yig zog noj thiab ib tug ntau yam ntawm Vuam tam sim no muaj nqis. Cov zoo yog cov kev peev xwm qhia tas mus li kub hluav taws xob arc.

Yog hais tias koj npaj ib tug tseem ceeb npaum li cas ntawm hluav taws xob ua hauj lwm, cov nrhiav tau ntawm lub vuam siv lub tshuab inverter yog nkaus uas tsim nyog thiab tsis txhaum. Nyob rau hauv tas li ntawd, cov khoom no yuav yeej tsis dag "tuag hnyav" nyob rau hauv lub neej yav tom ntej.

Nta ntawm tus txheej txheem ntawm vuam nyob ntawm tej los ntawm tooj liab

Vuam tooj liab hlau yuav tau ob leeg AC thiab DC voltage ntawm cov nqi ntawm 15-30 C. Nws yog zoo yog hais tias tus ntaus ntawv muab lub sij hawm los mus kho qhov tam sim no.

Piv txwv li, rau weld ob tug tooj liab conductors ntawm 1.5 sq. hli, txaus 70 A. Rau vuam ntawm peb nyob ntawm tej nrog tib tus ntoo khaub lig seem yog tsim nyog los ua rau kom tus tam sim no mus 90 A. Tiabsis cov peb conductors ntawm 2.5kb. hli yuav tsum los ntawm 80 mus 100 A, ib tug vuam hlau tsib zoo xws li cov - 120 A. Yog hais tias tus xaiv zoo vuam tam sim no tsis tshwm sim "so" ntawm lub electrode thiab cov arc yog txaus ruaj khov.
Rau lub vuam ntawm tooj liab nyob ntawm tej siv cov pa roj carbon-tooj liab "cwj mem qhuav" (electrodes). Yog hais tias tsis yog, nws yog tej zaum yuav siv cov pa roj carbon rods los ntawm tus xaum roj teeb.

vuam coj

Lub tswv yim ntawm cov xov ntev ntawm 5-6 cm twb lim los ntawm ib tug insulating txheej thiab yog cov pib los ntawm lub seem ntawm rwb thaiv tsev, tawm hauv ib tug 5-6 hli kawg ntawm ib tug twist untwisted daim ntawv. Cov tswv yim yuav tsum tau kis, daim ntau quav tso nyob rau hauv thaum uas tig mus thiab nyob ze rau txhua lwm yam. By sib ntswg peb lossis ntau tshaj nyob ntawm tej, thaum kawg koj tseem yuav tsum tau tawm tsuas yog ob tug dawb ntsis, thiab tus so txiav tawm ntawm tus taw tes ntawm lub xeem round ntawm nteg. Yog hais tias lub tshuab yog tsis haib txaus, qhov no twist yuav cia yooj yim tsim ib tug yaj hlaws. Yog hais tias muaj yog txaus tam sim no nyob rau hauv lub vuam apparatus yuav ua tau ib tug yooj yim twist.

Ntxiv sib ntswg clamped ntawm clamping welding. Yog hais tias qhov no ntaus ntawv yog tsis tuaj kawm ntawv, koj muaj peev xwm siv lub tiaj qub ciaj.

Lub npaj compound twb welded carbon electrode. Thaum lub sij hawm welding, cov tooj liab nyob ntawm tej yog melted tshuav untwisted xaus ua ntej txoj kev molten pob. Yuav ua kom ib tug txhim khu kev qha cov neeg kho tshuab thiab hluav taws xob hu hlau, lub melting tsam yuav tsum tau mus rau lub stranding.

Duration vuam yuav tsum tsis txhob ntau tshaj 2-3 vib nas this, txwv tsis pub hlau rwb thaiv tsev weld. Tom qab ua tiav txias ntawm lub compound ua nws rho tawm siv ntau yam khaubncaws sab nraud povtseg ntawm daim kab xev los yog tshwj xeeb cap, PVC, los yog thaum tshav kub kub ntsws tubing.