Tinonzwakukwesha kwe exothermic vs clampsNhaurirano dzevhiki nevhiki, uye chisarudzo hachisi chekuita kwezuva rekutanga - zvese zvinogona kuyera zvakanaka pakugadzwa kwevashandi. Ndizvo zvinoitika kunekuramba kubatana kwepasimushure memakore makumi maviri ekushanda nemakemikari evhu, thermal cycling uye fault currents. Ini ndini Jane Yang, maneja wekutengesa kuXinchang Shibang New Material, fekitori yakagadzira masisitimu e exothermic welding uye mechanical grounding clamps kwemakore anopfuura gumi nemanomwe, saka hatina chekuita nekufungidzira kuti tekinoroji imwe chete ndiyo inokunda kwese kwese. Mugwaro iri tinoenzanisa kuti majoini akasungirirwa uye akasungirirwa anokwegura sei pasi pevhu, zvinodiwa neIEEE 837 uye ma utility specifications, uye mamiriro chaiwo atinokurudzira clamp yemhando yepamusoro pane weld.
- Tinoyeuchidza vatengi kuti chibatiso chepasi chine mabhaudhi chinoenderana nekumanikidzwa kwekubatana; mabhuku ekukwegura eUS NRC (NUREG-1800) anonyora kusunungurwa kwekubatanidza kwemabhaudhi kubva mukutenderera kwekupisa uye kuwedzera kwekudzivirira kubatana kubva mukuoxidation kana kurasikirwa nepreload senzira dzakanyorwa dzekukwegura.
- Mumaforoma edu, exothermic weld inosanganisa maconductors mujoini rimwe chete remamorekuru — hapana chinongedzo chekuoxidize uye hapana bhoti rekugadzirisa torque, ndosaka mafekitori akaita seArkansas Electric Cooperative achiraira kuti exothermic connections dziiswe pasi pevhu uye dziongororwe dzisati dzazadzwa.
- IEEE 837 inokodzera kubatana kwepasi kwechitubu chemagetsi zvachose — ma welds ari mukati megrid, ma leads epasi akabatana nayo, uye ma leads akabatana nemidziyo — uye kuapfuudza ndicho humbowo hwakasimba hwekuti joint icharamba yakasimba muhupenyu hwese hwekuisa.
- Zano redu mumakore makumi maviri anotevera hunyanzvi hweinjiniya: kuyedzazve kubatana kwevhu rakavigwa makore mashanu ega ega — makore matatu ega ega muvhu rine simba — kutenderera kwekugadzirisa pfundo rakanamirwa rinobuda zvakanyanya.
- Tichiri kutsanangura ma clamp emakanika ari pamusoro pemhando yepamusoro, munzvimbo dzinoongororwa uye pabasa rekugadzirisa; ma clamp edu ebhuronzi nebhuronzi ane hupenyu hwebasa hwakatarwa hunopfuura makore makumi mashanu kana akaiswa kwaanogona kuongororwa nekudzoserwa torque.
Sei Kuramba Kubatana Kuchisarudza Kana Joint Yevhu Ichiripo Kwemakore 20
Tinotsanangudza sisitimu yega yega yevhu kune vatengi vatsva secheni: electrode, conductor, uye majoini ari pakati pavo. Electrode inogona kunge yakakwana uye conductor yakakura zvakanyanya, asi sisitimu yacho inoramba ichikundikana kana resistance yejoini imwe ikakwira. Mhepo yekukanganisa uye mheni zvese zvinotora nzira yekusapindirana kushoma, uye masimba ejoini akaora anoyerera nepaburi remugodhi - achiidziisa zvakanyanya uye achikurumidzisa kuora kwayo.
Muzvidzidzo zvedu, fizikisi yejoini rine bolted ndipo patinotangira. Current inoyambuka interface yakasungirirwa chete kuburikidza nenzvimbo dzekubata ne microscopic; kunyange nzvimbo dzakagadzirwa zvakanaka dzinobata panhongonya dzeasperity dzinofukidza chikamu chidiki chenzvimbo inoonekwa. Kuramba kwekumanikidzwa panzvimbo idzodzo, pamwe nekuramba kwefirimu kubva kuma oxides nemakemikari evhu, ndizvo zvinoyerwa ne commissioning test.Chero chinhu chinoderedza kumanikidzwa kwekusangana kana kukora firimu — kukwira, kupisa, ngura — zvinowedzera kuramba kwejoini, uye kupisa kwakawedzerwa kubva mukurasikirwa kweI²R kunodyisa denderedzwa.
Tinoona kuti kuumba mapuranga kunochinja kuenzanisa zvachose. Tinoudza vagovanisi kuti weld ne clamp hazvisi mitengo miviri yebasa rimwe chete; imhando mbiri dzakasiyana dzekukwegura - imwe ine simbi inorwiswa nefizikisi, uye imwe isina zvachose.
Zvinoitwa neTwo Decades Underground kuClamp ine Mabhomba
Tinovimba nemabhuku einjiniya akanyorwa zvakanaka patinotsanangura kuti kubatana kwemabhomba kukwegura sei. Chirevo cheUS Nuclear Regulatory Commission chekutarisira vakwegura,NUREG-1800 (mushumo weGeneric Aging Lessons Learned)— zvinoshandiswa nemakambani emagwaro kururamisa makumi emakore ekushanda kwenguva refu kwefekitori — zvinoronga kubatanidza switchyard izvo chaizvo zvatinotarisira mumajoini evhu:kusunungurwa kwezvibatiso zvemabhori nekuda kwekushanduka kwekupisa uye kupisa kwe ohmicuyekuwedzera kwekudzivirira kwekubatana nekuda kwe oxidation kana kurasikirwa kwe preloadKurasikirwa kwezvinhu zvinokonzerwa nengura zvese zviri zviviri.
Mukuongorora kwedu kwekukundikana, kutenderera kwega kwega kwemutoro kunopisa joini, simbi dzinokura nematanho akasiyana, uye bhaudhi rinozorora nema micron. Kurerukirwa kwega kwega kunowedzera kuramba kubatana, izvo zvinokwidza tembiricha yejoini, izvo zvinokurumidzisa oxidation - mainjiniya ekugadzirisa loop anozvisimbisa anozivikanwa sehot-join spiral. Tinoti izvozvopasi pevhu, haugone kuona clamp inoderera, thermography haigone kusvika pairi, uye re-torque zvinoreva kucheraNdosaka mainjiniya ekugadzira ivhu rakavigwa achida kuti kuongororwazve nguva nenguva —gwara reindasitiri pamusoro pekuiswa kweIEEE 80tinokurudzira kuti kuongororwazve makore mashanu ega ega, uye makore matatu ega ega muvhu rine simba. Tinoverenga kuti mumakore anopfuura makumi maviri izvi zvinosvika mana kusvika matanhatu ekuedza nekuchera pajoini rega rega.
Tinoda kujekesa kuti hapana chimwe cheizvi chinoita kuti maclamps ave asina kunaka - anoaita zvigadzirwa zvine zvinodiwa pakugadzirisa izvo zvinofanirwa kutengwa nemutengo wakakodzera. Tinotengesa zviuru zvemaclamps mwedzi wega wega; chikanganiso ndechekusatenga clamp, asi kungoviga imwe woikanganwa.
Kusungirirwa Kwemafuta: Chisungo CheMorekuru Chisina Chasara Chekusimbisazve
Tinokoshesa exothermic welding nekuti inobvisa interface zvachose. Mutengo wakayerwa we copper oxide ne aluminium powder unoshanda mukati me graphite mold crucible - AF-0401 ne AF-0314 molds dzedu dzakagadzirwa ne graphite yepamusoro-soro ye50-100 service cycles, uye tinoona 80-100 joints pa mold imwe neimwe iri kushandiswa mumunda - uye copper alloys dzakanyungudutswa dzinoita kuti conductors ive simbi imwe chete inoenderera mberi. Hapana kumanikidzwa kwekugunzva, hapana firimu rekukora, hapana bhaudhi rekuzorora.Kudzivirira kwejoini kunongova kudzivirira kwemhangura yakasimba.
Kubva padhesiki redu rekutumira zvinhu kunze kwenyika, tinoona nyika inoona nezvezvinhu izvi ichisangana pamichina yekubatanidza zvinhu kuti zvishandiswe zvakavigwa.IEEE 837iripo zvakananga kuti ikwanise kubatana kwechigarire kunoshandiswa mukuisa pasi pachiteshi - kubatana kuri mukati megrid, matambo epasi akabatana nayo, uye matambo akabatana nemidziyo nezvimiro. Tinoona mayuniti achinyora izvi muzvibvumirano:Zvinodiwa zvekubatanidza Arkansas Electric Cooperativetaura pachena kutikubatana kwepasi pevhu kunofanira kunge kuri kwemhando ye exothermicuye sangano remubatanidzwa rine kodzero yekutiongorora kubatana kwese usati waisa backfilling. Kana chinhu chinokwanisa kungotarisa joini kamwe chete - chisati chanyangarika pasi pevhu - chinosarudza joini risingachinje.
Nzvimbo yedu yefekitori iri nyore: kune chero kubatana kwakavigwa, kusingasvikiki, kana kwakakosha pakuchengetedza, taurai weld. Tinoda kutaura kuti masekondi makumi matanhatu anotorwa pakugadzwa kweforoma ndiyo yekupedzisira kutarisirwa kwaunoda.
Kutarisana: Kubatana Kwepasi Kwakasungirirwa vs Kwakasungwa Kwemakore 20
Tinotsanangura kuenzanisa uku nevanogovera kana vachitaura nezvechirongwa. Cherechedza kuti hapana kana chikamu chimwe chete chinoratidza kuti munhu akunda uye anogamuchira zvese — mhinduro chaiyo inoenderana nekuti boka racho rinogara kupi.
| Zvinhu Zvinopfuura Makore 20 | Kukwevera kweExothermic | Chinovhara cheMichina |
|---|---|---|
| Chimiro chekubatana | Molecular alloy — hapana interface | Kudzvinyirirwa kwekubatana pa bhaudhi interface |
| Maitiro ekuramba | Yakagadzikana; yakaenzana nekudzivirira kondakita | Inokwira kumusoro nekuoxidation uye kurasikirwa nepreload |
| Nzira dzakanyorwa dzekukwegura | Kuora pamwero wakafanana newayo kondakita | Kusunungura kwemhepo inopisa, oxidation, kurasikirwa nekutakura zvinhu zvisati zvaiswa, ngura |
| Kugadzirisa kwemakore anopfuura makumi maviri | Hapana — ongorora kamwe chete usati wadzosera mari | Ongororazve makore matatu kusvika mashanu ega ega; kuchera uye kudzorerazve torque kana yakavigwa |
| Mheni nemheni | Inotakura semutyairi; hapana nzvimbo inopisa | Joini rakaora rinova nzvimbo inonyanya kukonzera kukuvara muI²R |
| Unyanzvi hwekuisa uye maturusi | Kutenderera kwechimiro kwemasekonzi makumi matanhatu, hapana hunyanzvi hwakakosha, hapana simba | Kudzora tambo dzehurenji nekudzibata; inoda kudzoserwa patsva |
| Chinzvimbo chakanakisa | Majoini akavigwa, haasvikiki, akakosha pakuchengetedza | Majoini ari pamusoro pegiredhi, anogona kuongororwa, anogadziriswazve uye echinguvana |
| Zvinhu zvemutengo wekutanga pajoini rega rega (kubva pamitengo yedu yekutumira kunze kwenyika) | Inomhanya pamusoro pejoinhi rakasungirirwa ne30–50%, kunyanya nekuti weld yega yega inoshandisa katuriji yeupfu inoshandiswa kamwe chete pamwe nechikamu chehupenyu hwechiumbwa (50–100 joints) | Mutengo wekutanga wakaderera — hardware chete, hapana muripo unodyiwa |
| Zvirongwa zvekugadzirisa zvakarongwa kwemakore anopfuura makumi maviri | 0 — ongorora kamwe chete usati wadzosera mari | Kuchera, kuyedza zvakare uye kudzokorodza torque cycles (3-5-year cadence) |
| Hupenyu hwebasa hwakatarwa | Inoenderana nekondakita pachayo — hapana chinongedzo chezera | Makore anopfuura makumi mashanu ari munzvimbo dzinoongororwa (rating yedu yeXJ-J1047 series) |
Takagadzira sarudzo iyi senzira yekutanga yekubatsira pakusarudza - tobva tatumira ruzivo rwepurojekiti kuti tiwane mhinduro yakagadzirirwa:
Kusundira kana kuti Kusunga Chinovhara? Rubatsiro rweKusarudza Kwemakore Makumi Maviri
Kwemakore anopfuura makumi maviri, jira rakasungirirwa rinokunda kugadzikana kwekudzivirira chero kupi zvako kusina kunaka kwekugadzirisa. NekutiKudzivirira kweclamp kunoenderana nemafirimu akachengetedzwa asati aiswa uye mafirimu akachena ekubata - ese ari maviri anoparadzwa nemakemikari evhu - nepo kudzivirira kweweld kuri kwemhangura chete, sarudzo isina kugadziriswa ndiyo inonyanya kutonga nzvimbo dzese dzakavigwa kana dzakakosha pakuchengetedza.
Kana Makirampu Emakanika Achiri Mhinduro Yakarurama
Tinotenda kuti kuenzanisa kwechokwadi kunofanira kutaura izvi pachena: maclamps anoramba ari sarudzo chaiyo yeinjiniya mumamiriro ezvinhu chaiwo. Pamusoro pegiredhi - pa transformer neutrals, test links, earth bars uye equipment frames - clamped joint inogona kuongororwa netsanangudzo, uye XJ-J1047 series yedu ine brass, bronze uye pure copper carriers.hupenyu hwebasa hwakatarwa hunopfuura makore makumi mashanuneISO 9001:2015-kugadzirwa kwakasimbiswa shure kwayo. Tinokurudzira kuti pave nechisungo chekugadzirisa zvinhu apo maconductor asingakwanise kucheneswa nekuumbwa — zvinoita kuti circuit isashande zvakanaka nhasi. Isu tinofunga nezve welding isiriyo chishandiso nekugadzira chero nzvimbo iyo joint inofanira kubviswa nemaune kuti iongororwe — test link ndiyo muenzaniso wekare.
Mutemo wedu nevagovanisi unoenderana nezvinzvimbo:sunga zvaunoviga, sunga zvaunoonaTinoona maBOM akasiyana-siyana mumaodha mazhinji ekutumira kunze kwenyika — basa rekudzivirira mheni rinogona kusundira kondakita yega yega iri pasi pegiredhi uye kusungira malink ekuyedza kumisa mhepo, kubva pane imwe nhumbi.
Maitiro Atinotsigira Sarudzo Dzese Kubva Kufekitori Imwe Chete
Isu tinogadzira mativi ese ekuenzanisa uku, ndosaka mazano edu achiramba ari echokwadi. Fekitori yedu, Xinchang Shibang New Material, yakagadzira exothermic welding molds uye powders pamwe chete negrounding clamps kwemakore anopfuura 17 kubva kuXinchang, Zhejiang, uye maawa maviri kubva kuNingbo neShanghai ports. Kambani yedu yepamutemo inonyora rekodhi yekuongorora:zvigadzirwa zvinotengeswa kunyika dzinopfuura makumi matanhatu, fekitori ine 3,000 m² ine vashandi vekugadzira vanopfuura makumi mana nevashandi veR&D vashanu, zvigadzirwa zvemwedzi wega wega zvinopfuura 200,000 zvidimbu, uye zvinotengeswa kunze kwenyika zvinodarika USD 15 miriyoni muna 2022.Mutsetse wedu we exothermic unopa zvidimbu zviuru gumi pamwedzi, kugadzirwa kunoongororwa neCEPRI (China Electric Power Research Institute), uye timu yedu yeQC inopfuura nepakati pese pechigadzirwa chemhando ye "mold and clamp" cheni yemhando yezvikamu zvitanhatu kubva pakuongororwa kusvika pakuongororwa kwemhando yekupedzisira.
Mubasa redu rekutumira kunze kwenyika, mapurojekiti anofamba zvakanaka ane tsika imwe chete: mutengi anotumira purogiramu yemutyairi nenzvimbo dzakabatana, uye timu yedu inodzosera hurongwa hwekubatanidza nzvimbo nenzvimbo - welds dzakatsanangurwa ne mold model nehukuru hwe cartridge, clamps dzakatsanangurwa ne material ne torque guidance - mumudziyo mumwe wakasanganiswa une seti imwe yemagwaro. Kana uchiyera uremukukwesha kwe exothermic vs clampsKuti purojekiti iite mhenyu, chirongwa ichocho ndicho chauchatumirwa nedhipatimendi redu rekutumira zvinhu kunze kwenyika.
Ongorora nzvimbo dzese dziri mbiri: yedumasisitimu ekushongedza exothermic, iyothermit welding chakuvhuvhumhuri yedu, yeduzvibatiso zvepasi zvemhangura, uye zvizerechikamu chekuwedera che exothermic.
Mibvunzo Inowanzo bvunzwa
Ko kupinza kwe exothermic kunogara kwemakore makumi maviri pasi pevhu here?
Ehe — weld inosanganisa maconductors kuita simbi imwe chete, saka joint inoora nekukurumidza kwakafanana neconductor pachayo uye haina interface yekuoxidize kana bhoti kuti isunungure. Utilities dzinotsanangura exothermic connections dzema grids akavigwa nekuti hapana chinochinja pajoint nekufamba kwenguva; Arkansas Electric Cooperative, semuenzaniso, inorayira exothermic underground connections uye inoiongorora isati yadzoserwa.
Sei kuramba kubatana kwe clamp kuchikwira nekufamba kwenguva?
Tinotaura nzira nhatu dzakanyorwa: kupisa kunozorodza bhaudhi risati raiswa, oxidation inosimbisa firimu rekubatana panzvimbo, uye ngura yevhu inobvisa zvinhu. Mabhuku ekukwegura eUS NRC (NUREG-1800) anonyora kusunungurwa kwezvisungo zvemabhaudhi kubva pakupisa uye kuwedzera kwekudzivirira kubatana kubva pakupisa kana kurasikirwa nepreload semhedzisiro inozivikanwa yekukwegura - kutenderera kwega kwega kunowedzera kuramba, izvo zvinokwidza kupisa kwemajoini, izvo zvinokurumidzisa kutenderera.
Chii chinonzi IEEE 837 pakusarudza kwangu connection?
IEEE 837 ndiyo chiyero chekubatanidza kusingaperi kunoshandiswa mukuisa pasi kwechiteshi - majoini ari mukati megrid uye marobhoti emidziyo nemaumbirwo. Rudzi rwekubatanidza runopfuura IEEE 837 rwakaratidza kuti runotakura magetsi ekutadza uye runodzivirira nharaunda muhupenyu hwekugadzira kwekuisa; exothermic welds ndiyo link yekare inokodzera chiyero ichi.
Kangani kanofanira kuongororwazve kubatana kwenzvimbo dzakavigwa?
Tinotevedzera gwara reindasitiri rekuisa IEEE 80: kuyedzazve makore mashanu ega ega, kusimbisa makore matatu ega ega muvhu rine simba. Kwemakore makumi maviri ekugadzira zvinoreva kuyedza kwematanho mana kusvika matanhatu - zvinoshanda pakubatanidza ma clamps, kuchera kunodhura kwekubatanidza ma clamps akavigwa, uye kusakosha pakubatanidza ma cloths akasungirirwa.
Ko ma clamp emakanika anombova nani kupfuura exothermic welds here?
Mhinduro yedu ndeyekuti hongu — pamusoro pegiredhi, pamigero yekuyedza uye pamigero yepasi, pabasa rekugadzirisa, uye chero kupi zvako panofanira kunge pasina kuganhurwa. Munzvimbo dzinoongororwa, brass kana bronze clamp yemhando yepamusoro inopa hupenyu hwayo hwese hwebasa (hwedu hunopfuura makore makumi mashanu) nekuti kugadziriswa kwainoda kunogoneka ipapo.
Kuwedera kwe exothermic kwakaoma here kuita mumunda?
Tinoti kwete. Maitiro acho haadi simba rekunze uye hunyanzvi hwekubatanidza: chenesa maconductor, sunga mold, isa cartridge yeupfu yakabatana, pisa nepfuti yeflint, rega itonhore. Maforoma edu akaongororwa kuti ane majoini 50–100 imwe neimwe, uye tinosanganisa upfu neconductor yako nehukuru kuitira kuti joint iumbwe nemazvo pese painenge yaita.
Mutengesi mumwe chete anogona kupa zvese ma welds nema clamps epurojekiti?
Tinopindura kuti hongu, uye tinokukurudzira. Isu tinogadzira zvese, saka odha imwe chete inogona kufukidza majoini akavigwa akasungirirwa uye nzvimbo dzakasungirirwa pamusoro pegiredhi mumudziyo mumwe chete neseti imwe yesitifiketi - uye hurongwa hwekubatanidza hunoudza vashandi vako kuti tekinoroji ipi inoshandiswa panzvimbo ipi.
Kutsanangura kubatana kwehurongwa hwekugadzira hwemakore makumi maviri?
Titumirei purogiramu yenyu yemuchina wekufambisa ngarava nenzvimbo dzakabatana — tichakudzoserai hurongwa hwenzvimbo nenzvimbo: ma weld ane nhamba dzemold ne cartridge, ma clamp ane zvinhu uye torque guidance, mudziyo mumwe wakasanganiswa.
Jane Yang— Maneja weKutengesa, Xinchang Shibang New Material Co., Ltd.
Jane apedza makore gumi nemaviri ari padhesiki rekutengesa kunze kwenyika refekitori yedu yekudzivirira mwenje nematombo, achibatsira vatengi vekune dzimwe nyika kusarudza nekutsvaga masisitimu ekuwelda exothermic, ma grounding clamps, ground rods nema conductors nekutarisa kwakazara uye rutsigiro rwemagwaro.
Nguva yekutumira: Nyamavhuvhu-17-2026