Gwaro remutungamiriri webasa remumundakutadza kwe exothermic welds— zvikonzero zvishanu zvemaitiro, nzira yekuongorora, uye nzira yekuongorora kutadza kweweld yaunogona kushandisa usati wabvisa chero chinhu.
- Kukundikana kukuru kwe "exothermic weld" kamwe kamwe hakungoerekana kwaitika: inenge 80% inodzokera shure kune chimwe chezvikonzero zvishanu izvo vatengesi vasingawanzo nyora - hunyoro hwakavharirwa, graphite yakasakara, upfu husina kukura, prep ye conductor yakasvibiswa, kana nguva yekupisa inotonhora.
- Joint inotaridzika zvakanaka inogona kuyera 800 micro-ohm ichienzanisa ne 30–50 micro-ohm ine hutano, nekuti kuongorora kwemaziso hakuone porosity ye conductor-side kana oxide lamination.
- Majoini akakundikana haagone kudururwazve panzvimbo yawo — deredza 50 mm yemuchina wekufambisa mvura kupfuura nzvimbo ine kupisa, ziva chikonzero chacho, wobva wagadzirazve neforoma mukati mehwindo rayo re50–100 service-cycle.
- PaChirevo cheCadweld che nVent ERICO, maitiro acho anogadzira chisungo chemamorekuru, kwete chemuchina — saka chero nzira yekukundikana inogadzira interface (moisture film, oxide lamination, void) inokunda tekinoroji kubva mukati.
- Yeduthermit welding mold mutsetseinoongororwa kuti iite ma cycles 50–100 ine ma joints 80–100 ari kushandiswa mumunda, yakagadzirwa ne premium graphite kuitira kuti gomba rirambe richishivirira kwenguva yakareba — asi chakuvhuvhu chiri kunze kwehwindo iroro hachisisiri chakuvhuvhu, imhosva.
- Mhanyai mutambo wekudyidzanaKuongorora Kukundikana Kweweldpazasi usati wacheka joini rimwe chete — sarudza chiratidzo chaunoona panzvimbo yacho wobva wawana chikonzero chingangove chiripo pamwe nematanho ekubata nawo ipapo ipapo.
Mavhiki matatu apfuura, kontrakita muCebu akanditumira mifananidzo nenguva dza11pm panguva yemuno. Majoini mazana maviri e exothermic akanga adirwa mukota yapfuura pagridi yepasi ye33 kV substation. Yakatanga kushanda mangwanani akatevera. Hafu yejoini yacho yaitaridzika zvakanaka. Imwe hafu yaiva nema micro-blowholes padivi penzira yekubuda nayo conductor uye yaiva pakati pe600 ne900 micro-ohm, ichipesana ne30 kusvika 50 yakanaka pahafu yakanaka. Mutengesi - kwete isu - ndiye akaunzaupfu hwesimbi hwakasungirirwamuchikepe chakanga chakamira pachiteshi chengarava cheManila mukati memvura yemazuva matatu. Hapana akavhura katuriji kuti aongorore.
Kufona ikoko ndiko kwakonzera nyaya iyi. Mushure memakore gumi nemanomwe ekugadzira michinamapundu ekushongedza exothermicKune vanotenga kunze kwenyika — uye makore gumi nemaviri ndichiona mishumo yavo yekumisikidza — handina kutenda mukukundikana kamwe kamwe. Chinhu chinoita sechikamwe kamwe kazhinji chinokanganisa maitiro asina kuratidzwa nemunhu nekuti pepa remagadzirirwo harina kuvaudza kuti vatarise. Hechino chandinotumira kontrakita wese anondidana nekutadza "kwakavanzika", nenzira yandinovaratidza nayo panzvimbo yacho.
Sei Kukundikana kweThermit Weld Kusingambofi Kwakundikana Sezvaunofunga
Ndinofanira kutanga ndaedza kugadzirisa nyaya yacho, nekuti ndiyo inoumba sarudzo yega yega yekugadzirisa matambudziko inotorwa nechikwata. Kana mukondirakiti akandidana ne "weld yakundikana", ndinobvunza mubvunzo mumwe chete ndisati ndabvunza chimwe chinhu:ko joini yakambopasa bvunzo yekudzivirira, kana kuti yakakundikana pakuisa joini payakatanga kuyerwa?Mhinduro yacho inochinja zvese, nekuti joini yakaora mukushanda uye joini yakanga isina kunaka kubva ku pour-day matambudziko maviri akasiyana zvachose ane zvikonzero zviviri zvakasiyana zvachose.
Sekureva kwemabhuku ekutarisira kukwegura pamusoro pekubatanidza magetsi akavigwa ayo US utilities inotaura (NUREG-1800, report yeGeneric Aging Lessons Learned yakashandiswa kutsigira makumi emakore ekuwedzera kwehupenyu hwemiti), nzira dzakanyorwa dzekuora kwejoini chero ripi zvaro rakavigwa dzinosanganisira kupisa, kupisa kwe ohmic, kudedera, uye ngura - uye report yacho iri pachena kuti idzi nzira dzinoshanda pamipendero.exothermic weld haina chinongedzo chezera, nekuti maconductor nemhangura yakanyungudutswa zvinova simbi imwe chete inoenderera mberi panguva yekuchinja. Saka kana joini ye exothermic yakadururwa zvakanaka ikatadza kushanda, kukundikana kunenge kusingamboitiki musimbi ye weld pachayo - iri muchikamu che conductor iyo weld isina kumbosvika, kana mu micro-gap iyo weld yakasiyiwa nekuti hupfu hwakanga husina kunaka pazuva rekudurura.
Chii chinonzi "chikanganiso kubva pazuva rekudonha" chinotaridzika pakuongorora kwemhosva dzezvemhosva
Majoini mazana maviri eCebu akandidzidzisa imwe nzira yakaramba iripo pamatambudziko ese andakaita kubvira ipapo. Patinocheka joini yakakundikana tobva tapukuta chikamu chepakati, tinoona chimwe chezvivako zvishanu zvinogara zvichidzokororwa, uye chimwe nechimwe chinoenderana nechimwe chezvikonzero zvishanu zvemaitiro mune chimwe chikamu chasara chechinyorwa chino:
- Maburi ekufema akaungana pedyo nepamusoro pemuchina wekufambisa.Mhute inobva muhunyoro hwakavharirwa — kazhinji hupfu hwakanyorova, dzimwe nguva dhayakita rakanyorova, dzimwe nguva rinonyorova muforoma inotonhora.
- Kuravira kweoxide kwakafanana ne axis yemuchina.Kusvibiswa pakati pesimbi inopinza nesimbi inonamira — mafuta anobva pamunwe, oxide inosara kubva patambo isina kucheneswa zvakanaka, kana firimu rinoburitsa simba kubva pachinhu chisina kumbopiswa.
- Hova isina kuzadzwa zvakakwana ine pamusoro pemabhena akachekwa.Chiumbwa chegirafiti chakasakara kupfuura huwandu hwacho hwema cycle, kana kuti hupfu hwakaderera hwakashandiswa pakuisa stendi yemuchina waifanira kuzadza.
- Mutsetse wakavharika nechando apo mativi maviri esimbi akatadza kubatana.Nguva yekubatidza moto yakanga isina kunaka pakupisa kweforoma - kazhinji nekuti vashandi vakaedza kubatidza foroma zvakananga kubva muchitoro chine mhepo inotonhorera mangwanani anotonhora.
- Bead re weld rakasungirirwa kune rimwe chete rema conductor maviri ari mu crossover.Kusarongeka kwechinhu pakuvhara, kana dhisiki reupfu rakabviswa paburi repombi panguva yekubatidza.
Kana wangodzidza kuverenga ma microstructure mashanu aya, hurukuro yekugadzirisa matambudziko inorega kuva fungidziro. Zvimwe zviri mugwaro iri zvinotevedza chikonzero chimwe nechimwe nenzira yandinozoongorora panzvimbo iyi, nedanho rekusimbisa rinozvisimbisa usati wacheka jointi rimwe chete.
Hunyoro Ndihwo Hunokonzera Chaizvo Here Kana Thermit Weld Yakundikana?
Hunyoro ndihwo hunonyanya kundikanganisa nekuti ndihwo hunonyanya kufadza uye hunokanganwira zvikuru. Mhangura yakanyungudutswa inobva mu exothermic reaction inogara pa 1,083 °C — nzvimbo yekunyunguduka kwemhangura — uye panguva yainosangana nemvura, mvura iyoyo inofashaira kuita utsi uye inowedzera kanenge ka1,700 muhuwandu. Utsi hunodzokera nesimbi yakanyungudutswa, hunosiya nzira yemaburi, uye mubatanidzwa wacho unokanganiswa usati watombotonhora.Kuferefeta kwezviitiko zveOSHA pakushanda kwe thermit-weld, nzira imwe chete iyi yakakonzera kukuvara kwakawanda kwekubatidza uye kupiswa kwevashandi kupfuura chero imwe zvikanganiso zve exothermic process.
Chikonzero nei izvi zvichikundikana chinyararire ndechekuti hunyoro hune nzvimbo nhatu dzekuvanda, uye imwe chete yadzo ndiyo iri pachena.
- Upfu hwakanyorova.Chikonzero chinowanzo konzera kutadza kushanda zvakanaka. Upfu hunotumirwa mumagaba akavharwa nechikonzero - kana gaba ravhurwa, zviri mukati zvinova zvakapfava uye zvinotora hunyoro hwemhepo munzvimbo dziri kumahombekombe mukati memaawa mashoma. Katuriji "inotaridzika seyakaoma" haina kuoma.
- Madhairekita ane hunyoro.Tambo yemhangura nesimbi yakaputirwa nemhangura zvose zvinochengeta hunyoro mukati metambo. Tambo yakachengetwa isina kufukidzwa panzvimbo iyi panguva yemvura inonyorova mukati kunyangwe kunze kwayo kuchiratidzika kunge kwakaoma, uye pamusoro pakaomeswa nemwenje unotora hunyoro mukati memaminitsi mashoma mumhepo ine hunyoro.
- Kutonhora-kuoma.Chiumbwa chegrafiti chakaburitswa muchitoro chine mhepo inotonhorera pa18°C mangwanani chinodziya ne32°C, chine hunyoro hwe85% chichaunganidza firimu remvura pamadziro ayo vasati vashandi vaisa kondakita panzvimbo yacho. Dururiro rinozobata firimu iroro pakati pemadziro echiumbwa nesimbi yakanyungudutswa.
Kuongororwa kweCebu mushure mekufa mumitsara mitatu
Majoini eCebu akatadza kushanda nekuti hupfu hwakagara pachiteshi chakanyoroveswa nemvura uye vashandi vakavhura magaba mangwanani ekudururwa. Vakashandisa hupfu hwacho nekuti hwairatidzika kunge hwakaoma - uye pasi pebead, pane imwe neimwe joini yakakundikana, yakaratidza maitiro chaiwo egomba rekuputira mvura rinosiyiwa nemhepo inofefetera. Kuongorora kwemaminetsi makumi maviri ekubvisa mvura mumakatriji matatu emuenzaniso usati wadururwa kwaizobata boka rese, uye vashandi vangadai vakaziva kuti vaizoisa mamwe ese muchivande.
Mould Yako yeGraphite Yakasakara Here?
Ichi ndicho chikonzero chinoita kuti vatengesi vabate zvakanyanya, nekuti nzira yekukundikana haionekwe nemutengi uye huwandu hwenguva yekushanda kwemotokari chinhu chinongozivikanwa nemutengesi chete.Mabhuku ezvigadzirwa zveCadweld zvenVent ERICOinoyera graphite molds pamatanho ekusevhisi angangoita makumi mashanu kusvika zana, uye pamutsetse wedu tinoyera yeduthermit welding moldspanguva imwe cheteyo ye50 kusvika ku100, nemajoini 80 kusvika ku100 ari kushandiswa mumunda nguva dzose. Mushure meizvozvo, gomba racho rave rakukurwa zvakakwana zvekuti gomba repombi harichakwanisi kuyera simbi yakanyungudutswa kuti ipinde mujoini.
Chiratidzo chechokwadi cheforoma yakasakara hachisi chekutsemuka kwaunogona kuona - ibhero reweld richirasikirwa nechimiro charo chemutsago uye richitanga kukanda mukati. Foroma itsva inogadzira bead rinogara zvinyoro nyoro pamusoro pemuchina wekufambisa, nekuti poda inozadza zvishoma gomba uye yakawandisa inopinda mu riser. Foroma yakasakara inozadza pasi, nekuti gomba racho rakura zvakakwana zvekuti poda imwe cheteyo haichina imwe yekuwedzera. Vashandi vanobhadhara nekuwedzera poda, iyo inozopisa gomba racho zvakanyanya uye inokurumidza kupera - feedback loop inotora madonhwe makumi maviri akaipa kuti iparadze foroma zvachose.
Maitiro ekuongorora mhando yeforoma yausina kutenga kubva kwatiri
Kana wakagara nhaka mapundu kubva kune mumwe mutengesi, yera imwe uchienzaniswa nepundu rinozivikanwa rine geometry yakafanana. Pundu regirafiti rinorasikirwa nemagiramu matatu kusvika masere padanho rega rega nekuda kwekukukurwa kwemvura nekupisa; mapundu ane magiramu makumi mashanu pasi pehuremu hwaro hwekutanga ave nematanho akawanda kupfuura ayo anobvumidzwa. Chechipiri, tarisa chimiro chepundu reweld mukati memapombi mashanu ekupedzisira - kana paine rimwe rawo rakaiswa mukati, pundu racho rasundirwa kunze kwehwindo rayo rebasa rechokwadi.IEEE Std 837-2014, chimiro chekukodzera kubatana kwepasi kwechiteshi chepasi zvachose, chimiro chenzvimbo yeweld chikamu cheuchapupu hwekukodzera - saka chakuvhuvhu chakasakara hachisi njodzi yemhando chete, asi njodzi yekutevedzera mitemo inopesana nechiyero chakatsanangurwa pajointi.
Kuchaja kweupfu husina kukura kunogona kukanganisa maWeld ako chinyararire here?
Upfu hunouya muhukuru hwakajairika hwemakatriji nekuda kwechikonzero.Nekuti chiyero chehupfu-ku-mhangura-hukuru ndicho chinochinja chinosarudza kana reaction ichiburitsa kupisa kwakakwana kuti inyungudise zvizere chikamu chemuchina wekufambisa, kana katuriji ikasakura inogadzira joint inodurura yakasimba kunze asi isina kusanganiswa zvakanaka pa conductor interface.Bead rinotaridzika zvakanaka. Kuramba kuripo kunotaura chokwadi mushure memwedzi mitanhatu kana jointi yatanga kupisa pasi pesimba rekutanga.
Chiratidzo chechokwadi chekukundikana uku ndechekuti vashandi dzimwe nguva vanotsiva katuriji kadiki kana saizi yakakodzera isipo, vachifungidzira kuti "simbi yakafanana". Chiratidzo chenhema ndechekuti vamwe vatengesi vanozotengesa katuriji #115 pamutengo we #150 nekuti fomu reodha remukondirakita rakati "cable-to-cable 50 mm²" pasina kutaura nezve conductor pair yakazara. Ose anoguma nejoinhi imwe chete: bead rakanaka, micro-gap yakavanzwa pa conductor, uye resistance inokwira gore negore.
Ko mashortcut ekugadzirira mafambiro emuchina ndiwo here anokonzera kusagadzikana kwakanyanya kwemajoini?
Ndakaona vashandi vachipedza maminitsi makumi maviri vachichenesa chikamu chinoonekwa chetambo yemhangura uye vachisvetuka chikamu chinopinda mukati memold, nekuti spec sheet inoti "yakachena kusvika yakajeka simbi" pasina kutaura kuti sei.Nekuti chisungo chinoumbwa pamusoro pemuchina wekufambisa mvura uri mukati megomba panguva yekudururwa, chikamu chakasvibiswa pasi pegomba chinoumba joini inoenderera mberi nesimbi kunze uye ine oxide-laminated mukati.
Kusvibiswa kwandinonyanya kuona pakuchekwa kwesimbi hakusi tsvina - iminwe. Vashandi vanobata chikamu chemuchina wekufambisa mvura chinopinda muforoma, vosiya firimu remafuta rakatetepa kubva paganda ravo, uye mhangura yakanyungudutswa haigone kunyorovesa nefirimu iroro kuti ibatanidzwe nesimbi yepasi. Mugumisiro wacho unova kubatana kwesimbi inoenderera mberi pakati pesimbi inoweld nesimbi inofambisa mvura, uye oxide plane ndiyo chaiyo nzira iyo NUREG-1800 inonyora senzira yekuora pasi pekupisa.
- Shandisa bhurashi resimbi rakarongerwa, rakapinza pachinhu chimwe nechimwe — simbi yemhangura, simbi yakaputirwa nemhangura, uye simbi yakarungwa, chimwe nechimwe chinoda bhurashi racho.
- Pukuta chikamu chakacheneswa nejira risina kupfapfaidzwa rakanyoroveswa ne isopropyl alcohol, kwete ruoko rwakaputirwa magirovhosi.
- Chenesa zvakare kana kondakita yakagara panze kwemaminitsi anopfuura gumi nemashanu isati yadururwa, nekuti mhangura itsva inodzokororwa nekukurumidza mumhepo dziri kumahombekombe uye mumaindasitiri.
- Bata chikamu chakacheneswa nepliers yakachena kana jira rakachena kubva ipapo zvichienda mberi - usabata ganda.
Nguva Yekupisa Kwechando Ndiyo Inokonzera Kukundikana Kwako Kwemangwanani Here?
Ichi ndicho chikonzero chekuti hapana anonyora, nekuti zvinonzwika sekukanganisa kwemushandisi kwete sekukanganisa kwemaitiro. Chokwadi ndechekuti maitiro e exothermic akagadzirirwa kutenderedza thermal envelope chaiyo, uye mold iri pasi pe25 °C panguva yekubatidza inoita zvakasiyana neyakanga yadziiswa kare. Upfu hwekutanga hunobatidza, reaction front inopararira kuburikidza nekuchaja, asi mhangura yakanyungudutswa inorasikirwa nekupisa kuenda ku graphite inotonhora nekukurumidza kupfuura reaction inogona kuizadzisa, uye simbi inosvika pa conductor cavity iri pasi pe fusion tembiricha. Bead ichiri kuumbwa. Kubatanidzwa hakuna kukwana.
Iri idambudziko guru rekuchinja kwemangwanani munzvimbo dzine mamiriro ekunze anodziya kana anotonhora, uye idambudziko guru rekuchinja kwemasikati munzvimbo dzinopisa uko vashandi vanotonhodza mold dzavo kare munzvimbo dzinochengeterwa mhepo inotonhodza kuti "dzichengetedze". Chero tsika ipi zvayo inogadzira maitiro akafanana ekukundikana: mutsetse unotonhora apo mativi maviri esimbi akasangana asi asina kubatana zvizere, zvichionekwa pachikamu chakasiyana sekusiyana kwakapinza muchimiro chezviyo chakatarisana nemadziro egomba.
Rondedzero yeForensic: Zvekuita Kana Joint Yakundikana Kutumira Basa
Kana pour-day joint ikatadza kushanda, tevera ongororo iyi nenzira iyi. Kuongorora kutatu kwekutanga kunotora nguva isingasviki awa imwe chete panzvimbo yacho uye kunogadzirisa inenge 80% yekukundikana kwemajoint akawanda pasina kubvisa chero chinhu.
- Simbisa nhoroondo yebatch yeupfu.Upfu hwakaunzwa riini, hwakachengetwa sei, uye pane magaba akavhurwa here asati adirwa? Mhinduro ipi zvayo yekuti "hongu" inoratidza hunyoro (Chikonzero 1).
- Dhonza danda reforoma.Chiumbwa chakaita madenderedzwa mangani? Chinongedzerana nechiyero che50–100 cycle. Chero chiumbwa chinopfuura chiyero chacho chinotsiviwa chisati chadururwa chinotevera (Chikonzero 2).
- Tarisa saizi yehupfu uchienzaniswa nehurongwa hwemuchina wekufambisa.Gadzira saizi yekaturiji pagaba rega rega uchienzanisa nemusanganiswa wemuchina wekubatanidza. Kusawirirana kunodururwazve nekaturiji chaiyo (Chikonzero 3).
- Ongorora majoini matatu akakundikana pachikamu chakachinjika.Kucheka nekucheka nekugadzira polish zvakakwana kuti zvionekwe kuti maburi anobuda sei (Chikonzero 1), oxide lamination (Chikonzero 4), pasi pekuzadza (Chikonzero 2 ne3), kana mitsetse inovharwa nechando (Chikonzero 5).
- Kukundikana kwemepu kunopesana nekutevedzana kwekudurura.Kukundikana kwakabatana pakutanga kwekuchinja kunowanzo ratidza Chikonzero 5 (chikosoro chinotonhora). Kukundikana kwakabatana pakupera kwechikamu cheupfu kunongedzera kuChikonzero 1 (hupfu hwakanyorova). Kukundikana kunopararira zvakaenzana panzvimbo yekuchinja kunosvika kuZvikonzero 2 kana 4.
Kana zvikakundikana zvikasashanda zvakanaka, dambudziko rinenge riri rezvakatipoteredza — ivhu, mafungu emvura, kana galvanic corrosion kuwana chinongedzo chakasiyiwa — uye hurukuro inofanira kuchinja kubva pakuita kuenda kukugadzira. Hurukuro iyoyo inyaya yayo pachayo.
Kudzora Kudzora: Kuderedza, Kwete Kugadzirisazve Nzvimbo
Kana joini yakundikana, kugadzirisa kwakakodzera chete ndekwekucheka kupfuura nzvimbo ine kupisa uye kugadzira kondakita kubva pakutanga. Kudurura simbi itsva yeweld pamusoro pejoini yakundikana hakusanganisi simbi itsva kune yekare nenzira yakavimbika, nekuti interface yekutanga yatogadzira simbi yayo uye chero porosity yakavharirwa inova nzvimbo ye nucleation yekukundikana kunotevera. Kucheka kumashure kunofanirwa kunge kuri 50 mm ye conductor yakachena kumativi ese ejoini yekutanga, mold itsva inofanira kunge iri mukati mehuwandu hwayo hwe cycle, uye batch yeupfu inofanira kunge iri kubva mugaba idzva rakavhurwa, rakasimbiswa-rakaoma.
Kudurura kechipiri ndiyo nguva yakakodzera yekuvandudza mold kana kutadza kwacho kuchiratidza kuti mold yapera. Tinotumira yedumapundu ekushongedza exothermicnerogi rema cycle rakarongwa kuitira kuti vatengi vagone kutevera nhoroondo yemold yega yega muprojekiti, uye log imwecheteyo inofanira kufamba nechero mold inofamba pakati penzvimbo. Mold yausingakwanise kufunga nezvayo imold yausingakwanise kuvimba nayo.
| Chikonzero | Zvekusimbisa panzvimbo iyi | Nguva pajoini |
|---|---|---|
| Hunyoro | Kuyedza desiccant pa cartridge yemuenzaniso; kuyedza kupukuta neconductor; tembiricha yepamusoro pemould ≥ 30 °C | 2 maminiti |
| Kupfekwa kwevhu | Chinyorwa chekutenderera kwemould; chimiro chebeads pamatanho mashanu ekupedzisira; huremu hwemould vs huremu hwekutanga | 1 miniti |
| Upfu hwakaderera | Saizi yekaturiji uchienzaniswa nehurongwa hwemutyairi; kutarisa kuvimbika kwebatch | 1 miniti |
| Kugadzirira kwemutyairi | Kuongorora simbi yakajeka; hapana kusangana kweganda mushure mekuchenesa; ≤ hwindo rakavhurika kwemaminitsi gumi nemashanu | 1 miniti |
| Kupisa kunotonhora | Thermometer ye infrared kana contact thermometer paforoma payakabatidzwa; dziyai kana pasi pe 25 °C | masekondi makumi matatu |
Maitiro Ekuongorora Mutengesi Wako Wazvino Pasina Kutuka Munhu
Mazhinji emashoko andinoita panyaya iyi haatangi nekukundikana. Anotanga nemutengi achangobva kukumbirwa kuti anyorese mutengesi mutsva, kana mainjiniya akagara nhaka nzira yaasina kugadzira, uye vanoda kuziva mibvunzo yekubvunza vasati vakundikana. Shanduro yechokwadi yehurukuro iyoyo ndeyekuti anenge mutengesi wese anogona kutumira mold inoshanda pazuva rekubuda kwemvura. Mubvunzo wakaoma ndewekuti vanogona here kunyora kuti nei chigadzirwa chavo chakashanda, uye kana mhinduro yacho ikashanda kana isingashande.
Mibvunzo mitatu inoparadzanisa mutengesi chaiye kubva kune anoderedza mutengo pane dambudziko iri, uye ndaizotsanangura mutengi wese maererano naro nenzira iyi.
- "Ndiratidze template yako yekunyora zvakanyorwa zvemold cycle."Mutengesi anonyora nhamba dzema "cycles" mutengesi anoziva kuti ma "molds" anopera. Mutengesi asingadaro anotsamwisa dambudziko rako rikava rake.
- "Kutevedza kwako hupfu hwebatch kwakadini?"Kani rega rega rinofanira kunge riine nhamba yebatch, zuva rekugadzirwa, uye chiratidzo che container yakavharwa. Mutengesi anoisazve hupfu hwakawanda mumakani asina kunyorwa injodzi yehunyoro mugaba.
- "Chii chaunofunga nezvekutsiva katuriji kadiki kadiki?"Mhinduro yechokwadi ndeyekuti "tinoramba odha kusvika masimbisa saizi yemutyairi." Mhinduro ine njodzi ndeyekuti "tinogona kutumira gaba diki nhasi."
Takavaka magwaro edu ekutumira zvinhu kunze kwenyika achienderana nemibvunzo iyi mitatu nekuti ndiyo mibvunzo yatinoongorora kukundikana kwedu. Ndiyo mibvunzo yandaizobvunzawo, dai ndaiva mutengi.
Kuongorora Kukundikana Kweweld — Sarudza Chiratidzo Chaunoona Mumunda
Usati wacheka joini rimwe chete, tanga nekuongorora uku. Sarudza chiratidzo chinoenderana nezvauri kuona panzvimbo yacho - chimiro chemufananidzo, chemagetsi, kana kuti nguva - uye chishandiso chinochidzosera kuzvikonzero zvishanu zviri pamusoro apa, chinokupa kuverenga kwechivimbo, uye chinoronga matanho ekutanga ekutora usati wadira rimwe. Uyu ndiwo muti wesarudzo wandinotumira mutengi pafoni kana foni yakundikana.
- Simbisa saizi yekaturiji uchienzanisa nemusanganiswa wemuchina wekufambisa — chaji isina kukura ndiyo inonyanya kukonzera kusakwana kwekubatanidza muchina mumwe chete.
- Ongorora kurongeka kwemold: hafu mbiri idzi dzinofanira kuvhara zvakanaka pamutsetse wepakati pemuchina wekufambisa pasina chiedza chezuva chinoonekwa.
- Tarisa dhisiki resimbi — rinofanira kugara pakati pegomba repombi risati rabatidzwa, risingambofambi.
- Gadzirirazve jira remuchina wekufambisa mvura nebhurashi idzva uye chidzikiso che isopropyl usati wadira mvura inotevera.
- Tora mufananidzo wejoini rakakanganisika uye kurongeka kwayo usati waparadza kuitira kuti kudira kunotevera kugone kuongororwa.
Kuongorora kunoratidza chiratidzo chimwe chete kune chimwe chikonzero chingangove chakakonzerwa nematanho akasiyana-siyana kubva muzvikanganiso 312 zvakanyorwa zvakaongororwa nefekitori yedu pakati pa2023 na2026. Kana zviratidzo zviviri zvikapindirana, tarisa chechipiri zvakasiyana - zvicharatidza chikonzero chimwe chete mu80% yezviitiko zvakabatana.
Mibvunzo Inowanzo bvunzwa Nezve Exothermic Welds Dzakakundikana
Ndingaziva sei kana exothermic weld yakundikana kana ichiri kuita seyakasimba?
Kushanda kwe thermit weld kwakundikana kunogona kutaridzika zvakanaka kunze asi kuchiramba kuri joint isina kunaka. Zviratidzo zvinovimbika ndezvemagetsi: kuverenga kwe milliohm resistance kunokwira gore negore, mufananidzo wekupisa unotorwa pasi pemutoro unoratidza joint ichipisa kupfuura conductor, kana denderedzwa re green copper carbonate panzvimbo yekubuda ye conductor. Kuongorora kwekuona chete kunongobata zvikanganiso zvakanyanya - porosity inobuda pamusoro kana kushaikwa kwezadza pagomba repombi.
Ko weld ye exothermic yakundikana inogona kusungirirwazve panzvimbo yayo here, kana kuti kondakita inofanira kuchekwa?
Unofanira kucheka uchipfuura nzvimbo ine kupisa wobva wagadzirazve conductor itsva. Kudurura simbi itsva ye weld pamusoro pejoin yakundikana hakusanganisi simbi itsva nemhangura yekare nenzira yakavimbika nekuti interface yekutanga yatogadzira simbi yayo uye chero porosity yakavharirwa inova nzvimbo ye nucleation yekukundikana kunotevera. Mukuita, join yakundikana zvinoreva kucheka 50 mm ye conductor kumativi ese, kuchenesa kuita simbi yakajeka, uye kushandisa graphite mold itsva - uye chete mushure mekunge waona chikonzero chikuru.
Chii chinoita kuti hunyoro huve mukati me exothermic weld?
Mhangura yakanyungudutswa inobva mu exothermic reaction inogara pa 1,083 °C, uye chero mvura yakavharirwa mugomba remold, pa conductor, kana mu powder flash-flares kuti iite utsi panguva iyo simbi yasvika. Utsi hunokura kanenge ka1,700 muhuwandu uye hunomanikidza kubuda nepakati pesimbi yakanyungudutswa, zvichisiya maburi emhepo uye oxide-laminated joint. Muzviitiko zvakanyanya kunyorwa, kuputika kweutsi kwakaburitsa simbi yakanyungudutswa kubva mu crucible uye yakabatidzwa zvinhu zvakakomberedza - iyi ndiyo imwe yenjodzi dzinonyanya kuratidzwa muOSHA pamabasa e thermit-weld.
Chiumbwa che graphite exothermic welding chinofanira kugara kwenguva yakareba sei?
Pamutsetse wedu tinoyera ma "graphite molds" pa50 kusvika ku100 service cycles, uye ma "joints" 80 kusvika ku100 anoshandiswa nguva dzose mumunda, nekuti kudira kwega kwega kunobvisa gomba uye zvishoma nezvishoma kunoita kuti gomba repombi riwedzere kukura. "Fold" inenge yasundirwa kupfuura nhamba yayo ye "cycle" inotanga kugadzira ma "joints" asina kuzadzwa zvakakwana, uye vanoishandisa vanoigadzirisa nekuwedzera hupfu - iyo inozopisa gomba racho zvakanyanya uye inokurumidza kupera. Chiratidzo chechokwadi hachisi chekutsemuka kwaunogona kuona; i "weld bead" inorasikirwa nechimiro chayo chepillow uye inotanga kuisa mukati.
Sei weld yangu ye exothermic ichitaridzika zvakanaka asi ichiramba zvakanyanya pakuisa?
Kudzivirira kwakanyanya paweld inotaridzika zvakanaka nguva dzose kunodzokera kune chimwe chezvinhu zvitatu: kondakita haina kucheneswa kuita simbi yakajeka pasi pegomba reweld, hupfu hwakanga husina kukura zvakanyanya kune kondakita, kana kuti mold yakakanganiswa saka simbi yakanyungudutswa yakabatanidza kondakita panzvimbo pekubatanidza zvese. Weld yakanaka uye weld isingadziviriri zvakanyanya hazvisi zvinhu zvakafanana, nekuti kuyerwa kwekudzivirira kunotorwa pajoin, kwete kuburikidza nebead. Takaona majoin ane mabead akanaka achiyera 800 micro-ohm achipesana ne30 kusvika 50 micro-ohm ine hutano pa30 kusvika 50 micro-ohm pavavakidzani vakafanana.
Ndeupi musiyano uripo pakati pekukundikana kwe exothermic weld uye weld isina kunaka kubva pakutanga?
Kukundikana kweweld ye exothermic ijoini rinoita nemazvo pakuisa uye rozoora pakushanda — kazhinji kuburikidza nekuora pa conductor interface iyo weld haina kumbobvira yasvika, kuburikidza ne thermal cycling iyo yakavhura micro-gap, kana kuburikidza nekukanganiswa kwemakanika. Weld isina kunaka haina kumbobvira yanaka: yaidururirwa nehupfu hwakanyorova, gap yakakura, chakuvhuvhu chakasakara, kana conductor yakasviba, uye kutadza kunoratidzwa pakuiswa kana bvunzo yekutanga yekutakura. Kusiyanisa zvinhu zviviri izvi nekuti kutadza kunowanzo ratidza dambudziko rezvakatipoteredza, nepo kutadza kuchinongedzera kudambudziko re process kana remupi.
Jane YangManeja weKutengesa, Xinchang Shibang New Material Co., Ltd.
Makore gumi nemaviri mukudzivirira mheni uye kudzivirira kutengeserana kwekunze · Makore gumi nemanomwe ekugadzira mafekitori mushure mekurudziro yega yega.
LinkedIn · Facebook · X
Nguva yekutumira: Nyamavhuvhu-27-2026