Iyo Shift kuenda kuCryogenic State: Iyo Yakanakira yeLiquid Supply

Nepo argon gasi iri iyo inoshanda yekudzivirira mumiriri, nzira yekuendesa uye kuchengetedza inoita basa rakakosha mukubudirira kwemaindasitiri uye kuchena kutonga. Kune akawanda akakwira-vhoriyamu kana yakakwirira-kuchena maapplication, kupa argon mumagasi silinda hazvigoneke. Izvi zvinotisvitsa pakukosha kwechimiro chemvura.

Kubudirira muKuchengeta uye Kutakura

Magasi anotora nzvimbo yakakura. Kuadzvanya mumasilinda itsika yakajairika, asi kunyangwe pakumanikidzwa kwakanyanya, huwandu hwegasi hurimo hushoma. Chiyero chekuwedzera che argon kubva pamvura kusvika kune gasi inoshamisa 1 kusvika 840.

Izvi zvinoreva kuti vhoriyamu imwe chete yemvura inowedzera kusvika ku840 mavhoriyamu egasi pakudziya kwakajairika uye kumanikidza.

Nekuchengeta nekutakura chinhu chiri mu cryogenic liquid state patembiricha iri pazasi -185.8°C (-302.4°F), huwandu hukuru hunogona kutarisirwa nemazvo. Tangi imwe chete yakawanda yemvura inogona kutsiva mazana emasilinda egasi akanyanya-kudzvanywa, achidzikisa zvakanyanya kuoma kwezvinhu, mafambisirwo ekutumira, uye basa rine chekuita necylinder kubata.

The Purity Imperative

Mukana wakanyanya kukosha wekushandisa sisitimu yekugovera yemvura kune inonzwisisika maapplication ndiko kukwidziridzwa kwekuchena.

Paunenge uchigadzira yakakwira-kuchena gasi, iyo mvura sosi inoita seyakasikwa inonatsa. Maitiro ekuita distillation akapatsanurwa anoshandiswa kupatsanura mweya muchikamu chayo magasi anongoburitsa zvigadzirwa zvemvura zvakanyanyisa. Uyezve, iyo inoenderera ichidhirowa kubva mutangi remvura kuburikidza ne vaporizer inodzivirira zvakajairwa kusvibiswa nyaya dzine chekuita nekuchinjana magasi egasi, sekuunza hunyoro hwemuchadenga kana tsvina panguva yekubatanidza nekudzima.

Kune maindasitiri anoda High-Purity Welding, chiyero cheindasitiri-giredhi argon kazhinji haina kukwana. Zvikumbiro izvi zvinoda "Ultra-High Purity" (UHP) argon, kazhinji ichizvikudza mazinga e99.999% (anowanzo kunzi "mapfumbamwe mapfumbamwe") kana kupfuura. Tsvina tsvina (oxygen, mwando, mahydrocarbons) anofanirwa kuchengetwa kune zvikamu pamiriyoni (ppm) kana zvikamu pabhirioni (ppb) mwero. Kuchengeta iyi nhanho yekuchena kubva kuchirimwa chekugadzira kuenda kune welding torch inogoneka uye yakavimbika kana uchishandisa cryogenic liquid infrastructure.

Yakakosha Zvishandiso: Iko Kuchena Kusina Kukurukurirana

Kushandiswa kweiyi ultra-pure, vaporized shield haisi yepasi rose; chinhu chakakosha chinodiwa kuzvikamu uko kutadza kweweld kuri njodzi, zvingave maererano nekuchengeteka, kurasikirwa nemari, kana kusvibiswa kwechigadzirwa.

1. Aerospace uye Aviation

Indasitiri yezvemuchadenga inoshanda pamucheto wekubuda ropa wesainzi yezvinhu. Ndege nechitundumuseremusere zvinoshandisa alloys ekunze-akadai setitanium, Inconel, uye magiredhi ealuminium akasarudzika-kukwirisa reshiyo yesimba-ku-huremu uye kumirisana nemamiriro ekushanda zvakanyanya.

Titanium, kunyanya, inonyanya kuzivikanwa. Kunyangwe maminetsi mashoma ekusvibiswa kweokisijeni kana nitrogen panguva yewelding zvinokonzeresa kubvongodzwa, kunowanzo zivikanwa neruvara rwebluish kana yero (inozivikanwa se "alpha kesi"). Kuti ubudirire weld titanium components, senge injini exhaust masisitimu kana mafuremu ezvimiro, absolute vacuum kana yakachena argon purge inosungirwa.

2. Semiconductor Manufacturing

Kugadzirwa kwemamicrochips kunoda nharaunda dzakachena kupfuura imba yekuvhiya yechipatara. Iwo mapombi masisitimu anoendesa ekupedzisira-yakanyanya kuchena maitiro magasi kune ekugadzira maturusi anofanira kunge asina kukanganisa. Chero kusakwana kwemukati weld, senge microscopic crevice kana chigamba cheoxidation (rouge), inogona kuchengetedza zvinosvibisa kana kudurura zvimedu zvinoparadza microscopic circuitry iri kugadzirwa.

Muindasitiri iyi, orbital welding inowanzoshandiswa. Iyi otomatiki maitiro inotsamira zvakanyanya paUHP argon kuti ichenese kunze uye mukati memachubhu ari kubatanidzwa, kuve nechokwadi chemukati chakatsetseka, chisina oxidized chemukati chisingazokanganise maitiro ekugadzira semiconductor.

3. Biopharmaceuticals uye Chikafu / Chinwiwa

Zvakafanana nekugadzira semiconductor, maindasitiri emishonga uye ekugadzira chikafu anoisa pamberi pehutsanana uye sterility. Simbi isina tsvina yemapombi masisitimu uye midziyo inoshandiswa kusanganisa uye kutakura zvinhu zvinoshanda kana zvigadzirwa zvechikafu zvinofanirwa kucheneswa nyore uye kuvharika.

Kana weld isina kunyatsotsetseka uye isina oxidation nekuda kwekushaikwa kwekudzivirira, inogadzira nzvimbo ine microscopic yekuti mabhakitiriya uye biofilms igadzire. Aya "bug traps" haagone kubviswa neyakajairwa kuchena-munzvimbo (CIP) maitiro, zvichitungamira kune yakanyanya kusvibiswa kwechigadzirwa. Yakakwirira-kuchena argon inova nechokwadi chekuti welds anochengetedza imwechete corrosion kuramba uye kutsetseka kwepamusoro kupedzisa sechigadziko chesimbi isina tsvina.

4. Indasitiri yeNyukireya

Zvinodiwa nechikamu chenyukireya zvinobuda pachena. Zvikamu zvinoshandiswa mumareactor uye zvigadziriso masisitimu zvinoiswa pasi peradiation yakanyanya, kupisa, uye kudzvanywa kwemakumi emakore ebasa. Kurongeka kwemaitiro emawelds aya kunofanirwa kuve kwakazara. Iyo yakaomesesa yemhando yevimbiso yeprotocol mukugadzira nyukireya inoraira kushandiswa kwemhando yepamusoro-soro inodyiwa uye maitiro ekudzivirira kudzivirira chero mukana wekutadza kana kuvuza.

Mechanics eKudzivirira Kubudirira

Kungove nepamusoro-kuchena gasi iripo hakuna kukwana; inofanira kushandiswa zvakanaka kuti iite nhovo inoshanda. Iyo yekuendesa sisitimu uye maitiro anoshandiswa akakosha zvikamu zvewelding process.

Flow Rate uye Coverage

Kuyerera kwegasi chiitiko chakapfava chekuenzanisa.

• Zvakanyanya kuderera: Iyo gasi haizobvisi mweya wemuchadenga zvinobudirira, zvichiita kuti kusvibiswa uye porosity.

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• Zvakanyanyisa: Kuyerera kwakanyanya kunogona kukonzera mhirizhonga, kukwevera mhepo yakadzika munzvimbo yeweld kuburikidza neVenturi mhedzisiro, ichikunda chinangwa chenhoo.

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Yakanyanya kuyerera mwero inoenderana nesaizi yenozzle, iyo welding process, iyo yakabatana dhizaini, uye ambient mamiriro (senge madhiramu munzvimbo yebasa). Welders anoshandisa gasi kuyerera kwemamita kuti anyatso kuenzanisa kutakura.

Gasi Lenses

Kunatsiridza kuvharika uye kuderedza mhirizhonga, nyanzvi dzematochi dzinonzi magasi lenzi dzinowanzo shandiswa, kunyanya muTIG welding. Lenzi yegasi ine akaturikidzana esimbi isina simbi mesh anoita se diffuser. Panzvimbo pemhepo ine mhirizhonga yegesi inobuda mumuromo, lenzi yegesi inogadzira kuyerera kwakatsetseka, kwakabatana, laminar. Iyi laminar column inoenderera mberi kubva pamuromo, ichipa dziviriro yepamusoro uye ichibvumira welder kuti awedzere tungsten electrode mberi kuti ionekwe zviri nani mumajoini akasimba.

Kuchenesa: Kuchengetedza Mudzi

Nepo tochi ichidzivirira pamusoro peiyo weld, rutivi rwekumashure (kana kuti "mudzi") wejoinhi inofanirawo kutariswa, kunyanya kana welding mapaipi kana midziyo yakavharwa. Kana kuseri kweweld kunoratidzwa kumhepo ichinyungudutswa, inozowedzera oxidize, ichigadzira hurema hunozivikanwa se "shuga."

Kuti udzivise izvi, vhoriyamu yemukati yepombi kana mudziyo yakafashama neinert gasi pamberi uye panguva yewelding process. Iyi nzira, inozivikanwa se back purging, yakakosha kune yakakwirira-kuchena maapplication. Kune yakaoma Stainless simbi kana titanium pombi welds, iyo yemukati yekuchenesa gasi inowanzotariswa neokisijeni analyzer kuti ive nechokwadi chekuti mazinga eokisijeni adzika kusvika kumazinga anogamuchirwa ppm isati yarohwa.

Magasi Akasanganiswa: Kugadzira Shield

Nepo argon yakachena iri chiyero cheTIG welding yesimbi dzisina-ferrous uye yekuchenesa, dzimwe nguva inosanganiswa nemamwe magasi kuti ikwidzise maarc maitiro kune chaiwo maapplication, kunyanya muMIG welding.

• Argon/Helium Blends: Helium, imwe gasi rakanaka, ine yakakwirira ionization inogona uye yakakwirira yekupisa conductivity kupfuura argon. Kuwedzera helium kumusanganiswa kunowedzera kupisa kupinza kwearc, zvichikonzera kudzika kwakadzika uye nekukasira kumhanya kwekufamba. Izvi zvinowanzo shandiswa kukwenenzvera gobvu aluminium kana zvikamu zvemhangura.

• Argon/CO2 Blends: Kune MIG welding yekabhoni simbi, argon yakachena inowanzo gadzira yakamanikana, semunwe-kunge yekupinda mbiri uye arc isingaite. Kuwedzera chikamu chidiki cheCarbon Dioxide (kazhinji 5% kusvika 25%) inodzikamisa arc, inovandudza weld pool fluidity, uye kuwedzera chimiro chekupinda.

• Argon/Oxygen Blends: Kuwedzera kudiki kweokisijeni (1% kusvika 2%) kunogona kushandiswa muMIG welding yesimbi isina tsvina kudzikamisa arc nekuvandudza kunyorova kwechidziva che weld pasina kukonzera yakakosha oxidation.

• Argon/Hydrogen Blends: Mune yakanyatsotsanangurwa TIG welding application, senge automated welding ye austenitic Stainless steel tubing, chikamu chidiki chehydrogen (2% kusvika 5%) chinogona kuwedzerwa. Hydrogen inoshanda sechinhu chinodzikisira, ichibatsira kutsvagisa okisijeni uye kugadzira maweldhi akachena, anopenya ane kuwedzera zvishoma kwekupisa.

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Kunyangwe mumasanganiswa aya ane hunyanzvi, argon inoramba iri chikamu chehwaro, ichipa nhovo yekutanga inert nepo gasi rekuwedzera richikwenenzvera zvimiro zvearc.

Mafungiro Ezvakatipoteredza uye Kuchengetedzwa

Segasi inert, argon haina chepfu, inopisa, kana kupisa. Kubva pakuona kwezvakatipoteredza, haibatsiri pakuumbwa kweutsi kana kupera kwe ozone. Inongokweretwa kubva mumhepo uye pakupedzisira inodzokera kwairi.

Nekudaro, maprotocol ekuchengetedza anofanirwa kuteedzerwa zvakanyanya, kunyanya nezve asphyxiation.

Dambudziko reAsphyxiation

Nemhaka yokuti inorema kudarika mhepo, gasi iri rinogona kuungana munzvimbo dzakadzika-dzika, mugomba, mumigero, kana kuti nzvimbo dzakaganhurirwa (zvakadai semukati memudziyo mukuru uri kucheneswa). Inobvisa oxygen. Sezvo isina ruvara uye isinganhuhwi, mushandi anopinda munzvimbo isina oxygen-inoshomeka haazive kuti vari munjodzi kudzamara vatadza kushanda.

Nzira dzakasimba dzekupinda munzvimbo, kufefetedza kunoramba kuripo, uye kushandiswa kwemaokisijeni ega ega zvinosungirwa kana uchishanda nemavhoriyamu makuru emagasi anert munzvimbo dzakavharirwa.

Cryogenic Hazards

Paunenge uchibata neyekugovera sisitimu yemvura, kune njodzi dzakanangana nekutonhora kwakanyanya. Kusangana necryogenic liquids kana mapaipi asina kuvharwa anogona kukonzera chando chakanyanya. Zvishandiso Zvakakodzera Zvekuzvidzivirira Pamunhu (PPE), zvinosanganisira magirovhosi e-cryogenic nenhoo dzechiso, zvinofanirwa kupfekwa pakushandisa mavharuvhu kana kubatanidza hose kune mvura ine dewars kana matangi mazhinji.

Pamusoro pezvo, kuwedzera kukuru kwereshiyo kwambotaurwa kunoreva kuti kana mvura ikavharirwa muchikamu chepombi pakati pemavharuvhu maviri akavharwa pasina midziyo yekuyamura, painodziya uye ichipfava, kumanikidzwa kunoguma kunogona kukonzera kutadza kunotyisa kwepombi.

Ramangwana reKugadzirwa Kwakachena Kwepamusoro

Sezvo tekinoroji ichifambira mberi, zvinhu zvatinoshandisa zvinowedzera kuoma, uye kushivirira kwekutadza kunoderera kusvika zero. Iko kudiwa kwemaitiro ekugadzira asina chikanganiso kuri kuramba kuchikwira kumativi ese epamusoro-tekinoroji zvikamu.

Munyika ino, basa reakavimbika, emhando yepamusoro Shielding Gasi inonyanya kukosha kupfuura kare. Shanduko kubva kune ega ega epamusoro-kudzvanywa masilinda kuenda kune yakasanganiswa cryogenic fluid yekugovera masisitimu inomiririra maturation ekugadzira maitiro, kuisa pamberi pekubudirira, kuenderana, uye, pamusoro pezvose, kuchena kusingazungunuke kunodiwa kusangana neazvino einjiniya zviyero.

Iyo isingaoneki nhovo yakapihwa ne Liquid Argon icharamba iri chinhu chehwaro mukuvaka ramangwana-kubva kumamicrochips anopa simba nyika yedu yedhijitari kuenda kune chitundumuseremusere chiri kuongorora cosmos, kuve nechokwadi chekuti hukama hwakakosha hunoibata pamwe chete hunoramba hwakasimba, hwakachena, uye husingaputsike.

FAQs

1. Ndinogona here kushandisa yakajairwa maindasitiri argon gasi pachinzvimbo chemvura-sourced argon kune yakakwirira-kuchena maapplication?

Nepo standard maindasitiri argon akakodzera kune akawanda akajairwa mabasa ekugadzira, inowanzo ine tsvina yekutevera (seokisijeni nehunyoro) iyo isingagamuchirwe kune yakakwirira-kuchena maapplication. Kutsvaga kubva pamvura inopihwa uye kushandisa vaporizer kunovimbisa yakanyanya kucheneswa kwekutanga, sezvo iyo inoenderera dhirowa ichidzivirira kusvibiswa kunowanzo kuunzwa panguva yekuchinja gasi silinda. Kune maindasitiri akakosha semiconductors kana aerospace, kushandisa ultra-high kuchena (UHP) mamakisi anotorwa kubva kune akawanda emvura masisitimu anokurudzirwa zvakanyanya uye anowanzo kurairwa.

2. Sei argon inosarudzwa pane nitrogen seinert shielding environment?

Nepo nitrogen isingadhure uye ichiita 78% yemhepo, haina kunyatso inert pakupisa kwakanyanya kwearc yewelding. Nitrogen inogona kuita nesimbi zhinji, kunyanya simbi uye titanium, ichigadzira nitrides. Aya ma nitrides anogona kunyungudika mukati meweld pool, zvichikonzera kubvongodzwa kwakakosha uye kudzikisa zvakanyanya simba remuchina wejoinhi. Argon, iri gasi rakanaka, inoramba iine makemikari inert kunyangwe patembiricha yeplasma, ichiva nechokwadi chekuti hapana kukanganiswa kwemakemikari kunoitika nesimbi yakanyungudutswa.

3. “Kucheneswa” chii, uye nei kuchikosha?

Kucheneswa kumashure inzira yekuzadza mukati mepombi kana chikepe neinert gasi (kazhinji argon) pamberi uye panguva yewelding process. Nepo mwenje wemoto unodzivirira pamusoro pejoinhi kubva mumhepo, kupisa kunopinda kusvika mukati memukati (mudzi). Kana mukati mepombi makazara nemhepo yakajairika, mudzi wakanyungudutswa unopindirana neokisijeni, zvichiita kuti pave nehurema hwakanyanya, hune oxidized hunozivikanwa se "shuga." Kucheneswa kumashure kunovimbisa zvese kumberi uye kumashure kweiyo weld kunoramba kuri munzvimbo yakachena, iyo yakakosha kune hutsanana pombi uye yakanyanya-kushushikana kunyorera.