Nheyo yeMuchina wekucheka weLaser-Oxyfuel Hybrid

Kucheka kwakabatana kwemurazvo welaser kunowanzo reva "kucheka okisijeni nelaser", inova imwe yenzira huru dzekucheka nelaser (dzimwe mbiri ndeyekucheka nelaser melting uye kucheka nelaser vaporization). Hazvirevi "murazvo unogadzirwa nelaser," asi nzira yehybrid inoshandisa laser senzvimbo yekupisa, inowedzerwa neokisijeni yakachena segasi rinobatsira, kutanga mhinduro yakasimba yekupisa kweoxidation (kureva, "murazvo") musimbi (kunyanya zvinhu zvesimbi) panguva yekucheka. Maitiro aya anoshandisa simba rekupisa kubva mukuita kwemakemikari kuti awedzere zvakanyanya mashandiro ekucheka.

Tevere, tichatsanangura musimboti wayo zvakadzama kubva pamaonero akasiyana-siyana:

Nheyo Yekutanga: Kupisa Kwesimbi Kunodzorwa NeLaser

1. Basa re laser (kupisa uye kugadzirisa):

• Danda relaser rine simba rakawanda rinotariswa pamusoro pechinhu chebasa, zvichiita kuti tembiricha yesimbi yakavhenekerwa ikwire nekukurumidza kusvika panzvimbo yayo yekubatidza (inenge 1350°C yesimbi).
• Benzi relaser rinopa sosi yekupisa inogara iripo, chaiyo, ine simba rakawanda iyo isingangobatidzi chete reaction, asi chinonyanya kukosha kuchengetedza nzvimbo reaction patembiricha yakakwira.

2. Basa reokisijeni (chinhu chinopisa uye chinobvisa tsvina):

• Rukova rumwe chete rweokisijeni ine simba guru, yakachena uye ine simba guru runopinzwa nemwaranzi yelaser panzvimbo yesimbi inopiswa nelaser.
• Simbi (Fe) inosvika panzvimbo yekupisa uye okisijeni (O₂) inosangana nekuita kwekupisa kwemhepo kwakasimba (kupisa):4Fe 3O₂ → 2Fe2O, kupisa
• Kuita uku kunoburitsa kupisa kwakawanda (kunenge ka3-5 simba relaser pachayo!), Iyi ndiyo kiyi yesimba "rakasanganiswa". Kupisa uku kwakawedzerwa kunowedzera zvakanyanya kugona kwekunyungudutsa/kuburitsa gasi.

3. Maitiro ekushandira pamwe chete:

• Kupisa uye kubatidza: Laser inotanga yapisa simbi yemuno kusvika panobatidza.
• Kupisa kwe exothermic: jekiseni reokisijeni, simbi inopisa zvine simba, ichigadzira kupisa kwakanyanya kupfuura kunogona kupihwa nelaser pachayo, ichinyungudutsa simbi nekukurumidza kana kutoita kuti ioxide, uye ichigadzira slag (kunyanya Feo neFe3o4).
• Kufuridza nekugadzira: Rimwe basa rakakosha rekuyerera kwegesi yeokisijeni ine simba rakawanda nderekufuridza simbi yakanyungudutswa inonzi slag (slag) inogadzirwa nekuita kwemusono wekucheka zvine simba se "banga remhepo" kuti igadzire nzvimbo yekucheka yakachena, yakatsetseka.

Kuenderera mberi: Benzi relaser rinofamba pamberi, richigara richipisa nzvimbo itsva, uye kupisa kunotevera kutarisisa kwelaser mberi nekudzika, uye pakupedzisira rinopinda mukati mebasa roita kucheka.

Nzira iyi ye "kubatana" inoshanda sei zvakadaro? (Zvakanakira)

1. Kugona kwakasimba kucheka ndiro dzakakora:Kune simbi yekabhoni (yakaita sesimbi isina kabhoni yakawanda), kucheka okisijeni nelaser ndiyo nzira inodhura uye inokurumidza yekucheka maplate epakati nepakati (kazhinji anopfuura 6mm, kusvika 30mm kana kutokora). Kucheka kwakachena kwekunyungudutsa nelaser (senge nenitrogen) kunoda kuvimba nesimba relaser kuti kunyungudutse simbi, mativi eplate yakakora anoita seasina kukwana.

2. Kukurumidza kucheka:Nekuda kwekuwedzera kwesimba remakemikari kubva mukupiswa kwesimbi, simba rose rinopinda rakakwira zvakanyanya kupfuura remagetsi elaser rimwe chete, saka kumhanya kwekucheka kunokurumidza zvakanyanya kupfuura kucheka kwekunyunguduka pasi pesimba rimwe chete.

3Simba remidziyo rinodiwa zvishoma:Kuti ucheke simbi yekabhoni yakafanana, simba relaser rinodiwa pakucheka okisijeni nelaser rinogona kunge rakaderera zvikuru pane rekucheka kunyungudutsa nelaser chaiyo, zvichideredza mitengo yemidziyo uye kushandiswa kwesimba.

4. Hunhu hwakanaka hwekucheka:Pamapureti esimbi yakakora, nzvimbo yekucheka ine kumira zvakanaka uye slag shoma (mamiriro akanaka) inogona kuwanikwa.

Hunhu hwemaitiro uye zvipingamupinyi

1. Kusarudza zvinhu:

• Zvikurukuru zvesimbi dzinoshanda: Chinhu chinowanzo shandiswa uye chakakodzera isimbi yekabhoni.

• Hazvina kukodzera simbi isina ngura, aruminiyamu, mhangura, nezvimwewo:
• Simbi isina ngura: chromium (Cr) nezvimwe zvinhu zvinogadzira ma oxide ane poindi yekunyunguduka (akadai seCr2O3), izvo zvinotadzisa oxidation reaction kuti isarambe ichienderera mberi, uye slag haisi nyore kupeperetswa, zvichikonzera kucheka kwakashata pamusoro uye slag yakakomba inorembera.
• Aruminiyamu nemhangura: nzvimbo yekunyunguduka kwema oxide ayo (Al2O3,CuO) yakakwira zvikuru kupfuura iyo ye substrate pachayo, ichifukidza pamusoro seganda rakaoma, ichidzivirira kuti reaction isarambe ichienderera mberi, uye ine reflectivity yakanyanya ku laser.

2. Hunhu hwekucheka pamusoro:

• Nekuda kwekuita kwe oxidation, pamusoro pechinhu chakachekwa pachava ne oxide layer (yakafanana ne bluing treatment) uye inogona kunge yakaoma zvishoma (kana tichienzanisa nerutivi rwakajeka rwe nitrogen cut).
• Panogona kunge paine katsvina kadiki kakarembera pasi, izvo zvinoda kuderedzwa nekuvandudza ma process parameters.

3. Nzvimbo ine dambudziko rekupisa yakakura:Kuita kwe oxidation kwakasimba kuchaita kuti pave nekupisa kwakawanda, zvichiita kuti nzvimbo ye workpiece inokanganiswa nekupisa ive yakakura kupfuura yekunyunguduka nekucheka ne laser, uye kushanduka kwekupisa kwe workpiece kunogona kunge kwakakura zvishoma.

Kuenzanisa nedzimwe nzira dzekucheka

VS. Kucheka neraser nitrogen yakachena (kucheka nekunyungudutsa):

• Kucheka nitrogen: ne laser melting metal, ichibvisa kunyunguduka ne high pressure nitrogen. Hapana oxidation reaction, chikamu chacho chakajeka uye hachina oxide layer, asi kumhanya kwacho kunononoka, kushandiswa kwegasi kwakawanda, uye mutengo wacho wakakwira. Yakakodzera simbi isingatsvedzi, aruminiyamu, nezvimwewo, uye haina mari yakawanda pasimbi yakakora yekabhoni.
• Kucheka okisijeni: kuwedzera kwekuita kwe okisijeni, kumhanya nekukurumidza, mutengo wakaderera, kwakakodzera simbi yekabhoni, asi chikamu chacho chine oxide layer.

VS. Kucheka moto kwechinyakare (kucheka kweoksiacetylene):

• Murazvo wekare: nekupisa moto, kucheka okisijeni yakachena. Kupisa moto zvishoma nezvishoma, kucheka kwakafara, kunyatsoita zvinhu nemazvo uye kupisa kwakanyanya.
• Kucheka okisijeni neLaser: ne laser ine simba rakawanda, kupisa nekukurumidza, musono wekucheka wakamanikana (uye dhayamita yenzvimbo yelaser), kunyatsojeka, sma
• ll slope, kuputika kudiki kwekupisa, ndiyo nzira yechinyakare yekucheka moto, vhezheni yekuvandudza nemazvo.

Pfupiso

Musimboti mukuru wemuchina wekucheka welaser flame composite (laser oxygen) ndekushandisa laser beam ine simba guru kuti ibatidze nemazvo uye ichengetedze kupisa kwesimbi (simbi) munzvimbo yakachena yeokisijeni, uye kusanganisa simba rekupisa relaser nesimba remakemikari reoxidation yesimbi kuti iwane "1 1>2". Inobatanidza zvakakwana mabhenefiti ekunyatsojeka uye kutarisa kwakanyanya kwelaser nemabhenefiti ekushanda zvakanyanya uye mutengo wakaderera wekupisa okisijeni, zvichiita kuti ive nzira huru isingatsiviwe mumunda wekucheka simbi yekabhoni nepakati nepakati.