Kuvhara neLaser: nzira yekuvandudza girini inopinza "zvombo zvepamusoro" muinjini dzemarasha
Pasi pemvura yakadzika yemigodhi yemarasha, masimbi anotsigira hydraulic mumigodhi yemichina yakazara anotenderera pasi pekumanikidzwa kwematani zviuru gumi, matangi emagetsi anokweshana anokweshana achipesana negangue yemarasha, nepo masilinda ehydraulic achinetseka kushanda munzvimbo dzine hunyoro uye dzinopisa. Izvi zvikamu zvakakosha zvinoumba "chimiro chesimbi" chemabasa ekuchera marasha, zvinogara zvichisakara, ngura, uye zvinokanganisa kwenguva yakareba. Nzira dzechinyakare dzekugadzirisa dzakadai sewelding overlay, chromium plating, kana kutsiva zvachose hadzingoratidzi chete kuti dzinodhura uye dzinotora nguva asi dzinokundikanawo kusangana nezvinodiwa zvemugodhi wemarasha wemazuva ano wekushanda zvinobudirira, zvine kabhoni shoma, uye zvisingadhuri. Kubuda kwetekinoroji yelaser cladding ikozvino kuri kuunza "shanduko yekuvandudza simbi" muindasitiri yemichina yemarasha.
I. Kuvhara neLaser: "kuvhiyiwa kwakanyatsonaka" kwekugadzirazve muchina wemarasha
Kuvhara neLaser hakusi "firimu" riri nyore, asi tekinoroji yemazuva ano inoumba dziva rekunyunguduka kwechinhu ichi nemwaranzi yelaser ine simba rakawanda uye panguva imwe chete inopfapfaidza upfu hwakakosha hwealloy kuti iite kubatana kwesimbi pakati pechikamu chekufukidza nehwaro. Kukosha kwayo kukuru kuri mu:
Kugadzirisa chinangwa nemazvo: Danda relaser rinogona kuiswa zvakanaka kuti rikwanise kuputira migero nemakomba ekuora, kudzivirira kukuvara kwesubstrate ine hutano, kunyanya yakakodzera kugadzirisa zvikanganiso zvemunharaunda zvakaita sekukwenya pamakoramu ehydraulic uye kukwenya pamadziro emukati emasilinda.
Kubatana kwakasimba uye kwakasimba kwesimbi: Chigadziko checladding ne matrix zvinoumba atomic diffusion fusion, simba rekubatana rinosvika 400MPa, zvinobvisa zvachose njodzi ye chromium plating peeling.
Kushanda kwakagadzirirwa: Nekusarudza alloy ine cobalt isingaparare (yakadai seStellite 6), alloy ine nickel inodzivirira ngura kana tungsten carbide yakasimbiswa composite, kugona kwezvikamu kurarama mumamiriro ekushanda akaomarara akadai se coal gangue impact uye acid water vapor corrosion kunogona kuvandudzwa.
II. Mashandisirwo anoitwa: Kubva pa "kukwenya mupendero" kusvika pa "kupfuura mashandiro"
1. Rutsigiro rwe hydraulic "chinjo yekuwedzera hupenyu"
Mushure mekunge chromium plating layer iri pamusoro pe hydraulic column yabviswa, column yacho inova nyore kuita ngura uye inokundikana kana yamanikidzwa zvakanyanya. Tekinoroji yelaser cladding inogona:
Mushure mekubvisa pendi yekare, rukoko rwe 0.8-1.5mm rwakavakirwa pa cobalt-based alloy runoiswa zvakananga pamusoro pe substrate;
Kuomarara kwacho kwakawedzerwa kusvika kuHRC 55-60 (chikamu chekutanga che chromium plating layer iHRC 40-45 chete), uye kuramba kupfeka kunowedzerwa kanopfuura katatu;
Kuramba kwengura kwakawedzerwa zvakanyanya. Hupenyu hwebasa rekugadzirisa gomba mumvura yemugodhi ine acid hunosvika mwedzi gumi nemisere, zvichipfuura zvakanyanya chigadziko chitsva chepakutanga (mwedzi 6-8).
2. Mugero wepakati wemuchina wekukwenya "wakagadzirwazve"
Kupera kwegore negore kwepasi pechirongo chepakati pechirongo kunosvika 15mm, uye kutsiva kwechinyakare kunodhura anopfuura 20,000 yuan payuniti imwe neimwe. Mhinduro yelaser cladding inoshandisa tungsten carbide particle-reinforced iron matrix composite material kunzvimbo dzinonyanya kupfekwa dzemadziro echirongo. Ichiwana kuomarara pamusoro pechirongo kupfuura HRC 62, hunyanzvi uhwu hunowedzera kuramba kupfekwa nekashanu kusvika kasere. Kushandiswa kwemumigodhi munzvimbo dzemigodhi kunoratidza kuti chirongo chepakati chakagadziriswazve chinowedzera hupenyu hwebasa kubva pamwedzi mitanhatu kusvika kumwedzi makumi maviri nemana, nepo mari yekugadzirisa patani yemarasha ichiderera ne40%.
3. "Kuvakazve" rusvingo rwemukati rwesilinda ye hydraulic
Kugadzirisa kutadza kwekuvharwa kwemadziro emasirinda: Sisitimu iyi inoshandisa coaxial powder feeding pamwe chete ne laser nozzle yakagadzirirwa maburi emukati, zvichiita kuti zvive nyore kusanganisa maburi munzvimbo dzakamanikana. Kuoma kwenzvimbo mushure mekugadzirisa (Ra ≤ 0.8μm) kunopfuura mwero mutsva wekugadzira zvikamu. Kuedzwa kwemumunda pafekitori yemichina yemarasha kunoratidza kuti masirinda akagadziriswa anowana kutevedzera kushanda kwesevha kwe100% ukuwo achidhura 30% chete yekugadzirwa kwemasirinda matsva.
III. Shanduko nhatu: Hupfumi, Kushanda Nesimba uye Shanduko Yekuchengetedza Rusvingo
| divi | Maitiro echinyakare | Kugadzirazve machira eLaser | Kubatsirwa kwekuchinja |
|---|---|---|---|
| Mutengo | Midziyo mitsva inodhura kutenga | Mari yekugadzirisa (20%-50%) | Chivharo chimwe chete chinochengetedza 150,000 yuan |
| Nguva | Kugadzirisa maodha matsva (mazuva makumi matatu +) | Kugadziriswa panzvimbo (mazuva 3-5) | Kuvharwa kwemidziyo kwaderedzwa ne70% |
| Basa | Dzorera kumamiriro ekutanga | Kuvandudza kusimba kwekudzivirira kupfeka/kuora | Hupenyu hwemunhu hwakawedzera ne200%-300% |
| Kudzivirirwa kwezvakatipoteredza | Kusvibiswa kwe electroplating (chromium ions) | Kusvibiswa kwepedyo ne zero | Tsiva maitiro ekugadzira ma electroplate ane chepfu |
IV. Kubva pakugadzirisa kusvika pakuvandudza: ramangwana rekugadzirazve mainjini emarasha neunyanzvi
Nekubatanidzwa kwetekinoroji dzakangwara, laser cladding iri kusvika padanho idzva mukushandiswa kwemichina yemarasha: 1) Nzvimbo dzekushandira dzemarobhoti dzinoita otomatiki dzinogonesa kugadziriswa kwezvikamu zvakaita semakoramu nemasirinda, zvichiwedzera kushanda zvakanaka ne50%; 2) Digital twin predictive maintenance monitors ekushandisa anopfekwa nemasensa kuti agadzirise cladding zvisati zvaitika; 3) Gradient functional materials inogadzira composite cladding layers ine superhard outer surfaces kuti isapfekwe uye yakasimba mukati memukati inodzivirira kutsemuka, zvichibudirira kugadzirisa mamiriro ekushanda akabatana ne impact-wear.