Ishishini leMigodi
Uhlalutyo lweSicelo seMvelaphi yoShishino kunye neTekhnoloji yokuGqibezela iLaser
1. Uhlalutyo lweMvelaphi yoShishino
1. Impembelelo yeendawo zokusebenza ezinzima kwizixhobo
Iindawo zokwembiwa kwamalahle phantsi komhlaba zizisa imingeni enzima kakhulu ekuqineni koomatshini. Njengoko amanqanaba okufuma edla ngokudlula i-90% kunye nokubakho kweegesi ezirhabaxa ezifana ne-H₂S kunye ne-SO₂, izinto zesinyithi zidlula kwi-electrochemical corrosion ekhawulezileyo. Umzekelo, ii-hydraulic prop cylinders, ezibalulekileyo ekugcineni uzinzo lwe-tunnel, zisengozini yokugqwala komphezulu okuphazamisa ukusebenza kokutywina, okukhokelela ekusileleni kwenkqubo ye-hydraulic. Ukongeza, amasuntswana othuli lwamalahle (ubunzima be-Mohs 3-4) asebenza njengee-abrasive agents, ezibangela ukuguguleka okukhulu kwiindawo zothumelo ezifana nee-sprockets kunye nee-scrapers. Uthuli lwamalahle olukhawulezayo lunokunciphisa ubomi benkonzo yezi zinto ukuya kuthi ga kwi-40% xa kuthelekiswa neendawo ezicocekileyo.
2. Iindlela zokusilela kweCandelo
(1) Ukudinwa: Ukufakwa rhoqo kwee-sprockets kunye nee-scrapers kubangela ukuqhekeka okuncinci kwiindawo eziphezulu. Emva kweeyure zokusebenza ezimalunga ne-1,000, ezi qhekeko zinokungena kubunzulu obuyi-0.5mm, nto leyo ekhokelela ekuqhekekeni kwezinto kunye nokonakala kokusebenza kwazo.
(2) Ukususwa kombala: Iileya zemveli ezifakwe ngombane (umz., i-hard chrome plating) zibophana ngokubuthathaka ne-substrates (20-30 MPa), nto leyo eyenza ukuba zibe sengozini yokuxobuka xa zitshayiswa. Ngokwahlukileyo koko, i-laser cladding inika amandla okubopha angama-400-600 MPa, okuqinisekisa ukunamathelana kwexesha elide.
2. Iingenelo zeTekhnoloji yokuGqiba ngeLaser
Isigqubuthelo seLaser sangaphandle
Le ndlela igqwesile ekulungiseleleni izinto ezimelana nokugqwala nezimelana nokugqwala kwiindawo zeshaft ezifana neesilinda kunye neentonga zepiston. Iingenelo eziphambili ziquka:
● Izinga Eliphantsi Lokuxutywa: Ngaphantsi kwe-5%, okugcina iipropati zezinto zokuqala.
● Ukuguquka okuncinci: Iindawo ezichaphazeleka bubushushu zihlala zingaphantsi kwe-0.5mm, zigcina ukuchaneka kobukhulu.
● Ukusebenza kakuhle kwezinto: Amanani okusetyenziswa komgubo adlula i-90%, nto leyo enciphisa iindleko xa kuthelekiswa nokufakwa kweplati eqhelekileyo.
● Umgangatho womphezulu: Ukugqitywa kweRa ≤ 6.3μm, okususa imfuneko yokucubungula emva kwento kwiimeko ezininzi.
I-Inner Wall Laser Cladding
Le ndlela ilungele ii-hydraulic cylinders kunye nee-piston rods, kwaye ivumela ukusetyenziswa kweengubo ezahlukeneyo ze-alloy (umz., intsimbi engatyiwayo, ii-alloys ezisekwe kwi-nickel) ezinobukhulu obuqala kwi-0.5mm ukuya kwi-3mm. Umzekelo:
● Iingubo zentsimbi engagqwaliyo: Ibonelela ngokumelana nokugqwala okuphezulu ngokuphindwe kahlanu kunentsimbi engenanto kwiindawo ezine-asidi.
● Ii-Alloys ezisekelwe kwiNickel: Yonyusa ubulukhuni ukusuka kwi-200 HV ukuya kwi-600 HV, nto leyo ephucula kakhulu ukumelana nokuguguleka.
Isigqubuthelo seLaser esigobileyo
Yenzelwe iijometri ezintsonkothileyo ezifana nee-sprockets kunye nee-picks, le nkqubo ibonelela:
● Ulawulo lweNdlela oluZilungelelanisayo: Isebenzisa iinkqubo ze-CNC ezi-5-axis ukufikelela kubukhulu obufanayo bokugquma (± 0.1mm) kwiindawo ezingaqhelekanga.
● Amandla aphezulu eBond: Ukubopha ngesinyithi kuqinisekisa ukumelana nemithwalo enokuchasana. Umzekelo, iileya ezigqunyiweyo kwiipiki zigcina ukuthembeka nokuba zingaphantsi kwama-200 J wamandla okuchasana.
3. Iiparameters zobugcisa kunye neeMetriki zokusebenza
| Ipharamitha | Isigqubuthelo sangaphandle | Isigqubuthelo sodonga lwangaphakathi | Isigqubuthelo somphezulu ogobileyo |
| Amandla eLaser (kW) | 2-4 | 1.5-3 | 1.2-3 |
| Isantya sokuSkena (mm/s) | 50-200 | 30-120 | 40-150 |
| Izinga lokuTya koMgubo (g/min) | 5-25 | 3-15 | 4-20 |
| Ukuqina kweCoating (HV) | 400-1200 | 350-1000 | 450-1100 |
| Amandla okubopha (MPa) | >400 | >350 | >450 |
4. Uphononongo lweTyala: Ukulungiswa kwesilinda seHydraulic Prop
Umgodi wamalahle kwiPhondo laseShanxi uxele ukuba iindleko zokutshintshwa kweesilinda zincitshiswe ngama-65% emva kokusebenzisa i-laser cladding. Le nkqubo ibuyisele iisilinda ezidlakadlaka (ekuqaleni zaziyi-φ140mm×2.5m) kwimeko efanelekileyo yokusebenza, kwaye umaleko odlakadlaka (i-NiCrBSi alloy, ubukhulu obuyi-1.2mm) ubonisa oku:
● I-coefficient ephantsi ye-86% kunentsimbi yokuqala.
● Ubomi obude obuphindwe kathathu phantsi kovavanyo lokuguguleka okurhabaxa.
● Izinga lokupasa eliyi-100% kwiimvavanyo zokutywina ezinoxinzelelo oluphezulu (35 MPa).
5. Iingenelo zeNdalo kunye nezoQoqosho
● Ukonga Izinto Eziphathekayo: I-laser cladding isebenzisa umgubo we-alloy ophantsi ngama-70% xa kuthelekiswa neendlela zokugquma umphezulu eziqhelekileyo.
● Ukonga Amandla: Inciphisa ukusetyenziswa kwamandla ngama-40% ngexesha leenkqubo zokulungisa.
● Ukunciphisa Ukukhutshwa Komoya: Iphelisa ukukhutshwa kwe-chromium ene-hexavalent enxulunyaniswa ne-electroplating, ihambelana nemigaqo engqongqo yokusingqongileyo.
Ukuqukumbela, iteknoloji ye-laser cladding ibonelela ngesisombululo esibanzi sokulwa nokonakala kwezixhobo kwiindawo ezinzima zemigodi, inika ukusebenza okuphezulu kunye nozinzo xa kuthelekiswa neendlela zemveli.
Isicelo seTyala
I-sprocket laser cladding
Isilinda esingaphakathi komngxuma welaser
Isilinda esingaphandle kwesangqa selaser