Carbide Welding Technologies, Inzira, hamwe ninganda zikoreshwa

Carbide ya sima, izwi cyane kubera ubukana budasanzwe (kugeza kuri 90 HRC) no kwambara birwanya, byinjijwe cyane mubikoresho byo gutema, gucukura amabuye y'agaciro, hamwe nibice byuzuye binyuze mu gusudira. Nyamara, ubwinshi bwayo kandi budahuye na coefficient yo kwagura ubushyuhe (TEC) hamwe nubutaka bwibyuma (4-7 × 10⁻⁶ / ° C na 11–13 × 10⁻⁶ / ° C) bitera ibibazo bidasanzwe byo gusudira. Iyi ngingo irambuye tekinoroji yiganjemo gusudira, kugenzura inzira zikomeye, hamwe nukuri kwisi kwisi kubikoresho bya karbide.

1. Ikoranabuhanga ryiganje rya Welding ya Carbide

Uburyo bubiri bwiganje mubikorwa bya karbide yinganda: gushakisha (bisanzwe ariko byizewe) hamwe no gusudira laser (igisubizo kiboneye). Ibintu nyamukuru biranga byagereranijwe hepfo:

Brazing: Akazi ko gukora ibikoresho bya Carbide

Gukata bigera ku guhuza gushiramo icyuma cyuzuza (aho gushonga munsi ya karbide / ibyuma) kugirango utose kandi wuzuze icyuho, utabanje gushonga ibikoresho fatizo. Nubuhanga bwibanze bwibikoresho bya karbide bitewe nigiciro cyabyo kandi gihuza nibikorwa byinshi.

Amahame yingenzi & Guhitamo kuzuza

Uburyo bwa Bonding Mechanism: Icyuma cyuzuza icyuma cyinjira muri micro-icyuho binyuze mubikorwa bya capillary, bigakora imiyoboro ya metallurgjique hamwe na karbide (WC-Co) hamwe nubutaka bwibyuma binyuze mukwirakwiza ibintu (urugero, Cr mubyuzuza ikora C muri karbide kugirango ikore Cr₃C₂).

Amavuta yuzuza:

Ni-Cr-ishingiye: Bikunzwe kubushyuhe bwo hejuru (urugero, ibikoresho byo gusya), bishonga kuri 1050–1150 ° C, kandi bitanga imbaraga nziza zo kurwanya okiside.

Ag-Cu-Ishingiye: Ikoreshwa mubikoresho bitesha umutwe (urugero, gushiramo umusarani), gushonga kuri 650-800 ° C, bigabanya ibyago byo guhungabana.

Cu-ishingiye: Guhitamo mubukungu kubikoresho rusange-bigabanya ibikoresho, bisaba flux kugirango ikureho firime ya okiside.

Eld Welding ya Laser: Kwinjira neza kubikoresho bihanitse

Gusudira kwa Laser bifashisha urumuri rwibanze (1.06μm fibre fibre laser ikunzwe) kugirango habeho ibizenga byashongeshejwe, bigafasha imbaraga-nyinshi, ingingo-zidasanzwe. Nibyiza kuri micro-ibikoresho na geometrike igoye.

Ibyiza bya Tekinike Kurenza Brazing

Ingaruka ntoya yubushyuhe: Agace katewe nubushyuhe (HAZ)

Gutunganya byihuse: gusudira byihuta kugera kuri 50mm / s kugirango ushiremo karbide, 3x byihuse kuruta induction.

Amahitamo atuzuye: Guhuza mu buryo butaziguye ibice bya karbide byoroshye (urugero, micro-myitozo).

2. Ingamba Zibanze & Ingamba zo Kugabanya

Kunanirwa gusudira karbide ahanini bituruka kumaganya asigaye no gutose. 

Ibisubizo bigamije ni ngombwa:

Stress Ibisigisigi bisigaye & Cracking

Impamvu yumuzi: TEC idahuye itera itandukaniro ryubushyuhe bwumuriro mugihe cyo gukonja, bikabyara impagarara nyinshi muri karbide.

Ibisubizo:

Koresha buffer hagati (urugero, Ni-Cu alloy) kugirango ushire impagarara.

Emera gushyushya intambwe / gukonjesha (igipimo cya ramp10 ° C / s) mugukata induction.

Ubushyuhe bwa nyuma yo gusudira kuri 250 ° C mumasaha 2 kugirango ugabanye imihangayiko 30-50%.

W Ubushuhe bubi

Impamvu Imizi: Ingufu zo hejuru ya Carbide irwanya kwuzuza ibyuma.

Ibisubizo:

Mbere yo kuvura karbide hamwe nifu ya Cr kugirango ube urwego rwa Cr₃C₂.

Koresha fluxes ikora (urugero, ishingiye kuri borax) kugirango ukureho firime ya oxyde kumashanyarazi.

▶ Uzuza Isuri

Impamvu Imizi: Gushyushya cyane bishonga Carbide ya Co binder, bigabanya ingingo.

Ibisubizo:

Gabanya igihe cyo gusudira kugeza kuri

Igenzura laser pulse igihe (2-5ms) kugirango wirinde kumara igihe kinini.

3. Inganda zikoreshwa mu nganda & Inyigo

Gusudira Carbide bifasha ibikoresho-bikora cyane murwego:

▶ Gukata Ibikoresho Gukora

Igikoresho cya CNC Shyiramo: Induction brazing ya WC-Co winjizamos kugeza kumashanyarazi ukoresheje Ni-Cr-B-Si yuzuza (1080 ° C, 45s) igera kuri 200MPa ihuriweho-hamwe na 5000rpm yimashini ikora.

Uruziga ruzengurutse: Gukoresha laser yo gusudira (300W fibre laser) y'amenyo ya karbide kugeza kuri disiki y'ibyuma bigabanya umuvuduko w'amenyo 60% na brazing.

▶ Ubucukuzi bw'amabuye y'agaciro

Gutobora Urutare: Gukuramo Vacuum ya buto ya karbide kumubiri wibyuma (Ni-Cr wuzuza, 1120 ° C) itanga imbaraga zo kurwanya imitwaro ya 50MPa; ubuzima bwa serivisi bwongerewe na 2-33.

▶ Ubwubatsi Bwuzuye

Ibikoresho bya Micro-Machine: Fiber laser yo gusudira ya 0.8mm ya karbide kumashanyarazi yicyuma (250W, 15mm / s) ikomeza ± 0.01mm yuburinganire bwukuri bwo gukata wafer ya semiconductor.

4. Ibizaza

Gusudira Hybrid: Guhuza laser mbere yo gushyushya hamwe no gushiramo induction kugirango ugabanye karbide mu bice byimbitse.

Iterambere ryuzuye ryuzuza: Ni-Cr-Ti yuzuza ikora TiC ikomeye ikomeye hamwe na karbide, bizamura igihe kirekire 30%.

Kwishyira hamwe kwikora: Sisitemu ikoreshwa na AI hamwe nigihe nyacyo cyo kugenzura ubushyuhe kugirango uhindure ibipimo byo gusudira kumpinduka za karbide.

Umwanzuro

Gusudira Carbide bisaba kuringaniza siyanse yibintu no kugenzura ibikorwa - gutondeka ibintu byiza mu musaruro uhenze cyane, mugihe gusudira laser byiganje mubikorwa byingenzi. Mugukemura ibibazo bisigaye hamwe nubushuhe bwamazi, abayikora barashobora gufungura ubushobozi bwa karbide mumyambarire myinshi, ahantu habi cyane, kuva mumashini yinganda kugeza mubikorwa byubucukuzi bukabije.