Awọn Imọ-ẹrọ Welding Carbide, Awọn ilana, ati Awọn ohun elo Iṣẹ

Carbide ti simenti, olokiki fun líle ailẹgbẹ rẹ (to 90 HRC) ati yiya resistance, ti wa ni ibigbogbo sinu awọn irinṣẹ gige, awọn nkan iwakusa, ati awọn paati deede nipasẹ alurinmorin. Bibẹẹkọ, brittleness giga rẹ ati ilodisi imugboroja igbona ti ko baamu (TEC) pẹlu awọn sobusitireti irin (4–7 × 10⁻⁶/°C vs. 11–13 × 10⁻⁶/°C) fa awọn italaya alurinmorin alailẹgbẹ. Nkan yii ṣe alaye awọn imọ-ẹrọ alurinmorin ti o ga julọ, awọn iṣakoso ilana to ṣe pataki, ati awọn ohun elo gidi-aye fun awọn ohun elo carbide.

1. ako alurinmorin Technologies fun Carbide

Awọn ọna meji bori ninu isọdọkan carbide ile-iṣẹ: brazing (aṣa ti o jẹ igbẹkẹle sibẹsibẹ) ati alurinmorin laser (ojutu to ti ni ilọsiwaju). Awọn abuda pataki wọn ni a ṣe afiwe ni isalẹ:

▶ Brazing: Ẹṣin iṣẹ ti Ṣiṣẹda Irinṣẹ Carbide

Brazing ṣe aṣeyọri ifaramọ nipasẹ yo irin kikun (ojuami yo kekere ju carbide / irin) lati tutu ati ki o kun awọn ela apapọ, laisi yo awọn ohun elo ipilẹ. O jẹ ilana akọkọ fun awọn irinṣẹ carbide nitori imunadoko iye owo ati ibamu pẹlu iṣelọpọ ibi-pupọ.

Awọn Ilana bọtini & Aṣayan Filler

Isopọmọra Mechanism: Didà irin filler infiltrates micro-afo nipasẹ capillary igbese, akoso metallurgical bonds pẹlu carbide (WC-Co) ati irin sobsitireti nipasẹ ano tan kaakiri (fun apẹẹrẹ, Cr ni kikun fesi pẹlu C ni carbide lati dagba Cr₃C₂).

Alloys Filler:

Ni-Cr-Da: Ti o fẹ fun awọn ohun elo giga-giga (fun apẹẹrẹ, awọn irinṣẹ milling), yo ni 1050-1150 ° C, ati pe o funni ni idaniloju oxidation to dara julọ.

Ag-Cu-Da: Ti a lo fun awọn irinṣẹ aapọn kekere (fun apẹẹrẹ, awọn ifibọ lathe), yo ni 650-800 ° C, dinku eewu mọnamọna gbona.

Cu-Da: Yiyan ọrọ-aje fun awọn irinṣẹ gige idi gbogbogbo, nilo ṣiṣan lati yọ awọn fiimu oxide kuro.

▶ Alurinmorin lesa: Didara pipe fun Awọn irinṣẹ Iṣe-giga

Alurinmorin lesa nlo ina ti o ni idojukọ (1.06μm fiber laser fẹ) lati ṣẹda awọn adagun didà ti agbegbe, ti n mu agbara-giga, awọn isẹpo abuku kekere. O jẹ apẹrẹ fun awọn irinṣẹ micro-ati awọn geometries eka.

Awọn anfani Imọ-ẹrọ Lori Brazing

Ibanujẹ Itọju Iwọnba: agbegbe ti o ni ipalara ti ooru (HAZ)

Ṣiṣe iyara: Iyara alurinmorin to 50mm/s fun awọn ifibọ carbide, 3x yiyara ju brazing induction.

Aṣayan Ọfẹ Filler: Idapọ taara fun awọn paati carbide ti o ni ogiri tinrin (fun apẹẹrẹ, awọn lilu kekere).

2. Awọn italaya Core & Awọn ilana Ilọkuro

Awọn ikuna alurinmorin Carbide ni akọkọ jẹyọ lati aapọn to ku ati rirọ ti ko dara. 

Awọn ojutu ifọkansi jẹ pataki:

▶ Wahala & Kiki

Fa idi Gbongbo: Aiṣedeede TEC fa awọn iyatọ ifunmọ gbona lakoko itutu agbaiye, ti o nfa aapọn fifẹ ni carbide.

Awọn ojutu:

Lo awọn fẹlẹfẹlẹ agbedemeji agbedemeji (fun apẹẹrẹ, Ni-Cu alloy) lati fa wahala.

Gba alapapo/itutu-igbesẹ wise (oṣuwọn rampu ≤10°C/s) ni fifa irọbi brazing.

Post-weld tempering ni 250 ° C fun 2 wakati lati ran lọwọ wahala nipa 30-50%.

▶ Omi Omi Ko dara

Idi Gbongbo: Agbara dada giga ti Carbide koju ifasilẹ irin kikun.

Awọn ojutu:

Ṣaju-itọju carbide pẹlu lulú Cr lati ṣe fẹlẹfẹlẹ kan ti asopọ Cr₃C₂ kan.

Lo awọn ṣiṣan ti nṣiṣe lọwọ (fun apẹẹrẹ, orisun borax) lati yọ awọn fiimu oxide kuro lori awọn sobusitireti irin.

▶ Filler Irin ogbara

Idi Gbongbo: Alapapo ti o pọ ju tituka adipọ carbide's Co, di irẹwẹsi apapọ.

Awọn ojutu:

Fi opin si akoko alurinmorin si

Ṣakoso iye akoko pulse laser (2-5ms) lati yago fun ifihan gigun.

3. Awọn ohun elo ile-iṣẹ & Awọn Iwadi Ọran

Alurinmorin Carbide ngbanilaaye awọn irinṣẹ iṣẹ ṣiṣe giga kọja awọn apa:

▶ Ṣiṣe Awọn Irinṣẹ Ige

Awọn ifibọ Ọpa CNC: Induction brazing ti WC-Co fi siis si awọn ọpa irin ni lilo Ni-Cr-B-Si kikun (1080 ° C, 45s) ṣaṣeyọri agbara apapọ 200MPa-laiṣe awọn ẹru ẹrọ 5000rpm.

Iyika ri Blades: Aifọwọyi lesa alurinmorin (300W fiber laser) ti carbide eyin to irin disiki din ehin breakage oṣuwọn nipa 60% vs. brazing.

▶ Iwakusa & Ikole

Rock Drilling Bits: Vacuum brazing ti awọn bọtini carbide si awọn ara irin (Ni-Cr filler, 1120 ° C) ṣe idaniloju resistance si awọn ẹru ipa 50MPa; igbesi aye iṣẹ gbooro nipasẹ 2-3x.

▶ konge Engineering

Awọn Irinṣẹ Machining Micro: Fiber laser alurinmorin ti awọn imọran carbide 0.8mm si awọn ọpa irin alagbara (250W, 15mm / s) n ṣetọju iwọn ± 0.01mm deede fun gige gige wafer semikondokito.

4. Future lominu

Alurinmorin arabara: Apapọ alapapo ina lesa pẹlu induction brazing lati dinku fifọ carbide ni awọn isẹpo ti o nipọn.

Idagbasoke Filler Nṣiṣẹ: Ni-Cr-Ti fillers ti o dagba awọn iwe ifowopamọ TiC ti o lagbara pẹlu carbide, imudarasi agbara apapọ nipasẹ 30%.

Ijọpọ adaṣe: Awọn ọna ṣiṣe ti AI pẹlu ibojuwo akoko gidi gidi lati mu awọn aye alurinmorin pọ si fun awọn onipò carbide oniyipada.

Ipari

Alurinmorin Carbide nbeere iwọntunwọnsi ti imọ-jinlẹ ohun elo ati iṣakoso ilana-brazing tayọ ni iṣelọpọ iye owo-daradara, lakoko ti alurinmorin laser jẹ gaba lori awọn ohun elo to ṣe pataki. Nipa didojukọ aapọn ti o ku ati awọn italaya wettability, awọn aṣelọpọ le ṣii agbara kikun carbide ni aṣọ-giga, awọn agbegbe ipọnju giga, lati ẹrọ iṣelọpọ ile-iṣẹ si awọn iṣẹ iwakusa to gaju.