Xaiv qhov zoo tshaj plaws ciab rau poob ciab casting Hoobkas kev ua haujlwm tsis yog hais txog kev nrhiav qhov kev xaiv pheej yig tshaj plaws - nws yog hais txog kev tshem tawm cov ntsiab lus zais ua ntej lawv mus txog qhov cub. Peb tau pom ntau qhov chaw ua haujlwm ntau dhau ntawm qhov kub hnyiab vim tias cov khoom siv quav ciab txhaws cov kab hauv cov dej cobalt alloy twj tso kua mis. Lwm tus tau muab pov tseg 30% ntawm ib pawg tom qab lub plhaub tawg - taug qab rov qab mus rau qhov tsis sib xws ntawm thermal expansion thaum dewaxing. Cov no tsis yog qhov kev pheej hmoo theoretical. Lawv yog cov nqi txhua hnub hauv lub sijhawm, cov khoom siv, thiab cov neeg siv khoom ntseeg siab.
Yog vim li cas Standard Waxes Fail nyob rau hauv Industrial Demand
Feem ntau cov chaw tsim khoom pib nrog cov peev txheej dav dav tsim los rau cov hniav nyiaj hniav kub lossis cov hlau tsis tshua muaj siab aluminium castings. Qhov ntawd ua haujlwm-txog thaum koj khiav AMS 5387 cobalt alloy valve lub cev ntawm 1,550 ° C los yog T800-raws li nozzles yuav tsum tau ± 0.05 hli qhov ntev tswj ntawm 0.8 hli phab ntsa. Standard waxes tsis muaj peb yam uas tsis muaj kev sib tham: cov hmoov tshauv dawb paug hauv qab 650 ° C, xoom nto tack tom qab demolding, thiab thermal shrinkage hauv qab 0.45% ntawm 25 ° C mus rau 60 ° C. Yog tsis muaj lawv, koj tau txais cov pa roj carbon deposits uas ua kom puas ntog, pwm cab uas distorts nyias flanges, los yog micro-cracks nyob rau hauv ceramic shells thaum lub sij hawm dewaxing.
Peb tau sim xya qhov kev lag luam waxes thoob plaws 18 lub hlis - suav nrog ob lub tswv yim sib xyaw - ntawm cov khoom siv tiag tiag: piston twj tso kua mis lub tog raj kheej vaj tse, hydraulic siab li qub, thiab winch center ncej rollers. Tsuas yog peb dhau lub voj voog validation. Tus neeg ua yeeb yam saum toj kawg nkaus tsis yog qhov siab tshaj plaws-melting-point ciab. Nws yog ib qho uas muaj qhov nqaim tshaj plaws solidification ntau yam (52-54 ° C), qis tshaj viscosity ntawm 65 ° C (8,200 cP), thiab ntawv pov thawj cov hmoov tshauv qis dua 0.003% tom qab 620 ° C / 2-teev burnout ib ASTM F2897.
Plaub yam kev cai tsis muaj lub Hoobkas yuav tsum hla
Tsis nco qab kev lag luam thov. Nov yog qhov tseem ceeb thaum tsim nyog siv quav ciab rau siab ncaj ncees peev casting:
- Dimensional stability tom qab txhaj tshuaj: Ciab yuav tsum tuav GD&T kam rau ua los ntawm kev ua kom txias-txawm yog nyob rau hauv asymmetric qhov chaw xws li twj tso kua mis foundations nrog 220 hli ntev thiab 3.2 hli phab ntsa thickness. Peb ntsuas shrinkage ntawm peb lub ntsiab lus: core, nruab nrab phab ntsa, thiab flange ntug. Txais kev sib txawv: ≤0.38% tag nrho cov kab hloov pauv.
- Dewaxing compatibility: Chav dewaxing xav tau sai, ua tiav yaj-tawm yam tsis muaj o lossis blistering. Waxes nrog > 0.8% dawb fatty acids ua npuas ncauj nyob rau hauv saturated chav-ua rau lub plhaub delamination. Daim ntawv pov thawj: tsis pom qhov seem hauv 3 hli sab hauv cov cua txias tom qab 12 feeb 160 ° C chav voj voog.
- Shell adhesion tswj: Adhesion ntau dhau ua rau lub plhaub tawg thaum tuav. Tsawg dhau ua rau slurry nqa-tawm. Qhov zoo tshaj plaws wax nto zog: 34-36 mN / m ntawm 30 ° C - ntsuas los ntawm kev sib cuag lub kaum sab xis goniometry, tsis yog cov ntaub ntawv kwv yees.
- Reusability pib: Recycled wax degrades sai tshaj plaws nyob rau hauv volatile feem. Peb taug qab flash point nco thiab acid naj npawb nce. Kev txwv rov siv dua: max 3 cycles yog cov kua qaub nyob twj ywm <0.8 mg KOH/g thiab flash point tseem ≥110°C.
Yuav ua li cas QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. Validates Wax Performance
Ntawm peb qhov chaw ua haujlwm ISO-raws li hauv Qingdao, kev tsim nyog siv quav ciab tsis yog kev sim ua haujlwm - nws yog lub rooj vag tsim khoom. Txhua tus siv quav ciab tshiab tau dhau plaub qhov kev sim ua ke:
- AMS 5387 cobalt alloy plug nrog 0.5 hli radial kam rau ua ntawm 12 hli OD.
- CMM ntsuas ua ntej thiab tom qab dewaxing kom paub qhov txawv txawv.
- Thermogravimetric tsom xam (TGA) ntawm burnout residue ntawm stainless hlau substrates-tsim tawm tsam SEM-EDS elemental mapping.
- Accelerated aging: 72 teev ntawm 40 ° C / 85% RH, ua raws li lub zog tensile thiab elongation kuaj ib ASTM D638.
Cov txheej txheem no ntes tau ib qho quav uas tau ntsib txhua daim ntawv spec - tab sis ua tsis tiav # 2. Nws coefficient ntawm thermal expansion spiked saum 85 ° C, ua rau 0.12 hli offset nyob rau hauv ib tug tseem ceeb sealing xub pwg. Qhov ntawd yuav tau dhau qhov kev tshuaj ntsuam pom tab sis xau ntawm 350 bar hauv kev ua haujlwm. Peb tsis xa cov kev xav. Peb xa cov ntaub ntawv.
Xaiv Koj Cov Ciab: Actionable Next Steps
Tsis txhob cia siab rau cov qauv xa khoom ib leeg. Khiav daim ntawv txheeb xyuas no ua ntej ua tiav koj zoo tshaj plaws ciab rau poob ciab casting Hoobkas xaiv:
- Thov tag nrho TGA nkhaus-tsis yog "dawb tshauv" thov. Demand residue hnyav % ntawm 550 ° C, 600 ° C, thiab 650 ° C.
- Kuaj dewaxing ntawm koj lub plhaub tiag tiag: tib lub binder, tib stucco, tib lub sijhawm ziab. Ib lub wax zoo meej rau silica sol shells yuav ua tsis tau zoo nrog colloidal zircon.
- validate txhaj tsis nyob rau hauv koj cov cav tov: nozzle kub, sau ceev, ntim siab. Kev hloov pauv ntawm 2 ° C hauv qhov kub tuaj yeem hloov qhov roughness Ra los ntawm 0.4 µm - txaus cuam tshuam rau cov khoom siv slurry wetting.
- Yuav tsum tau batch traceability: ntau tus naj npawb, cov ntaub ntawv pov thawj raw khoom, thiab QC cov ntaub ntawv cuam tshuam koj daim ntawv xaj khoom. Tsis muaj kev zam.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. cov ntaub ntawv pov thawj waxes ua tau raws li cov theem pib rau nws tus kheej ntau lawm - thiab qhia tag nrho cov txheej txheem kev lees paub nrog cov neeg koom tes tsim nyog. Vim tias kev ua haujlwm zoo ib yam tsis yog qhov chaw them nqi. Nws yog thawj txheej ntawm qhov kev ncaj ncees rau txhua lub siab valve, txhua lub twj tso kua mis, txhua qhov cobalt alloy ua kom muaj sia nyob hauv lub ntiaj teb kev ntxhov siab.
Saib dhau qhov melting point. Ntsuas shrinkage. Track residue. Txheeb xyuas koj qhov geometry. Qhov ntawd yog li cas koj nres chasing casting qhov tsis xws luag - thiab pib xa cov khoom ua haujlwm.
