Hauv kev lag luam hlau, cov lus nug ntawm seb puas tuag casting suav nrog yaj casting yog ib qho ntawm ob tus kws kho mob thiab cov neeg yuav khoom. Thaum ob qho tib si yog cov txheej txheem hlau, lawv tuav cov kev sib txuas sib txawv hauv kev lag luam saw thiab ua haujlwm sib txawv. Kab lus no yuav soj ntsuam kev sib raug zoo ntawm kev tuag casting thiab yaj casting los ntawm peb qhov kev xav: txheej txheem xwm txheej, txheej txheem sib txawv, thiab kev sib koom ua lag luam, muab cov ntaub ntawv qhia meej meej rau cov kws tshaj lij kev lag luam.
1. Cov ntsiab lus tseem ceeb: Qhov txawv ntawm qhov chaw ntawm Tuag Casting thiab Melt Casting
Tuag casting tsis suav nrog yaj casting, tab sis yog cov txheej txheem qis qis siv cov khoom siv yaj ua cov khoom siv raw. Ob qho tib si sib txuas tab sis sib txawv sib txuas hauv cov hlau ua cov saw hlau:
- Melting thiab Casting: Cov txheej txheem npaj theem ntawm cov khoom siv hlau (sib npaug rau "cov khoom siv hauv paus").
- Tuag-casting: Qhov zoo molding thiab raug theem ntawm precision qhov chaw (sib npaug rau "kawg khoom ua").
II. Melting thiab Casting: Thawj txheej txheem tseem ceeb hauv kev ua hlau
2.1 Core Functions ntawm Melting thiab Casting
Melting thiab casting yog cov txheej txheem ntawm kev hloov cov khoom siv hlau (ore, cov khoom siv rov ua dua tshiab, thiab lwm yam) rau hauv cov khoom siv raw khoom. Nws cov haujlwm tseem ceeb suav nrog:
- High -kub smelting: Hloov cov hlau rau hauv lub xeev molten ntawm qhov kub ntawm 1000-1700℃.
- Kev tswj kev sib xyaw ua ke: Kho qhov sib piv ntawm cov ntsiab lus alloying (xws li aluminium-silicon alloys thiab zinc alloys).
- Refining: Tshem tawm impurities (oxides, gases) los txhim kho cov khoom siv.
- Ingot Forming: Casting ntshiab molten hlau rau hauv cov qauv qauv kom yooj yim cia thiab thauj mus los (xws li txhuas ingots, zinc ingots, thiab round bars).
2.2 Lub luag haujlwm ntawm Casting
- Hom Implementers: Tshwj xeeb smelters (xws li, aluminium smelters, tshwj xeeb alloy manufacturers)
- Core Output: Hlau ingots (piv txwv li, A356 aluminium alloy ingots) uas ua tau raws li ASTM / ISO qauv
- Kev cuam tshuam zoo: ncaj qha txiav txim siab qhov ruaj khov ntawm cov khoom siv hauv kev ua haujlwm qis
III. Tuag Casting: Los ntawm Hlau Ingots rau Precision Parts
3.1 Tshwj xeeb zoo ntawm cov txheej txheem tuag Casting
Tuag casting yog ib qho kev ua tau zoo thiab raug hlau ua tshuab. Nws cov yam ntxwv tseem ceeb muaj xws li:
- Siab -siab, siab-kev sib sau ceev: 30-150 MPa txhaj tshuaj siab, filling ceev txog 50 m / s
- Ze ntawm -net- lub peev xwm muaj peev xwm: Ib feem ntawm qhov raug ncav cuag ± 0.1 hli, txo cov kev ua tom qab
- Loj - teev ntau lawm: Ib qho - ib feem ntau lawm voj voog luv li 30 vib nas this, haum rau siab - ntim tsim
3.2 Txheej Txheem Tuag Casting
1. Raw Material Remelting: Txheem hlau ingots remelted nyob rau hauv tuag-casting tshuab lub cub tawg (kub tswj nyob rau hauv ± 5℃).
2. Kev Npaj Pwm: Preheat cov pwm rau 150-300℃thiab thov tus neeg sawv cev tso tawm.
3. Siab-Kev Txhaj Tshuaj: Molten hlau ua rau pwm kab noj hniav ntawm kev kub ceev thiab solidifies nyob rau hauv siab.
4. Casting Processing: Pwm qhib thiab ejection, riser tshem tawm, thiab kev kho deg (xws li T6 kho cua sov).
Txheej txheem kev sib koom tes tsim muaj nuj nqis. Melting thiab tuag casting yog zoo li "pem hauv ntej thiab nram qab kawg" ntawm hlau ua. Tus qub muab siab - "cov khoom xyaw" zoo rau yav tom ntej, thaum tom kawg hloov cov ntaub ntawv raw rau hauv siab - tus nqi- ntxiv "cov khoom tiav." Kev nkag siab txog qhov sib txawv ntawm lawv cov luag haujlwm tuaj yeem pab cov tuam txhab ua kom zoo dua kev tswj cov saw hlau thiab txhim kho cov khoom zoo sib xws.
