Mu guta umucanga, abarenga 95% bakoresha umucanga wa silika. Inyungu nini yumucanga wa silika nuko ihendutse kandi byoroshye kubona. Nyamara, ibibi byumucanga wa silika nabyo biragaragara, nkubushyuhe buke bwumuriro, icyiciro cya mbere kibaho nko kuri 570 ° C, umuvuduko mwinshi wo kwagura ubushyuhe, byoroshye kumeneka, kandi ivumbi ryatewe nikiruhuko ryangiza cyane ubuzima bwabantu. . Muri icyo gihe, hamwe n’iterambere ryihuse ry’ubukungu, umucanga wa silika ukoreshwa cyane mu nganda zubaka, inganda z’ibirahure, ububumbyi n’izindi nganda. Hano harabuze umucanga wa silika wo murwego rwohejuru kandi uhamye. Kubona abasimbuye nikibazo cyihutirwa kwisi yose.
Uyu munsi reka tuganire ku itandukaniro rya bimwe mubisanzwe byumucanga mbisi mubucuruzi bwinganda, nkurikije itsinda rya sndfoundry uburambe bwimyaka myinshi, nabwo twakira inshuti nyinshi kwitabira ibiganiro.
1．Umusenyi Wibisanzwe Mubishingwe
1.1 Umusenyi karemano
Umusenyi karemano, ukomoka muri kamere, nkumucanga wa silika, umucanga wa chromite, umucanga wa zircon, umucanga wa elayo ya magnesium nibindi.
1.2 Umucanga
Nkumucanga wa silika artificiel, aluminium silikatike yumucanga wubukorikori, nibindi.
Hano turamenyekanisha cyane cyane aluminium silikatike yumucanga wumucanga.
2. Aluminium silikate ikurikirana yumucanga wububiko
Aluminium silikatike yumucanga wubukorikori, izwi kandi kwizina rya "ceramic foundry sandry", "Cerabeads", "amasaro ya ceramic", "ceramsite", "Umusenyi wa sintetike wumucanga wo guta (umucanga wukwezi)", "amasaro ya mullite", umucanga "," Ceramcast "," Super sand ", nibindi, ntamazina ahwanye kwisi kandi ibipimo nabyo biratandukanye. (Twise umucanga ceramic muriyi ngingo)
Ariko hari ingingo eshatu zimwe kugirango tumenye nkibi bikurikira:
A. Gukoresha ibikoresho bya firimu ya aluminium (bauxite, kaolin, amabuye yatwitse, nibindi) nkibikoresho fatizo,
B. Ibice byumucanga ni serefegitura nyuma yo gushonga cyangwa gucumura;
C. Ibigize imiti cyane harimo Al2O3, Si2O, Fe2O3, TiO2 nizindi oxyde.
Bitewe nuko hari ibicuruzwa byinshi mubushinwa byumucanga wumubumbyi, hariho amabara nubuso butandukanye biva mubikorwa bitandukanye hamwe n’ahantu hatandukanye h’ibikoresho fatizo, hamwe nibirimo Al2O3 bitandukanye hamwe nubushyuhe bwumusaruro.
3. Ibipimo byumucanga kubishingwe
| Sands | NRD /℃ | T．E． (20-1000 ℃) /% | B.D ./ (g / cm3) | E. | TC (W / mk) | pH |
| FCS | 001800 | 0.13 | 1.8-2.1 | ≤1.1 | 0.5-0.6 | 7.6 |
| SCS | 801780 | 0.15 | 1.4-1.7 | ≤1.1 | 0.56 | 6-8 |
| Zircon | 251825 | 0.18 | 2.99 | ≤1.3 | 0.8-0.9 | 7.2 |
| Chromite | 001900 | 0.3-0.4 | 2.88 | ≥1.3 | 0.65 | 7.8 |
| Olive | 1840 | 0.3-0.5 | 1.68 | ≥1.3 | 0.48 | 9.3 |
| Silica | 1730 | 1.5 | 1.58 | ≥1.5 | 0.49 | 8.2 |
Icyitonderwa: Uruganda rutandukanye nu mwanya wumucanga, amakuru azagira itandukaniro.
Hano hari amakuru asanzwe.
3.1 Ibiranga ubukonje
Ukurikije uburyo bwo gukonjesha, ubushobozi bwo gukonjesha umucanga bifitanye isano ahanini nimpamvu eshatu: ubushyuhe bwumuriro, ubushyuhe bwihariye, nubucucike nyabwo. Kubwamahirwe, ibi bintu bitatu biratandukanye kumucanga nababukora cyangwa inkomoko zitandukanye, kubwiterambere rero Mugihe cyo gusaba uburyo bwo guta ibyuma bidashobora kwangirika, twasanze umucanga wa chromite ufite ingaruka nziza zo gukonjesha, umuvuduko ukonje byihuse, hamwe no kwihanganira kwambara cyane gukomera, bikurikirwa n'umusenyi wa ceramic wahujwe, umucanga wa silika, n'umucanga wa ceramic. , gukomera-kwihanganira gukomera kwa casting bizaba munsi yamanota 2-4.
3.2 Kugereranya kugereranya
Nkuko bigaragara hejuru yishusho, ubwoko butatu bwumucanga bugumana amasaha 4 hamwe na 1590 ℃ mu itanura.
Umucanga wumucanga ceramic gusenyuka nibyiza. Uyu mutungo kandi wasabye neza mubicuruzwa bya Aluminium.
3.3 Imbaraga zigereranya umusenyi wububiko
A.Twe ibipimo bya resin yatwikiriwe numusenyi wububiko
| Umusenyi | HTS (MPa) | RTS (MPa) | AP (Pa) | Ikigereranyo cya LE (%) |
| CS70 | 2.1 | 7.3 | 140 | 0.08 |
| CS60 | 1.8 | 6.2 | 140 | 0.10 |
| CS50 | 1.9 | 6.4 | 140 | 0.09 |
| CS40 | 1.8 | 5.9 | 140 | 0.12 |
| RSS | 2.0 | 4.8 | 120 | 1.09 |
Icyitonderwa:
1. Ubwoko bwa resin nubunini birasa, umucanga wumwimerere nubunini bwa AFS65, hamwe nuburyo bwo gutwikira.
2. CS: Umusenyi wubutaka
RSS: Umucanga wa Silica ukaranze
HTS: Imbaraga zishyushye.
RTS: Icyumba imbaraga
AP ： Ikirere
LE Igipimo: Igipimo cyo kwaguka.
3.4 Igipimo cyiza cyo gutunganya umucanga ceramic
Uburyo bwo gutunganya amashyuza n'imashini byombi nibyiza byumucanga wubutaka, bitewe n '' imbaraga zacyo zingana, gukomera kwinshi, kwihanganira kwambara cyane, umucanga wa ceramique hafi yigihe kinini cyo kuvugurura umucanga mbisi mubucuruzi bwumushinga wumucanga. Dukurikije amakuru yo gutangaza abakiriya bacu bo murugo, umucanga wubutaka urashobora kugarurwa byibuze inshuro 50. Dore imanza zimwe zisangira:
Mu myaka icumi ishize, kubera umucanga wa ceramique wangiritse cyane, imiterere yumupira ishobora gufasha kugabanya ibyongeweho hafi ya 30-50%, ibice bigize ibice hamwe no gukwirakwiza ingano ihamye, gukwirakwiza umwuka mwiza, kwaguka kwinshi kwubushyuhe hamwe nibiranga ibintu bishobora kongera gukoreshwa nibindi, nibindi, nkibikoresho bidafite aho bibogamiye, birakoreshwa cyane mubikorwa byinshi birimo ibyuma, ibyuma, ibyuma bya aluminiyumu, umuringa, hamwe nicyuma. Gushinga ibishingwe bifite Resin isize umusenyi, Umusenyi wubukonje bukonje, gutunganya umucanga wa 3D, No-bake resin sand, inzira yishoramari, inzira yatakaye, inzira yikirahure cyamazi nibindi.
Igihe cyo kohereza: Jun-15-2023
