Cov teeb meem thiab kev txhim kho ntawm cov tev thiab crushing ntawm lub kab noj kab noj hniav hauv qab ntawm kab noj hniav profiles

1 piav qhia ntawm kev ua kom pom tseeb

Thaum extruding kab noj hniav profiles, lub taub hau ib txwm kos, thiab tus puas yog tus nqi tsis zoo yog yuav luag 100%. Cov khoom siv tsis xws luag ntawm qhov profile yog raws li hauv qab no:

2 Kev Ntsuam Xyuas Ua Ntej

2.1 Kev txiav txim los ntawm qhov chaw ntawm qhov tsis xws luag thiab cov duab ntawm qhov tsis xws, nws yog delamination thiab tev.

2.2 Causes: Vim tias cov tawv nqaij ntawm cov pas nrig dhau los ua tus pas nrig ua ke, cov khoom siv tsis sib xws tau tshwm sim ntawm cov pas nrig tom ntej.

3 Kev Tshawb Xyuas thiab Kev Ntsuam Xyuas

Electron tsom tsom rau hluav taws xob ntawm cov khoom siv tsis tshua muaj zog, lub zog ua haujlwm siab thiab hla-ntu tsis xws luag yog nqa tawm.

3.1 Casting Rod Tsawg Tshaj Tawm

11 nti 6060 Casting Rod qis tshaj tawm cov khoom sib luag saum npoo sib xyaws 6.08mm

3.2 casting rod siab magnification

Ze rau Epidermis Segregation Mat Faib Cov Kab Qhov chaw

Casting Qws 1/2 txoj hauj lwm

3.3 electron tsom iav tsom ntsuas ntsuas qhov tsis xws luag

Nthuav tawm qhov tsis xws li qhov chaw nyob 200 npaug

Daim duab lub zog spectrum

Cov tsom xam tawm

4 Luv luv piav qhia txog kev tshuaj ntsuam xyuas tau

4.1 A 6mm Town cais cov txheej tshwm nyob rau ntawm qhov chaw qis-magnification saum npoo ntawm lub pas nrig cam khwb. Txoj kev cais yog qhov qis-yaj-pom-point enutectic, tshwm sim los ntawm undercooling ntawm casting. Lub macroscopic yog dawb thiab ci, thiab tus ciam nrog matrix yog qhov tseeb;

4.2 Lub zog tshaj plaws qhia tau tias muaj qhov hws ntawm ntug ntawm lub rer ntawm lub ntsej muag ua ke, qhia tias qhov kev siv cua txias ntau dhau thiab cov kua txhuas tsis pub txaus. Nyob rau ntawm lub interface txheej thiab cov theem ua ke, theem ob yog qhov tsawg heev thiab tsis yog qhov chaw ua kom ruaj khov. Qhov txoj kab uas hla ntawm lub pas nrig ua ke yog 1/2 lub xub ntiag ntawm qhov chaw thiab cov xwm txheej tsis sib xws ntxiv piv txwv txog cov txheej txheem saum npoo av thiab cov xwm txheej rau kev coj ua ntawm cov dendrites;

4.3 daim duab ntawm tus ntoo khaub ncaws tsis xws luag nyob rau hauv lub 200x daim teb tsom iav tsom iav yog cov tawv nqaij yog tev, thiab cov saum qhov twg cov tawv nqaij tsis yog tev. Tom qab Eds cov ntsiab lus tsom xam, cov ntsiab lus 1, 2, 3, thiab 6 yog qhov sib xyaw ua ke, thiab yog peb lub ntsiab, qhia tias muaj peb tus neeg sawv cev ua kom zoo nkauj hauv cov khoom siv;

4.4 C thiab 0 Cheebtsam hauv cov khoom siv ntawm cov ntsiab lus 1, 2, thiab 6 yog siab dua, thiab yog ntau dua li cov ntsiab lus 1 thiab 6, qhia tias muaj pes tsawg leeg ntawm Qhov chaw tsis ncaj yog qhov tsis ncaj thiab muaj cov npoo impurities txuam nrog;

4.5 Ua cov tshuaj ntsuam xyuas feem ntau ntawm cov ntsiab lus 2 thiab 3 thiab pom tias cov khoom siv los ntawm Talcum tej zaum yuav tau koom nrog saum npoo ntawm cov pas nrig txhuas thaum lub sijhawm ua tiav.

5 Ntsiab Lus

Tom qab kev txheeb xyuas saum toj no, nws tuaj yeem pom tau tias vim muaj kev sib cais, cov tawv nqaij tsis sib xws, thiab tawv nqaij yog dov rau hauv cov pwm kab noj hniav thaum lub sijhawm extrusion, ua rau muaj kev tawm tsam ntawm lub taub hau. Los ntawm txo qis qhov kub ntawm lubast pas nrig thiab thickening cov rasness tuab, cov teeb meem tev thiab cov teeb meem sib tsoo tuaj yeem txo lossis maj mam daws; Qhov kev ntsuas zoo tshaj plaws yog ntxiv cov tshuab ua kom ntxiv rau peeling thiab extrusion.

Edited los ntawm May Jiang los ntawm Mat Aluminium