Alloy High-Pressure Casting: Kit ma lyeto me mol kwede nyutu rwom me tic nining?

Alloy High-Casting ki teko: Kit ma lyeto me lyeto moko kwede rwom me tic nining? Buk ma omyera ki kwan pi luwil

I kin jami ma ki lwongo ni aluminum alloy high-pressure casting industry chain, luwil pol kare gi paro pi rwom me yubu jami. Kadi bed ni teko pa jami ma ki tiyo kwede i motoka, rwom me rwom pa jami ma ki tiyo kwede i mac, onyo tek pa jami ma ki yubu i gang tic, jami eni gikub ki jami ma pire tek i yub me yubu jami. I kin jami mapol ma weko, lyeto me lyeto obedo gin ma pire tek, ma moko rwom me mol, lengo, ki kit me yubu gin ma ki lwongo ni molten aluminum alloy, ki bene weko rwom me tic pa gin ma ki lwongo ni casting. Pwony man obi nyamo lok ma mako rwom me lyeto ki kit ma ki yubu kwede ki neno pa lawil, me konyi me ngeyo kit ma lacat wil twero tic kwede ka iyero acel.

1, Niang: Pingo rwom me lyeto i aluminum alloy high-pressure casting "pire tek"?

Cik ma pire tek me tic ki aluminum alloy high-pressure casting tye me diiyo aluminum alloy ma mol i kom gin ma ki yubu ki teko ma malo ki rwom ma lamal, ma weko jami ma rwate oyotoyot. Kit me timo man nyutu ni gin ma ki lwongo ni molten aluminum alloy ni oo i rwom ma opore-omyero obed ma pii romo pongo jami weny ma tye i gin ma ki yubu ni kun bene gengo balo ne pi lyeto madwong.

Kit ma pat pat me aluminum alloy (ma calo A356, A380, ki 6061, ma luwil pol kare gi tiyo kwede) tye ki rwom me lyeto ma pat pat ki rwom me lyeto maber.

Me labolle, A356 aluminum alloy (ma pol kare kitiyo kwede i kom tyen motoka ki i kom injin) tye ki rwom me lyeto ma romo 615-655°C, ma mito rwom me lyeto maber loyo 650-680°C.

A380 aluminum alloy (ma ki maro pi ot ma ki keto iye mac ki jami ma kubu) tye ki rwom me lyeto ma lapiny (ma romo 570-600°C), ma mito rwom me lyeto ma opore ma romo 620-650°C.

Alokaloka me lyeto ma kato ±15°C twero kelo peko me rwom, ma pol kare nen ka dong ki yubu gin ma ki lwongo ni casting, ma kelo wel cente mukene bot luwil i kit me tic odoco ki dwoko jami ma ki yubu. 2. Lyeto ma lapiny tutwal: Gin ma ki yubu ki jami ma ki lwongo ni Castings tye ki "peko ma tye iye," peko magi aye gin ma pol loyo

Pi luwil, gin ma ki yubu ki lyeto ma lapiny twero nen calo "pe ki balo," ento gi tye ki goro ma ki kano ki twero rweny woko ka ki tiyo kwede lacen. Peko eni nen i kabedo adek:

1. Peko ma mol maber: Kit ma ki poro kwede tye ma lapiny, ki jami ma ki yubu ni pe kitwero pongo ne.

Kit ma molten aluminum alloy ni rwate kwede ki rwom me lyeto. Ka lyeto tye piny tutwal, rwom me buru pa gin ma ki lwongo ni molten metal ni mede matek, ma tiyo calo "cooling syrup," ma miyo en pe twero pongo ka ma ki yubu iye ma tidi, cel ma tidi, onyo kabedo ma opong ki teko madwong. Luwil romo nongo jami ma ki yubu ki:

Bal ma tye i nget ki tung ma pe otum (me labolle, jami ma otur i kom jami ma tiyo ki mac onyo bur ma obale i kom jami me motoka);

Pek pa cel ma pe rom ki "necking" ma ki keto i kabedo moni, ma kelo dwoko piny jami ma tiyo kwede (me labolle, teko ma pe romo i kom jami ma tingo pek). I kom kwan ma kwako wilo jami me motoka, lacat wil ma ki lwongo ni A356 aluminum alloy melt temperature onongo tye piny 640°C, ma oweko pe ki pongo spokes i wheel hub castings. Man oweko wel jami ma ki balo odongo nio wa i 23%, ma oweko ki juku yubu motoka ni.

2. Peko me ribbe/jami ma ki keto iye: Jami ma ki kano i kin gin ma ki yubu ni dwoko teko ki tek pa jami ma ki keto iye.

Ka rwom me lyeto pe oo i wel ma mite me lyeto pa gin ma ki rubu ni, jami ma ki lwongo ni alloying elements ma calo silicon ki magnesium gubi bedo i molten aluminum, onyo jami ma calo slag ki oxides twero bedo ka rubu iye. "Jami ma pat" ni twero bedo i kin gin ma ki yubu ni:

Peko me rwate: Gin ma ki yubu ni twero tur i kabedo ma pe leng ka ki keto iye peko. Me labolle, kwo pa gin ma ki lwongo ni connector i kom cing robot ma ki tiyo kwede i gang tic ki dwoko piny ki i mwaka abic me oo i mwaka acel pi peke pa fusion.

Gin ma ki lwongo ni Oxide Inclusions: Gin ma obale ni twero balo pek pa aluminum alloy ki kelo balo oyotoyot i kabedo ma ngiic, acidic, onyo alkaline. (Me labolle, aluminum alloy brackets pi jami ma ki tiyo kwede i gang twero bedo ki goro i kin dwe abicel.) Pi luwil ma gi keto yub me tic pi kare malac (ma calo jo ma gi tiyo ki motoka manyen ki jami me yot kom), peko ma bino pi jami ma ki kano ni kato peko ma twero kelo peko i kom jami ma ki yubu.

3. Medo rwom me buru: gin ma ki yubu ni "yweyo" marac, ma weko tic me umu ne rweny

Ka lyeto tye piny tutwal, gin ma ki lwongo ni molten aluminum alloy ni pe twero gonyo hydrogen ma opong (ma pol kare ki lwongo ni "incomplete degassing"). Hydrogen ni dugu i kin jami ma tiino i kare me ngiico pa jami ma ki cwalo ni. Ka lawil tye ka wilo gin ma ki lwongo ni seals (ma calo hydraulic valve blocks ki water pump housings), pores twero kelo:

Peko ma mol i te rwom ma malo (me labolle, rwom me teko pa jami ma tiyo ki pii opoto piny, ma weko en pe tiyo maber);

Peko me lyeto ki mac ma ki keto i kom gin ma ki yubu ni (me labolle, radiators ma tiyo ki mac twero nongo dwoko piny me 30% i kit ma lyeto kato kwede pi pores).

3. Lyeto ma okato: Rwenyo ma okato kare, rwenyo wel ki rwom me tic

Ka kiporo ki lyeto ma lapiny tutwal, lyeto ma malo tutwal me mol romo nen calo "ma mol maber," ento i adaa, jami ma tye iye obale woko, ma okelo rweny bot lawil.

1. Alloying Element Burnout: Tic ne loko ki rwom ma opore ki pe rwate ki gin ma mite me tic kwede.
Jami ma rwom gi lapiny ma tye i aluminum alloys, ma calo magnesium ki zinc, gi loko oyotoyot i lyeto ma malo (man ki ngeyo ni "burnout"). Me labolle, ka lyeto pa A380 aluminum alloy kato 670°C, rwom me lyel pa magnesium mede ki 5% me oo 15%, ma kelo:
Dwoko piny pa 10%-15% i teko pa gin ma ki lwongo ni casting (me labolle, ot ma ki yubu ki mac twero tur ka opoto);
Pek pa jami ma balo ne (me labolle, jami ma ki tiyo kwede i nam twero bedo ki jami ma balo ne i kin dwe adek).
Ka luwil guye jami ma ki yubu ma lubu kit ma rwom me tic tye kwede, gin romo nongo ni jami ma ki yubu ni pat ki gin ma ki coyo i gicikke, ma weko gi wilo jami odoco, ma medo kare ki wel cente ma mite.

2. Kit ma dit pa nyig ma ki lwongo ni Coarse Grain: Castings doko goro, ki tek pa jami ma ki keto i kom gi poto piny.
Lyeto ma malo weko jami ma ki lwongo ni coarse metals dongo ka aluminum alloy ni ngiic, ma tiyo calo jami ma ki gedo ma goro, ma dwoko piny rwom me gedo. Ka ki keto i peko ki yeng yeng (ma calo jami ma ki keto i kom motoka ki jami ma ki keto i kom jami ma ki tiyo kwede me gedo), jami ma ki yubu ni gi twero:

Turo ma goro (poto oyotoyot labongo loko ne);

Kwo me ool ma ki dwoko piny (rweny oyotoyot ingee peko ma ki dwoko cen, ma calo tur pa jami ma ki keto i motoka ingee tic kwede pi mairo 10,000).

Lawil jami tic me gedo owaco ni lacat jami gi ni ogwoko lyeto pa 6061 aluminum alloy i 700°C (ma kato 650-680°C), ma oweko gin ma ki keto i cuk otur i kare me temo, ma obalo jami ma wel ne romo 200,000 yuan.

3. Oxidation matek: "Crusting" me kom ma ki yubu, ma medo wel cente me tic kwede

Lyeto ma okato kare weko jami ma ki lwongo ni molten aluminum alloy ki yamo rwate oyotoyot, ma weko oxide film ma pek (Al2O3). Ka gin ma ki lwongo ni oxide film ni orwate ki molten aluminum, twero bedo i kom Gin ma ki lwongo ni Casting Surface:

Bur ki buru (me labolle, jami ma woko mito ni ki med ki buru ne, medo wel cente me tic kwede ki 20%);

Peko ma okato kare (me labolle, ka ma ki umu iye pe obi rwate maber, ma miito ni ki yub ne odoco). Pi luwil ma gi keto jami ma nen calo gin ma pire tek (ma calo jo ma gi tiyo ki jami ma tiyo ki mac ki jami ma i ot), peko eni twero kelo rwenyo jami ma ki yubu ki motoka onyo mito yubu ne ma wel ne tek.

4. Luwil twero ngeyo nining kero pa lacat wil me juku lyeto me lyeto? Dul adek ma pire tek

Iyonge niang adwogi pa lyeto me lyeto, luwil romo tic ki jami adek ma pire tek ma lubo ni me temo tic pa lucat wil ma ki yubu ki aluminum alloy high-pressure casting suppliers ki gengo peko:

1. Nen jami ma ki tiyo kwede me neno rwom me lyeto ki rekod

Lucat wil ma rwom gi lamal gubi bedo ki jami ma ki tiyo kwede me pimo lyeto ma ki lwongo ni infrared thermometers, jami ma ki tiyo kwede me juku lyeto pa mac, ki gwoko rekod me rwom me lyeto pa jami ma ki lwongo ni melting pi batch acel acel (me labolle, coyo rwom me lyeto i dakika 10 weng, ki rwom me ±5°C). Luwil twero penyo lacat wil me miini rekod me rwom me lyeto pi dwe adek mukato ni. Ka rwom me lyeto tye ka loko kare ki kare (ma kato ±10°C) onyo rekod ma pe otum, lucat wil omyera gubed ki neno. 2. Mito ripot me neno kit ma jami tye kwede

Luwil ma opore gubi timo kwedo jami ma ki lwongo ni metallographic (me neno dit pa nyig), temo kit ma jami tiyo kwede (teko me mako, tek), ki temo ma pe balo (X-ray ki ultrasonic testing pi porosity ki inclusions) i kom dul acel acel me castings. Luwil twero keto cwiny gi i kom:

Ka ce dit pa nyig cam ni rwate ki cik (me labolle, A356 aluminum alloy grain diameter omyera obed ≤100μm);

Ka ce porosity tye ≤2% (pi jami ma ki umu, ≤1%);

Ka ce gin ma ki lwongo ni alloying element tye i kin rwom ma opore (me labolle, gin ma ki lwongo ni A380 aluminum alloy magnesium content omyera ki bed i kin 0.1-0.3%).

3. Kwedo rwom me tic pa lacat wil ni

Lucat wil ma ki ngeyo gubi yubu waraga ma nyutu kit me yubu jami ma pat pat ma ki yubu ki aluminum, medo ki:

rwom me lyeto maber ki rwom me lyeto pi jami ma pat pat;

Cawa me kwanyo yamo ki kwanyo lum (me labolle, kwanyo yamo mukwongo i 650°C);

Pwonyo lutic ki yoo me temo (me labolle, neno kare ki kare kit me gwoko lyeto). Luwil twero tic ki jami ma ki neno i gang tic onyo jami ma ki neno i factory me neno ni lucat wil gi lubu cik me tic ki gi juku yubu jami ma lubu ngec ma gu kato ki iye.