... Sintered ceramic jecha rekugadzira nechando chepakati bhokisi - Shenghuo

Sintered ceramic jecha rekugadzira nechando chepakati bhokisi

Tsanangudzo Pfupi:

Iyo inotonhora bhokisi nzira inoreva kuumbwa kwejecha resin inogadziriswa / kuomeswa nekufuridza mugasi kana aerosol, uye inoumbwa ipapo pamhepo tembiricha.Nzira yakajairika ndeye triethylamine nzira, inoshandisa phenolic-urethane resin uye inoomeswa nekufuridza triethylamine gasi.Hunhu hwechiitiko ichi ndeichi: jecha repakati rinogona kushandiswa kwenguva yakareba, nguva yekudhirowa ipfupi, kugona kwekugadzira kwakakwira, uye simba rekushandisa rakaderera.


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Product Tags

Iyo inotonhora bhokisi nzira inoreva kuumbwa kwejecha resin inogadziriswa / kuomeswa nekufuridza mugasi kana aerosol, uye inoumbwa ipapo pamhepo tembiricha.Nzira yakajairika ndeye triethylamine nzira, inoshandisa phenolic-urethane resin uye inoomeswa nekufuridza triethylamine gasi.Hunhu hwechiitiko ichi ndeichi: jecha repakati rinogona kushandiswa kwenguva yakareba, nguva yekudhirowa ipfupi, kugona kwekugadzira kwakakwira, uye simba rekushandisa rakaderera.

Diesel engine castings, senge cylinder blocks, cylinder heads, kupinza uye kupera simba pombi, nezvimwewo, mamwe ane maumbirwo akaomarara uye diki diki diki diki-sectional nzvimbo, dzinowanzo pfuti yenhema, kuputsika, nezvimwewo, kana tsinga dzinoonekwa castings nekuda kwekuwedzera kukuru kwesilika jecha.Mukana wekuremara sejecha rinonamira nemapores zvakare wakakwira zvakati.

Sintered-ceramic-jecha-yekuwana-ine-inotonhora-core-bhokisi-(4)
Sintered-ceramic-jecha-yekuwana-ine-inotonhora-core-box-(5)

Uchishandisa jecha receramic kana kusanganisa jecha receramic nejecha resilica muchiyero, huwandu hweresin inowedzerwa inoderedzwa ne20-30%, uye zvikanganiso zviri pamusoro zvakavandudzwa zvakanyanya.Panguva imwecheteyo, iyo jecha core ine yakanaka collapsibility, iyo inoderedza basa rekukanda kuchenesa.Nekuda kweizvozvo, akawanda uye akawanda edhiziri ekukanda madhiri atora ceramic jecha rinotonhora bhokisi tekinoroji.

Ceramic Sand Property

Main Chemical Component Al₂O₃≥53%, Fe₂O₃<4%, TiO₂<3%, SiO₂≤37%
Zviyo Chimiro Spherical
Angular Coefficient ≤1.1
Chikamu Saizi 45μm -2000μm
Refractoriness ≥1800℃
Bulk Density 1.5-1.6 g/cm3
Kuwedzera Kwekupisa (RT-1200℃) 4.5-6.5x10-6/k
Color Jecha
PH 6.6-7.3
Mineralogical Composition Mullite + Corundum
Acid Cost <1 ml/50g
LOI <0.1%

Enzanisa neimwe yakasvibirira jecha bvunzo mhedzisiro yeCold box process

Raw Sand Resin Wedzera. 2h Tensile Simba Gasi Evolution
Sintered Ceramic Sand 1.5% 2.098 MPa 10.34 ml/g
Jecha rakakweshwa 1.5% 1.105MPa 13.4 ml/g
Baked Sand 1.5% 1.088 MPa 12.9 ml/g
Sintered Ceramic Sand+ Yakakweshwa Jecha 1.5% 1.815 MPa 12.5 ml/g
Sintered Ceramic Sand + Yakabikwa jecha 1.5% 1.851 MPa 12.35 ml/g
Chromite Sand+ Yakakweshwa Jecha 1.5% 0.801 MPa 10.85 ml/g
Chromite Sand+ Yakabikwa Jecha 1.5% 0.821 MPa 10.74 ml/g

Enzanisa neCasting defects rate yeCold box process

Raw Sand Veins Core Broken Sinter Choke Total
Sintered Ceramic Sand 0% 2% 0% 0 2%
Jecha rakakweshwa 28% 12% 4% 3% 47%
Baked Sand 24% 10% 3% 2% 39%
Sintered Ceramic Sand+ Yakakweshwa Jecha 12% 4% 1% 2% 19%
Sintered Ceramic Sand + Yakabikwa jecha 7% 3% 2% 2% 14%
Chromite Sand+ Yakakweshwa Jecha 13% 6% 5% 4% 28%
Chromite Sand+ Yakabikwa Jecha 12% 4% 2% 2% 20%

Zvikamu zveParticle size Distribution

Iyo particle size yekugovera inogona kugadzirwa zvinoenderana nezvaunoda.

Mesh

20 30 40 50 70 100 140 200 270 Pan AFS

μm

850 600 425 300 212 150 106 75 53 Pan  
Code 40/70   ≤5 20-30 40-50 15-25 ≤8 ≤1       43±3
70/40   ≤5 15-25 40-50 20-30 ≤10 ≤2       46±3
50/100     ≤5 25-35 35-50 15-25 ≤6 ≤1     50±3
100/50     ≤5 15-25 35-50 25-35 ≤10 ≤1     55±3
70/140       ≤5 25-35 35-50 8-15 ≤5 ≤1   65±4
140/70       ≤5 15-35 35-50 20-25 ≤8 ≤2   70±5
100/200         ≤10 20-35 35-50 15-20 ≤10 ≤2 110±5

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