Catalyst carrier cordierite honeycomb ceramics for DOC Featured Image

Catalyst cab kuj cordierite honeycomb ceramics rau DOC

Nqe lus piav qhia luv:

Ceramic honeycomb substrate (catalyst monolith) yog ib yam tshiab ntawm cov khoom lag luam ceramic, raws li cov khoom siv catalyst uas tau siv dav hauv tsheb tso tawm lub tshuab ua kom huv thiab tsim kho cov pa tawm.

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Catalytic converter substrate rau tsheb:

nws cov khoom tseem ceeb yog tsim los ntawm cordierite thiab cov hlau tsis muaj hlau
Cov khoom siv rau catalytic converter substrate yog cordierite. Lub ntuj cordierite muaj tsawg heev hauv qhov, yog li feem ntau
cordierites yog cov khoom tsim los ntawm tib neeg. Cov yam ntxwv tseem ceeb rau xws li cordierite yog cov cua sov nthuav dav coefficient, cov cua sov zoo
poob siab tsis kam, siab tiv thaiv acid, tiv thaiv alkali thiab anti-yaig muaj nuj nqi thiab cov khoom siv dag zog zoo.
Ib txwm CPSI rau catalytic converter substrate yog 400. Cov duab ntawm cov zib ntab ceramic yog puag ncig, racetrack, ellipse thiab lwm yam
cov duab tshwj xeeb raws li tus neeg siv khoom xav tau txhawm rau ua kom tau raws cov qauv tsheb sib txawv.

Cov khoom ntawm Honeycomb Ceramics

Yam khoom	Chav nyob	Alumina Ceramic	Cordierite ntom	Cordierite	Mullite
Ceev	g/cm3 yog	2.68	2.42	2.16	2.31
Tej Ceev	kg/m3	965	871	778	832
Thermal Expansion Coefficient	10-6/k	6.2	3.5	3.4	6.2
Peev Xwm Thaum Tshav Kub Kub Tshwj Xeeb	j/kg · k	992	942	1016	998
Kev Kub Cuam Tshuam	w/m · k	2.79	1.89	1.63	2.42
Thermal Shock Kuj	Max K. Ib	500	500	600	550
Softening Kub	℃	1500	1320	1400	1580
Kev Pabcuam Kub Tshaj	℃	1400	1200	1300	1480
Peev Xwm Thaum Tshav Kub Kub	w/m · k/m3 · k	0.266	0.228	0.219	0.231
Dej nqus dej	%	≤ 20 ib	≤5	15-20	15-20
Acid Kuj	%	0.2	5.0	16.7	2.5