Iipropati ze-Iron Magnetic eziNgwevu

Ukuthelekisa i-Iron eGrey				I-Microstructure (amaqhezu oMqulu) ((())
China (GB/T 9439)	ISO 185	I-ASTM A48/A48M	EN 1561	Ulwakhiwo lweMatrix
I-HT100 (HT10-26)	100	No.20 F11401	EN-GJL-100	I-Pearlite: 30-70％, iiflakes ezinqabileyo; IFerrite: 30-70％; I-Binary Phosphorus Eutectic: ＜7％
I-HT150 (HT15-33)	150	No.25A F11701	EN-GJL-150	I-Pearlite: 40-90％, iiflakes eziphakathi; Ferrite: 10-60％; I-Binary Phosphorus Eutectic:＜7％
I-HT200 (HT20-40)	200	No.30A F12101	EN-GJL-200	iPearlite: ＞95％, iiflakes eziphakathi; Ferrite＜5％; I-Binary Phosphorus Eutectic (4)
I-HT250 (HT25-47)	250	No.35A F12401 No.40A F12801	EN-GJL-250	iPearlite: ＞98％ iiflakes ezibhityileyo eziphakathi; I-Binary Phosphorus Eutectic:＜2％
I-HT300 (HT30-54)	300	No.45A F13301	EN-GJL-300	iPearlite: ＞98％ iiflakes ezibhityileyo eziphakathi; I-Binary Phosphorus Eutectic:＜2％
I-HT350 (HT35-61)	350	No.50A F13501	EN-GJL-350	iPearlite: ＞98％ iiflakes ezibhityileyo eziphakathi; I-Binary Phosphorus Eutectic:＜1％

 

Iipropathi zemagneti zentsimbi engwevu ziyahluka ngokubanzi, ukusuka ekungeneni okuphantsi kunye namandla aphezulu okunyanzeliswa ukuya ekungeneni okuphezulu kunye namandla aphantsi okunyanzeliswa. Olu tshintsho luxhomekeke ikakhulu kwi-microstructure ye-grey cast iron. Ukongeza izinto zokudibanisa ukufumana iipropati ezifunekayo zamagnetic zifezekiswa ngokutshintsha isakhiwo se-grey cast iron.

I-Ferrite ine-permeability ephezulu yamagnetic kunye nelahleko ephantsi ye-hysteresis; i-pearlite ichasene nje, inomlinganiselo ophantsi wamagnetic kunye nokulahleka okukhulu kwe-hysteresis. IPearlite yenziwe ibe yi-ferrite ngonyango lobushushu olunokonyusa, olunokunyusa ukufikeleleka kwamagnetic amaxesha amane. Ukwandisa iinkozo ze-ferrite kunokunciphisa ilahleko ye-hysteresis. Ubukho be-cementite buya kunciphisa ubuninzi be-magnetic flux, ukunyanzeliswa kunye nokuhlala, ngelixa ukwandisa ukunyanzeliswa kunye nokulahlekelwa kwe-hysteresis. Ubukho begraphite erhabaxa buya kunciphisa ukushiyeka. Utshintsho ukusuka kuhlobo lwegraphite ye-A (igraphite emile okweflake esasazwa ngokufanayo ngaphandle kolwalathiso) ukuya kwigraphite yohlobo lwe-D (igraphite egobileyo egobileyo enosasazo olungeyo-directional phakathi kwedendrites) inokunyusa kakhulu ukufakwa kwamagnetic kunye namandla okunyanzela. .

Phambi kokufikelela kubushushu obubalulekileyo obungeyomagnetic, ukunyuka kweqondo lobushushu kwandisa kakhulu ukufikeleleka kwemagnethi yentsimbi engwevu. Indawo yeCurie yentsimbi ecocekileyo yi-α-γ yokutshintsha kweqondo lobushushu le-770°C. Xa ipesenti yobunzima besilicon yi-5%, indawo yeCurie iya kufikelela kuma-730 ° C. Ubushushu bendawo yeCurie yesamente ngaphandle kwesilicon yi205-220°C.

Ubume be-matrix bemigangatho esetyenziswa ngokuqhelekileyo yentsimbi engwevu i-pearlite, kwaye ukugqithiswa kwabo okuphezulu kuphakathi kwe-309-400 μH / m.

 

IiPropati zeMagnetic zeGrey Cast Iron
Ikhowudi ye-iron engwevu	Ukwakheka kwemichiza (%)
	C	Si	Mn	S	P	Ni	Cr
A	3.12	2.22	0.67	0.067	0.13	＜0.03	0.04
B	3.30	2.04	0.52	0.065	1.03	0.34	0.25
C	3.34	0.83 - 0.91	0.20 - 0.33	0.021 - 0.038	0.025 - 0.048	0.04	＜0.02
Iimpawu zeMagnetic		A		B		C
		IPearlite	Ferrite	IPearlite	Ferrite	IPearlite	Ferrite
Carbide Carbon w(%)		0.70	0.06	0.77	0.11	0.88	/
Remanence / T		0.413	0.435	0.492	0.439	0.5215	0.6185
Ukunyanzeliswa kwamandla / A•m-1		557	199	716	279	637	199
Ilahleko yeHysteresis / J•m-3•Hz-1 (B=1T)		2696	-696	2729	1193	2645	938
Amandla ommandla wemagnethi / kA•m-1 (B=1T)		15.9	-5.9	8.7	8.0	6.2	4.4
Max. IMagnetic Permeability / μH•m-1		396	1960	353	955	400	1703
IMagnetic Field Amandla xa Max. IMagnetic Permeability / A•m-1		637	199	1035	318	1114	239
Ukuxhathisa / μΩ•m		0.73	0.71	0.77	0.75	0.42	0.37

 

Apha koku kulandelayo ziimpawu zoomatshini zentsimbi engwevu:

IiPropati zeMechanical zeGrey Cast Iron
Into ngokwe-DIN EN 1561	Umlinganiselo	Iyunithi	EN-GJL-150	EN-GJL-200	EN-GJL-250	EN-GJL-300	EN-GJL-350
			EN-JL 1020	EN-JL 1030	EN-JL 1040	EN-JL 1050	EN-JL 1060
Tensile strength	Rm	IMPA	150-250	200-300	250-350	300-400	350-450
0.1% Amandla eSivuno	Rp0,1	IMPA	98-165	130-195	165-228	195-260	228-285
Amandla okwandisa	A	%	0,3 – 0,8	0,3 – 0,8	0,3 – 0,8	0,3 – 0,8	0,3 – 0,8
Amandla acinezelayo	σdB	MPa	600	720	840	960	1080
0,1% Amandla oxinzelelo	σd0,1	MPa	195	260	325	390	455
Amandla e-Flexural	σbB	MPa	250	290	340	390	490
Schuifspanning	σaB	MPa	170	230	290	345	400
Phungula ucinzelelo	TtB	MPa	170	230	290	345	400
Iimodyuli zokunwebeka	E	GPA	78 – 103	88 – 113	103 – 118	108 – 137	123 – 143
Inombolo yePoisson	v	-	0,26	0,26	0,26	0,26	0,26
Ukuqina kweBrinell		HB	160-190	180 – 220	190 – 230	200 - 240	210 – 250
I-Ductility	σbW	MPa	70	90	120	140	145
Uxinzelelo kunye nokutshintsha koxinzelelo	σzdW	MPa	40	50	60	75	85
Ukuqhawula Amandla	Klc	N/mm3/2	320	400	480	560	650
Ukuxinana		g/cm3	7,10	7,15	7,20	7,25	7,30