Gold Melting Graphite Crucible Induction Heating Crucible for Aluminium with Stopper K3

Product Description

Product Description
The silicon carbide graphite crucible is made by adding silicon carbide particles of varying content to the raw material of the graphite crucible. For example, the content is 50%, 24%, and other different content. Of course, it can also be based on the different requirements of customers. Custom-made graphite crucibles with varying amounts of silicon carbide.
Silicon carbide crucible is mainly used in metallurgy, casting, machinery, chemical industry and other industrial sectors, is widely used in alloy tool steel smelting and non-ferrous metal and its alloy melting, and has better technical and economic effects.
> Fast heat conduction: because silicon carbide graphite crucible uses high thermal conductivity of graphite and other raw materials, shorten the melting time, save energy; In addition, the use of high thermal conductivity materials, dense tissue, low apparent porosity, fast thermal conductivity.
> Long life: compared with ordinary clay graphite crucible, the life can be extended by 3-5 times.
> Strong heat resistance impact: graphite crucible heat resistance impact function is strong, for hot and cold, not easy to break; Can withstand the thermal impact strength , so any process can be assured.
> Corrosion resistance: strong corrosion resistance to molten soup; The average fine matrix design delays the corrosion degree of the crucible.
> Anti-adhesion: Because graphite is not easy to adhere to the characteristics of molten soup, so the penetration and adhesion of molten soup is less
> Metal pollution is very little: strict control of material composition, to ensure that the graphite crucible is not polluted to metal when dissolving; The material design takes into account the relationship with the metal to be smelted and the characteristics of the process, and introduces little or no harmful impurities.
> Energy conservation and environment protection:Fast heat conduction can save a lot of fuel and reduce exhaust pollution.
> High strength: selection of high-quality materials, high pressure pressing, combined with fair, high temperature strength, scientific product modeling, high pressure capacity. Good anti-cracking function. So it maintains the original physical and chemical properties of natural graphite.
> Oxidation resistance: antioxidant design, and the use of high purity raw materials, protect graphite; High oxidation resistance is 5-10 times of ordinary graphite crucible.
> Less viscous slag: less slag hanging on the inner wall, greatly reduce the thermal resistance and the possibility of expansion and cracking of the crucible, always maintain large capacity.
Physical Properties

Apparenrt Porosity	9-12 %
Modulus of Rupture	8-12 Mpa
Thermal Expansion Coefficient	3.0-4.5 (10-6 K-1)
Special Electrical Resistance	3.5-4.5*10-3 Ω.CM (24ºC)
	3.0-4.0*10-3 Ω.CM (800ºC)
Thermal Conductivity	140-150 W/(m*k) (25ºC)
	40-50 W/(m*k) (800ºC)

Chemical Analysis

C (free C)	37-42%
SiC (silicon carbide)	35-40%

> Prefabrication: The crucible prefabrication is braided with all carbon fiber, and the volume density of the crucible prefabrication is 0.4-0.6g/cm3. > Curing: curing the crucible preform with furfuryl ketone resin. > Density: Bitumen is repeatedly impregnated with carbonized dense crucible precast until the volume density of the crucible precast reaches 1.3g/cm3-1.4g/cm3. > Purification: Put the prefabricated crucible into the high temperature furnace after purification, the shape is trimmed to make the carbon crucible blank. > Silicon immersion: Put the carbon crucible blank into the silicon immersion agent for 12-24h naturally. > Carbonization: the soaked carbon crucible blank into the carbonization furnace carbonization, carbonization temperature of 900-1000ºC. > Repeat steps 5 and 6 until the carbon crucible blank density reaches 1.5-1.6g/cm3. > Forming: grinding and polishing the internal and external surface of the crucible, that is, silicon carbide composite crucible products.

Number	model	OD	H	ID	BD
1	100	350	440	282	240
3	110	330	380	260	205
4	200A	420	480
5	200	420	500	350	230
6	203	420	570	364	230
8	351	430	670	360	230
9	300	450	500	360	230
11	ZD350H620	465	620	390	320
12	A350	470	650	390	320
14	370	530	570	460	300
15	400	530	750	446	330
16	450	520	600	440	260
17	453	520	660	450	310
18	460	565	600	500	310
19	463	570	620	500	310
20	501	520	700	460	310
21	505	520	780	460	310
22	508	510	700	430	300
23	511	550	660	460	320
24	650	550	800	480	330
25	700	600	500	550	295
26	760	615	620	550	295
27	765	615	640	540	330
28	790	640	650	550	330
29	791	645	650	550	315
30	801	610	675	525	330
31	802	610	700	525	330
32	803	610	800	535	330
33	810	620	830	540	330
34	820	700	520	597	280
35	910	710	600	610	300
36	1000	715	680	610	300
37	1050	715	720	620	300
38	1200	715	740	620	300
39	1300	715	800	640	440
41	1510	740	900	640	360
42	1502
44	1560	775	750	684	320
45	1650	775	810	685	440
	1800	780	900
49	1950	830	750	735	440
50	2001	870	680	765	440
51	2095	830	900	745	440
52	2096	880	750	780	440
53	2250	880	880	780	440
54	2300	880	1000	790	440
55	2700	900	1150	800	440
56	3000	1030	830	920	500
	3300	970	880
57	3500	1035	950	925	500
58	4000	1035	1050	925	500
60	5000	1040	1320	930	500
61	U700	785	520		420
62	U950	837	540	547	460
63	U1000	980	570	560	480
64	U1160	950	520	610	520
65	U1240	840	670	548	460
66	U1580	842	780	548	463
67	U1720	975	640	735	640
	U2100
68	U2110	1080	700	595	495
69	U2300	1280	535	680	580
71	U2500	1280	650	680	580
73	U2690	1065	785	835	728
74	U2760	1290	690	690	580
75	U4750	1080	1250	850	740
76	U5000	1340	800	995	874
77	U6000	1355	1040	1005	880
78	IND205	330	505	280	320
79	IND285	410	650	340	392
80	IND300	400	600	325	390
81	IND480	480	620	400	480
82	IND540	420	810	340	410
83	IND905	650	650	565	650
84	IND906	625	650	535	625
85	IND980	615	1000	480	615
86	IND900	520	900	428	520
87	IND990	520	1100	430	520
90	IND1200	630	900	530	630
91	IND1250	650	1100	565	650
92	IND1400	710	720	622	710
94	IND5600	980	1700	860	965
95	Z803	620	800	536	355
96	Z1800	780	900	680	440
97	Z2300	880	1000	780	330

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Packaging & Shipping The smelt soup in the crucible should be cleared out when the furnace stop working, in order to avoid molten soup solidification and will be expanded when fire to reheat, and affect the service life of crucible or even burst.The graphite crucible should be protected from moisture. The warehouse for storing graphite crucibles should be dry and ventilated, and the temperature should be kept between 5ºC~25ºC, and the relative humidity should be 50-60%. The crucible must not be stored on brick soil or cement floor to avoid moisture.
In order to protect the glaze layer of the crucible, handling crucible must be very careful, to avoid knocking, collision or falling, we can't put the crucible on the ground and rolling to transport. Once the glaze layer of crucible is damaged, it will lead to oxidation and aging of crucible easily in the process of use. The crucible should be handled carefully in a padded cart (or other suitable conveyer).Our company use rope, rubber, moisture-proof plastic paper, shockproof to pack the crucible, and according to customers' needs, we can customize wooden cases, export packaging cartons, paper tubes, etc., to ensure that the crucible wouldn't be damaged in transit.
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