Melting Cylindrical Graphite Pot 10kg ~500kg 600kg~1000kg Silicon Carbide Graphite Crucible for Copper/ Brass/ Aluminum/ Zinc Oxide Smelting and Casting Carbon

• Customization: Available
• Feature: Corrosion Resistance, High-Thermal Conductivity, Thermal Shock Resistance
• Manufacturing Technique: Isostatic Pressing
• Model NO.: 10kg ~6000kg
• Type: Natural Graphite
• Certification: ISO
• Shape: Can Be Customized According to Your Requirements
• Refractoriness: 1580< Refractoriness< 1770
• Chemical Content: C: 37-42% Sic: 35-40%
• Stock: Should Be Stocked in The Dry Situation
• Transport Package: International Export Packing
• Specification: 10kg ~50kg 100kg~1000kg
• Trademark: TTWY
• Origin: Qingdao, China
• HS Code: 6903900000
• Production Capacity: 100000pieces/Month

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 graphite 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.

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%

Melting  Metal:

> Copper
> Brass
> Aluminum 
> Zinc-oxide
...

Product Parameters

> 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.

> 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.
 

 

Model	D/mm	H/mm	d	Copper melting / kg	Aluminum Melting / kg
10	130	170	128	8
8	135	120	135
11	198	130	116	10
35	225	200	160	20-30
34	200	255	130	30-40
110	330	390	185	100	50
150	395	420	215	200	60
200	400	505	215	260	80
310	454	500	270	300-350	100-150
210	450	500	210
300	451	495	260
320	460	590	270
410	475	630	270	400-450
350	462	620	270
315	460	580	329
450	480	670	270
400	501	600	268	450
293	510	520	260		150-200
420	515	673	330	500-600
480	508	670	268
365	530	530	280
490	530	600	325
451	515	610	280
500	520	700	268
370	530	570	280
700	605	505	290	600
353	600	450	280
501	520	740	268
510	540	650	325	650	200
511	550	660	325
505	530	780	268
530	550	810	255
605	540	740	280
462	580	620	310	700
610	550	790	375	700-750	200-250
780	596	620	260
460	585	600	320
463	580	620	320
601	550	810	375
620	550	810	280	800
835	635	552	302
765H	620	635	290		250-300
820	715	530	300	850
801	600	680	260
765	615	635	290
802-b	610	700	330	900
802	610	700	330
841	650	650	300	950-1000	300
840	650	650	302
911	710	600	290
803-b	617	800	330
803	620	800	330
810	622	865	330
810X	620	860	330
910	710	600	290	1000
1020	711	660	300		350
1100	658	820	280
1100-B	658	820	280
1000	710	690	285
810-b	622	865	330
1030	715	680	300	1200-1400
1480	775	635	360		400
1200	730	740	300
1050	725	718	300
1220	720	760	300
850	800	550	420
1551(H)	780	750	360	1500	500
1540	766	748	403
1280	724	800	330
1651	775	800	320
1300	725	820	330	1500	500
1500	748	905	295	1600-2000
1500-B-40	725	905	310
1650	775	800	390
1550	780	750	410
1701	880	680	340		550
1950	826	750	350
1800H	795	895	320		600
1700	875	685	350
1800X	785	900	390
1800	780	900	390
1800XB	795	895	390
1901	880	755	340
1900	871	750	340	2000-2500
5000(650)	1024	650	500		700
2251	885	875	340
2250	880	880	340		800
2300	870	1000	355
5000(830)	1038	830	500	3000-3500
2500	901	1133	350		1000
5000(850)	1038	850	500
3300	970	880	735
2700	911	1165	350
5000(890)	1039	890	500
5000(900)	1040	900	500
5000(1050)	1035	1050	500	4000-4500
5000(1000)	1040	1000	500
5000(1200)	1042	1200	500		1500-2000
5000(1320)	1050	1320	500	5000-5500

 

Production Process

> 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.

Use and Storage Method

>  The crucible should be stocked in the dry situation.

> Carry the crucible lightly.

>  Warm the crucible in the drying machine or near the furnace. The warming temperature should be up to 500ºC.

>  The crucible should be put under the furnace month flat.

>  When put the metal into the crucible, you should take the crucible capacity as your reference. If the crucible is too full, it will be damaged by expansion.

>  The clamps shape need as that of crucible. Avoid the concentrate stressed destroy of the crucible.

> Clean the crucible regularly and lightly.

>  The crucible should be put in the center of the furnace and leave some distance between the crucible and furnace.

>  Turn the crucible once in one week and this way can keep  the service life.

>  The flame should not touch the crucible directly.

>  24 hours constant use will make crucibles have longer service life.

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.

Packaging & Shipping

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.

 

Company Profile

Qingdao TTWY Manufacturing Co.,Ltd is a company specialized in producing casting equipment, especially in graphite products, for expamle, the graphite electrode and graphite crucible. It is located in Qingdao,a beautiful harbor city,which is convenient in transportation.

With high quality,reasonable price and attentive service the products produced by TTWY have wined trust from clients at home and aboard.

FAQ

Q: What information should I let you know if I want to get a quotation?
A: The required material dimension (Thickness*Width*Length,diameter*length; if possible, please kindly provide us drawings).

The required more information, such as Surface Condition, Tolerance Request, the Quantity, and other mechanical and technical details.
     
If it is possible, please also provide the application of products, then we will recommend the most suitable products with details for confirmation.
 
Q: How do you gurantee the quality of the products?
A: Each step of production and finished products will be carried out inspection by QC department before storing in the warehouse. NG goods are not allowed in the completed goods warehouse.
 
Q: Can you guarantee the prompt delivery?
A: Yes, when we get your inquiries, we will not only evaluate the more competitive price, but also we can get the most reasonable delivery time. So the prompt delivery can be guaranteed.

Q: What is your lead time? 
A : It usually need about 15- 20 days after receiving the PO. 

Q : What is your payments terms?
A : We can accept 30% deposit, 70% balance to be against the BL copy or by LC, or other payment terms.(according to your order value)

Q : Can we visit your company?
A : Yes, for sure. It's my pleasure.

Q: What is the shipping cost?
A: The shipping cost is determined by the destination port, weight, packing size, total CBM of the products, we will try the best to get the most reasonable shipping cost from the forwarders or express couriers to help you save more money.

Q:What is the transportation way?
A:If the Gross Weight ≤45kg, it's better by express such as TNT, DHL, FedEx,, etc. 
If the Gross Weight between 45kg to 100kg, by express or by air to your nearest airport can be both considered.
If the Gross Weight ≥ 100kg ,you can choose by Air or Sea to the nearest port.

Q:What service you can offer to your clients? 
A:We provide presales service in various forms, for example, making investment budgg, so that customer make a reasonable plan with less cost. Moreover,we will also provide after sale service ,for example,free training about machine applications ect.