High Temperature Refractory Crucibles for Melting Gold

• Customization: Available
• Type: Graphite Crucible
• Product Name: Graphite Crucible
• Model NO.: DK-gcg
• Density: 1.65-1.80 g/cm3
• Color: Black
• Size: Made as Your Need
• Carbon Content: Medium-Carbon
• Grade: Industrial Grade
• Forming Way: Molded Graphite
• Composition: Carbon
• Transport Package: Wooden Case
• Specification: As per your request
• Trademark: DKJL
• Origin: Hebei China
• HS Code: 69031000
• Production Capacity: 5000PCS Per Month

Product Description

High temperature refractory crucibles for melting gold
 

Product Description

Graphite crucible is a utensil or melting tank vessels which use graphite powder and clay as main raw material, made through pressing in different molds (according to different needs) and firing process.

 

Advantages:

1. High strength (Flexural strength: 30Mpa Compressive strength: 55Mpa with rising of temperature, graphite strength increases)
2. High temperature resistance (graphite material melting point is 3850±50C)
3. Good heat shock resistance
4. Anti-oxidation, 
5. Strong corrosion resistance to acid and alkali liquid 
6. Abrasion resistance,
7. Good conductivity and thermal efficiency.
8. Excellent chemical stability 
9. Small thermal expansion coefficient.
10. Easy to clean

Application:

Graphite crucible, with its special advantages and Plasticity, is widely used in the smelting area, e.g. gold smelting, silver smelting, aluminum smelting, and cooper smelting in metallurgy, casting, machinery, chemical and other industries.

 

Operating Notice:

1. The crucible should be stocked in the dry situation.
2. Carry the crucible carefully
3. Warm the crucible in the drying machine or near the furnace. The warming temperature should be up to 500ºC.
4. The crucible should be put under the furnace mouth flat.
5. 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.
6. The clamps shape need as that of crucible. Avoid the concentrate stressed destroy of the crucible.
7. Clean the crucible regularly and gently.
8. The crucible should be put in the center of the furnace and leave some distance between the crucible and furnace.
9. Turn the crucible once a week and this will help prolong the service life.
10. The flame should not touch the crucible directlye.

Technical Index

 

Standard parameter		Test result
refractoriness≥	1630ºC	refractoriness≥	1635ºC
Carbon content≥	38%	Carbon content≥	41.46%
apparent porosity≤	35%	apparent porosity≤	32%
bulk density≥	1.6g/cm3	bulk density≥	1.71g/cm3

 

Physical properties

Specifications	Unit	Value
Bulk Density	g/cm3	1.65-1.80
Compressive Strength *	MPa	20-55
Bending Strength *	MPa	10-30
Elastic Modulus *	GPa	9-21
Specific Resistance *	u.Ω.m	5.0-15.0
Ash	%	0.05-0.5

 

Specifications

Specifications	Top outer diameter	height
1#	70	78
2#	87	108
3#	102	120
4#	112	131
5#	121	141
6#	121	154
8#	137	169
10#	148	186
12#	156	192
16#	164	212
20#	183	232
25#	196	250
30#	208	269
40#	239	292
50#	257	314
60#	270	327
70#	280	360
80#	296	336
100#	321	379
120#	345	388
150#	362	429
200#	395	483
250#	430	557
300#	455	610
400#	526	661
500#	531	713
600#	580	600
750#	600	650
800#	610	730
1000#	620	800
1500#	720	800
2500#	875	1000

Packaging&Shipping

Package: wooden case. 

We also provide OEM service; the package can be designed according to your requirements.

Shipping: By vessel or by train from any Chinese port, Samples can be delivered by International express.

Our Service

1. Timely response, 

Timely response to your inquiry, multiple choice recommendations based on your demand, quickly respond mails and provide solutions.

 

2.Sample evaluation

Sample and trial order is accepted for the quality evaluation.

 

3. Strict quality control

Arrange production on time and control quality strictly.

 

4. Shorter delivery time.

Book the earliest vessel or plane to guarantee the delivery time.

 

5. Professional Services

Provide all the detailed news and pictures from order to delivery;

Offer relative export documents and original certificate if needed;

Warm and considerable after-sale service 




 

Company Information

DKJL refractories exporting company is one of the most professional suppliers of refractories in China. Our main products are refractory and thermal insulation materials, heating elements, industrial ceramics. They are available in various sizes and shapes. Our products enjoy a good reputation for their excellent quality and service in domestic and international markets.

 

FAQ

1. How can I get your prompt quotation?

A: we can give you reply with quotation quickly if you kindly send the inquiry with following factors: top diameter, bottom diameter, thickness, height, application and quantity. 

 

2.What's the MOQ of the order?
No limit, we can offer the best suggestions and solutions according to your condition.

 

3. Which payment terms can you accept?
T/T,LC,Western Union,moneygram are available for us.

 

4. After an order is placed, when to deliver?
15-25days after confirming the order.

5. Does your company accept customization?
We accept OEM service.

6. How to solve the quality problems?
If the products don't conform to customer's samples or have quality problems, our company will be responsible for it.

 

7. What is the HS code?

The HS code is 69031000