Specifications

Jewelry graphite crucibles
1.Material:high pure graphite
2.Used for melting
3.Long time

Graphite melting crucible

 

1.Introduction

The material of graphite crucible  can be divided into artificial graphite,clay bonded graphite, and carbon bonded graphite.Artificial graphite crucible is made of graphite electrode as material and made out.

Clay bonded graphite, the main ingredient is natural crystal graphite and clay Now only used in small amount of high-temperature melting of cast iron, cast steel melting and melting of precious metals.

Carbon bonded graphite, the main ingredient is natural crystal graphite and silicon carbide. Mainly used in  the melting of  the majority of non-ferrous metals such as copper alloy and aluminum alloy 

 

2.Property

 

a. High thermal conductivity

b.Thermal shock resistance

c.High temperature resistance

d.Corrosion resistance

d. Mechanical shocks resistance

d. Oxidation resistance

e. Anti-adhesive

f. Small metal contamination 

g. Good clearner

 

3. Shapes

standard type,long type,bowl type,lip type, electric furnace type

 

4.Purpose

melting of copper alloy and light metal alloy

 

5.Index

Standard parameter		Testing data
Refractoriness ≥	1630°C	Refractoriness≥	1635°C
Carbon connent ≥	38%	Carbon connent≥	41.46%
Apparent porosity ≤	35%	Apparent porosity ≤	32%
Bulk density ≥	1.6g/cm3	Bulk density ≥	1.71g/cm3

 

Specification	OD at top	Outer Height	OD at bottom
1000#	640	773	380
800#	630	720	335
500#	540	698	313
400#	520	648	282
350#	485	610	275
300#	470	573	240
250#	450	550	240
200#	398	490	220
150#	370	430	192