HT high purty SIC graphite crucible/graphite crucible for melting furnace

Product Overview

Description

HT-Clay graphite crucible/SIC crucibles

Features of silicon carbide crucible: 

  a)Excellent Thermal Shock Characteristics 
  b)Corrosion Resistance 
  c)As Cast Tight Dimensional Tolerances 
  d)High Creep Resistance 
  e)Superior Wear Resistance 
  f)Maximum Use Temperature to 1600 °C

 g)High temperature tolerance, high thermal conductivity, low coefficient of thermal expansion, oxidation resistance, thermal shock resistance, long application life.

 

Benefits: 
  a)Superior Oxidation Resistance 
  b)Improved Performance 
  c)Lowered Cost Burden 
  d)Longer Life Between Replacement/Rebuilds 
  e)Allows Lower Weight 
  f)Very High Thermal Conductivity

1.Thermal stability: We make special design to assure the quality accordig to the instant temperature changing working condition.

2.Corrosion resistance: Precise design extends the ability of corrision resistance of the crucible.

3.Impulsion resistance: Duratight graphite crucible can stand very strong heat impulsion, so it can be freely used in any technic process. 

4.Acid resistance: Impregnation of special stuff can improve the quality of the crucible and its outstand in the acid resistance. As a result, it can prolong the work life of the graphite crucible.

5.Fine thermal conductivity: High content of fixed carbon ensures the good thermal conductivity, shorten the dissolving time and lower the cost of the oil and other energy obviously. 

6.Control of metallic pollution : Strict control of the contents assures that there is no pollution to the metal during dissolving. 

 

Chemical Composition of sta silicon crucibles

C %	SiC%	AL2O3 %	SIO2%
45%-50%	20%-30%	10%-12%	15-25%

The specification of sta silicon crucibles:

Content of C	≥ 45
Density(g/cm3)	≥ 1.85
Apparent porosity (%)	≤ 21
pressive strength(Mpa)	≥ 25
refractability	≥ 1400C(melting alumina) ≥ 1550C(melting copper)
rupture strength(Mpa)	9-12
diathermancy	3.0-3.7×10-6/C
C	45-50%
Sic	20-30%
Sio2	15-25%
Si	3-8%
A12O3	10-12%

Common size:

Size	Height (mm)	Upper diameter (mm)	Bottom diameter (mm)
2	114	95	66
6	176	137	88
8	188	159	108
10	201	167	113
12	214	175	118
16	232	188	127
18	246	195	132
20	260	201	137
25	285	214	146
30	295	222	153
35	305	230	159
40	315	242	165
50	314	253	178
60	356	282	190
80	387	306	210
100	400	330	232
120	444	340	238
150	461	370	259
200	501	408	279