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Laboratory Ceramic Products :
COMBUSTION BOATS
Hitemp Combustion Boats are used in the estimation of carbon in
steel samples. The sample of steel drilling is taken in a combustion boat and placed
inside a tube furnace maintained at 1300 deg to 1400 deg & oxygen is passed over it
which combines with carbon of the steel & CO2 is estimated. Propirties of combustion
Boats are High thermal shock resistance, High softening temperature & high
resistance to corrosive action to molten steel. Combustion boats are made either by
slip casting in plaster of paris moulds or by mechanical pressing.
| Combustion Bots Size( mm) |
75 x 12 x9 |
85 x 13 x 9 |
88 x 13 x 10 |
95 x 13 x 10 |
100 x 16 x 12 |
100 x 18 x 13 |
COMBUSTION TUBES
Hitemp Combustion tubes are used in the Strohline apparatus for
carbon & sulphur estimanition . Combustion boat carriying sample of steel is pushed
in this tube .one end of Combustion tube is connected to the strohline appatatus &
the other end is connected to the oxygen cylinder through a rubber tubing.
Essential Properties of combustion tubes are High thermal shock resistance, High
softening temperature & highly impervious.Combustion Tubesare made either by slip
casting in plaster of paris moulds or by extrution.
| Combustion Tubes Size( mm) |
22 x 17 x 500 |
22 x 17 x 600 |
22 x 17 x 700 |
24 x 18 x 500 |
24 x 18 x 600 |
24 x 18 x 700 |
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26 x 20 x 500 |
26 x 20 x 600 |
26 x 20 x 700 |
29 x 22 x 600 |
29 x 22 x 700 |
29 x 22 x 750 |
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32 x 25 x 600 |
32 x 25 x 700 |
32 x 25 x 750 |
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MUFFLE TUBE & END CAP
Hitemp Muffle tube is an integral part of combustion
furnace used in strohline apparatus. Two end caps are fitted on each side of muffle
tube for holding the SIC Heating elements & Combustion tube. There is a centre hole
in muffle tube to insert thermocouple. Muffle tubes are made either by slip casting
in plaster of paris moulds or by extrution. Where as End caps are made by die
pressing. End caps are available with 3 & 4 holes.
LECO CRUCIBLES
Leco Crucibles are used in the estimation of carbon in steel
samples. The sample of steel is taken in a leco crucible and placed inside the leco
apparatus. Propirties of Leco crucilbles are High thermal shock resistance, High
softening temperature & high resistance to corrosive action to molten steel. Leco
crucible are made by mechanical pressing.
SILLIMANITE & ALUMINA CRUCIBLES
Crucibles are fabricated by slip casting
method .They are highly refractory to withstand desired temperatures ,They posses
have high thermal shock resistance. These are highly dense to ensure no loss of
contents by absorption & are highly resistant to corrosive action of the
contents.Used is Laboratories for Chemical Analysis & melting of glass & metals in
industries. Alumina crucibles are used for coal analysis & melting rare metals &
high melting point alloys. Alumina crucibles are highly resistant to acid & basic
slag.
Some Standard Sizes of Crucibles : Grade - 99.5% Al2O3
Cylindrical |
OD (mm) |
ID
(mm) |
Height (mm) |
Vol
(ml) |
20 |
16 |
30 |
05 |
30 |
26 |
40 |
15 |
35 |
30 |
50 |
30 |
40 |
36 |
60 |
60 |
50 |
44 |
75 |
120 |
65 |
55 |
100 |
240 |
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Conical Short Form |
Upper OD (mm) |
LowerID (mm) |
Height (mm) |
Vol (ml) |
30 |
174 |
24 |
10 |
41 |
18 |
37 |
25 |
48 |
20 |
41 |
40 |
54 |
24 |
50 |
60 |
60 |
26 |
50 |
80 |
66 |
30 |
56 |
100 |
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Conical Tall Form |
Upper
OD (mm) |
Lower
ID (mm) |
Height (mm) |
Vol (ml) |
25 |
15 |
30 |
10 |
30 |
18 |
38 |
15 |
33 |
18 |
40 |
20 |
38 |
21 |
47 |
30 |
42 |
25 |
54 |
45 |
50 |
24 |
65 |
80 |
62 |
32 |
75 |
100 |
73 |
35 |
90 |
150 |
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Laboratory Ceramic Products
