Check/Reference samples for automatic combustion units for C and S in pig iron and in cast iron
As for all calibrated analysis instruments, it is necessary to have check/reference samples in order to test for serviceability and check accuracy.
Mechanical procesing of grey iron is of course quite easy but, in doing so, uncontrolled carbon may segregate or may even be lost (in the form of dust), so taht the instrument sample may not be of a represantive quality. To produce check/reference samples the iron must therefore be completely white. White iron is very hard and tough, so that almost insuperable problems may be encountered when producing the instrument sample by machining in the form of out chips, as is usual for automaitc combustion units.
The solution is to produce iron which has undergone completely white solidification in the form of powder which has excellent homogeneity.
Working with large German steel manufacturers SUS have produced iron powder with a mean particle size of 300µm. The particle size distribution is:
| µm | % fraction |
| > 500 | < 1 |
| 160 - 500 | 70 |
| 45 - 160 | 28 |
| < 45 | 2 |
pig iron: C(4,428 ± 0,013)% S (0,0512 ± 0,0012)%
Gusseisen: C (3,33 ± 0,02) % S (0,011 ± 0,0006)%
Analysis:
pig iron: Si ≈ 0,5%; Mn ≈ 0,15&; P ≈ 0,05%; Ti 0,05%; V 01,%
Cu, Cr, Ni < 0,05%
Transferring and dispensing can be carried out as manual or automatic operations (robots) without problems.
'The material is supplied in glass bottles containing 1000g, or in 5kg bundles.
If a suitable quantity is taken (min. 100kg) we can process your own special iron.
Let us know your requirements and we shall give you a quotation.
