UPMSP Intermediate Metal Craft: Moulding in Ferrous Metals case studies
UPMSP Intermediate Metal Craft: Moulding in Ferrous Metals · Put your knowledge to work in context.
The Intermediate Metal Craft subject with the Moulding in Ferrous Metals module is a vocational qualification in the Uttar Pradesh senior secondary stream, examined by the Board of High School and Intermediate Education, Uttar Pradesh (UPMSP). It suits students who want a recognised school-level credential in foundry work rather than a purely academic science stream, and it is also useful for apprentices and workshop helpers who already handle sand, moulds and molten iron and want their skills documented. The UPMSP Intermediate Metal Craft: Moulding in Ferrous Metals case studies are 5 cases and about 4,263 words.
1Green sand system out of balance: diagnosis from the sand laboratory sheet
At a jobbing foundry casting 2–8 kg grey iron valve bodies in green sand, the sand plant mixes 1 000 kg batches of silica sand (AFS 55), bentonite, water and a little sea-coal. Over three weeks the rejection rate for blows and rough surface rose from 3% to 11%.
829 words, about 4 min2Why an 'equal modulus' riser failed: modulus, feeding distance and yield on a steel bracket
A steel foundry is making brackets in 0.30% carbon steel poured at 1580 °C into green sand moulds. The ruling section is a flat plate 200 mm long × 150 mm wide × 40 mm thick, fed in the length direction from one end.
834 words, about 4 min3Sorting gas holes from shrinkage in grey iron impellers
A foundry casts 6 kg grey iron impellers (CE 3.9) in green sand, with a 40 mm diameter hub, 12 mm blades, and a linseed-oil-bonded sand core forming a 30 mm bore. After shot blasting and machining, 14% of one week's impellers show internal cavities.
846 words, about 4 min4The pour that should have been stopped: wet floor, wet ladle, dead extractor
In a foundry pouring grey iron from a 500 kg induction furnace, a 90 kg mould was closed at 09:00 and is due to be poured at 15:00. The mould is 400 × 400 × 250 mm in green sand at 6.5% moisture, with a linseed-oil-bonded core that has been stored uncovered.
902 words, about 5 min5Pattern and core box dimensions for a machined cast iron bush
A pattern shop receives an order for 200 grey iron bushes. The finished drawing gives outside diameter 160 mm, bore 90 mm and length 150 mm.
852 words, about 4 min