T1 Test to check molten metal flow and trial production
Metalmold temperature approximately 95°C
Temperatureduring pouring about 1010°C
Evaluationwas not performed because the material is commonly used.
T2 Teeter mold test
Result: good It can be used for Permanent mold casting
Thesurface of the internal shrinkage had slight unevenness but was relativelysmooth.
Incolor check at the deepest part of the shrinkage, a small amount of roughtexture was observed. (It is within the range with no problem. )
Usually,this result is considered good, and Permanent mold casting is possible without anyproblems.
T3 Confirmation of mechanical properties
Tensilestrength: 351 N/mm2 Degreeof elongation: 28%
Standards of common brass material and bronze were met sufficiently.
T4 Analysis and confirmation of molten metal components
| Cu | Sn | Pb | Zn | Al | Cd | ||
|---|---|---|---|---|---|---|---|
| 1. | Standard value | 58.0-64.0 | 0.3Max | 1.5-2.5 | REM | 0.5-0.7 | |
| 2. | Purchased materials | 59.55 | 0.05 | 1.87 | 37.91 | 0.601 | 9ppm |
| 3. | Before melting | 59.2 | 0.04 | 1.64 | 38.25 | 0.73 | 10ppm |
| 4. | At the time of test production | 59.5 | 0.1 | 1.63 | 37.87 | 0.65 | 10ppm |
T5 Confirming processability
Processability is good.
T6 Evaluation of pressure resistance of trial production
Evaluationwas not performed because the material is commonly used.
Results and evaluation
Evaluationwas not performed because the material is commonly used.