Silica sol casting
Always investment casting process classified in 2 types, one we called here is an American style silica sol process with green wax (median-temperature wax) and better sand, with very smooth surface, tight tolerance, suitable for small part making widely used in stainless steel and even carbon steel. It is different with another kinds of investment casting process actually called soluble glass process with white wax (low-temperature wax ) and rough sand with relative rough surface, bigger tolerance, suitable for large part making more than 1.00KGS especially for carbon steel, alloy steel.
Silica sol casting process is worked in a special designed workshop, with strict material, Temp., processes controlling, and offers the best quality castings in surface finishing, tolerance and in purity of alloy grade, it is the most expensive of all casting processes too. Stainless steel investment castings ( widely used material: ASTM 304 and ASTM 316¡¡ ) are primarily used for corrosion resistance, abrasion resistance and they typically do not require any plating and additional machining operations, this allows the customers to have very little waste of raw material and reducing overall costs
We can make all possible castings according to customer's requirements, and matching all International quality material standards as like ASTM, AISI, SAE, DIN, JIS, B.S, GOST, GB and ISO as well as the specification according to customer needs and non magnetic stainless steel, nickel and chrome base alloys, brass/bronze alloys, Monel alloys, carbon and alloy steels etc.
We are welcome OEM manufacture!
Investment casting tolerance & parameter
Reference dimensional tolerance (Investment casting) Unit:mm.
Nominal Size |
Tolerance |
Zone |
- |
Nominal Size |
Tolerance |
Zone | ||
|
0 |
3 |
¡À0.14 |
0.28 |
- |
100 |
120 |
¡À0.50 |
1.00 |
|
3 |
6 |
¡À0.16 |
0.32 |
120 |
140 |
¡À0.84 |
1.68 | |
|
6 |
10 |
¡À0.18 |
0.36 |
140 |
160 |
¡À0.92 |
1.84 | |
|
10 |
16 |
¡À0.19 |
0.38 |
160 |
180 |
¡À1.02 |
2.04 | |
|
16 |
25 |
¡À0.21 |
0.42 |
180 |
200 |
¡À1.12 |
2.24 | |
|
25 |
40 |
¡À0.23 |
0.46 |
200 |
225 |
¡À1.28 |
2.56 | |
|
40 |
63 |
¡À0.25 |
0.50 |
225 |
250 |
¡À1.44 |
2.88 | |
|
63 |
100 |
¡À0.38 |
0.79 |
250 |
350 |
¡À1.60 |
3.20 | |
Reference casting surface quality standard: Ra 6.3
Ref Min casting weight 10g
Ref Max casting weight: 25kgs
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