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Casting type:
precision dewaxing casting
features : fine surface, smooth finish, accurate dimension, low cost ,etc .

Production cycle: from mould design to finished product within 3 months.
General casting tolerances:
Weight: 500g ±15 g
Dimension: 100 mm ±0.10 mm
Surface finish: Ra3.2

Casting's weight : 3g-20kg/piece
Wax injection control parameters:
Type of pattern wax: 162--20 (made in USA)
Temperature : 0--120(wax processing)
Dwell time : 0--180 sec (wax mould making)
Clamping pressure : 0--6.3 Mpa
Soluble wax : reused
Water soluble wax : non-reused
Ceramic core : non-reused
Type of pre-wash: MEK cleaning mixture

Shell making material:
Silicasol: made in China
Zircon: RZM 325 made in Australia
Zircon: RZM 120 made in Australia
Molar powder : made in China

Shell making technology:
Prime coat: RZM325 + silicasol
Sands: RZM 120
Intermediate coat: RZM325 + molar powder200 + silicasol
Sands : molar sands30--60
Back-up coat: molar powder 200 + silicasol
Sands: molar sands16--30
Final seal coat: molar powder200 + silicasol
Shell Drying: Use air-conditioners and chain conveyer belts to control temperature, humidity and maintain even drying.
Dewaxing : Steam Pressure 0.8 Mpa Steam temperature: 170¡æ Time: 8 min

Sintering:
175kw high-frequency fast melting furnace Use LABTEST 20 spectrograph to analyze and control chemical composition
All kinds of stainless steel, carbon alloy steels, copper alloys and aluminum alloys are sintered according to the requirements of the customers.

Heat treatment: 65kw heat treatment furnace
Chemical treatment: passivated
Sand blasting treatment: high-pressure / low-pressure sand blasting machines
Machining: CNC lathe pouring gate grinding machine vibrating grinding machine 20ton press

Quality control: dimension precision, surface coarseness, chemical composition, mechanical properties, pressure test, etc.