русский
Contact Us
Add: No. 58, Lingshanwan Road, Huangdao, Qingdao, China
Phone: +86 186 6184 7678
Fax: +86 532 8687 1520
Email: info@rinborn.com
Follow Us:
Silica Sol Casting Steel Foundry
Material: Stainless Steel AISI 316, CF8M, 1.4408 Process: Investment Casting + CNC Machining Weight: 5.26 KG Application: Semi-Open Impeller Heat Treatment: Solid Solution
Custom investment casting stainless steel products for semi-open impeller with silica sol as binder materials during the casting process.
Investment Casting (with Silica Sol as Binder Material) Semi-Open Impeller of Stainless Steel
Shell making is very important during investment casting. The binder materials we choose will influent the finish and accuracy of the final metal castings. The quality of the shell is directly related to the roughness and dimensional tolerance of the final casting. Therefore, it is an important task for the investment casting foundry to choose a suitable manufacturing method for the mold shell.
According to different adhesives, investment casting molds can be divided into water glass adhesive shells, silica sol adhesive shells, ethyl silicate adhesive shells and ethyl silicate-silica sol composite shells. These modeling methods are the most commonly used methods in investment casting.The silica sol investment casting has low roughness, high dimensional accuracy, and long shell-making cycle. This process is widely used in high-temperature heat-resistant alloy castings, heat-resistant steel castings, stainless steel castings, carbon steel castings, low alloy castings, aluminum alloy castings and copper alloy castings.
Investment Casting Technical Data at RMC Foundry |
|
| R & D | Software: Solidworks, CAD, Procast, Pro-e |
| Lead Time for Development and Samples: 25 to 35 days | |
| Molten Metal | Ferritic Stainless Steel, Martensitic Stainless Steel, Austenitic stainless steel, Precipitation Hardening Stainless Steel, Duplex Stainless Steel |
| Carbon Steel, Alloy Steel, Tool Steel, Heat Resistant Steel, | |
| Nickle-base Alloy, Aluminium Alloy, Copper-base Alloy, Cobalt-base Alloy | |
| Metal Standard | ISO, GB, ASTM, SAE, GOST EN, DIN, JIS, BS |
| Material for Shell Building | Silica Sol (Precipitated Silica ) |
| Water Glass (Sodium Silicate) | |
| Mixtures of Silica Sol and Water Glass | |
| Technical Parameter | Piece Weight: 2 gram to 200 kilo gram |
| Max Dimension: 1,000 mm for Diameter or Length | |
| Min Wall Thickness: 1.5mm | |
| Casting Roughness: Ra 3.2-6.4, Machining Roughness: Ra 1.6 | |
| Tolerance of Casting: ISO8062; VDG P690, D1/CT5-7 | |
| Tolerance of Machining: ISO 2768-mk/IT6 | |
| Inner Core: Ceramic Core, Urea Core, Water Soluble Wax Core | |
| Heat Treatment | Normalizing, Tempering, Quenching, Annealing, Solid Solution, Carburization. |
| Surface Treatment | Polishing, Sand / Shot Blasting, Zinc Plating, Nickel Plating, Oxidation Treatment, Phosphating, Powder Painting, Geormet, Anodizing |
| Dimension Testing | CMM, Vernier Caliper, Inside Caliper. Depth Gauge, Height Gauge, Go/No go Gauge, Special Fixtures |
| Chemical Inspection | Chemical Compostion Analysis (20 chemical elements), Cleanliness Inspection, X-ray Radiographic Inspection, Carbon-Sulfur Analyser. 3.1 Material Certificate is Available |
| Physical Inspection | Dynamic Balancing, Static Blancing, Mechanical Properties (Hardness, Yield Strength, Tensile Strength), Elongation |
| Production Capacity | More than 250 tons per month, more than 3,000 tons annually. |
▶ Available Raw Materials for Investment Casting, Lost Wax Casting Process:
- Carbon Steel: AISI 1020 - AISI 1060,
- Steel Alloys: ZG20SiMn, ZG30SiMn, ZG30CrMo, ZG35CrMo, ZG35SiMn, ZG35CrMnSi, ZG40Mn, ZG40Cr, ZG42Cr, ZG42CrMo...etc on request.
- Stainless Steel: AISI 304, AISI 304L, AISI 316, AISI 316L, 1.4404, 1.4301 and other stainless steel grade.
- Brass & Copper.
- Other Materials and Standards on request
▶ Capabilities of Investment Casting Foundry
- Max Size: 1,000 mm × 800 mm × 500 mm
- Weight Range: 0.5 kg - 100 kg
- Annual Capacity: 2,000 tons
- Bond Materials for Shell Building: Silica Sol, Water Glass and their mixtures.
- Tolerances: On Request.
▶ Main Production Procedure
- Patterns & Tooling Design → Metal Die Making → Wax Injection → Slurry Assembly → Shell Building → De-Waxing → Chemical Composition Analysis → Melting & Pouring → Cleaning, Grinding & Shot Blasting → Post Processing or Packing for Shipment
▶ Inspecting Investment Castings
- Spectrographic and manual quantitative analysis
- Metallographic analysis
- Brinell, Rockwell and Vickers hardness inspection
- Mechanical property analysis
- Low and normal temperature impact testing
- Cleanliness inspection
- UT, MT and RT inspection
▶ Post-Casting Process
- Deburring & Cleaning
- Shot Blasting / Sand Peening
- Heat Treatment: Normalization, Quench, Tempering, Carburization, Nitriding
- Surface Treatment: Passivation, Anodizing, Electroplating, Hot Zinc Plating, Zinc Plating, Nickel Plating, Polishing, Electro-Polishing, Painting, GeoMet, Zintec.
- Machining: Turning, Milling, Lathing, Drilling, Honing, Grinding.
▶ Why You Choose RMC for Custom Investment Castings?
- Full solution from one single supplier ranging customized pattern design to finished castings and secondary process including machining, heat treatment and surface treatment.
- Costdown proposals from our professional engineers based on your unique requirement.
- Short leadtime for prototype, trial casting and any possible technical improvement.
- Bonded Materials: Silica Col, Water Glass and their mixtures.
- Manufacturing flexibility for small orders to mass orders.
- Strong outsourcing manufacturing capabilities.