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Silica Solution Investment Casting A351M A743M CF8M Castings

Silica Solution Investment Casting with CF8M

Silica Solution Investment Casting at Leesh Investment Casting Foundry is the key to producing top – notch products made from ASTM A351M/A743M CF8M (EN10213/EN10283 1.4408). This process ensures precision and high – quality castings.

CF8M: A Superior Austenitic Stainless Steel

CF8M is an austenitic stainless steel. The presence of molybdenum significantly enhances its wear resistance in reducing media, as well as against various organic acids, alkalis, and salts. Its intergranular corrosion resistance is remarkable. This makes it an ideal choice for applications where high corrosion resistance is crucial.

Diverse Applications

In the chemical equipment industry, especially in processes involving nitric acid and other organic acids, CF8M is highly sought – after. In petroleum refining equipment, it is used for parts like pump covers, impellers, and valves that require superior corrosion resistance. Leesh Foundry meets the demands of both the Chinese and global markets, producing hundreds of tons of these castings annually.

Unwavering Commitment to Quality

At Leesh, we adhere to the “Quality First” principle. From the moment we purchase raw materials, throughout the manufacturing process, until the final delivery, we pay 100% attention to every detail. This meticulous approach ensures that our customers can experience the difference in quality in every CF8M casting we produce, whether it’s a small – scale order or a large – volume requirement for the chemical or petroleum refining sectors.

Silica Solution Investment Casting Cover

Our company provides high-quality investment casting services, specializing in the production of precision valve body components. As shown in our facility, we handle high-volume orders for complex parts, from raw casting to finished product. Using advanced investment casting techniques, we manufacture durable valve body parts in various alloys, including stainless steel and bronze. We are an OEM partner for your industrial needs.

Manufacturing Method	Investment Casting(Lost Wax Casting)
Material Standard	GB, ANSI, BS, DIN, JIS, ASTM, ASME, AISI, etc Carbon steel, Low carbon steel, Middle carbon steel, G35, G45, WCB, WCA, WCC, ISO 340-550, etc. Alloy Carbon steel: G25CrMo4, Heat Resistant Steel, etc. Stainless Steel: SUS 304, 304L, 316, 316L, CF8, CF8M, G-X7CrNiNb1189, AS2074 or according to customer specific requirement. Copper, Brass, Bronze
Weight Range	0.01 kgs to 100 kgs
Cast Hole Min. Dia.	Ø2mm
General Casting Tolerance	CT4-CT7
Design Software	UG, Pro-E, Inventor
Dwg Format	STP, STEP, IGS,STP,X_T ,DXF,DWG , Pro/E, PDF, SLDPRT
Mould Manufacturing	Yes
Casting Stimulation	Yes
Ultimate machining tolerance	0.005mm
Quality Control	RT,UT,MT,PT,CMM,SCAN,Chemical and Mechanical Property Testing,Spectrometer,etc
Finish Roughness	Ra1.6-Ra3.2 according to customer requirement
Logo/ID	Silk-screening, Laser Marking, Engrave,Painting
Heat Treatment	Normalization, Annealing, Quenching and Tempering, Case Hardening, Nitriding, Carbon Nitriding, Induction Quenching,etc
Surface Treatment	Shot/sand blast, Polishing, Surface Passivation, Painting , Anodizing,Powder coating, ED- Coating, Chrome Plating, zinc-plate, Dacromat coating, Finish Painting,hot-dip galvanizing, etc

Investment casting, also known as lost wax casting, is a casting method in which a pattern is made of a melt-able material, then coated with several layers of refractory material to form a shell, and the pattern is melted away after high-temperature firing, and then the molten metal is poured into the shell.

Investment casting have high precision and high surface quality, with small machining allowances, which can achieve less or no machining requires. Investment casting can cast complex thin-walled parts with complex shapes (the minimum wall thickness can reach 0.25-0.4mm), and the smallest hole diameter can reach 2.5mm.

The process normal as below:

Drawing Review ->Tooling Designing ->Tooling Manufacturing ->Wax Pattern Making ->Pattern Tree Assembly ->Dipping and Coating ->De-waxing and Firing- Pouring-Knockout ->Grinding ->Heat Treatment -> Machining(if requires) ->Inspection->Delivery

Leesh holdings is the key leading supplier of investment cast parts to both China market and global market.Through many years development, our casting parts now services in railway, automobile and truck, construction machinery, mining machinery, forklift truck, agricultural machinery, ship, petroleum machinery, construction, pump valve, mechanical and electrical, hardware tools, electric power equipment, etc.

Leesh capability

Method: Investment Casting, Lost Wax Casting, Precision Casting

Process Description	Process Control
Process Description	Mass(kgs)	General Tolerance Standard	Casting Tolerance(CT)	Surface Rougness(μm)
Silicon Sol	0.05-50	ISO 8062	CT4-CT6	Ra 3.2～6.3 μm
Water Glass	0.10-100	ISO 8062	CT6-CT8	Ra 6.3～12.5 μm

Material:

Stainless Steel (General SUS304, SUS316, 1.4301), etc.,

Stainless Iron (General 201, 420, 430), etc.,

High/Middle/Low Carbon Steel (A3, Q235, 45), etc.,

Alloy Steel (General 20cr, 20crmo, 20crnimo, 40cr, 40crmo, 40crnimo, 42cr, 42crmo, 42crnimo) etc.,

Brass (H59, H62, H75, H80), etc.,

Red Copper, Bronze, White Copper and other materials.

The above list Is For Reference Only, If You Have Special Needs, Please Contact Customer Service Staff.

Post Casting Process:

Ordinary Polishing, Mirror Polishing, Electrolytic Polishing, Brushed Finishing, Grinding, Heat Treatment, Finishing, Drilling and Tapping,Plating, etc

Surface Treatment:

polishing, powder coating, zinc plating, chrome plating,heat treatment,tumbling polishing, electro-polishing.

We understand your concerns about the quality, we have bought full sets of advanced inspection facilities,Spectrum analyzer, metallographic microscope, tensile testing machine, low temperature impact testing machine, X-ray flaw detection machine, magnetic particle flaw detection machine, ultrasonic flaw detection machine, coordinate measuring instrument, image measuring instrument. The above equipment can ensure the supply of high-standard precision castings to customers, and meet customers’ comprehensive testing requirements for physical and chemical properties of materials, non-destructive defect testing, and high-precision geometric size testing.

https://chinafoundrygroup.com/investment-casting-service/