Copper Alloy Casting is alwasy refer to the Bronze Castings or Brasss Castings for different purpose. Although Investment Casting for Bronze Castings & Brasss Castings is talking an important role, sand casting and Centrifugal Casting are taking an important part too.
Introduction to Copper Alloy Casting
Copper alloy casting is a important role of non ferrous casting that allows for using various copper – based alloys- Brass Alloy and Bronze Alloy. These alloys offer unique properties, making them suitable for numerous applications across different industries
Casting Processes for Copper Alloy Casting
The common Copper Alloy Casting process from Leesh are Investment Casting | Sand Casting | centrifugal casting
Differnt Process has its unique advantage for certain fields:
Investment Casting process more suitable for small size/mass, complex shape and high precision/surface finish requirments;
Sand Casting Process is the most traditional and cost friendly process,it offers flexibility in terms of the size/mass and design of the castings.
centrifugal casting Process is special for cylindrical or symmetric parts.The molten copper alloy is poured into a rotating mold, and the centrifugal force distributes the metal evenly, resulting in a dense and uniform casting. This process is often used for pipes, tubes, and other circular components.
Common Copper Alloy Types & Grades
Aluminum Bronzes – These alloys are often used in applications where durability is crucial, such as in heavy – duty machinery, valves, and pumps.
Manganese Bronzes – They find applications in marine hardware, gears, and propellers due to their ability to withstand high stress and wear.
Tin Bronzes – They are commonly used in bearings, bushings, and other components that require low – friction and high – wear resistance.
Leaded Bronzes – This makes them easier to shape and finish, making them popular for components that require extensive machining, such as plumbing fixtures and some small – engine parts.
Silicon Bronzes & Brasses – They are often used in marine and plumbing applications, where exposure to water and other corrosive substances is common.
Cupronickels (Copper – Nickel) – They are widely used in marine environments, including shipbuilding, offshore platforms, and desalination plants.
Copper Alloy Casting | Brass Alloy Casting |Bronze Alloy Casting , for your prompt assistance needed, please contact info@leesh.cn, thanks.
| Manufacturing Method | Investment Casting Services(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 Services , 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 | |||
| 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/
