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Casting Mirror Polishing: High-Precision Metal Finishing

Unveiling Casting Mirror Polishing

Casting mirror polishing is a specialized process that transforms investment castings into products with a lustrous, mirror – like finish. Whether it’s an investment casting pivot pipe coupling or other components crafted through lost wax casting, this technique adds a touch of refinement.

The Significance in Investment Casting

In investment casting, mirror polishing takes the high – precision cast parts to the next level. Investment casting already allows for the creation of complex shapes, and mirror polishing enhances their aesthetic appeal and functionality. For pivot pipe couplings, a mirror – polished surface reduces friction, improving the overall performance of the mechanical system.

The Process of Mirror Polishing in Lost Wax Casting

In lost wax casting, once the metal part is cast, the mirror – polishing process begins. Skilled technicians use a series of abrasive materials and polishing compounds. Starting with coarser abrasives to remove any surface imperfections, they gradually move to finer ones. This meticulous process ensures that the final surface of the casting reflects light like a mirror.

Why Choose Casting Mirror Polishing?

Opting for casting mirror polishing means getting a product that stands out in terms of both appearance and performance. It not only gives the castings a premium look but also increases their durability. Components with a mirror – polished surface are less likely to accumulate dirt and are easier to clean.

In conclusion, if you’re seeking to enhance the quality of your investment cast products, especially those like pivot pipe couplings, casting mirror polishing is the key. It combines the art of precision finishing with the science of casting to deliver exceptional results.

As a leading Cast Parts Manufacturer in China, we 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/