Brass and Bronze Lost Wax Investment Casting Company

Brass and Bronze Lost Wax Investment Casting Company

Material: Brass, Bronze and other Copper-alloy Metal
Process: Silica Sol or Water Glass Lost Wax Investment Casting
Weight: 1.60 kg
Application: Flange

China Brass and Bronze Lost Wax Investment Casting Company with OEM Custom and CNC Precision Machining Services. Other copper based alloys are also available. Customized services are acceptable.

Description

China Brass and Bronze Lost Wax Investment Casting Company with OEM Custom and CNC Precision Machining Services

Brass is an alloy composed of copper and zinc. Brass composed of copper and zinc is called ordinary brass. If it is a variety of alloys composed of more than two elements, it is called special brass. Brass is a copper alloy with zinc as the main element. As the zinc content increases, the strength and plasticity of the alloy increase significantly, but the mechanical properties will decrease significantly after exceeding 47%, so the zinc content of brass is less than 47%. In addition to zinc, cast brass often contains alloying elements such as silicon, manganese, aluminum, and lead. Casting brass has higher mechanical properties than bronze, but the price is lower than bronze. Cast brass is often used for general purpose bearing bushes, bushings, gears and other wear-resistant parts and valves and other corrosion-resistant parts. Brass has strong wear resistance. Brass is often used to make valves, water pipes, connecting pipes for internal and external air conditioners, and radiators.

Investment (lost wax) casting is a method of precision casting complex near-net-shape details using replication of wax patterns. Investment casting or lost wax is a metal forming process that typically uses a wax pattern surrounded by a ceramic shell to make a ceramic mold. When the shell dries, the wax is melted away, leaving only the mold. Then the casting component is formed by pouring molten metal into the ceramic mold.

The process is suitable for repeatable production of net shape components from a variety of different metals and high performance alloys. Although generally used for small castings, this process has been used to produce complete aircraft door frames, with steel castings of up to 500 kgs and aluminium castings of up to 50 kgs. Compared to other casting processes such as die casting or sand casting, it can be an expensive process. However, the components that can be produced using investment casting can incorporate intricate contours, and in most cases the components are cast near net shape, so require little or no rework once cast.

Silica sol casting process is the main investment casting process at RMC investment casting foundry. We have been developing new technology of adhesive material to achieve much more economical and effective adhesive material to build the slurry shell. It is a overwhelming trend that Silica sol casting process replaces the rough inferior water glass process, especially for stainless steel casting and alloy steel casting. Besides the innovated molding material, the silica sol casting process has also being innovated to much steadier and less heat expanding.

▶ Ferrous and Non-ferrous 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, Red Copper, Bronze or other Copper-based alloy metals
• Other Materials as per your unique requirements or according to ASTM, SAE, AISI, ACI, DIN, EN, ISO, and GB standards

▶ 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 of Brass Lost Wax Investment Casting
• 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 Lost Wax 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.

▶ Advantages of Brass or Copper Investment Casting Components:
• Excellent and smooth surface finish
• Tight dimensional tolerances.
• Complex and intricate shapes with design flexibility
• Capability to cast thin walls therefore a lighter casting component
• Wide selection of cast metals and alloys (ferrous and non-ferrous)
• Draft is not required in the molds design.
• Reduce the need for secondary machining.
• Low material waste.

▶ Why You Choose RMC for Custom Brass Lost Wax Casting Parts?
• Full solution from one single supplier ranging customized pattern design to finished castings and secondary process including CNC 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.

▶ General Commerial Terms
• Main workflow: Inquiry & Quotation → Confirming Details / Cost Reduction Proposals → Tooling Development → Trial Casting → Samples Approval → Trial Order → Mass Production → Continuous Order Proceeding
• Leadtime: Estimatedly 15-25 days for tooling development and estimatedly 20 days for mass production.
• Payment Terms: To be negotiated.
• Payment methods: T/T, L/C, West Union, Paypal.


Grade Comparison of Copper, Brass and Bronze for Lost Wax Casting at RMC Foundry
Description AISI W-stoff DIN BS JIS EN ISO

COPPER
C10200 2.0040 OF Cu C103 C1020 CW008A Cu-OF
C11000 2.0060 E-Cu57 C101 C1100 CW004A Cu-ETP
- 2.0065 E-Cu58 - - - -
C10300 2.0070 SE Cu - - CW021A -
C12200 2.0090 SF Cu C106 C1220 CW024A Cu-DHP
C12500 - Cu-FRTP C104 - CR006A -
C70320 2.0857 - - - CW112C CuNi3Si
C14200 2.1202 SB Cu C107 - - Cu-AsP
- 2.1356 Cu Mn 3 - - - -
- 2.1522 Cu Si2 Mn - - - -
C16200 - C108 - - CuCd1
C18200 - CC101 - CW105C CuCr1
C191010 - - - CW109C CuNi1Si
C70250 - CC102 - CW111C CuNi2Si
C17200 - CB101 - CW101C CuBe2
C17300 - - - CW102C CuBe2Pb
C17510 - - - CW110C CuNi2Be
C17500 - C112 - CW104C CuCo2Be
C15000 - - - CW120C CuZr
C65100 - - - CW115C CuSi2Mn
C65500 - CS101 - CW116C CuSi3Mn1
C14500 - C109 - CW118C CuTeP
C14700 - C111 - CW114C CuSP
C18700 - - - CW113C CuPb1P

BRASS
C21000 2.0220 CuZn5 CZ125 C2100 CW500L -
C22000 2.0230 CuZn10 Cz101 C2200 CW501L -
C23000 2.0240 CuZn15 CZ102 C2300 CW502L -
C24000 2.0250 CuZn20 CZ103 C2400 CW503L -
C25600 - CuZn28 - - - -
C26000 2.0265 CuZn30 CZ106 C2600 CW505L -
C26800 2.0280 CuZn33 - C2680 CW506L -
C27200 - CuZn36 - - - -
C27200 2.0321 CuZn37 CZ108 C2700 CW508L -
C27000 2.0335 CuZn36 CZ107 C2700 CW507L -
C28000 2.0360 CuZn40 CZ109 C2800 CW509L -
C33500 - CuZn37Pb0.5 - - - -
C34000 - CuZn35Pb1 CZ118 C3501 - -
C34500 2.0331 CuZn36Pb1,5 CZ119 - CW601N -
C34000 2.0331 CuZn36Pb1,5 CZ119 C3501 CW600N -
C35300 2.0371 CuZn38Pb1,5 CZ128 - - -
C36500 2.0372 CuZn39Pb0,5 CZ123 - CW610N -
C36000 2.0375 CuZn36Pb3 CZ124 C3601 CW603N -
C37700 2.0380 CuZn39Pb2 CZ 131 / (CZ128) C3771 CW612N -
C38500 2.0401 CuZn39Pb3 CZ121 C3603 CW614N -
C38000 2.0402 CuZn40Pb2 CZ122 - CW617N -
- 2.0410 CuZn44Pb2 CZ130 - - -
C68700 2.0460 CuZn20Al2 CZ110 - - -
C44300 2.0470 CuZn28Sn1 CZ111 - - -
- 2.0530 CuZn38Sn1 - - - -
- 2.0550 CuZn40Al2 - - - -
- 2.0561 CuZn40Al1 - - - -
- 2.0572 CuZn40Mn2 CZ136 - CW723R -
C61400 2.0932 CuAl8Fe3 - - CW303G -
C63000 2.0966 CuAl10Ni5Fe4 CA104 - CW307G -

BRONZE
C50700 2.1010 CuSn2 - - - -
C51100 2.1016 CuSn4 PB101 C5111 CW450K -
C51000 - CuSn5 PB102 C5102 CW451K -
C51900 2.1020 CuSn6 PB103 C5191 CW452K -
C52100 2.1030 CuSn8 PB104 C5212 CW453K -
- - CuSn10 - - - -
- - CUSn11 - - - -
- - CuSn12 - - - -



To know better about our capabilities of lost wax casting process, please click the following picture to turn to our page of Investment Casting Capabilities:


brass and bronze investment casting foundry


brass casting components with cnc machining