Chinese Professional Stainless Steel Lost Wax Casting – Gray Iron Sand Casting Company – RMC Foundry

Short Description:

Lost wax casting is a kind of precision casting to produce complex near-net-shape casting parts using replication of wax patterns. The name 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 part is formed by pouring molten metal (stainless steel, alloy steel, brass, nickel alloy or other metals) into the ceramic mold.

The lost wax casting process produces near-net-shape precision metal parts that often require little or no additional CNC machining. That is why it is called precision casting. The finish of the lost wax castings are also much better than what is achieved through other metal forming processes. The strength and durability of the casting parts make themselves ideal for high wear-resistance applications requiring millions of cycles.

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Chinese Professional Stainless Steel Lost Wax Casting – Gray Iron Sand Casting Company – RMC Foundry Detail:

Gray Iron Sand Casting Company from China with OEM Custom and CNC Machining Services.

Cast iron is an iron-carbon cast alloy with other elements that is made by remelting pig iron, scrap, and other additions. For differentiation from steel and cast steel, cast iron is deﬁned as a cast alloy with a carbon content (min 2.03%) that ensures the solidiﬁcation of the ﬁnal phase with a eutectic transformation.

Depending on chemical speciﬁcations, cast irons can be non- alloyed or alloyed. The range of alloyed irons is much wider, and they contain either higher amounts of common components, such as silicon and manganese, or special additions, such as nickel, chromium, aluminum, molybdenum, tungsten, copper, vana- dium, titanium, plus others. Generally speaking, the cast iron could be divided into gray iron, ducitle iron (nodular iron), white cast iron, compacted graphite iron and malleable cast iron.

Equivalent Grade of Grey Cast Iron
AISI	W-stoff	DIN	BS	SS	AFNOR	U.N.E. / I.H.A.	JIS	UNI
A48-20B	0.6010	GG-10	Grade 100	0110-00	-	-	FC 100	G 10
A48-25B	0.6015	GG-15	Grade 150	0115-00	Ft 15 D	FG 15	FC 150	G 15
A48-30B	0.6020	GG-20	Grade 200	0120-00	Ft 20 D	FG 20	FC 200	G 20
A48-40B	0.6025	GG-25	Grade 250	0125-00	Ft 25 D	FG 25	FC 250	G 25
A48-45B	0.6030	GG-30	Grade 300	0130-00	Ft 30 D	FG 30	FC 300	G 30
A48-50B	0.6035	GG-35	Grade 350	0135-00	Ft 35 D	FG 35	FC 350	G 35
A48-60B	0.6040	GG-40	Grade 400	0140-00	Ft 40 D	-	FC 40	-
32510		GTS-35	B340/12	0815-00	MN 35-10	-	FCMW 330	-
A220-40010	0.8145	GTS-45	P440/7	0852-00	MN 450	-	FCMP 440/490	GMN 45
A220-50005	0.8155	GTS-55-04	P510/4	0854-00	MP 50-5	-	FCMP 490	GMN 55
A220-70003	0.8165	GTS-65-02	P570/3	0856-00	MN 650-3	-	FCMP 590	GMN 65
A220-70003	-	GTS-65	P570/3	0858	MN 60-3	-	FCMP 540	-
A220-80002	0.8170	GTS-70-02	P690/2	0862-00	MN 700-2	-	FCMP 690	GMN 70

Raw Materials Available for Sand Casting
• Gray Iron: GJL-100, GJL-150, GJL-200, GJL-250, GJL-300, GJL-350
• Ductile Iron: GJS-400-18, GJS-40-15, GJS-450-10, GJS-500-7, GJS-600-3, GJS-700-2, GJS-800-2
• Aluminium and Their Alloys
• Other Materials and Standards: on request

Capabilities of Sand Casting moulded by hand:
• Max Size: 1,500 mm × 1000 mm × 500 mm
• Weight Range: 0.5 kg - 500 kg
• Annual Capacity: 5,000 tons - 6,000 tons
• Tolerances: On Request.

Capabilities of Sand Casting by Automatic Molding Machines:
• Max Size: 1,000 mm × 800 mm × 500 mm
• Weight Range: 0.5 kg - 500 kg
• Annual Capacity: 8,000 tons - 10,000 tons
• Tolerances: On Request.

Main Production Procedure
Patterns & Tooling Design → Making Patterns → Moulding Process → Chemical Composition Analysis → Melting & Pouring → Cleaning, Grinding & Shot Blasting → Post Processing or Packing for Shipment

Sand Casting Inspection Capabilities
• 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, Andonizing, Electroplating, Hot Zinc Plating, Zinc Plating, Nickel Plating, Polishing, Electro-Polishing, Painting, GeoMet, Zintec
• Machining: Turning, Milling, Lathing, Drilling, Honing, Grinding,

General Commerial Terms
• Main work flow: Inquiry & Quotation → Confirming Details / Cost Reduction Proposals → Tooling Development → Trial Casting → Samples Approval → Trial Order → Mass Production → Continuous Order Proceeding
• Lead time: 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.

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Alloy Steel Lost Wax Casting