2020 High quality Vacuum Casting Company - Custom Alloy Steel V Process Casting Product – RMC Foundry

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2020 High quality Vacuum Casting Company - Custom Alloy Steel V Process Casting Product – RMC Foundry Detail:

China custom alloy steel castings produced by vacuum casting process and CNC machining.

Vacuum castings are the metal parts that are produced by the vacuum casting process. They are different from typical investment castings due to the technique that is used to create these metal parts. The process begins by placing a two-piece mold in a vacuum chamber. The vacuum then draws the molten metal into the mold. Finally, the casting is solidified in an oven and the mold is removed in order to release the final castings.

If you have a project that requires high-quality vacuum castings, we can provide them for you. Here at RMC, we utilize both gravity fed and vacuum casting methods to produce custom castings those range in weight from a few kilograms up to hundreds of kilograms. Our countless years of experience in both of these methods guarantee that we can supply superior or near net shape parts that require little or no finish work.

▶ Vacuum Casting Materials:
• Carbon Steel: Low Carbon Steel, Medium Carbon Steel and High Carbon Steel from AISI 1020 to AISI 1060.
• Cast 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 and other stainless steel grade.
• Brass & Copper.
• Other Materials and Standards on request

▶ V Process Casting Capacities:
• Max Size: 1,000 mm × 800 mm × 500 mm
• Weight Range: 0.5 kg – 100 kg
• Annual Capacity: 2,000 tons
• Tolerances: On Request.

▶ Vacuum Casting Procedures:
• The pattern is covered tightly by a thin sheet of plastic.
• A flask is placed over the coated pattern and is filled with dry sand without bind.
• The second flak is then placed on top of the sand, and a vacuum draws the sand so that the pattern can be tight and withdrawn. Both halves of the mold are made and assembled in this way.
• During pouring, the mold remains under a vacuum but the casting cavity does not.
• When the metal has solidified, the vacuum is turned off and the sand falls away, releasing the casting.
• Vacuum molding produces casting with high-quality detail and dimensional accuracy.
• It is especially well suited for large, relatively flat castings.

Capabilities for Casting at RMC
Casting Process		Annual Capacity / Tons	Main Materials	Casting Weight	Dimensional Tolerance Grade (ISO 8062)	Heat Treatment
Green Sand Casting		6000	Gray Cast Iron, Ductile Cast Iron, Cast Al, Brass, Cast Steel, Stainless Steel	0.3 kg to 200 kg	CT11~CT14	Normalization, Quenching, Tempering, Annealing, Carburization
Resin Coated Sand Casting (Shell Casting)				0.66 lbs to 440 lbs	CT8~CT12
Lost Wax Investment Casting	Water Glass Casting	3000	Stainless Steel, Carbon Steel, Alloy Steel, Brass, Aluminium, Duplex Stainless Steel, Cast Iron	0.1 kg to 50 kg	CT5~CT9
				0.22 lbs to 110 lbs
	Silica Sol Casting	1000		0.05 kg to 50 kg	CT4~CT6
				0.11 lbs to 110 lbs
Lost Foam Casting		4000	Gray Iron, Ductile Iron, Alloy, Carbon Steel, Stainless Steel, Brass, Al	10 kg to 300 kg	CT8~CT12
				22 lbs to 660 lbs
Vacuum Casting		3000	Gray Iron, Ductile Iron, Alloy Steel, Carbon Steel, Stainless Steel	10 kg to 300 kg	CT8~CT12
				22 lbs to 660 lbs
High Pressure Die Casting		500	Aluminium Alloys, Zinc Alloys	0.1 kg to 50 kg	CT4~CT7
				0.22 lbs to 110 lbs

▶ 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.

▶ Why You Choose RMC for V (Vacuum) Process Casting Components?
• Easy recovery of the sand because the binders are not used
• Sand does not require mechanical reconditioning.
• Good air permeability because there is no water is mixed with sand, therefore less casting defects.
• More suitable for large scale castings
• Cost effective, especially for large castings.

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