China Factory Lost Wax Precision Casting Excavator Parts

Product Description

1. Products Description: 

Investment Casting  Excavator Parts

Investment casting is an ancient manufacturing process that has been used for centuries to create complex, high-precision metal parts. The process begins with the creation of a wax model, which is then covered with a ceramic slurry to form a shell.

Once the shell has hardened, the wax is melted and the molten metal is poured into the cavity. Once the metal has solidified, the ceramic shell is removed using a vibrating hammer and the resulting part is calibrated, among other things using our unique multi-dimensional straightening technique.

Investment casting also produces less waste than traditional methods such as sand casting or die casting, making it more cost effective and environmentally friendly.

Item	Details
Material	Carbon Steel, Stainless Steel,Alloy Steel, Iron, Copper, Aluminum
Surface Treatment	Painting, Galvanized, Dacromet,Powder Coating, Polishing,etc.
Application	Mechanical Components/parts,Boat parts and Marine hardware,Construction hardware,Auto parts and accessories,Medical Instrument parts,pump & valve parts and accessories,Impellers and propellers(propellors),Pipe Fittings or pipeline accessories,Other industry metal casting parts
Tolerances	Customers' drawing request
Standard	AISI,ATSM,UNI,BS,DIN,JIS,GB etc
Service	OEM/ODM
Heat Treatment	Annealing,Normalizing,Homogenization Treatment ,Quenching, Tempering,Stabilizing, etc.
Process	Mold design→Wax injection→Assembly tree→Shell making→Dewax→Casting→Knockout→Cut off→Grinding→Inspection and post treatment→Finished casting
Design	Various type of 2D or 3D drawings are acceptable, such as JPG,PDF,DWG,,IGS,STP,STEP etc.
Quality Control	Dimension inspection,Chemical composition analysis (Spectrum analysis),Mechanical property testing,X-Ray inspection,Dye penetrant inspection,Magnetic powder inspection,Metallographic inspections

2. Production Process 
-Mold design
According to customers' drawing, our engineer will finish the mold design.And then make the mould according to the design.
-Wax injection
The wax is being injected by the machine. Wax design of the desired castings is produced by injection molding.
-Assembly tree
The patterns are attached to a central wax stick, to form a casting cluster or assembly tree.
-Shell making
The shell is built by immersing the assembly in a liquid ceramic slurry and then into a bed of extremely fine sand. Up to 6 layers may be applied in this manner. The shell will be dry in each layer making.
-Dewaxing
Once the ceramic is dry, then heating. The wax will be melted out. The melted wax will be flow out from the shell.
-Casting
In the conventional process, the shell is filled with molten metal by gravity pouring. As the metal cools, the parts and gates, sprue, and pouring cup become solid casting.
-Knock-out
When the metal has cooled and solidified, the ceramic shell will be broken off by vibration or a knock-out machine.
-Cut off
The parts are cut away from the central spruce using a high-speed friction saw.
-Grinding
After the casting was cut off. The casting pouring part will be ground carefully.
-Inspection and post treatment
The casting will be inspected by the inspector as per the drawing and quality request. If there are unqualified parts. It will be repaired and inspected again.
-Finished casting
After surface finishing operations, the metal castings become identical to the original wax pattern.
-Machining
The casting blank will be machined by CNC according to customers' drawings
-Testing
The finished parts will be tested by the professional inspection engineer.
-Packing
The qualified parts will be packed according to customers' request.
3. Inspection
4. Packing And Transport
Packing Details:

1. Bubble bag and color box per piece used for sales directly, many boxes per carton box, then packed in standard export plywood case/pallet
2. Carton box+standard export plywood case/pallet
3. Bubble bag per piece, then packed in standard export plywood case directly
4. Export plywood case directly

All packing conform to the long-distance transportation which is strong. If clients have special requirement about packing, it's acceptable.

5.Customer Photos
6. Company Profile 
7.FAQ

1. Are you a manufacturer or a trading company? Do you have your own factory?

We have a casting factory and a machinery factory, and also we have cooperative plants to provide other services, such as plating and coating.

2.What material can you do?

We make investment casting with carbon steel ,alloy steel, stainless steel and other material.

3. Can you make casting according to our drawing?

Yes, we can make investment casting parts according to your drawing, 2D or 3D. If the 3D model can be supplied, the development of the tooling can be more efficient. But without 3D, based on 2D drawing we can still make the samples properly approved.

4. Can you make casting based on our samples?

Yes, we can make measurement based on your samples to make drawings for tooling making.
 

5.How many days will samples be finished?
A:Generally, the mould and sample will be finished within one month.

 

6. What's your quality control device in house?

We can do many tests to control the quality in all directions. Such as dimension inspection,chemical composition analysis (spectrum analysis),mechanical property testing,X-Ray inspection,dye penetrant inspection,magnetic powder inspection,metallographic inspections and so on