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Winnington Casting Co., Ltd
Expert of stainless steel kitchen and bathroom products, investment casting parts!
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Valve body precision investment casting CNC machining capacity electro polished finish

Valve body precision investment casting CNC machining capacity electro polished finish

Place of Origin : China precision investment casting
Brand Name : Winnington precision investment casting
Certification : ISO 9001:2008, PED/AD2000 for precision investment casting
Model Number : Custom specification for precision investment casting
Minimun weight : 20g for precision investment casting
Maxium weight : 80kg for precision investment casting
Minumum wall thickness : 1.5-2mm for precision investment casting
Max dimensions : 500*500*350mm for precision investment casting
Capacity : 120Ton/month for precision investment casting
Standards : AISI,BS,DIN,JIS,GB for precision investment casting
casting process : Silica sol lost wax casting(green wax)
Machining : CNC machining,CNC lathe
surface finish : electro polish,satin,hand polished,pickled,zinc plating
MOQ : 20pcs for precision investment casting
Price : Customer specification for precision investment casting
Packaging Details : Air bubble or foam paper packing for precision investment casting
Delivery Time : 45-90 days for precision investment casting
Payment Terms : TT,LC for precision investment casting
Supply Ability : 120 Tons/Month for precision investment casting
Port : Shenzhen
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Valve body precision investment casting CNC machining capacity electro polished finish.


Quick Detail:


  • Casting of valve body for flow control industry;
  • Casting process: silica sol lost wax method;
  • Foundry with PED 97/23/EC & AD2000 W0 Certifications;
  • ISO9001:2008 certificated;
  • Chemical composition tested by German spectrometer;
  • NDT such as Dye test, X ray test are available.



Description:



Investment casting with ceramic shell process, die making and CNC machining capacity in house. Stainless steel, alloy steel, carbon steel investment castings weight from 10g to 80kg.

The most common material that Winnington cast:

Stainless Steel (70%)

Carbon Steel

Alloy Steel

303, 430, 420, CF3M (AISI 316L), CF8M (AISI 316), CF8 (AISI 304),CD4MCu, CD4MCuN,ANC20,1.4408,1.4517, 1.4306, 1.4581, 17-4PH, SCS1

and more

WCC, 1020, S355JR, SCS16, SCS14, SCS13, 1.0619, WCB, 1045 , LCC

and more

ANC2,CLA12C,42CrMo,7Q,8Q,4140,6150

and more



Investment Casting Process:

  • Wax die making: Our wax tooling is made of Aluminum which is easy for machining and fast for cooling, at the same time, light for handling.
  • Wax injection: Filling the entire mould with molten wax, and let it cool, until a desired wax pattern is shaped and harden.
  • Assemble the wax patterns: The wax patterns are welded to a runner system by a heated metal tool according to a certain pattern cluster(tree) design.
  • Investment: The ceramic mould, known as the investment, is produced by three repeating steps: coating, stuccoing, and hardening. The first step involves dipping the cluster into a slurry of fine refractory material and then letting any excess drain off, so a uniform surface is produced. This fine material is used first to give a smooth surface finish and reproduce fine details. In the second step, the cluster is stuccoed with a coarse ceramic particle, by dipping it into a fluidised barrel, placing it in a rainfall-sander. Finally, the coating is allowed to harden.
  • Dewax: The investment is then allowed to completely dry, which can take 16 to 48 hours. It is then turned upside-down and placed in a autoclave to melt out and/or vaporize the wax.
  • Burnout & preheating: The mold is then subjected to a burnout, which heats the mold to remove any moisture and residual wax, and to sinter the mold. The mold is preheated to allow the metal to stay liquid longer to fill any details and to increase dimensional accuracy.
  • Pouring: The investment mold is then placed cup-upwards into a tub filled with sand and be poured.
  • After treatment: The shell is then hammered, media blasted, vibrated, waterjeted, or chemically dissolved to release the casting. Further actions like weld repairing,grinding, shot blasting,CNC machining, electro plating will be taken to get a final cleaned precision casting part.

Industries involved:

Pumps
Pipe Fittings & Valves,turbine
Auto Parts
Machine Parts
Marine and Oil
Mechanical Investment Castings

Material(SS) Stainless Steel: CF3M (AISI 316L), CF8M (AISI 316), CF8 (AISI 304)
Material(CS) Carbon Steel: CD4MCu, SCS16, SCS14, SCS13, 1.4408, 1.0619, WCB, 420


Winnington was established in 2000, specializing in manufacturing of stainless steel castings.

Supported by nearly 500 staffs, Winnington is equipped with a large scale of foundry and CNC machining equipments, to cater to the need of growing stainless steel castings business and meet an annual production capacity of 3,000 tons for investment casting. Besides, we have advanced inspecting instruments such as Spectrometer, Metallographic Microscope, Tension Tester, and Impact tester for Chemical & Physical Analysis, and 2D projector, CMM to assure dimensional precision of stainless steel castings . We were certificated with ISO9001:2008,PED/AD2000 by TUV.

During the past years, we have manufactured more than 3300 types of stainless steel castings, which are widely applied in Auto Parts, Construction Hardware, Marine Hardware, Pumps & Valves, Machine Parts and other industries.


One-stop Services


Design Assistance

We assist our customers with concepts, estimating manufacturing costs, manufacturing techniques and material considerations. We are able to participate in upgrading, redesigning, re-evaluating or modernizing existing products to increase performance and/or reduce manufacturing costs.

Material sourcing

We provide material sourcing both oversea and in local market, helping customer to source the most suitable material at its best costs.

Testing and Inspection

We provide a number of testing and inspection services including ultrasonic inspection, magnetic particle inspection, material hardness and/or material properties testing.

Tool Making

With in house expertise and tool shop, we have the complete engineering team to create molding / tooling necessary for production

Secondary Machining

We are equipped with High-precision CNC lathe/milling center to process the interior and exterior of various types of curved surfaces such as cylinder, cones, contrate, chamfer, bevel edges, screw thread, milling holes and boring holes, while conforming to the JB/T8324.1-96 Standard.

Surface Finishing

We provide customers with various surface finishing treatments, including mirror polishing, passivation, sand blasting, shot blasting, barrel finishing and vibratory finishing. To meet the growing needs of our customers, special treatments may also be arranged.



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