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Winnington Casting CO.,LTD  

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valve body Investment Casting Parts 

Place of Origin: Zhejiang, China (Mainland) 
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  • Material:CF8M.
  • Process: Silica Sol Lost wax casting;
  • Wax type: Medium temperature wax;
  • Weight: various from 1kg~10kg;
  • Certificates of Chemical Compositions and Mechanical Properties will be provided
  •  Casting will be supplied in as cast or heat treated condition in accordance to relevant material standard

 

 

 Description:

 

 

Brife description of investment casting process:

 

  • Wax mold 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: Feeding the entire mould with molten wax, and 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.

 

 

Applications:

 

Pumps body and impellers,

Valves body and components,

Pipe Fittings

Automotive

Machine assembly parts

Marine and Oil

Mechanical parts

 

 

Specifications:

 

Maximum Casting Size

500*500*350mm

Standards

ASTM,JIS,DIN,BS,MIL

Casting weight

10g~80kg

Wall thickness

1.5-2mm Min

Casting process type

silica sol lost wax casting

Machining

CNC machining,CNC lathe

Surface finish

electro polishing, satin, hand polished, pickled, zinc plating

Tolerances

Raw Casting tolerances in drawing are according to DIN VDG-Merkblatt P-690; Dimension less than or equal to 24mm will in accordance to D1 standard; Dimension greater than 24mm will in accordance to D2  standard

 

 

Competitive Advantage:

Design Assistance

We assist our

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 Ms. Sophia Peng

Tel: 86-752-2652780
Contact to this supplier

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Company Info

Winnington Casting CO.,LTD [China (Mainland)]


Business Type:Manufacturer
City: Huizhou
Province/State: Guangdong
Country/Region: China (Mainland)

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