Gold Member Since 2014
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Hebei Mingda International Trading Co., Ltd.

CNC Machining, Investment Casting, Stainless Steel manufacturer / supplier in China, offering OEM Custom Stainless Steel Precision Casting Part, 2017 New Indoor and Outdoor Bicycle Flower Plant Stand, Hand Made Iron Bird Cage for Outdoor Decoration and so on.

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OEM Custom Stainless Steel Precision Casting Part

FOB Price: US $6-8 / kg
Min. Order: 50 kg
Min. Order FOB Price
50 kg US $6-8/ kg
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Production Capacity: 80 Tons Per Month
Transport Package: Carton, Wooden Cases
Payment Terms: L/C, T/T, D/P, Western Union, Paypal

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Product Catalog
stainless steel casting
35 Products
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Basic Info
  • Model NO.: 304, 316, 316L
  • Casting Form Material: Metal
  • Casting Form Usage Count: Permanent
  • Surface Roughness: Ra3.2
  • Standard: Nonstandard
  • Size: According to Your Drawings
  • Specification: SGS
  • HS Code: 7204210000
  • Casting Method: Precision Casting
  • Casting Metal: Cast Steel
  • Surface Treatment: Polishing
  • Machining Tolerance: According to Your Drawings
  • Certification: SGS, ISO 9001:2008
  • Trademark: MINGDA
  • Origin: Hebei China
Product Description

Product description : 

material : stainless steel 304,316,316l

process : precision casting 

dimension : according to your drawings 

surface treatment : polishing ,anodize ,chrome plating ,zinc plating ,nickel plating 

 

Process
 
PRECISION CASTING
Specification1.Material: steel,stainless steel, carbon steel, alloy steel and so on.

2.Standard: ASTM\DIN\BS\JIS\GB.

3.Surface finish: Machining, shot blasting,sand blasting, polishing,painting,etc.

4.Weight: upto 300kg.
Production facility1.Casting facility:sand mixer,moulding machine,electric furnace,box resistance furnace, heat

treatment furnace,shot-blasting machine, sand-blasting machine, medium-frequency induction

furnace.

2.Machining facility: CNC, NC lathe,ordinary machine tools.
Heat treatmentNormalizing/Annealing/Quenching/Tempering.
Test facilityspectrometer, tensile test machine, hardness test machine,impact tester,CMM.
 


the processing of our precision casting 

1.       Process Design:Design the tooling according to customs' drawing or sample, set up the pouring

system with CAE casting simulation software

2.       Mould Fabrication:Transfer the drawing or sample into 3D drawing which is applied to aluminum or

steel mould fabrication

3.       Wax Injection:Mix liquid wax slurry and solid wax together, inject wax into metal mould, fetch it out

after cooling

4.       Wax Mold Assembly:Heat the stainless steel welding knife, weld the wax molds together on the gate

stick according to technically designed

5.       Dipping:The wax molds are dipped into waterglass solution, with surface coated by the solution

6.       Stuccoing:Stucco the dipped wax molds with quartz sand, then dip into induration solution

containing ammonium chloride & magnesium chloride and hang to dry. The whole process repeats 6

times

7.       Wax Removal:Put the thick coated wax molds into wax removal gutter, keep heating. After lost all the

wax only sand shell was left

8.       Sand Shell Preheat:Heat the sand shell in order to strengthen the shell

9.       Casting:Put the raw material into the induction furnace and melt, add with chemical composition per

material spec. After the temperature of molten steel rises to about 1600 degrees, take a pre-pouring

chemical analysis, if approved then pour liquid steel into the sand shell by ladle, make sure the shell is

filled with liquid steel and then cool off, meanwhile take the testing bar for after-pouring analysis

10.   Sand Shell Removal:Make the casting free from sand by shaking

11.   Cutting:Oxyacetylene cut off the castings from gate stick

12.   Grinding:Grind the ingate and defected surface with grinding wheel

13.   Heat treatment:Heat treat the casting by nomalizing, annealing, quench+tempering, induction

quenching, case hardening and Nitriding per material spec

14.   Machining:Machine the castings by CNC according to drawing spec

15.   Final inspection:Test the parts' mechanical properties by tension tester, impact tester, hardness

tester, take NDT with X-ray, UT and M.P.T, final dimension inspection are down by CMM, Measures &

Gauges, etc

16.   Pack & Transport:After rust prevention, pack the parts into plywood or iron case for transportation.

 
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