Resin Sand Castings Process

Resin Sand Castings Process

Large Iron Castings Resin San Casting Process High Quality Castings Supplier Product Description and Process Large Iron Castings Resin San Casting Process High Quality Castings Supplier Production process: green sand casting process pre-coated sand casting process resin sand casting process...

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Large Iron Castings Resin San Casting Process High Quality Castings Supplier  

Product Description and Process

Large Iron Castings Resin San Casting Process High Quality Castings Supplier


Production process:

green sand casting process

pre-coated sand casting process

resin sand casting process

Weight range: from 50 gram to 2,000 kilograms for ductile iron casting product


Machining process:

CNC machine, machining center, lathe, mill machine, drill machine, etc.


Surface treatment process:

paint coating, electrophoretic paint coating, electrogalvanizing coating, black oxide coating, phosphate treatment,  powder coating, etc.


Product  Material and Uses

Normally production with gray iron HT200, HT250, ductile iron 65-45-12, 60-40-18, 80-55-06, 80-60-03, 100-70-03, etc.

The ductile iron casting products are widely used for Auto-cars, trains, trucks, vehicle components, mining machinery components, agricultural machinery parts, textile machinery parts, construction machinery parts, etc.


What is Ductile Iron Used For? (Applications)

Ductile iron is great for use where you need strong metal with wear resistance.

Here is a sample list of things made from or contain ductile iron:

Pipe and pipe fittings (almost 50% of ductile iron sold in the US is for pipe and fittings)

Axles

Connecting rods (like in engines)

Crankshafts

Cylinders

Disc brake calipers

Gears and Gear Boxes

Housings and manifolds

Hydrostatic Barrels

Idler arms

Large Machines

Machine Tooling

Military uses

Piano Harps (the part that holds the strings of a piano)

Spindle supports

Steering knuckles

Suspension system parts

Truck axles

Valves (especially high-pressure valves)

Wheel hubs

Yokes for power transmission


What is resin sand casting?

Resin sand casting process is a kind of floor molding process by using the resin sand as the molding material. Resin sand is a kind of mixture of quartz sand and resin. After mixing and burning, the resin sand could become very hard and solid, so we called it as the hard mold. The iron casting made by resin sand will be usually called as resin sand casting.


What is the character of resin sand casting?

Since resin sand mold is very hard and solid, and it has smooth surfaces, so the resin sand casting has more accurate dimensions and better surface smoothness, and less sand residual and casting defects on the surfaces and inside.


What kind of castings are suitable for resin sand casting process?

Because the resin sand is expensive, and lower production rate than green sand casting process, so it is more suitable to produce larger iron castings, such as the castings with weight from dozens of kilograms to several tons. By the way, resin sand casting process is not suitable to produce steel castings since steel castings need higher air permeability.


What is the disadvantage of resin sand casting process?

One disadvantage is the low production rate. Since the resin sand needs to be mixed and burning, it needs more production time. Another is the high production costs. The resin price is increasing much recently, so just the special structure products can choose this casting process for production.


While there are many different ductile iron specifications, foundries routinely offer 3 common grades

Physical and Mechanical Properties

ASTM A536,

Grade 60-40-18

ASTM A536,

Grade 65-45-12

ASTM A536,

Grade 80-55-06

Tensile Strength, min, psi

60,000

65,000

80,000

Tensile Strength, min, MPa

414

448

552

Yield Strength, min, psi

40,000

45,000

55,000

Yield Strength, min, MPa

276

310

379

Elongation in 2 in. or 50 mm, min %

18

12

6

Density lb/in 3

0.256

0.256

0.256

Density g/cm3

7.1

7.1

7.1

Melting Temperature (Degrees F)

2,100 – 2,190

2,100 – 2,190

2,100 – 2,190

Melting Temperature (Degrees C)

1,150 - 1,200

1,150 - 1,200

1,150 - 1,200

Compressive Strength Ksi

429

429

429

Compressive Strength MPa

2960

2960

2960

UNS

F32800

F33100

F33800


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