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Ductile Iron Casting Butterfly Valve Disc

Ductile Iron Casting  Butterfly Valve Disc

Ductile Iron Casting Butterfly Valve Disc

OEM Metal Casting Valve Disc Plate

Casting Process:Sand Casting

Unit Weight of Casting:2.0kg

Application:Valve

Surface Treatment:Shot Blasting + CNC lathe

Heat Treatment:Annealing

No Min Quantity

Payment Term:T/T OR LC

 

New products

The Butterfly Valve Disc

A butterfly valve is from a family of valves called quarter-turn valves. In operation, the valve is fully open or closed when the ductile iron butterfly valve disc is rotated a quarter turn. The "butterfly" is a metal disc mounted on a rod. When the valve is closed, the cast iron valve disc is turned so that it completely blocks off the passageway.

 

OEM & ODM Cast Iron Butterfly valve disc for industry from Hengchang Foundry

Hengchang is the leading producer of gray, ductile iron in China, melting more than 6000 tons per year, with more than 15 years experience. Custom butterfly valve disc are made of Ductile iron. Ductile iron, also known as ductile cast iron, nodular cast iron, spheroidal graphite iron, spheroidal graphite cast iron and SG iron, is a type of graphite-rich cast iron discovered in 1943 by Keith Millis .While most varieties of cast iron are weak in tension and brittle, ductile iron has much more impact and fatigue resistance, due to its nodular graphite inclusions.

Ductile iron is not a single material but part of a group of materials which can be produced with a wide range of properties through control of their microstructure. The common defining characteristic of this group of materials is the shape of the graphite. In ductile irons, graphite is in the form of nodules rather than flakes as in grey iron. Whereas sharp graphite flakes create stress concentration points within the metal matrix, rounded nodules inhibit the creation of cracks, thus providing the enhanced ductility that gives the alloy its name. Nodule formation is achieved by adding nodulizing elements, most commonly magnesium (magnesium boils at 1100 °C and iron melts at 1500 °C) and, less often now, cerium(usually in the form of mischmetal. Tellurium has also been used. Yttrium , often a component of mischmetal, has also been studied as a possible nodulizer.

Some smaller iron casting parts include components as gears, pulleys, crankshafts, connecting rods, and propellers. Larger applications include housings for large equipment and heavy machine bases. Iron casting is also common in producing automobile components, such as engine blocks, engine manifolds, cylinder heads, transmission cases, and a full array of marine, agricultural, construction, industrial and Rail parts.

Machined casting products are used in several industries such as: Automotive, marine, agricultural, construction, industrial, earth moving, highway, and HVAC.

 

Grey & ductile iron casting

- weight: 0.5-2000KG

- technology: Green sand, resin sand, vacuum casting, shell molding

- production line: DISA line, auto molding line, manual molding machine

- application: Pump, valve, automobile, agriculture, municipal, sports, metallurgy other mechanical field 

 

Vacuum moulding line:

- available material: grey iron, ductile iron and alloy steel

- flask dimension:  1,000 mm × 800 mm × 500 mm

- weight scope: 0.5-100kgs

 

Resin Sand moulding line:

- available material: grey iron, ductile iron and steel

- flask dimension: 4200*4200*2000mm

- weight scope: 10-2000kgs

 

Moulding Autoline:

- available material: grey iron, ductile iron

- flask dimension:

- 508*609*250mm

- 350*450*150mm

- 400*500*180mm

-weight scope:0.2-50kgs

 

Quality Control

1) Spectrographic and manual quantitative analysis

2) Metallographic analysis

3) Brinell, Rockwell hardness inspection

4) Mechanical property analysis

Sample and pilot run will be given 100% inspection during production and before shipment. A sample check for mass production according to ISDO standard or customer requirements will be verified.

 

Our Advantages in Sand Casting Field:

• Over 15 years of experience in sand casting, shell molding casting and machining technology.
• Dimensionally accurate cores for complex internal contours.
• Strictly control the raw materials.
• Quality management throughout the production process and maximum process reliability.

Available Grade of Ductile Iron in our Foundry: QT400-15, QT400-18, QT450-10, QT500-7, QT600-3, QT700-2, QT800-2, 60-40-18, 65-45-12, 80-55-6, 80-55-06, 100-70-03

Hengchang is producing various ductile iron casting products for overseas customers in Japan, USA, Canada, Germany, Danmark, Russia and Dubai.

 

Butterfly Valve Disc

 

 

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