Steel Casting Foundry Stainless Steel Casting

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China Mainland
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Description

Product Detail

Steel Casting Foundry Stainless Steel Casting Specification

Casting process: alkaline phenolic resins

Weight: 48 KGS

Min. wall thickness: 8mm

Chemical Composition:

C:0.32

Si:0.8

Mn:0.95

S:0.011

P:0.026

Cr:25.5

Ni:12.1

Mechanical property:

Tensile strength: 610MPa

Tolerance grade: CT11

Technical Key Points

Ø Take effective measures to reduce the casting temperature to eliminate crack defects, at the same time reducing the temperature drop of molten steel to ensure the filling capacity of steel. Main technical measures: one is to directly reduce the casting temperature, the original pouring temperature of 1600 ? -1610 ?, and now strictly control the temperature at 1570? -1580 ?. Second, to reduce the temperature drop of molten steel. After the mold are assembled, blow heat wind 150 ? -200 ? to the cavities for 60 min-90min, and stop blowing 5min before pouring.

Ø Blowing argon to the steel to reduce inclusions. Take 2t ladle as example, when tapping the molten steel, gas pressure should be strictly controlled below 0.1Mpa to prevent the new Oxygen absorption effect, which may be caused by Violent turbulence if the blowing gas is with high pressure. Argon blowing process can effectively reduce oxygen content of the steel by 10% -20%, the effect is very obvious. after tapping of the high temperature molten steel, the steel must be sedated for 5 minutes, thus the gas solubility in steel will reduce and some gas will escape from the steel, carrying the inclusion inside rise to the surface of the steel, thus the steel are cleaned.

Ø Apply bottom injection open gating system, set the section area ratio of the pouring system as:

?A vertical:?A horizontal:?A inner =1.0:(0.8-0.9):(1.1-1.2)

Ø Inner runner section area ?A inner=K ????-32925.png K-flow rate,take value 0.78 G- metal liquid total weight(Kg)

The minimum wall thickness of cast iron and cast steel during sand casting (Unit: mm)
Alloy types		The maximum profile of the casting
Alloy types		< 200	200-400	400-800	800-1250	1250-2000	> 2000
Cast iron	Grey cast iron	3-4	4-5	5-6	6-8	8-10	10-12
	Inoculated cast iron	5-6	6-8	8-10	10-12	12-16	16-20
	ductile cast iron	3-4	4-8	8-10	10-12	12-14	14-16
	high phosphorous cast iron	2	2	/	/	/	/
	Malleable iron	The maximum profile of the casting
		<50	50-100	100-200	200-400	400-600	600-800
		2.5-3.5	3-4	3.5-4.5	4.0-4.5	5-7	6-8

Parts of Customers

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Our Service

Ø We provide free casting technical service and application problems.

Ø Customers can visit the factory free of charge.

Ø We offer free process design and validation.

Ø We can guarantee the punctual delivery of the sample and the goods.

Ø We will follow up the order process regularly and inform the clients in time.

Ø All after-sales service requirements will be answered within 24 hours.

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FAQ

1. What kinds of material you can produce?

A: The dominant material we cast is stainless steel, duplex stainless steel, carbon steel, ductile cast iron, aluminum, copper, bronze, brass and alloy metal etc.

2. Can you provide machined finished parts?

A: Yes, we have our own machining center, we have machines for different machining process and CNC machining center.

3. Can you guarantee the traceability of your products?

A: Regular products: On-site inspection record and FG Test report will be kept more than 3 years.

Important products: On-site inspection record and FG Test report will be kept more than 5 years, applying processing card system, and make sure one card for each piece, thus to keep each piece of products are traceable.

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Wuxi Lingtong Casting Co.,Ltd

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