• Casting CNBM ductile iron manhole cover with superior quality for mining System 1
  • Casting CNBM ductile iron manhole cover with superior quality for mining System 2
  • Casting CNBM ductile iron manhole cover with superior quality for mining System 3
  • Casting CNBM ductile iron manhole cover with superior quality for mining System 4
  • Casting CNBM ductile iron manhole cover with superior quality for mining System 5
  • Casting CNBM ductile iron manhole cover with superior quality for mining System 6
Casting CNBM ductile iron manhole cover with superior quality for mining

Casting CNBM ductile iron manhole cover with superior quality for mining

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
100 set
Supply Capability:
4166 set/month

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Product Description


product name: ductile iron manhole cover

1. material: cast iron, ductile iron, malleable iron

2. duty: EN124 A15 B125 C250 D400 E600 F900

3. color: black green gray and etc.

4. design: we can provide OEM service, according your design to do moulds, surface and logo.

5. application: expressway, sidewalk, park, garden, municipal pipeline, telecommunication, water and electrical power projects.

Casting CNBM ductile iron manhole cover with superior quality for mining


Specification



Item No.ClassClear Opening(mm)Frame Size(mm)
TD1221D4001220*6751378*831
TD1222D4001220*6751370*830


Advantages

1.High Intensity

It adopts macromolecule complex material and reinforcing steel bar moulded by high temperature and press at one time.

2.Durable

Acid-alkali and corrosion resistance; anti-rust; insulation; weatherability; excellent anti-pressure capability.


Packaging & Shipping



Packaging: Details Pallet with bubble film, Carton or with pallet,

 

Delivery Detail: 8 days if your order is 20"container

 

Casting CNBM ductile iron manhole cover with superior quality for mining

Casting CNBM ductile iron manhole cover with superior quality for mining

Casting CNBM ductile iron manhole cover with superior quality for mining


FAQ


1.Can I get free samples?

A: Yes, we can provide you the free sample, but you need to bear their own delivery costs.

2.Can I request to change the form of packaging and transportation?

A:Yes,We can change the form of the packaging and transportation according to your request, but you have to bear their own costs incurred during this period and the spreads.

3.Can I request to advance the shipment?

A: It should be depends on whether there is sufficient inventory in our warehouse,

4. Can you provide a discount for your goods?

A: Yes,we can offer you a 10% discount if you place an drder of 300 sets one time...

Q: our factory now produces steel castings in the use of polishing directly after spraying processing, but the powder sprayed 15But the spray powder touched off what is the reason we are not very strict requirements not only need to peel off bubbles can also, because our products are steel castings so we use steam hole sludge put on. Do not know if this spray treatment has no effect to thank friends with us!
Steel parts are not familiar. But after spraying, the powder should be divorced from the adhesive force is too low, try to provide the surface roughness of the casting
Q: Explain the heat treatment effect of casting parts, forging parts and welding parts
The three methods of metal processing have one thing in common. They are hot working, which are different in temperature and range of processing. Ductile cast iron is widely used because of its brittleness and poor impact. Heat treatment of cast iron usually adopts the annealing process, reduce the casting effect: 1 because of the internal stress caused by the thermal expansion and contraction, reduce the deformation after machining, decrease surface hardness, improve machining conditions;
Q: What is the ejection angle of the die casting (Tan Gang)?
Because after the wax, wax parts will have a slight contraction, which is good for demoulding. Many moulds don't do the ejection angle
Q: Casting parts by shot blasting, spray painting, baking after the formation of very small rust spots, how to solve ah?
The first process is very important. Shot blasting must be thorough. The solution is to wipe the surface of the paint with a release. Re shot
Q: In theory, which is more expensive, forging parts or casting parts?
Compared with the price, the product with the same simple structure eliminates the material factorsThe forgings must be more expensive
Q: What are the causes of pitting on the surface of a precision casting?
The quality of the shell surface is out of order. Or shot blasting out of question.
Q: How to distinguish the forging parts and casting parts accurately
To distinguish from the use of materialsForging materials are mainly made of carbon steel and alloy steel of various components, followed by aluminum, magnesium, titanium, copper and their alloys. The original state of the material is rod, ingot, metal powder and liquid metal. The materials needed for casting are mostly metal, wood, fuel, molding materials and so on. In contrast, the forging parts rarely produce dust, harmful gas and noise, etc., and play a more obvious role in environmental protection. Of course, because of this, the price of forged parts on the market is higher than that of castings.
Q: What kind of flaw detector is better for casting parts?
Casting using the detector test, you must first determine the detection process, such as the detection of surface and near surface crack defects, such as casting, recommended by CYD-3000, or CYD-5000 mobile magnetic testing machine for testing.
Q: Which surface is coarser for cast iron or cast steel castings? Why?
The surface of the steel is more rough, because the coating sand cast steel cast iron particles compared with graphite coating degree, the other one is to get a better air permeability and collapsibility of sand, the compaction degree is smaller than iron.
Q: My parts complex, machining costs are relatively high, so want to cast, but the surface needs anodizing, what material will be better?
Yes, the cast aluminium is polarized and gray, but the key problem is to guarantee the quality of the aluminium casting, and the quality of the other aluminium casting is not good.

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