New designed ductile iron manhole cover for miining in Hebei Province

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

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Product Description:

Product Description


1) Type:round type and Square type,triangle

2) Anti-rust,anti-corruption

3)ISO9001:2008

4)Materials:Ductile iron

New designed ductile iron manhole cover for miining in Hebei Province

New designed ductile iron manhole cover for miining in Hebei Province




 

 

 

Specification




Item No.ClassClear Opening(mm)Frame Size(mm)Frame Height(mm)
CCUC30HKC250200*200300*30034
CCUC40HKC250303*303400*40035


a) Grey cast iron (GG)

Elongation     < 1 %  

Loading             400 – 800 N/ mm² 

Density   7.8 kg/ dm³ 

Property    very hard / brittle 

 

b) Ductile Iron (GGG)

Elongation       2 – 15 %

Loading            700 – 1300 N/ mm²

Density   7.8 kg/ dm³

Property   deformable



Advantages


The quality meets the same kinds casting iron manhole covers but the cost is 30% lower than other companies.

New designed ductile iron manhole cover for miining in Hebei Province


Packaging & Shipping



Packaging: Details Pallet with bubble film, Carton ,

 

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

 New designed ductile iron manhole cover for miining in Hebei Province



FAQ



1. How about your price?

     A: As one of famous manufacturers of Ductile iron products inChina, Our prices are very favorable and competitive. The customers from all-over the world.

2.How about your delivery time?

  A:Within 30 days after your placing your order.

 


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Q:Explain the heat treatment effect of casting parts, forging parts and welding parts
2 improve the crystal structure, enhance the formation and stability of spherical carbon crystal;Forgings are generally stress bearing members, and most of them are made of high strength medium carbon steel (alloy), which is formed by forging and fine crystalline. After the shell is annealed or quenched and tempered, the mechanical properties of the shell are more superior, and it has better strength and better elasticity;Welding materials.
Q:Casting pieces of plastic processing requirements can not fall off the skin,
Cast iron has not been done, if it is iron, then in the spray before going through strict pretreatment, the surface can not have a little oil dust
Q:What is the difference between casting and stamping parts?
Cold stamping is generally no longer done by cutting, or only a small amount of cutting is required. The precision and surface state of hot stamping parts are lower than those of cold stamping parts, but they are better than those of castings and forgings, and the amount of cutting is less.Stamping is mainly based on process classification, can be divided into separation process and forming process two major categories.
Q:Why do casting parts have air holes?
There are many reasons for casting porosity, mainly due to:1. smelting process is unreasonable, metal liquid absorbs more gas;2. the gas in the mold invades the metal liquid;3. from the mold is more water brush, core dry;4. the casting has poor ventilation;5. ladle tools are not dry.Wait。
Q:How do casting parts remove stress?
Annealing treatment, according to different casting annealing treatment, eliminate thermal stress, if need to restore hardness or increase hardness, and then quenching treatment
Q:What do you mean by "proofing" in the casting? Do you charge for the proofing?
Proofing refers to making the first sample to confirm to the customer
Q:The casting defects of pores, trachoma how to repair?
Airhole above 2mm recommended LT101 casting defect repair agent. If repair quality requirements, high availability LT111 iron repair agent, LT112 steel repair agent, LT113 aluminum repair agent, LT114 copper repair agent.
Q:What reason is the bronze statue choking fire?
The casting process in boiling phenomenon, is the setting of the exhaust hole positioner position or number is not reasonable, the air cavity can not be discharged, overwhelmed by a material inlet, reflux, change mould, sincerely help you look forward to adopt,
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: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 angleEspecially deep hole, and customers to discuss, generally take 0.3-1 degrees is enough

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