DAT Group Ductile Iron Manhole Cover with Hinge and Lock
- Ref Price:
-
- Loading Port:
- Dalian
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 120 set
- Supply Capability:
- 4000 set/month
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Specification
Our Company
We take pride to introduce ourselves as the leading manufacturer and professional supplier of various Ductile Iron Manhole covers in China with total annual capacity 50,000 MT.
CNBM manhole cover regard quality as the essential factor leading to successful business. After years of efforts, CNBM manhole cover have built up great reputation in terms of quality and service among domestic and overseas customers.
Our Services
1. Sample is available for free.
2. OEM and ODM are welcome.
3. Free charge of design labels and cartons.
4. Professional technical support with free charge.
5. After the cooperation: Any of your problem will be solved within 24 hours.
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.
Specifications
Double triangle ductile iron manhole cover
1.Standard:ISO 9001 EN124 D400
2.Service:OEM
3.High quality
4.Made of ductile
Advantages
Good compressive, bending and impact strength, anti-corrosion, not rust, long service life (at least 30 years).
The quality meets the same kinds cast ion manhole covers but the cost is 30% lower than.
Contain no metal and no recovery value, anti-theft.
FAQ
1. What is your products advantage?
A. All kinds of size as customer's requirements;
B. Small quantity trial order is welcome
C. Customized design is available and free, Such as Color, Logo, Panel, Load and Dimension etc.
D. Quality control and promptly delivery
E. Good after sales service
2. What is your payment?
T/T, L/C, D/P Western Union or as customer's requirements.
3. How about the shipment?
A. Small quantity you can choose by air
B. Less than one container you can choose LCL shipment by sea
C. One container or more than one container you can choose FCL shipment by sea.
- 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!
- Usually after rusting,Did you peel it?If it isNeed to do film processingIf notPlease look for the coating factoryBetter paint (such as epoxy ester, etc.)
- 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
- Q: Casting parts need to be subjected to the kind of heat treatment after the weldment is finished
- This is difficult to say, the key is to see the specific parts and components, the final mechanical performance requirements.For example, gray cast iron, usually graphite annealing, to heat treatment annealing, surface quenching and so on, ductile iron can be a variety of annealing, normalizing, quenching and isothermal quenching, surface treatment, chemical treatment and so on, in a word, heat treatment of steel can usually, nodular cast iron can do. Malleable cast iron and vermicular cast iron are often subjected to graphitization annealing and stress relieving annealing, while wear-resistant cast irons often undergo quenching + low temperature tempering, and so on.Welding is the case, such as bearing steel welding must be quenched + low temperature tempering, machine spindle welding (repair welding) must be quenched and tempered treatment, and so on. Of course, if it is a general weld, there is no need for heat treatment or, at most, stress relieving annealing.
- Q: What are the casting parts processing engineering?
- According to the classification of process methods, sand casting and special casting.
- Q: Casting parts have poor surface finish. What sand is used to make them?
- Manual coal dust, clay sand is a little worse. Mechanical styling is not bad either.
- Q: For example, casting parts contain many holes, inclusions and other defects, the size and the number of holes exceed which limit is not qualified
- For example, the castings shall be in accordance with the requirements of the second types of castings in the technical requirements for aluminum alloy castings of GB/T9438-1999;
- Q: How to distinguish the forging parts and casting parts accurately
- Distinguish from scopeShanghai Zhejiang forest auto parts experts pointed out that the forging process can eliminate cast loose, metal welding holes, so an important part of high load working conditions, severe machinery, in addition to relatively simple shapes can be rolled plates, profiles or welded parts, the forging process. Because of its low cost and good economy, casting parts processing is widely applied and belongs to the basic process of modern machine building industry.
- Q: Where is the precision casting factory?
- Shandong, DongyingThe birthplace of precision casting
- Q: In the design of casting steps and precautions, for casting design, we have what experience?.
- (3) to prevent generating white grey cast iron, in addition to taking measures from the process, must make the wall thickness is not too thin (some sources indicate that the corner wall thickness above 15mm, metal type casting must be in the corner, for Aluminum Alloy, magnesium alloy casting casting casting Create fillet should not be less than 3-4m, for casting round cast iron, copper alloy mould casting can see table 1.1-32 selection; (5) because of the metal and the core without let, for the convenience of the casting is taken out and the draw out type, slope casting casting should be suitably large than sand casting metal casting. General 30%-50%, it should be pointed out that in addition to the height of the slope of casting size and alloy type, wall, is also related to the casting surface position, where the cooling and contraction and metal surface of casting surface can be designed from the tendency of small inclination, while casting shrinkage tend to be pressed on the surface of metal castings the type should be given greater inclination, all kinds of metal type alloy casting casting casting.
- Q: How to solve casting defect casting?
- Different defects, different solutions, some shortcomings, the current domestic level can not be resolved
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DAT Group Ductile Iron Manhole Cover with Hinge and Lock
- Ref Price:
-
- Loading Port:
- Dalian
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 120 set
- Supply Capability:
- 4000 set/month
OKorder Service Pledge
OKorder Financial Service
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