The advantages of nodular cast iron manhole covers and how the wholesale sales price is affected
The cast iron manhole cover has light weight, high strength, good toughness, corrosion resistance, fatigue resistance, and suitable cost. Compared with the same size and size of the gray cast iron manhole cover, it has better usability, good drainage effect, and long service life long.
Ductile iron manhole covers are the mainstream products that we are currently applying in the market, and many large-scale drainage projects have their applications. With the current development, we still have a lot of friends who are concerned about the price of our manhole covers. What affects the prices of ductile iron manhole covers sold in the market?
Factors Influencing the Price of Ductile Iron Manhole CoversIn addition to the choice of raw materials, the price of cast iron manhole covers is also inseparable from the casting process. The casting process mainly includes the following parts:
1. Reasonable forging technology. According to the structure, weight and size of the cast iron manhole cover, the characteristics of forged alloys and production conditions, the appropriate parting and appearance, core making methods, and reasonable setting of forging bars, cold iron, riser and pouring system, etc. The quality of the manhole cover.
2. The quality of raw materials. Ductile iron manhole covers are used as shaft parts, such as diesel engine crankshafts and connecting rods, which require high strength and comprehensive mechanical properties with good resistance. Cast iron manhole covers with high raw material quality are generally more expensive.
3. The technical planning of cast iron manhole covers. When planning, in addition to determining the working conditions and metal material properties, the shape and size of the cast iron manhole cover, we must also consider the perspective of forged alloys and forging technical characteristics to prevent or reduce the segregation of the composition of the cast iron manhole cover Defects such as deformation and cracking occur.
Ductile iron manhole covers can be used for a long time. What are the advantages of this product? It can survive in the storm.
Product Advantages of Ductile Iron Manhole CoversAnti-sound, no noise, meet environmental requirements
Each set of nodular cast iron manhole cover of our company is processed through three procedures to make the contact surface between the manhole cover and the well circle zero, which makes the two 100% seamless fits, and eliminates the noise generated when the vehicle passes.
Strong anti-fall load
During the experiment, the nodular cast iron manhole cover was subjected to a pressure of 500KN without damage, and the bearing capacity was much better than the national standard (360KN). At the same time comply with the EU EN124 normative request. Can be crushed by various heavy trucks, effectively avoiding accidents caused by falling manhole covers.
The most important thing is that the exquisite casting process makes the product lines clear. The outer surface of the manhole cover has a common anti-slip pattern to increase friction and prevent pedestrians from slipping due to rain, snow and ice cover.
The appearance design can stop changing according to the customer's request to meet the different needs of the customer, and then spray black asphalt to make the appearance of the product bright, clean, oxidation-resistant and corrosion-resistant. 5 High quality material uses ductile cast iron QT500-7 material, which improves the density of the product, which makes the product have a strong compression resistance. Bend resistance, impact resistance, heat resistance, cold resistance, wear resistance, acid and alkali resistance, aging resistance, non-deformation, etc. characteristic.
The important point is that the nodular cast iron manhole cover can be anti-theft. No matter what kind of manhole cover, anti-theft is an important point. After the development of the nodular cast iron manhole cover in recent years, manufacturers have gradually achieved the ultimate anti-theft system.