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  • Ductile manhole cover manufacturers explain the concept of circular design
    Spherical manhole covers can be said to be products that we often see in our lives. The products we have seen are round and square in shape. Are they used in the same way? In today's time, manufacturers of spherical ink covers explain the concept of circular design. Let everyone know more about this, you can continue to browse. Ductile iron manhole covers are a type of nodular cast iron among cast iron products. They are a new type of material. Compared with traditional materials, they improve the mechanical properties of cast iron, especially in terms of plasticity and toughness. By comparison, from the last century 5 ...
  • Rainwater dumplings manufacturers introduce product requirements in the project 2020-03-04
    The application of rainwater dumplings is believed to be well understood by many people and can often be seen in our daily lives. In general, it is set on both sides of the road. The requirements for products are different in different projects. In today's content, the rainwater dumpling manufacturers introduce the requirements for products in the project? Rainwater dumplings are widely used in municipal engineering, especially on roads, which are the products we usually see in this category. The products are mainly welded from some materials such as flat steel or square steel, their appearance is very beautiful, with good drainage effect, for ...
  • How is the shape of nodular cast iron manhole cover 2020-02-10
    Our company is a specialized manufacturer of ductile iron manhole covers. And there are many types produced by our manufacturers. Do you know why the ductile iron well pipes are designed to be round and square? Next, our editor will give us a detailed introduction. Our manufacturers also hope to help everyone. This product of nodular cast iron manhole cover is generally divided into circular and square, and in urban areas, the circular is generally used because the round manhole cover is not easy to tilt, which can better protect the safety of pedestrians and vehicles. The use of circular, mainly considering that the round manhole covers each straight through its center ...
  • Spherical manhole cover solves the problem of theft 2020-01-29
    Spherical manhole cover is a relatively large amount of manhole cover on the modern market. It has a good use effect, and its production technology is continuously improved, which solves the problem that the manhole cover is often stolen. Let's introduce it in detail below. Compared with gray cast iron manhole cover, the nodular manhole cover has improved bearing capacity, and the toughness of the material is relatively difficult to rust. It is mainly used on the main driveway and the road with heavy load. However, the price has also increased, and similarly, it is easy to be stolen because of its recycling value. In order to solve the theft problem, many cast iron manhole covers with locks have been developed. Although the anti-theft problem has improved to some extent, sometimes someone ...
  • What are the effects of using rainwater dumplings ?
    The rainwater rafter is a kind of mesh spacer. Here it refers to the iron fence that blocks the dross slag at the mouth of the sewer. It has excellent corrosion resistance, high strength, high pressure resistance, impact resistance, and bearing capacity. Features. So what effect does it have? Let's introduce it in detail below. The difference between the rainwater rafter and the drainage ditch cover is that the rainwater rafter has holes for quick drainage. The drainage ditch cover is generally without holes, which plays a good role in covering the drainage ditch. The surface treatment methods of rainwater dumplings include: galvanizing, hot-dip galvanizing, spray painting, brushing or dipping to obtain the maintenance layer and dip plastic, among which ...
  • What are the characteristics of nodular cast iron manhole cover?
    Ductile iron manhole covers are a product we often see, so how much do we know about it? What are its characteristics? Maybe we just know it and don't know much about it. Let's introduce its characteristics in detail below. 1. The anti-theft alloy cast iron is casted by non-professionals. The special anti-theft mechanism for the manhole cover fundamentally solves the social problem of the loss of the manhole cover. 2. The noise-free manhole covers are all machined to solve the noise caused by wheel rolling. 3. The geometric design of the non-jump cover is reasonable to ensure that the product does not flip and shift after passing the vehicle. 4. The application range is wide, and the products are in -40 ...
  • Ductile well cover has good stability
    The nodular manhole cover is a manhole cover made of nodular cast iron. The quality of this manhole cover is related to the problem of nodularity. The commonly used coating for processing castings is rust-proof asphalt paint. Of course, the appearance of ductile iron manhole covers is also treated by spraying rust-proof asphalt paint. It has good stability, let's introduce it in detail below. Ductile manhole covers have the advantage that nodular cast iron manhole covers are about 30% lighter than similar types of gray cast iron manhole covers because of their high strength and good resistance. The strength of nodular cast iron is comparable to that of cast steel. Ductile iron has higher yield strength, its yield strength is higher than that of cast ...
  • What is the surface treatment method of rainwater dumplings ?
    As the name suggests, the rainwater dumplings are a kind of drainage device, which is mainly used on our drainage ditch. It plays a very important role, and its appearance is also very beautiful, and it has also beautified our city. So how is it treated on the surface? Let's introduce it in detail below. The surface treatment methods of rainwater dumplings include: galvanizing, hot-dip galvanizing, spray painting, brushing or dipping to obtain the maintenance layer and dip plastic. Hot-dip galvanizing is commonly used, including overseas customers generally recognize this Surface treatment method, because in the ordinary outdoor environment, the service life of hot-dip galvanizing can reach 100 years ...
  • Why nodular cast iron manhole cover gradually replaced traditional manhole cover2019-12-26
    Ductile iron manhole covers are used more and more in our daily life. It gradually replaces our traditional manhole covers. Why is this? What are the characteristics of cast iron manhole covers? Let's introduce it in detail below. Ductile iron manhole covers have excellent weight and strength ratios. Manhole covers made of nodular cast iron can be 20-30% lighter than the same products made of gray cast iron and have good toughness. Ductile iron contains chemical components generally: iron, carbon, silicon, manganese, phosphorus, sulfur, etc., and a small amount of magnesium, rare earth and other nodulizing agents. After making such hard nodular cast iron through complicated manufacturing processes and steps, a nodular cast iron well made ...
  • How is the spherical ink well cover replaced? 2019-12-19
    Ductile manhole covers are often seen by us. It has a lot of functions, beautifying our city, ensuring the normal traffic of our vehicles and pedestrians, etc. Then there will be many unqualified manhole covers, which requires us to replace them. How to replace it? Let's introduce it in detail below. First, the manhole cover to be replaced and the surrounding asphalt or concrete pavement must be removed. The area to be removed is 1.5 × 1.5 meters and the depth is 20cm. The concrete conditioning ring is installed, and the concrete conditioning rings of different heights are fixed on the top of the well as required. Make sure that the top of the concrete conditioning ring is 12-15cm away from the pavement elevation ...
  • The importance of rainwater dumplings in our daily life2019-12-12
    The application of rainwater dumplings in our daily life is very common, and it can be seen everywhere around us. It also plays a very important role and brings us a lot of convenience. Let's introduce it in detail below. Rainwater dumplings have high specifications and their practicability is great, which can play a good anti-theft effect. And the product has a long service life, and it also has very good corrosion resistance and non-rust properties. It is a green and environmentally friendly product, which will not cause any pollution to the environment. It is a protection-free product. Its carrying capacity is also very strong, and the pressure it can carry is very ...
  • What are the advantages of nodular cast iron manhole covers? 2019-12-05
    Ductile iron manhole covers are one of the most commonly used manhole covers in our cities. We have many advantages in using this manhole cover, which facilitates our travels in normal times and also beautifies the city. So what are the advantages of using cast iron manhole covers? Let's introduce it in detail below. 1. High strength, it is made of high molecular weight composite material, has high compressive, bending, impact strength and toughness. After long-term use, the product will not be crushed and damaged, and it can prevent the "urban black hole" accident. 2. Beautiful appearance, exquisite pattern design on the surface of the manhole cover, can beautify the urban environment. 3 ....