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Carbon steel is a ferrocarbon alloy with a carbon content of 0.0218%~2.11%, also known as carbon steel. It also contains a small amount of silicon, manganese, sulfur and phosphorus. Generally, if the carbon content in carbon steel is larger, its hardness and strength will be higher, but its plasticity will also be lower. Stainless steel is short for stainless acid resistant steel, which is resistant to air, steam and water
Published on: February 27, 2023 Clicks: 11
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Hello, everyone. I believe you all know that most of the ductile iron manhole covers currently laid on the road are ductile iron manhole covers, which depends on the addition of ductile iron, so that the manhole covers have a variety of superior properties. The specific advantages of ductile iron manhole covers have been told before, so I won't say much about them here. Friends who haven't seen them can read the previous articles, Okay, let's get down to business
Published on: December 1, 2022-12 Number of hits: 11
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Hello, as the leading manufacturer of nodular cast iron manhole covers, we must set an example. This issue brings you an article about the factors of the thickness of nodular cast iron manhole covers. We see many nodular cast iron manhole covers and resin composite manhole covers every day. Today, let's talk about two types of manhole covers. Let's have a look with me, Let's take a look at the thickness standard of nodular cast iron manhole cover&
Published on: December 1, 2022-12 Number of hits: 11
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1. It is required to have sufficient strength and certain rigidity. The inner wall surface of the pipe is smooth, reducing the water flow resistance, having certain corrosion resistance, having sufficient airtightness, easy processing, and economy 2. Common pipes (1) Concrete pipes and reinforced concrete pipes
Published on: December 1, 2022-12 Number of hits: 12
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The implementation of this plan will greatly promote the construction of "beautiful villages" in China, and also provide a rare opportunity for the development of our plastic manhole enterprises and even the plastic pipeline industry. In addition, the population density and living habits between regions will affect the selection and use of inspection wells. In the face of this rare opportunity, plastic inspection well enterprises must make full technical preparations. At present, China Plastics
Published on: December 1, 2022-12 Number of hits: 7
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According to the plastic manhole manufacturer, with the deepening of urbanization in China and the continuous implementation of rainwater and sewage diversion transformation, the urban underground drainage pipe network has been rapidly developed and continuously improved. According to statistics, at present, the annual growth rate of drainage pipelines nationwide is 10%. According to the municipal development speed and supporting proportion, it is predicted that in a city with a population of 500000, the annual demand for inspection wells is about 10000 sets
Published on: December 1, 2022-12 Number of hits: 7
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Most of the well seats of plastic inspection wells are molded by one-time injection molding, and the connection of changing pipe diameter and angle is achieved by reducing joints, angle changing joints, rubber sealing rings and other accessories. The plastic manhole is equipped with manhole cover, shaft and relevant accessories. The road load acts around the manhole through the manhole cover and well seat, avoiding the damage of road load to the manhole. The well seat floats up and down
Published on: December 1, 2022-12 Number of hits: 6
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The plastic manhole is a new type of environmental protection profile. Its material is high-density polyethylene plastic, which is non-toxic and tasteless. It has the advantages of acid and alkali resistance, corrosion resistance, aging resistance, and long service life. It can be recycled after use, and has good sealing performance. It can prevent rainwater and sewage leakage, prevent groundwater pollution, and belongs to chemical environmental protection building materials, Comply with national environmental protection policies and
Released on: November 22, 2022-12 Number of hits: 9
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The first is to determine the sales target. No matter what you sell, you need to determine the sales group. A clear positioning for this is also a prerequisite for good sales. Make a pre-sales plan. We should make a plan in advance before promoting our products. The so-called "know yourself and know your enemy" can ensure success in every battle. Therefore, it is particularly important to make a plan before selling.
Published on: November 10, 2022-10 Number of hits: 8
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Most of the well seats of plastic inspection wells are molded by one-time injection molding, and the connection of changing pipe diameter and angle is achieved by reducing joints, angle changing joints, rubber sealing rings and other accessories. The plastic manhole is equipped with manhole cover, shaft and relevant accessories. The road load acts around the manhole through the manhole cover and well seat, avoiding the damage of road load to the manhole. The well seat floats up and down
Published on: October 18, 2022-18 Number of hits: 20
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1. The ductile iron cover plate has the characteristics of acid and alkali resistance, corrosion resistance, wear resistance, vehicle rolling resistance and long service life. Generally, it can be divided into circle and square according to shape. 2. Anti theft of nodular cast iron cover plate: no recycling value, natural anti-theft; According to the customer's needs, a locking structure is set to realize the property in the well
Published on: October 8, 2022-17
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Item 1: Inspection well pit and foundation 1. The inspection well pit shall be excavated at the same time as the double wall corrugated pipe trench. During excavation, the main line of the inspection well base shall be on the same axis as the pipe in the double wall corrugated pipe trench. The inspection well pit slope is consistent with the double wall corrugated pipe trench slope. During the excavation of the inspection well pit, the over excavation of the foundation soil shall not be disturbed; If the foundation soil is disturbed, it shall be drained according to the current
Published on: September 27, 2022 Clicks: 21
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Precautions for the selection of water pipes for municipal works 1. In the construction of municipal works, it is necessary to first consider the specific conditions of the construction site, compare the advantages and disadvantages of various pipes after consulting professionals, and select appropriate Yajie pipes according to local conditions to ensure the quality of municipal works; 2. Overall consideration of municipal engineering Municipal engineering is a big project
Published on: September 13, 2022 Clicks: 24
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It is strictly prohibited to put flammable and explosive materials such as oil or chemicals around the inspection well; 2. Whether placed in the factory warehouse or in the shed on the construction site, the site should be equipped with fire-fighting equipment or fire prevention measures; 3. The inspection shaft should be placed in a place with good ventilation performance and away from open flames and heat sources; 4. According to the construction needs, when the product is temporarily placed in the open field
Published on: August 26, 2022 Number of hits: 8
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1. The distance between the plastic inspection well and the rainwater inlet shall be 20~50m. The number of connecting pipes connected in series shall not exceed 3. The length of the connecting pipe at the rainwater inlet shall not exceed 25m. 2. When the longitudinal slope of the road is greater than 0.02, the gutter inlet spacing can be greater than 50m, and its type, number and layout shall be determined according to the specific situation and calculation. 3. Gutter inlet
Published on: August 11, 2022 Clicks: 14
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Before installation: carefully check whether there is any damage in the process of loading, unloading, transportation and stacking, and timely remove the damaged, cracked, deformed and other defective pipes. The flexible joint sealed with flexible packing should be used for the connection between the manhole and the pipeline, and the specific structure should be in accordance with the design requirements. Attention shall be paid to trench excavation and foundation construction: 1. The clear width of trench bottom should be based on the outer diameter of HDPE double wall corrugated pipe
Published on: July 29, 2022 Clicks: 14
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Since ancient times, floods have been threatening our lives. When floods occurred in ancient times, hundreds of thousands or even millions of people were forced to leave their homes, many of whom lost their lives and caused incalculable losses to individuals and the country. Even today, with advanced science and technology, people are powerless to deal with floods. If you want to deal with the flood, you can only prevent it from forming scale
Published on: July 29, 2022 Clicks: 13
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1. Before installation, the well cover foundation shall be neat and firm, and the inner diameter, length and width shall be determined according to the size of the well cover. 2. When installing the composite well cover on the cement pavement, pay attention to the use of concrete pouring on the masonry of the wellhead, and establish a concrete protective ring around the periphery for maintenance for about 10 days. 3. When installing the composite well cover on the asphalt pavement, attention should be paid to avoiding direct mechanical construction
Published on: June 17, 2022 Clicks: 41
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External influence of water pipe system The pipe system ensures that the flowing water is not affected by pollutants and other harmful substances, but; Some hazards come from the pipeline itself. For example, in the pipeline made of metal pipes, when water and oxygen interact with steel or iron, they will form corrosion and rust, thus polluting the water supply. In serious cases, the damage will weaken the pipeline structure and lead to pipeline rupture
Published on: June 17, 2022 Clicks: 41
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1、 At present, concrete manhole types are commonly used in China. (a) The utility model is characterized in that: a horseshoe shaped necking ring is used; Combination of upper and lower chambers; Independent bottom plate of lower chamber; A round hole is opened on the lower well chamber to connect with the pipeline. (b) Features
Published on: June 2, 2022 Clicks: 37
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