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1、 Check that the inner and outer surfaces of the steel mesh skeleton polyethylene composite pipes with good appearance are smooth, without bubbles or pinholes. On the contrary, recycled materials are likely to be added. The internal and external surface of the steel mesh skeleton plastic composite pipe produced with raw materials is uniform and smooth, without pores and roughness. Pipe for adding recycled materials, pipe surface
Published on: March 20, 2023 Number of hits: 7
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What is shot peening? Shot peening is the process of using high-speed sand shot and iron shot to hit the surface of the workpiece to improve the mechanical properties of parts and change the surface state. Shot peening technology can improve the mechanical strength, wear resistance, fatigue resistance and corrosion resistance of parts. It can also be used for trimming, rust removal and residual stress elimination of casting, forging, welding and other surfaces. There are two types of shot peening: general shot peening and stress shot peening.
Published on: March 6, 2023 Number of hits: 6
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In the early days, China mainly used solid clay bricks and reinforced concrete manholes, which consumed a large amount of standard clay, standard coal and other non renewable energy in production, and discharged a large amount of CO2. At the same time, solid clay bricks and reinforced concrete manholes were expensive in transportation, complicated in installation, slow in construction progress, prone to sewage infiltration, groundwater pollution, blocked drainage, etc. What is?
Published on: March 6, 2023 Number of hits: 7
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Municipal engineering is closely related to the daily life of urban residents, and the quality of municipal facilities will directly affect the quality of life of urban residents. Therefore, high-quality municipal pipeline engineering is of great significance to both the daily life of urban residents and the public image of the city. The municipal pipeline project is accompanied by road reconstruction, expressway construction and other projects
Published on: March 6, 2023 Number of hits: 10
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Resin sand casting process is a casting method that uses sand as the key molding material to make metal mold casting. Resin sand casting is a way of improving environmental protection and pollution-free casting. The manufacturer selects resin sand casting process, devotes itself to the casting production and processing of large and medium-sized castings, and promotes mass customized production and manufacturing for users! Because of the characteristics of resin sand casting (not affected by the part sample
Published on: February 27, 2023 Clicks: 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: February 15, 2023 Clicks: 12
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There are several anti-corrosion methods for urban sewage buried pipeline as follows: 1. Petroleum asphalt glass fiber cloth coating, which was previously used in oil pipelines, is now being eliminated. Its advantages are wide source of raw materials and low cost. The disadvantages are not resistant to bacterial corrosion, poor physical performance and poor construction environment. 2. Chlorosulfonated polyethylene coating - glass fiber cloth coating
Published on: February 15, 2023 Clicks: 9
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Handmade modeling design (core). There are more than 20 kinds of manual modeling design methods: sandbox modeling design, box splitting modeling design, folding modeling design, unpacking modeling design, pit modeling design, scraper modeling design, and core assembly modeling design lamps. The processing technology and weapon equipment are simple, diverse and adaptable, which are suitable for bulk or small batch production and core commodity research and development
Published on: February 11, 2023 Clicks: 9
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Iron castings and steel castings are produced by general smelting technology or simple equipment. Although both are iron carbon alloys, they have different metallographic structures after crystallization due to different percentages of carbon, silicon, manganese, phosphorus, sulfur and other chemical elements, showing many differences in mechanical and technological properties. Cast steel
Published on: February 11, 2023 Clicks: 7
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Plastic manhole accessories are an important part of plastic manhole. The use of plastic manhole accessories can ensure convenient, fast and efficient drainage of plastic manhole construction. By changing the connecting angle of the rubber ring, the detection of the diameter and angle change of the rubber ring joint is realized. The plastic inspection well shall be developed in coordination with the well cover, well bore and relevant accessories. Road load acts through well cover and well seat
Published on: February 1, 2023 Clicks: 12
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The precision casting part is a kind of casting part formed by pouring the casting metal liquid into a certain mold after cold treatment. There are many casting processes for precision casting parts, including metal mold casting, pressure casting, investment casting, lost foam casting and V-method casting, etc. The finished castings made by the precision casting process are relatively precise, and can not be reprocessed in the later period, or only a little
Published on: January 11, 2023 Clicks: 11
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Casting is one of the common production processes for parts. Because casting can use cast aluminum alloys with various compositions and characteristics, and in addition to the advantages of less investment in infrastructure projects and short production cycle time of diamond grade production and manufacturing capacity of processing technology coordination, it is widely used in mechanical equipment manufacturing, mining and metallurgical industry, road transportation, and petrochemical general machinery, Agricultural machinery
Published on: January 11, 2023 Number of hits: 6
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The plastic inspection well is an accessory structure connecting the rainwater and sewage discharge plastic pipes and providing maintenance workers or equipment with inspection and removal of foreign matters. It is very convenient for automatic or semi-automatic regular inspection and dredging of pipes. It, together with plastic pipes and fittings, forms an environmental protection sewage pipeline system with good circulation performance, strong sealing, long service life, convenient construction and installation, and material and land saving
Published on: December 28, 2022-13
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1. Lower the pipe. According to the center line of the survey and setting out, control the side line of the pipeline with a string. The 8t tire crane is used to lower the pipe, and the crane runs along the trench to 1m away from the edge of the trench to avoid collapse of the trench wall and affect the stability of the trench slope. Special hooks or flexible slings shall be used when lowering pipes, and steel wire ropes shall not be used to penetrate into pipes for lifting. At the same time, there is a specially assigned person to command and bind pipes
Published on: December 20, 2022-10 Number of hits: 15
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According to the small editor of the plastic inspection well, with the deepening of urbanization and the continuous implementation of the transformation of rainwater and sewage diversion, the urban underground drainage network has been rapidly developed and updated. According to statistics, the annual growth rate of national drainage pipeline is 10%. According to the municipal development speed and supporting proportion, it is predicted that a city with a population of 500000 needs about 10000 inspection wells every year; Newly built and reconstructed drainage inspection wells nationwide
Released on: December 15, 2022 Clicks: 12
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What are the equipment for producing cast iron well covers? Here, there are six kinds of cast iron manhole covers: gray cast iron, white cast iron, malleable cast iron, nodular cast iron, vermicular cast iron, alloy cast iron. I will not distinguish the difference of each type. If you are interested, you can read the previous information and take a look at the production of cast iron manhole covers
Published on: December 1, 2022-12 Number of hits: 8
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Current situation and characteristics of municipal pipeline construction Hainan plastic manhole Hainan municipal pipeline Hainan nodular cast iron manhole cover Since the construction of municipal pipeline is of great significance to urban development and people's daily life, local governments not only speed up the construction of municipal pipeline, but also constantly improve the construction of municipal pipeline
Released on: December 1, 2022 Clicks: 16
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1. Industry overview Guizhou municipal pipe manufacturer industry is an important branch of the plastic products industry. It is a pipe made of polymer materials such as PE, PVC and PPR, which is processed and produced through plastic extrusion molding, injection molding and composite molding. Plastic pipes are widely used in the engineering field with many varieties and can be used according to the engineering characteristics
Published on: December 1, 2022-12 Number of hits: 8
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Due to the superior product performance of plastic inspection wells for new environment-friendly building materials, the Ministry of Construction listed plastic inspection wells as an important new product to be promoted in the "11th Five Year Technical Bulletin". The plastic inspection well and the plastic pipe have good connectability, so the leakage problem is well solved. In today's serious shortage of water resources, the promotion of this product is conducive to the protection of groundwater resources and the improvement of water environment. Anaphase dimension
Published on: December 1, 2022-18
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1. Closed water at the connection of plastic well and pipe. Before the construction of the plastic inspection well and pipes, the construction party should be reminded that the rubber ring at the connection between the plastic well and pipes should be properly equipped, with proper tightness and water tightness. The construction party should be equipped with a suitable rubber ring with the supplier of the plastic well. Secondly, the rubber ring of the plastic well seat should be sleeved on the first grid of corrugated pipe and reinforced pipe corrugated or rib, so that the rubber ring and plastic well bearing
Published on: November 10, 2022-10 Number of hits: 10
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