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Rust removal method and process of mechanical equipment This document contains derusting grades of mechanical equipment, comparison of derusting methods, various derusting processes and how to select them -
NDT process specification (butt weld ray) This document is the NDT process specification (butt weld ray), including: content introduction 1.1 This process specification is applicable to the X-ray radiographic testing of butt welds of pressure vessels manufactured according to the requirements of Volume VIII, Volume I of ASME Code. 1.2 If necessary, this process procedure shall be supplemented by the flaw detection operation instruction to specify more detailed variables. This instruction is prepared by -
Welding technology of penetration fillet weld of steel box girder of Dingxiang Bridge This data is about the welding process of the penetration fillet weld of the steel box girder of the Dingxiang Super Major Bridge, which is detailed and can be used for reference. -
Introduction of Rust Removal and Spraying Repair Process for Small Diameter Water Supply Pipeline After using this kind of water supply pipe for a period of time, the pipe wall will have varying degrees of corrosion, which will seriously affect the quality and quantity of water supply. In order to ensure the safety and reliability of water supply, we generally remove the old pipe network and re lay the new pipe network to reconstruct the corroded pipe network. -
Crafts and standards of carpentry construction Carpentry construction process and standard carpentry construction process and standard carpentry construction process and standard -
Landscape technology standard -- hard landscape This material is the standard of landscape technology -- hard landscape. The content is detailed and can be used for reference. -
Several techniques for greening a slope Several construction technologies of slope greening Abstract: This paper briefly describes several common construction technologies and process flow of slope greening. Key words: slope greening; Construction technology; technological process; In the construction of highway, railway, mine, water conservancy and other projects, the process flow is often accompanied by a large amount of earth rock excavation, which destroys the original vegetation and causes a large number of exposed slopes -
How to select desulphurization process for sintering machine This paper discusses how to select the desulfurization process of sintering machine -
Key points of coking industry process and supervision Key points of coking industry process and supervision -
Guangzhou Electroplating Pure Water Equipment Process In the electroplating and coating industry, in order to increase the surface finish, brightness and adhesion of plated parts, pure water with conductivity below 15uS/cm is required for the preparation of electroplating solution; In addition, pure electroplating water with conductivity below 10uS/cm is also required for rinsing of plated parts. The water treatment system for electroplating industry includes pure water system for preparation of electroplating solution before electroplating, and rare electroplating rinsing wastewater -
Construction technology of tower crane for a certain project Detailed process of tower crane installation and removal at the construction site, 16 pages in total. 1. Layout of tower crane center: the tower crane for the construction of the building is set between axis 18 and axis 20, the outer edge of the tower body is 5m from the side of the building, and the wall attached support of the tower body is tied on the column where axis A intersects with axis 18 and axis 20. 2. The tower crane foundation adopts natural foundation beam plate foundation, and the foundation size -
Anti corrosion process standard of pipeline equipment Anti corrosion process standard of pipeline equipment -
Thermal insulation process standard of pipeline and equipment 1 Scope This process standard is applicable to the insulation of heating and domestic hot water or steam pipes and equipment, and the anti condensation insulation of water supply and drainage pipes. 2. Construction preparation 2.1 Material requirements: 2.1.1 The performance and specification of thermal insulation materials shall meet the design requirements and be provided with a certificate of conformity. Common materials include: 2.1.1.1 Precast tiles: -
Art floor technology of decorative concrete The concrete color texture imprinting system can form a natural stone appearance with lasting color on the surface of newly laid concrete through the use of hardener, release powder and imprinting template. It has the artistic effect of perfect integration with the surrounding landscape, and has the characteristics of rich colors, embossing patterns and diversity. This technology is convenient and fast for synchronous construction with newly laid concrete. Concrete color texture pressure -
Effective combination of desulfurization process and equipment More than half of the existing ammonia synthesis and methanol synthesis enterprises reconstructed and expanded in China belong to small old nitrogenous fertilizer plants that produced less than 10000 tons of synthetic ammonia annually before the 1980s. In the past ten years, although some manufacturers have gradually formed large well-known enterprises with an annual output of more than 100000 tons, 200000 tons, or even 300000 tons and 400000 tons of synthetic ammonia, there are still many manufacturers with process layout -
Trend and process of reclaimed water reuse Trend and process of reclaimed water reuse -
Application of dehumidification technology in bridge At present, with the improvement and development of bridge construction technology, long-span bridges have become the main bridge structures across bays and rivers, and steel structures have also been widely used in these long-span bridges. However, the research shows that the corrosion rate of steel increases exponentially when the relative humidity in the air exceeds 60% due to the influence of the relative humidity of the air. -
Analysis on the purging construction of process pipeline This paper analyzes the new process and method of metal pipeline purging in process pipeline, and discusses how to improve the efficiency of purging and save construction costs. -
300 construction processes Part 6 The 300 construction processes (10 parts in total) include: water and electricity, foundation, shear wall, column, indoor decoration, outdoor decoration, etc. You deserve it! -
Construction technology and method of culvert The Qing Huidian • Three Ministries of Work • Dushui Qingli Division: "All workers have embankments, dams, fascines, tunnels, and culverts." Note: "Culverts are of the type of siltation culvert, drainage culvert, and irrigation culvert. The stone is used as the face stone on the wall, the bottom stone on the wall, the capping stone on the top, and the city wall behind the wall. The rest is different from the stone.", Culvert refers to the intersection of highway or railway and ditch -
Three characteristics of valve manufacturing process In order to meet the needs of the process, it is often necessary to improve the accuracy of the positioning base surface and reduce the surface roughness, or to machine the positioning base surface on the non machining surface, which increases the complexity of the valve manufacturing process. -
New biological nitrogen removal process and its principle Introduce the new nitrogen and phosphorus removal process, its principle and some current applications -
Decoration construction process and process standards Decoration construction process and process standard Decoration construction process and process standard Decoration construction process and process standard -
Brief Analysis of Steel Pipe Laying Process Design 005 Steel pipe laying process 005 Steel pipe laying process 005 Steel pipe laying process 005 Steel pipe laying process -
Analysis on wiring technology of porcelain column and porcelain bottle 010 Porcelain column and porcelain bottle wiring process 010 Porcelain column and porcelain bottle wiring process 010 Porcelain column and porcelain bottle wiring process -
Analysis on the heat preservation process of refrigeration pipeline Analysis of refrigeration pipeline insulation process analysis of refrigeration pipeline insulation process -
Analysis on the wiring technology of plastic trunking 014 Plastic trunking wiring process 014 Plastic trunking wiring process 014 Plastic trunking wiring process -
Brief analysis on heat preservation process of pipeline and equipment 016 Insulation process of pipeline and equipment 016 Insulation process of pipeline and equipment 016 Insulation process of pipeline and equipment -
Discussion on uasb process design system Beijing Environmental Protection Research Institute Wang Kaijun This document mainly discusses the design of uasb design volume, hydraulic load and various indicators in detail, and introduces three separators and inlet water design -
Construction technology of indoor fire hydrant system Construction process of indoor fire hydrant system 1. After the installation of indoor fire hydrant system is completed, the fire hydrants on the roof floor (or in the water tank room) and two fire hydrants on the first floor shall be taken for fire test. If they meet the design requirements, they are qualified. 2. Install fire hydrant hose, hose, water gun and quick connect -
Summary of Circumferential Cutting Technology of Bridge Pile Foundation This summary mainly introduces the circular cutting process of the pile head of bridge pile foundation, and defines the various links that need to be controlled in the circular cutting, which is of great significance -
Longhu Lake Landscape Craft Effect -- Soft Landscape Soft landscape: soil improvement, tree hole, seedling planting, support, terrain shaping, lawn planting -
Construction technology and process of jet grouting pile The construction equipment is mainly composed of the drilling rig and the high-pressure generator. Due to different types of injection, the machines, equipment and quantity used are different -
Introduction of fiber rotary disc filter process Puhua Environmental Protection - Fiber Rotary Disc Filter is a kind of sewage deep filtration equipment independently developed by Puhua Holding Co., Ltd., which is the first in China and has a unique patent. Its main functions are: further purification of surface water, upgrading of sewage treatment plant (upgrading from Level I B to Level I A standard) and reuse of reclaimed water. Industries and fields of application include: sewage treatment plant, steel plant, power plant cooling -
Diversion biological aerated filter process Content Introduction: Conduction Current Biofilter (hereinafter referred to as CCB method) is based on the traditional biological aerated filter and fully refers to the downward flow biological aerated filter method, upward flow biological aerated filter method, contact oxidation method, biofilm method, manual rapid filtration method, sedimentation separation method, and pumpless sludge recycling -
Water supply and drainage and HVAC map reading process Pipeline engineering construction technology refers to the whole process of pipeline factory construction. It mainly includes 1. selection and mapping of pipes and fittings; 2 Support fabrication and installation; 3. Pipe section pre support and installation; 4. Installation of equipment containers, sanitary wares, accessories and structures; 5. Insulation, test and commissioning of pipes and equipment. -
Design of dry hanging process for facade of an external wall 1. An office building in * * * * is located in the south street of * * * * *, south of the newly built municipal government. The building area is about 8863 square meters. Seven storey frame structure. The total height is 26.5m, and the exterior decoration is composed of stone curtain wall and partial glass curtain wall. 2. Stone curtain wall is dry hanging. The skeleton is shaped steel keel, and the slate is granite with a thickness of 30MM. The area is about -
Process standard for mechanical connection of reinforcement This standard gives the construction and quality acceptance methods of mechanical connection joints of stressed reinforcement in concrete structures. This standard is applicable to the construction of ribbed steel sleeve extrusion connection and steel taper thread and straight thread connection of stressed steel joints in industrial and civil buildings.
