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22

2022-11

Types and properties of epoxy floor paint:

1, epoxy resin floor, epoxy self leveling floor, epoxy sand floor has good decorative properties; 2, epoxy anti-static floor has a good anti-static effect; 3, metal wear-resistant floor, emery wear-resistant floor has good wear resistance and so on. The user can choose the corresponding floor products according to the requirements of the ground: First: due to the different floor decoration performance characteristics, if the ground needs better decorative floor should choose self leveling floor, sand floor and so on; Second: according to the different materials of the floor to choose different types of floor coatings. For example, the building floor surface materials are concrete, cement, mortar, wood, steel, asbestos cement board, etc., different materials have different requirements for floor paint coatings, therefore, should be in accordance with the different materials of the base layer to choose different types of floor paint coatings; Third: according to the budget cost to choose floor paint. The budget price determines the level of floor paint, the more budget, of course, you can choose a better floor paint, performance is more secure. Fourth: in accordance with the next floor to decorate the length of time to choose floor paint. If the next floor decoration time interval is longer, to choose a better performance such as wear resistance floor paint, if the next time to decorate the time interval is relatively short, you can choose the performance of a little worse floor paint.

2022-11-22

22

2022-11

Interpretation of factors affecting the grinding effect of processed objects

Interpretation of factors affecting the grinding effect of processed objects Grinding is the grinding tool (hereinafter referred to as the grinding tool) surface embedded abrasive or coated abrasive and add lubricant, under certain pressure, the tool and the grinding tool contact and do relative movement, through the abrasive action, from the workpiece surface cut a layer of very thin chip, so that the workpiece has a precise size, accurate geometry and high surface roughness. Its essence is to use free abrasive particles to carry out micro-cutting including physical and chemical comprehensive effects on the surface of the workpiece through the grinding tool. Features: (1) In mechanical grinding, the machine-tool-workpiece system is in an elastic floating state. (2) The workpiece to be ground is not subject to any force and is therefore in a free state. (3) The speed of the grinding movement is usually below 30 m/min, which is about 1% of the grinding speed. (4) When grinding, only a very thin layer of material can be cut off, so the heat generated is less, the processing deformation is small, and the surface deterioration layer is also thin. (5) There is residual compressive stress on the grinding surface, which is beneficial to improve the fatigue strength of the workpiece surface. (6) The operation is simple and generally does not require complicated and expensive equipment. (7) Adaptability is good. (8) grinding can obtain very low surface roughness.

2022-11-22

21

2022-11

The World Cup is coming. Made in China provides strong support for the Qatar World Cup.

The World Cup is coming. Made in China provides strong support for the Qatar World Cup. Chinese enterprises set a number of industry records for the construction of the World Cup stadium. The 2022 Qatar World Cup started at the Gulf Stadium on the 20th. From the stadium to the water supply network to the power guarantee, made in China has provided strong support for the world cup in Qatar. The stadium is an indispensable and important infrastructure for the World Cup. In Qatar, Chinese companies have participated in the design and construction of many stadiums. Among them, the main stadium of the Qatar World Cup-Lussel Stadium is the first project undertaken by a Chinese company as a general contractor for design and construction. The World Cup stadium project has set a number of industry records. Li Chongyang, head of the general contracting company for the design and construction of the Lucel Stadium: The Lucel Stadium is currently the world's most advanced, largest, and most complex professional football stadium built using FIFA (FIFA) standards. Hassan Alsawadi, Secretary-General of the Qatar World Cup Organizing Committee: The Lucel Stadium has the most complex facade and roof structure, which proves that the technical capabilities and service levels of Chinese companies can successfully build this complex Stadium. Made in China to ensure water safety, desert watching is no longer difficult Qatar is a country where "water is more expensive than oil". In order to ensure water safety during the World Cup, Qatar has built 15 super-large reservoirs in 5 locations across the country. There is still help from Chinese manufacturing. Wang Shaohua, project manager of Qatar super large reservoir medium enterprise: our construction technology level has also reached the level of international advanced enterprises. We have solved the problem of concrete pouring in high temperature desert areas through technical research. Qatari strategic reservoir project site director Kalissa Lingam: Chinese enterprises are responsible for part of the construction speed, good quality. I have successfully passed all the engineering quality tests and have not had any problems so far. I think Chinese enterprises are the best. Made in China to help Qatar build a "green World Cup" In the field of new energy power generation in Qatar, made in China is also the main force. The 800 MW photovoltaic power station in Al Casa, Qatar, built by Chinese enterprises, has greatly increased the proportion of renewable energy in Qatar's energy consumption and helped Qatar fulfill its promise to host the "Green World Cup. Li Jun, Site Construction Manager of Qatar Alcaza 800 MW Photovoltaic Power Station China Enterprise Project: The 800 MW photovoltaic area of this project uses all Chinese equipment, which accounts for more than 60% of the total investment of the project, further enhancing the market share of domestic brands in the Middle East. The head office reporter Zhao Yuanfang: The Chinese construction and Chinese manufacturing that appeared in Qatar shined brilliantly, demonstrating China's position in the global industrial chain. It can be said that from the construction of venues to the guarantee of water and electricity, from the periphery of the event to supporting services, made in China is contributing "Chinese strength" to the World Cup in Qatar ". Made in China at the World Cup In addition to large stadiums and water and electricity facilities, in this World Cup, fans can often see Chinese-made figures in terms of food, clothing, housing and transportation in Qatar. Fans supplies made in China with high quality and low price are favored Zhao Yuanfang, a reporter from the front desk: I am now in a large shopping mall in Doha, behind which is a Qatar World Cup merchandise store. At present, many shopping malls in Qatar have set up such World Cup merchandise stores. The goods sold in this store include footballs, jerseys, scarves, backpacks, hats, etc. officially authorized by FIFA's 2022 World Cup. The football is priced at 79 Qatari riyals, which is about 160 yuan, and most of the jerseys are priced at Around RMB 350. Most of the goods are made in China, and the store recently added orders as sales far exceeded expectations. Shop assistant Jafar Khan: About 60% of the goods in our store are made in China, especially jerseys and backpacks, almost all of which come from China. They are of good quality and customers love Chinese products. 1500 Chinese buses make World Cup travel easier And the travel and accommodation of fans from all over the world during the World Cup are also reflected in China. Looking at travel first, Qatar has imported about 1500 buses from China, including 888 pure electric buses, accounting for more than 30% of the total number of vehicles operating in the World Cup. Wei Yingpeng, an engineer stationed in Qatar by enterprises operating vehicles in the World Cup: Because the local temperature in Qatar is relatively hot, it is also a challenge to the power battery. We monitor the power and power consumption of 888 new energy vehicle batteries in real time through the background every day. Ahmed Obadli, Chief Operating Officer of Qatar National Transportation Company: Chinese technical experts and we have joined hands in research and development to cope with Qatar's climate conditions and tailor-made models for Qatar to adapt to local environmental conditions. Made in China fans village convenient and more affordable In order to receive millions of fans, Qatar has set up six fan villages across the country. Chinese companies have provided more than 10000 container houses for these fan villages. Here, the price of a double room is 200 US dollars per night, which is about 1400 yuan, while the price of a local star hotel usually costs thousands of US dollars. By comparison, the fan village is quite economical.

2022-11-21

21

2022-11

Epoxy floor grinding machine maintenance and maintenance

Epoxy Floor Grinder Operating Instructions 1. Place the machine flat on the ground. 2. Remove the motor cover and check the tightness of the belt. If the belt is too loose, press down the handle to tilt the chassis, loosen the chassis screws (4 screw holes are oval), adjust the screw position in the oval hole to tighten the belt, and then install the motor cover. (The three-head grinding machine directly removes the motor cover to check the belt tightness, which can be directly adjusted). 3. After the chassis is tilted, expose the grinding disc, install the grinding head in the fixed position of the chassis, and then lock the grinding head to prevent looseness. 4. Put the machine back to the ground slowly to make the grinding pad touch the ground. 5. Plug in the power supply. 6. Turn on the vacuum cleaner switch, turn on the power switch, and the machine starts to run. After the machine is running, slowly move forward to make it touch the grinding area. 8. In the process of operation, if there is any abnormal situation, please press the OFF key to stop the machine. 9. Turn off the power supply after the machine works for 50 minutes, turn on the upper and lower bins of the vacuum cleaner, and clean up the dust in the bin and on the cotton net in the bin. 10. When replacing the grinding plate, the machine should be stopped first. 11. After the machine is finished, turn off the power switch and turn off the vacuum cleaner switch. 12. Use of the environment 12.1: The air pump should be placed in a clean, dry and well-ventilated environment. The installation surface shall be firm and smooth. 12.2: If the power supply uses only 90% of the allowable pressure under continuous load, the allowable voltage fluctuation range will increase or decrease by plus or minus 10% 12.3: Preparation before starting (1) Check the fastening of the air pump, whether the firmware is loose or falling off, the shell should be free of deformation or dislocation, and everything should be intact. (2) Check whether the motor wiring is correct and whether the power supply voltage is normal. Power-on operation can only be carried out after everything is normal. (3) The air pump shell is grounded and a leakage protector is installed. (4) Check whether the motor steering is correct. Warning!!! It is forbidden to start the air pump with power on when it is connected! 12.4: Normal operation The normal operation of the air pump should be stable, vibration, temperature rise and noise are normal. It is strictly forbidden to use hard connection at the inlet and outlet of air pump, and soft connection must be adopted. 12.5: Abnormal conditions During the operation of the air pump, if there is an abnormal increase in noise, screaming, increased vibration, and abnormal temperature rise, the power should be cut off immediately for inspection, and the power should be operated after troubleshooting. 13. Maintenance and Maintenance 13.1: Air pump appearance to keep clean. 13.2: air pump inlet and outlet filter should always keep clean, so as not to block the impact of air pump performance and normal work. 13.3: When replacing the bearing in time, the bearing specification and bearing grease should meet the requirements, and the replacement of the bearing should be operated by professional maintenance personnel. 14. Common faults and troubleshooting methods

2022-11-21

21

2022-11

Characteristics of Meitengqi MG4P-YY-580

Meitengqi brand MG4P-YY-580 multi-functional floor grinding machine, to meet the needs of professional users for large area industrial floor grinding efficiency, very cost-effective. Suitable for marble, granite, concrete floor grinding renovation, etc. Product Features: 1. The appearance design is novel and elegant. 2. Folding handle, integrated central control panel design, convenient operation, safe and reliable, ergonomic, easy to move the handle. 3, high-power (7.5HP) variable frequency motor, to meet the requirements of industrial floor grinding for a long time and frequent use. 4, automatic pressure adjustment control system, to meet the needs of different construction technology. 5. It can be equipped with dust collection equipment to realize dry and wet working modes. 6. The rotary drain switch and the central water outlet system of the grinding disc can effectively solve the secondary loss of grinding consumables and the grinding line generated during work, thus greatly improving the work efficiency. 7. The multi-functional grinding disc can be installed with various grinding consumables to reduce your construction cost as much as possible. Want to know more welcome to call Guangzhou Qing Qin Yu Environmental Protection Technology Co., Ltd., we wholeheartedly for your service! http://www.qingqinyu.com

2022-11-21

21

2022-11

Key Points of Small Roller in Subgrade Construction

2022-11-21

18

2022-11

Join hands to meet challenges and accelerate economic recovery-Asia-Pacific economies look forward to APEC to inject new impetus into regional development

2022-11-18

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