5 Tips Technology Improves Safety at Construction Site

Building and construction sites residence almost 6.5 million American workers and their safety is an essential problem for employers. Regardless of this, the casualty rate in the building industry is the highest possible in the U.S. Workers at these sites constantly need to check the possible dangers of drops, misuse of equipment, and architectural failures causing injury or fatality. This makes it incredibly vital for business leaders to establish a culture that focuses on security in any way prices.

The Current State of Construction Site Safety
As companies remain to explore brand-new methods to raise building and construction site safety levels, developing innovations such as virtual reality as well as wearable gadgets use an opportunity to act as well as get upon safety and security data like never ever in the past. Regardless of 84% of building and construction managers stating that even more is required to be done to boost security degrees, the adoption of technology-led initiatives has stayed reasonably conservative.

This sluggish adoption can be credited to the dependence on heritage systems and also an absence of technological proficiency. To get over these difficulties, firms need methods to integrate details of modern technologies into an integrated innovation pile that can share information as well as highlight discomfort points early. Right here are 5 methods the incorporated use technology can reduce instances of devastating Jobsite events.

5 Ways to Use Technology to Improve On-Site Safety
Rise safety conformity with mobile applications
While construction organizations go to fantastic sizes to develop safety procedures and also short workers on safety finest methods, examining involvement and conformity can be a challenge without digital procedures. Mobile applications can make it very easy to consolidate safety and security protocols such as reporting, notice, as well as organizing. Managers can make certain compliance with state and government guidelines as well as promptly identify the training that each employee has experienced.

Accumulating information on safety and security compliance requirements allows greater insight into on-ground tasks. Mobile applications that make it very easy to review participation and also the efficiency of safety activities also allow building and construction organizations to make that data readily obtainable throughout organization divisions, therefore eliminating existing details silos.

Improve training through digital web content
Current research study has actually revealed that 90% of work-site crashes are brought on by risky habits and environments. This typically happens as a result of a lack of understanding of the security methods by on-ground workers, inadequate security training, and also a general lack of awareness of established safety and security methods. The presence of security methods, as well as the availability of safety and security training, are commonly inadequate to make certain all employees are effectively informed pertaining to the relevant safety procedures.

Developing digital web content can help magnate make certain that each worker on the ground has simple access to this info whatsoever time. Digital material, when distributed via an integrated data solution, also allows managers to ensure participation and interaction degrees continue to be high during the training. Correspondence courses, as well as regular digital evaluations, can also improve employees' experience with new procedures and also policies they should be aware of.

Augment physical labor with wearable innovation
A current United States Chamber of Commerce record detailed the increase of wearable innovation in the building and construction sector, anticipating that virtually a quarter of service providers will certainly use this technology by 2023. Wearable innovation in the building can come in many forms, from increased fact as well as virtual reality headsets to exoskeletons that offer skeletal and muscular support for staff members taking care of hefty physical work.

The physical nature of operating in the construction industry can commonly take its toll on the human body as well as overexertion is a usual root cause of injury and fatigue at several job sites. The use of wearable modern technology can literally strengthen workers with exoskeletons while monitoring tiredness degrees as well as recognizing susceptible employees prior to a disruptive event is videotaped.

Preempt security spaces with predictive information analytics
The intro of any kind of contemporary technology right into building and construction websites can create huge amounts of data that can be evaluated to remove beneficial understanding. Recent research has actually shown that the correct use of anticipating analytics can forecast office crashes with nearly ideal accuracy. As building and construction equipment increasingly links to the Internet of Things, software analysis of the information accumulated from them needs to keep up.

Anticipating evaluation enables site managers to identify mechanical factors of failing prior to it occurs. This greatly decreases the likelihood of employees being hurt because of malfunctioning or under-serviced tools.

Respond to devastating occasions quickly with localization innovation
Regardless of technology lowering the threat of work environment injuries, building businesses need to still be prepared to react to any type of devastating event that does happen. Executing electronic remedies throughout divisions can often further the production of deeply entrenched information silos. Therefore, the integration of all these technologies comes to be exceptionally crucial. Once properly incorporated, the information that is shared between the tools can give supervisors a better summary of the state and area of each critical system, thus placing them in the best setting to react as well as identify any kind of adverse on-site event.

Why combination is the key to unlocking the capacity of safety and security innovation
A vital consideration that organization leaders ought to take note of when carrying out these modern technologies is that they do not exist in isolation. The automated information circulation in between crucial systems can equip site managers by reducing human error as well as boosting foresight when resolving possible on-site safety concerns.

In contrast to a change and also dispose of approach, combination permits firms to urge buy-in from staff members, reduce expenses, as well as improve existing systems. The integration of emerging modern technologies with traditional systems can also make the shift much less taxing for employees who have actually collaborated with older systems for many years.

Ultimately, the combination of contemporary technologies with existing systems equips business leaders to develop the OSHA recommended framework of preventative security while enhancing data collection to recognize possible voids in safety early, decreasing human error, as well as minimizing instances of on-site devastating security occasions.

Construction websites house virtually 6.5 million American workers and their safety is an essential concern for employers. While construction businesses go to fantastic lengths to develop security procedures and brief workers on security best practices, examining involvement and compliance can be a challenge without digital processes. This commonly takes place as a result of a lack of understanding of the security protocols by on-ground workers, insufficient safety and security training, and a general absence of awareness of recognized safety and security protocols. The presence of safety and security procedures and the accessibility of safety and security training are commonly not adequate to make certain all employees are effectively oriented concerning the pertinent security processes.

The automated information flow in between critical systems can equip site managers by decreasing human mistakes as well as improving insight when attending to potential on-site safety problems.

Analysis of the Causes of Tundish Plug Erosion

During the continuous casting operation of the continuous casting machine, the stable use of the ladle long nozzle, the tundish stopper rod and the immersed nozzle is the key to achieving high-reliability continuous casting. The use of the tundish stopper rod mainly causes the adhesion of inclusions and the erosion of the stopper rod head. The slag-making process optimization and calcium treatment can effectively solve the problem of inclusion adhesion. Therefore, the stopper rod erosion problem has become the key to affecting the stable continuous casting operation.


Analysis of the Causes of Stopper Rod Erosion
Stopper rod material and production steel type
All stopper rods currently in use are made of aluminum carbon (Al2O3-C). When producing low-silicon aluminum killed steel, slag line erosion is prone to occur. In particular, when producing low-carbon, low-silicon aluminum killed steels such as ML08Al and XGM6-1 with a finished carbon content of less than 0.10%, the slag line erosion phenomenon occurs frequently. In severe cases, the slag line erosion rate of the stopper rod can reach 80%, and the stopper rod breaks at the slag line, causing production interruption.

steel tundish
Erosion reaction mechanism of slag line
The Marangoni effect plays an important role in the local erosion of refractory materials at the steel-slag interface. In the actual production process, the slag line of carbon-containing refractory materials causes the slag-steel interface to fluctuate due to the interfacial tension, resulting in local erosion of the slag line material, as shown in the figure. Since the stopper rod is in a continuous up and down reciprocating motion in the tundish, the erosion of the slag line will be further aggravated.

steel tundish
In the tundish, in order to avoid direct contact between molten steel and air and prevent secondary oxidation of molten steel, a covering agent is added to the surface of the molten steel for protection. At this time, a temperature gradient is generated in the tundish, causing convection between molten steel and slag at the slag line, increasing the scouring of the slag line of the stopper rod. This micro-circulation caused by convection at the slag-steel interface will aggravate the erosion of the refractory.

Molten steel erosion of stopper rod
When producing low-carbon, low-silicon aluminum-killed steel with a carbon content of less than 0.10% in molten steel, aluminum is used for deoxidation and killing. The molten steel will be treated with calcium before being cast. At this time, the carbon in the stopper rod will be immersed in the molten steel to form a decarburized layer. At the same time, the calcium treatment of the molten steel will cause a significant increase in CaO in the molten steel. In addition to the denaturation of Al2O3 in the molten steel, excessive [Ca] and [CaO] will react with Al2O3 in the stopper rod matrix to form a large amount of low-melting calcium aluminates such as 12CaO·7Al2O3 and CaO·Al2O3, which will flow into the molten steel and slag to form corrosion.

In the actual production process, when the Al content of molten steel is controlled at 0.045% and the calcium content is controlled at 0.010%, corrosion still occurs. Through on-site tracking research, it is found that the main reason for the corrosion of the slag line at this time is that the CaO component in the slag layer in the tundish pouring area reacts with the Al2O3 in the stopper rod matrix to produce the same corrosion condition.

Effect of Tundish Temperature on Slag Line Erosion
The slag line erosion problem of XGM6-1 ultra-low carbon steel stopper rod is the most serious. The corresponding relationship between the tundish temperature and the slag line erosion is statistically analyzed. As shown in the figure, the average tundish temperature of the first three pourings was controlled at 1567-1575, the slag erosion of the stopper rod was relatively light, and no erosion fracture occurred. The average tundish temperature of the last five pourings in the figure was controlled at 1577-1583, and the stopper rod erosion fracture occurred.

steel tundish
Improvement measures
Strictly control the slag discharge of large bags
The main sources of slag components in the middle ladle pouring area are ladle refining slag, middle ladle covering agent and molten steel inclusions floating up and melting into the slag layer. Among them, the low-silicon aluminum killed steel refining slag with more serious stopper rod erosion is a high-basicity refining slag system, and the CaO content in the slag is controlled at 55%-65%. The slag of each furnace’s large ladle will form refined slag enrichment in the middle ladle pouring point area. During the transfer process and when the steel flow hits the slag surface in the pouring point area, the refined slag will enter the pouring area and erode the stopper rod.

Therefore, it is necessary to strictly control the slag of the large ladle, and use automatic control of slag detection to avoid a large amount of slag at the end of pouring. At the same time, the slag discharge operation of the middle ladle should be adopted. When the large ladle continuously pours 5-7 furnaces of molten steel, the slag discharge operation of the middle ladle is carried out to raise the liquid level of the middle ladle to control the thickness of the slag layer in the pouring point area.

Control the superheat of the middle package
The liquidus of XGM6-1 steel is 1535, and the superheat is controlled at 25-45. From the actual production process, when the average superheat of the tundish reaches 45 (the tundish temperature is 1580), slag line erosion occurs in all cases. By reducing the average superheat of the tundish by 15, the actual average tundish temperature is reduced to about 1560-1565, and the slag line erosion is significantly improved. The slag line erosion rate of the stopper rod can be stably controlled within 20%, as shown in the figure.

steel tundish
Optimizing the composition of molten steel covering agent in tundish
In view of the reaction between the tundish slag and the stopper rod slag line, it is impossible to completely avoid the problem of refined slag entering the pouring area and the high overheating of the tundish in the actual production process. Therefore, the composition of the tundish molten steel covering agent is optimized, and the MgO content in the covering agent is increased according to the temperature of the tundish of different steel grades, so that Mg-Ca-Al-Si multi-compounds are formed in the tundish slag layer, and the melting point is above 1600, forming a protective layer at the stopper rod slag line to slow down the erosion of the rod refractory by the tundish slag.

The MgO content control in the covering agent needs to be adjusted according to the actual control range of the molten steel. When the MgO content exceeds 15%, the melting point of the tundish slag will increase significantly. When the steel grade with the tundish temperature below 1560 is generated, the slag layer in the pouring area of the tundish will be crusted, affecting the normal stopper rod control. The amount of tundish covering agent added is controlled to keep the black surface of the molten steel liquid surface of the tundish. The reference actual covering agent composition is shown in the table.

steel tundish
By optimizing the composition of the tundish covering agent, a high melting point compound coating layer mainly composed of MgO is formed at the slag line of the stopper rod, as shown in the figure, which hinders the erosion of the refractory material at the slag line by the slag-steel interface reaction and effectively improves the service life of the stopper rod.


in conclusion
(1) By reducing the superheat of the molten steel in the middle ladle by 15, the erosion rate of the stopper rod slag line of XGM6-1 steel can be stably controlled within 20%.
(2) Strictly control the slag discharge of the large ladle, adopt the slag discharge operation of the middle ladle to discharge the refined slag enriched in the pouring point area, reduce the refined slag entering the pouring area, and reduce the source of CaO in the slag in the middle ladle.
(3) By increasing the MgO content in the molten steel covering agent in the middle ladle to more than 10%, the erosion of the refractory material at the slag line can be slowed down. Adjusting the MgO content to more than 80% can prevent the erosion of the stopper rod slag line and increase the service life of the stopper rod.
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Choose HYFR, Choose the top quality of China!
Choose HYFR, Choose the top quality of China!
Choose HYFR, Choose the top quality of China!
Choose HYFR, Choose the top quality of China!
Choose HYFR, Choose the top quality of China!
Choose HYFR, Choose the top quality of China!
Choose HYFR, Choose the top quality of China!

Oznake: ladle shrou, refractory

5 Interesting Facts About Concrete

This week's World of Concrete in Las Vegas is the first significant exhibition in the United States since the COVID pandemic changed the face of the convention and also conference service. For numerous, this is yet another sign of life slowly going back to typical for the building and construction industry.

If you've made the expedition to this year's WOC, you're expecting it all-- new products, sophisticated technology, interactive workshops, hands-on training, and also no question-- the Bricklayer 500! This one-hour competition checks the speed as well as stamina to name the globe's biggest mason.

Whether you're there personally or as well active in the field to go to, we join you in commemorating all points concrete this week. Below are some fantastic as well as strange realities concerning concrete, a solid and functional material, that is utilized in everything from our kitchen counter tops to the roadways we drive on day-to-day.

1. Concrete Usage is Staggering
With greater than 10 billion lots of concrete being generated yearly, concrete is one of the most eaten product on the planet-- apart from water. With three bunches used for every single individual worldwide, twice as much concrete is used in building and construction as contrasted to all various other structure materials.

In the U.S. alone, this number is more than 500 million lots. Worth greater than $37 billion, the concrete industry utilizes more than 2 million in the USA. With cement as its cornerstone, it is also responsible for 8% of the world's carbon dioxide (CO2) discharges.

2. Concrete Has Come a Long Way Given That 600 B.C.
Although Ancient Romans weren't the first to mix mud and also straw or produce mortar, they were the very first to use concrete in the majority of their building and construction. They efficiently used a mixture of ashes from Mount Vesuvius, lime, as well as salt water to develop the mix and packed it right into wooden types.

The Roman civil designer Vitruvius blogged about four sorts of "pozzolana"-- black, grey, red, and also white. The Romans comprehended the water resistant qualities of this new building material, utilizing it to create their port at Cosa.

Even more remarkable is the Roman Pantheon, which was made entirely out of concrete, without the enhancing assistance of structural steel. Its impressive 142-foot-high dome still stands today. It is a huge concrete structure and has actually weathered earthquakes and other natural catastrophes throughout its 2,000 years.

3. Concrete Helped Win World War II
Concrete "sound mirrors" were utilized at the beginning of World War II to offer a very early caution of approaching airplane. Before radar was established, the British erected parabolic acoustic mirrors or paying attention ears to spot aircraft. With a network of sound reflectors created along the English coastline, the British can discover the sound of approaching German aircraft.

The scooped concrete structures were made to pick up sound waves from opponent airplane, making it feasible to predict their flight trajectory, offering ground forces even more time to prepare British defenses.

4. World's Largest Concrete Structure is in China
At 185 meters high as well as 2,309 meters long, the Three Gorges Dam on China's Yangtze River is the largest concrete dam. Developed over 17 years in between 1994 and 2006, the job cost $37 billion to construct. Employees utilized some 21 million cubic lawns of concrete in the framework-- a globe document.

A hydroelectric station that can generate an unbelievable 22,500 MW of power, the dam's storage tank holds as much water as Lake Superior.

5. Concrete Furniture? Maybe Not a Lightbulb Moment
Did you understand Thomas Edison held 49 patents related to concrete? Along with inventing the light bulb, Edison's licenses included cement processing equipment, waterproofing cement paint, and also even a mold and mildew for single-pour concrete building.

On top of that, Edison visualized a future with concrete homes, concrete furniture, and also even concrete pianos, and refrigerators. He produced the Edison Portland Cement Company after he discovered the amount of sand waste generated by his ore milling company. He marketed the fine sand bits to cement makers for concrete manufacturing.

While these truths as well as background regarding the concrete market might not help you win at Jeopardy, there are plenty even more to pour over when it involves this versatile and strong product.

Well worth even more than $37 billion, the concrete industry employs more than 2 million in the United States. Concrete Has Come a Long Way Since 610 B.C.
Although Ancient Romans weren't the first very first mix mud and straw or create produce, they were the first to utilize make use of in the majority bulk their construction Building and construction Concrete "sound mirrors" were utilized at the beginning of World War II to give a very early warning of coming close to airplane. Workers utilized some 21 million cubic lawns of concrete in the structure-- a world record.

In enhancement, Edison imagined a future with concrete houses, concrete furnishings, and even concrete pianos, and also refrigerators.