Glorysteelwork

Asian Steel Trade Faces Multiple Challenges Weak domestic demand and trade friction are important challenges facing the development of the current steel industry, and the abuse of trade protection measures is bringing many negative effects. At present, the biggest problem faced in the Korean steel industry is that steel consumption has stagnated. Besides the poor performance of downstream industries such as domestic appliances, automobiles and ships, which restricts steel demand growth. The trade restrictions adopted by the United States have also caused a significant drop in the export of steel products to the US market this year. This poses more challenges for Korean steel companies that expect to export their digestion capacity. At the same time, due to insufficient domestic demand and export volatility, South Korea’s imports of steel products from Japan and China are also decreasing this year. Steel consumption in Taiwan is mainly for the construction, manufacturing and ...

Determination of Rail Material and Heat Treatment Process The  steel rail square bar  material usually has metal carbon content of 0.68% and 0.80%, which is a kind high-carbon steel in the sub-eutectoid steel. After heating the metal of this component, the crystal grows rapidly. When it’s heated to the welding temperature, it is basically in the first-order crystal particle size, belonging to the austenitic superheated structure. It is preserved under the condition of rapid cooling in the air after welding and extinguishing. The coarse-grained austenite structure is characterized by low plasticity, toughness and strength, hard and brittle, and cannot be used in the actual application. The coarse-grained austenite structure must be eliminated by heat treatment. For the hypoeutectoid steel, the most suitable treatment method is complete annealing. It not only refines the grains, uniformizes the structure, but also improves the strength, plasticity, toughness and ha...

Increased Steel Production in Vietnam May Affect Global Market Due to the strong export performance of Vietnam’s  hot rolled steel  coil  products and the increase in domestic production, it is expected to affect the global hot rolled steel coil trade pattern in 2019.Although steel exports are affected by the US 232 tariffs, unlike other Asian countries, the volume of exports to the United States has increased significantly in 2018. According to the US Census Bureau, Vietnam exported 1.11 million tons of steel to the United States in 2018, a 48% increase from 2017. Last year, US steel imports totaled 25.69 million tons, of which imports from Vietnam accounted for about 4.3%. One of the reasons for the increase in Vietnam’s steel exports is the increase in production at Formosa Ha Tinh Steel Corp. On May 18, 2015, the company’s second blast furnace was put into operation, doubling its crude steel capacity to 7 million tons. Formosa Plastics holds a 70%...

QC Research of Rail Nondestructive Reinforcement Equipment As an important part of guiding the operation of vehicles in  crane rail square steel  transit, crane rail square steel is affected by factors such as rolling process during production, bumping during transportation, fatigue wear during operation and rail welding joints, which are prone to minor or even serious injuries, causing them to break in winter. The chances of the crane rail square steel beaks are greatly increased, which affects railway transportation and even jeopardizes driving safety. In order to eliminate the safety hazards caused by lightly injured crane rail square steel, it is necessary to reinforce them. The traditional crane rail square steel reinforcement equipment mainly includes bulge splints. In recent years, with the development of high-speed railways and heavy-duty railways, the bulging cleats that cause additional damage to the rails cannot meet the demand, it is necessary to use rail ...

Vietnam Suspends Investment in Overseas Steel According to relevant media reports, after carefully assessing the supply and demand situation and possible environmental impacts, the Vietnamese government has pressed the “stop button” for overseas investors to build a new  cold rolled stainless steel  project in Batu Vung Tau province in southern Vietnam. This also means that after a period of development, the Vietnamese government began to strengthen the planning and management of steel projects, and gradually raise the barriers to entry. It is understood that an important reason for the rejection of the  cold rolled stainless steel project is that the project may trigger a crisis of overcapacity in the Vietnamese cold rolled stainless steel industry. According to the local government, the average annual demand for stainless steel in Vatican is 490,000 tons, and the annual capacity of the proposed cold rolled stainless steel project is 600,000 tons. In the vi...

Butt Welding Process of 30x40mm Crane Rail Flat Steel In the manufacturing process of the crane, the rails laid on the box-type main beam are often welded into a long rail without gaps by means of butt joints. We should select the welding consumable according to the material and surface hardness requirements of the rail. There are three types of crane trolley tracks, namely crane rails, such as QU70, QU80, etc., P-type rails, such as P24, P38, P43, etc., square steel, such as  30x40mm crane rail flat steel , 40x40mm and so on. The tops of the first two rails are convex, and the bottom is a flat plate with a certain width to increase the contact surface with the foundation. The cross section of the rail is I-shaped and has good bending strength, and its carbon content and high manganese content. The material of 30x40mm crane rail flat steel is usually S355 steel, and the top of the 30x40mm crane rail flat steel is straight. The butt weld of the rail requires that the surf...

Global Steel Sheet Demand Is Expected to Grow Steadily On April 18th, Edwin Basson, director-general of the World Steel Association, said that global  steel sheet  demand is expected to maintain steady growth over the long term, growing at a compound annual growth rate of 1%. The peak has been reached. Overall, we can see that steel sheet demand is growing positively and turning more to developing countries. The steel sheet market is very strong and demand is expected to increase slightly from the current 1.7 billion tons per year.By 2040, global steel demand is expected to grow steadily to 2 billion tons. Earlier this week, the World Steel Association predicted that global steel sheet demand would increase by 1.3% to 1.735 billion tons in 2019, a significant increase from last year’s 2.1%, while last year’s significant increase in demand was mainly driven by Chinese demand. The World Steel Association estimates that global steel sheet demand will be 1.752 bi...

Welding of Crane Rail Flat Steel and Q235 Steel The fixing of the  crane rail flat steel  is not fixed by the common pressing plate, but the crane rail steel flat is welded to the bottom plate, and then the bottom plate is bolted to the upper steel structure of the slow cooling pit, so that the crane rail flat steel can be fixed to the upper steel structure of the slow cooling pit. The higher carbon equivalent causes strong harden tendency of the workpiece during the rapid cooling process after welding, and a hard and brittle martensite structure appears in the heat affected zone of the base metal, especially near the weld line. Under the action of welding stress, the tensile strength of the hard and brittle martensite structure is exceeded, causing it to crack and generate cold cracks. Welding of crane rail flat steel and Q235 low carbon steel belongs to dissimilar steel welding. Q235 steel is a kind common carbon structural steel with good weldability. The crane rai...

Why did India Return to the Ranks of Net Steel Importer? Although India has repeatedly raised its domestic steel production capacity target, it has recently encountered a bit of frustration on the road to realizing the dream of a big steel country. According to the latest data released by India, in the fiscal year of 2019 (April 1, 2018 to March 31, 2019), India’s finished steel exports amounted to 6.36 million tons, down 34% year-on-year. In the same period, imports of finished steel products increased by 4.7% to 7.84 million tons. Exports failed to outperform imports. And after three years, India once again became a net importer of steel. For India, which is trying hard to develop the local steel industry and wants to increase the self-sufficiency rate of steel, this set of data will bring more or less frustration. Glory Steel export steel products all over the world, like  SS355 hot rolled steel square bar , hot rolled steel flat bar, etc. In recent years, in order to...

South Korea’s Hot Rolled Steel Plate Production Will Decline this Year It is predicted that Korean domestic production of  hot rolled steel plate  will decline this year due to weak market demand. In the first half of the year, Korean domestic production of hot rolled steel plate was 6.048 million tons, a decrease of 4.8% year-on-year. The main reason for the reduction in production is the large-scale maintenance of related equipment, especially in September and October. Another reason is the recent weakening of demand in the domestic market in Korea. In the second half of this year, besides the small rebound in market demand in the construction industry, the consumption prospects of other downstream steel industries are bleak. However, considering the intensification of trade tensions between Japan and South Korea, South Korea may cut import of hot rolled steel plate, cold rolled steel sheets and pipes from Japan. Therefore, Korean hot rolled steel plate producers ...

Control of Welding Deformation of Crane Rail Square Steel The pre-padded height of the  crane rail square steel bar  end is determined according to the type of the rail, the length and the fixing condition, and the ambient temperature. The copper pad and the carbon steel plate are used to underlay the crane rail square bar end 30mm to 40mm. With the adapting pieces, like bolts and pressure plates, we can tighten the nuts to fix the crane rail  steel square bar  to the rail beams, and set at least 4 fixing points near each rail joint. After welding the bottom of the track, loosen the platen, lower the padded portion of the rail end to 20mm, and then tighten the platen nut. After welding the waist portion of the crane rail square steel, gradually reduce the height of the mat. After the rail waist portion is welded, all the shim plates should be removed and the pressure plate should be loosened. At this time, the rail joint should have small upturn value. Durin...

New Detection Method for Crane Rail Square Bar Crane rail square bar—With the expansion of industrial production scale, the application of cranes in modern production is getting bigger and bigger, and the requirements of cranes are getting higher and higher. One of the main problems in crane operation is the  crane rail square bar  gnawing. When the crane rail square bar gnawing is severe, it may cause derailment accident. Therefore, regular inspection of the crane rail square bar is of great significance. The crane rail square bar detection parameters stipulated by the national standard mainly include the straightness in the horizontal plane of the monorail and the vertical plane in the vertical plane, and the span and height difference in the same section of the double rail. Currently, testing is based on two methods, namely laser alignment and total station method. The former detection is easy, but for large-span crane rail square bar, the image of the spot appears...

Peak Price in US Steel Industry Is Hard to Continue US President Trump’s steel tariffs have brought the US steel industry to a high-light moment in the past 10 years in 2018. Steel prices have remained at a high level, and corporates profitabilites have set records. However, as the market gradually returned to rationality, US steel prices have declined significantly since the beginning of the year, and steel companies’ earnings in the second quarter were lower than expected. Glory Steel could offer  30x 50 hot rolled steel square bar  for crane manufacturers or users. Even with the protection of taxes, high-cost producers are feeling the pressure on the market, and US Steel has announced a cut in production. At the same time, driven by good earnings in 2018, US steel producers have restarted their previous idle capacity and made new investments. Some analysts believe that US steel production capacity will increase significantly in the next two years, and new pressure ...

New Design about Crane Rail Flat Bar Inspection Device Crane rail flat bar  detection requires the detector to be as smooth as possible to reduce vibration and shaking during operation. The overall center of gravity should be as close as possible to the top of the crane rail flat bar and near the center axis of the crane rail flat bar to keep the unit stable. The target of the reflective target should be as close as possible to the center line of the top surface of the crane rail flat bar and ensure that the light is not blocked by itself when measuring. The crane rail flat bar clamping device of the instrument clamps the side of the rail through the guide wheel to maintain the running posture, and a spring urging mechanism is used to maintain the tension of the guide wheel to facilitate the passage of the rail joint and the unevenness of the side of the rail. The detector components are mainly designed with positioning components, clamping components, proximity switches, ...

Discussion on the Solution of Flat Steel Bar Crane Rail Problem Overhead cranes are high-altitude equipment. Whether they are used as lifting equipment for large-scale equipment maintenance or as a key equipment in the production process, they must have matching  flat steel bar crane rail . In many years of management and maintenance of these special equipments, some problems will occur during the operation of the existing rails. The rails and bridge crane wheels are heavily worn. The rail gnawing is frequent. The frequency of electrical faults associated with it is high. The existing overhead flat steel bar crane rails are connected by a plurality of rails connecting plates, which are determined by the production process, transportation and installation of the flat steel bar crane rail. When the flat steel bar crane rails are connected, there must be a rail joint. Under the action of the equipment and the thermal expansion and contraction caused by the temperature diffe...

Maintenance and Adjustment about Square Bar Crane Rail The  square bar crane rail  for the crane and the trolley to travel vertically and horizontally is the basis for the good operation of the crane. Besides the quality of the square bar crane rail itself, the installation quality of the square bar crane rail is the basic condition for ensuring the smooth operation of the crane. Cranes, especially double-girder overhead cranes used in workshops, have been used for many years, and various problems often occur in the rail, such as loose rail joint splint, track wear, track displacement, deformation, and parallelism of the amount of track parallelism, plant subsidence, etc. The orbital flatness is out of tolerance. These problems have a great impact on the operation of the bridge crane. Usually, rail gnawing  will occur for the bridge crane during operation, abnormal noise will be generated during operation, and the walking wheels of the large and small v...

Hot Roll Forming Technology of Shaped Square Steel The flat anchor plate of the bridge industry made of SCR440 steel 49mmx51mm pointed angle  shaped square steel  is neither square steel nor flat steel. The shape of this special-shaped square steel is strict, the hot-rolling forming is very difficult, the technical difficulty is large, and the product has no corresponding standard for reference. At present, there is no hot rolling mill directly rolling molding in China, and only cold drawn can be used, or flat steel bar can be rolled and cut into this size. However, cold drawn molding has low production and high cost, which hinders its development and progress. When the shaped squar steel bar is rolled into flat steel, the symmetry is not good on both sides, and the cutting cost is high and the production time is long. If it can be produced through the rolling process, it will be a revolutionary material molding process improvement. Through many trials and improvement...