Solutions to Metallurgical Industry

Solutions to Metallurgical Industry

As the strategic partner of Shanghai Baosteel, our company has participated in the R&D of intelligent equipment extensively for metallurgical industry. The products made by the Company have been widely used in many key links, including steelmaking, cold rolling, hot rolling, finishing, steel tube, etc.

Electrical Control System for Steel Tube Flaw Detection

The steel tube flaw detection control system consists of PLC, touch screen, frequency converter, etc., and the system can control the detection speed, product flow, detection nonconforming treatment, failure warning and others based on the process of flaw detection. The system is proven and easy to operate, and has been applied in eddy current inspection and supersonic flaw detector successfully by Baosteel Precision Steel Tube Co., Ltd.

 

Rotary Heating Furnace Control System

It adopts EIC system, and uses constant displacement pump for fuel supply, which can well control the heavy-oil heater; adopts double-cross control system, which can well control the temperature, flow rate and air-fuel ratio.

 

DC Adjustable-speed Device

Eurofins SSD expansion product 590P: the new product researched, tested and developed by our engineers for a long term: high-power DC adjustable-speed device, with rated operational current of 800A to 3,000A, is highly appraised by vast number of users since it was put on the market, and has been widely applied in DC driving system of metallurgy, rubber, textile and other industry. The device adopts original main-board of Parker SSD 590 and trigger panel to control the thyristor module, and improves its heat dissipation conditions significantly by special integrated configuration design, so that it works more stably, and facilitates installation and debugging within the cabinet. This series of speed governor has fine cost performance on the basis of maintaining all functions of the original one completely, with its price dropped by 20~50% as compared with the original one, so it is a preferred product for high-power all-digital DC governor system. The DC drive control system of the Company has been widely applied in relevant equipment of metallurgical industry.

Typical application:

Control System for Micro-tension Reducing Mill: with rated current of 1500A, several sets of the system have been applied in precision steel tube of Baosteel.

Electrical Control System for Six-roller Straightening Machine: with rated current of 270A*2, several sets of the system have been applied in precision steel tube of Baosteel.

Control System for 40T-120T Drawing Machine: with rated current of 600-1200A, nearly 20 sets of the system have been applied in precision steel tube of Baosteel

Control System for Puncher: with rated current of 1200-3000A, several sets of the system have been applied in precision steel tube made by Baosteel and steel tube made by Jiangsu Changbao.

DC Driving System for Walking Beam: with the rated current of 180A, several sets of the system have been applied in precision steel tube made by Baosteel.

DC Driving System for Mandrel: with the rated current of 180A, several sets of the system have been applied in precision steel tube made by Baosteel.

DC Driving System for Tube Rolling Mill: several sets of the system have been applied in precision steel tube made by Baosteel.

 

Fluidized-bed System

The equipment is an experimental facility, which is mainly used to study the gas-based reduction of powdery material (ore powder or laterite powder). The ore fines are reduced by fluidizing gas under the temperature conditions of 650~950℃, and get the iron sponge powder with the metalization ratio of 50~95%. It is also used to reduce and prepare low-cost ferro-nickel alloy selectively from low-grade laterite, and analyze the changes in components of gas and metal-containing powder materials. It is one of the most important experimental facilitates for the non-blast furnace ironmaking laboratory constructed newly by Baosteel Research Institute.

 

Multi-functional High-temperature Reacting Furnace

It is a laboratory equipment, which can used to test the weightlessness process due to reduction of iron ore or carbon-bearing pellet and other solid materials, and the experiment temperature is controlled at 800~1200℃ according to different conditions of raw material; under a certain atmosphere condition, it can melt the materials and separate the iron slag, and the experiment temperature is controlled at 1300~1600℃ according to different conditions of raw material. The equipment has been used by Baosteel Research Institute.

 

Experimental Production Line for Tin-making by Sheet

This project is an experimental production line, which is used to trial-produce new products, inspect the performance of tin-making by sheet, which is demanding for product processing quality, but has relative low requirements for yield. Main technological process: Uncoil the sheet ►Apply oil ►Make cup►Stretch►Trim►Clean and dry►Outer primer►Dry ►Print pattern►Paint finishing paint►Dry►Inner spray►Dry►Neck-in and Flange►Inner spray►Dry►Stack, mold and pack.

 

Tin-making specifications: (1) 355ml- Φ67×123mm (2) 500ml-Φ68×168mm. The equipment has been applied by Baosteel Research Institute successfully.

 

 

Strip Steel Visual Inspection Testing Platform

The comprehensive strip steel inspection testing platform is used to simulate the actual situations of strip steel production line, and study CCD inspection technology for the surface of strip steel in the laboratory. The testing platform is installed with a conveyor table, which can clamp 300mmx300mm sheets of different thickness, and make rectilinear motion steadily at a high speed, with the uniform motion distance of greater than 300mm, and uniform speed of up to 200m/min. The light source and camera equipment are arranged around the testing platform, and the angle of light source and the distance between light source and test specimen are adjustable; the angle of photography instrument and the distance of the test specimen are also adjustable. The equipment has been used by Baosteel Research Institute.

 

CNC Power Electrostatic Spraying Device

The apparatus adopts CNC 2D mechanical moving device to clamp the spray gun or install the nozzle directly on the apparatus, with adjustable moving speed, direction and time, and controls the required film thickness and spraying area based on different parameter settings; in addition, the display screen can display and track the direction of spray gun during the operation (2D data or graph). The equipment has been used by Institute of Welding and Surface Technology, Baosteel Research Institute.

 

Automatic Grinding Device for Strip Steel

Currently, the users have increasingly high demand for the quality of strip steel (in particular automobile sheet) surface, and the steel mills adopt CCD to detect the quality of strip steel surface in general; however, it is required to grind the surface of strip steel manually before CCD detection so as to expose the surface defects fully. To this end, the Company designed an automatic grinding device specifically, which adopts two-side elastic compression while grinding based on the user's requirements to grind the strip steel from both sides, drags the grinding head with two coordinates (X,Y) numerical control system to simulate manual grinding track and route, thus grinding the surface of strip steel automatically. The device has been applied in 208 units of Baosteel successfully.

 

Insulation Enclosure for Silicon Steel Roll

This equipment is used to keep the steel roll warm, and make its temperature decline linearly, solve the problem in rapid decline of temperature, and reduce cracks on the edge and improve the yielding rate. The equipment has been applied by Baosteel successfully.

 

Straightness Measuring Device Mated for Roller Hydraulic Straightening Press

Measuring System of Roller Alignment Use For Straightening Machine

The mandrel straightening measuring system is composed primarily by guide rail, pinion and rack, measuring trolley, sensor bracket, AC servo motor, laser displacement sensor, integrated controller, industrial computers, etc., which is installed on the hydraulic straightening pressure machine, and the laser displacement sensor points to the surface of mandrel, and controls the computer and servo motor to drive the measuring trolley and sensor for uniform linear motion; the sensor scans the surface of mandrel constantly, which can record the offset data of mandrel surface accurately through one cycle of scanning, and then calculate the coordinates of the maximum bending points and offset after processing. It is possible to network with the straightener during the production, so as to improve the production efficiency and product quality, and provides an effective, objective, high-precision evaluation standard for measuring the straightness of mandrel. Straightness measurement precision: ≤ 0.5mm/m (full length≤2mm), (regardless of the deformation of press body). The equipment has been applied in Baosteel Changzhou Roller Co., Ltd. successfully.

 

CNC Heating Device for Steel Coil End

In order to avoid edge crack of cold-rolled steel coil (in particular for silicon steel coil) during uncoiling and edge cutting from affecting the quality of product, it is required to heat the edge of steel coil on the cold-rolled finishing production line, ensuring the edge of steel coil can reach a certain temperature during the uncoiling and edge cutting The equipment uses the mechanical arms with self-designed speed and controllable track to drive two heating plates to heat the two ends of steel coil (each heating plate is installed with 6 nozzles), and detects the flame size, heating time, operating trajectory and temperature of steel coil end in real time, and regulate the heating temperature automatically to meet the requirements for uncoiling the steel coil. Generally, the heating temperature can reach up to 80-100℃ for the range of edge of 60mm in width. The equipment has been put into operation in 1580 production line of Baosteel.

Main technical characteristics: adopt advanced CNC technology, servo motor as drive mode, control the operating trajectory and operating speed of the gas heating plate automatically, and ensure that the flame can cover the end of steel coil with different diameters effectively and evenly; control the target temperature, and regulate the air fuel ratio automatically.

Applicable steel type: oriented silicon steel, non-oriented silicon steel.

 

Steel Coil Sampling and Cutting Unit

The steel coil sampling unit (including the flame or plasma cutting system) is designated to sample the head of steel coil with the thickness greater than 6.0mm produced by hot-rolled plant. The sampled steel roil is dominated by thick high-strength steel (with the tensile strength of up to 1000Mpa), high strength weather-resisting steel, automotive steel and other products. The sampling can be completed automatically in combination of robot. The unit has been successfully applied in Baosteel, Valin LY Steel.

 

Roller Wiping Unit

The unit consists mainly of a wiping head, pressure mechanism, dedusting collection mechanism, dedusting pipe, dust processing unit, and electrical control system. It is mainly used on hot-rolled finishing and leveling unit, whose upper and lower supporting roll are installed with roller wiping unit, so as to clean the oxidized iron scrap on the surface of supporting roll and keep the roller surface clean. The unit is installed on the archway at the outlet of temper mill, and the wiping head is compressed on supporting roll surface via the hydraulic cylinder, synchronize the toothed pulley by motor drive when working, so that the ball-screw nut mechanism could move horizontally to scrub the entire length of roll surface. The equipment uses two cylinders to swing the wiping belt, and to wipe the iron oxidized powder and oxide skin on supporting roll. The wiping belt can be tensioned and replaced by two hand-wheels arranged at top and bottom manually. The ball-screw nut mechanism is installed with a telescopic shield. A dust removal system is used to collect the removed iron oxidized scrap. The equipment has been applied in Baosteel, Shougang, Chongqing Iron and Steel (Group) Co., Ltd, Benxi Steel Group Corporation and other domestic steel mills successfully.

 

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