51results about How to "Does not affect production rhythm" patented technology

The invention discloses an installing method for a bridge crane in an enclosed environment workshop, and belongs to the technical field of hoisting device installing. The installing method includes the steps that a crane beam rail in the original workshop is retested, and a main beam supporting frame used for containing and assembling a main beam is manufactured; devices on the main beam are assembled through an auxiliary crane, the main beam is hoisted through a large crane, after the main beam is installed, end beams of the main beam are not connected, two large cranes are located on the two sides of the end beams, and hoisting lugs of two truck-mounted cranes are arranged at the ends of a main trolley; after the main trolley is evenly hoisted to be in place, assembling is carried out; and installing of the main beam bridge crane is completed. According to the installing method, the requirement for a site in the workshop is not high, the roof of the workshop does not need to be dismantled, the large crane is not used, ground assembling is rapid, hoisting is once achieved, the working efficiency is high, and the upper-air operational quantity is small; and the installing method has the beneficial effects that the practical hoisting time is short, the practicability is high, and the like.

The invention discloses a UV code spraying device of a steel tube. The UV code spraying device of the steel tube comprises a UV bar code spray printing assembly, a number spray printing assembly and a UV solidifying assembly, wherein the number spray printing assembly, the UV bar code spray printing assembly and the UV solidifying assembly are sequentially installed in the advancing direction of the steel tube sprayed with a code from right to left. Numbers and bar code information are marked on the surface of the steel tube, and a unique identify label is given to the steel tube; the UV bar code has the advantages of being good in adhesive force and not prone to abrasion, and can be well applied to track steel tubes one by one in an online mode; the UV solidification is adopted, so that the bar code is dried instantly, the production rhythm is not affected, and an original production process can be continued in a seamless mode; the tracking of identifications of the steel tubes one by one is improved, and the code spraying is the basic link of the identification tracking in the production process of the steel tubes; the UV code spraying device of the steel tube is not restricted to being used in a production line of the steel tubes, and can also be applied to a production line of steel boards or other production lines with bad conditions.

The invention discloses a method for increasing the cutting fixed length yield of a casting machine. The method for increasing the cutting fixed length yield of the casting machine comprises the stepsthat the count of a drive roller of a sector-shaped segment serves as a basis, the data is sent to a casting flow control system and a casting machine cutter control system through communication to be subjected to data and logic processing, blank length measuring calculation is carried out, and the method serves as a cutting fixed length measuring manner. By means of the method for increasing thecutting fixed length yield of the casting machine, the cutting fixed length yield of the casting machine is increased, the steelmaking production cost is reduced, the normal production rhythm is notaffected while the cost is reduced, meanwhile, no extra requirement is mentioned for equipment precision, and good popularization value is achieved.

The invention discloses a test method of oxidation burning loss rate of a billet steel processed by a steel rolling heating furnace. The method comprises the following steps: 1) weighing a steel sample, and recording mass of the steel sample; 2) placing the steel sample in a test module, integrally placing the test module and the steel sample on an upper surface of the billet steel which is goingto be placed in the furnace for being heated; 3) placing the test module and the steel sample into the furnace with the billet steel, after being heated step by step in the heating furnace, taking outthe test module and the steel sample with the billet steel, placing the steel sample in water for cooling, cooling to normal temperature and then taking out the steel sample, wiping up iron scales onthe surface; 4) drying the iron scales wiped up, weighing the dried steel sample, and recording the mass of the steel sample; 5) calculating the oxidation burning loss rate of the steel sample according to change of mass of the steel sample before and after being placed in the heating furnace. The test method of oxidation burning loss rate of the billet steel, provided by the invention, is simpleand easy to carry out and can test the oxidation burning loss rate of steels of different types; the module can be used repeatedly for many times; and a simple and effective method for actual measurement of data of oxidation burning loss of the billet steel is provided.

The invention discloses a spraying supporting frame and a spraying device and belongs to the technical field of coating spraying. The supporting frame comprises a supporting rod; a height adjusting device is arranged on the supporting rod; and a universal ball is arranged at the bottom of the supporting rod. According to the supporting frame, by arranging the universal ball, the requirement of axial constant speed walking of the supporting frame on the inner wall of a mould cavity which rotates with the constant speed is met; by arranging the height adjusting device, the requirement that a supporting pushing rod reaches the level is met; and meanwhile the supporting frame is simple in structure, can be quickly mounted at the front end of the pushing rod and prone to disassembling, and does not affect the production rhythm.

The invention relates to an on-line heat treatment technology of steel pipe production, in particular to an internal cooling device and method for steel pipe on-line cooling. According to the internalcooling device and method for steel pipe on-line cooling, the internal cooling device for spraying water from the head part or the tail part into a steel pipe is arranged at the front part, the backpart or the middle part of a steel pipe on-line spraying ring cooling device, and a movable inner spraying axial flow cooling device is arranged at the gap position in the steel pipe on-line sprayingring cooling device, wherein the movable inner spraying axial flow cooling device (2) comprises an up-and-down lifting driving device (24), a front-and-back movement driving device (23), a support (22) and a movable inner spraying axial flow spray pipe (21), so that the temperature difference between the inner wall of the steel pipe and the outer wall of the steel pipe is reduced, the on-line cooling uniformity is improved, the comprehensive mechanical property of the steel pipe is effectively improved, the specification of steel pipes capable of being cooled can be expanded, and the uniformity of the temperature of the inner wall and temperature of the outer wall and the consistency of the radial structure of steel pipe on-line cooling are realized, the production rhythm of on-line hot rolling of the steel pipe is not influenced, and the production efficiency is improved; the production of double-length steel pipes or triple-length steel pipes can also be met; and the length of the steel pipe capable of being cooled is close to 40m or even longer.

The invention relates to a method for controlling widmannstatten structure in upgrade of C-Mn steel. The heating temperature is 1170-1180 DEG C, the soaking temperature is 1150-1160 DEG C, the tapping temperature is controlled at 1130-1140 DEG C, the finish rolling and initial rolling temperature is 810-930 DEG C, the finish rolling temperature is guaranteed to be 780-800 DEG C, accumulated reduction rate in finishing rolling is 50-70%, the cooling temperature is 760-780 DEG C, cooling speed is 10-15 DEG C / s, former 4 groups of collectors are used for forced cooling, the cooling intensity of the former 4 groups of collectors is 2000-3500m<3> / h, the last 6 groups of collectors are used for weak cooling, the cooling intensity of the last 6 groups of collectors is 1500-2500 m<3> / h, and the red temperature is 610 DEG C-640 DEG C. According to the method, the defect of widmannstatten structure in upgrade production of C-Mn steel is better overcome, widmannstatten structure is improved obviously, and the toughness and plasticity of the rolled steel plate are improved obviously.

The invention provides a rail beam type thermal centering machine, and relates to the field of seamless steel pipes. The rail beam type thermal centering machine comprises a frame, and a stabilizing device, a support bracket and a centering device mounted in the frame; the frame comprises a rail beam horizontally arranged, and two support pieces vertically arranged; two ends of the rail beam are respectively supported on the two support pieces; the rail beam is positioned above a centering center line, and is parallel to the centering center line; the stabilizing device and the centering device are arranged along the centering center line, and are both mounted on the rail beam; and the support bracket is correspondingly arranged below the stabilizing device, and is lower than the position of the centering center line. The rail beam type thermal centering machine further comprises a distance adjusting device capable of adjusting the distance between the support bracket and the rail beam. The rail beam type thermal centering machine can selectively center pipe blanks to reduce influence on the production beat.

The invention discloses an online strip shape quality assessment device and method for a temper mill and belongs to the technical field of hot rolling. The online strip shape quality assessment device for the temper mill comprises an online quality inspection platform, an observation ruler, and an operation table, wherein the online quality inspection platform is arranged at an outlet of the temper mill, the observation ruler is arranged on the online quality inspection platform, and the operation table is opposite to the online quality inspection platform. The online strip shape quality assessment device and method for the temper mill can be used for judging the status of the strip shape of flattened strip steel online in real time; measurement is carried out without a halt, the rhythm of production is not influenced, the status of the strip shape of the strip steel can be accurately judged, and operating personnel can organize regulation and control over the strip shape of the strip steel in time; thus, the strip shape quality is improved, the rhythm of production is improved, and the secondary flatting rate of the wave shape is lowered.

The invention relates to the field of hot delivery of continuous casting billets, in particular to a lifting rotary type billet feeding device. The device is characterized by comprising an inclined face sliding rail (1), a chain (2), a rotating baffle (3), a shaft 1 (4) , a cast billet (5), a shaft 2 (6), a fixed sliding rail (7), a gear shaft (8) and a gear (9). The rotating baffle (3) is fixed to the chain (2) by the shaft 2 (6), and the cast billet (5) is supported by the rotating baffle (3) in the process of sliding down along the inclined face sliding rail (1) and conveyed to the lowest position of the fixed sliding rail (7) at a certain speed. The device is compact in structure, stable in operation, safe and reliable.

The invention discloses a control method for edge skin upwarp of hot-rolled steel plates. The control method comprises the following steps: the heating temperature of plate blanks of the hot-rolled steel plates is controlled to be not higher than 1200 DEG C, and the heating time is not higher than 200 minutes; the width reducing quantity of a plate blank width determiner is adjusted; the width reducing quantity of a second-grade vertical roller is adjusted; and the plate blanks of the hot-rolled steel plates are rolled by adopting the adjusted temperature and width. The control method for edgeskin upwarp of the hot-rolled steel plates effectively reduces the heating energy consumption through reducing the heating temperature of the plate blanks and shortening the furnace time, meanwhile,can reduce the burning loss of the plate blanks, improves the yield, can reduce the production cost, optimizes the width reducing quantity of the plate blank width determiner and the width reducing quantity distribution of the second-grade vertical roller, is free of influencing normal production rhythm, and meanwhile, is free of additional requirements on the equipment precision and excellent inpopularization value.

The invention provides a steel ladle full-course covering and uncovering device and a molten steel carrying device. The steel ladle full-course covering and uncovering device comprises a fixed stand column, a lifting hydraulic cylinder, a lifting stand column, a rotation driving motor, a slewing bearing, a rotary frame, a transverse moving hydraulic cylinder and a transverse moving trolley. The fixed stand column is fixed on a platform; the lifting stand column is connected onto the fixed stand column in a sleeving manner; the lifting hydraulic cylinder drives the lifting stand column to go up and down along the fixed stand column; the rotary frame comprises a vertical rod and a horizontal rod connected with the vertical rod; the bottom of the vertical rod and the top of the lifting stand column are connected through the slewing bearing; the rotation driving motor is fixed on the lifting stand column and drives the slewing bearing to rotate so as to drive the rotary frame to rotate; the transverse moving trolley is positioned on the horizontal rod; and the transverse moving hydraulic cylinder drives the transverse moving trolley to move along the horizontal rod. The steel ladle full-course covering and uncovering device has low requirements for clearance above a steel ladle, is free of impact during covering and uncovering, and is low in equipment failure rate, small in maintenance quantity and smooth in production.

The invention discloses a metal disk saw for sawing small-section finished product steel, which is designed for improving the rigidity, the sawing precision and the sawing efficiency of a metal saw. The metal disk saw for sawing small-section finished product steel is of a box type frame structure, wherein a tabletop clamping device is arranged on one lateral side of the box type frame structure, and a saw head feeding device and a saw head assembling device are both embedded into the box type frame structure, so that the rigidity of equipment is increased, sawing force is converted into internal force, and influence to equipment foundation is reduced; a fixed pressing block and a movable pressing block which are mutually matched to clamp to-be-sawn steel are good in clamping effect, so that the sawing precision is improved; and a saw blade fixing mechanism is used for fixedly arranging a saw blade below a steel clamping plane, namely a saw head is in underneath type arrangement, and the saw blade cuts from bottom to top and quickly withdraws after sawing, thus avoiding influence to the production rhythm of a working face and improving production efficiency.