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CN-121972526-A - Manufacturing method of prestress ultra-high strength steel strand

CN121972526ACN 121972526 ACN121972526 ACN 121972526ACN-121972526-A

Abstract

The invention discloses a method for manufacturing a prestress ultrahigh-strength steel strand, which relates to the field of steel strand production and comprises the following steps of S1, preprocessing, namely cleaning, annealing, lubricating, surface processing and screening steel materials to prepare the steel materials required by drawing; according to the prestress ultra-high strength steel strand manufacturing method, after a steel wire passes through a supporting roller, the steel wire is wound on the outer surfaces of a plurality of groups of drawing rollers, a driving piece drives a rotating shaft to rotate, and a driving gear arranged on the rotating shaft is synchronously driven to rotate, so that when the driving gear rotates, a gear rod is driven to rotate, wherein the outer surface of the gear rod is in a thread shape, when the gear rod rotates, a sliding block arranged on the outer surface of the gear rod is driven to move up and down, one end of the sliding block is connected with the drawing rollers in a rotating mode, the position of the sliding block is properly adjusted when the sliding block moves, tension of the steel wire is adjusted, the steel wire is drawn, and the diameter of the steel wire is kept consistent when the steel wire is drawn.

Inventors

  • ZHANG FENGHUA
  • CHANG ZIXIN
  • HAO XU
  • LIU FENGYAO

Assignees

  • 天津腾海科技发展有限公司

Dates

Publication Date
20260505
Application Date
20260302

Claims (10)

  1. 1. The manufacturing method of the prestress ultra-high strength steel strand is characterized by comprising the following steps of: s1, preprocessing, namely cleaning, annealing, lubricating, surface treatment and screening the steel to prepare the steel required by drawing; s2, tension coiling, namely placing the steel into a tension coiling device and starting drawing under proper tension; S3, drawing the die, namely enabling the steel to gradually deform into filaments by passing the steel through the die and applying enough tension; s4, cooling treatment, namely, during the drawing process, the steel is subjected to extremely large deformation stress and friction heat; S5, drawing lubrication, namely, in the drawing process, the steel is required to be subjected to lubrication treatment so as to reduce friction force and prevent surface defects; in the step S2, the tension coiling device comprises a base (1), wherein a driving piece (11) is arranged at the upper end of the base (1), an adjusting rod (13) is rotatably arranged at one end of the driving piece (11), meanwhile, a supporting roller (16) is arranged at the tail end of the adjusting rod (13), a telescopic piece (14) is rotatably arranged at the middle part of the adjusting rod (13), and one end, far away from the adjusting rod (13), of the telescopic piece (14) is rotatably connected with one end of the driving piece (11); A drawing assembly (2) assembled at the output end of the driving member (11), and drawing the steel wire through the drawing assembly (2); The drawing assembly (2) comprises a rotating shaft (21) connected with the output end of the driving piece (11), a driving gear (22) is arranged on the outer surface of the rotating shaft (21), a cylinder (23) is rotatably arranged at one end of the driving gear (22), a plurality of groups of limiting rods (25) are arranged on the outer surface of the cylinder (23), a baffle plate (28) is fixedly arranged at the upper end of the limiting rods (25), a gear rod (24) is rotatably arranged at one end of the baffle plate (28) and positioned at one side of the limiting rods (25), the outer surface of the lower end of the gear rod (24) is meshed with the outer surface of the driving gear (22), a sliding block (26) is slidably arranged on the outer surface of the limiting rods (25), a drawing roller (27) is rotatably arranged at one end of the sliding block (26), and a steel wire is drawn by adjusting the position of the drawing roller (27); the transmission assembly (3) is assembled at the tail end of the rotating shaft (21), meanwhile, one end of the transmission assembly (3) is provided with a partition plate (211), and one end of the partition plate (211) is provided with a plurality of groups of pressing pieces (212) for smearing lubricant on the surface of the steel wire.
  2. 2. The method for manufacturing the prestressed ultra-high-strength steel strand according to claim 1, wherein the outer surface of the rotating shaft (21) is rotated with a power member (221), and the outer surface of the power member (221) is slidably connected with the inner wall of the driving gear (22).
  3. 3. The method for manufacturing the prestressed ultra-high strength steel strand according to claim 2, wherein a clamping block (214) is fixedly arranged at the output end of the power piece (221), a plurality of groups of slots (222) are formed in the inner wall of the driving gear (22), meanwhile, a sliding groove (213) corresponding to the slots (222) is formed in the outer surface of the rotating shaft (21), and the outer surface of the clamping block (214) is in sliding connection with the slots (222) and the inner wall of the sliding groove (213).
  4. 4. A method of manufacturing a prestressed ultra-high strength steel strand according to claim 1, characterized in that the end of the cylinder (23) remote from the driving gear (22) is fixedly provided with a fixing plate (29).
  5. 5. The method for manufacturing the prestressed ultra-high-strength steel strand according to claim 1, wherein the transmission assembly (3) comprises a bottom plate (31) fixedly connected with the rotating shaft (21), and a movable rod (32) is rotatably arranged at one end of the bottom plate (31) far away from the rotating shaft (21).
  6. 6. The method for manufacturing the prestressed ultra-high strength steel strand according to claim 5, wherein a movable plate (33) is fixedly installed on the outer surface of the movable rod (32) and near one end of the bottom plate (31), and holes (34) are formed in two ends of the movable plate (33).
  7. 7. The method for manufacturing the prestressed ultra-high strength steel strand according to claim 6, wherein positioning blocks (35) are slidably mounted on the inner walls of the two holes (34), and one end of each positioning block (35) close to the inner wall of the bottom plate (31) is in a tooth pitch shape.
  8. 8. The method for manufacturing the prestressed ultra-high strength steel strand according to claim 7, wherein a circular ring (36) is slidably mounted on the outer surface of the movable rod (32) and on one side of the movable plate (33), an annular groove (361) is formed in the outer surface of the circular ring (36), and an adjusting block (37) is slidably mounted on the inner wall of the annular groove (361).
  9. 9. The method for manufacturing the prestressed ultra-high-strength steel strand according to claim 8, wherein a push rod (38) corresponding to the positioning block (35) is rotatably installed on the outer surface of the circular ring (36), and one end of the push rod (38) far from the circular ring (36) is rotatably connected with one end of the positioning block (35).
  10. 10. The method for manufacturing the prestressed ultra-high-strength steel strand according to claim 9, wherein an elastic member (39) is sleeved on the outer surface of the movable rod (32), one end of the elastic member (39) is connected with the upper end of the circular ring (36), and the other end of the elastic member is connected with the tail end of the movable rod (32).

Description

Manufacturing method of prestress ultra-high strength steel strand Technical Field The invention relates to a steel strand production technology, in particular to a method for manufacturing a prestress ultra-high strength steel strand. Background With the rapid development of national infrastructure, the quality requirement on products is higher and higher, steel strands are steel products formed by twisting a plurality of steel wires, and are common base materials in bridges, buildings, water conservancy, energy sources and geotechnical engineering. In the building construction process, a plurality of steel strands are often bundled together for use in order to increase strength, steel is required to be put into a tension coiling device before the current steel strands are bundled, and drawing is started under proper tension, in the tension coiling device, the steel wire passes through a series of equipment such as idler wheels, guide wheels and tension wheels to ensure stable transmission and correct direction of the steel wire, but the tension distribution of the steel wire in the drawing process can be uneven, the diameter, hardness and surface quality of the steel wire can be inconsistent, the quality of a final product is influenced, breakage or other defects can be easily generated when the steel wire is drawn, and the stress concentration of the steel wire can be easily generated due to excessive tension, so that the break or the formation of microcracks can be easily generated, and the break or the relaxation of the steel wire can be generated in the drawing process, so that the drawing effect and the product quality are influenced, and the prestress ultra-high-strength steel manufacturing method is developed. Disclosure of Invention The invention aims to provide a method for manufacturing a prestressed ultra-high strength steel strand, which aims to solve the defects in the prior art. In order to achieve the purpose, the invention provides the following technical scheme that the method for manufacturing the prestress ultra-high strength steel strand comprises the following steps: s1, preprocessing, namely cleaning, annealing, lubricating, surface treatment and screening the steel to prepare the steel required by drawing; s2, tension coiling, namely placing the steel into a tension coiling device and starting drawing under proper tension; S3, drawing the die, namely enabling the steel to gradually deform into filaments by passing the steel through the die and applying enough tension; s4, cooling treatment, namely, during the drawing process, the steel is subjected to extremely large deformation stress and friction heat; S5, drawing lubrication, namely, in the drawing process, the steel is required to be subjected to lubrication treatment so as to reduce friction force and prevent surface defects; In the step S2, the tension coiling device comprises a base, wherein a driving piece is arranged at the upper end of the base, an adjusting rod is rotatably arranged at one end of the driving piece, meanwhile, a supporting roller is arranged at the tail end of the adjusting rod, a telescopic piece is rotatably arranged at the middle part of the adjusting rod, and one end of the telescopic piece, which is far away from the adjusting rod, is rotatably connected with one end of the driving piece; the drawing assembly is assembled at the output end of the driving piece, and the steel wire is drawn through the drawing assembly; The drawing assembly comprises a rotating shaft connected with the output end of the driving piece, a driving gear is arranged on the outer surface of the rotating shaft, a cylinder is rotatably arranged at one end of the driving gear, a plurality of groups of limiting rods are arranged on the outer surface of the cylinder, a baffle is fixedly arranged at the upper end of the limiting rods, one end of the baffle is positioned at one side of the limiting rods and rotatably provided with a gear rod, the outer surface of the lower end of the gear rod is meshed with the outer surface of the driving gear, meanwhile, a sliding block is slidably arranged on the outer surface of the limiting rods, a drawing roller is rotatably arranged at one end of the sliding block, and steel wires are drawn by adjusting the positions of the drawing rollers; the transmission assembly is assembled at the tail end of the rotating shaft, meanwhile, one end of the transmission assembly is provided with a partition plate, and one end of the partition plate is provided with a plurality of groups of pressing pieces for smearing lubricant on the surface of the steel wire. As a further optimization scheme of the invention, the outer surface of the rotating shaft is rotated with a power piece, and the outer surface of the power piece is in sliding connection with the inner wall of the driving gear. As a further optimization scheme of the invention, the output end of the power piece is fixedly provided with the clamping