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CN-122007830-A - Reinforcing steel bar thread machining method and system

CN122007830ACN 122007830 ACN122007830 ACN 122007830ACN-122007830-A

Abstract

The application provides a method and a system for processing a steel bar thread, wherein the method comprises the steps of lubricating and limiting a steel bar processing end; the steel bar is axially extruded from the end to obtain a smooth surface, and the smooth surface is rolled. Through fixing the steel bar, limiting and peripheral lubrication are carried out on the section needing processing after fixing, axial extrusion is carried out from the end part of the steel bar, the part after extrusion is finished is changed into a smooth surface, rolling tooth treatment is carried out on the smooth surface, the process is finished, the original coarse dendritic crystal structure of the steel bar is damaged in the extrusion process, and uniform and fine equiaxial grains are formed through recrystallization, so that the plasticity and toughness of metal are improved. ‌, meanwhile, internal defects (such as bubbles, looseness or microcracks) of the steel bar can be forged by extrusion, the compactness of the material is improved, the mechanical property is further optimized, the strength of rolled threads formed after extrusion is improved, and the smoothness of thread teeth is better.

Inventors

  • WU SHUHUA

Assignees

  • 深圳市固力士建材有限公司

Dates

Publication Date
20260512
Application Date
20260409

Claims (7)

  1. 1. A method of machining a thread of a reinforcing bar, the method comprising: Lubricating and limiting the processing end of the steel bar; Axially extruding the reinforcing steel bars from the end parts to obtain smooth surfaces; and carrying out tooth rolling treatment on the smooth surface.
  2. 2. The method of claim 1, wherein the step of axially extruding the rebar from an end comprises: the extrusion treatment strength is 2-30Mpa.
  3. 3. The method of claim 2, wherein the rebar has a diameter of 12-22cm.
  4. 4. The method of claim 1, wherein the step of axially extruding the rebar from an end comprises: The extrusion treatment strength is 2-40Mpa.
  5. 5. The method of claim 4, wherein the rebar has a diameter of 25-50cm.
  6. 6. The method of claim 1, wherein the step of axially extruding the rebar from the end to form a smooth surface further comprises: and (5) rib stripping treatment is carried out.
  7. 7. A rebar threading system comprising a processor and a memory coupled to each other, the memory for storing a computer program, the processor for loading and executing the steps of the method of any of claims 1-6.

Description

Reinforcing steel bar thread machining method and system Technical Field The application relates to the technical field of steel bar thread machining, in particular to a steel bar thread machining method and a steel bar thread machining system. Background In large-scale construction projects such as bridges, subways, nuclear power, super-high buildings, water conservancy and the like, ribbed steel bars are required to be connected in a concrete structure, the parts of the ribbed steel bars required to be processed by threads are required to be removed firstly to form the threaded steel bars, and then the threaded steel bars are put into the projects for use. The inventors of the present application have found in long-term development that the rib is peeled off by cutting in the conventional process, and the smooth surface is rolled after peeling off, to finally form the screw portion of the reinforcing bar. However, according to the method for processing the screw thread of the steel bar, the cross section area of the original steel bar is small after the rib is stripped and rolled, the root of the screw thread is easily broken, the strength of the formed screw thread is low, and the finish of the screw thread is poor. Disclosure of Invention The application provides a processing method and a processing system for a steel bar thread, which are used for solving the problems of low strength and poor thread finish of the steel bar thread formed by removing ribs by a cutting process in the prior art. In order to solve the technical problems, the technical scheme adopted by the application is that the method for processing the steel bar threads is provided, wherein the method comprises the following steps: Lubricating and limiting the processing end of the steel bar; Axially extruding the reinforcing steel bars from the end parts to obtain smooth surfaces; and carrying out tooth rolling treatment on the smooth surface. In order to solve the technical problem, the application adopts another technical scheme that a steel bar thread machining system is provided, wherein the system comprises a processor and a memory which are mutually coupled, the memory is used for storing a computer program, and the processor is used for loading and executing the computer program. The application has the beneficial effects that the method and the system for processing the steel bar threads are different from the situation in the prior art, and the method comprises the steps of lubricating and limiting the processing end of the steel bar, axially extruding the end of the steel bar to obtain a smooth surface, and rolling the smooth surface. The steel bar to be processed is firstly added with lubricating oil and then is subjected to limiting fixation, axial extrusion is carried out from the end part of the steel bar, the part after extrusion is finished is changed into a smooth surface, rolling teeth treatment is carried out on the smooth surface, the process is finished, the original coarse dendritic crystal structure of the steel bar is damaged in the extrusion process, and uniform and fine equiaxial grains are formed through recrystallization, so that the plasticity and toughness of metal are improved. ‌, meanwhile, the internal defects (such as bubbles, looseness or micro cracks) of the steel bar can be forged by extrusion, the density of the material is improved, the mechanical property is further optimized, the strength of rolled threads formed after extrusion is improved, the finish of the threads is better, and the problems of low strength and poor finish of the threads of the steel bar formed by removing ribs by a cutting process in the prior art are solved. Drawings For a clearer description of the technical solutions in the embodiments of the application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the application, from which, without inventive effort, further drawings can be obtained for a person skilled in the art, in which: fig. 1 is a schematic flow chart of a method for processing a screw thread of a reinforcing steel bar according to the present application; Fig. 2 is a schematic structural view of an embodiment of a system for threading reinforcing steel bars according to the present application. Detailed Description The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art without making any inventive effort, are intended to be within the scope of the present application. It should be noted that, the technical solutions of the embodiments may be combined with each other, but