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A kind of steel bar with heating function and its production and use method

A technology of reinforcement and function, applied in the field of civil engineering scientific research, can solve problems such as uneven temperature distribution and uneven magnetic field space

Active Publication Date: 2016-09-21
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The key step in the detection is to use electromagnetic induction to uniformly and accurately heat the steel bar, but because the excited magnetic field is not uniform in space, the temperature distribution of the steel bar after heating is not uniform

Method used

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  • A kind of steel bar with heating function and its production and use method
  • A kind of steel bar with heating function and its production and use method
  • A kind of steel bar with heating function and its production and use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: as Figure 1-5 As shown, a steel bar with heating function, including slotted semi-steel bar 1, heating wire 2, and heat-resistant resin binder 3; cut the original steel bar longitudinally and cut out a rectangular shape on the two cut steel bars Groove to form a slotted half steel bar 1; the full length of the heating wire 2 coated with the heat-resistant resin binder 3 is arranged in the rectangular groove of the slotted half steel bar 1; the heat-resistant resin binder 3 is filled Fill the gap of the groove of the slotted half steel bar 1; coat the heat-resistant resin adhesive 3 on the longitudinal cut surface of the slotted half steel bar 1 and bond the two slotted half steel bars 1 together.

[0029] The heating wire 2 is a tungsten wire.

Embodiment 2

[0030] Embodiment 2: as Figure 1-5 As shown, a steel bar with heating function, including slotted semi-steel bar 1, heating wire 2, and heat-resistant resin binder 3; cut the original steel bar longitudinally and cut out a rectangular shape on the two cut steel bars Groove to form a slotted half steel bar 1; the full length of the heating wire 2 coated with the heat-resistant resin binder 3 is arranged in the rectangular groove of the slotted half steel bar 1; the heat-resistant resin binder 3 is filled Fill the gap of the groove of the slotted half steel bar 1; coat the heat-resistant resin adhesive 3 on the longitudinal cut surface of the slotted half steel bar 1 and bond the two slotted half steel bars 1 together.

Embodiment 3

[0031] Embodiment 3: as Figure 1-5 Shown, a kind of manufacture method of the steel bar with heating function, the concrete steps of described method are as follows:

[0032] Step1, cut the original steel bar longitudinally and open a rectangular groove on the two cut steel bars to form a slotted half steel bar 1;

[0033] Step2. Arrange the full length of the heating wire 2 coated with the heat-resistant resin binder 3 in the rectangular groove of the slotted semi-rebar 1;

[0034] Step3, fill the gap of the groove of the grooved semi-rebar 1 with the heat-resistant resin binder 3;

[0035] Step 4. Coat the heat-resistant resin adhesive 3 on the longitudinal cutting surface of the slotted semi-reinforcement bar 1 and bond the two slotted semi-reinforced bars 1 together to form a reinforcing bar with heating function.

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Abstract

The present invention relates to a reinforcing steel bar with a heating function, and manufacturing and using methods thereof, and belongs to the civil engineering scientific research field. The reinforcing steel bar with a heating function comprises slotted half reinforcing steel bars, electric heating wires and a high temperature resin binder. An original reinforcing steel bar is longitudinally cut open and rectangular grooves are formed on the two pieces of reinforcing steel bars to form the slotted half reinforcing steel bars; the electric heating wires coated with the high temperature resin binder is fully placed inside the rectangular grooves of the slotted half reinforcing steel bars; filling the high temperature resin binder in gaps of the slotted half reinforcing steel bars; and coating the high temperature resin binder onto lengthwise cutting faces of the slotted half reinforcing steel bars and bonding the two slotted half reinforcing steel bars together. The reinforcing steel bars can be uniformly heated, and the heating temperature of the reinforcing steel bars can be accurately controlled; the reinforcing steel bar with the heating function can be connected into a circuit, and temperature rise temperature of the reinforcing steel bar can be controlled by controlling voltage of the electric heating wires and conduction time; the heating temperature of the reinforcing steel bar can be precisely and quantitatively controlled, and the reinforcing steel bar can be uniformly heated along a lengthwise direction.

Description

technical field [0001] The invention relates to a steel bar with a heating function and a method for making and using the same, which belongs to the field of scientific research of civil engineering. Background technique [0002] The research and development of non-destructive testing technology for the corrosion degree of steel bars, internal voids and steel cover thickness of reinforced concrete structures has become one of the important research fields of civil engineering. The commonly used research methods are: arranging a coil with AC power outside the reinforced concrete sample, heating the steel bar through electromagnetic induction technology, and judging the corrosion rate of the steel bar or the scope of the cavity according to the change of the concrete surface temperature field. The key step in the detection is to use electromagnetic induction to uniformly and accurately heat the steel bar, but because the excited magnetic field is not uniform in space, the temp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B3/18
Inventor 董卫苏志敏武亮
Owner KUNMING UNIV OF SCI & TECH
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