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A magnetic fluid device and method for rust prevention of steel

A magnetic fluid and device pair technology, applied in the processing of building materials, building insulation materials, construction, etc., can solve the problems of short rust prevention time, high cost, affecting appearance, etc., to extend the service life, resist external loads, increase The effect of durability

Active Publication Date: 2020-04-24
重庆弗雷西节能技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Common antirust methods for steel bars are wrapped with cement mortar or low-grade concrete plus an outer plastic film, but the antirust time is short and affects the appearance; antirust agents can also be used, but the cost is higher

Method used

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  • A magnetic fluid device and method for rust prevention of steel
  • A magnetic fluid device and method for rust prevention of steel
  • A magnetic fluid device and method for rust prevention of steel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] see Figure 1-5 , a magnetic fluid device for rust prevention of steel, which includes a magnetic fluid device 8, the magnetic fluid device 8 includes a flexible sleeve 2, a magnetic fluid 1 is wrapped inside the flexible sleeve 2, and the two sides of the flexible sleeve 2 The lateral symmetry is provided with a card slot 3, and the card slot 3 sets the flexible sleeve 2 on the outside of the steel bar 6 that needs to be rust-proof through the locking hoop assembly, and the steel bar 6 is poured inside the concrete, and the magnet is installed on the steel bar 6 Block 9. The magnetic fluid device with the above-mentioned structure can be used for rust prevention and repair of cracked steel components inside the concrete or steel components exposed to water, because the magnetic fluid itself can quickly absorb the cracked steel components after magnetization treatment, thereby preventing Cut off contact with water or air. This method is used in the antirust or repair ...

Embodiment 2

[0044] The method for rust-proofing the internal steel bars of the structure under construction by using any one of the magnetic fluid devices for steel anti-rust, is characterized in that it comprises the following steps:

[0045] StepA1: make flexible sleeve 2 with elastic material;

[0046] StepA2: Fill the inside of the flexible sleeve 2 with ferrofluid 1 or the mixture of ferrofluid and antirust paint. After the filling is completed, seal the interfaces at both ends with locking collar components to prevent the overflow of the ferrofluid 1, thereby forming the ferrofluid device 8;

[0047] StepA3: Place the steel bars 6 that have been treated with antirust evenly, and then place two magnet blocks 9 on both sides of the magnetic fluid device 8, so that the internal magnetic fluid or the mixture of magnetic fluid and antirust paint is adsorbed on the two sides of the inner wall of the flexible sleeve 2. side, and then unscrew the locking hoop assembly at both ends of the de...

Embodiment 3

[0052] Using any one of the magnetic fluid devices for rust prevention of steel to destroy the exposed steel reinforcement rust prevention method for internal reinforcement or components of cracked beams, plates, and column structures, it is characterized in that it includes the following steps:

[0053] StepB 1: First find the area where the component has cracks or the exposed steel bars are exposed, and then use a marker pen to mark the middle position 50cm-60cm away from the crack area;

[0054] StepB2: Use a manual drilling machine to drill a hole at the marked position, the hole diameter is 4cm-6cm, and the length of the hole is the thickness of the concrete. After the hole is completed, use the concrete perspective instrument 12 to extend the magnet block 9 along the hole into the steel bar inside the concrete. , and the small hole is blocked with a magnetic rod 10, one end of the magnetic rod 10 is connected with the magnet block 9, and finally the outer layer is painted...

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Abstract

The invention discloses a magnetic fluid device for rust prevention of steel and a method. The magnetic fluid device comprises a magnetic fluid device body, the magnetic fluid device body comprises aflexible sleeve, a magnetic fluid is wrapped with the flexible sleeve, clamping grooves are symmetrically formed in the two sides of the flexible sleeve, through a locking hoop assembly, the clampinggrooves enable the flexible sleeve to sleeve steel bars needing to be subjected to rust prevention, the steel bars are poured into concrete, and magnets are mounted on the steel bars. The usage quantity of magnetic fluid rust-prevention paint mixtures used in the magnetic fluid device for rust prevention of the steel and the method is small, the cost is low, the rust prevention time is long, and the appearance of the steel is not affected.

Description

technical field [0001] The invention relates to a magnetic fluid device and method for rust prevention of steel, which belongs to the technical field of rust removal of steel. Rust prevention for stay cables of bridges, etc. Background technique [0002] Corrosion of steel bars is the main element that causes insufficient durability of concrete structures. Corrosion of steel bars will lead to the loss of steel bar section, reduce the cross-sectional area of ​​stressed steel bar, and reduce the bonding force between steel bar and concrete. The cracking and falling off of the protective layer caused by the corrosion and expansion of steel bars will further reduce the bearing area of ​​reinforced concrete components and greatly reduce the quality of cooperative work between steel bars and concrete, which is the main factor that endangers the life and safety of concrete structures. Therefore, it is necessary to strengthen the antirust treatment of steel bars in construction pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/64E04G21/00E04G23/02
CPCE04B1/642E04G21/00E04G23/02
Inventor 刘杰申晶张罗送李莉李洪亚孙涛黎照高素芳谢晓康唐宏宇
Owner 重庆弗雷西节能技术开发有限公司
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