Metal structure corrosion damage composite material bonding repairing method
A metal structure and composite material technology, applied in anti-corrosion coatings, metal processing equipment, coatings, etc., can solve problems such as increasing the cost of use and maintenance, and achieve the effect of strong designability, avoiding secondary damage and less weight increase
Inactive Publication Date: 2019-07-19
中国人民解放军海军航空大学青岛校区
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This will undoubtedly increase the cost of maintenance
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[0029] Attached below Figure 1-5 , a metal structure corrosion damaged composite material bonding repair method of the present invention will be described in detail below.
[0030] The invention provides a metal structure corrosion damage composite material bonding repair method, the repair method is suitable for the metal structure corrosion damage 1 repair, the prepared resin material 2 (or added chopped glass fiber or metal powder reinforced resin material 2) Fill the corrosion pit and then bond the composite laminate patch 3 . The composite material laminate patch 3 may be a cured composite material laminate, or it may be laid layer by layer by a wet laying method. After curing, the composite material laminate patch 3 is finally obtained.
[0031] Specific steps are as follows:
[0032] 1) The corrosion damage 1 is treated, and the corrosion products are completely removed by mechanical grinding or mechanical grinding combined with chemical reagents.
[0033] 2) Surfac...
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The invention provides a metal structure corrosion damage composite material bonding repairing method, and belongs to the field of metal structure damage repairing. The repairing method is suitable for repairing the corrosion damage of a metal structure, and the method comprises the steps of adopting a prepared resin material, or a resin material added with cut up glass fiber, or a resin materialreinforced by metal powder to fill the corrosion pit, and then bonding composite material laminated plate patching pieces, wherein the composite material laminated plate patching pieces are selected form solidified composite material laminated plates, or obtained by being laid layer-by-layer and solidified in a wet laying method. According to the method, the resin material is filled at the structure corrosion damage position and the composite material laminated plates are bonded to carry out emergency repairing and peacetime repairing, so that the method has the advantages that the secondary damage is avoided, the stress concentration is relieved, the corrosion resistance and fatigue resistance are improved, the weight gain is less, and the designability is strong; and furthermore, aimingat the damage with large corrosion size, the method can meet the rigidity requirement at the corrosion damage position.
Description
technical field [0001] The invention belongs to the field of metal structure damage repair, in particular to a metal structure corrosion damage composite material bonding repair method. Background technique [0002] The metal structure is corroded by the chemical or electrochemical action of the environmental medium. The occurrence of corrosion will not only bring direct economic damage, but also destroy the ecological environment. After the metal structure is corroded, the detachment of the corrosion product and the body will lead to a reduction in the thickness of the structural section and a decrease in the structural bearing capacity. If left untreated, corrosion can progress further and eventually lead to structural failure. Although a lot of investment has been made in the corrosion protection of metal structures, it is still difficult to completely avoid the occurrence of corrosion. After corrosion occurs, it is very important to repair the structure in time to rest...
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IPC IPC(8): B23P6/00C09D201/00C09D5/08C09D7/61B24B27/033B24B19/00
CPCB23P6/00B24B19/00B24B27/033C09D5/08C09D7/61C09D7/70C09D201/00
Inventor 赵培仲谭晓明戴京涛王德苏洪波张丹峰
Owner 中国人民解放军海军航空大学青岛校区