Explosion welding repair method of infusible uncommon metal composite board

A technology of rare metal plates and rare metals, which is applied in welding equipment, metal processing, metal processing equipment, etc., and can solve the problems of high price of clad metals, scrapping of composite plates or equipment, etc.

Inactive Publication Date: 2008-01-23
南京三邦新材料科技有限公司
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Problems solved by technology

Due to the high price of the clad metal of this series of composite panels, once the material has a defect that affects the use of the equipment during the manufacture and use of the metal composite panel, it will be a big problem to repair, and it is likely that a small defect will cause the composite panel or The equipment is scrapped, because the vast majority of refractory rare (including precious metals and alloys) metals and ordinary steel cannot be welded and repaired by ordinary welding methods

Method used

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  • Explosion welding repair method of infusible uncommon metal composite board

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Embodiment approach

[0011] The explosive welding repair method of the refractory rare metal composite plate is as follows: when installing on site, the rare metal composite steel plate is used as the lower layer of the substrate, and the rare metal plate is placed on the defective part. First, the support gap between the two plates is increased by 8mm, and the edge Support gaps, parallel placement, doubler boards are 20mm larger than the defect area, to meet the needs of uniform force distribution on the entire board, to ensure that the final repair area is welded at one time, and in order to prevent explosives from burning the doubler board surface during the explosive compounding process, the protective layer must be Thickened to 0.5-1mm. The thickness of the rare metal plate is 1.5-16mm, the thickness of the base plate is 8-100mm steel plate, the main explosive is 2# rock explosive, and the detonation velocity is 2200-3500mm / s. After the surface of the rare metal plate is protected, 2# rock ex...

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Abstract

An explode welding repairing method which is hard to dilute metal compound board, firstly, the thickness of hard-diluting metal board is larger than the original board material by 0.5 to 1mm, the area of board material is larger than a defect zone by 20 to 60 mm2; secondly, proceed fine polishing to the compound board at the position under epair; thirdly, put rare metals on the surface under epair, the compound board under epair is made as the lower layer of base board; fourthly, the rare metal board and a placode under epair, the enlarged supporting gas between the two boards adopts edge supporting, the gap is of 7 to 10mm and laid in parallel; fifthly, the rare metal board surface after protecting is distributed with explode evenly, the protecting layer uses lubricate resin adding thinner, the thickness of the protecting layer equals to 0.5 to 1mm; sixthly, the size of the fire point is controlled below the diameter of 15mm; seventhly, after exploding compound, the invention is level to the main material after heat process, flattening and repairing and abrasion of the connection edge.

Description

technical field [0001] The invention relates to the repair and preparation of a series of metal composite boards, in particular to the repair of defective metal composite boards by means of an explosive composite method, and belongs to the field of metal composite board manufacturing. Background technique [0002] Metal composite panels are currently widely used in petroleum, chemical, pharmaceutical, shipbuilding, electric power, metallurgy and other industries. With the continuous development of material science and equipment manufacturing technology, acetic acid, nitric acid, hydrochloric acid, urea, hydrogen peroxide, polyoxymethylene and chlorination More and more refractory rare metal composite panels are being used in strong corrosion equipment in polyethylene and other production facilities. This series of composite panels has strong corrosion resistance and high economic efficiency. Due to the high price of the clad metal of this series of composite panels, once the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/08B23K20/24B23K20/26B23K101/16B23K103/08
Inventor 邓家爱周景蓉陈寿军杨振宇张海军
Owner 南京三邦新材料科技有限公司
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