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Explosive welding method for large-area lead-steel composite board

An explosive welding and large-area technology, applied in welding equipment, welding/welding/cutting items, non-electric welding equipment, etc., can solve the problems of interface melting and vaporization, soft lead hard to support, surface burns, etc., to increase the strength of the double board , realize the effect of large-area welding and broad application prospects

Active Publication Date: 2011-05-18
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide an explosive welding method for large-area lead-steel composite plates, to solve the problems of soft lead that is difficult to support, serious surface burns, interface melting and vaporization, etc., so that the large-area lead produced by this method -Steel composite panels have good composite quality

Method used

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  • Explosive welding method for large-area lead-steel composite board
  • Explosive welding method for large-area lead-steel composite board

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Embodiment Construction

[0025] Such as figure 1 As shown: the base steel plate 6 and the double-layer lead plate 5 are polished with a polishing wheel or emery cloth to remove the metal oxide on the surface to expose the metallic luster, and the base steel plate 6 is placed on the clay foundation 7, and the double-layer lead plate 5 It is bonded with the metal plate 2 as a whole, and placed above the base steel plate through the support 3, and the explosive 4 is placed on the upper surface of the metal plate 2. Use No. 8 industrial electric detonator 1 to detonate, and obtain lead-steel composite board by explosive compounding. Based on the three embodiments of the present invention, better composite effects are obtained, see Table 1 for details.

[0026]

[0027] Table 1 is based on three embodiments of the present invention

[0028]

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Abstract

The invention discloses an explosive welding method for a large-area lead-steel composite board, in which a base steel board and a composite lead board are adopted. The method comprises the following steps of: adding a high-strength metal board on the surface of the composite lead board, and bonding the composite lead board and the high-strength metal board together with adhesives; and proportioning special explosive as follows: 45-48 parts of expanded ammonium nitrate, 48-51 parts of sodium chloride and 4-6 parts of pearlite, ensuring a detonation velocity range of 1200m / s-1500m / s and adopting slop type explosive distribution at a far end. The method disclosed in the invention realizes the support of the lead board so that the explosive welding of the large-area lead-steel composite board can be implemented; and the method has the advantages of eliminating negative effects of surface burn and boundary effect on explosive composite, ensuring that the lead-steel composite board has the primary composite rate being higher than 98% and higher bond strength.

Description

[0001] technical field [0002] The invention relates to a technology in the field of metal composite material manufacturing, in particular to an explosive welding method for large-area lead-steel composite plates. Background technique [0003] Lead is a non-ferrous metal with low melting point and low hardness. It has strong attenuation ability to vibration, sound waves and X-rays. It has good corrosion resistance in certain environments or media. Lead plates are used in various fields of national economy Widely used, such as batteries, radiation protection, dilute sulfuric acid container lining, electrodes, etc. Due to the low strength of the lead plate itself, its application in engineering structures is limited. Therefore, the composite plate composed of lead and steel perfectly solves this engineering application problem, and thus has broad application prospects. [0004] The traditional production methods of lead-steel composite panels include pouring method, ele...

Claims

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Application Information

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IPC IPC(8): B23K20/08B23K103/18
Inventor 邓光平侯发臣徐宇皓李军韩刚刘金涛
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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