Hovercraft body watertight riveting method
A technology of watertight riveting and hovercraft, which is applied in the direction of air cushion, engine sealing, engine components, etc., can solve the problems of easily damaged hull components, limited waterproof performance, and easy water seepage at the bottom of the hull, so as to improve the tightness and waterproof performance of the hull , the effect of prolonging the service life
Inactive Publication Date: 2018-06-05
上海飞浪气垫船有限公司
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Problems solved by technology
[0004] Similar to the side wall hovercraft provided by the above technical solution, in the actual production process, the hull is mostly formed by riveting and welding; since the hull is not integrally formed, its waterproof performance is limited, and water seepage is prone to occur at the bottom of the hull during use In some cases, water seeps into the hull and easily damages the hull components, thus greatly reducing the service life of the hovercraft
Method used
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[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0031] See attached Figure 1-2 , a method for watertight riveting of a hovercraft hull, comprising the following steps in sequence:
[0032] (1) Pretreatment step: set the low-melt sheet 5 between the two plates 1 to be riveted, then drill the two plates 1, form rivet holes on the two plates 1 and the low-melt sheet 5, and The two plates 1 are initially positioned.
[0033] Among them, the low-melting sheet 5 is preferably made of Sn-Bi alloy. The melting point of the Sn-Bi alloy is roughly in the range of 139°C-232°C. It belongs to a low-melting alloy material, and it has good plasticity and ductility. Often used as low temperature solder. After the drilling is completed, the two plates 1 to be riveted are preliminarily positioned by spot welding with pins, and the relative positions of the two plates 1 are determined to ensure the correctness of the sub...
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Abstract
The invention discloses a hovercraft body watertight riveting method and belongs to the field of hovercrafts. The method includes steps of pretreatment, cleaning, first-time riveting, hot melting andsecond-time riveting. A low-melting-point sheet made of Sn-Bi alloy is arranged between two plates to be riveted, the diameters of rivets are 3mm, 4mm, 5mm or 6mm, and the diameters of rivet holes are3.1mm, 4.1mm, 5.1mm or 6.2mm correspondingly; a polysulfide rubber belt is pressed and flatly and evenly laid between the plates at least and fixedly connected with the same through rivets, four sides of the polysulfide rubber belt exceed an overlapping circumference of the plates by not small than 5mm, and the exceeding portion of the polysulfide rubber belt is cut off after riveting is completed. The hovercraft body watertight riveting method is convenient to operate, low in cost and conducive to improving sealability and waterproofness of a hovercraft body and prolonging the service life of a hovercraft.
Description
technical field [0001] The invention relates to a hovercraft, in particular to a watertight riveting method for the hull of the hovercraft. Background technique [0002] Hovercraft, also known as "aircraft", is a kind of air-cushion vehicle supported by air at the bottom of the ship. It is mainly used for water navigation and ice navigation, and can also land on some relatively smooth land terrain and floating docks. . [0003] The utility model patent with the Chinese patent announcement number CN205652126U discloses a side wall type hovercraft, which includes a left side wall and a right side wall arranged on both sides of the bottom of the hull, and a front baffle and a front baffle are arranged between the left side wall and the right side wall. The height of the rear baffle, the downward extension of the front and rear baffles is less than the height of the downward extension of the left and right side walls respectively, and the left side wall, the right side wall, th...
Claims
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IPC IPC(8): B60V3/06F16J15/10
CPCB60V3/06F16J15/104
Inventor 陶裕辉
Owner 上海飞浪气垫船有限公司