A manufacturing method of a large-scale stern casting structure of a ship

A manufacturing method and large-scale technology, applied in ship construction, hull, stern post, etc., can solve problems such as increased processing difficulty, difficulty in ensuring accuracy, warping and distortion, etc., to achieve shorter production cycle, high precision, and easy control Effect

Active Publication Date: 2021-08-17
GUANGZHOU WENCHONG SHIPYARD CO LTD
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  • Abstract
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Problems solved by technology

For such a large casting, the casting manufacturer believes that the mold is larger than the conventional scale, which exceeds the processing capacity of the equipment. Even if it can be processed, the casting is too thin and flat (in order to control the length, the casting is at the narrowest point of the 6.5-meter waterline. The maximum width is only 450mm), due to the uneven cooling of the casting, it is prone to warping and distortion, the deformation will be large, and the accuracy is difficult to guarantee. In view of the increasing difficulty of processing, the manufacturer's quotation is 23% higher than the conventional quotation

Method used

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  • A manufacturing method of a large-scale stern casting structure of a ship
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  • A manufacturing method of a large-scale stern casting structure of a ship

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right" etc. is based on the orientation or positional relationship shown in the drawings, and is only for It is convenient to describe the present invention and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be co...

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Abstract

The invention provides a method for manufacturing a large-scale stern casting structure of a ship, which includes the following steps: cutting the large-scale stern casting structure of a ship along the transverse direction to form upper and lower parts, and performing the upper part and the lower part respectively casting process; a claw-shaped connection frame is set between the upper part and the lower part; the upper part and the lower part are respectively welded to the claw-shaped connection frame to form the ship stern structure. The manufacturing method can realize precise processing of large castings, and has short manufacturing period and low cost.

Description

technical field [0001] The invention relates to the technical field of ship building, in particular to a method for manufacturing a large stern casting structure of a ship. Background technique [0002] At present, the shipping market is sluggish. It is one of the most effective means to compete by reducing the operating cost of ships and improving the economic performance of ships. Optimizing the line shape of the bow and stern of the ship and reducing the resistance of the ship can reduce the power of the main engine and reduce fuel consumption at the same speed, so as to achieve the above goals. After optimizing the line shape of the bow and stern, the line shape of the ship becomes very thin in a considerable range above the stern post outlet, which directly leads to a large increase in the shape of the stern casting, usually more than 5 meters long and 4 meters wide, and some The length even reaches 6 meters and the width exceeds 5 meters. Such large castings have gre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B3/40B63B73/20B63B73/43
CPCB63B3/40
Inventor 吴俊红何小慧陈莉陈高杨商平徐劲杜巧玲
Owner GUANGZHOU WENCHONG SHIPYARD CO LTD
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