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Manufacturing method for ultra-long and ultra-thick circular plate

A manufacturing method and arc plate technology, which are applied to manufacturing tools, arc welding equipment, auxiliary devices, etc., can solve the problems of poor mechanical properties of arc plates, large machining workload, and high mold manufacturing costs, and reduce manufacturing costs. , Improve welding quality, easy to operate

Active Publication Date: 2009-11-18
QINGDAO BEIHAI SHIPBUILDING HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has a wide range of applications, but the casting blank may have defects such as pores and slag inclusions, and the mechanical properties of the produced circular arc plate are relatively poor, and the mold manufacturing cost is high, and the machining workload is large. The total production cost higher

Method used

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  • Manufacturing method for ultra-long and ultra-thick circular plate
  • Manufacturing method for ultra-long and ultra-thick circular plate
  • Manufacturing method for ultra-long and ultra-thick circular plate

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0032] exist image 3 Shown in is to forge four section steel cylinder 4 at first, in figure 2 1. cylinder, 2. cylinder, 3. cylinder and 4. cylinder are used to indicate that four sections of cylinder 4 are connected together to prepare for welding. Each section of cylinder 4 is machined with a machine tool respectively, and the inner circle radius of the cylinder is 440 mm, the thickness is 120 mm, the length is 3 meters, and the surface roughness is 6.3, and the groove is machined at the end of the cylinder, such as Figure 4 shown. Put the cylinder ② and the cylinder ③ on the rolling tire frame 5, the structure of the rolling tire frame is as follows: Image 6 Shown: two small brackets 52 are respectively connected to the bottom of the tire frame plate 51, the upper end of the tire frame plate 51 is in the shape of an arc, the inner diame...

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Abstract

A manufacturing method for ultra-long and ultra-thick circular plate is suitable for the steel circular plate which has a length more than 10 meters and has a thickness more than 100 millimeters. The method comprises the following steps: forging a plurality of segments of ultra-thick cylinders; carrying out mechanical processing to make the inner diameter, the wall thickness and the surface roughness accord with the requirements; and processing bevels at two ends. The invention is characterized in that the plurality of segments after procession are placed on a rolling jig bed 5; an interface part is fixed with a fixing plate; then the butt welding is performed after the bevels are added with ceramic gaskets 6; the long cylinder is prepared; the cutting is performed; and the ultra-long ultra-thick circular plate with the required dimension is manufactured. The invention has the advantageous of capability of manufacturing the ultra-long and ultra-thick circular plate with the length of more than 10 meters and the thickness of more than 100 millimeters, having high mechanical property of the manufactured plate, and having simple and convenient manufacturing method, easy operation and reduced manufacturing cost. The manufacturing method for ultra-long and ultra-thick circular plate can be widely used in the watercraft manufacturing industry and other mechanical chemical industry.

Description

1. Technical field [0001] The invention relates to a method for manufacturing a steel arc plate, in particular to a method for manufacturing an ultra-long and ultra-thick arc plate with a length of more than 10 meters and a thickness of more than 100 mm. 2. Background technology [0002] In ship construction, part of the support structure of the ship needs to rotate around the arc plate fixed on the hull, especially represented by the jacket launching barge, and special operations are completed in this way. [0003] The arc plate is thick and long, so it is not easy to manufacture and process. At present, there are mainly two methods for the production of arc plates: [0004] One, adopt the press pressing method. Use a press to bend the steel plate to make a circular arc plate. This method is convenient and efficient. However, due to the limitation of pressure machinery, the production of arc plates has great limitations in thickness and length. For the production of ult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/02B23K37/053B23K37/047B23K33/00B23K9/035B23K9/095B23K37/04
Inventor 孟祥富张玉明
Owner QINGDAO BEIHAI SHIPBUILDING HEAVY IND CO LTD
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