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Method for manufacturing large-capacity boiler load-bearing support device

A production method and large-scale boiler technology, applied in welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of long production cycle, affecting production efficiency, high cost, etc., optimize the production process, improve production efficiency, and reduce the cost of turning over Effect

Inactive Publication Date: 2013-09-04
SHANGHAI COSCO KAWASAKI HEAVY IND STEEL STRUCTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, not only the cost is high, the production cycle is long, and there are certain safety risks, but it will also affect the production efficiency of other stations on the production line.

Method used

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  • Method for manufacturing large-capacity boiler load-bearing support device
  • Method for manufacturing large-capacity boiler load-bearing support device
  • Method for manufacturing large-capacity boiler load-bearing support device

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Experimental program
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Effect test

Embodiment Construction

[0016] refer to Figure 1 to Figure 4 , this specific implementation adopts the following technical scheme: its production method is as follows: 1, when large-scale H-shaped steel is produced, according to the weld seam form and welding workload, with reference to the empirical data of similar products, calculate the anti-deformation amount;

[0017] 2. For the flange plate of large H-shaped steel, it is pre-rolled by hydraulic press, about 1 / 150, such as figure 1 ;

[0018] 3. For the angular deformation that may occur during welding, set the anti-deformation according to the form of the weld during assembly, such as figure 2 , the size of L1 is larger than the size of L2 after assembly;

[0019] 4. In order to cope with the possibility of excessive deformation after the back weld bead is cleaned by carbon planing, an asymmetrical welding groove design is adopted to increase the amount of front welding, such as image 3 , after anti-deformation is adopted, the welding def...

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Abstract

The invention relates to a method for controlling size accuracy, in particular to a method for manufacturing a large-capacity boiler load-bearing support device. The method comprises the steps of considering machining allowance of parts and important positioning points of an intersecting opening when materials are blanked, marking a datum point and a positioning point of each pipe through steel punching, marking the position of a steel punch mark through a marking pen, and marking the highest point, the lowest point and waist lines on the two sides of the intersecting opening at the intersecting opening of a steel pipe. The method features high-speed construction and accurate positioning on spatial positions, and is beneficial to improving working efficiency and reducing cost.

Description

Technical field: [0001] The invention relates to the field of manufacturing large-scale boiler load-bearing support equipment, in particular to a production method of large-scale boiler load-bearing support equipment. Background technique: [0002] The load-bearing support of large boilers is generally more than 30 meters long, more than 5 meters wide, and weighs more than 100 tons. Turn over. [0003] The main component of the load-bearing bracket is a large welded H-shaped steel, which needs to be welded on both sides, and most of them are full-penetration welds. The original production process is to turn over for the first time after the front welding is completed, clean the weld bead with a carbon planer, then weld the back weld, and then perform flame straightening. After assembling all the accessories on the back, turn over for the second time (in order to prevent deformation from affecting the assembly of the front accessories, welding is not allowed at this time), ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B23K31/02
Inventor 刘金杨祖伟刘绪明
Owner SHANGHAI COSCO KAWASAKI HEAVY IND STEEL STRUCTURE