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Welding type propeller blade processing method

A processing method and propeller technology, applied in the direction of rotating propellers, sustainable manufacturing/processing, rotary propellers, etc., can solve problems such as increased manufacturing costs and easy breakage of blades

Inactive Publication Date: 2006-12-13
江创葵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, propellers for marine or wind power generation are manufactured by casting. Since the thickness of the blades changes, the casting process is relatively strict. Such blades are also easy to break during use. If the casting process is made of stainless steel The requirements are high, the manufacturing cost increases, and there are many problems in this domestic technology

Method used

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  • Welding type propeller blade processing method

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Embodiment Construction

[0007] like figure 1 As shown, the processing method of the welded propeller blade is: design the shape of the blade 2 on the propeller hub 1 according to the propeller, select a plurality of stainless steel plates 3, and the stainless steel plates 3 can be stainless steel plates or stainless steel round steel, square steel, Profiles, etc., one of the plates is used as the base plate to press out both sides of the blade surface and the blade back of the blade, and the other plates are punched and welded. When the first layer of plate 3 is welded to the bottom plate through the welding hole 4 and fills the welding hole with solder 5 until it reaches the design thickness of the blade 2, it is welded together with the blade cover after grinding and polishing to form a structure consisting of more than two layers. The paddle is made of stainless steel sheet.

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Abstract

The invention discloses a process for preparing welded airscrew blade, comprising following steps: designing blade shape according to airscrew, choosing multi-piece stainless board, extruding blade surface and under leaf taking one sheet as base plate, punching and welding other sheet, adding sheet on leaf back and blade surface layer by layer, welding bottom sheet through welding point and filling welding point with welding material until reaching the designed blade thickness, polishing and buffing and forming welded blade and leaf cover with more than two layers of stainless steel. The invention is characterized by convenient and fast production and good toughness, and produced airscrew can effectively increase ship speed, the drag force is large and it can also save oil.

Description

Technical field [0001] The invention relates to a processing method for welded propeller blades used for marine and wind power generation. Background technique [0002] At present, propellers for marine or wind power generation are manufactured by casting. Since the thickness of the blades changes, the casting process is relatively strict. Such blades are also easy to break during use. If the casting process is made of stainless steel The requirements are high, the manufacturing cost increases, and there are many problems in this domestic technology. Contents of the invention [0003] The purpose of the present invention is to provide a simple, low-cost, durable and welded propeller blade processing method. [0004] In order to achieve the above object, a processing method of a welded propeller blade according to the present invention is: design the shape of the blade according to the propeller, select a plurality of stainless steel plates, and use one of the plates as th...

Claims

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Application Information

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IPC IPC(8): B23P15/04B63H1/26F03D11/00F03D80/00
CPCY02E10/722Y02E10/72Y02P70/50
Inventor 江创葵
Owner 江创葵