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Molding material, molding structure and molding process for marine propeller manufacturing

A technology for marine propellers and molding materials, which is used in manufacturing tools, casting molding equipment, cores, etc., can solve the problems of reducing the mechanical properties of propeller products, unable to recycle waste foundry sand, sand mold moisture entering castings, etc., to achieve water content. Reduced, short hardening time, high sand strength effects

Active Publication Date: 2021-05-25
DALIAN MARINE PROPELLER CO LTD
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Problems solved by technology

[0006] According to the process method proposed by the above-mentioned prior art, on the one hand, the waste casting sand cannot be recycled, and on the other hand, it is easy to cause the water vapor in the sand mold to enter the casting, forming defects such as pores, oxidized slag inclusions, etc., and reducing the mechanical properties of the propeller product, etc. To solve technical problems, provide a molding material, molding structure and molding process for manufacturing marine propellers

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  • Molding material, molding structure and molding process for marine propeller manufacturing
  • Molding material, molding structure and molding process for marine propeller manufacturing
  • Molding material, molding structure and molding process for marine propeller manufacturing

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Embodiment Construction

[0059] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0060] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordina...

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Abstract

The invention discloses a modeling material, a modeling structure and a modeling process for marine propeller manufacturing, and relates to the technical field of propeller manufacturing, in particular to a modeling structure and process for manufacturing by adopting a recyclable modeling material. The molding material for marine propeller manufacturing comprises ester-hardened modified sodium silicate-bonded sand and CO2-hardened modified sodium silicate-bonded sand. According to a preparation method of the ester-hardened modified sodium silicate-bonded sand, 15% of fresh sand, 85% of reclaimed sand, 1.5-2.5% of modified sodium silicate and ester accounting for 15-20% of the modified sodium silicate are mixed according to the ratio. According to a preparation method of the CO2-hardened modified sodium silicate-bonded sand, 30% of fresh sand, 70% of reclaimed sand, 2-3% of modified sodium silicate and a hardening accelerator accounting for 20-30% of the modified sodium silicate are mixed according to the ratio.

Description

technical field [0001] The invention discloses a molding material, a molding structure and a molding process for manufacturing marine propellers, and relates to the technical field of propeller manufacturing, in particular to a molding structure and a manufacturing process using recyclable molding materials. Background technique [0002] With the implementation of the national sustainable development strategy, the concept of "green casting" has been deeply rooted in the hearts of the people, and the discharge of foundry waste sand is the biggest environmental protection problem faced by most foundry companies. Difficult, it is difficult to realize the reuse and regeneration of waste sand, so how to solve the problem of waste sand recycling in the water glass sand molding process has been perplexing the majority of foundry workers. [0003] Marine propellers are the core components of military and civilian ship transmission systems. Due to their complex shape, high dimensiona...

Claims

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Application Information

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IPC IPC(8): B22C1/18B22C9/02B22C9/12B22C9/22
CPCB22C1/188B22C9/02B22C9/123B22C9/22
Inventor 尚子博权林林姜元军于霄雷孙广敏张君
Owner DALIAN MARINE PROPELLER CO LTD
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