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High-strength nylon formula for blower impeller and preparation method thereof

A blower blade, high-strength technology, applied to the components of the pumping device for elastic fluid, machine/engine, mechanical equipment, etc., can solve the problems of breaking the dynamic balance of the blade, severe sediment friction, turbulent flow interference, etc. Achieve the effect of low production cost, light specific gravity and extended service life

Inactive Publication Date: 2011-01-12
重庆市泰伯铸型尼龙有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the small thickness of the thin plate, when the impeller rotates at high speed, the friction between the blade and the conveying medium and the dust and sediment carried by it is severe, and the wear is severe, resulting in perforation, gaps and even deformation of the blade, which breaks the dynamic balance of the blade operation and causes turbulence. flow interference, increased vibration, and in severe cases, the fan disintegrates, causing equipment accidents

Method used

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  • High-strength nylon formula for blower impeller and preparation method thereof
  • High-strength nylon formula for blower impeller and preparation method thereof

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Embodiment 1

[0021] Embodiment 1: compare through trial and error, screen out the best formulation embodiment of the present invention as:

[0022] Two kinds of base materials respectively account for the weight percent of whole base material as:

[0023] Caprolactam 80-82%, laurolactam 18-20%

[0024] The percentage by weight that each auxiliary material accounts for the whole nylon formula is:

[0025] Glass beads 4% carbon black 0.3%

[0026] NaOH 0.2% Triphenylmethane polyisocyanate 3.6%

[0027] HPT 3% DNPD 0.16%

[0028] PTFE 7% Melamine 2.5%

[0029] Molybdenum disulfide 0.4% Phthalocyanine blue 0.04%

[0030] The molded nylon prepared by the best formula of the invention has excellent physical and chemical properties and mechanical properties, and each index can meet the needs of the blower impeller.

[0031] The test results are as follows:

[0032] Tensile strength 87-95MPa Bending strength 96-110MPa

[0033] Shear strength 72-79MPa Notch impact strength 880kg / m 2 above ...

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Abstract

The invention provides a high-strength nylon formula for a blower impeller and a preparation method thereof. Base stocks of the formula comprise caprolactam and laurolactam. Besides, glass beads undergoing activation treatment are added in the base stocks to improve the wearability. Meanwhile, a certain amount of plasticizer, dispersant, lubricant, buffering agent, antioxidant, catalyst and cocatalyst are added. During the pouring and molding, balanced pressurization is carried out so as to improve physical and chemical properties. The invention realizes once pouring and molding, easy batch production, low cost, light weight and energy consumption reduction. The impeller is an integrated body, does not need the welding of components, has strong wearability and good safety. The nylon can be substituted for steel, aluminum and other metal materials in the preparation of the blower impeller.

Description

technical field [0001] The invention relates to a solid polymer material, in particular to a high-strength nylon used for a blower impeller and a method for making the blower impeller. Background technique [0002] Cast nylon is a general-purpose solid polymer engineering plastic. It has the advantages of low density, light weight, good toughness, strong corrosion resistance, and easy one-time casting. As a component, it is widely used in the machinery industry. However, compared with some metal materials with excellent properties, its physical and chemical properties are slightly inferior. It is the purpose of the present invention to research and develop new nylon formulations, explore reasonable technological conditions, and seek suitable preparation methods. [0003] For the present invention, submit to Chongqing Science and Technology Information Center for novelty search and retrieval, and detect 14 relevant literature materials. For example, CN10185918 "A Preparatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/28F04D29/02
Inventor 赵冰
Owner 重庆市泰伯铸型尼龙有限责任公司
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