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A method for manufacturing a lightweight micro-foaming molded protective cylinder product

A production method and technology for protecting the cylinder, which are applied in the direction of adhesives, etc., to achieve the effects of little decrease in mechanical properties and strength, improved safety, and high molding efficiency.

Active Publication Date: 2017-12-15
余姚中国塑料城塑料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] During the long-distance transport of ammunition, it is inevitable that due to the vibration of the vehicle, the ammunition will rub against each other or between the ammunition and the container, resulting in static charges. The accumulation of charges for a long time will cause huge safety accidents

Method used

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  • A method for manufacturing a lightweight micro-foaming molded protective cylinder product
  • A method for manufacturing a lightweight micro-foaming molded protective cylinder product
  • A method for manufacturing a lightweight micro-foaming molded protective cylinder product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) Preparation of antistatic raw materials.

[0045] (2) The preparation of antistatic raw materials is carried out according to the following process:

[0046] The main raw material specifications and manufacturers used in the preparation of antistatic materials are shown in Table 1.

[0047] Table 1 Raw Material Specifications and Manufacturers

[0048]

[0049] (2.1) Extrusion granulation process: Weigh 17.88kg of PA66 resin, 0.6kg of antistatic agent P18, 0.2kg of carbon black, 0.2kg of graphite, and 0.1kg of polytetrafluoroethylene. Antioxidant 20g, toughening agent 1kg; add to the high-speed mixer and mix, first stir at low speed for 10s, then stir at high speed for 20s, release it into the prepared bag, transfer to the twin-screw extruder to extrude and granulate, extrude The process parameters are shown in Table 2.

[0050] Table 2 Extrusion process of antistatic nylon 66 material

[0051]

[0052] Note: The extruder is not limited to the model, the sam...

Embodiment 2

[0067] (1) The preparation of the antistatic raw material is the same as in Example 1.

[0068] (2) The preparation process of the antistatic raw material is the same as in Example 1.

[0069] (2.1) The extrusion granulation process is the same as that in Example 1.

[0070] (2.2) Injection molding process: The raw materials produced through the (2.1) process need to be dried in an oven first, the thickness of the material layer is 2cm, the temperature of the baking material is 120°C, and the drying time is 5h, and then the micro-foaming injection machine Molded into products. The micro-foaming injection molding process is shown in Table 5;

[0071] Table 5 Protection cylinder micro-foam molding process

[0072]

[0073]

[0074] (2.3) The flocking process is the same as in Example 1.

[0075] Product qualification testing is the same as in Example 1.

[0076] (1) The detection method of the wear resistance of the flocking layer is the same as that in Example 1.

...

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Abstract

The invention discloses a production method of a light micro-foamed molded protective barrel product. The production method comprises the following steps of firstly, extrusion and granulation, namely weighing a raw material composition containing an antistatic agent and a wear-resistant agent, transferring the raw material composition to a double-screw extruder to extrude and granulate after mixing; secondly, injection molding, namely drying the granular material produced in the first step, then, molding in a micro-foaming injection machine to form a protective barrel product; and thirdly, flocking, namely carrying out electrostatic flocking on the inner wall of a base of the protective barrel in electrostatic flocking equipment. According to the production method, the selected electrostatic material is used as a raw material, and the wear-resistant agent is added in the formula, so that the wear resistance of the product is improved; the product is molded by using a micro-foaming injection process, so that the aim of reducing the weight is achieved; and finally, the inner wall of the product is additionally provided with an electrostatic flocking layer, so that the effects of wear resistance and buffering are taken, and the aim of comprehensive and safe transportation is achieved.

Description

technical field [0001] The invention relates to the field of injection machines and thermoplastic materials, in particular to a method for preparing a light-weight micro-foaming molded protection cylinder product. Background technique [0002] In recent years, more and more attention has been paid to the lightweight of weapons and equipment. The lightweight of weapons and equipment can not only improve the efficiency of energy utilization, but also improve the combat efficiency of weapons and equipment. In the context of lightweighting weapons and equipment, composite materials (including engineering plastics) have been widely used in military applications. [0003] Ammunition transportation is an important part of national security, and its security is affected by many factors. The main influencing factors include the impact of internal transport environment factors on transport items and the impact of external transport environment on transport environment. External envi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/08C08L27/18C08K13/02C08K3/04C08K5/134C08K5/526C09J133/00B29C45/00B29C45/78
CPCB29C45/0001B29C45/78B29C2945/76531C08K2201/014C08K2201/017C08L77/08C08L2201/04C09J133/00C08L27/18C08K13/02C08K3/04C08K5/1345C08K5/526
Inventor 吴炅张学锋王承刚何杰佘进娟李文春刘成阳
Owner 余姚中国塑料城塑料研究院有限公司
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