Preparation device and preparation method of metallic aluminum coating on surface of carbon fiber

A technology of surface metal and preparation device, which is applied in the directions of carbon fiber, fiber processing, textiles and paper making, etc., can solve the problem of inability to realize continuous preparation of aluminum coating on carbon fiber surface, difficult to effectively control the thickness and uniformity of aluminum coating, and damage to the mechanical properties of carbon fiber. It can improve the surface quality of the coating, prevent the reduction of mechanical properties, and achieve good production quality.

Active Publication Date: 2017-05-10
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the equipment required for physical and chemical vapor deposition is expensive, the operation is complicated, the coating preparation time is long, and the energy consumption is large, while the electroplating and chemical plating methods have strict requirements on the activity of the coated metal, especially on the surface of carbon fiber. When preparing metal aluminum coatings, electroplating and electroless plating methods cann

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  • Preparation device and preparation method of metallic aluminum coating on surface of carbon fiber
  • Preparation device and preparation method of metallic aluminum coating on surface of carbon fiber

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preparation example Construction

[0036] A method for preparing a metal aluminum coating on a carbon fiber surface, comprising the following steps:

[0037] (1) Close the valve at 12 places of the discharge port or block the discharge port 12, and check the airtightness of the melt tank 5 by first pressurizing and then maintaining the pressure;

[0038] (2) Slowly add the melted aluminum liquid into the melting material tank 5 through the feed port 2, add the molten aluminum liquid to reach two-thirds of the volume of the melting material tank 5, and then stop feeding, and tighten the feeding bolt 1;

[0039] (3) Turn on the cooling element 11 switch to keep the temperature constant after cooling the cooling chamber 7 to the set temperature;

[0040] (4) Observe the speed table 10 and adjust the speed regulator to keep the fiber drawing speed stable to 5.0-10.0mm / s;

[0041] (5) Pass protective argon gas into the axial through hole 15 of the side wall of the molten material tank 5 through the air vent 16;

...

Embodiment 1

[0046] (1) Close the valve at the discharge port 12 at the bottom of the melt tank 5 or block the discharge port 12, first pressurize and then maintain the pressure in the melt tank 5 through the pressurization port 4, and observe the changes in the pressure gauge 3, In order to check the airtightness of the device;

[0047](2) After the air tightness inspection of the device is completed, add a certain amount (two-thirds of the volume of the melting tank 5) of molten aluminum into the melting tank 5 through the feed port 2, and then tighten the feeding Bolt 1;

[0048] (3) Turn on the switch of the cooling element 11, and set the temperature of the cooling chamber 7 to 0°C;

[0049] (4) After the cooling environment reaches the set temperature, open the speed regulator of the roller 9, set the drawing speed of the carbon fiber to 5.0mm / s, slowly increase the drawing speed, and make it steadily reach the set speed value;

[0050] (5) After the fiber filament speed is stable ...

Embodiment 2

[0055] (1) Close the valve at the discharge port 12 at the bottom of the melt tank 5 or block the discharge port 12, first pressurize and then maintain the pressure in the melt tank 5 through the pressurization port 4, and observe the changes in the pressure gauge 3, In order to check the airtightness of the device;

[0056] (2) After the air tightness inspection of the device is completed, add a certain amount (two-thirds of the volume of the melting tank 5) of molten aluminum into the melting tank 5 through the feed port 2, and then tighten the feeding Bolt 1;

[0057] (3) Turn on the switch of the cooling element 11, and set the temperature of the cooling chamber 7 to 0°C;

[0058] (4) After the cooling environment reaches the set temperature, open the speed regulator of the roller 9, set the drawing speed of the carbon fiber to 8.0mm / s, slowly increase the drawing speed, and make it steadily reach the set speed value;

[0059] (5) After the fiber filament speed is stable...

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Abstract

The invention discloses a preparation device and a preparation method of a metallic aluminum coating on the surface of a carbon fiber. The device comprises a molding device for molding an aluminum coating on the surface of the carbon fiber, wherein a cooling device for cooling the carbon fiber coated with the aluminum coating is arranged at the lower side of the molding device; a collection device for collecting the carbon fiber coated with the n aluminum coating is arranged at the lower side of the cooling device; the molding device comprises a melt tank and a thermal insulation plate; a plurality of axial through holes through which the carbon fiber passes are uniformly formed in the side wall of the melt tank; a discharge hole is arranged between the axial through holes and the inside of the melt tank; an overflow opening is arranged between the axial through hole and the melt tank; and a feeding hole and a pressurizing hole are formed in the top of the melt tank. Fast and continuous preparation of the aluminum coating on the surface of the carbon fiber can be achieved by controlling the drawing rate of the fiber and the extrusion pressure of molten aluminum; the contact time of the carbon fiber and the molten aluminum is shortened; and reduction of the mechanical property of the carbon fiber is effectively prevented.

Description

technical field [0001] The invention belongs to the technical field of surface coating preparation devices, and in particular relates to a preparation device and method for a metal aluminum coating on the surface of carbon fibers. Background technique [0002] Carbon fiber is a new type of fiber material with low density, high strength and high modulus ratio with a carbon content of more than 95%. It has good wear resistance, heat resistance, electrical conductivity, lubricity and acid and alkali resistance. It is a kind of reinforcement material with great development potential and broad application prospect. Its composite materials are widely used in aerospace, mechanical engineering and bioceramics and other fields. However, when carbon fiber is used to reinforce metal matrix composites, its application is limited due to the poor wettability and chemical compatibility between the fiber and the matrix metal. Therefore, in order to improve the bonding performance between ...

Claims

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Application Information

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IPC IPC(8): D06M11/83D06M101/40
CPCD06M11/83D06M2101/40
Inventor 赵雪妮杨建军王旭东张黎何富珍王婉英张靖张伟刚
Owner SHAANXI UNIV OF SCI & TECH
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