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GMT sheet production system for teaching experiments

A technology for production systems and experiments, applied to teaching models, educational tools, instruments, etc., can solve problems such as unfavorable teaching of new materials and product experiments, single design and application functions of composite material equipment, uneven heating of materials, etc. Flexibility, improved impregnation effect, reduced porosity effect

Inactive Publication Date: 2014-07-09
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are very few GMT production systems suitable for teaching and experimentation in colleges and universities. If imported production system equipment is used, for example: the composite material test production system imported by British Lilly Company has 3 million sets, which is expensive, difficult to master and difficult to maintain; The non-standard special fiber composite material production system designed by Jiangsu Hongye Machinery Co., Ltd. needs 1.8 million. Because domestic composite material equipment has technical defects such as single design and application functions, uneven heating of materials, and incomplete impregnation, and is biased toward industrialized production and manufacturing of large-scale equipment, Because of its large area and high price, it is not conducive to the development of new material teaching and product experiments in colleges and universities in my country

Method used

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  • GMT sheet production system for teaching experiments
  • GMT sheet production system for teaching experiments
  • GMT sheet production system for teaching experiments

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] Such as figure 1 As shown, a GMT sheet production system for teaching experiments, including a transmission system with a lower conveyor belt 9, and a heating and baking system, a heating and dipping system, and a cooling and setting system sequentially connected through the lower conveyor belt 9;

[0083] Such as figure 2 As shown, the adding and baking system includes a heating oil tank 15, a heating platen combination consisting of an upper heating platen 1 and a lower heating platen 2; a heat conduction oil cavity 6 is provided inside the upper heating platen 1 and the lower heating platen 2; A plurality of electric heating tubes 3 are installed inside the upper heating platen 1 and the lower heating platen 2; the lower conveyor belt 9 passes between the upper heating platen 1 and the lower heating platen 2;

[0084] Such as figure 1 , figure 2 As shown, the heating impregnation system includes at least one set of heating impregnation combination consisting of an...

application approach 1

[0094] Application scheme 1: process such as Figure 10 Shown:

[0095] (1) Material preparation: the weight of two sheets is 1000g / m 2 Ordinary PP mould, 1 sheet weighs 840g / m 2 Pure glass fiber felt, the material size is basically the same, and the PP mold, glass fiber felt, and PP mold are laid in order from top to bottom.

[0096] (2) Send the material laid in (1) into the composite material heating equipment. Before that, start the experimental teaching heating equipment, so that the equipment can be heated in advance and reach the preset temperature value (220-230°C) , after the substrate is conveyed to the ideal position of the oven, stop the conveyance, set the heating temperature (220-230°C) and heating time (5-10min), adjust the height of the template on the oven, so that there is a certain reserved space, Start to heat and plasticize the material, and observe the change of its expansion ratio, so that it is convenient to set the ideal heating time, and use the ...

application approach 2

[0102] Application 2: process such as Figure 11 Shown:

[0103] (1) Material preparation: (2+1) GMT sheet, a piece of polyester non-woven fabric, the material size is basically the same, and the GMT sheet and non-woven fabric are laid in order from top to bottom.

[0104] (2) Send the material laid in (1) into the composite material heating equipment. The composite material heating equipment should be started in advance so that the equipment can be heated in advance and reach the preset temperature value (220-230°C). Wait for the plate and After the fabric is delivered to the ideal position of the oven, stop the delivery, set the heating temperature (220-230°C) and heating time (5-10min), adjust the height of the upper template of the oven so that there is a certain reserved space, and start to process The plate is heated and plasticized, and the change of its expansion ratio is observed, so that it is convenient to set the ideal heating time, and the surrounding temperatu...

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Abstract

The invention discloses a GMT sheet production system for teaching experiments. The production system comprises a conveying system, a heating and baking system (a), a heating and dipping system (b) and a cooling and shaping system (c), wherein the conveying system is provided with a lower conveying belt (9), and the heating and baking system (a), the heating and dipping system (b) and the cooling and shaping system (c) are connected in sequence through the lower conveying belt (9); the heating and baking system comprises a heating oil tank (15) and a heating pressing plate assembly, and the heating pressing plate assembly is composed of an upper heating pressing plate (1) and a lower heating pressing plate (2); the heating and dipping system comprises at least one heating and dipping assembly, and each heating and dipping assembly is composed of an upper heating compression roller (4) and a lower heating compression roller (5); the cooling and shaping system comprises at least one cooling and shaping assembly, and each cooling and shaping assembly is composed of an upper cooling compression roller and a lower cooling compression roller. The production system is small in occupied area, low in cost, capable of achieving the effects of even heating and sufficient dipping and quite suitable for teaching research.

Description

technical field [0001] The invention belongs to the field of GMT sheet production, in particular to a GMT sheet production system for teaching experiments. Background technique [0002] Glass fiber reinforced thermoplastic composite sheet is referred to as GMT sheet. Usually, GMT plate forming is an important part of the plate production system. Large-scale equipment is used for continuous production. The equipment costs are high and the floor space is large, which causes a great burden on scientific research units and is not conducive to experimental teaching; Generally speaking, the large-scale equipment is sealed or semi-sealed during the molding process, and in this process, it seriously affects the monitoring and observation of its plasticization or molding process, especially the observation of the expansion ratio of the material, which is bound to affect the material studies have undue influence. [0003] Composite materials are green new materials, with light weigh...

Claims

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Application Information

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IPC IPC(8): G09B25/02
Inventor 韩旭杨旭静刘启明段书用陶友瑞鲁雄唐荣华
Owner HUNAN UNIV
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