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A method for producing a thin film

A manufacturing method and thin film technology, applied in the field of thin film manufacturing, can solve the problems of heavy screen changer load and unsatisfactory thin film quality, etc., and achieve the effect of high quality

Active Publication Date: 2019-04-16
GUANGDONG SHICHENG PLASTIC MACHINERY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In view of the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide a film production and manufacturing method, which aims to solve the defects that the quality of the film in the film manufacturing process in the prior art cannot meet the requirements and the load of the screen changer is large

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  • A method for producing a thin film
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  • A method for producing a thin film

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Embodiment Construction

[0032] In order to make the object, technical solution and effect of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0033] The invention provides a thin film production and manufacturing method, such as figure 1 shown, including the following steps:

[0034] Step S1, rotating the film raw material at a predetermined rotating speed, and performing heat treatment while rotating, to obtain a raw material melt.

[0035] Step S2, the raw material melt is extruded and heated, then filtered, and the filtered raw material melt is fed into a film mold to obtain a film sheet.

[0036] The rotation of the screw transports the raw materials forward to the extruder, and the extrusion of the extruder and the heating ...

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Abstract

The invention provides a thin film producing and manufacturing method. A thin film raw material rotates under the reserved rotating rate, heat treatment is carried out while rotation is carried out, and raw material melt is obtained; the raw material melt is extruded and heated and then filtered, filtered raw material melt is fed into a thin film mold, and a thin film piece is obtained; the thin film piece is subject to surface cooling, surface clearing and sizing treatment in sequence; the thin film piece subject to cooling sizing and surface clearing is wound through a winding machine, and a thin film product is obtained; through the method, in the manufacturing process, the raw material melt is filtered two times, the heating temperature is controlled, and a thin film with the high quality can be manufactured.

Description

technical field [0001] The invention relates to the field of thin film manufacturing, in particular to a method for manufacturing lithium battery membranes. Background technique [0002] Film products are common products in daily life. Usually, the lithium battery film manufacturing method used in the prior art is as follows: first mix the raw materials, melt them through an extruder, filter the molten raw materials, and put them into a forming device to form a film. , but the above method still has the following disadvantages: (1) It affects the quality of the film, because the raw material is heated twice, and its main performance indicators such as tensile strength and elongation decrease; [0003] (2) During the heating process, the melt is only roughly filtered once, not only the load pressure of the filter screen is relatively high, the frequency of changing the screen is high, but also the filtering effect is poor. [0004] Therefore, prior art awaits further improve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C48/00B29C48/25B29C48/92B29L7/00
CPCB29C48/08B29C48/25B29C48/92B29C2948/92028B29C2948/92152B29C2948/92704
Inventor 张春华秦志红
Owner GUANGDONG SHICHENG PLASTIC MACHINERY
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