SU1313722A1 - Method for manufacturing fibrous heat-insulating articles with corrugated structre - Google Patents

Abstract

The invention relates to methods for the production of fibrous thermal insulation materials and can be found in ripiiMtMiciiiie t-- of the construction materials industry. The purpose of the invention is to improve the quality of products and reduce waste. (A method of manufacturing fibrous heat insulating products with a corrugated structure includes the production of a fibrous | -o carpet and its corrugation, and before the corrugation, the fiber carpet is transversely cut into strips of a given length equal to the width of the product that is fed to the corrugation a direction perpendicular to the direction of the movement of the original carpet, followed by a horizontal corrugated material. 1 illustration. S

Description

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This invention relates to methods for producing fiber heat insulating materials and may find application in the building materials industry.

The aim of the invention is to improve the quality of products and reduce waste.

The method is explained in the drawing.

The proposed method is ush, as follows.

Fibrous carpet 1 with a predominantly horizontal orientation of fibers with a constant transverse unequal density is cut into strips 2 of a given length, which are fed close behind each other in a direction perpendicular to the direction of movement of the original fibrous carpet, for corrugation.

The corrugated fibrous material is pressed in the horizontal direction, in this case the transverse inequality of the original fibrous carpet is leveled, after that the shape of the corrugated and prepressed material 3 is stabilized by piercing or heat treatment, then the finished material 4 is fed to the roll and packaging.

Example. The initial fibrous carpet arriving from the fiber deposition chamber with a width of 20,000 mm, thickness of 200 mm and an average density of 20 kg / m is compressed to remove residual deformations 4 times (to a thickness of 50 mm), then cut into transverse strips 1000 mm long after which, with the aid of transporting means, the direction of movement of the strips is changed by 90 °. Thus, for the next operation (corrugation) they come close to each other in the direction, perpendicular to the movement of the original carpet.

Corrugated material with a height of 100 mm is fed for sealing in the longitudinal direction to the horizontal pressing unit. After compaction, the material is fed to the firmware to finalize its shape. The finished material is cut to length and served for rolloning.

Depending on the method of stabilizing the material, a pre-scavenger or binder is introduced into the fiber carpet.

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The piercing material can be made with plates on one or both sides.

The products made by the proposed method have good equal density and regular geometric shape, made without waste fibrous material for the preparation of the side edges. The sum of the economic effect obtained due to these advantages is 222 thousand rubles.

The amount of production waste is determined by the width of the fiber deposition chamber in which the initial fiber carpet is formed and the dimensions of the finished products. In view of future trimming, the width of the conveyor for the fiber-irradiation chamber is 2100 mm with a finished product width of 1000 mm (longitudinal cutting in the middle). The two side edges are thus 100 mm or fibrous carpet. Taking into account that the fiber carpet is sub-standard on the edges (this is the reason for cutting), it is considered that the waste is not 5%, but 3-4%. When cutting the original carpet into stripes and changing the direction of their movement, there is no need for processing the side edges and all the material goes into business.

In order to reduce dusting in the case of flashing, various dedusting additives are introduced into the fiber carpet. In the case of a subsequent heat treatment, a binder is introduced into the original fiber carpet.

Claims (1)

Invention Formula A method of manufacturing fibrous heat insulating products with a corrugated structure, including obtaining a fibrous carpet and its corrugation, characterized in that, in order to improve product quality and reduce production waste, prior to corrugation, the fibrous carpet is transversely cut into strips of a given length equal to the width of the product, which served on the corrugation in the direction perpendicular to the direction of movement of the original carpet, followed by horizontal pressing of the corrugated material. , 06 DH DLLlOdogOll QOff