SU1447663A1 - Method of manufacturing mineral wool sewn mats - Google Patents

Abstract

The invention relates to the industry of building materials, in particular, to the production of thermal insulation products of operational rigidity. The purpose of the invention is to improve the quality of products. The method includes the formation of a mineral wool Carpet, from which elementary cylinders with a diameter greater than the thickness of the products are rolled up using a coil device. They form a continuous thermal insulation layer, which is coated with plates, for example, of glass fiber canvas. Stitched with roving of glass yarns parallel seams with a pitch of the seam, not a multiple of the diameter of the elementary cylinder .; but

Description

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The invention relates to the industry of thermal insulating building materials and can be used for the manufacture of mineral wool; mats.

The purpose of the invention is to improve the quality of products.

The method of manufacturing mineral wool pierced mats is carried out as follows.

A mineral wool carpet of unlimited length with a horizontal arrangement of fibers, into which a dedusting unit has been inserted, cuts in the transverse direction into strips that are fed into roll-out 1 when leaving the fiber deposition chamber; its device, where they are folded into separate cylinders of increased elasticity of diag. rtrom is larger than the product taldrina combined in a continuous heat insulating layer; on which plates are applied on one or two sides, and a layer together with Them is fed to a piercing machine, where they are pressed and stitched with parallel piercing seams with a pitch with a cage smaller than the diameter of an elementary cylinder.

The stitch pitch is chosen on the basis of the conditions for ensuring the flashing of all the elementary cylinders entering the assembly and excluding the deflection of the circum-. masonry at the joints of cylinders.

The proposed method of producing mineral wool matting mats allows the fibrous layer to be oriented along Archimedes' spirits, placing one on another areas of this layer, which allows, by summing the thickness of the carpet sections, to averaging longitudinal and transverse fluctuations in the density of the original carpet, providing uniform heat-insulating properties along the length of the cylinder. The round shape of the elementary cylinder provides a circular orientation of the fibers, which contributes to

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Mats are stitched with wire, glass, nylon or cotton thread, glass roving. Mats are made with open or closed edges.

Example. For the implementation of the method, a mineral wool carpet with a dust removal agent (selective cleaning extract), glass fiber canvas and a roving of glass threads are used.

The mineral wool carpet is rolled up into cylinders with a diameter greater than the thickness of the mat, which then serves as a conveyor belt, where a continuous thermal insulation layer is formed from the elementary cylinders. The heat insulating layer is applied on one or two sides of the fiberglass canvas lining and the layer together with them is fed to a piercing machine, where it is stitched with a rosetting of glass filaments with a seam pin 80 mm and a distance between the seams 160 mm.

The resulting mineral wool mat is barely. characteristics: volume without weight plates 85 kg / m, compressibility under a specific load of 2 kPa 3.5%, elasticity (the ratio of the thickness after the removal of the load to the original) 98.5%.

A mat made by a known method is characterized by the following indicators: bulk weight 86 kg / m, compressibility under the same load of 5% and elasticity of 97%.

The proposed method of manufacturing mineral-permeable pierced mats allows, due to optimal orientation and uniform distribution of fiber in the thermal insulating layer of elementary cylinders, to obtain a lower bulk density with increasing elasticity and reduced compressibility of the material being produced, which leads to an increase in operational rigidity and durability of the mats.

Products with higher elasticity, maximum compressive strength, i.e. increased operational stiffness of the product

Corrugated cardboard, paper, fiberglass can be used as liners in the manufacture of cations according to the proposed method; Canvas, fiberglass, mesh.

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A method of manufacturing mineral wool matting mats, comprising molding a heat-insulating layer from a carpet, applying lining on it. prepressing, flashing parallel seams and cutting into dimensional strips, characterized in that, in order to improve the quality of the products.

31447663

the continuous carpet is cut in the transverse direction, forming a continuous heat-insulating direction into strips, rolling up the naked layer, which, together with curtains, into cylinders with a diameter larger than us, stitch with a stitch pitch, smaller than the product thickness, then from cylinders of cylinder diameter.

Claims (1)

Claim A method of manufacturing mineral wool piercing mats, including molding of a heat-insulating layer from a carpet, applying facings to it. ₍ prepressing, flashing parallel seams and cutting into measuring strips, characterized in that, in order to improve the quality of products, from 1447663 a continuous carpet is cut in the transverse direction into strips, they are rolled into cylinders with a diameter greater than the thickness of the product, then a continuous heat-insulating cylinder is formed a layer which, together with the lining · suture, is stitched with a step of a stitch, smaller than the diameter of the cylinder.