RU2588647C1 - Method of making lining plates - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: method relates to grinding or crushing of various materials and can be used in making lining plates of different profile. Production of lining plates is performed in two stages, wherein two plates from non-polymerised elastomer material for lower and upper parts of article and a flexible frame with wear-proof inserts are installed on it. At first stage to die bottom plate for lower part is placed, in which elastic carcass is pressed with inserted in it wear-proof inserts against wear-resistant inserts in bottom of mold till stop. At second stage plate for upper part is pressed to connection with lower elastomer material for creation of solid monolithic structure. After polymerisation monolithic ready product is removed from mold.

EFFECT: method simplifies production of lining products, higher reliability and durability of lining plates.

1 cl, 3 dwg

Description

The invention relates to the grinding and transportation of mineral raw materials, in particular to linings, and can be used in the manufacture of lining plates of various profiles for the protection of work surfaces in contact with the crushed material under shock-abrasive nature of the loads, in enterprises in the metallurgical, mining, construction, chemical and other industries.

Known methods of manufacturing a lining plate, including pouring under pressure an elastomeric material into a mold with the placement of wear-resistant inserts in the working surface obtained by the elastomeric base of the lining plate, forming a solid monolithic structure with subsequent polymerization of the elastomeric material (see, for example, RF patent No. 221459 IPC B02C 17/22, op. 10.04.2008. And RF patent for floor model No. 146076, IPC B02C 17/22, op. 09.27.2014).

The closest in technical essence is a method of manufacturing a lining plate, including pouring under pressure an elastomeric material into a mold with the placement of wear-resistant inserts in the working surface obtained by the elastomeric base of the lining plate, forming a solid monolithic structure with subsequent polymerization of the elastomeric material (see RF patent for Utility model No. 146076 according to IPC B02C 17/22, op. September 27, 2014).

A common disadvantage of the known methods is the inability to produce a lining plate with an elastic frame integrated in its body for uniform distribution of impact-abrasive loads across the plate, the impossibility of producing plates of complex shape without an elastic frame that reliably holds ceramic wear-resistant inserts during pouring with elastomeric material and during operation.

The technical result is to simplify the manufacture of lining products with high strength and durability.

The technical result is achieved by the fact that in the method of manufacturing a lining plate from an elastomeric material with wear-resistant properties, which includes injection of elastomeric material under pressure into a mold with placement of wear-resistant inserts in the working surface of the elastomeric base of the lining plate, forming a solid monolithic structure with subsequent polymerization of the elastomeric material, according to the invention, the manufacture of the lining plate is carried out in two stages, pouring is performed using two a plate of unpolymerized elastomeric material for the lower and upper parts of the product and the elastic frame with wear-resistant inserts pre-installed on it, and at the first stage, a plate for the lower part is laid on the bottom of the mold, into which the elastic frame with the wear-resistant inserts inserted into it are pressed all the way wear-resistant inserts in the bottom of the mold, in the second stage, the plate for the upper part is pressed into connection with the lower elastomeric material to create an integral monolithic structure, and then, after polymerization, the finished monolithic product is removed from the mold.

In the manufacture of a lining plate using the proposed method, wear-resistant inserts can be used from various durable materials, such as ceramics or cermets, and the elastic frame can be made, for example, in the form of a mesh, lattice or elastic plate with holes for wear-resistant inserts.

Wear-resistant inserts can be made of various shapes and their installation on an elastic frame with a rigid or non-rigid mount.

The manufacture of the lining plate is illustrated in the example of a specific embodiment in the manufacture of a flat lining plate using an elastic frame in the form of a metal plate with holes for wear-resistant inserts made of ceramic in the form of a truncated cone with a shoulder in the base.

On fragments of schematic drawings in the context of a phased production of the product is explained. In FIG. 1 shows the starting position before the first step; in FIG. 2 shows the position after the first stage; in FIG. 3 - initial position before the second stage.

The drawings show an elastic frame 1, wear-resistant inserts 2 with flanges 3, a plate for the lower part 4, a plate for the upper part 5, the mold matrix 6, the mold punch 7, and the elastic pressure plate 8.

The manufacture of the lining plate is carried out in two stages. First, at the first stage, a plate for the lower part 4 is laid on the bottom of the mold die 6, onto which an elastic frame 1 with wear-resistant inserts 2 inserted into its holes are installed, the beads 3 of which abut against the elastic frame 1, which is previously degreased and treated with special glue for adhesion improvement.

The elastic frame 1 with wear-resistant inserts 2 is closed with a clamping elastic plate 8, which, by pressing on the wear-resistant inserts 2, presses them into the unpolymerized elastomeric material of the plate for the lower part 4 to the bottom of the mold die 6, while the wear-resistant inserts 2 and the elastic frame 1. Then, in the second stage, the pressure elastic plate is removed, and the plate for the upper part 5 is laid in its place and pressed until it is connected to the lower layer of elastomeric material using the lower punch of the mold 7 by means of a press mechanism (not shown in the drawing).

The unpolymerized elastomeric material, having great fluidity, fills under pressure all the gaps between the wear-resistant inserts, which are firmly fixed together with the elastic frame in the formed monolithic structure of elastomeric material. After polymerization of the elastomeric material, the finished product is removed from the mold.

In the lining plate manufactured by the claimed method, the elastic frame and the ceramic-metal wear-resistant inserts are placed in the elastomeric material, the upper surface of each wear-resistant insert being located on the same level with the elastomeric base, forming the working surface of the lining plate.

When using the proposed method, an elastomeric material based on polyisoprene, butyl rubber, polychloroprene, neoprene, ethylene vinyl acetate, polyurethane, and other materials based on rubbers and polymers can be applied. To implement the proposed method can be used elastomeric materials based on rubber and polymers with the addition of appropriate known chemical additives to obtain products from an elastomeric material with wear-resistant properties.

The proposed method allows to obtain a lining plate with high strength, in which wear-resistant inserts interact with the elastic frame as a whole and are held in an elastomeric basis until they are completely abraded under shock-abrasive nature of the loads, which increases the reliability and durability of the lining plate.

The proposed method allows to simplify the manufacture of lining products of complex shape for specific tasks and equipment, thereby expanding the functional and technical capabilities of the product.

Claims (1)

A method of manufacturing a lining plate, including pouring the elastomeric material under pressure into a mold with placing wear-resistant inserts in the working surface obtained by the elastomeric base of the lining plate, forming a solid monolithic structure with subsequent polymerization of the elastomeric material, characterized in that the manufacture of the lining plate is carried out in two stages , pouring is carried out using an elastic frame for wear-resistant inserts and two plates of unpolymerized elastomeric material d For the lower and upper parts of the product, and at the first stage, a plate for the lower part is laid on the bottom of the mold, into which the elastic frame with wear-resistant inserts previously inserted into it is pressed into the bottom of the mold, then in the second stage the plate for the upper the parts are pressed to join with the elastic frame and the plate for the lower part, forming a solid monolithic product, which after polymerization of the elastomeric material is removed from the mold.

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