Manufacturing method of adhesive cemented carbide die cutter roller

Abstract

The invention relates to the technical field of machining equipment, in particular to a manufacturing method for an adhesive cemented carbide die-cutting cutter roller. A refractory metal hard compound, cementation metal cobalt powder and a small number of additive are dosed, and are mixed and ground in an absolute ethyl alcohol ball milling medium, paraffin slurry is added, then vacuum drying, sieving and pelletizing are carried out, and a wax-doped mixing material with a certain ingredient and grain size requirement is prepared; the wax-doped mixing material identified to be qualified is subject to precision pressing, and a high precision pressing blank with a certain shape, size, density and intensity is manufactured; and die-cutting cutter blocks are manufactured from the refractory metal hard compound and cementation metal through a powder metallurgy process, then cutter block shapes are machined through follow-up machining equipment, and therefore the die-cutting cutter roller which has the beneficial effects of being high in hardness, resistant to abrasion, better in intensity and toughness, resistant to heat and corrosion, high in working speed, free of cutting edge collapsing, long in service life, low in cost and the like is obtained.

Description

technical field [0001] The invention relates to the technical field of mechanical manufacturing equipment, in particular to an adhesive cemented carbide die cutter roller and a manufacturing method thereof. Background technique [0002] In the machinery industries of disposable sanitary products, medical sanitary products, printing, packaging, etc., the existing die-cutting knife rollers are mainly divided into two types. The disadvantages of the die-cutting knife roller with this structure are: 1. The hardness of the knife roller is high, and precious metal materials are generally used, which wastes materials and costs high; 2. It is difficult to supply large-scale precious metal raw materials in the market, which limits the product quality. The processing range brings inconvenience to the actual production; one is the insert structure, that is, several knife blocks with blades are fastened to the shaft with screws. The disadvantages of the die-cutting knife roller with thi...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome a series of deficiencies such as low blade hardness, non-abrasion resistance, heat resistance, easy corrosion, edge cracking, slow working speed, short life and high cost of existing die-cutting knife rollers, the present invention provides a A kind of cemented carbide die-cutting knife roll and its manufacturing method, the die-cutting knife roll manufactured by powder metallurgy has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance

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