Novel material for glasses plate and cutting ring for concrete transport pump truck and preparation method of novel material

Abstract

The invention discloses a new spectacle plate and cutting ring material for a concrete delivery pump vehicle, which is prepared from the following raw material components in mass percentages: 20-50% of titanium carbide, 0-15% of tungsten carbide, and 40% of metal bonding phase ~78%; the present invention also discloses a method for preparing a new material of spectacle plates and cutting rings for concrete delivery pump vehicles, which includes the following steps: (1) batching; (2) mixing and grinding; (3) drying and mixing molding agents; (4) sieving; (5) pressing; (6) degumming and sintering; (7) welding and grinding. The invention provides a new material for spectacle plates and cutting rings for concrete pump vehicles and its preparation method. The prepared material has excellent wear resistance, good welding performance, light specific gravity, and low cost. It can be used for customers. Significantly save manufacturing costs, and at the same time save a lot of strategic tungsten resources for the world.

Description

Technical field [0001] The invention relates to the field of preparation of new materials, in particular to a new material for glasses plates and cutting rings for concrete delivery pump trucks and a preparation method thereof. Background technique [0002] Concrete pump, also known as concrete pump, is composed of pump body and conveying pipe. It is a machine that uses pressure to continuously transport concrete along pipelines. It is mainly used in housing construction, bridge and tunnel construction. At present, it is mainly divided into gate valve concrete pump and S valve concrete pump. Another is to install the pump body on the chassis of the car, and then equip it with a retractable or flexural placing boom to form a pump truck. [0003] The glasses plate and cutting ring are the core parts, and their wear resistance and reliability are directly related to the efficiency of concrete construction. The glasses plate and cutting ring materials have undergone several generati...

AI Technical Summary

Problems solved by technology

[0004] The first generation is wear-resistant steel surfacing, and the service life is very short;

[0005] The second generation is the welded body of ordinary cemented carbide and steel substrate. The disadvantage is that the thermal expansion coefficient of ordinary cemented carbide is greatly different from that of the substrate steel. During welding, the internal stress will cause huge deformation, and in severe cases, the alloy will crack. Production and use are difficult. extremely unstable;

[0006] The third generation is iron-based cemented carbide and steel substrate welding, which solves the problem of high welding stress of the second generation products. It is now being used on a large scale, but strategic tungsten resources are still used, and the cost is still high.