Ceramic particle multi-scale reinforced metal matrix composite wear-resistant rake tooth head and preparation method thereof

A technology of metal-based composite and ceramic particles, which is applied in the field of parts preparation, can solve the problems of limited service life, inability to fully use most of the structure of the tooth head, and limited thickness of the composite wear-resistant layer on the surface of the tooth head, so as to avoid brittleness, The effect of promoting the composite process of insert casting metallurgy and omitting the assembly process
CN108380850BActive Publication Date: 2020-03-17KUNMING UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
KUNMING UNIV OF SCI & TECH
Publication Date
2020-03-17

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Abstract

The invention discloses a ceramic particle multi-scale reinforced metal-based composite wear-resistant rake tooth head and a preparation method thereof, belonging to the field of parts preparation. The invention prepares rod-shaped composite materials by pressing and sintering ceramic particles and alloy powders, and inlays multiple rod-shaped composite materials in a metal matrix in combination with an inlay casting process, so as to realize wrapping of evenly distributed multiple rod-shaped composite materials by the metal matrix. The rake tooth head of the present invention avoids the problems of common rake teeth being easy to wear, homogeneous composite wear-resistant parts having poor toughness, brittleness and impact resistance, and adopting the combination process of powder metallurgy and inlay casting, compared with the overall metallurgical sintering, the parts are guaranteed Precise size, meeting the performance requirements of specific components, omitting the assembly process, simplifying the manufacturing process to a certain extent, greatly reducing the cost of parts preparation compared with the overall metallurgical sintering, dense structure and good metallurgical bonding, can be applied to cleaning vehicles and railway maintenance vehicles Rake bucket rock loading machine rake tooth parts, etc.
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Description

technical field

[0001] The invention belongs to the technical field of parts preparation, and in particular relates to a ceramic particle multi-scale reinforced metal matrix composite wear-resistant rake tooth head and a preparation method thereof. Background technique

[0002] The cleaning truck for railway maintenance is mainly used for backfilling after loosening the rock slag on the railway bed. The rake bucket rock loader is an important mining equipment used for excavation and tunneling. The rake tooth is an important part of the two equipments. One of them is also an important part of some mining machinery and road maintenance machinery. The quality of the rake tooth head determines the speed of the work efficiency of this type of equipment. Rake tooth heads are subjected to different degrees of wear and impact under different working conditions, resulting in different degrees and different forms of failure, while ceramic particle reinforced metal matrix composites ha...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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