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Composite extrusion roller, and preparation method thereof

A technology of composite extrusion and reinforced composite layer, which is applied in the direction of grain processing, etc., can solve the problems of increasing the manufacturing cost of roller presses, high carbide costs, and complicated preparation processes, so as to save costs, improve wear resistance, and simplify production The effect of craft

Inactive Publication Date: 2017-03-22
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of this method is complicated, the equipment requirements are high, and the manufacturing cost is increased.
Chinese invention patent CN102784686A discloses a stud for a rolling machine. The method is to prepare the stud by powder metallurgy low-pressure sintering after mixing the carbide and the binder phase. machine manufacturing cost

Method used

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  • Composite extrusion roller, and preparation method thereof
  • Composite extrusion roller, and preparation method thereof
  • Composite extrusion roller, and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] The composite extrusion roller described in this embodiment includes a wear-resistant stud 4, a roller sleeve 5, and a roller body 6. The outer surface of the roller body 6 is covered with a roller sleeve 5, and the roller sleeve 5 is composited by a metal matrix layer 2 and a ceramic reinforcement. layer 1, the metal matrix layer 2 is located on the side close to the roller body 6, a plurality of honeycomb holes 3 are arranged on the outer circumference of the roller sleeve 5, and the wear-resistant studs 4 are assembled into the honeycomb holes 3 through interference fit; the metal The thickness of the matrix layer 2 is 50 mm, the thickness of the ceramic reinforced composite layer 1 is 10 mm, the depth of the honeycomb holes 3 is 20 mm; the diameter of the honeycomb holes 3 is 8 mm, and the height of the wear-resistant studs is 25 mm; the honeycomb holes 3 are equidistantly arranged , honeycomb hole spacing 20mm, such as Figure 1~3 shown.

[0028] The preparation m...

Embodiment 2

[0033] The composite extrusion roller described in this embodiment includes a wear-resistant stud 4, a roller sleeve 5, and a roller body 6. The outer surface of the roller body 6 is covered with a roller sleeve 5, and the roller sleeve 5 is composited by a metal matrix layer 2 and a ceramic reinforcement. layer 1, the metal matrix layer 2 is located on the side close to the roller body 6, a plurality of honeycomb holes 3 are arranged on the outer circumference of the roller sleeve 5, and the wear-resistant studs 4 are assembled into the honeycomb holes 3 through interference fit; the metal The thickness of the base layer 2 is 120mm, the thickness of the ceramic reinforced composite layer 1 is 25mm, the depth of the honeycomb holes 3 is 30mm; the diameter of the honeycomb holes 3 is 15mm, and the height of the wear-resistant studs is 40mm; the honeycomb holes 3 are equidistantly arranged , honeycomb hole spacing 30mm, such as Figure 1~3 shown.

[0034] The preparation method...

Embodiment 3

[0039] The composite extrusion roller described in this embodiment includes a wear-resistant stud 4, a roller sleeve 5, and a roller body 6. The outer surface of the roller body 6 is covered with a roller sleeve 5, and the roller sleeve 5 is composited by a metal matrix layer 2 and a ceramic reinforcement. layer 1, the metal matrix layer 2 is located on the side close to the roller body 6, a plurality of honeycomb holes 3 are arranged on the outer circumference of the roller sleeve 5, and the wear-resistant studs 4 are assembled into the honeycomb holes 3 through interference fit; the metal The thickness of the matrix layer 2 is 80mm, the thickness of the ceramic reinforced composite layer 1 is 30mm, the depth of the honeycomb holes 3 is 50mm; the diameter of the honeycomb holes 3 is 20mm, and the height of the wear-resistant studs is 30mm; the honeycomb holes 3 are equidistantly arranged , honeycomb hole spacing 40mm, such as Figure 1~3 shown.

[0040] The preparation metho...

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Abstract

The invention discloses a composite extrusion roller, and a preparation method thereof, and belongs to the field of metal-based composite material. The composite extrusion roller composite wear-resistant pillar nails, a roller shell, and a roller body; the roller body is sleeved by the roller shell; the roller shell is composed of a metal matrix layer and a ceramic reinforced composite layer; the metal matrix layer is arranged to be close to the roller body; the outer periphery of the roller shell is provided with a plurality of honeycomb holes; and each pillar nail is inserted into a corresponding honeycomb hole via interference fit. The preparation method is capable of solving problems of conventional extrusion rollers that wear is easily caused, service life is short, and maintenance cost is high; and possesses following steps: the ceramic reinforced metal matrix extrusion roller shell provided with the honeycomb holes is prepared; and the wear-resistance pillar nails are inserted into the honeycomb holes so as to obtain the novel wear-resistance extrusion roller.

Description

technical field [0001] The invention relates to a compound extrusion roll and a preparation method thereof, belonging to the field of metal-based composite materials. Background technique [0002] As a high-efficiency and energy-saving crushing equipment, roller presses have been widely used in industries such as cement and building materials. With the development of roller press technology, they have been applied in mine crushing and grinding operations. The roller press can increase the production efficiency of the crushing system by 30%-400%, and reduce the energy consumption by 20%-30%. When the roller press is working, the two opposite-moving extrusion rollers generate a huge extrusion force under the action of the hydraulic system to crush the material. At this time, the roller surface needs to bear the pressure of 50-300MPa, which will generate strong friction with the material and be subjected to the impact force of the material, so the roller surface is very easy t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C4/30B22D19/00C22C30/00C22C38/04C22C38/08C22C32/00C22C29/00
CPCC22C29/00C22C30/00C22C32/00C22C38/04C22C38/08B02C4/30B22D19/00
Inventor 蒋业华贾元伟周谟金张孝足王楠
Owner KUNMING UNIV OF SCI & TECH
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