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Multi-structure different-interval bionic surface combined cast-iron guide rail and regeneration method thereof

A multi-structure, guide rail technology, which is applied in the direction of large fixed members, metal processing machinery parts, metal processing equipment, etc., can solve the problems of guide rail size difficult to meet the use standard, guide rail regeneration difficulty, waste of raw materials, etc., to maintain wear resistance performance , Anti-wear performance is uniform, and the effect of improving wear resistance

Inactive Publication Date: 2015-12-02
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since ordinary cast iron guide rails can only be applied after the surface is subjected to high-frequency quenching to enhance the wear resistance, and the surface quenching will inevitably lead to a gradient distribution of hardness and stress along the depth direction of the quenched layer at 1 to 5 cm, after a long period of non-uniform After wear and tear, in order to achieve uniform distribution of surface hardness and stress, it is necessary to remove all surface quenched layer structures. However, at this time, the use size of the guide rail is difficult to meet the use standard, which has caused certain difficulties for the regeneration of the guide rail.
In the past, many repair methods used the method of discarding the surface quenched structure with uneven distribution of surface mechanical properties and then filling the material to achieve its regeneration. These regeneration methods lead to a lot of waste of raw materials.
In addition, these regeneration methods only simply enhance the wear resistance of the surface, but do not match the actual non-uniform wear method well, losing the flexibility of regeneration

Method used

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  • Multi-structure different-interval bionic surface combined cast-iron guide rail and regeneration method thereof
  • Multi-structure different-interval bionic surface combined cast-iron guide rail and regeneration method thereof
  • Multi-structure different-interval bionic surface combined cast-iron guide rail and regeneration method thereof

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Experimental program
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Effect test

Embodiment 1

[0035] like figure 2 As shown, the first bionic coupling element and the second bionic coupling element are made on the working surface of the guide rail, the first bionic coupling element is a strip-shaped bionic coupling element 11, and the second bionic coupling element is a pit-shaped coupling element 12; The angle between the strip-shaped bionic coupling element 11 and the load feeding direction is 90°, and the pit-shaped coupling elements 12 are arranged around the strip-shaped bionic coupling element 11 .

[0036] like image 3 As shown, the strip-shaped bionic coupling element 11 has a "U"-shaped cross section and forms a "soft and hard" columnar structure with the parent body. Its structure is composed of high-hardness carbide and martensite, and its surface width D is 0.6mm. ~2mm, depth A H 0.3mm~0.5mm; the pit-shaped coupling element 12 is a pit-shaped coupling element with a "U"-shaped ring-shaped cross-section after being processed by a high-energy laser beam, ...

Embodiment 2

[0041] like Figure 4 As shown, the first bionic coupling element and the second bionic coupling element are made on the working surface of the guide rail, the first bionic coupling element is a mesh bionic coupling element 21, and the second bionic coupling element is a pit-like coupling element 22; The angle between the strengthening part in the vertical direction of the mesh bionic coupling element 21 and the load feeding direction is 90°, and the pit-shaped coupling elements 12 are arranged in the grid of the mesh bionic coupling element 21 . The spacing and depth of the mesh-like bionic coupling elements 21, the cross-sectional shape and depth of the pit-like coupling elements 22, and the distance between the pit-like coupling elements 22 and adjacent mesh-like bionic coupling elements 21 are the same as those in Embodiment 1.

[0042]The surface of the guide rail along the working direction of the tool is processed to form a combination of multi-structure and different-d...

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Abstract

The invention relates to a multi-structure different-interval bionic surface combined cast-iron guide rail and a regeneration method thereof. First bionic coupling elements and second bionic coupling elements are made on mild wear areas and a severe wear area of the guide rail working face; the first bionic coupling elements are strip-shaped or net-shaped bionic coupling elements, and intervals of the first bionic coupling elements in the mild wear areas are larger than those of the first bionic coupling elements in the severe wear area; the second bionic coupling elements are pit-shaped coupling elements and are distributed among the first bionic coupling elements. According to the multi-structure different-interval bionic surface combined cast-iron guide rail and the regeneration method thereof, according to the rigidity or stress distribution situations of the areas with different wear degrees, two double-coupling-element bionic surfaces with changeable intervals are set, a multi-structure different-interval bionic surface combination with different anti-wear performances is formed, and the surface of which the rigidity or the stress is distributed evenly is obtained, so that the effect that the overall anti-wear performance of the surface is uniform and stable for a long time is achieved. In addition, by means of the interaction between the two coupling elements and a machine body, the wear resistance of the sliding guide rail is further improved.

Description

technical field [0001] The invention belongs to the technical field of cast iron guide rails, and relates to a regenerated cast iron guide rail and a regenerative repair method thereof. Background technique [0002] In the machinery industry, machine tools are usually referred to as machine tools, which are the basic processing equipment in the machinery manufacturing industry. Its variety, performance, quality and technical level directly affect the performance, quality, production technology level and economics of other mechanical and electrical products. benefit. my country is the largest machine tool consumption market in the world. It currently has about 8 million machine tools. According to the internationally accepted 3% reduction rate, about 250,000 old machine tools are eliminated every year, and the total metal weight exceeds 1.5 million tons. For an old machine tool, there are generally more than 45% to 80% residual value, mainly the durable bed, column, base, et...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q1/01B23P6/00
CPCB23P6/00B23Q1/017
Inventor 隋琦周宏冯丽杨林
Owner JILIN UNIV
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