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Laser-clad side guide plate and machining method thereof

A technology of laser cladding and side guide plate, which is applied in the direction of metal processing equipment, manufacturing tools, superimposed layer coating, etc., can solve the problems of poor wear resistance of side guide plate and low service life of side guide plate, so as to avoid edge damage of strip steel, The effect of improving product quality and reducing the amount of addition

Active Publication Date: 2019-12-20
上海大陆天瑞激光表面工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of this invention is to solve the problem of low service life of the side guide plate. After repeated tests and researches, a special composite side guide plate for metallurgical hot-rolled coil production line has been developed, and laser cladding technology is used to clad three layers on the surface of the common steel plate substrate. materials, each layer has different functions, so that the side guide plate has the functions of high temperature resistance, oxidation resistance, wear resistance, fatigue resistance and self-lubrication
Thus greatly improving the service life of the side guide plate, the service life of the ultra-wear-resistant side guide plate manufactured by laser is more than 5 times higher than that of traditional surfacing repair, effectively solving the problem of poor wear resistance of the side guide plate and frequent shutdowns and replacements. , while improving product quality, increasing the production line capacity by 3% to 5%

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Use a 5KW carbon dioxide laser to perform laser cladding on the functional area of ​​the side guide plate: the mass percentage of the alloy elements of the designed wear-resistant layer material is:

[0059] The bottom layer is the surface layer, which is the anti-corrosion alloy layer: Cr: 3%; Mo: 8%; W: 9%; AlTi: 2%; B: 0.1%, Cu: 2%, Si: 1.5%, C: 0.3%, nickel The margin, the thickness of the bottom layer is 0.05mm;

[0060] The middle layer is the wear-resistant alloy layer: BN: 1%; Cu: 3%; Ti: 0.5%, MoS 2 : 0.5%, graphene (C n ): 0.3%; Ni balance; the thickness of the middle layer is 1.0mm;

[0061] The surface layer is the anti-corrosion alloy layer: Co: 8%; Cr: 5%; Ti: 0.3%, Al 2 o 3 : 0.3%; Ni balance, the surface thickness is 0.8mm.

[0062] The laser cladding side guide plate processing method includes the following steps:

[0063] 1) Choose No. 45 steel plate as the steel plate base material;

[0064] 2) Surface pretreatment of the steel plate base mater...

Embodiment 2

[0069] Use a carbon dioxide gas 5KW laser to perform laser cladding on the functional area of ​​the side guide plate. The mass percentage of the alloy elements of the designed wear-resistant layer material is:

[0070] The bottom layer is the surface layer, which is the anti-corrosion alloy layer: Cr: 6%; Mo: 12%; W: 10%; AlTi: 5%; B: 0.6%, Cu: 5%, Si: 3.6%, C: 1.0%, nickel The margin, the thickness of the bottom layer is 0.8mm;

[0071] The middle layer is the wear-resistant alloy layer: BN: 5%; Cu: 6%; Ti: 2%, MoS 2 : 2%, graphene (C n ): 2%; Ni balance, the thickness of the middle layer is 0.1mm;

[0072] The surface layer is the anti-corrosion alloy layer: Co: 15%; Cr: 20%; Ti: 1.8%, Al 2 o 3 : 1.6%; Ni balance, the surface thickness is 1.0mm.

[0073] The laser cladding side guide plate processing method includes the following steps:

[0074] 1) Choose 304 stainless steel plate as the steel plate base material;

[0075] 2) Surface pretreatment of the steel plate b...

Embodiment 3

[0080] Use a carbon dioxide gas 5KW laser to carry out laser cladding on the functional area of ​​the side guide plate, and the mass percentage of the alloy elements of the designed wear-resistant layer material:

[0081] The bottom layer is the surface layer, which is the anti-corrosion alloy layer: Cr: 4.5%; Mo: 10%; W: 9.5%; AlTi: 3%; B: 0.4%, Cu: 3.5%, Si: 3.0%, C: 0.7%, nickel Margin, bottom layer thickness is 0.4mm

[0082] The middle layer is the wear-resistant alloy layer: BN: 2.5%; Cu: 4%; Ti: 1.2%, MoS 2 : 1.3%, graphene (C n ): 1.2%; Ni balance, the thickness of the middle layer is 0.5mm;

[0083] The surface layer is the anti-corrosion alloy layer: Co: 11.5%; Cr: 10%; Ti: 1.1%, Al 2 o 3 : 1.2%; Ni balance, the surface thickness is 0.1mm.

[0084] The laser cladding side guide plate processing method includes the following steps:

[0085]1) Select 202 stainless steel plate as the steel plate base material;

[0086] 2) Surface pretreatment of the steel plate b...

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Abstract

The invention discloses a laser-clad side guide plate and a machining method thereof. A cladding layer with a sandwich structure is machined on a common steel plate matrix through a laser cladding method, and the cladding layer is composed of three layers, that is, a bottom layer, a middle layer and a surface layer. A nickel-based high-temperature alloy system is adopted as an overall material system, the bottom layer has high toughness and is used for realizing an antifatigue function, the middle layer realizes the functions of wear resistance and self-lubricating, and the surface layer realizes the functions of ablation resistance and oxidation resistance. The three-layer structure forms a functionally-graded composite plate, and the composite plate has high-temperature resistance, oxidation resistance, wear resistance and corrosion resistance simultaneously, and has toughness to a certain extent to bear an impact force in a service process, so that the special performance requirements of wear resistance, high-temperature resistance, corrosion resistance, oxidation resistance and impact resistance which are needed in the service process of the side guide plate before the coilingof a production line for a metallurgical hot-rolled coiled plate, are met.

Description

technical field [0001] The invention belongs to the field of mechanical manufacturing, and relates to laser additive manufacturing composite plates used for super wear-resistant side guide plates in a metallurgical hot-rolled coil production line, in particular to a laser cladding side guide plate and a processing method thereof. Background technique [0002] The side guide plate of the coiler is one of the key core components of the hot-rolled strip equipment. It is located on the conveying roller table between the laminar flow cooling and the coiler. When working, it clamps the strip and guides it correctly into the pinch roller of the coiler. , to guide and center the hot-rolled strip. During the strip coiling process, the side guide plate exerts a clamping force of 3 to 5 tons according to different thicknesses, and the edge of the strip steel and the working area of ​​the side guide plate produce severe friction, accompanied by impact, corrosion, and high temperature, r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10C22C19/03C22C19/05C22C32/00B21B15/00B21B39/14B21C47/02B21C47/34
CPCB21B15/00B21B39/14B21B2015/0057B21C47/02B21C47/3433C22C19/03C22C19/057C22C19/058C22C32/00C23C24/103C23C24/106C23C28/021
Inventor 钱余昕吴年硕李雷陈江
Owner 上海大陆天瑞激光表面工程有限公司
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