Laser composite manufacturing hot galvanizing air knife lip and manufacturing method thereof

A manufacturing method and hot-dip galvanizing technology, applied in hot-dip plating process, coating, metal material coating process, etc., can solve the problem of unstable quality of galvanized sheet, and achieve stable and high mechanical properties and dimensional accuracy. Effects of toughness and wear resistance

Inactive Publication Date: 2017-11-28
谷云蕾
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] In order to solve the problem that the upper and lower knife lips in the hot-dip galvanizing air knife device are easily corroded by hot zinc to form zinc nodules and to clean the zinc nodules and damage the surface of the knife li

Method used

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  • Laser composite manufacturing hot galvanizing air knife lip and manufacturing method thereof
  • Laser composite manufacturing hot galvanizing air knife lip and manufacturing method thereof
  • Laser composite manufacturing hot galvanizing air knife lip and manufacturing method thereof

Examples

Experimental program
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Example Embodiment

[0039] Such as Figure 4 , Is the structure drawing of the upper knife lip blank, using 42CrMo as the base material. The blank 8 processes two cladding grooves 9 and 10 at the cutting edge position. The two upslope angles of the cladding groove are 30°, the flat bottom is about 2mm wider than the actual knife lip width, and the groove depth is 1.5-1.8mm.

[0040] Such as Figure 5 , Is the structure diagram of the tool lip processing auxiliary tooling, using carbon alloy steel as the base material, and processing the groove 12 on the side of the tooling 11 according to the size of the tool lip blank. Put the blank 8 into the finished tooling groove 12, the groove 12 mainly serves to restrain the blank 8 to prevent plane distortion during the laser cladding process, and drill a row of screw holes 13 on the other side of the upper surface of the tooling 11. , Screw the stud 14 through the hole 13 on the pressure plate 15, install a washer 16 on the stud 14 and tighten the nut 17, p...

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Abstract

The invention describes the manufacturing process, structural form and cladding material of the hot-dip galvanized air knife lip manufactured by laser compounding. The laser is used as the heat source on the upper and lower knife lips of the air knife device, and the cobalt-based material with wear resistance, corrosion resistance and high mechanical properties is clad as a functional layer. The functional layer is a superalloy and is compatible with the substrate Metallurgical combination, when the working temperature of the upper and lower lips is around 400°C, the air knife edge maintains the same opening position and does not stick to liquid zinc, and at the same time ensures that the air knife edge will not be scratched when cleaning the attached zinc, ensuring that the gas The long-term stable use of the knife lip ensures the quality of the end product and improves economic benefits.

Description

technical field [0001] The invention relates to a hot-dip galvanized air knife lip, especially a laser composite manufacturing method and process flow of the knife lip. Background technique [0002] Hot-dip galvanizing, also known as hot-dip galvanizing, is a method in which steel components are immersed in molten zinc to obtain a metal coating. In recent years, with the rapid development of high-voltage power transmission, transportation, and communication, especially automobiles and household appliances have higher and higher requirements for the protection of steel parts, which brings higher and higher requirements for surface-treated steel plates. The first problem to be solved is the corrosion resistance of steel plates. performance and rust resistance. In the face of huge market demand, many steel mills have built continuous hot-dip galvanizing production lines. The annual output increased sharply from 286 tons in 2002 to 19.1 million tons in 2009. [0003] The hot-...

Claims

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Application Information

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IPC IPC(8): C23C2/16C23C2/06C23C24/10
CPCC23C2/16C23C2/06C23C24/103
Inventor 谷云蕾
Owner 谷云蕾
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