Heat treatment assisted laser cladding method

An auxiliary laser and laser cladding technology, which is applied in heat treatment equipment, heat treatment process control, metal material coating technology, etc., can solve the problems of high sensitivity to laser cracks, achieve simple equipment, prolong growth time, and eliminate tissue defects. Effect

Active Publication Date: 2018-08-03
FUJIAN UNIV OF TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a heat treatment-assisted laser melting method that overcomes the shortcomings of high crack sensitivi

Method used

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
View more

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] A heat treatment assisted laser cladding method includes the following steps:

[0024] Step 10. After the substrate surface is cleaned, the pre-layer is placed on the substrate, and the substrate with the pre-layer is placed in the workbench of the heat treatment furnace; or the substrate with the clean surface pretreated first is placed in the workbench of the heat treatment furnace , And then place the preset layer on the substrate;

[0025] Step 20. Close the lid of the heat treatment furnace to form a closed space. The heat treatment furnace will increase the temperature in the heat treatment furnace at a rate of 5°C-10°C per minute until it reaches the preset furnace temperature of the heat treatment furnace; The temperature in the furnace is set according to the temperature that can realize the softening of the substrate surface;

[0026] Step 21: After reaching the preset furnace temperature of the heat treatment furnace, keep it at this temperature for at least one ho...

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
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a heat treatment assisted laser cladding method. The method comprises the following steps that firstly, after the surface of a substrate is pretreated, a precoated layer is arranged on the substrate, and the substrate provided with the precoated layer is arranged on a workbench of a heat treatment furnace; secondly, a lid of the heat treatment furnace is closed to form a confined space, and the furnace inner temperature of the heat treatment furnace is increased according to the speed that the temperature of the heat treatment furnace is increased by at most 10 DEG C perminute, till a preset furnace inner temperature of the heat treatment furnace is reached; thirdly, the lid of the heat treatment furnace is opened, and a laser is aligned with the precoated layer arranged on the substrate, so that laser cladding is performed; fourthly, the lid of the heat treatment furnace is closed to form the confined space, the substrate subjected to laser cladding is cooled to the room temperature in the heat treatment furnace; and fifthly, the substrate subjected to laser cladding is taken out. According to the heat treatment assisted laser cladding method which is efficient, easy and convenient to operate and environmentally friendly, the shortcoming that the crack sensitivity is high in the quick laser heating and cooling processes is overcome.

Description

technical field [0001] The invention relates to the field of laser cladding, in particular to a heat treatment-assisted laser cladding method. Background technique [0002] Heat treatment refers to a metal thermal processing process in which the chemical composition and structure of the surface or interior of the material are changed by means of heating, heat preservation and cooling in the solid state to obtain the required properties. Common heat treatments include: normalizing, annealing, tempering and quenching, taking annealing as an example. Annealing is a metal heat treatment process, which refers to slowly heating the metal to a certain temperature, keeping it for a sufficient time, and then cooling it at an appropriate speed. The purpose is to reduce hardness, improve machinability; eliminate residual stress, stabilize size, reduce deformation and crack tendency; refine grain, adjust structure, and eliminate structure defects. To be precise, annealing is a heat tr...

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
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C23C24/10C21D1/00C21D11/00
CPCC21D1/00C21D11/00C23C24/103
Inventor 简明德孔令华练国富雷鹏达
Owner FUJIAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap