堆焊 热处理修复技术/Surfacing heat treatment repair technology

       用电焊或气焊法把金属熔化，堆在工具或机器零件上的焊接法。

A welding method that involves melting metal by electric welding or gas welding and stacking it on tool or machine parts.

热喷涂 热处理修复技术/Thermal spray heat treatment repair technology

      将熔融状态的喷涂材料，通过高速气流使其雾化喷射在零件表面上，形成喷涂层的一种金属表面加工方法。

A metal surface processing method that atomizes and sprays molten spray materials onto the surface of parts through high-speed gas flow to form a spray coating.

激光堆焊 热处理修复技术/Laser surfacing heat treatment repair technology

       激光焊接技术属于熔融焊接，以激光束为能源，使其冲击在焊件接头上以达到焊接目的的技术。

Laser welding technology belongs to fusion welding. It uses a laser beam as the energy source to impact the joint of the workpiece to achieve the welding purpose.

激光堆焊 冷处理修复技术/Laser surfacing cold treatment repair technology.

         借助电化学方法，以浸满镀液的镀笔为阳极，使金属离子在负极（零件）表面上放电结晶，形成金属覆盖层的工艺过程。

The process of forming a metal coating layer by discharging and crystallizing metal ions on the surface of the negative electrode (part) with a pen immersed in the plating solution as the anode through electrochemical methods.

电镀 冷处理修复技术/Electroplating cold treatment repair technology

       利用电解原理在某些金属表面上镀上一薄层其它金属或合金的过程。

The process of depositing a thin layer of other metals or alloys on the surface of certain metals by using the principle of electrolysis.

存在问题：

●堆焊修复对零件会造成热应力和热变形，在使用过程中会造成工作的断裂。

●热喷涂修复与堆焊一样也会造成热应力或者变形，与堆焊不同的是，热喷应力会产生表层脱落的情况。

●激光堆焊优于堆焊和热喷涂，但在修复过程中局部会产生2200℃高温，也会有热变形和热应力的情况，应力一旦爆发，也会断裂。

●电刷镀属于冷修复，它的相度厚度较低，一般只能达到7-15丝直径的修复，而且只能做轴承位的临时处理。

●电镀中有镀铬修复，它的相对厚度较低，适应范围较少，只能达到直径7-8丝以内。

Existing problem：

●Surfacing repair can cause thermal stress and thermal deformation to parts, which may lead to working fractures during use.

●Thermal spray repair, like surfacing, can also cause thermal stress or deformation. Unlike surfacing, thermal spray stress can lead to surface peeling.

●Laser surfacing is superior to surfacing and thermal spraying, but during the repair process, local temperatures of 2200℃ will be generated, and there will also be thermal deformation and thermal stress. Once the stress breaks out, it will also cause fracture.

●Brush plating belongs to cold repair. Its phase thickness is relatively low, generally only reaching 7 to 15 microns in diameter for repair, and it can only be used for temporary treatment of bearing positions.

●In electroplating, there is chromium plating repair. Its relative thickness is relatively low and its application range is limited, only reaching a diameter of 7 to 8 microns or less.