Airborne powder sending roller laser cladding preheating tool

Abstract

The invention relates to an airborne powder sending roller laser cladding preheating tool. The tool comprises a furnace body frame formed through welding angle steel and a hearth made through using a stainless steel board. The tool is characterized in that the furnace body of the tool has a top-and-bottom halving lateral opening structure, the lateral opening of the furnace body is provided with a turnable cover having folders, two ends of the turnable cover are respectively provided with a suspension ring, the inner liner of the furnace body has an asbestos thermal insulation layer and a cement asbestos board, the upper portion of the sidewall of the furnace body is provided with a thermocouple jack, the bottom of the sidewall of the furnace body is provided with a powder disc jack, and three 8kw/220v armored heating boards are arranged in the furnace body. The tool allows the temperature of the roller to rise to 400DEG C within 0.5h, avoids the influences of hot airflow to powder sending, makes the molding quality of a cladding layer be well controlled, and has the characteristics of simple operation, convenient dismounting and mounting, and easy and fast maintenance.

Description

technical field [0001] The invention relates to a heating tool, in particular to a laser cladding preheating tool suitable for air-borne powder feeding rolls. Background technique [0002] The original gravity powder feeding roller laser cladding preheating tooling relies on gravity powder feeding, which can basically meet the general processing requirements. However, with the continuous advancement of technology and the gradual introduction of new technologies, laser processing has gradually entered many new fields, especially the introduction of airborne powder feeding methods. The original gravity powder feeding roller laser cladding preheating tooling can no longer To meet the current processing requirements, there are mainly obvious defects in the following aspects. [0003] 1. It affects the surface forming quality of the powder. Due to the interaction between the hot air flow generated by the tooling and the powder feeding air flow, it affects the transportation of t...

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Problems solved by technology

[0003]1. Affects the surface forming quality of the powder. Due to the interaction between the hot air flow generated by the tooling and the powder feeding air flow, it affects the transportation of the powder to the molten pool, resulting in the surface of the laser cladding layer The unevenness does not meet the process requirements

[0004]2. The controllability is poor during the process of cladding. Since the opening of the original tooling is above the furnace body and the opening is very narrow, it is difficult for the operator to carry out the cladding process. Effective observation, the entire cladding process cannot be effectively controlled

[0005]3. There is no powder recovery device. Since the single powder utilization rate of airborne powder feeding is low and only about 30%, the lack of powder recovery device is bound to waste cost

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