Workpiece surface treatment apparatus and workpiece surface treatment method

Abstract

The purpose of the present invention is to provide an epoch-making workpiece surface treatment device and a workpiece surface treatment method using the workpiece surface treatment device, wherein theworkpiece surface treatment device stably transports a workpiece and performs surface treatment on the workpiece without hindering the rotation of the workpiece or tilting or falling down the workpiece. A slurry ejection unit (2) for ejecting slurry to a workpiece (W) is a slit nozzle type (wide-width gun) in which a slurry ejection port is configured to be slit-shaped, and the slurry ejection port of the slurry ejection unit (2) is disposed at an inclination of a predetermined angle with respect to the workpiece (W) so that the slurry ejection port of the slurry ejection unit (2) faces the conveyance direction of the workpiece (W) and ejects the slurry to the workpiece (W) in an inclined belt shape.

Description

technical field [0001] The present invention relates to a workpiece surface treatment device and a workpiece surface treatment method using the workpiece surface treatment device. Background technique [0002] Cold forging, which is used as a method of manufacturing machine parts, has the disadvantage that the shape that can be manufactured is limited compared to manufacturing by cutting, but it has many advantages such as almost no material loss, significant reduction in material costs, and processing. The time is short, the mass productivity is excellent, and products with excellent strength and abrasion resistance can be produced. [0003] However, in the case of using this cold forging, in order to improve the mold release of the forged part, or to prevent damage to the mold or the forged part itself caused by the heat or contact pressure generated during processing, the surface treatment is often used. Forged parts treated with lubricant (phosphating to form a lubricat...

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Problems solved by technology

[0004] Regarding this phosphating treatment, there are many treatment steps in the conventional treatment, so the treatment facilities (equipment) have also become large-scale, and the chemical Disposal of waste or contaminated waste liquid generated by the reaction is extremely cumbersome, and there are various problems including environmental aspects. In recent years, a coating type that applies a lubricant to the surface of the workpiece by spraying or dipping with less environmental load Increased demand for lubricants

[0005] However, if the coating amount of this coating type lubricant is too much, it will contaminate the molding die, and if the coating amount is too small, it will not be able to obtain sufficient In the case of poor lubricating effect, it is extremely important to control the amount of coating, but its management is very troublesome

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