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Metal pretreatment technological process

A process and pre-treatment technology, applied in metal material coating process, chemical instruments and methods, cleaning methods and utensils, etc., to achieve the effect of convenient process and safe and controllable treatment process

Inactive Publication Date: 2018-05-04
XIKE METAL KUNSHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no metal pretreatment process with controllable process and easy automatic operation.

Method used

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Embodiment Construction

[0011] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with specific embodiments. Apparently, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0012] First, the workpiece to be treated is washed with water for the first time by spraying. The water temperature of the first water washing is 40°C-45°C, the washing time is 30s-60s, and the spraying pressure is 0.8Mpa-0.15Mpa. For degreasing, the spray pressure is 0.8Mpa-0.15Mpa, the spray time is 30s-60s, the spray temperature is 40°C-45°C, the alkalinity of the degreasing agent used for spraying is 35-40pt, and then the main degreasing is carried out by soaking. The soaking time is 180s...

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Abstract

The invention discloses a metal pretreatment technological process. The metal pretreatment technological process comprises the following steps of 1, primary washing; 2, degreasing; 3, middle-stage water washing; 4, surface adjustment; 5, phosphorization; and 6, later-stage water washing. According to the metal pretreatment technological process, workpieces are treated, the treatment process is safe and controllable, the process can be conveniently and automatically operated, the workpiece processing process can be adjusted at any time, and the surface treatment process of the different workpieces can be met; and meanwhile, the mutual influence between the processes of the metal pretreatment technological process can be reduced to the minimum, and the technological process can be monitoredat any time and can be adjusted.

Description

technical field [0001] The invention relates to the field of metal treatment, in particular to a metal pretreatment process flow. Background technique [0002] Generally, there are two explanations for surface treatment in China. One is surface treatment in a broad sense, that is, the process methods including pretreatment, electroplating, coating, chemical oxidation, thermal spraying and many other physical and chemical methods; the other is Surface treatment in a narrow sense, which only includes sandblasting, polishing, etc., is what we often call the pre-treatment part. What we are talking about below is mainly surface treatment in a narrow sense. [0003] During the process of processing, transportation, storage, etc., the surface of the workpiece is often covered with scale, mold sand, welding slag, dust, oil and other dirt left by rust molding. In order for the coating to be firmly attached to the surface of the workpiece, the surface of the workpiece must be cleane...

Claims

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Application Information

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IPC IPC(8): C23C22/07C23C22/78C23G5/00B08B3/02B08B3/08
CPCC23C22/07B08B3/02B08B3/08C23C22/78C23G5/00
Inventor 朱鹏
Owner XIKE METAL KUNSHAN
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